CN223766132U

CN223766132U - A solids separation flotation device for wastewater treatment in environmental remediation

Info

Publication number: CN223766132U
Application number: CN202520144605.1U
Authority: CN
Inventors: 齐茜; 张�成; 孙晓辉; 时梦甜; 张佳鑫; 丁香
Original assignee: Henan University of Science and Technology
Current assignee: Henan University of Science and Technology
Priority date: 2025-01-22
Filing date: 2025-01-22
Publication date: 2026-01-06
Anticipated expiration: 2035-01-22

Abstract

The utility model discloses an environment treatment sewage solid separation flotation device, which belongs to the technical field of sewage treatment and comprises a flotation tank, wherein a stirring tank, a dissolved air tank, a flotation tank, a slag filtering tank and a clear water sedimentation tank are arranged in an inner cavity of the flotation tank, and a mixing mechanism is arranged in the dissolved air tank; according to the utility model, the novel mixing mechanism is arranged in the dissolved air pond of the sewage flotation equipment, the mixing motor drives the three groups of screw shafts to rotate through the driving component, so that the sewage and dissolved air water components in the three independent mixing barrels are mixed, the power for discharging the sewage is improved, the phenomenon that the sewage is not easy to enter due to the congestion of oil residue at the outlet is avoided, the dissolved air water sheared by the screw shaft blades can uniformly enter the sewage, the efficiency of separating suspended solids by the bubble flotation is improved, the scraper at the bottom synchronously rotates to scrape mud, and the dissolved air device can efficiently enter the dissolved air water.

Description

Environment treatment sewage solid separation flotation device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to an environment treatment sewage solid separation flotation device.

Background

Flotation machines are mainly used for removing suspended solids, grease and other insoluble contaminants from sewage. The working principle is that micro bubbles are injected into sewage, and the bubbles are attached to pollutants to enable the pollutants to float on the water surface, so that the micro bubbles are convenient to remove, and the process is called an air floatation method and is an important technology in sewage treatment.

When the existing air floatation machine is used for treating sewage, the sewage added with the flotation agent is subjected to pretreatment stirring through the stirring device, so that the flotation agent and the sewage are fully mixed and then enter a dissolved air area, the clear water with bubbles is released into the sewage by the releasing device, and the bubbles and suspended matters are combined and separated in an upward floating manner and enter a floatation tank together for further floatation separation.

The sewage is mixed in the gas dissolving area for a short time, and flows into the flotation tank from the top outlet in a advection manner, and is mixed with the oil residues floating out of the top of the flotation tank, so that the oil residues can influence the normal entering of the follow-up sewage into the flotation tank, the more accumulated oil residues can also increase the collection of the residue scraping mechanism, in addition, the bubbles discharged by the gas dissolving device are difficult to uniformly enter the sewage due to the short mixing time, the use efficiency of the bubbles is reduced, and the normal entering of the gas dissolving water is influenced by the sludge which is precipitated to the bottom in the gas dissolving area.

In order to solve the problems, a sewage and solid separation flotation device for environmental treatment is provided.

Disclosure of utility model

The utility model aims to provide an environment treatment sewage solid separation flotation device, which solves the problems in the background technology.

The aim of the utility model can be achieved by adopting the following technical scheme:

The sewage and solid separation flotation device for environmental treatment comprises a flotation tank, wherein a stirring tank, a dissolved air tank, a flotation tank, a slag filtering tank and a clear water sedimentation tank are arranged in the inner cavity of the flotation tank, and a mixing mechanism is arranged in the dissolved air tank;

The mixing mechanism comprises a mixing drum which is fixedly installed on the inner wall of the gas dissolving tank in a sealing mode, a spiral shaft is installed in the mixing drum in a rotating mode, a scraper is coaxially installed at the bottom of the spiral shaft, a gas dissolving plate is arranged at the bottom of the scraper in a collision mode, the gas dissolving plate is embedded in the inner bottom of the gas dissolving tank, a driving assembly is sleeved on the top of the spiral shaft, and a mixing motor is installed on one side of the driving assembly in a matched mode.

