CN102079553B - Shallow layer flotation machine for industrial wastewater treatment and treatment process thereof - Google Patents
Shallow layer flotation machine for industrial wastewater treatment and treatment process thereof Download PDFInfo
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- CN102079553B CN102079553B CN2010105740428A CN201010574042A CN102079553B CN 102079553 B CN102079553 B CN 102079553B CN 2010105740428 A CN2010105740428 A CN 2010105740428A CN 201010574042 A CN201010574042 A CN 201010574042A CN 102079553 B CN102079553 B CN 102079553B
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Abstract
The invention relates to a shallow layer flotation machine for industrial wastewater treatment and a treatment process thereof. The shallow layer flotation machine in the invention comprises a slag-discharging barrel, a weir plate, a rotary central barrel, water distribution baffles, a rotary water inlet header pipe, rotary water inlet branch pipes, a rotary skimming device and a flotation machine barrel, wherein the slag-discharging barrel is at the geometric center of the flotation machine barrel; the rotary central barrel is on the outside of the slag-discharging barrel; the weir plate is arranged between the slag-discharging barrel and the rotary central barrel; the water distribution baffles are arranged between the rotary central barrel and the flotation machine barrel; the rotary water inlet header pipe penetrates through the slag-discharging barrel and extends to the water distribution baffles; the rotary water inlet branch pipes are connected with the rotary water inlet header pipe and extends between the water distribution baffles; the rotary skimming device is arranged on the upper part of the water distribution baffles; and the rotary central barrel, the rotary water inlet header pipe, the rotary water inlet branch pipes and the rotary skimming device are fixed on a central support which can drive the devices to perform rotary motion around the center; and the central support is connected with an electric motor. The shallow layer flotation machine in the invention integrates the functions of flocculation, flotation, skimming, precipitation, scraping and the like; and the treatment process in the invention has the advantages of higher separation efficiency, short residence time and small pool volume.
Description
Technical field
The present invention is a kind of shallow air-floatation machine and treatment process thereof that is used for Industrial Wastewater Treatment, belongs to the shallow air-floatation machine that is used for Industrial Wastewater Treatment and the renovation technique of treatment process thereof.
Background technology
Suspended substance is a kind of pollutent common in the trade effluent, mainly is to cause the physical water pollution, as influences the transparency of water body, reduces the photosynthesis of algae in the water, slows down water-bed activity etc.The suspended substance bigger than water for density can remove with the precipitator method, density near or generally can adopt air floating method to separate removal less than the suspended substance of water.But be some tiny fibers, xylogen and dyestuff etc. like the suspended substance in paper waste, the trade effluent such as spraying waste water etc., problem such as traditional air flotation pool is handled this type waste water, and not only separation efficiency is lower, and exists the residence time long, and the pond body bulk is big.
Summary of the invention
The objective of the invention is to consider the problems referred to above and a kind of quick, efficient, practical shallow air-floatation machine that is used for Industrial Wastewater Treatment is provided.
Another object of the present invention is to provide a kind of separation efficiency higher, the residence time is short, the treatment process that is used for Industrial Wastewater Treatment that the pond body bulk is little.
Technical scheme of the present invention is: the shallow air-floatation machine that is used for trade effluent air supporting processing of the present invention; Include deslagging tube, the weir plate that can access the water liquid level, rotation center tube, water distribution dividing plate, rotation water inlet manifold, rotation water inlet arm, rotation skimmer device, center bearing bracket, phonomoter, air supporting machine drum body; Wherein the deslagging tube is positioned at the geometric centre of air supporting machine drum body; The rotation center tube places the outside of deslagging tube, and the weir plate that can access the water liquid level places between deslagging tube and the rotation center tube, and the water distribution dividing plate is installed between rotation center tube and the air supporting machine drum body; The rotation water inlet manifold passes from the deslagging tube and extends on the water distribution dividing plate; Rotation water inlet arm is connected with the rotation water inlet manifold, and extends between the water distribution dividing plate, and the rotation skimmer device is located at the top of water distribution dividing plate; Rotation center tube, rotation water inlet manifold, rotation water inlet arm, rotation skimmer device all are fixed on and can drive on its center bearing bracket that rotates around the center, and center bearing bracket is connected with phonomoter.
