CN215480003U

CN215480003U - Wear-resistant decanter

Info

Publication number: CN215480003U
Application number: CN202121775483.4U
Authority: CN
Inventors: 王红宾; 刘虹; 冯伟坚; 郑倩云
Original assignee: Guangzhou Science City Water Investment Group Co ltd
Current assignee: Guangzhou Science City Water Investment Group Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-11
Anticipated expiration: 2031-07-30

Abstract

A wear-resistant decanter for the treatment of domestic sewage; the utility model is provided with a support frame and a transmission screw, and the support frame is driven to rotate by driving the transmission screw to move, so that a decanting mechanism is driven to do lifting motion, the horizontal position of a decanting weir groove is adjusted, and the decanting is carried out. The water decanting mechanism can be prevented from being directly connected with the transmission screw rod, the gravity of the water decanting mechanism is prevented from completely acting on the transmission screw rod, the abrasion of the transmission screw rod is reduced, and the times of maintaining and replacing the transmission screw rod is reduced; meanwhile, the steel wire rope is arranged on the support frame, the side, far away from the support frame, of the steel wire rope is connected with the balancing weight, an upward oblique pulling force can be provided for the support frame, the gravity of the support frame is balanced, the influence of the gravity of the support frame on the transmission screw is reduced, the abrasion of the transmission screw is reduced, the service life of the transmission screw is prolonged, and the steel wire rope is suitable for domestic sewage treatment.

Description

Wear-resistant decanter

Technical Field

The utility model relates to the field of sewage treatment equipment, in particular to a wear-resistant decanter.

Background

The decanter, also known as decanter, is one of the most critical mechanical devices in the SBR process. The decanter is a device for periodically removing clear water adopted by SBR technology, and has the function of decanting the clear water from the surface of a static tank without stirring and precipitating to ensure the quality of the discharged water. The SBR process adopts intermittent reaction, water inlet, reaction, sedimentation and drainage are completed in the same tank, and a secondary sedimentation tank and sludge backflow equipment are not needed, so that the SBR process has the advantages of small occupied area, low investment, high efficiency, good effluent quality and the like; meanwhile, the plurality of SBR pools are connected, so that the system can have the continuity of the traditional sludge process to ensure continuous water inflow, has the intermittence of the typical SBR process, is suitable for the requirements of water quality, water quantity and large change, and is widely applied at home and abroad. However, most of the currently used water decanting devices adjust the position of the water decanting weir groove through the transmission screw and the connecting rod when in use, and due to the gravity influence of the water decanting device, the transmission screw is seriously worn, so the transmission screw needs to be maintained and replaced frequently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to make up for the defects of the prior art and provides a wear-resistant decanter to solve the problem that the transmission screw is seriously worn and needs to be maintained and replaced frequently under the influence of the gravity of a decanting mechanism because the decanting mechanism mostly adjusts the position of a decanting weir groove through the transmission screw and a connecting rod when the traditional decanter is used at present.

Specifically, the technical scheme of the utility model is as follows:

a wear-resistant decanter for the treatment of domestic sewage; the wear-resistant decanter comprises a mounting frame fixed on a cement steel pier, a driving device is arranged on the mounting frame, the driving device is connected with a transmission screw rod, the transmission screw rod is connected with a support frame, a sleeve is arranged in the support frame, the transmission screw rod is arranged in the sleeve, and an internal thread matched with the transmission screw rod is arranged in the sleeve; one side of the support frame is connected with a rotary support on the cement steel pier, the other side of the support frame is connected with a water decanting mechanism, the water decanting mechanism comprises a water collecting branch pipe, one end of the water collecting branch pipe is connected with a water decanting weir groove, and the other end of the water collecting branch pipe is connected with a water collecting main pipe; the support frame is provided with a steel wire rope, one side of the steel wire rope, which is far away from the support frame, is connected with a balancing weight for balancing the weight of the support frame and reducing the abrasion of the transmission screw rod caused by the gravity of the support frame to the transmission screw rod.

Furthermore, a stop block is arranged at the lower end of the transmission screw, and the stop block can prevent the transmission screw from moving beyond a downward limit, so that the phenomenon that the decanting weir trough completely falls into water to influence the quality of the discharged water or the decanting weir trough directly collides with the bottom of the tank to cause destructive damage is avoided.

Furthermore, the water decanting weir notch is connected with a floating barrel, the floating barrel can provide an upward buoyancy for the water decanting mechanism, the buoyancy and the gravity of the water decanting mechanism are offset, and the abrasion of the gravity of the water decanting mechanism on the transmission screw can be reduced.

