Flocculating agent feeding device for sewage treatment

Abstract

The invention discloses a flocculating agent feeding device for sewage treatment, and relates to the technical field of sewage treatment.The flocculating agent feeding device comprises a support and a feeding mechanism, the top of the support is rotationally connected with a circular base, the base is connected with two symmetrically-distributed fixing plates, the tops of the two fixing plates are connected with a hopper, and the hopper is connected with the feeding mechanism; in the flocculating agent throwing process, a crank connecting rod composed of a rotating disc and a connecting rod drives a rotating cylinder to periodically swing around a main shaft, the angle of a discharging pipe is continuously adjusted through swing, and therefore the throwing distance of the flocculating agent is changed; the throwing amount of the flocculating agent is increased along with the increase of the throwing distance, so that the amount of the flocculating agent in each area of the sewage pool is uniformly distributed, the situation that the flocculating agent is excessive in the central area of the sewage pool under the condition of same throwing times at long and short distances is avoided, and the waste of the flocculating agent is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a flocculant delivery device for sewage treatment. Background Art

[0002] Sewage refers to water that is polluted to a certain extent and is discharged from life and production. When treating this sewage, it is generally concentrated in a sewage pool, and then the flocculant for treating sewage is put into the sewage pool. The application of flocculants in sewage treatment is a very effective technology for removing suspended matter, colloids and particulate matter in sewage.

[0003] At present, flocculants are used by directly adding them into sewage treatment pools. For commonly used circular sewage pools, if the existing delivery device is used to deliver the flocculants at the edge or center of the sewage pool, the following problems will occur: Since the flocculant diffusion range is small, the flocculant dosage at the edge and center of the sewage pool will be too much, while the flocculant dosage in the undelivered area will be insufficient, which will easily lead to uneven distribution of flocculants in the sewage pool, which will not only cause waste of flocculants, but also affect the quality of sewage treatment. Therefore, a flocculant delivery device for sewage treatment is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a flocculant dosing device for sewage treatment.

[0005] A flocculant delivery device for sewage treatment comprises a bracket and a delivery mechanism, wherein the top of the bracket is rotatably connected to a circular base, the base is connected to two symmetrically distributed fixed plates, the tops of the two fixed plates are connected to a hopper, the delivery mechanism is installed below the hopper and is used to throw out the flocculant in the hopper, and the bracket is equipped with a rotating mechanism for driving the base to rotate in a circle to facilitate uniform delivery of the flocculant.

[0006] Preferably, the feeding mechanism includes a high-speed motor, which is mounted on one of the fixed plates, and a main shaft is rotatably connected between the two fixed plates, the output shaft of the high-speed motor is coaxially connected to the main shaft, a conical rotating barrel and a disc-shaped rotating barrel are coaxially rotatably connected to the main shaft, the rotating barrel is communicated with the rotating barrel and are rotatably connected to each other, a material guide pipe is connected to the bottom of the hopper, a feed port is provided at the top of the rotating barrel, the material guide pipe is connected to the feed port of the rotating barrel, the main shaft is located in the rotating barrel and the inner part of the rotating barrel is coaxially connected with a conical rotating block, and the tapered end of the rotating block faces one side of the rotating barrel, a plurality of partitions are connected to the rotating block in a circular array, a discharge port is provided on the outer cylinder wall of the rotating barrel, and a discharge pipe is connected at the discharge port.

[0007] Preferably, a disc-shaped material transport box is connected to the middle position of the material guide tube, and a rotating shaft is rotatably connected to the center position of the box walls on both sides of the material transport box. The rotating shaft is located in the material transport box and is coaxially connected to a disc-shaped material transport block. A plurality of material transport grooves are provided on the material transport block. A reduction gear box is installed on the fixed plate away from the high-speed motor. One end of the main shaft away from the high-speed motor is coaxially connected to the input shaft of the reduction gear box, and one end of the rotating shaft extends to the outside of the material transport box and is coaxially connected to the output shaft of the reduction gear box.

[0008] Preferably, the end of the rotating shaft away from the reduction gearbox extends to the outside of the material transport box and is coaxially connected with a turntable. The eccentric position of the turntable is rotatably connected to a connecting rod via a pin. The end of the connecting rod away from the turntable is rotatably connected to the eccentric position of the outer wall of the rotating cylinder via a pin.

[0009] Preferably, the rotating mechanism includes a reduction motor, which is installed at an eccentric position of the base. A gear ring is installed on the bracket with the center of the base as the axis. The output shaft of the reduction motor passes through the base and is coaxially connected with a gear, and the gear is meshed with the gear ring.

