CN204342469U - A kind of shallow air-floatation device - Google Patents
A kind of shallow air-floatation device Download PDFInfo
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- CN204342469U CN204342469U CN201420703248.XU CN201420703248U CN204342469U CN 204342469 U CN204342469 U CN 204342469U CN 201420703248 U CN201420703248 U CN 201420703248U CN 204342469 U CN204342469 U CN 204342469U
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Abstract
The utility model relates to paper making equipment technical field, particularly relate to a kind of method of shallow air-floatation device and sewage disposal, the structure of shallow air-floatation device comprises sump pump, air flotation pool, inlet channel, high-pressure pump and air dissolving system, sump pump is communicated with the bottom of air flotation pool by inlet channel, water distributor is provided with in air flotation pool, scoop slag device, sludge hopper and Rinsing Area, the transverse direction of air flotation pool is disposed with contact reacts district and disengaging zone, disengaging zone is communicated with Rinsing Area by header, the slag notch scooping slag device is arranged at directly over sludge hopper, the bottom of sludge hopper is communicated with slag chute.Compared with prior art, dissolved oxygen rate of the present utility model is the twice of complete molten formula airfloat equipment, and energy consumption is low one times, and the paper waste after process meets SS<30mg/L, and doubly, Absorbable organic halogens reaches emission standard to colourity <20.
Description
Technical field
The utility model relates to paper making equipment technical field, particularly relates to a kind of shallow air-floatation device.
Background technology
Shallow air-floatation technology adopts air-dissolving air-float principle, part dissolved air water is passed in pending water, utilize the micro-bubble discharged in dissolved air water, suspended substance in water or oil are emerged, thus reaching the object of solid-liquid separation, shallow air-floatation is widely used in water supply purification, sanitary sewage, Industrial Wastewater Treatment.
Traditional slightly soluble type airfloat equipment by micropore by gas along with high pressure water is blended in water by force, the oxygen dissolved is 10% ~ 20%, and can only reflux 20% ~ 22% air supporting water outlet (clear water of no suspended substance), once effluent quality has fluctuation, very container is blocking microporous for the water of backflow, causes maintenance load and processing pressure.
As improvement, complete molten type airfloat equipment is adopted in prior art, it is by special low pressure air dissolved pump impeller by former water 100%, under the centrifugal force and cutting force of air dissolved pump impeller, oxygen is brought into and is together cut in former water, along with the power of pump, the former water good with oxygen mix is distributed in air flotation pool, and suspended substance floats together along with the buoyancy of micro-bubble.But because all former water will pass through air dissolved pump, the water yield is large, therefore this complete molten type airfloat equipment energy consumption is higher, and adopts the dissolved oxygen rate of low pressure solution gas also to only have 55% ~ 65%.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art and provides that a kind of dissolved oxygen rate is high, energy consumption is low, the shallow air-floatation device of good sewage processing effect.
The purpose of this utility model is achieved through the following technical solutions:
A kind of shallow air-floatation device is provided, comprise sump pump, air flotation pool, inlet channel, high-pressure pump and air dissolving system, described sump pump is communicated with by the bottom of inlet channel with described air flotation pool, be provided with water distributor in described air flotation pool, scoop slag device, sludge hopper and Rinsing Area, the transverse direction of described air flotation pool is disposed with contact reacts district and disengaging zone, described disengaging zone is communicated with described Rinsing Area by header, the described slag notch scooping slag device is arranged at directly over described sludge hopper, and the bottom of described sludge hopper is communicated with slag chute;
Described air dissolving system comprises backflow water pipe, dissolving, high-pressure pump, dissolving water inlet pipe and dissolving rising pipe, the water-in of described backflow water pipe is communicated with described inlet channel, the water outlet of described backflow water pipe is communicated with described dissolving water inlet pipe by described high-pressure pump, and the water outlet of described dissolving rising pipe is communicated with the water outlet of described inlet channel and is communicated with the bottom of described air flotation pool.
Wherein, the output terminal of described dissolving water inlet pipe is provided with jet spray device.
Wherein, the bottom in described contact reacts district is provided with dissolved air release.