The speed of rotation that above-mentioned rotation water inlet arm rotates around hub is Ve, and waste water is Vr from rotation water inlet arm take-off rate, and two velocity reversals are opposite, equal and opposite in direction; Clear water take-off rate with the synchronous rotation center tube that rotates of rotation water inlet arm is zero with respect to the speed of rotating the water inlet arm.
The present invention is used for the treatment process of the shallow air-floatation machine of Industrial Wastewater Treatment, comprises the steps:
The waste water of 1) coming from the workshop is earlier through grid, tackle to get into equalizing tank after flowing into the settling pit preliminary sedimentation behind the bigger foreign material, and waste water removes a part and is prone to heavy impurity in equalizing tank, and plays the purpose of adjusting water quality and quantity;
2) waste water that comes out from equalizing tank through the water pump pump to the shallow air-floatation machine;
3) waste water progressively forms flco under the effect of coagulating agent, and under the flocculation agent effect, flco progressively increases and becomes big alumen ustum; Waste water further mixes with pressure air-dissolving; Connect in rotation water inlet manifold, the rotation water inlet arm entering air supporting machine water distribution dividing plate through swivel joint, the speed of rotation that rotation water inlet arm rotates around hub is Ve, and waste water is Vr from rotation water inlet arm take-off rate; Two velocity reversals are opposite, equal and opposite in direction; Clear water take-off rate with the synchronous rotation center tube that rotates of rotation water inlet arm is zero with respect to the speed of rotating the water inlet arm; Water to pool wall speed near zero-speed; Water in the pond does not have stirring, makes particle in the water in static float downward or sedimentation, under the effect of dissolving gas; Degree of purification is high, and the suspended substance removal rate reaches more than 91%; On the suspended substance that carries bubble is bubbled through the water column gradually; Through the rotation skimmer device scum silica frost is entered in the deslagging tube; Enter sludge thickener then, clear water gets into the rotation center tube through rotation center tube middle part and can access the circle ring area of the weir plate composition of water liquid level, and clear water can access the weir plate of water liquid level and the circle ring area that the deslagging tube is formed through the weir plate inflow that can regulate liquid level again; Final most suspended substance and insoluble organism, the qualified discharge removed;
4) scum silica frost of waste water after the shallow air-floatation machine is handled scraped into sludge bucket automatically and sent into sludge thickener, and mud scrapes sludge drying bed after pressure filter concentrates in sludge thickener, and mud is done the back outward transport; The clear liquid of waste water after the shallow air-floatation machine is handled gets into clean water basin after siphon filter filters, water up to standard in the clean water basin can reuse or directly discharging.
Above-mentioned steps 2) waste water through the water pump pump before the shallow air-floatation machine, dosing coagulant PAC in equalizing tank adds flocculation agent PAM at the shallow air-floatation machine behind the pump.
The present invention is owing to be employed on the theoretical basis of traditional air supporting; " zero-speed principle " and " shallow pool theory " have successfully been used; Collecting flocculation, air supporting, skimming, precipitating and scrape multinomial functions such as slag in the structure of one, is a kind of quick, efficient, practical shallow air-floatation machine that is used for Industrial Wastewater Treatment.The treatment process separation efficiency that is used for Industrial Wastewater Treatment of the present invention is higher, and the residence time is short, and the pond body bulk is little.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the schematic diagram of the utility model;
Fig. 3 is a process flow sheet of the present invention.
Embodiment
Embodiment:
Structural representation of the present invention is as shown in Figure 1; The shallow air-floatation machine that is used for trade effluent air supporting processing of the present invention; Include deslagging tube 1, can access weir plate 2, rotation center tube 3, water distribution dividing plate 4, rotation water inlet manifold 5, rotation water inlet arm 51, rotation skimmer device 6, center bearing bracket 7, phonomoter 8, the air supporting machine drum body 9 of water liquid level; Wherein deslagging tube 1 is positioned at the geometric centre of air supporting machine drum body 9; Rotation center tube 3 places the outside of deslagging tube 1, and the weir plate 2 that can access the water liquid level places between deslagging tube 1 and the rotation center tube 3, and water distribution dividing plate 4 is installed between rotation center tube 3 and the air supporting machine drum body 9; Rotation water inlet manifold 5 passes from deslagging tube 1 and extends on the water distribution dividing plate 4; Rotation water inlet arm 51 is connected with rotation water inlet manifold 5, and extends between the water distribution dividing plate 4, and rotation skimmer device 6 is located at the top of water distribution dividing plate 4; Rotation center tube 3, rotation water inlet manifold 5, rotation water inlet arm 51, rotation skimmer device 6 all are fixed on and can drive on its center bearing bracket 7 that rotates around the center, and center bearing bracket 7 is connected with phonomoter 8.
