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Air flotation machine for domestic sewage treatment

A technology of domestic sewage and air flotation machine, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. The problem of limited power and other problems, to achieve the effect of increasing the power of scraping slag and power transmission

Pending Publication Date: 2022-07-08
河南省正大环境科技咨询工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing air flotation machine generally scrapes suspended solids, grease, colloidal substances, etc. floating on the surface of the sewage through a chain scraper. The scraping power of the chain scraper mainly depends on the transmission chain for transmission. The power is limited, and the chain has many connection points, which is prone to damage
In addition, the traditional air flotation machine does not remove the heavy suspended solids in the early stage, which makes the large particles inside the air flotation machine not easy to float up and deposits at the bottom of the air flotation machine, or causes the slag scraper to work after flotation The burden is heavy, which is not conducive to the stable operation of the air flotation machine

Method used

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  • Air flotation machine for domestic sewage treatment
  • Air flotation machine for domestic sewage treatment
  • Air flotation machine for domestic sewage treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1As shown, this embodiment provides an air flotation machine for domestic sewage treatment, including a flocculation tank 3, a dissolved gas tank 1 and a sterilization tank 18 that are connected in sequence, and the upper part of the flocculation tank 3 is provided with a grid with an upward opening Slot 9, the top of the grid slot 9 is provided with a cover plate 8, a filter bag is detachably installed on the cover plate 8, and a top plate 11 is provided on the top of the dissolved gas pool 1, and the top plate 11 is provided with Through groove a, a connecting plate 39 is slidably installed in the through groove a, and the side of the connecting plate 39 away from the flocculation tank 3 is connected with the piston rod a of the hydraulic cylinder a12, and the connecting plate 39 is in the vertical direction. A through hole is opened, a hydraulic cylinder b10 is arranged on the top of the connecting plate 39, the piston rod b of the hydraulic cylinder b10 ...

Embodiment 2

[0035] like Figure 4 and 5 As shown, based on Embodiment 1, the connecting plate 39 includes a connecting column and a mounting plate fixed above the connecting column, and the through groove a includes a groove 37 that rolls and fits with the mounting plate and slides with the connecting column. In the matching bar-shaped through groove 36 , the groove bottom of the groove 37 communicates with the upper notch of the bar-shaped through groove 36 . Two rollers 42 are provided at the bottom of the mounting plate on both sides of the connecting column. The bottom of the groove 37 is symmetrically provided with two strip-shaped grooves c38 along its center line for rolling fit with the rollers 42 . A plurality of vertical slots 41 are arranged in an annular array on the inner wall of the through hole, and a plurality of sliders slidably matched with the vertical slots 41 are arranged in the middle of the piston rod b.

[0036] The connecting plate 39 slides along the through gr...

Embodiment 3

[0038] like Figure 1-3 As shown in and 6, based on Embodiment 1, the filter bag includes a lower pouch 33, two connecting bodies 32 located above the pouch 33 and fixed at the opening thereof, and two connecting bodies 32 located on the connecting body 32 away from the A lifting head 6 at one end of the bag 33, the bag 33 of the filter bag is located in the grid groove 9, and the two lifting heads 6 are detachably connected to the cover plate 8. The lifting head 6 includes a horizontal plate and a vertical plate 30 fixed on both ends of the horizontal plate. A plurality of fixing rings 31 are arranged at the bottom of the horizontal plate. The fixing ring 31 is connected by winding a rope. The side of the grid groove 9 away from the dissolved gas pool 1 is provided with a channel for installing the sewage pipe 5, the connecting body 32 is provided with a circular through hole 34, and the water outlet of the sewage pipe 5 passes through in sequence. It extends to the inside ...

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Abstract

The invention discloses an air flotation machine for domestic sewage treatment, relates to the technical field of water treatment equipment, and solves the technical problems that a chain type slag scraper for an existing air flotation machine is limited in slag scraping power and easy to damage. The air flotation machine comprises a grid groove which is formed in the upper portion of a flocculation basin and provided with an upward opening, a cover plate is arranged at the top of the grid groove, and a filter bag is detachably installed on the cover plate; a top plate is arranged at the top of the gas dissolving tank, a through groove a is formed in the top plate, a connecting plate is slidably mounted in the through groove a, the side, away from the flocculation tank, of the connecting plate is connected with a piston rod a of a hydraulic cylinder a, a through hole is formed in the connecting plate in the vertical direction, and a hydraulic cylinder b is arranged at the top of the connecting plate; a piston rod b of the hydraulic cylinder b is inserted into the through hole and extends downwards out of the through hole, the end, away from the hydraulic cylinder b, of the piston rod b is connected with a scraper, and the piston rod b is in sliding fit with the inner wall of the through hole. According to the air flotation machine, a chain type slag scraper is replaced by the sliding type slag scraper, so that the slag scraping power is enhanced, and the durability and the stability of equipment are improved.

Description

technical field [0001] The invention relates to the technical field of water treatment equipment, and more particularly to the technical field of an air flotation machine for domestic sewage treatment. Background technique [0002] With the aggravation of water pollution, water resources are becoming less and less. In order to obtain more water resources, people need to process and recycle sewage for reuse. Water pollution treatment equipment mainly includes centrifuges, aerators, and sludge dewatering machines. and air flotation machines, etc. The air flotation machine uses the dissolved air system to generate a large number of micro-bubbles in the water, so that the air adheres to the suspended particles in the form of highly dispersed micro-bubbles, resulting in a state where the density of the suspended particles is lower than that of water, and uses the principle of buoyancy to make them float on the water. On the water treatment equipment to achieve solid-liquid separ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/24C02F1/52C02F1/001C02F1/40C02F1/50C02F2201/002C02F2303/04Y02W10/10
Inventor 朱召军范安亿李瑶瑶
Owner 河南省正大环境科技咨询工程有限公司