Flocculation reaction precipitation device

Abstract

The utility model provides a flocculation reaction precipitation device, which belongs to the technical field of sewage treatment equipment, and adopts the technical scheme that the flocculation reaction precipitation device comprises a reaction tank, the reaction tank comprises a flocculation bin and a sewage collection conical hopper, the sewage collection conical hopper is positioned below the flocculation bin, and the top opening end of the sewage collection conical hopper is seamlessly and fixedly connected with the bottom of the flocculation bin; a water outlet pipe is communicated with the upper side wall of the flocculation bin, a water inlet pipe is communicated with the upper side wall of the dirt collecting conical hopper, a blow-off pipe is communicated with the lower side wall of the dirt collecting conical hopper, and an electric oscillator is fixed to the outer side wall of the dirt collecting conical hopper and located above the blow-off pipe. The flocculation reaction precipitation device has the beneficial effects that flocculent precipitates are effectively prevented from being attached to the bottom of the reaction tank, and smooth discharge of the flocculent precipitates is ensured, so that the operation efficiency and the cleaning effect of the flocculation reaction precipitation device are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage treatment equipment, specifically relating to a flocculation reaction sedimentation device. Background Technology

[0002] In wastewater treatment, flocculation is a crucial step in removing suspended solids, colloids, and some pollutants. By adding coagulants to wastewater, their charge neutralization and adsorption bridging effects cause tiny particles to aggregate into larger flocs, facilitating subsequent sedimentation and separation. This effectively reduces wastewater turbidity, improves water quality, and lays the foundation for further advanced treatment or achieving discharge standards.

[0003] Currently, common flocculation sedimentation devices mainly consist of a reaction tank. The bottom and top of the reaction tank are connected to an inlet pipe and an outlet pipe, respectively, and a drain pipe is also installed at the bottom. During operation, the pre-mixed wastewater and coagulant enter the reaction tank through the inlet pipe. Inside the tank, the mixture reacts for a certain period, causing pollutants in the wastewater to undergo a flocculation reaction with the coagulant, forming flocculent precipitates. After the reaction is complete, the flocculent precipitates settle at the bottom of the reaction tank due to gravity. The flocculent precipitates can be discharged by opening the drain pipe, while the flocculated wastewater is discharged from the outlet pipe for subsequent treatment stages.

[0004] However, in practical applications, flocculent precipitates easily adhere to the bottom of the reaction tank, making it difficult to discharge smoothly from the drain pipe. This reduces the effective reaction space of the wastewater within the tank, thus affecting the flocculation effect and causing unstable effluent quality. Furthermore, long-term accumulation of flocculent precipitates can lead to putrefaction and deterioration, producing odors and harmful gases, threatening the surrounding environment and the health of operators, while also increasing the risk of secondary pollution. Utility Model Content

[0005] This invention addresses the problem that flocculent precipitates easily adhere to the bottom of the reaction tank and are difficult to discharge from the drain pipe. It provides a flocculation reaction sedimentation device that can effectively prevent flocculent precipitates from adhering to the bottom of the reaction tank and ensure that the flocculent precipitates can be smoothly discharged from the drain pipe.

[0006] To solve the above problems, the technical solution adopted by this utility model is a flocculation reaction sedimentation device, including a reaction tank, which includes a flocculation chamber and a sludge collection cone. The sludge collection cone is located below the flocculation chamber, and the top open end of the sludge collection cone is seamlessly fixedly connected to the bottom of the flocculation chamber. The upper side wall of the flocculation chamber is connected to an outlet pipe, the upper side wall of the sludge collection cone is connected to an inlet pipe, the lower side wall of the sludge collection cone is connected to a drain pipe, and an electric vibrator is fixed to the outer side wall of the sludge collection cone, which is located above the drain pipe.

