CN210367108U

CN210367108U - Abrasive waste residue water circulation separation system

Info

Publication number: CN210367108U
Application number: CN201920994462.8U
Authority: CN
Inventors: 周士祥
Original assignee: Wuxi Hengxiang Polishing Abrasive Factory
Current assignee: Wuxi Hengxiang Polishing Abrasive Factory
Priority date: 2018-09-17
Filing date: 2019-06-28
Publication date: 2020-04-21
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses an abrasive material waste residue water circulation piece-rate system, include effluent water sump, clean water basin, mix the pond, dissolve gas pitcher and air supporting pond, effluent water sump and clean water basin intercommunication are exported jointly to mixing in the pond, mix the pond export with dissolve the gas pitcher and be connected, dissolve gas pitcher exit linkage and dissolve gas water releaser, in the air supporting pond was located to the releaser, be equipped with waste residue export and clear water export on the air supporting pond, the bottom of the pool portion was equipped with the catchment area, and clear water export below is located to the catchment area, form clear water circulation reflux system between clear water export and the clean water basin. By the mode, the utility model has the advantages of large processing capacity, high efficiency and small occupied area; the process and the equipment are simple in structure and convenient to use and maintain; the method has obvious effect on removing the abrasive waste residues in the water, and simultaneously, the aeration increases the dissolved oxygen in the water, thereby providing favorable conditions for subsequent treatment; the water circulation system is provided, so that the energy is saved and the cost is reduced while a good slag-water separation effect is achieved.

Description

Abrasive waste residue water circulation separation system

Technical Field

The utility model relates to a sewage treatment field especially relates to an abrasive material waste residue water circulation piece-rate system.

Background

The air floatation technology is widely applied to water supply and drainage and wastewater treatment in recent years, and can effectively remove light floating flocs which are difficult to precipitate in wastewater. Dissolved Air Flotation (DAF) is suitable for treating water with low turbidity, high color, high organic content, low oil content, low surface active content or having an algae abundance. Compared with other air floatation modes, the air floatation device has the advantages of high hydraulic load, compact tank body and the like. But the process and the equipment of the method are complex in structure, inconvenient to use and maintain and high in water resource utilization cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who mainly solves provides a process and equipment simple structure, convenient to use, maintenance, ability energy saving, reduce cost's abrasive material waste residue water circulation piece-rate system.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an abrasive material waste residue water circulation piece-rate system, include effluent water sump, clean water basin, mixed pond, dissolve gas pitcher and air supporting pond, effluent water sump and clean water basin intercommunication are exported jointly to mixed pond in, mixed pond export with dissolve the gas pitcher and be connected, dissolve gas pitcher exit linkage and dissolve gas water releaser, in the air supporting pond was located to the releaser, be equipped with waste residue export and clear water export on the air supporting pond, the bottom of the pool portion was equipped with the catchment area, and clear water export below is located to the catchment area, form clear water circulation reflux system between clear water export and the clean water basin.

In a preferred embodiment of the present invention, a chemical feeding port is provided in the water collecting area, and the coagulant and the flocculant are fed into the flotation tank from the chemical feeding port.

In a preferred embodiment of the present invention, a heating device is disposed in the water collecting area to accelerate the fusion of the coagulant and the flocculant with the sewage.

In a preferred embodiment of the invention, the sewage tank is directly connected with the dissolved air tank.

In a preferred embodiment of the present invention, a foam scraper is disposed above the air flotation tank.

In a preferred embodiment of the present invention, the air in the dissolved air tank is provided by an air compressor, and a float level gauge in the dissolved air tank controls the on/off of the air compressor.

In a preferred embodiment of the present invention, a self-cleaning system is disposed on the releaser, the self-cleaning system comprises a vacuum-pumping system and a clean water cleaning system, the tongue piece of the releaser is opened during cleaning, and the vacuum-pumping system and the clean water cleaning system are opened for washing.

In a preferred embodiment of the present invention, a pressure gauge is provided on the dissolved air tank, and when the circulation separation system is operated, the reading of the pressure gauge should not exceed 0.6 MPa.

