An improved vertical flow sedimentation tank

Abstract

The utility model discloses an improved vertical flow sedimentation tank, including a tank body, the top of the tank body is fixedly connected with a water outlet trough, the bottom of the inner cavity of the tank body is provided with a mud bucket, the top of the tank body is connected with a vibrator through a support plate, a water inlet distribution cylinder is provided at the center of the inner cavity of the tank body, the bottom of the vibrator is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a vibration frame, and a mud suction pipe is provided through the bottom of the inner cavity of the tank body. The utility model uses high-frequency vibration to disturb the sludge area, on the one hand, it avoids the dead mud area at the bottom of the vertical flow sedimentation tank due to the lack of mechanical stirring, on the other hand, the vibration structure is simple and low in cost, the operating cost is low, and the operation is simple. Combined with the sludge intermediate storage tank, the concentrated sludge at the bottom of the sedimentation tank is quickly discharged in a short time, further reducing the formation of the dead mud area in the middle of the sedimentation tank, and ensuring the water discharge effect and sludge return.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and particularly relates to an improved vertical flow sedimentation tank. Background Art

[0002] Vertical flow sedimentation tanks have the advantages of small footprint and convenient sludge discharge, and are widely used in the field of water treatment, especially in smaller-scale township sewage treatment plants. Since the bottom sedimentation area of ​​the vertical flow sedimentation tank is bucket-shaped, mechanical stirring is usually not installed, and the sludge is only concentrated through the mud bucket. When the sludge is discharged through the bottom sludge discharge pipe, a sludge dead zone is easily formed, resulting in local sludge cannot be discharged in time and effectively, which can easily cause the dead sludge to float and affect the effluent quality. Especially in township sewage treatment plants, due to large fluctuations in the influent water quality and water volume and poor maintenance by on-site management personnel, vertical flow sedimentation tanks are difficult to play an ideal role. Utility Model Content

[0003] The utility model aims to provide an improved vertical flow sedimentation tank to solve the problems of the prior art in view of the deficiencies of the prior art.

[0004] The technical purpose of this utility model is achieved through the following technical solutions:

[0005] An improved vertical flow sedimentation tank comprises a tank body, wherein the top of the tank body is fixedly connected to a water outlet trough, a mud hopper is arranged at the bottom of the inner cavity of the tank body, the top of the tank body is connected to a vibrator through a support plate, a water inlet distribution cylinder is arranged at the center of the inner cavity of the tank body, the bottom of the vibrator is fixedly connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a vibration frame, a mud suction pipe is arranged through the bottom of the inner cavity of the tank body, one end of the mud suction pipe passes through the mud hopper and the tank body in sequence and is connected to a mud discharge control valve.

[0006] Preferably, the inclination angle of the inner wall slope of the mud bucket is not less than °, and the mud bucket is cast by concrete.

[0007] Preferably, the water inlet distribution cylinder is sleeved on the surface of the connecting rod, and the vibration frame is made of stainless steel.

[0008] Preferably, one end of the mud discharge control valve away from the mud suction pipe is connected to a mud discharge pipe, and one side of the mud discharge pipe away from the mud discharge control valve is connected to a sludge intermediate storage tank.

[0009] Preferably, a sludge return pump is fixedly connected to the bottom of the inner wall of the intermediate sludge storage tank, and a conveying pipe is connected to the top of the sludge return pump.

[0010] Preferably, a crushing mechanism is arranged between the mud suction pipe and the mud discharge control valve, and the crushing mechanism includes a crushing box, the left side of the top of the crushing box is connected to the mud suction pipe, the bottom of the crushing box is connected to a mud pump, the output end of the mud pump is connected to the mud discharge control valve through a pipeline, the top of the crushing box is connected to a motor by screws, the rotating shaft of the motor passes through the inner cavity of the crushing box and is fixedly connected to a crushing roller, and the surface of the crushing roller is fixedly connected to a first crushing blade.

[0011] Preferably, a second crushing blade is fixedly connected to the inner wall of the crushing box, and the first crushing blade and the second crushing blade are arranged alternately.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model provides an improved vertical flow sedimentation tank, which uses high-frequency vibration to disturb the sludge area. On the one hand, it avoids the dead mud area at the bottom of the vertical flow sedimentation tank due to the lack of mechanical stirring. On the other hand, the vibration structure is simple and low in cost, the operating cost is low, and the operation is simple. Combined with the sludge intermediate storage tank, the concentrated sludge at the bottom of the sedimentation tank can be quickly discharged in a short time, further reducing the formation of the dead mud area in the middle of the sedimentation tank, ensuring the water outlet effect and sludge return. Intermittent sludge discharge at the bottom of the sedimentation tank can minimize the influence of sludge return on the sedimentation effect, which is more conducive to the clarification effect of the effluent.

