Settling tank for sewage treatment

Abstract

The utility model discloses a sedimentation tank for sewage treatment, which comprises a tank body, two sides of the bottom wall of the tank body are inclined, the bottom end of the tank body is fixedly connected with a collecting tank, the top of the tank body is fixedly provided with a top plate, and the middle part of the top plate is connected with a pesticide spreading and stirring assembly in a penetrating manner; a pesticide mixing hopper is fixedly installed on the upper surface of the top plate and located above the pesticide spreading and stirring assembly, a pesticide discharging pipe is fixedly connected to the bottom end of the pesticide mixing hopper, the bottom end of the pesticide discharging pipe communicates with the pesticide spreading and stirring assembly, and a driving assembly for driving the pesticide spreading and stirring assembly to rotate is fixedly installed on the upper surface of the top plate. According to the sewage treatment device, the tank body, the collecting tank, the top plate, the medicine spreading and stirring assembly, the medicine mixing hopper, the driving assembly and the water inlet pipe are arranged, a flocculating agent and water are mixed in advance through the medicine mixing hopper, then the flocculating agent is put into the tank body through the medicine spreading and stirring assembly, and the driving motor drives the medicine spreading and stirring assembly to rotate in the process; and the mixed medicament and sewage are stirred, so that the flocculation speed is further increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially relates to a sedimentation tank for sewage treatment. BACKGROUND

[0002] There are usually various particulate matters and suspended matters in sewage, and the existing treatment method is static method, that is, using a sedimentation tank for sedimentation, the sedimentation tank is a device for removing suspended matters in water by sedimentation, and is an important step in sewage treatment, and has the advantages of simple structure, good sedimentation effect, stable working performance and the like.

[0003] During sewage treatment and sedimentation, flocculants need to be put into the sewage, and the current putting method is to directly put the specified amount of flocculants into the sedimentation tank after weighing, but the putting position is concentrated, which leads to slow dissolution of the flocculants in the sewage, thereby affecting the rapid and sufficient reaction of the flocculants with the sewage, and further affecting the sewage treatment efficiency. Secondly, when the settled sludge is discharged after sedimentation, a large amount of sewage is mixed in the sludge. Therefore, in view of the above-mentioned shortcomings, the utility model provides a sedimentation tank for sewage treatment. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a sedimentation tank for sewage treatment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sedimentation tank for sewage treatment, comprising a tank body, the bottom wall of the tank body is inclined on both sides, a collecting groove is fixedly connected to the bottom end of the tank body, a top plate is fixed to the top of the tank body, a medicine spraying and stirring assembly is connected through the middle of the top plate, a medicine mixing hopper is fixedly installed on the upper surface of the top plate above the medicine spraying and stirring assembly, a medicine feeding pipe is fixedly connected to the bottom end of the medicine mixing hopper and communicates with the medicine spraying and stirring assembly, a driving assembly for driving the medicine spraying and stirring assembly to rotate is fixedly installed on the upper surface of the top plate, a water inlet pipe is fixed to the top end of the side wall of the tank body, and a pollution discharge assembly is fixed to the inner side wall of the tank body away from the water inlet pipe.

[0006] Further, the bottom wall of the collecting groove is inclined to the side of the pollution discharge assembly.

[0007] Further, the medicine spraying and stirring assembly comprises a vertical shaft penetrating through the top plate and rotatably connected to the top plate through a bearing, and a stirring blade is fixedly connected to the bottom end of the vertical shaft.

[0008] Further, the top end of the vertical shaft is designed as hollow, a horizontal pipe is fixedly connected to the bottom of the hollow position of the vertical shaft, a plurality of medicine spraying holes are formed in the lower surface of the horizontal pipe, the medicine feeding pipe is sleeved on the surface of the vertical shaft and is sealingly rotatably connected to the vertical shaft, and a valve is fixedly connected to the middle of the medicine feeding pipe.

[0009] Further, the driving assembly comprises a first motor fixed to the top surface of the top plate and a driven gear fixed to the top end surface of the vertical shaft, the bottom output end of the first motor is fixedly connected with a driving gear, and the driving gear is engaged with the driven gear.

[0010] Further, the pollution discharge assembly comprises a vertical pipe fixed to the inner side wall of the pool body, a screw conveyor is rotatably connected in the vertical pipe, a second motor is fixed to the top end of the vertical pipe, the output end of the second motor is fixedly connected with the central shaft of the screw conveyor, a pollution discharge pipe is fixedly connected to the top end side wall of the vertical pipe, and an opening is formed in the bottom end side wall of the vertical pipe.