Furthermore, a guide rod with an upper stroke and a lower stroke is connected between the decanting weir notch and the floating barrel, a water filling port and a water discharging port are arranged in the floating barrel, water is filled into the water filling port in the floating barrel to adjust the position of the floating barrel, the height of the overflow port of the decanting weir notch on the water surface is further adjusted, and the decanting speed is adjusted.

Furthermore, a filter screen is arranged in the decanting weir notch, sealing rubber is fixed at the edge of the filter screen, the sealing rubber can ensure that water in the tank body can only enter the decanting weir notch through the filter screen during decanting, and the filter screen can isolate floating slag on the water surface to ensure the water decanting quality.

Furthermore, a connecting flange is arranged between the water collecting main pipe and the water collecting branch pipe, the water collecting main pipe and the water collecting branch pipe are movably connected through the connecting flange, so that the water collecting main pipe and the water collecting branch pipe are convenient to install and disassemble, and the water collecting main pipe and the water collecting branch pipe are convenient to overhaul and maintain.

The water decanting device has the beneficial effects that the support frame and the transmission screw are arranged, the support frame is driven to rotate by driving the transmission screw to move, so that the water decanting mechanism is made to perform lifting motion, and the horizontal position of the water decanting weir groove is adjusted. The water decanting mechanism can be prevented from being directly connected with the transmission screw rod, the gravity of the water decanting mechanism is prevented from completely acting on the transmission screw rod, the abrasion of the transmission screw rod is reduced, and the times of maintaining and replacing the transmission screw rod is reduced; meanwhile, a steel wire rope is arranged on the support frame, and a balancing weight is connected to one side, far away from the support frame, of the steel wire rope, so that an upward oblique pulling force can be provided for the support frame, the gravity of the support frame is balanced, the influence of the gravity of the support frame on the transmission screw is reduced, the abrasion of the transmission screw is reduced, and the service life of the transmission screw is prolonged.

Drawings

Fig. 1 is a schematic view of a wear-resistant decanter according to a first embodiment.

In the figure: 1. the water collecting device comprises a cement steel pier, 2 parts of a mounting frame, 3 parts of a driving device, 4 parts of a transmission screw rod, 5 parts of a support frame, 6 parts of a rotary support, 7 parts of a water collecting branch pipe, 8 parts of a decanting weir groove, 9 parts of a water collecting main pipe, 10 parts of a steel wire rope, 11 parts of a balancing weight, 12 parts of a stop block, 13 parts of a buoy and 14 parts of a connecting flange.

Detailed Description

The embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the embodiment provides a wear-resistant decanter for treating domestic sewage; the wear-resistant decanter comprises a mounting frame 2 fixed on a cement steel pier 1, a driving device 3 is arranged on the mounting frame 2, the driving device 3 is connected with a transmission screw rod 4, the transmission screw rod 4 is connected with a support frame 5, a sleeve is arranged in the support frame 5, the transmission screw rod 4 is arranged in the sleeve, an internal thread matched with the transmission screw rod 4 is arranged in the sleeve, one side of the support frame 5 is connected with a rotary support 6 on the cement steel pier 1, the other side of the support frame is connected with a decanting mechanism, the decanting mechanism comprises a water collecting branch pipe 7, one end of the water collecting branch pipe 7 is connected with a decanting weir groove 8, and the other end of the water collecting branch pipe 7 is connected with a water collecting header pipe 9; the driving device drives the transmission screw rod 4 to move, so that one side of the support frame 5 connected with the rotary support 6 rotates along with the transmission screw rod 4, the side of the support frame 5 connected with the decanting mechanism is driven to move, and the decanting mechanism is further driven to move up and down.

In the movement process, the driving screw does not directly pull the decanting mechanism to do lifting movement, but indirectly drives the decanting mechanism to do lifting movement through the support frame 5, so that the driving screw 4 is prevented from directly bearing pressure caused by the gravity of the decanting mechanism, and the abrasion of the driving screw is reduced. The lower end of the transmission screw rod 4 is provided with a stop block 12, the stop block 12 can prevent the transmission screw rod 4 from moving beyond a downward limit, and the phenomenon that the water outlet quality is affected when the decanting weir notch 8 completely falls into water or the decanting weir notch 8 directly collides with the bottom of the tank to cause destructive damage is avoided. Moreover, a steel wire rope 10 is arranged on the support frame 5, a counterweight 11 is connected to one side, far away from the support frame 5, of the steel wire rope 10, the steel wire rope 10 is matched with the counterweight 11 for use, an upward oblique pulling force can be applied to the support frame 5, the pulling force can balance the gravity of the support frame 5, and abrasion of the gravity of the support frame 5 on the transmission screw rod 4 is reduced.

