CN104071963A - Radial-flow air-flotation thickening apparatus for sludge - Google Patents
Radial-flow air-flotation thickening apparatus for sludge Download PDFInfo
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- CN104071963A CN104071963A CN201310094747.3A CN201310094747A CN104071963A CN 104071963 A CN104071963 A CN 104071963A CN 201310094747 A CN201310094747 A CN 201310094747A CN 104071963 A CN104071963 A CN 104071963A
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- mud
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Abstract
The invention provides a radial-flow air-flotation thickening apparatus for sludge. The apparatus comprises a contact area 1, a separation zone 2, a water outlet channel 3, a scum tank 4, a sludge tank 5, an air-dissolved water inlet pipe 6, a sludge inlet pipe 7, an effluent collecting pipe 8, a water outlet pipe 9, a slag discharge pipe 10, a sludge discharge pipe 11, a sludge and slag scraping machine 12 and a micro-nano bubble releaser 13, wherein the bottom of the sludge and slag scraping machine 12 is equipped with a sludge scraping plate 15 which is used for scraping sludge deposited at the bottom of a pool into the sludge tank 5, a slag scraping plate 14 is installed on a water surface and used for scraping thickened sludge into the scum tank 4, the micro-nano bubble releaser 13 introduces air-dissolved water into the bottom of the contact area 1, the effluent collecting pipe 8 introduces clear water at the bottom of the separation zone into the water outlet channel 3, the contact area 1 is located at the center of the separation zone 2, the water outlet channel 3 is located at the inner side of the separation zone 2, the scum tank 4 is hung on the sidewall of the water outlet channel 3, and the sludge tank 5 is located at the bottom of the separation zone 2. The apparatus has the advantages of a simple structure, easy maintenance, low cost, an ideal sludge thickening effect and applicability to large-scale sewage treatment plants.
Description
Technical field
The present invention relates to technical field of sludge treatment, particularly relate to a kind of air supporting concentrating unit.
Background technology
The concentrated mode of sludge of sewage treatment plant has a variety of, as concentrated in: gravity concentration, air supporting, belt thickener, centrifugal concentrating etc., and wherein air supporting is concentrated is a kind of typical technique.Its method is in mud, to pass into a large amount of micro-bubbles, and microbubble and mud flco adhere to, and forms the band gas flco that density is less than water, under the effect of buoyancy, floats up to the water surface and completes solid-liquid separation.At present, domestic mud air supporting thickening equipment complex structure, cost is high, and processing power is little.
Summary of the invention
The invention provides a kind of radial-flow mud air supporting concentrating unit, it is simple in structure, is easy to safeguard, cost is low, and mud concentrated effect is ideal, and has solved maximization problem, and unitary device can be processed the mud 40000m of water ratio 99%
3more than/d.
Radial-flow mud air supporting concentrating unit of the present invention is comprised of zone of action 1, disengaging zone 2, outlet canal 3, scum silica frost groove 4, sludge sump 5, dissolved air water water inlet pipe 6, water inlet pipe 7, effluent collection pipe 8, rising pipe 9, scum pipe 10, shore pipe 11, mud and slag scraping machine 12, dissolved air release 13.Wherein mud and slag scraping machine 12, and cleaning shoe 15 is equipped with in bottom, for heavy mud at the bottom of pond is scraped into sludge sump 5, dreg scraper 14 are installed, for water surface scum silica frost is scraped into scum silica frost groove 4 on the water surface; Dissolved air release 13 is introduced 1 bottom, zone of action by dissolved air water; Effluent collection pipe 8 is introduced outlet canal 3 by the clear water of 2 bottoms, disengaging zone.Zone of action 1 is cylindrical, is positioned at the center of circular disengaging zone 2, and outlet canal 3 is positioned at 2 inner sides, disengaging zone or outside, and scum silica frost groove 4 is suspended on the sidewall of disengaging zone 2, and sludge sump 5 is positioned at 2 bottoms, disengaging zone.
By water inlet pipe 7, from zone of action, 1 bottom enters mud, and dissolved air water enters by molten gas water inlet pipe 6, by dissolved air release 13, discharges a large amount of micro-nano bubbles, and micro-nano bubble fully mixes rear formation flock with mud, floats up to 2 tops, disengaging zone; Along with long-play, disengaging zone 2 top mud build up, and thickness strengthens gradually, and the superiors' mud scum is ejected the water surface, and water ratio can be reduced to 95～90%, finally by dreg scraper 14, is scraped into scum silica frost groove 4; A small amount of mud sinks to 2 bottoms, disengaging zone, by cleaning shoe 15, is scraped into sludge sump 5; Disengaging zone 2 bottom clear water are evenly introduced outlet canal 3 by effluent collection pipe 8, by the outer row of rising pipe 8.Slowly, after concentrating, sludge scraping enters scum silica frost groove 4 in mud and slag scraping machine 12 runnings, and the mud that will sink is scraped into sludge sump 5, discharges respectively by scum pipe 10 and shore pipe 11, and shore pipe 11 bottom valves 19 are regularly opened, and remove the interior heavy mud of sludge sump 5.