[0010] Preferably, the multiple material transport grooves on the material transport block are all distributed on the same side of the material transport block, and the multiple material transport grooves have different sizes and are arranged in a ring from small to large.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. The present invention transports the flocculant in the hopper to the rotating barrel through the transport trough on the transport block. Under the push of the high-speed rotating rotating block and the partition, this part of the flocculant will be centrifuged and guided along the inclined inner wall of the rotating barrel to move into the rotating barrel. After being pushed by the high-speed partition, it is thrown out from the discharge pipe and falls into the sewage pool. At the same time, the reduction motor will drive the base together with the feeding mechanism to rotate at a low speed, so that the feeding device can achieve 360° feeding of flocculant into the sewage pool, ensuring that the feeding of flocculant covers the entire sewage pool.

[0013] 2. In the process of adding flocculants, the crank connecting rod composed of a turntable and a connecting rod drives the rotating cylinder to swing periodically around the main axis, and the angle of the discharge pipe is continuously adjusted by the swinging, so as to change the throwing distance of the flocculant, and increase the throwing amount of the flocculant as the throwing distance increases, so that the flocculant dosage in each area of ​​the sewage pool is evenly distributed, avoiding the situation of excessive flocculant in the central area of ​​the sewage pool with the same throwing number at long and short distances, and effectively preventing the waste of flocculants. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 It is a schematic structural diagram of the support part in the present invention.

[0016] Figure 3 It is a structural schematic diagram of the feeding mechanism in the present invention.

[0017] Figure 4 It is a structural schematic diagram of the feeding mechanism of the present invention from another angle.

[0018] Figure 5 It is a structural cross-sectional view of the transfer barrel and the rotating barrel in the present invention.

[0019] Figure 6 It is a structural schematic diagram of the transfer material block of the present invention.

[0020] Figure 7 It is a structural cross-sectional view of the material guide pipe and the material transport box in the present invention.

[0021] Figure 8 It is a front view of the material transport block in the present invention.

[0022] In the figure: 1 bracket, 11 base, 12 fixed plate, 2 feeding mechanism, 21 hopper, 22 material guide pipe, 23 rotating barrel, 231 feeding port, 24 main shaft, 241 rotating block, 242 partition, 25 rotating barrel, 251 discharging pipe, 26 high-speed motor, 27 reduction box, 271 rotating shaft, 28 material transport box, 281 material transport block, 282 material transport trough, 29 turntable, 291 connecting rod, 3 rotating mechanism, 31 reduction motor, 32 gear, 33 gear ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] Reference Figure 1-8 As shown, a flocculant delivery device for sewage treatment includes a bracket 1 and a feeding mechanism 2, the top of the bracket 1 is rotatably connected to a circular base 11, two symmetrically distributed fixed plates 12 are connected to the base 11, and the tops of the two fixed plates 12 are connected to a hopper 21, the feeding mechanism 2 is installed below the hopper 21 and is used to throw out the flocculant in the hopper 21, and a rotating mechanism 3 is installed on the bracket 1 to drive the base 11 to rotate in a circle to facilitate the uniform delivery of the flocculant.

[0025] In this embodiment, the feeding mechanism 2 includes a high-speed motor 26, which is installed on one of the fixed plates 12. A main shaft 24 is rotatably connected between the two fixed plates 12. The output shaft of the high-speed motor 26 is coaxially connected to the main shaft 24. A truncated cone-shaped rotating cylinder 23 and a disc-shaped rotating cylinder 25 are coaxially rotatably connected to the main shaft 24. The rotating cylinder 23 is connected to the rotating cylinder 25 and is rotatably connected to each other. The bottom of the hopper 21 is connected to a material guide pipe 22. A feed port 231 is provided at the top of the rotating barrel 23, and the guide tube 22 is connected to the feed port 231 of the rotating barrel 23. The main shaft 24 is located in the rotating barrel 23 and is coaxially connected to a conical rotating block 241 inside the rotating barrel 25, and the conical end of the rotating block 241 faces one side of the rotating barrel 23. A plurality of partitions 242 are connected to the rotating block 241 in a circular array. A discharge port is provided on the outer wall of the rotating barrel 25, and a discharge pipe 251 is connected to the discharge port.

