CN107583763A - Speed change fluid bed can digested sludge knockout tower - Google Patents
Speed change fluid bed can digested sludge knockout tower Download PDFInfo
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- CN107583763A CN107583763A CN201710941561.5A CN201710941561A CN107583763A CN 107583763 A CN107583763 A CN 107583763A CN 201710941561 A CN201710941561 A CN 201710941561A CN 107583763 A CN107583763 A CN 107583763A
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- knockout tower
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- fluid bed
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Abstract
Can digested sludge knockout tower the invention discloses a kind of speed change fluid bed, including knockout tower, the sectional area of the inner section of knockout tower from top to bottom tapers into, the bottom of knockout tower is provided with water-locator, the top of water-locator is provided with enters mud pipe, and the top of knockout tower is provided with upper delivery pipe, and the bottom of knockout tower is provided with lower delivery pipe, clear water is uniformly sent into separation tower bottom and the current to upstream is formed in knockout tower by water-locator, and sludge to be separated enters knockout tower from enters mud pipe.The upper flow velocity of knockout tower vertical direction sewage from top to bottom becomes larger the formation speed change fluid bed in knockout tower with the change of sectional area, can digested sludge fluidizing velocity it is low and can not digested sludge fluidizing velocity it is high, by the change in flow pair of speed change fluid bed can digested sludge and indigestible sludge separate, after knockout tower separating treatment in indigestible sludge can the content of digested sludge greatly reduce, so as to improve the dewatering of indigestible sludge.
Description
Technical field
It is specifically remaining dirty come separating treatment sewage treatment plant using fluid bed the present invention relates to a kind of sludge treatment device
In mud can digested sludge separation method and equipment.
Background technology
Excess sludge of municipal sewage plant is accessory substance caused by sewage treatment plant's purification sewage, and it is by organic residual
The extremely complex heterogeneous body of the compositions of the compositions such as piece, inorganic particle and microorganism, World Water environmental organization it be referred to as that " biology is solid
Body ".The processing of excess sludge of municipal sewage plant has become the environmental problem that China is gazed at, and the Chinese government attaches great importance to
Sludge problem, the 13rd five-year plan of national economy propose, accelerate sludge cities and towns treatment facility and pipeline network construction transformation, promote dirty
Mud is innoxious and recycling.
Sludge dewatering is the significant process that specific resistance to filtration is all subjected to, and the quality of dehydrating effect is directly connected to whole
The quality of individual sludge treating system.Research shows, 1 percentage point is often reduced when moisture percentage in sewage sludge is below 78%, wet mud per ton
Subsequent treatment take will reduce more than 1 dollar.
The dewatering of sludge determines the complexity of sludge dewatering, and the good sludge of dewatering is easily dehydrated, dehydration
Operating cost it is low, the moisture percentage in sewage sludge after dehydration is low, and the operating cost of then sludge dewatering in contrast is high, the sludge after dehydration
Moisture content is high.The dewatering of sludge forms decision by sludge particle itself, and Digestive organ matter solid aqueous rate is high, Er Qienan
Dehydration, therefore, if in excess sludge can digested sludge content it is high, the dewatering of sludge is just poor, and dehydration is just difficult, at dehydration
It is just high to manage cost.
The content of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of speed change fluid bed can digested sludge knockout tower, lead to
Crossing can digested sludge and can not in the different fluidisation flow velocitys that speed change fluid bed can be in digested sludge knockout tower using mud granule
Digested sludge is separated.
The present invention is realized in that above-mentioned purpose：
Speed change fluid bed can digested sludge knockout tower, including knockout tower, the sectional area of the inner section of knockout tower be gradual from top to bottom
Diminishing, the bottom of knockout tower is provided with water-locator, and the top of water-locator is provided with enters mud pipe, and the top of knockout tower is provided with upper delivery pipe,
The bottom of knockout tower is provided with lower delivery pipe；Sludge to be separated enters knockout tower from enters mud pipe, and clear water is uniformly sent into by water-locator
Separation tower bottom simultaneously forms upward current in knockout tower, and sludge is in the presence of upper current with knockout tower vertical direction
Area of section change to form the speed change fluid bed that flow velocity tapers into from the bottom to top so that flow velocity is low digests for fluidisation
Mud granule stays in the top of knockout tower and discharges knockout tower, the high indigestible sludge of fluidisation flow velocity by upper delivery pipe
Particle stays in the bottom of knockout tower and discharges knockout tower by lower delivery pipe.
Wherein, the void tower flow velocity of separation column is less than 2m/h, and the void tower flow velocity for separating tower bottom is less than 10m/h.
Wherein, the clear water of water-locator into knockout tower is less than 20mg/L containing concentration of suspension.