The utility model has the advantages that: the utility model has the advantages of large processing capacity, high efficiency and small occupied area; the process and the equipment are simple in structure and convenient to use and maintain; the method has obvious effect on removing the abrasive waste residues in the water, and simultaneously, the aeration increases the dissolved oxygen in the water, thereby providing favorable conditions for subsequent treatment; the water circulation system is provided, so that the energy is saved and the cost is reduced while a good slag-water separation effect is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention includes:

a water circulation separation system for abrasive waste residues comprises a sewage tank 1, a clean water tank 2, a mixing tank 3, a dissolved air tank 4 and an air floatation tank 5.

The sewage pool 1 is communicated with the clean water pool 2 and jointly output to the mixing pool 3, and the outlet of the mixing pool is connected with the dissolved air tank 4.

When sewage containing more abrasive waste residues is treated, the sewage needs to be diluted by clear water, and the content of the abrasive waste residues in the mixing tank 3 is reduced and then the sewage is output to the dissolved air tank 4.

Dissolve 4 exit linkage of gas pitcher and dissolve gas water releaser 6, in air supporting pond 5 was located to releaser 6, be equipped with waste residue export and clear water export on the air supporting pond 5, the bottom of the pool was equipped with catchment area 7, form clear water circulation reflux system 8 between clear water export and the clear water pond.

The waste residue outlet can be connected to a sludge tank or sludge treatment equipment, a part of the clear water outlet flows to the clear water channel through the overflow weir, and then is discharged along the pipeline or enters the next treatment unit, and the other part of the clear water outlet returns to the clear water tank through the clear water circulation reflux system 8.

The water collecting area 7 is arranged below the clear water outlet, part of water is always left in the water collecting area 7 and is in the air flotation tank, a dosing port 9 is arranged in the water collecting area 7, and a coagulant and a flocculating agent are thrown into the air flotation tank 5 from the dosing port and are subjected to fusion reaction with the residual clear water.

The coagulant is preferably polyaluminium chloride; the flocculating agent is preferably polyacrylamide.

Wherein, a heating device is arranged in the water collecting area 7 for accelerating the fusion of the coagulant, the flocculating agent and the sewage.

The sewage pool 1 or the sewage pool is directly connected with the dissolved air tank 4, when the content of the abrasive waste residue in the sewage pool 1 is lower, the abrasive waste residue can be directly sent into the dissolved air tank 4 to form dissolved air water, and then the dissolved air water is output to the air floatation pool 5.

A foam scraping machine 10 is arranged above the air floatation tank 5. After the scum is accumulated to a certain thickness, the foam scraping machine 10 is started, and the scum is scraped into a sludge tank of the air flotation machine by the foam scraping machine 10 and then discharged into a scum canal and then discharged into the sludge tank.

The air in the dissolved air tank 4 is provided by an air compressor 12, and the opening and closing of the air compressor are controlled by a floating ball liquid level meter in the dissolved air tank 4. As the air in the tank is continuously taken away by the dissolved air water, the air in the tank is gradually reduced, and the water level rises. When the water level rises to a certain position, the floating ball liquid level meter controls the air compressor 12 to work, so that enough air quantity is in the tank.

The releaser 6 is a key device of the system, and has obvious influence on the size and distribution of bubble formation, the air floatation water purification effect and the operation cost. The air release efficiency of the currently used releaser can reach 99.2 percent. The release rule of the bubbles of the dissolved gas water during pressure reduction and energy dissipation is different from the condition of the bubbles in the still water; the appearance of large bubbles at low pressures is due to releaser failure. In addition to releasing large quantities of stable microbubbles, it is critical how to prevent clogging. The dissolved air releaser is selected according to the quality of the oily sewage, the treatment process and the performance of the releaser.

Therefore, the utility model discloses designed the self-cleaning system on releaser 6, the self-cleaning system is including evacuation system and clear water cleaning system, opens the tongue piece of releaser during the washing, opens evacuation system and clear water cleaning system and washes.