[0011] The utility model discloses beneficial effect has:

[0012] 1. The utility model discloses when using, a sedimentation tank for sewage treatment is provided with pool body, collection groove, top plate, medicine scattering and stirring assembly, medicine mixing hopper, driving assembly and water inlet pipe, the flocculating agent and water are mixed in advance through the medicine mixing hopper, and then the medicine scattering and stirring assembly is put into the pool body, the process is driven by the driving motor to make the medicine scattering more uniform and the mixed medicament and sewage are stirred, and the flocculation speed is further improved.

[0013] 2. The utility model discloses when using, a sedimentation tank for sewage treatment is provided with pool body, collection groove and pollution discharge assembly, the collection groove is fixed at the bottom of the pool body, and the bottom wall both sides of the pool body are designed to be inclined, so that the flocculated pollutants enter the inside of the collection groove, and then the flocculation precipitate is directly discharged upwards through the pollution discharge assembly, and a large amount of sewage is reduced in the discharge. ACCURATE DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the specific implementation mode description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0015] Figure 1 The overall perspective view of the utility model;

[0016] Figure 2 The overall sectional view of the utility model;

[0017] Figure 3 The overall sectional view of the utility model; Figure 2 The enlarged view of A in the utility model;

[0018] Figure 4 The enlarged view of B in the utility model. Figure 2

[0019] The following are the symbols of the drawings: ​

[0020] 1. Tank body; 2. Collection tank; 3. Top plate; 4. Sprinkling and stirring assembly; 41. Vertical shaft; 42. Stirring blade; 43. Horizontal pipe; 44. Sprinkling hole; 5. Mixing hopper; 51. Dropping pipe; 52. Valve; 6. Drive assembly; 61. First motor; 62. Driven gear; 63. Driving gear; 7. Water inlet pipe; 8. Sewage discharge assembly; 81. Vertical pipe; 82. Auger; 83. Second motor; 84. Sewage discharge pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1-4 As shown, it relates to a sedimentation tank for sewage treatment, including a tank body 1, both sides of the bottom wall of the tank body 1 are inclined, and the bottom end of the tank body 1 is fixedly connected to a collecting trough 2, a top plate 3 is fixed on the top of the tank body 1, and a medicine spreading and stirring component 4 is connected through the middle of the top plate 3, a medicine mixing hopper 5 is fixedly installed on the upper surface of the top plate 3 and above the medicine spreading and stirring component 4, a medicine mixing hopper 5 is fixedly connected to the bottom end of the medicine mixing hopper 5 is fixedly connected to a medicine dropping pipe 51, and the bottom end of the medicine dropping pipe 51 is connected to the medicine spreading and stirring component 4, a driving component 6 for driving the medicine spreading and stirring component 4 to rotate is fixedly installed on the upper surface of the top plate 3, a water inlet pipe 7 is fixed to the top end of the side wall of the tank body 1, and a sewage discharge component 8 is fixed to the inner wall of the tank body 1 and on the side away from the water inlet pipe 7.

[0023] The bottom wall of the collecting tank 2 is inclined toward the sewage discharge assembly 8 .

[0024] Thereby, the flocculants settled inside the collecting tank 2 can flow along the bottom wall of the collecting tank 2 toward the side of the sewage discharge component 8, making it easier for the flocculants to be discharged through the sewage discharge component 8.

[0025] The medicine spreading and stirring assembly 4 includes a vertical shaft 41 that passes through the top plate 3 and is rotatably connected to the top plate 3 via a bearing. A stirring blade 42 is fixedly connected to the bottom end of the vertical shaft 41.

[0026] The vertical shaft 41 drives the stirring blades 42 at the bottom to rotate, thereby stirring the sewage and flocculant and increasing the reaction speed.

[0027] The top of the vertical shaft 41 is hollow, and a horizontal tube 43 is fixedly connected to the bottom of the hollow position of the vertical shaft 41. A plurality of medicine-spreading holes 44 are provided on the lower surface of the horizontal tube 43. A medicine-dropping pipe 51 is sleeved on the surface of the vertical shaft 41 and is sealed and rotatably connected to the vertical shaft 41. A valve 52 is fixedly connected to the middle of the medicine-dropping pipe 51.

[0028] When the valve 52 is opened, the liquid medicine in the medicine mixing bucket 5 can enter the horizontal pipe 43 through the medicine feeding pipe 51, and finally be sprayed out from the spraying hole 44.

[0029] The driving assembly 6 comprises a first motor 61 fixed to the upper surface of the top plate 3 and a driven gear 62 fixed to the top end surface of the vertical shaft 41.

[0030] The first motor 61 can drive the vertical shaft 41 to rotate under the meshing transmission of the driving gear 63 and the driven gear 62.