Beneficial effect of the present invention is as follows:
Radial-flow mud air supporting concentrating unit of the present invention, disengaging zone 2 highly adds and is deep to approximately 2.5～5 meters, mud enriched layers are formed on 2 tops, disengaging zone, top layer mud is held out the water surface, mud concentrated effect is better, concentrated after moisture percentage in sewage sludge approximately 95～90%.
Radial-flow mud air supporting concentrating unit of the present invention, the concentrated required dissolved air water amount of mud air supporting is higher than the required dissolved air water amount of sewage air-flotation, and dissolved air water amount is into 50～100% of mud amount.
Radial-flow mud air supporting concentrating unit of the present invention, dissolved air release 13 can be introduced from top, zone of action by dissolved air water water inlet standpipe 18, once dissolved air release 13 stops up, can valve-off 17, single group proposes liquid level and overhauls, and does not affect normal operation, as shown in Figure 1.
Radial-flow mud air supporting concentrating unit of the present invention, from zone of action, 1 bottom tangentially enters mud, and dissolved air water is also introduced 1 bottom in the same way in zone of action, in zone of action, 1 interior formation hoop flows mud, increase contacting of mud and bubble, improved concentrated effect, as shown in Figure 2.
Radial-flow mud air supporting concentrating unit of the present invention, sludge sump 5 is positioned at 2 bottoms, disengaging zone, along with the operation of mud and slag scraping machine 12, can will sink mud and scrape into sludge sump 5, scrape mud effective, and avoid the heavy mud in 2 bottoms, disengaging zone to need regularly the defect of the emptying cleaning of air flotation pool.
Radial-flow mud air supporting concentrating unit of the present invention, outlet canal 3 is positioned at 2 inner sides, disengaging zone, and 3 end of outlet canal outer wall is made 45～60 degree, avoids mud scum dead band, forms heavy mud, affects effluent quality, as shown in Figure 5.
Radial-flow mud air supporting concentrating unit of the present invention, outlet canal 3 is positioned at 2 outsides, disengaging zone, and outlet canal 3 and effluent collection pipe 8 are easy to install, disengaging zone 2 separating effect better effects if, but need twice perforate on pool wall, increased the probability that pool wall leaks, as shown in Figure 6.
Radial-flow mud air supporting concentrating unit of the present invention, effluent collection pipe 8 has many groups, and along disengaging zone, 2 pond bottom annular are arranged; At the bottom of the pond of effluent collection pipe 8, several holes are left in level pipe bottom, and tail end plugs evenly flows downward clear water on the whole section of disengaging zone 2, thereby improve separating effect, improve effluent quality, as shown in accompanying drawing 7～accompanying drawing 8.
Mud can pass through coagulation in advance, can significantly improve air flotation effect; Entering mud does not need second lift, and simple and reliable process is reduced investment outlay and running cost.
Radial-flow mud air supporting concentrating unit of the present invention, is specially adapted to large-scale mud concentration, and unit treatment capacity can reach 40,000 m
3more than/d, this is that other air supporting concentrating unit is unapproachable, and it is low to have cost, and working cost is low, concentrated effect good, can continuous and steady operation, be easy to safeguard, can on-line maintenance etc. outstanding advantages.
Accompanying drawing explanation
The structural representation that accompanying drawing 1 is introduced by top, zone of action for dissolved air release 13 of the present invention,
Accompanying drawing 2 is the newel peripheral-traction structural representation that has of the present invention,
Accompanying drawing 3 is the structural representation that dissolved air water pipe 6 of the present invention is introduced from water inlet pipe 7,
Accompanying drawing 4 is the structural representation without newel center driving of the present invention,
Accompanying drawing 5 is the structural representation that outlet canal 3 of the present invention is positioned at 2 inner sides, disengaging zone,
Accompanying drawing 6 is the structural representation that outlet canal 3 of the present invention is positioned at 2 outsides, disengaging zone,
Accompanying drawing 7 is effluent collection pipe 8 base plane schematic diagram of the present invention,
Accompanying drawing 8 is effluent collection pipe 8 perforate detail drawings of the present invention.
Embodiment
Less for solving conventional sludge concentration device processing power; be difficult to apply to large-scale sludge treatment factory; the problems such as equipment is complicated, failure rate is high, concentrated effect is undesirable, the invention provides a kind of radial-flow mud air supporting concentrating unit, and this system has following outstanding advantages: certainly flow to mud; cost is low; working cost is low, and concentrated effect is good, is easy to safeguard; can continuous and steady operation, can on-line maintenance.Specifically describe by the following examples.