The speed of rotation that above-mentioned rotation water inlet arm 51 rotates around hub is Ve, and waste water is Vr from rotation water inlet arm 51 take-off rate, and two velocity reversals are opposite, equal and opposite in direction; Clear water take-off rate with the rotation water inlet arm 51 synchronous rotation center tubes 3 that rotate is zero with respect to the speed of rotating water inlet arm 51.
The present invention is used for the treatment process of the shallow air-floatation machine of Industrial Wastewater Treatment, comprises the steps:
The waste water of 1) coming from the workshop is earlier through grid, tackle to get into equalizing tank after flowing into the settling pit preliminary sedimentation behind the bigger foreign material, and waste water removes a part and is prone to heavy impurity in equalizing tank, and plays the purpose of adjusting water quality and quantity;
2) waste water that comes out from equalizing tank through the water pump pump to the shallow air-floatation machine;
3) waste water progressively forms flco under the effect of coagulating agent, and under the flocculation agent effect, flco progressively increases and becomes big alumen ustum; Waste water further mixes with pressure air-dissolving; Connect in rotation water inlet manifold 5, the rotation water inlet arm 51 entering air supporting machine water distribution dividing plates 4 through swivel joint, the speed of rotation that rotation water inlet arm 51 rotates around hub is Ve, and waste water is Vr from rotation water inlet arm 51 take-off rate; Two velocity reversals are opposite, equal and opposite in direction; Clear water take-off rate with the rotation water inlet arm 51 synchronous rotation center tubes 3 that rotate is zero with respect to the speed of rotating water inlet arm 51; Water to pool wall speed near zero-speed; Water in the pond does not have stirring, makes particle in the water in static float downward or sedimentation, under the effect of dissolving gas; Degree of purification is high, and the suspended substance removal rate reaches more than 91%; On the suspended substance that carries bubble is bubbled through the water column gradually; Through rotation skimmer device 6 scum silica frost is entered in the deslagging tube 1; Enter sludge thickener then, clear water gets into rotation center tube 3 through rotation center tube 3 middle parts and can access the circle ring area of weir plate 2 compositions of water liquid level, and clear water can access the weir plate 2 of water liquid level and the circle ring area that deslagging tube 1 is formed through weir plate 2 inflows that can regulate liquid level again; Final most suspended substance and insoluble organism, the qualified discharge removed;
4) scum silica frost of waste water after the shallow air-floatation machine is handled scraped into sludge bucket automatically and sent into sludge thickener, and mud scrapes sludge drying bed after pressure filter concentrates in sludge thickener, and mud is done the back outward transport; The clear liquid of waste water after the shallow air-floatation machine is handled gets into clean water basin after siphon filter filters, water up to standard in the clean water basin can reuse or directly discharging.
In the present embodiment, above-mentioned steps 2) waste water through the water pump pump before the shallow air-floatation pond, dosing coagulant PAC in equalizing tank adds flocculation agent PAM at the shallow air-floatation machine behind the pump.
The principle of work of shallow air-floatation machine of the present invention is to utilize the air supporting principle to carry out work; Air flotation technology is that air is fed in the water with the micro-bubble form; Add flocculation agent or flotation agent simultaneously, micro-bubble and the tiny suspended particle in water are adhered to, form water-gas-particle three-phase mixed system; Particle adhesion is behind bubble, and density can float to water surface formation scum layer less than water and from water, separated.Shallow air-floatation machine of the present invention is on the basis of traditional air supporting theory; " zero-speed principle " and " shallow pool theory " have successfully been used; Collecting flocculation, air supporting, skimming, precipitating and scrape multinomial functions such as slag in one, is a kind of quick, efficient, practical water treating equipment.The zero-speed principle is as shown in Figure 2, and the speed that water distributor 4 rotates around hub is VE, and waste water is Vr from water distributor 4 take-off rate, and two velocity reversals are opposite, equal and opposite in direction.So the absolute velocity vector V a=Ve+Vr=0 of waste water, the waste water that promptly gets into air flotation pool is in relative static conditions basically, and header 5 also rotates with water distributor 4 synchronously, and the clear water take-off rate is zero with respect to the speed of header 5, has realized static water outlet.The rotation of water distributor 4 and water inlet and water outlet all can not make the up-down of suspended substance under a kind of static relatively situation, carry out to the water generates disturbance of Central Plains, pond basically, and Here it is so-called " zero-speed principle ".Because the application of " zero-speed principle "; The ascent rate of suspended substance reaches or approaching theoretical ascent rate; Greatly improved processing efficiency; Make the residence time of waste water in air flotation pool shorten to 3min by traditional 30-60min, the available depth of air flotation pool only needs 400mm just can reach good decontamination effect improving, and Here it is so-called " shallow pool theory ".