[0026] In this embodiment, a disc-shaped material transport box 28 is connected to the middle position of the material guide tube 22, and a rotating shaft 271 is rotatably connected to the center position of the box walls on both sides of the material transport box 28. The rotating shaft 271 is located in the material transport box 28 and is coaxially connected to a disc-shaped material transport block 281. A plurality of material transport grooves 282 are provided on the material transport block 281. A reduction box 27 is installed on the fixed plate 12 away from the side of the high-speed motor 26. The end of the main shaft 24 away from the high-speed motor 26 is coaxially connected to the input shaft of the reduction box 27, and one end of the rotating shaft 271 extends to the outside of the material transport box 28 and is coaxially connected to the output shaft of the reduction box 27.

[0027] In this embodiment, the end of the rotating shaft 271 away from the reduction gear box 27 extends to the outside of the material transport box 28 and is coaxially connected with a turntable 29. The eccentric position of the turntable 29 is rotatably connected to a connecting rod 291 through a pin shaft. The end of the connecting rod 291 away from the turntable 29 is rotatably connected to the eccentric position of the outer wall of the rotating cylinder 25 through a pin shaft. Since the turntable 29 rotates in the same period as the material transport block 281, there are two stages during the swinging of the rotating cylinder 25. The first is the lifting stage of the discharge pipe 251. At this time, the material transport trough 282 on the material transport block 281 is filled with flocculant and pours flocculant into the rotating cylinder 23. At this stage, flocculant is thrown out of the discharge pipe 251; the second is the descending stage of the discharge pipe 251. At this time, the material transport trough 282 on the material transport block 281 has completed the material transport and is in an empty state and turns to the hopper 21 to prepare for material. At this stage, no flocculant is thrown out of the discharge pipe 251.

[0028] In this embodiment, the rotating mechanism 3 includes a reduction motor 31, which is installed at an eccentric position of the base 11. A ring gear 33 is installed on the bracket 1 with the center of the base 11 as the axis. The output shaft of the reduction motor 31 passes through the base 11 and is coaxially connected with a gear 32. The gear 32 is meshed with the ring gear 33. The reduction motor 31 drives the base 11 to rotate at a low speed through the meshing of the gear 32 and the ring gear 33, thereby changing the throwing direction of the flocculant.

[0029] In this embodiment, Figure 8 As shown, the multiple material transport grooves 282 on the material transport block 281 are all distributed on the same side of the material transport block 281, and the material transport grooves 282 are only distributed in a semicircular area on one side of the material transport block 281. The multiple material transport grooves 282 have different sizes and are arranged in a ring from small to large.

[0030] The working process and principle of the present invention are as follows:

[0031] When in use, the bracket 1 is installed at the center of the circular sewage pool, and the hopper 21 is filled with solid flocculants. Then the high-speed motor 26 and the reduction motor 31 are turned on. The high-speed motor 26 will drive the main shaft 24 to rotate, so that the transfer block 241 in the transfer barrel 23 rotates at a high speed. The high-speed power on the main shaft 24 is reduced in speed by the reduction box 27 and then outputs a low speed to drive the rotating shaft 271 to rotate. The rotating shaft 271 drives the material transport block 281 to rotate. During the rotation of the material transport block 281, the flocculants in the hopper 21 are transported into the material transport trough 282. It is quantitatively transported to the rotating cylinder 23. Under the push of the high-speed rotating rotating block 241 and the partition 242, this part of the flocculant will be centrifuged and guided along the inclined inner wall of the rotating cylinder 23 to move into the rotating cylinder 25. After being pushed by the high-speed partition 242, it is thrown out from the discharge pipe 251 and falls into the sewage pool. At the same time, the reduction motor 31 will drive the base 11 together with the feeding mechanism 2 to rotate at a low speed, so that the feeding device can achieve 360° feeding of flocculant into the sewage pool, ensuring that the feeding of flocculant covers the entire sewage pool.

[0032] During the flocculant delivery process, the crank connecting rod composed of the rotating disk 29 and the connecting rod 291 will drive the rotating cylinder 25 to swing periodically around the main shaft 24, and the angle of the discharge pipe 251 is continuously adjusted by the swing, so as to change the throwing distance of the flocculant. Since the rotating disk 29 and the material transport block 281 rotate in the same period, Figure 4 and Figure 7As shown in the figure, when the smallest-sized transport trough 282 in the transport block 281 transports the flocculant into the rotating drum 23, the discharge pipe 251 on the rotating drum 25 is at the lowest point, and the smallest amount of flocculant will be thrown into the circular area in the center of the sewage pool. As the transport block 281 rotates, when the larger-sized transport trough 282 transports the flocculant into the rotating drum 23, the outlet of the discharge pipe 251 is driven by the turntable 29 to lift upward, so that the larger-sized flocculant is thrown into the circular area in the center of the sewage pool. As the throwing distance increases, the flocculant will fall in the annular area outside the center of the sewage pool. Similarly, the largest amount of flocculant will be thrown in the outermost ring area of ​​the sewage pool. This not only achieves full coverage of the flocculant delivery in the entire circular sewage pool, but also increases the amount of flocculant thrown as the throwing distance increases, so that the flocculant dosage in each area of ​​the sewage pool is evenly distributed, avoiding the situation of excessive flocculant in the central area of ​​the sewage pool with the same number of throwing times at long and short distances, and effectively preventing the waste of flocculant.