[0007] In this technical solution, the pre-mixed wastewater and coagulant flow into the flocculation chamber through the inlet pipe. Within the flocculation chamber, after sufficient reaction, pollutants in the wastewater undergo a flocculation reaction with the coagulant, forming flocculent precipitates. The reacted wastewater is discharged through the outlet pipe, while the flocculent precipitates adhere to the collection cone. At this point, an electric vibrator generates vibrations, causing the flocculent precipitates adhering to the inner wall of the collection cone to detach and ultimately be discharged through the drain pipe. Therefore, this device effectively prevents flocculent precipitates from adhering to the bottom of the reaction tank, ensuring smooth discharge of the precipitates and significantly improving the operating efficiency and cleaning effect of the flocculation reaction sedimentation device.

[0008] Furthermore, two electric vibrators are provided, symmetrically distributed along the transverse center plane of the sludge collection cone. This symmetrical distribution ensures uniform vibration across all parts of the sludge collection cone. Due to this symmetrical distribution, vibrational energy can be transmitted more evenly to different locations within the cone, preventing excessively strong or weak vibrations in certain areas. This allows the flocculent precipitates adhering to the inner wall of the cone to detach more evenly and thoroughly, improving the discharge efficiency of the flocculent precipitates.

[0009] Furthermore, a maintenance manhole is provided on the outer wall of the sludge collection cone, and the maintenance manhole and the sewage pipe are symmetrically distributed along the longitudinal center plane of the sludge collection cone. The symmetrical distribution design places the maintenance manhole and the sewage pipe in opposite positions, allowing maintenance personnel to enter the interior of the sludge collection cone through the maintenance manhole to conduct a comprehensive inspection, repair, and maintenance of components near the sewage pipe and other parts of the sludge collection cone.

[0010] Furthermore, the sludge collection cone is equipped with vertically arranged support legs. The tops of the support legs are fixedly connected to the outer wall of the sludge collection cone. There are four support legs, which are evenly distributed at equal angles around the axis of the sludge collection cone. The even distribution of the four support legs ensures that the weight of the sludge collection cone is evenly distributed, distributing the weight of the sludge collection cone and its internal materials evenly to the ground. This effectively prevents the sludge collection cone from tilting or shaking due to uneven force, ensuring that it maintains a stable upright position during operation.

[0011] Furthermore, a pad is installed between the support leg and the sludge collection cone. The top surface of the pad is fixedly connected to the outer wall of the sludge collection cone, and the bottom surface of the pad is fixedly connected to the top of the support leg. A base plate is fixed to the bottom of the support leg, and the base plate is horizontally arranged. The connection between the top surface of the pad and the outer wall of the sludge collection cone, and the connection between the bottom surface and the top of the support leg, increases the contact area between the sludge collection cone and the support leg. This helps to distribute the weight borne by the sludge collection cone more evenly to the support leg, reducing excessive local pressure and preventing deformation or damage to the outer wall of the sludge collection cone due to concentrated stress. The base plate is horizontally arranged at the bottom of the support leg, increasing the contact area between the support leg and the ground. This allows the upper load borne by the support leg to be evenly distributed on the ground, reducing the pressure on the ground and preventing ground settlement or damage due to excessive local pressure.

[0012] Furthermore, a high-pressure pipe is connected to the lower sidewall of the flocculation chamber. This high-pressure pipe is connected to the inlet end of the backwash pipe, which is annular and fixedly connected to the inner sidewall of the flocculation chamber. Several spray holes are installed on the backwash pipe. The annular backwash pipe is arranged along the inner sidewall of the flocculation chamber, allowing the spray holes to form a ring-shaped jet array around the sludge collection cone. This arrangement enables thorough cleaning of the entire circumferential sidewall of the sludge collection cone without any blind spots. The simultaneous spraying of water from multiple spray holes creates a superimposed impact force on the sidewall of the sludge collection cone, effectively stripping away stubbornly attached flocculent precipitates.

[0013] Furthermore, an observation cone cover is installed above the flocculation chamber, with its open bottom seamlessly fixed to the top of the flocculation chamber. This seamless connection effectively prevents external impurities and dust from entering the flocculation chamber, avoiding interference with the flocculation reaction and ensuring a clean and stable internal environment, which is beneficial for improving flocculation efficiency and water quality.