Wherein, described dissolving is provided with vapor liquid equilibrium device.
Wherein, the pipeline of described backflow water pipe, described dissolving water inlet pipe and described dissolving rising pipe is provided with gate valve.
Wherein, described inlet channel is provided with under meter.
Wherein, the operating pressure of described high-pressure pump is set to 0.3 ~ 0.5Mpa.
the beneficial effects of the utility model:
When a kind of shallow air-floatation device of the present utility model carries out sewage disposal, sewage enters the contact reacts district of air flotation pool by inlet channel, a part of sewage is shunted by inlet channel and is entered dissolving by high-pressure pump and forms dissolved air water simultaneously, dissolved air water fully mixes with the sewage in inlet channel and flocculates, the sewage flocculated mixes with the nano level micro-bubble of dissolved air water and release thereof again in contact reacts district, flco in sewage is attached to micro-bubble and rises gradually in contact reacts district, then disengaging zone is entered by overflow, scum silica frost is formed after disengaging zone is separated with water, thus reach the object of quick solid-liquid separation, the scum silica frost floated has scooped through scooping slag device and has flowed automatically to sludge hopper, then slag chute is disposed to, lower clear liquid enters Rinsing Area by header, discharged or recycling by rising pipe.Air dissolving system of the present utility model adopts energy-conservation high-pressure pump, energy consumption is low, and efficiency is high, and the former water of 50% enters dissolving through high-pressure pump, fully mixed with oxygen by fluidic device, pressurize, can dissolve 98 ~ 99% oxygen, form super-saturated dissolved air water, then by dissolved air release, discharge the micro-bubble of a large amount of diameter at 10 ~ 30um, combine with the flco in water, form stable gas enclosure flco, float up to the water surface together, complete the separation of the floating thing of wadding.Compared with prior art, dissolved oxygen rate of the present utility model is the twice of complete molten formula airfloat equipment, and energy consumption is low one times, and good sewage processing effect, paper waste after process meets SS<30mg/L, and doubly, Absorbable organic halogens reaches emission standard to colourity <20.
Accompanying drawing explanation
Utilize accompanying drawing to be described further the utility model, but the content in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of shallow air-floatation device of the present utility model.
Fig. 1 comprises:
Sump pump 1;
Air flotation pool 2, scoop slag device 21, sludge hopper 22, contact reacts district 23, disengaging zone 24, Rinsing Area 25, header 26;
Inlet channel 3;
High-pressure pump 4;
Backflow water pipe 5;
Dissolving 6, dissolving water inlet pipe 61, dissolving rising pipe 62;
Jet spray device 7;
Under meter 8.
Embodiment
With the following Examples and accompanying drawing the utility model is described in further detail.
A kind of shallow air-floatation device of the present utility model, as shown in Figure 1, comprise sump pump 1, air flotation pool 2, inlet channel 3, high-pressure pump 4 and air dissolving system, sump pump 1 is communicated with the bottom of air flotation pool 2 by inlet channel 3, be provided with water distributor in air flotation pool 2, scoop slag device 21, sludge hopper 22 and Rinsing Area 25, the transverse direction of air flotation pool 2 is disposed with contact reacts district 23 and disengaging zone 24, disengaging zone 24 is communicated with Rinsing Area 25 by header 26, the slag notch scooping slag device 21 is arranged at directly over sludge hopper 22, and the bottom of sludge hopper 22 is communicated with slag chute;
Air dissolving system comprises backflow water pipe 5, dissolving 6, high-pressure pump 4, dissolving water inlet pipe 61 and dissolving rising pipe 62, the water-in of backflow water pipe 5 is communicated with inlet channel 3, the water outlet of backflow water pipe 5 is communicated with the water inlet pipe of dissolving 6 by high-pressure pump 4, and the water outlet of dissolving rising pipe 62 is communicated with the water outlet of inlet channel 3 and is communicated with the bottom of air flotation pool 2.