Further, the mixing motor is fixed at the top of the flotation tank, and the outer edges of the spiral blades of the spiral shaft are 3-5mm away from the inner wall of the mixing cylinder.

Further, the top of one side of the outer wall of the mixing cylinder is provided with a water outlet, and the bottom of the other side of the outer wall of the mixing cylinder is provided with a water inlet.

Further, a stirring mechanism is arranged in the stirring tank, a partition plate is formed in the bottom of the stirring tank, the top of the partition plate is 25cm away from the top in the flotation tank, and a sewage introducing pipe is connected to one side of the outer part of the stirring tank in a plugging manner.

Further, a slag scraping mechanism is rotatably arranged at the outer top of the flotation tank through a bearing, and the slag scraping mechanism is arranged.

Further, a movable filter residue frame is arranged in the filter residue tank, the bottom of the filter residue frame is communicated with the inside of the flotation tank, and a clear water discharge pipe is inserted at one side of the outer wall of the clear water sedimentation tank.

Further, a gas dissolving mechanism is arranged on the outer wall of the flotation tank, an output pipe of the gas dissolving mechanism is communicated with the gas dissolving plate, and an input pipe of the gas dissolving mechanism is connected with the clear water discharge pipe through a tee joint.

The beneficial technical effects of the utility model are as follows:

According to the utility model, the novel mixing mechanism is arranged in the dissolved air pond of the sewage flotation equipment, the mixing motor drives the three groups of screw shafts to rotate through the driving component, so that the sewage and dissolved air water components in the three independent mixing barrels are mixed, the power for discharging the sewage is improved, the phenomenon that the sewage is not easy to enter due to the congestion of oil residue at the outlet is avoided, the dissolved air water sheared by the screw shaft blades can uniformly enter the sewage, the efficiency of separating suspended solids by the bubble flotation is improved, the scraper at the bottom synchronously rotates to scrape mud, and the dissolved air device can efficiently enter the dissolved air water.

Drawings

FIG. 1 is a schematic elevational view of a preferred embodiment of an environmentally treated wastewater solids separation flotation device in accordance with the present utility model;

FIG. 2 is a schematic bottom view of a preferred embodiment of an environmentally treated wastewater solids separation flotation device in accordance with the present utility model;

FIG. 3 is a schematic view showing the structure of a flotation tank with the top open in accordance with a preferred embodiment of an environmentally friendly wastewater solids separation flotation device in accordance with the present utility model;

FIG. 4 is a schematic diagram showing the semi-sectional structure of a dissolved air tank in a preferred embodiment of an environmentally benign wastewater solids separation flotation device in accordance with the present utility model;

Fig. 5 is a schematic view showing the structure of a mixing mechanism in a preferred embodiment of an environmentally friendly sewage solid separation flotation device according to the present utility model.

The reference numerals are explained as follows:

1. The device comprises a flotation tank, 101, a stirring tank, 102, a dissolved gas tank, 103, a flotation tank, 104, a filter residue tank, 105, a clear water sedimentation tank, 2, a stirring mechanism, 3, a sewage inlet pipe, 4, a mixing mechanism, 401, a mixing cylinder, 401a, a water outlet hole, 401b, a water inlet hole, 402, a mixing motor, 403, a driving assembly, 404, a screw shaft, 405, a dissolved gas plate, 406, a scraper, 5, a slag scraping mechanism, 6, a dissolved gas mechanism, 7 and a clear water discharge pipe.

Detailed Description

In order to make the technical solution of the present utility model more clear and obvious to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.

As shown in fig. 1-5, the environment treatment sewage solid separation flotation device provided by the embodiment comprises a flotation tank 1, wherein a stirring tank 101, a dissolved air tank 102, a flotation tank 103, a filter residue tank 104 and a clear water sedimentation tank 105 are arranged in an inner cavity of the flotation tank 1, a mixing mechanism 4 is arranged in the dissolved air tank 102, the mixing mechanism 4 comprises a mixing drum 401 which is fixedly installed on the inner wall of the dissolved air tank 102 in a sealing manner, a screw shaft 404 is rotatably installed in the mixing drum 401, a scraper 406 is coaxially installed at the bottom of the screw shaft 404, a dissolved air plate 405 is arranged at the bottom of the scraper 406 in a propping manner, the dissolved air plate 405 is embedded at the inner bottom of the dissolved air tank 102, a driving component 403 is sleeved on the top of the screw shaft 404, and a mixing motor 402 is installed on one side of the driving component 403 in a matching manner.