Table 1 is for using the effect of all kinds of waste water of high-efficient shallow air flotation apparatus processes.
This shows that the suspended substance removal rate that all kinds of waste water can reach 90-95% is handled in this shallow air-floatation pond, the chroma removal rate more than the organic removal rate of 60-75% and 80%.
Claims (3)
1. shallow air-floatation machine that is used for Industrial Wastewater Treatment; It is characterized in that including deslagging tube (1), can access weir plate (2), rotation center tube (3), water distribution dividing plate (4), rotation water inlet manifold (5), rotation water inlet arm (51), rotation skimmer device (6), center bearing bracket (7), phonomoter (8), the air supporting machine drum body (9) of water liquid level; Wherein deslagging tube (1) is positioned at the geometric centre of air supporting machine drum body (9); Rotation center tube (3) places the outside of deslagging tube (1); The weir plate (2) that can access the water liquid level places between deslagging tube (1) and the rotation center tube (3); Water distribution dividing plate (4) is installed between rotation center tube (3) and the air supporting machine drum body (9), and rotation water inlet manifold (5) passes from deslagging tube (1) and extends on the water distribution dividing plate (4), and rotation water inlet arm (51) is connected with rotation water inlet manifold (5); And extend between the water distribution dividing plate (4); Rotation skimmer device (6) is located at the top of water distribution dividing plate (4), and rotation center tube (3), rotation water inlet manifold (5), rotation water inlet arm (51), rotation skimmer device (6) all are fixed on and can drive on its center bearing bracket that rotates around the center (7), and center bearing bracket (7) is connected with phonomoter (8).
2. the shallow air-floatation machine that is used for Industrial Wastewater Treatment according to claim 1; It is characterized in that the speed of rotation that above-mentioned rotation water inlet arm (51) rotates around hub is Ve; Waste water is Vr from rotation water inlet arm (51) take-off rate, and two velocity reversals are opposite, equal and opposite in direction; Clear water take-off rate with the synchronous rotation center tube (3) that rotates of rotation water inlet arm (51) is zero with respect to the speed of rotating water inlet arm (51).
3. a treatment process that is used for the shallow air-floatation machine of Industrial Wastewater Treatment according to claim 1 is characterized in that comprising the steps:
The waste water of 1) coming from the workshop is earlier through grid, tackle to get into equalizing tank after flowing into the settling pit preliminary sedimentation behind the bigger foreign material, and waste water removes a part and is prone to heavy impurity in equalizing tank, and plays the purpose of adjusting water quality and quantity;
2) waste water that comes out from equalizing tank through the water pump pump to the shallow air-floatation machine, waste water through the water pump pump before the shallow air-floatation machine, dosing coagulant PAC in equalizing tank adds flocculation agent PAM at the shallow air-floatation machine behind the pump;
3) waste water progressively forms flco under the effect of coagulating agent, and under the flocculation agent effect, flco progressively increases and becomes big alumen ustum; Waste water further mixes with pressure air-dissolving; Connect in rotation water inlet manifold (5), rotation water inlet arm (51) the entering air supporting machine water distribution dividing plate (4) through swivel joint, the speed of rotation that rotation water inlet arm (51) rotates around hub is Ve, and waste water is Vr from rotation water inlet arm (51) take-off rate; Two velocity reversals are opposite, equal and opposite in direction; Clear water take-off rate with the synchronous rotation center tube (3) that rotates of rotation water inlet arm (51) is zero with respect to the speed of rotating water inlet arm (51); Water to pool wall speed near zero-speed; Water in the pond does not have stirring, makes particle in the water in static float downward or sedimentation, under the effect of dissolving gas; Degree of purification is high, and the suspended substance removal rate reaches more than 91%; On the suspended substance that carries bubble is bubbled through the water column gradually; Through rotation skimmer device (6) scum silica frost is entered in the deslagging tube (1); Enter sludge thickener then, the circle ring area that clear water is formed through rotation center tube (3) middle part entering rotation center tube (3) and the weir plate (2) that can access the water liquid level, clear water can access the weir plate (2) of water liquid level and the circle ring area of deslagging tube (1) composition through weir plate (2) inflow that can regulate liquid level again; Final most suspended substance and insoluble organism, the qualified discharge removed;
4) scum silica frost of waste water after the shallow air-floatation machine is handled scraped into sludge bucket automatically and sent into sludge thickener, and mud scrapes sludge drying bed after pressure filter concentrates in sludge thickener, and mud is done the back outward transport; The clear liquid of waste water after the shallow air-floatation machine is handled gets into clean water basin after siphon filter filters, water up to standard in the clean water basin can reuse or directly discharging.