Concrete, the output terminal of dissolving water inlet pipe 61 is provided with jet spray device 7, by the high-speed motion of current in spout, dissolving water inlet pipe 61, a large amount of air is made to be inhaled within the shortest time and to be become micro-bubble by high-speed cutting, then dissolve in greatest extent in water, form super-saturated dissolved air water.
Concrete, the bottom in contact reacts district 23 is provided with dissolved air release, the over-saturation dissolved air water that air dissolving system is formed enters contact reacts district 23, the micro-bubble of a large amount of diameter at 10 ~ 30um is discharged through dissolved air release, combine with the flco in water, form stable gas enclosure flco, float up to the water surface together, complete the separation of the floating thing of wadding.
Concrete, dissolving 6 is provided with vapor liquid equilibrium device.
Concrete, the pipeline of backflow water pipe 5, dissolving water inlet pipe 61 and dissolving rising pipe 62 is provided with gate valve 64.
Concrete, inlet channel 3 is provided with under meter 8, can the flow of sewage in pilot piping.
Concrete, the operating pressure of high-pressure pump is set to 0.3 ~ 0.5Mpa.
The principle of work of shallow air-floatation device of the present utility model is as follows:
Sewage enters the contact reacts district 23 of air flotation pool 2 by inlet channel 3, a part of sewage is shunted by inlet channel 3 and is entered dissolving 6 by high-pressure pump 4 and forms dissolved air water simultaneously, dissolved air water fully mixes with the sewage in inlet channel 3 and flocculates, the sewage flocculated mixes with the nano level micro-bubble of dissolved air water and release thereof again in contact reacts district 23, flco in sewage is attached to micro-bubble and rises gradually in contact reacts district 23, then disengaging zone 24 is entered by overflow, scum silica frost is formed after disengaging zone 24 is separated with water, thus reach the object of quick solid-liquid separation, the scum silica frost floated has scooped through scooping slag device 21 and has flowed automatically to sludge hopper 22, then slag chute is disposed to, lower clear liquid enters Rinsing Area 25 by header 26, discharged or recycling by rising pipe.
Air dissolving system of the present utility model adopts energy-conservation high-pressure pump 4, energy consumption is low, and efficiency is high, and the former water of 50% enters dissolving 6 through high-pressure pump 4, fully mixed with oxygen by fluidic device, pressurize, can dissolve 98 ~ 99% oxygen, form super-saturated dissolved air water, then by dissolved air release, discharge the micro-bubble of a large amount of diameter at 10 ~ 30um, combine with the flco in water, form stable gas enclosure flco, float up to the water surface together, complete the separation of the floating thing of wadding.Compared with prior art, dissolved oxygen rate of the present utility model is the twice of complete molten formula airfloat equipment, and energy consumption is low one times, and good sewage processing effect, paper waste after process meets SS<30mg/L, and doubly, Absorbable organic halogens reaches emission standard to colourity <20.
Adopt shallow air-floatation device of the present utility model to carry out the method for sewage disposal, comprise the following steps:
1) pump well collects sewage and regulating water quality, keeps stable before making water quality enter air flotation pool 2;
2) sewage is promoted to air flotation pool 2 by sump pump 1 through inlet channel 3, adds polymerize aluminum chloride at the entrance of sump pump 1, and the impeller through sump pump 1 is fully uniformly mixed, in the process being delivered to inlet channel 3, carry out mixed flocculation;
3) sewage of high-pressure pump 4 by-passing portions from inlet channel 3 enters dissolving 6 through backflow water pipe 5 and produces dissolved air water, and dissolved air water is delivered to the bottom of air flotation pool 2 through dissolving rising pipe 62;
4) add polyacrylamide in the bottom of air flotation pool 2 near the position of the water outlet of inlet channel 3, dissolved air water fully mixes with the sewage carried by inlet channel 3, again flocculates;
5) sewage flocculated through step 4) now mixes again with dissolved air water, and the sewage mixed is distributed to the contact reacts district 23 of air flotation pool 2 via water distributor, and moves in a circle and reach the zero velocity of water distribution;
6) dissolved air water discharges a lot of nano level micro-bubble in contact reacts district 23, flco in sewage to be attached on micro-bubble and to enter disengaging zone 24 along with micro-bubble floats gradually, after disengaging zone 24 is separated with water, forms scum silica frost and lower clear liquid, reaches the object of quick solid-liquid separation;
7) scum silica frost floated has scooped flowed automatically to sludge hopper 22 through scooping slag device 21, is then disposed to slag chute and does further process;
8) under, clear liquid enters into Rinsing Area 25 by header 26, is discharged or recycling by rising pipe.