In the above structure, the scraper 406 rotates synchronously along with the screw shaft 404 to scrape the water outlet 401a of the dissolved air plate 405, so as to prevent sediment in sewage from blocking the water outlet 401a and affecting the discharge of the dissolved air water.

The mixing motor 402 is fixed at the top of the flotation tank 1, and the outer edges of the spiral blades of the spiral shaft 404 are 3-5mm away from the inner wall of the mixing drum 401, so that the mixing motor is arranged on the basis that the mixing drum 401 normally circulates sewage, and the spiral pushing effect of the blades of the spiral shaft 404 is matched, so that the liquid discharge speed of the sewage is improved, the shearing of suspended matters in the sewage after being combined with a flotation agent can be realized, the distribution range of dissolved air water in the sewage is improved, and the dissolved air water can be uniformly distributed in the suspended matters.

The top of one side of the outer wall of the mixing drum 401 is provided with a water outlet 401a, the bottom of the other side of the outer wall of the mixing drum 401 is provided with a water inlet 401b, the water inlet 401b is used for entering sewage, and the water outlet 401a is used for discharging sewage.

The stirring tank 101 is internally provided with a stirring mechanism 2, the bottom in the stirring tank 101 is provided with a partition plate, the top of the partition plate is 25cm away from the top in the flotation tank 1, one side of the outside of the stirring tank 101 is connected with a sewage introducing pipe 3 in a plugging mode, the stirring mechanism 2 consists of a stirring motor and a stirring frame, one side of the stirring motor is provided with a flotation agent dripping tank, and the sewage and the flotation agent are fully mixed.

The outer top of the flotation tank 103 is rotatably provided with a slag scraping mechanism 5 through a bearing, the slag scraping mechanism 5 is composed of a chain plate machine, an elastic scraping plate and a driving motor, and after oil slag is scraped and washed onto the inclined plate by the elastic scraping plate, the oil slag is scraped into a collecting device through an elastic effect and a moving effect, and the slag is scraped in a circulating mode.

The inside intercommunication of filter residue frame bottom and flotation tank 103 is provided with mobilizable filter residue frame in the filter residue pond 104, and clear water sedimentation tank 105 outer wall one side peg graft have clear water discharge pipe 7, and the mobilizable sediment of filter residue frame is arranged, and in the bottom filters the dirty water reentrant flotation tank 103 behind the oil residue, through the flotation effect of bubble in the flotation tank 103, upper strata oil residue floats at the top and is scraped sediment mechanism 5 and handle, and bottom mud is discharged by silt processing mechanism, and middle clear water is inhaled clear water sedimentation tank 105 through water pump and pipeline and is precipitated again, is discharged from clear water discharge pipe 7 at last.

The flotation tank 1 is provided with the dissolved air mechanism 6 on the outer wall, and the dissolved air mechanism 6 comprises the pump body, venturi and dissolved air tank, and when high-pressure water flows through from the venturi, outside air is inhaled, and the dissolved air tank is injected and mixed with clear water, then is input into sewage, through the effect of depressurization, forms the fine bubble of endless, and the output tube of dissolved air mechanism 6 communicates with dissolve gas board 405, and the input tube of dissolved air mechanism 6 passes through three-way connection with clear water discharge pipe 7, realizes supplying clear water for dissolved air mechanism 6.

The device has the working principle that when the device is used, the external power supply and the external control device are connected.