[0033] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A flocculant delivery device for sewage treatment, characterized in that: The invention comprises a support (1) and a feeding mechanism (2), wherein the top of the support (1) is rotatably connected to a circular base (11), the base (11) is connected to two symmetrically distributed fixing plates (12), the tops of the two fixing plates (12) are connected to a hopper (21), the feeding mechanism (2) is installed below the hopper (21) and is used to throw out the flocculant in the hopper (21), and the support (1) is installed with a rotating mechanism (3) for driving the base (11) to rotate in a circle to facilitate the uniform feeding of the flocculant.

2. The flocculant delivery device for sewage treatment according to claim 1, characterized in that: The feeding mechanism (2) comprises a high-speed motor (26), the high-speed motor (26) is mounted on one of the fixed plates (12), a main shaft (24) is rotatably connected between the two fixed plates (12), the output shaft of the high-speed motor (26) is coaxially connected to the main shaft (24), a truncated cone-shaped rotating cylinder (23) and a disc-shaped rotating cylinder (25) are coaxially rotatably connected to the main shaft (24), the rotating cylinder (23) and the rotating cylinder (25) are communicated and rotatably connected to each other, a material guide pipe (22) is connected to the bottom of the hopper (21), and the rotating cylinder (23) is connected to the rotating cylinder (25). A feed port (231) is provided at the top of the rotating cylinder (23); the guide tube (22) is connected to the feed port (231) of the rotating cylinder (23); the main shaft (24) is located in the rotating cylinder (23) and is coaxially connected with a conical rotating block (241) inside the rotating cylinder (25), and the conical end of the rotating block (241) faces one side of the rotating cylinder (23); a plurality of partitions (242) are connected to the rotating block (241) in a circular array; a discharge port is provided on the outer cylinder wall of the rotating cylinder (25), and a discharge pipe (251) is connected to the discharge port.

3. The flocculant delivery device for sewage treatment according to claim 2, characterized in that: A disc-shaped material transport box (28) is connected to the middle position of the material guide tube (22), and a rotating shaft (271) is rotatably connected to the center positions of the box walls on both sides of the material transport box (28). The rotating shaft (271) is located in the material transport box (28) and is coaxially connected to a disc-shaped material transport block (281). The material transport block (281) is provided with a plurality of material transport grooves (282). A reduction box (27) is installed on the fixed plate (12) at a side away from the high-speed motor (26), and one end of the main shaft (24) away from the high-speed motor (26) is coaxially connected to the input shaft of the reduction box (27), and one end of the rotating shaft (271) extends to the outside of the material transport box (28) and is coaxially connected to the output shaft of the reduction box (27).

4. The flocculant delivery device for sewage treatment according to claim 3, characterized in that: One end of the rotating shaft (271) away from the reduction box (27) extends to the outside of the material transport box (28) and is coaxially connected to a rotating disk (29); an eccentric position of the rotating disk (29) is rotatably connected to a connecting rod (291) via a pin; and one end of the connecting rod (291) away from the rotating disk (29) is rotatably connected to an eccentric position of the outer wall of the rotating cylinder (25) via a pin.

5. The flocculant delivery device for sewage treatment according to claim 1, characterized in that: The rotating mechanism (3) comprises a reduction motor (31), the reduction motor (31) being mounted at an eccentric position of the base (11), a gear ring (33) being mounted on the bracket (1) with the center of the base (11) as the axis, an output shaft of the reduction motor (31) passing through the base (11) and being coaxially connected with a gear (32), the gear (32) being meshed with the gear ring (33).

6. The flocculant delivery device for sewage treatment according to claim 3, characterized in that: The multiple material transport grooves (282) on the material transport block (281) are all distributed on the same side of the material transport block (281), and the multiple material transport grooves (282) have different sizes and are arranged in a ring-like shape from small to large.

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