[0014] 2. The utility model passes through the tank body, the water inlet distribution cylinder and the water outlet trough. The activated sludge mixture of the biochemical tank enters the vertical flow sedimentation tank through the central water inlet distribution cylinder. Inside the sedimentation tank, the clarified clean water flows upward and flows out of the sedimentation tank through the water outlet trough, which is convenient for the preliminary precipitation of the sludge in the sewage. Through the vibrator, the connecting rod and the vibration frame, the vibration frame can be driven to operate and produce vibration, and then the sludge at the bottom of the inner cavity of the tank body is vibrated and stirred. The sludge can be vibrated, and the sludge can be effectively discharged and the sludge can be discharged thoroughly, avoiding the phenomenon that the sludge discharge is not thorough and affects the water quality.

[0015] 3. The utility model is capable of driving the crushing roller and the first crushing blade to rotate by arranging a crushing box, a motor, a crushing roller, a first crushing blade and a second crushing blade. The first crushing blade and the second crushing blade are arranged alternately to crush the sludge entering the crushing box, thereby preventing large pieces of sludge from entering the sludge discharge control valve and causing blockage, thereby facilitating the discharge of sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the improved vertical flow sedimentation tank structure.

[0017] Figure 2 This is a schematic diagram of the structure of a vibrator in one embodiment of the utility model.

[0018] Figure 3 This is a schematic diagram of a crushing mechanism in an embodiment of the utility model.

[0019] In the above drawings: 1. tank body; 2. water outlet trough; 3. mud bucket; 4. vibrator; 5. water inlet distribution cylinder; 6. connecting rod; 7. vibration frame; 8. mud suction pipe; 9. mud discharge control valve; 10. mud discharge pipe; 11. sludge intermediate storage tank; 12. sludge return pump; 13. conveying pipe; 14. crushing mechanism; 140. crushing box; 141. mud suction pump; 142. motor; 143. crushing roller; 144. first crushing blade; 145. second crushing blade. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] As a preferred embodiment of the present invention, Figure 1-Figure 2 As shown, this embodiment provides an improved vertical flow sedimentation tank, including a tank body 1, a water outlet trough 2 is fixedly connected to the top of the tank body 1, a mud hopper 3 is arranged at the bottom of the inner cavity of the tank body 1, a vibrator 4 is connected to the top of the tank body 1 through a support plate, a water inlet distribution cylinder 5 is arranged at the center of the inner cavity of the tank body 1, a connecting rod 6 is fixedly connected to the bottom of the vibrator 4, a vibration frame 7 is fixedly connected to the bottom of the connecting rod 6, a mud suction pipe 8 is penetrated at the bottom of the inner cavity of the tank body 1, one end of the mud suction pipe 8 passes through the mud hopper 3 and the tank body 1 in sequence and is connected to a mud discharge control valve 9.

[0022] When the above embodiment is implemented, the vibrator 4, the connecting rod 6 and the vibration frame 7 can drive the vibration frame 7 to run and produce vibration, thereby vibrating and stirring the sludge at the bottom of the inner cavity of the tank body 1, so that the sludge can be vibrated, and the sludge can be effectively discharged and the sludge can be discharged completely.

[0023] In some embodiments, Figure 1 As shown, the inclination angle of the inner wall slope of the mud bucket 3 is not less than 60°, the mud bucket 3 is made of concrete, the water inlet distribution cylinder 5 is sleeved on the surface of the connecting rod 6, the vibration frame 7 is made of stainless steel, and the end of the mud discharge control valve 9 away from the mud suction pipe 8 is connected to the mud discharge pipe 10, and the side of the mud discharge pipe 10 away from the mud discharge control valve 9 is connected to the sludge intermediate storage tank 11, and the bottom of the inner wall of the sludge intermediate storage tank 11 is fixedly connected to the sludge return pump 12, and the top of the sludge return pump 12 is connected to the conveying pipe 13.

[0024] This embodiment is capable of effectively discharging and transporting the sludge in the inner cavity of the tank body 1 by providing a sludge discharge control valve 9, a sludge suction pipe 8, a sludge pump 141 and a sludge return pump 12, so as to facilitate the rapid treatment of the sludge. The activated sludge flocs are gradually deposited and compressed in the mud hopper 3 area. The sludge discharge control valve 9 is opened through automatic control every hour, and the vibrator 4 is turned on at the same time. The sludge in the bottom sedimentation area is quickly discharged into the sludge intermediate storage tank 11, and the sludge is returned to the front end through the sludge return pump 12.