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| CN2010105740428A CN102079553B (en) | 2010-12-02 | 2010-12-02 | Shallow layer flotation machine for industrial wastewater treatment and treatment process thereof |
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| CN2010105740428A CN102079553B (en) | 2010-12-02 | 2010-12-02 | Shallow layer flotation machine for industrial wastewater treatment and treatment process thereof |
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| CN102079553B true CN102079553B (en) | 2012-11-14 |
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| CN102381738A (en) * | 2011-09-20 | 2012-03-21 | 扬州市天龙环保设备有限公司 | Shallow air-floatation dissolved air releasing system |
| CN104230058A (en) * | 2014-09-25 | 2014-12-24 | 滁州友林科技发展有限公司 | Shallow air-floatation sewage treatment device |
| CN104310720A (en) * | 2014-11-12 | 2015-01-28 | 福建农正鸿发纸业有限责任公司 | Method for treating paper-making wastewater |
| CN104386791B (en) * | 2014-12-01 | 2016-04-06 | 哈尔滨工业大学 | A kind of radial-flow sink-float pond |
| CN105645500B (en) * | 2016-03-22 | 2018-08-14 | 中国铁路设计集团有限公司 | Efficient air-floating processing equipment |
| FR3049197B1 (en) * | 2016-03-24 | 2020-04-10 | Kwi International Environmental Treatment Gmbh | DISSOLVED AIR FLOAT |
| CN105905970A (en) * | 2016-06-18 | 2016-08-31 | 安徽中环环保科技股份有限公司 | Automatic gelatin waste water drossing device applied to gas floatation clarifier |
| CN106745912A (en) * | 2017-04-11 | 2017-05-31 | 无锡沪东麦斯特环境科技股份有限公司 | A kind of air supporting sand considers all-in-one |
| CN110372058A (en) * | 2019-06-25 | 2019-10-25 | 安溪坤祁德机械科技有限公司 | A kind of molten treatment apparatus of waste water based on secondary treatment |
| CN111003847B (en) * | 2019-12-27 | 2022-04-08 | 贵州赤天化纸业股份有限公司 | Paper pulp wastewater treatment processing method |
| CN113620554A (en) * | 2020-05-08 | 2021-11-09 | 无锡蓝湾资源再生科技有限公司 | Comprehensive treatment system for dredging and drying river channel |
| CN111960589A (en) * | 2020-09-15 | 2020-11-20 | 四川川宇环保科技有限公司 | Shallow air floatation device, sewage treatment system and method |
| CN113321262B (en) * | 2021-07-01 | 2022-12-23 | 福建永丰针纺有限公司 | Coagulation air flotation method suitable for textile printing and dyeing wastewater treatment |
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| KR100794324B1 (en) * | 2005-08-09 | 2008-01-11 | 이희권 | Dissolved Air Flotation System |
| JP4760398B2 (en) * | 2006-01-25 | 2011-08-31 | 栗田工業株式会社 | Pressure levitation device |
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| US3773179A (en) * | 1971-09-28 | 1973-11-20 | Pollution Control Engineering | Apparatus for treating waste fluids by means of dissolved gases |
| CN2146479Y (en) * | 1992-11-25 | 1993-11-17 | 上海师范大学 | Air-float separator |
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Denomination of invention: A shallow air flotation machine for industrial wastewater treatment and its treatment process Effective date of registration: 20210608 Granted publication date: 20121114 Pledgee: China Co. truction Bank Corp Guangzhou economic and Technological Development Zone sub branch Pledgor: VISION ENVIRONMENT (GUANGZHOU) Co.,Ltd. Registration number: Y2021980004501 |
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