[0014] Furthermore, a protective cover is fixed to the top of the observation cone, and an exhaust observation hole is provided on the top of the protective cover. The exhaust observation hole can promptly discharge the gas generated in the flocculation chamber. During the flocculation reaction, gas may be generated. If it is not discharged in time, the gas accumulation may cause the pressure inside the chamber to rise, posing a safety hazard.

[0015] As can be seen from the above technical solution, the advantages of this utility model are as follows: In this technical solution, the pre-mixed liquid formed by wastewater and coagulant flows into the flocculation chamber through the inlet pipe. After sufficient reaction in the flocculation chamber, the pollutants and coagulant in the wastewater undergo flocculation reaction to form flocculent precipitates. The reacted wastewater is discharged from the outlet pipe, while the flocculent precipitates are deposited and adhered to the inner wall of the collection cone. At this time, the electric vibrator causes the flocculent precipitates adhering to the inner wall of the collection cone to fall off and be discharged from the drain pipe. Even after long-term use, flocculent precipitates may remain. The annular jet array formed by the spray holes sprays water around the collection cone to wash away the stubborn flocculent precipitates and finally discharge them from the drain pipe. In summary, this device effectively avoids flocculent precipitates adhering to the bottom of the reaction tank, ensuring the smooth discharge of flocculent precipitates, thereby significantly improving the operating efficiency and cleaning effect of the flocculation reaction sedimentation device. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0017] Figure 1 This is a schematic diagram of the main structure of a specific embodiment of the present utility model;

[0018] Figure 2 This is a bottom view of the structure of a specific embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the axonal structure of a specific embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the backwash tube in a specific embodiment of the present invention.

[0021] In the diagram: 1-Observation cone cover, 11-Protective cover, 12-Exhaust observation hole, 2-Flocculation chamber, 21-Water outlet pipe, 22-High pressure pipe, 3-Sludge collection cone, 31-Water inlet pipe, 32-Sludge discharge pipe, 33-Support leg, 34-Plate, 35-Base plate, 36-Support rod, 4-Maintenance manhole, 5-Electric vibrator, 6-Backwash pipe, 61-Spray hole. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0023] A flocculation reaction precipitation device, such as Figure 1 As shown, the system includes a reaction tank, which consists of three parts: an observation cone cover 1, a flocculation chamber 2, and a collection cone 3. The flocculation chamber 2 is located below the observation cone cover 1, and the collection cone 3 is located below the flocculation chamber 2. The observation cone cover 1 effectively prevents external impurities and dust from entering the flocculation chamber 2; the flocculation chamber 2 provides space for the flocculation reaction, where the mixture of wastewater and coagulant undergoes a full reaction, causing pollutants in the wastewater to flocculate with the coagulant, thus forming flocculent precipitates; the collection cone 3 collects the deposited flocculent precipitates and discharges them.

[0024] like Figure 3 As shown, in this specific embodiment, the observation cone cover 1 is a frustum-shaped structure with a hollow interior and a larger bottom than a smaller top. A protective cover 11 is provided on top of the observation cone cover 1. The bottom circumference diameter of the protective cover 11 is the same as the diameter of the open top end of the observation cone cover 1. The protective cover 11 is fixed to the top of the observation cone cover 1 by bolts. An exhaust observation hole 12 is provided on the top of the protective cover 11, and the exhaust observation hole 12 is interconnected with the interior of the observation cone cover 1.

[0025] In this specific embodiment, the flocculation chamber 2 is a hollow cylindrical shell with openings at the top and bottom. The top diameter of the flocculation chamber 2 is the same as the diameter of the bottom open end of the observation cone cover 1, and the bottom open end of the observation cone cover 1 is seamlessly fixedly connected to the top of the flocculation chamber 2. In this embodiment, the flocculation chamber 2 and the observation cone cover 1 are integrally machined. A water outlet pipe 21 is provided on the upper side wall of the flocculation chamber 2. One end of the water outlet pipe 21 communicates with the interior of the flocculation chamber 2, and the other end of the water outlet pipe 21 is connected to the next wastewater treatment process through a pipe. Figure 4 As shown, a high-pressure pipe 22 is installed on the lower side wall of the flocculation chamber 2. One end of the high-pressure pipe 22 is connected to a water pump through a pipe, and the other end of the high-pressure pipe 22 is located inside the flocculation chamber 2, and this end is connected to the water inlet of the backwash pipe 6. The backwash pipe 6 is designed as a ring and is fixed to the inner side wall of the flocculation chamber 2 by a clip. Several water spray holes 61 are provided on the backwash pipe 6. The several water spray holes 61 are evenly distributed at equal angles around the annular center line of the backwash pipe 6, and all the water spray holes face vertically downward.