The operating pressure of high-pressure pump 4 is set to 0.3 ~ 0.5Mpa, adopts energy-conservation high-pressure pump 4, has the advantage that energy consumption is low, efficiency is high.
In step 6), the diameter of micro-bubble is 10 ~ 30um.
Finally should be noted that; the restriction of above embodiment only for illustration of the technical solution of the utility model but not to the utility model protection domain; although be explained in detail the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (7)
1. a shallow air-floatation device, it is characterized in that: comprise sump pump, air flotation pool, inlet channel, high-pressure pump and air dissolving system, described sump pump is communicated with by the bottom of inlet channel with described air flotation pool, be provided with water distributor in described air flotation pool, scoop slag device, sludge hopper and Rinsing Area, the transverse direction of described air flotation pool is disposed with contact reacts district and disengaging zone, described disengaging zone is communicated with described Rinsing Area by header, the described slag notch scooping slag device is arranged at directly over described sludge hopper, and the bottom of described sludge hopper is communicated with slag chute;
Described air dissolving system comprises backflow water pipe, dissolving, high-pressure pump, dissolving water inlet pipe and dissolving rising pipe, the water-in of described backflow water pipe is communicated with described inlet channel, the water outlet of described backflow water pipe is communicated with described dissolving water inlet pipe by described high-pressure pump, and the water outlet of described dissolving rising pipe is communicated with the water outlet of described inlet channel and is communicated with the bottom of described air flotation pool.
2. a kind of shallow air-floatation device according to claim 1, is characterized in that: the output terminal of described dissolving water inlet pipe is provided with jet spray device.
3. a kind of shallow air-floatation device according to claim 1, is characterized in that: the bottom in described contact reacts district is provided with dissolved air release.
4. a kind of shallow air-floatation device according to claim 1, is characterized in that: described dissolving is provided with vapor liquid equilibrium device.
5. a kind of shallow air-floatation device according to claim 1, is characterized in that: the pipeline of described backflow water pipe, described dissolving water inlet pipe and described dissolving rising pipe is provided with gate valve.
6. a kind of shallow air-floatation device according to claim 1, is characterized in that: described inlet channel is provided with under meter.
7. a kind of shallow air-floatation device according to claim 1, is characterized in that: the operating pressure of described high-pressure pump is set to 0.3 ~ 0.5Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703248.XU CN204342469U (en) | 2014-11-21 | 2014-11-21 | A kind of shallow air-floatation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703248.XU CN204342469U (en) | 2014-11-21 | 2014-11-21 | A kind of shallow air-floatation device |
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| CN204342469U true CN204342469U (en) | 2015-05-20 |
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| CN201420703248.XU Active CN204342469U (en) | 2014-11-21 | 2014-11-21 | A kind of shallow air-floatation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370323A (en) * | 2014-11-21 | 2015-02-25 | 广东理文造纸有限公司 | Shallow air-floatation device and sewage treatment method |
| CN109485118A (en) * | 2018-12-26 | 2019-03-19 | 湖北君集水处理有限公司 | A kind of closed tiny structure gas floatation separation device |
-
2014
- 2014-11-21 CN CN201420703248.XU patent/CN204342469U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370323A (en) * | 2014-11-21 | 2015-02-25 | 广东理文造纸有限公司 | Shallow air-floatation device and sewage treatment method |
| CN104370323B (en) * | 2014-11-21 | 2017-01-04 | 广东理文造纸有限公司 | A kind of shallow air-floatation device and the method for sewage disposal |
| CN109485118A (en) * | 2018-12-26 | 2019-03-19 | 湖北君集水处理有限公司 | A kind of closed tiny structure gas floatation separation device |
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