When the releaser 6 is blocked, the vacuum-pumping valve can be opened to open the tongue of the releaser, the releaser is cleaned by clean water to flush the blockage, and then the valve is closed, and the valve is opened for 10-20 seconds generally.

The pressure gauge 11 is arranged on the dissolved air tank 4, and when the circulating separation system operates, the reading of the pressure gauge 11 cannot exceed 0.6 MPa.

The working principle is as follows: the water outlet valve of the pool of clean water and sewage is opened, after the clean water and the sewage are mixed in the mixing pool, the water inlet control valve of the dissolved air tank is opened, the pressure of the pressure gauge of the dissolved air tank is gradually increased, and the pressure generally reaches 0.4-0.5 MPa. The water outlet control valve of the dissolved air tank releases the dissolved air water into the air floatation tank through the releaser; at the moment, the water collecting area at the bottom of the air floatation tank is filled with chemicals, and the dissolved air water is mixed and contacted with the chemicals to enable the flocculating constituents to be adhered to the fine micro bubbles and then enter the air floatation area. The flocculating constituent floats to the water surface under the action of the air flotation force to form floating slag, and the clean water at the lower layer flows back to a clean water pool or flows to a clean water channel through an overflow weir and then is discharged along a pipeline or enters the next treatment unit. After scum on the water surface of the floatation tank is accumulated to a certain thickness, the scum is scraped into a sludge tank of the floatation machine by a scum scraper and then is discharged into a scum canal and then is discharged into the sludge tank.

The utility model has the advantages of large processing capacity, high efficiency and small occupied area; the process and the equipment are simple in structure and convenient to use and maintain; the method has obvious effect on removing the abrasive waste residues in the water, and simultaneously, the aeration increases the dissolved oxygen in the water, thereby providing favorable conditions for subsequent treatment; the water circulation system is provided, so that the energy is saved and the cost is reduced while a good slag-water separation effect is achieved.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims

1. The utility model provides an abrasive material waste residue water circulation piece-rate system, its characterized in that includes effluent water sump, clean water basin, mixed pond, dissolves gas pitcher and air supporting pond, effluent water sump and clean water basin intercommunication are exported jointly to mixed pond in, mixed pond export with dissolve the gas pitcher and be connected, dissolve gas pitcher exit linkage and dissolve gas water releaser, in the air supporting pond was located to the releaser, be equipped with waste residue export and clear water export on the air supporting pond, the bottom of the pool portion was equipped with the catchment area, and clear water export below is located to the catchment area, form clear water circulation reflux system between clear water export and the clean water basin.

2. The recycling separation system for abrasive waste residue water according to claim 1, wherein a chemical feeding port is provided in the water collection area, and a coagulant and a flocculant are fed into the flotation tank from the chemical feeding port.

3. The recycling separation system for abrasive waste residue as claimed in claim 2, wherein a heating device is provided in the water collection area to accelerate the fusion of the coagulant and flocculant with the sewage.

4. The recycling separation system for abrasive waste residue water according to claim 1, characterized in that a sewage tank or a dissolved air tank is directly connected.

5. The recycling separation system for abrasive waste residue water as claimed in claim 1, wherein a foam scraper is arranged above the air flotation tank.

6. The recycling separation system for abrasive waste residue as claimed in claim 1, wherein the air in the dissolved air tank is provided by an air compressor, and the float level gauge in the dissolved air tank controls the on-off of the air compressor.

7. The recycling and separating system for abrasive waste residues as claimed in claim 1, wherein the releaser is provided with a self-cleaning system, the self-cleaning system comprises a vacuum-pumping system and a clean water cleaning system, and the tongue piece of the releaser is opened during cleaning, and the vacuum-pumping system and the clean water cleaning system are started for flushing.

8. The recycling separation system for abrasive waste residue water according to claim 1, wherein the dissolved air tank is provided with a pressure gauge, and when the recycling separation system operates, the reading of the pressure gauge is not more than 0.6 MPa.