[0031] The pollution discharge assembly 8 comprises a vertical pipe 81 fixed to the inner side wall of the pool body 1, a screw 82 rotatably connected in the vertical pipe 81, a second motor 83 fixed to the top end of the vertical pipe 81, and a pollution discharge pipe 84 fixed to the top end side wall of the vertical pipe 81.

[0032] The second motor 83 drives the screw 82 to rotate in the vertical pipe 81, so that the flocculating material at the bottom of the collecting groove 2 is collected into the vertical pipe 81, and then rises along the vertical pipe 81 and is finally discharged from the pollution discharge pipe 84.

[0033] Working principle: first, the sewage is injected into the pool body 1 through the water inlet pipe 7, and in this process, the flocculating agent and water are added into the medicine mixing bucket 5 to make the flocculating agent dissolve in advance; when the pool body 1 is filled with sewage, the valve 52 is opened to make the flocculating agent in the medicine mixing bucket 5 enter the horizontal pipe 43 through the medicine feeding pipe 51, and finally be sprayed out from the spraying hole 44; in this process, the first motor 61 is started to drive the horizontal pipe 43 and the stirring blade 42 to rotate, so that the flocculating agent can be uniformly sprayed out, and then the stirring blade 42 is used to stir the sewage and the flocculating agent to accelerate the reaction of the flocculating agent and the sewage; after the reaction is completed, the flocculating material is settled in the collecting groove 2, and finally the second motor 83 is started to drive the screw 82 to rotate, so that the flocculating material is collected into the vertical pipe 81 and discharged from the pollution discharge pipe 84, and finally the water in the pool body 1 is pumped out through the sewage pump.

[0034] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A sedimentation tank for sewage treatment comprising a tank body (1), characterized in that: The both sides of the bottom wall of the pool body (1) are inclined, and the bottom end of the pool body (1) is fixedly connected with a collecting groove (2), the top of the pool body (1) is fixedly connected with a top plate (3), the middle of the top plate (3) is connected with a pesticide spraying and stirring assembly (4), the upper surface of the top plate (3) and above the pesticide spraying and stirring assembly (4) is fixedly connected with a pesticide mixing hopper (5), the bottom end of the pesticide mixing hopper (5) is fixedly connected with a pesticide feeding pipe (51), and the bottom end of the pesticide feeding pipe (51) is communicated with the pesticide spraying and stirring assembly (4), the upper surface of the top plate (3) is fixedly connected with a driving assembly (6) for driving the rotation of the pesticide spraying and stirring assembly (4), and the top end of the side wall of the pool body (1) is fixedly connected with a water inlet pipe (7), and the inner side wall of the pool body (1) and away from the water inlet pipe (7) is fixedly connected with a sewage discharge assembly (8).

2. The sedimentation tank for sewage treatment according to claim 1, characterized in that: The bottom wall of the collecting groove (2) is inclined to the side of the sewage discharge assembly (8).

3. The sedimentation tank for sewage treatment according to claim 1, characterized in that: The pesticide spraying and stirring assembly (4) comprises a vertical shaft (41) penetrating the top plate (3) and rotatably connected with the top plate (3) through a bearing, and the bottom end of the vertical shaft (41) is fixedly connected with a stirring blade (42).

4. The sedimentation tank for sewage treatment according to claim 3, characterized in that: The top end of the vertical shaft (41) is hollow, and the bottom of the hollow position of the vertical shaft (41) is fixedly connected with a horizontal pipe (43), the lower surface of the horizontal pipe (43) is provided with a plurality of pesticide spraying holes (44), the pesticide feeding pipe (51) is sleeved on the surface of the vertical shaft (41) and is sealingly rotatably connected with the vertical shaft (41), and the middle of the pesticide feeding pipe (51) is fixedly connected with a valve (52).

5. The sedimentation tank for sewage treatment according to claim 3, characterized in that: The driving assembly (6) comprises a first motor (61) fixed to the upper surface of the top plate (3) and a driven gear (62) fixed to the top surface of the vertical shaft (41), the bottom output end of the first motor (61) is fixedly connected with a driving gear (63), and the driving gear (63) is engaged with the driven gear (62).

6. The sedimentation tank for sewage treatment according to claim 1, characterized in that: The sewage discharge assembly (8) comprises a vertical pipe (81) fixed to the inner side wall of the pool body (1), the vertical pipe (81) is rotatably connected with an auger (82) inside, and the top end of the vertical pipe (81) is fixedly connected with a second motor (83), the output end of the second motor (83) is fixedly connected with the central shaft of the auger (82), the top end side wall of the vertical pipe (81) is fixedly connected with a sewage discharge pipe (84), and the bottom end side wall of the vertical pipe (81) is provided with an opening.

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