Wherein, separation reaction time of the sludge in knockout tower is 0.5-8 hours.
Beneficial effects of the present invention：Because the sectional area of the inner section of knockout tower from top to bottom tapers into, corresponding point
Upper flow velocity from tower vertical direction current forms speed change as the change of sectional area from top to bottom becomes larger in knockout tower
Fluid bed, can digested sludge fluidisation flow velocity it is low and can not digested sludge fluidisation flow velocity it is high, pass through the flow velocity of speed change fluid bed
Change can digested sludge and indigestible sludge realize separation, can disappear in the indigestible sludge after knockout tower separating treatment
The content for changing sludge greatly reduces, so as to improve the dewatering of indigestible sludge.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of the present invention.
In figure, delivery pipe on 1.；2. enters mud pipe；3. water inlet pipe；4. lower delivery pipe；5. water-locator.
Embodiment
As shown in figure 1, speed change fluid bed can digested sludge knockout tower, including knockout tower, the section of the inner section of knockout tower
Product from top to bottom tapers into, and the bottom of knockout tower is provided with water-locator 5, and the top of water-locator 5 is provided with enters mud pipe 2, knockout tower
Top is provided with upper delivery pipe 1, and the bottom of knockout tower is provided with lower delivery pipe 4；Sludge to be separated enters knockout tower from enters mud pipe 2,
Clear water enters knockout tower by water inlet pipe 3, water-locator 5 clear water is uniformly sent into separation tower bottom and formed in knockout tower to
On current, sludge to form flow velocity by up in the presence of upper current and as the sectional area of knockout tower vertical direction changes
Under the speed change fluid bed that becomes larger so that fluidisation flow velocity it is low can digested sludge particle stay in the top of knockout tower
And knockout tower is discharged by upper delivery pipe 1, the high indigestible mud granule of fluidisation flow velocity stays in the bottom of knockout tower simultaneously
Knockout tower is discharged by lower delivery pipe 4.Because the inner section product of knockout tower from top to bottom tapers into, corresponding knockout tower is vertical
The upper flow velocity in direction from top to bottom becomes larger the formation speed change fluid bed in knockout tower with the change of sectional area, can digest
The fluidisation flow velocity of sludge it is low and can not digested sludge fluidisation flow velocity it is high, can be disappeared by the fluidisation change in flow of speed change fluid bed
Change sludge and indigestible sludge and realize separation, in the indigestible sludge after knockout tower separating treatment can digested sludge contain
Amount greatly reduces, so as to improve the dewatering of indigestible sludge.Agitating device is not set in whole knockout tower, is not loaded
Material, it is simple in construction and be easily achieved.
Using mud granule fluidisation state isolation technics pair can digested sludge and indigestible sludge separate, make through undue
From in the indigestible sludge of processing can digested sludge concentration be less than 5%, the dewatering of indigestible sludge is improved, through machinery
The moisture content of sludge is less than 60% after dewater treatment, while also reduces excess sludge dewater treatment amount 40%.
Using mud granule fluidisation state isolation technics pair can digested sludge and indigestible sludge separate, make through undue
Indigestible sludge concentration can be less than 7.5% in digested sludge from processing, raising can digested sludge concentration, reduce sludge digestion
Treating capacity more than 60%, residence time of the increase sludge in digester（SRT）And the reaction time.
Think that below equation can meet to design knockout tower dischargeable capacity and upper and lower sectional area through studying and testing applicant
Requirement：
V = W/ t───（1）
In formula：The dischargeable capacity m of V-knockout tower3；
W-excess sludge fractional dose m3（Moisture content 98% -97%）/h；
T-separation reaction time h.
（1）Separation reaction time t in formula is different and different with the composition of separated processing sludge, for municipal sewage treatment
Plant excess sludge,（1）Separation reaction time t in formula is 3h.
S1=（Q+W）/v1─── （2）
In formula：S1- separation column sectional area m2；
Q-clear water flow m3/h；
W-excess sludge fractional dose m3（Moisture content 98% -97%）/h；
v1- separation column sewage void tower flow velocity m/h.
（2）Knockout tower top sewage void tower flow velocity in formula is different and different with the composition of separated processing sludge, for city
City's sewage disposal plant excess sludge,（2）Separation top sewage void tower flow velocity v in formula1For 1m/h.
S2 = Q /v2─── （3）
In formula：S2- accumulate m in knockout tower bottom section2；
Q-clear water flow m3/h；
v2- separation tower bottom clear water void tower flow velocity m/h.
（3）Separation column clear water void tower flow velocity v in formula2For 4m/h.