[0026] In this specific embodiment, the sludge collection cone 3 is a hollow, inverted frustum shape, with an open top and a sealed bottom. The diameter of the open top of the sludge collection cone 3 is the same as the diameter of the bottom of the flocculation chamber 2, and the open top of the sludge collection cone 3 is seamlessly and fixedly connected to the bottom of the flocculation chamber 2. In this embodiment, the flocculation chamber 2 and the sludge collection cone 3 are integrally manufactured. An inlet pipe 31 is provided on the upper side wall of the sludge collection cone 3. One end of the inlet pipe 31 communicates with the interior of the sludge collection cone 3, and the other end of the inlet pipe 31 is connected to the previous wastewater treatment process via a pipe. The previous wastewater treatment process can fully mix the wastewater and coagulant and transport the mixture to the inlet pipe 31 via a pipe. This previous wastewater treatment process is implemented using existing equipment. A drain pipe 32 is provided on the lower side wall of the sludge collection cone 3. One end of the drain pipe 32 communicates with the interior of the sludge collection cone 3, and the other end of the drain pipe 32 is connected to the flocculent sediment treatment process via a pipe.

[0027] like Figure 2 As shown, a maintenance manhole 4 is provided on the outer wall of the sludge collection cone 3. The maintenance manhole 4 and the drain pipe 32 are symmetrically distributed along the longitudinal center plane of the sludge collection cone 3. The maintenance manhole 4 is locked with bolts. By unscrewing the bolts, the maintenance manhole 4 can be opened to inspect the reaction tank. An electric vibrator 5 is fixed to the outer wall of the sludge collection cone 3 with bolts. The electric vibrator 5 is located above the drain pipe 32. The electric vibrator 5 is existing equipment and can generate vibration to shake off the flocculent precipitates attached to the inner wall of the sludge collection cone 3. In this embodiment, two electric vibrators 5 are provided, and the two electric vibrators 5 are symmetrically distributed along the transverse center plane of the sludge collection cone 3.

[0028] The sludge collection cone 3 is equipped with four vertically arranged support legs 33, which are evenly distributed around the axis of the sludge collection cone 3. A pad 34 is provided between the support legs 33 and the sludge collection cone 3. The top surface of the pad 34 is welded to the outer wall of the sludge collection cone 3, and the bottom surface of the pad 34 is welded to the top of the support legs 33. A base plate 35 is welded to the bottom of the support legs 33, and the base plate 35 is horizontally arranged. A support rod 36 is provided on the support legs 33. One end of the support rod 36 is welded to the middle of the support leg 33, and the other end of the support rod 36 is welded to the outer wall of the sludge collection cone 3.

[0029] The specific usage process of this utility model is as follows: First, the mixture formed by pre-mixing sewage and coagulant flows into the flocculation chamber 2 through the inlet pipe 31. When the flocculation chamber 2 is full, the inlet pipe 31 is closed, and the pollutants in the sewage are allowed to react with the coagulant to form flocculent precipitates. During the reaction, the operator observes the reaction through the exhaust observation hole 12. After the reaction is completed, the outlet pipe 21 is opened to transport the upper sewage to the next process for continued sewage treatment. Then, the drain pipe 32 is opened and the electric vibrator 5 is started. The electric vibrator 5 generates vibration, causing the flocculent precipitates attached to the inner wall of the collection cone 3 to fall off and be discharged through the drain pipe 32. When flocculent precipitates remain after prolonged use, open the high-pressure pipe 22 and use a water pump to pump high-pressure water into the backwash pipe 6 through the high-pressure pipe 22. The high-pressure water then sprays out from the spray holes 61 on the backwash pipe 6. The annular spray array formed by the spray holes 61 sprays water around the sludge collection cone 3, which washes away the stubborn flocculent precipitates and finally discharges them from the drain pipe 32.