Radial-flow mud air supporting concentrating unit of the present invention is comprised of zone of action 1, disengaging zone 2, outlet canal 3, scum silica frost groove 4, sludge sump 5, dissolved air water water inlet pipe 6, water inlet pipe 7, effluent collection pipe 8, rising pipe 9, scum pipe 10, shore pipe 11, mud and slag scraping machine 12, dissolved air release 13.Wherein mud and slag scraping machine 12, and cleaning shoe 15 is equipped with in bottom, for heavy mud at the bottom of pond is scraped into sludge sump 5, dreg scraper 14 are installed, for water surface scum silica frost is scraped into scum silica frost groove 4 on the water surface; Dissolved air release 13 is introduced 1 bottom, zone of action by dissolved air water; Effluent collection pipe 8 is introduced outlet canal 3 by the clear water of 2 bottoms, disengaging zone.Zone of action 1 is cylindrical, is positioned at the center of circular disengaging zone 2, and outlet canal 3 is positioned at 2 inner sides, disengaging zone or outside, and scum silica frost groove 4 is suspended on the sidewall of disengaging zone 2, and sludge sump 5 is positioned at 2 bottoms, disengaging zone.
By water inlet pipe 7, from zone of action, 1 bottom enters mud, and dissolved air water enters by molten gas water inlet pipe 6, by dissolved air release 13, discharges a large amount of micro-nano bubbles, and micro-nano bubble fully mixes rear formation flock with mud, floats up to 2 tops, disengaging zone; Along with long-play, disengaging zone 2 top mud build up, and thickness strengthens gradually, and the superiors' mud scum is ejected the water surface, and water ratio can be reduced to 95～90%, finally by dreg scraper 14, is scraped into scum silica frost groove 4; A small amount of mud sinks to 2 bottoms, disengaging zone, by cleaning shoe 15, is scraped into sludge sump 5; Disengaging zone 2 bottom clear water are evenly introduced outlet canal 3 by effluent collection pipe 8, by the outer row of rising pipe 8.Slowly, after concentrating, sludge scraping enters scum silica frost groove 4 in mud and slag scraping machine 12 runnings, and the mud that will sink is scraped into sludge sump 5, discharges respectively by scum pipe 10 and shore pipe 11, and shore pipe 11 bottom valves 19 are regularly opened, and remove the interior heavy mud of sludge sump 5.
Shown in accompanying drawing 1～accompanying drawing 8, it is several embodiment of the present invention.
Radial-flow mud air supporting concentrating unit of the present invention, can make steel device structure, as shown in accompanying drawing 1～accompanying drawing 4; Or make concrete basin, as shown in accompanying drawing 5～accompanying drawing 6.
Radial-flow mud air supporting concentrating unit of the present invention, can make peripheral-traction form, and center arranges newel 16, as shown in accompanying drawing 1～accompanying drawing 3; Or make center driving form, as shown in accompanying drawing 4～accompanying drawing 6.
Radial-flow mud air supporting concentrating unit of the present invention, can make ramp type slope aspect sludge sump 5 at the bottom of pond, sludge sump 5 solderless wrapped connection contact areas arrange a circle, as shown in accompanying drawing 1～accompanying drawing 4; Or make plain base, sludge sump 5 is 2 bottom centre positions in disengaging zone, as shown in accompanying drawing 5～accompanying drawing 6.
Radial-flow mud air supporting concentrating unit of the present invention, dissolved air water water inlet pipe 6 can directly enter zone of action, as shown in Figure 2; Or introduce water inlet pipe 7, after fully mixing with mud, enter again, as shown in accompanying drawing 3～accompanying drawing 6.
Radial-flow mud air supporting concentrating unit of the present invention, outlet canal 3 can be located at 2 inner sides, disengaging zone, as shown in Figure 5; Also can be located at 2 outsides, disengaging zone, as shown in Figure 6.
Claims (10)
1. a radial-flow mud air supporting concentrating unit, it is characterized in that, comprise zone of action (1), disengaging zone (2), outlet canal (3), scum silica frost groove (4), sludge sump (5), dissolved air water water inlet pipe (6), water inlet pipe (7), effluent collection pipe (8), rising pipe (9), scum pipe (10), shore pipe (11), mud and slag scraping machine (12), dissolved air release (13).It is characterized in that, described zone of action (1) is right cylinder, disengaging zone (2) is torus, with zone of action (1) concentric, outlet canal (3) is also annular, interior week or the periphery of (2) sidewall in disengaging zone, sludge sump (5) is the bottom of (2) in disengaging zone, and scum silica frost groove (4) is suspended on the sidewall of disengaging zone (2).
2. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, it is characterized in that, disengaging zone (2) highly adds and is deep to approximately 2.5～5 meters, mud enriched layer is formed on top, disengaging zone (2), top layer mud is held out the water surface, mud concentrated effect is better, concentrated rear moisture percentage in sewage sludge approximately 95～90%.
3. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, is characterized in that, the concentrated required dissolved air water amount of mud air supporting is higher than the required dissolved air water amount of sewage air-flotation, and dissolved air water amount is into 50～100% of mud amount, can improve mud concentrated effect.
4. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, it is characterized in that, from zone of action, (1) bottom tangentially enters sewage, dissolved air water is also introduced (1) bottom in the same way in zone of action, sewage forms hoop and flows in zone of action (1), increase contacting of sewage and bubble, improved decontamination effect improving.
5. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, it is characterized in that, outlet canal (3) can be located at the interior week of disengaging zone (2) sidewall, as shown in Figure 1, outlet canal (3) end outer wall is made 45～60 degree, avoid mud scum dead band, form heavy mud, affect effluent quality.
6. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, it is characterized in that, outlet canal (3) can be located at outside, disengaging zone (2), as shown in Figure 2, outlet canal (3) and effluent collection pipe (8) are easy to install, disengaging zone (2) separating effect better effects if, but need twice perforate on pool wall, the probability that pool wall leaks increased.
7. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, it is characterized in that, effluent collection pipe (8) is many groups, along pond bottom annular, arrange, at the bottom of the pond of effluent collection pipe (8), several holes are left in level pipe bottom, and tail end plugs evenly flows downward clear water on the whole section of disengaging zone (2), thereby raising separating effect, improves effluent quality.
8. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, is characterized in that, this device can be made steel device structure or make concrete basin.
9. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, is characterized in that, this device can be made peripheral-traction form, and center arranges newel (16) or makes center driving form.
10. a kind of radial-flow mud air supporting concentrating unit as claimed in claim 1, it is characterized in that, at the bottom of pond, can make ramp type slope aspect sludge sump (5), sludge sump (5) solderless wrapped connection contact area arranges a circle, or make plain base, sludge sump (5) is (2) bottom centre position in disengaging zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094747.3A CN104071963A (en) | 2013-03-25 | 2013-03-25 | Radial-flow air-flotation thickening apparatus for sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094747.3A CN104071963A (en) | 2013-03-25 | 2013-03-25 | Radial-flow air-flotation thickening apparatus for sludge |
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| Publication Number | Publication Date |
|---|---|
| CN104071963A true CN104071963A (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310094747.3A Pending CN104071963A (en) | 2013-03-25 | 2013-03-25 | Radial-flow air-flotation thickening apparatus for sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000629A (en) * | 2015-06-30 | 2015-10-28 | 广州擎天材料科技有限公司 | Suspended matter collecting system |
| CN106698884A (en) * | 2015-08-12 | 2017-05-24 | 王树岩 | Radial-flow type sludge air flotation thickening device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642617A (en) * | 1970-01-29 | 1972-02-15 | Fmc Corp | Foam flotation concentrator |
| US3787316A (en) * | 1970-01-29 | 1974-01-22 | Fmc Corp | Foam flotation concentration of sewage |
| CN1039007A (en) * | 1988-06-30 | 1990-01-24 | “迪格尔门特”法国公司 | The improved device of mud that produces in the water treatment of air supporting thickened waste |
| CN102452695A (en) * | 2010-10-26 | 2012-05-16 | 王树岩 | Radial-flow micro-nano air flotation device |
| CN202265490U (en) * | 2011-10-21 | 2012-06-06 | 无锡海拓环保装备科技有限公司 | Sludge concentration device |
-
2013
- 2013-03-25 CN CN201310094747.3A patent/CN104071963A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642617A (en) * | 1970-01-29 | 1972-02-15 | Fmc Corp | Foam flotation concentrator |
| US3787316A (en) * | 1970-01-29 | 1974-01-22 | Fmc Corp | Foam flotation concentration of sewage |
| CN1039007A (en) * | 1988-06-30 | 1990-01-24 | “迪格尔门特”法国公司 | The improved device of mud that produces in the water treatment of air supporting thickened waste |
| CN102452695A (en) * | 2010-10-26 | 2012-05-16 | 王树岩 | Radial-flow micro-nano air flotation device |
| CN202265490U (en) * | 2011-10-21 | 2012-06-06 | 无锡海拓环保装备科技有限公司 | Sludge concentration device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000629A (en) * | 2015-06-30 | 2015-10-28 | 广州擎天材料科技有限公司 | Suspended matter collecting system |
| CN106698884A (en) * | 2015-08-12 | 2017-05-24 | 王树岩 | Radial-flow type sludge air flotation thickening device |
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Application publication date: 20141001 |