[0025] In some embodiments, Figure 3 As shown, a crushing mechanism 14 is arranged between the mud suction pipe 8 and the mud discharge control valve 9, and the crushing mechanism 14 includes a crushing box 140. The left side of the top of the crushing box 140 is connected to the mud suction pipe 8, and the bottom of the crushing box 140 is connected to a mud pump 141. The output end of the mud pump 141 is connected to the mud discharge control valve 9 through a pipeline. The top of the crushing box 140 is connected to a motor 142 by screws, and the rotating shaft of the motor 142 passes through the inner cavity of the crushing box 140 and is fixedly connected to a crushing roller 143. The surface of the crushing roller 143 is fixedly connected to a first crushing blade 144, and the inner wall of the crushing box 140 is fixedly connected to a second crushing blade 145. The first crushing blade 144 and the second crushing blade 145 are arranged alternately.

[0026] This embodiment mainly considers that during use, the sludge in the inner cavity of the tank body 1 is extracted by controlling the operation of the sludge pump 141, and the sludge enters the inner cavity of the crushing box 140 through the sludge suction pipe 8. The crushing roller 143 and the first crushing blade 144 are driven to rotate by controlling the operation of the motor 142. The sludge is crushed by the first crushing blade 144 and the second crushing blade 145. The crushed sludge passes through the sludge pump 141, the sludge discharge pipe 10 and the sludge intermediate storage tank 11 in turn. By controlling the operation of the sludge reflux pump 12, the sludge intermediate storage tank 11 is transported to the next process through the conveying pipe 13 for processing.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An improved vertical flow sedimentation tank, comprising a tank body (1), characterized in that: The top of the tank body (1) is fixedly connected to a water outlet trough (2), the bottom of the inner cavity of the tank body (1) is provided with a mud bucket (3), the top of the tank body (1) is connected to a vibrator (4) via a support plate, a water inlet distribution cylinder (5) is provided at the center of the inner cavity of the tank body (1), the bottom of the vibrator (4) is fixedly connected to a connecting rod (6), the bottom of the connecting rod (6) is fixedly connected to a vibration frame (7), a mud suction pipe (8) is provided through the bottom of the inner cavity of the tank body (1), one end of the mud suction pipe (8) passes through the mud bucket (3) and the tank body (1) in sequence and is connected to a mud discharge control valve (9).

2. The improved vertical flow sedimentation tank according to claim 1, characterized in that: The inclination angle of the inner wall slope of the mud bucket (3) is not less than 60°, and the mud bucket (3) is cast by concrete.

3. The improved vertical flow sedimentation tank according to claim 1, characterized in that: The water inlet distribution cylinder (5) is sleeved on the surface of the connecting rod (6), and the vibration frame (7) is made of stainless steel.

4. The improved vertical flow sedimentation tank according to claim 1, characterized in that: One end of the mud discharge control valve (9) away from the mud suction pipe (8) is connected to a mud discharge pipe (10), and one side of the mud discharge pipe (10) away from the mud discharge control valve (9) is connected to a sludge intermediate storage tank (11).

5. An improved vertical flow sedimentation tank according to claim 4, characterized in that: A sludge return pump (12) is fixedly connected to the bottom of the inner wall of the sludge intermediate storage tank (11), and a conveying pipe (13) is connected to the top of the sludge return pump (12).

6. An improved vertical flow sedimentation tank according to claim 4, characterized in that: A pulverizing mechanism (14) is provided between the mud suction pipe (8) and the mud discharge control valve (9), and the pulverizing mechanism (14) comprises a pulverizing box (140), the left side of the top of the pulverizing box (140) is connected to the mud suction pipe (8), the bottom of the pulverizing box (140) is connected to a mud pump (141), the output end of the mud pump (141) is connected to the mud discharge control valve (9) through a pipeline, the top of the pulverizing box (140) is connected to a motor (142) through screws, the rotating shaft of the motor (142) passes through the inner cavity of the pulverizing box (140) and is fixedly connected to a pulverizing roller (143), and the surface of the pulverizing roller (143) is fixedly connected to a first pulverizing blade (144).

7. An improved vertical flow sedimentation tank according to claim 6, characterized in that: A second crushing blade (145) is fixedly connected to the inner wall of the crushing box (140), and the first crushing blade (144) and the second crushing blade (145) are arranged in a staggered manner.

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