[0030] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: In this specific embodiment, the mixture formed by pre-mixing sewage and coagulant flows into the flocculation chamber through the inlet pipe. After sufficient reaction in the flocculation chamber, the pollutants in the sewage undergo flocculation reaction with the coagulant to form flocculent precipitates. The reacted sewage is discharged from the outlet pipe, while the flocculent precipitates are deposited and adhered to the inner wall of the collection cone. At this time, the electric vibrator causes the flocculent precipitates adhering to the inner wall of the collection cone to fall off and be discharged from the drain pipe. Even after long-term use, flocculent precipitates may remain. The annular jet array formed by the spray holes sprays water around the collection cone to wash away the stubborn flocculent precipitates and finally discharge them from the drain pipe. In summary, this device effectively avoids flocculent precipitates adhering to the bottom of the reaction tank, ensuring the smooth discharge of flocculent precipitates, thereby significantly improving the operating efficiency and cleaning effect of the flocculation reaction sedimentation device.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flocculation reaction sedimentation device, comprising a reaction tank, characterized in that, The reaction tank includes a flocculation chamber (2) and a sludge collection cone (3). The sludge collection cone (3) is located below the flocculation chamber (2), and the top open end of the sludge collection cone (3) is seamlessly fixed to the bottom of the flocculation chamber (2). The upper side wall of the flocculation chamber (2) is connected to an outlet pipe (21), the upper side wall of the sludge collection cone (3) is connected to an inlet pipe (31), the lower side wall of the sludge collection cone (3) is connected to a drain pipe (32), and an electric vibrator (5) is fixed to the outer side wall of the sludge collection cone (3). The electric vibrator (5) is located above the drain pipe (32).

2. The flocculation reaction sedimentation device according to claim 1, characterized in that, Two electric oscillators (5) are provided, and the two electric oscillators (5) are symmetrically distributed along the transverse center plane of the sludge collection cone (3).

3. The flocculation reaction sedimentation device according to claim 1, characterized in that, A maintenance manhole (4) is provided on the outer wall of the sludge collection cone (3). The maintenance manhole (4) and the sewage pipe (32) are symmetrically distributed along the longitudinal center plane of the sludge collection cone (3).

4. The flocculation reaction sedimentation device according to claim 1, characterized in that, The outside of the sludge collection cone (3) is provided with support legs (33). The support legs (33) are arranged vertically. The top of the support legs (33) is fixedly connected to the outer wall of the sludge collection cone (3). There are four support legs (33), and the four support legs (33) are evenly distributed at equal angles around the axis of the sludge collection cone (3).

5. The flocculation reaction sedimentation device according to claim 4, characterized in that, A pad (34) is provided between the support leg (33) and the sludge collection cone (3). The top surface of the pad (34) is fixedly connected to the outer wall of the sludge collection cone (3), and the bottom surface of the pad (34) is fixedly connected to the top of the support leg (33). A base plate (35) is fixedly provided at the bottom of the support leg (33). The base plate (35) is arranged horizontally.

6. The flocculation reaction sedimentation device according to claim 1, characterized in that, The lower side wall of the flocculation chamber (2) is connected to a high-pressure pipe (22), which is connected to the water inlet of the backwash pipe (6). The backwash pipe (6) is set as a ring and is fixedly connected to the inner side wall of the flocculation chamber (2). Several spray holes (61) are provided on the backwash pipe (6).

7. The flocculation reaction sedimentation device according to claim 1, characterized in that, An observation cone cover (1) is provided above the flocculation chamber (2), and the bottom open end of the observation cone cover (1) is seamlessly fixed to the top of the flocculation chamber (2).

8. The flocculation reaction sedimentation device according to claim 1, characterized in that, The top of the observation cone cover (1) is fixed with a protective cover (11), and the top of the protective cover (11) is provided with an exhaust observation hole (12).

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