The sewage after pretreatment of large particles is input into a flotation tank 1 from a sewage inlet pipe 3, firstly, the sewage enters into a stirring tank 101, under the action of a stirring mechanism 2, a flotation agent is mixed into the sewage, so that suspended matters in the sewage are condensed together, then, the sewage enters into a dissolved air tank 102 along with the sewage flow, enters into the mixing tank 401 from a water inlet hole 401b at one side of the bottom of the mixing tank 401, meanwhile, dissolved air water in a dissolved air mechanism 6 is introduced into a dissolved air plate 405, the dissolved air water is discharged from the dissolved air plate 405 and mixed with the sewage, a mixing motor 402 drives a screw shaft 404 to synchronously rotate through a driving component 403, the upper discharge of the sewage flow in the three groups of mixing tanks 401 is accelerated, meanwhile, the sewage is sheared, bubbles are uniformly dispersed and pressed into various positions in the sewage, finally, the suspended matters are discharged from a water outlet hole 401a, the suspended matters are further separated into a flotation tank 103, the bubbles take away the small-mass suspended matters to rise and accumulate, the foamed oil slag is scraped into a filter residue tank 104 by a slag scraper of the slag scraper mechanism 5, the sewage is further filtered, the suspended matters are precipitated at the bottom of the flotation tank 103, the high-mass suspended matters are discharged from the middle of the sediment tank 105 and the sediment is discharged through a clear water collector 105, and the clear water is discharged from a clear water collector 7.

The above is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.

Claims

1. The environment treatment sewage solid separation flotation device comprises a flotation box (1) and is characterized in that a stirring tank (101), a dissolved air tank (102), a flotation tank (103), a filter residue tank (104) and a clear water sedimentation tank (105) are arranged in an inner cavity of the flotation box (1), and a mixing mechanism (4) is arranged in the dissolved air tank (102);

Mixing mechanism (4) include with dissolve gas pond (102) inner wall seal fixed mounting's mixing drum (401), mixing drum (401) inside rotation is installed screw axis (404), scraper (406) are installed to the bottom coaxial of screw axis (404), dissolve gas board (405) are contradicted to scraper (406) bottom, dissolve gas board (405) and inlay dissolve gas pond (102) inner bottom, the top cover of screw axis (404) is equipped with drive assembly (403), mixing motor (402) are installed in cooperation of drive assembly (403) one side.

2. An environmental remediation sewage solid separation flotation device according to claim 1 wherein the mixing motor (402) is fixed to the top of the flotation tank (1) and the outer edges of the helical blades of the helical shaft (404) are 3-5mm from the inner wall of the mixing drum (401).

3. The device for separating and floating solid sewage from environment treatment according to claim 2, wherein the top of one side of the outer wall of the mixing drum (401) is provided with a water outlet hole (401 a), and the bottom of the other side of the outer wall of the mixing drum (401) is provided with a water inlet hole (401 b).

4. The device for separating and floating solid sewage from environment treatment according to claim 3, wherein the stirring tank (101) is internally provided with a stirring mechanism (2), a partition plate is formed in the inner bottom of the stirring tank (101), the top of the partition plate is 25cm away from the inner top of the flotation tank (1), and one side of the outer part of the stirring tank (101) is connected with a sewage introducing pipe (3) in a plugging manner.

5. The device for separating and floating solid from sewage for environmental treatment according to claim 4, wherein the top of the outer part of the floatation tank (103) is rotatably provided with a slag scraping mechanism (5) through a bearing, and the slag scraping mechanism (5) is arranged on the top of the floatation tank.

6. The device for separating and floating solid sewage from environment-friendly sewage treatment according to claim 5, wherein a movable filter residue frame is arranged in the filter residue tank (104), the bottom of the filter residue frame is communicated with the inside of the floatation tank (103), and a clear water discharge pipe (7) is inserted at one side of the outer wall of the clear water sedimentation tank (105).

7. The device for separating and floating solid sewage from environment treatment according to claim 6, wherein a dissolved air mechanism (6) is arranged on the outer wall of the flotation tank (1), an output pipe of the dissolved air mechanism (6) is communicated with the dissolved air plate (405), and an input pipe of the dissolved air mechanism (6) is connected with the clear water discharge pipe (7) through a tee joint.