Preferably, a connecting flange 14 is arranged between the water collecting main pipe 9 and the water collecting branch pipe 7, the water collecting main pipe 9 and the water collecting branch pipe 7 are movably connected through the connecting flange 14, so that the installation and the disassembly are convenient, and the follow-up maintenance of the water collecting main pipe 9 and the water collecting branch pipe 7 is realized. The decanting weir notch 8 is connected with a buoy 13, the buoy 13 can provide an upward buoyancy for the decanting mechanism, the buoyancy is offset with the gravity of the decanting mechanism, and the abrasion of the gravity of the decanting mechanism on the transmission screw rod 4 can be reduced. A guide rod with an upper stroke and a lower stroke is connected between the decanting weir notch 8 and the floating barrel 13, a water filling port and a water discharging port are arranged in the floating barrel 13, water is filled into the water filling port in the floating barrel 13 to adjust the position of the floating barrel, the height of an overflow port of the decanting weir notch 8 on the water surface is further adjusted, and the decanting speed is adjusted. The inside of the decanting weir notch 8 is provided with a filter screen, the edge of the filter screen is fixed with sealing rubber, the sealing rubber can ensure that water in the tank body can only enter the decanting weir notch through the filter screen during decanting, and the filter screen can isolate floating slag on the water surface to ensure the water decanting quality.

When the wear-resistant decanter works, the driving device 3 drives the transmission screw 4 to move to drive the support frame 5 to move, one side of the support frame 5 connected with the rotary support 6 rotates along with the transmission screw 4 to drive one side of the support frame 5 connected with the decanting mechanism to move, and the decanting mechanism is enabled to be at a high liquid level and begins to decant water. The upper layer clear water flows into the main decanting water pipe 9 through the decanting weir trough 8 and the decanting branch pipe 7 under the pushing of the transmission screw 4, and then is discharged from the main decanting water pipe 9 to flow into a drainage channel to enter the next working procedure. After the water level in the tank is decanted from the highest water level to the lowest water level by the decanting mechanism, the drive screw 4 returns the decanting weir notch 8 to the initial highest water level, and the water is decanted circularly after the water level in the tank is supplemented.

The utility model is provided with the support frame and the transmission screw, and the support frame is driven to rotate by driving the transmission screw to move, so that the decanting mechanism does lifting motion, and the horizontal position of the decanting weir trough is adjusted. The water decanting mechanism can be prevented from being directly connected with the transmission screw rod, the gravity of the water decanting mechanism is prevented from completely acting on the transmission screw rod, the abrasion of the transmission screw rod is reduced, and the times of maintaining and replacing the transmission screw rod is reduced; meanwhile, the steel wire rope is arranged on the support frame, the side, far away from the support frame, of the steel wire rope is connected with the balancing weight, an upward oblique pulling force can be provided for the support frame, the gravity of the support frame is balanced, the influence of the gravity of the support frame on the transmission screw is reduced, the abrasion of the transmission screw is reduced, the service life of the transmission screw is prolonged, and the steel wire rope is suitable for domestic sewage treatment.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.

Claims

1. A wear-resistant decanter for the treatment of domestic sewage; the wear-resistant decanter is characterized by comprising a mounting frame fixed on a cement steel pier, wherein a driving device is arranged on the mounting frame, the driving device is connected with a transmission screw rod, the transmission screw rod is connected with a support frame, a sleeve is arranged in the support frame, the transmission screw rod is arranged in the sleeve, and an internal thread matched with the transmission screw rod is arranged in the sleeve; one side of the support frame is connected with a rotary support on the cement steel pier, the other side of the support frame is connected with a water decanting mechanism, the water decanting mechanism comprises a water collecting branch pipe, one end of the water collecting branch pipe is connected with a water decanting weir groove, and the other end of the water collecting branch pipe is connected with a water collecting main pipe; the supporting frame is provided with a steel wire rope, and one side of the steel wire rope, which is far away from the supporting frame, is connected with a balancing weight.

2. The wear-resistant decanter of claim 1 wherein said drive screw is provided with a stop at its lower end for preventing said drive screw from moving beyond a lower limit.

3. The wear-resistant decanter of claim 1 wherein said decanting weir notch is connected to a float for reducing wear of said drive screw due to gravity of the decanting mechanism.

4. The wear-resistant water decanter of claim 3, wherein a guide rod for up-and-down travel is connected between the decanting weir trough and the float, and a water filling port and a water draining port are arranged in the float.

5. The wear-resistant decanter of claim 1, wherein a screen is disposed inside the decanting weir trough, and a sealing rubber is fixed at the edge of the screen.

6. The wear-resistant decanter of claim 1, wherein a connecting flange is provided between said main water collecting pipe and said branch water collecting pipe, and said main water collecting pipe and said branch water collecting pipe are movably connected by said connecting flange.