Claims (4)
1. speed change fluid bed can digested sludge knockout tower, it is characterised in that：Including knockout tower, the sectional area of the inner section of knockout tower
From top to bottom taper into, the bottom of knockout tower is provided with water-locator（5）, water-locator（5）Top be provided with enters mud pipe（2）, separation
The top of tower is provided with upper delivery pipe（1）, the bottom of knockout tower is provided with lower delivery pipe（4）；Sludge to be separated is from enters mud pipe（2）Enter
Enter knockout tower, water-locator（5）Clear water is uniformly sent into separation tower bottom and upward current are formed in knockout tower, sludge exists
In the presence of current and as the area of section of knockout tower vertical direction changes the speed change to form flow velocity and taper into from the bottom to top
Fluid bed so that fluidisation flow velocity it is low can digested sludge particle stay in the top of knockout tower and discharged by delivery pipe
Knockout tower, the high indigestible mud granule of fluidisation flow velocity stay in the bottom of knockout tower and by lower delivery pipe（4）Discharge
Knockout tower.
2. speed change fluid bed according to claim 1 can digested sludge knockout tower, it is characterised in that：The sky of separation column
Tower flow velocity is less than 2m/h, and the void tower flow velocity for separating tower bottom is less than 10m/h.
3. speed change fluid bed according to claim 1 can digested sludge knockout tower, it is characterised in that：Water-locator（5）Into
The clear water of knockout tower is less than 20mg/L containing concentration of suspension.
4. speed change fluid bed according to claim 1 can digested sludge knockout tower, it is characterised in that：Sludge is in knockout tower
The separation reaction time be 0.5-8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710941561.5A CN107583763A (en) | 2017-10-11 | 2017-10-11 | Speed change fluid bed can digested sludge knockout tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710941561.5A CN107583763A (en) | 2017-10-11 | 2017-10-11 | Speed change fluid bed can digested sludge knockout tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107583763A true CN107583763A (en) | 2018-01-16 |
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ID=61052889
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710941561.5A Pending CN107583763A (en) | 2017-10-11 | 2017-10-11 | Speed change fluid bed can digested sludge knockout tower |
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| CN1450003A (en) * | 2003-04-24 | 2003-10-22 | 李冲 | Batch circulated upflow sludge bed organic waste water treatment process |
| CN102432103A (en) * | 2011-10-31 | 2012-05-02 | 太原大学 | Integrated coking wastewater/excess sludge synchronous treatment method and treatment device |
| CN102515348A (en) * | 2011-12-14 | 2012-06-27 | 杭州师范大学 | Operating method for high-efficient anaerobic ammonium oxidation reactor |
| CN204911750U (en) * | 2015-08-21 | 2015-12-30 | 河南省亚龙超硬材料有限公司 | Material machine is washed to diamond micropowder overflow formula |
| CN205042592U (en) * | 2015-09-22 | 2016-02-24 | 中国矿业大学 | Prevent solid fluidized bed of three novel product liquid that stop up |
| CN205361690U (en) * | 2015-12-24 | 2016-07-06 | 中国地质科学院郑州矿产综合利用研究所 | Hydraulic classification desliming cylinder for bauxite |
| CN105859085A (en) * | 2016-06-14 | 2016-08-17 | 轻工业环境保护研究所 | Cone-shaped anaerobic reactor |
| CN106186300A (en) * | 2015-05-08 | 2016-12-07 | 廖华平 | A kind of compound anaerobic reactor of the high load capacity for processing higher suspension solid material |
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2017
- 2017-10-11 CN CN201710941561.5A patent/CN107583763A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450003A (en) * | 2003-04-24 | 2003-10-22 | 李冲 | Batch circulated upflow sludge bed organic waste water treatment process |
| CN102432103A (en) * | 2011-10-31 | 2012-05-02 | 太原大学 | Integrated coking wastewater/excess sludge synchronous treatment method and treatment device |
| CN102515348A (en) * | 2011-12-14 | 2012-06-27 | 杭州师范大学 | Operating method for high-efficient anaerobic ammonium oxidation reactor |
| CN106186300A (en) * | 2015-05-08 | 2016-12-07 | 廖华平 | A kind of compound anaerobic reactor of the high load capacity for processing higher suspension solid material |
| CN204911750U (en) * | 2015-08-21 | 2015-12-30 | 河南省亚龙超硬材料有限公司 | Material machine is washed to diamond micropowder overflow formula |
| CN205042592U (en) * | 2015-09-22 | 2016-02-24 | 中国矿业大学 | Prevent solid fluidized bed of three novel product liquid that stop up |
| CN205361690U (en) * | 2015-12-24 | 2016-07-06 | 中国地质科学院郑州矿产综合利用研究所 | Hydraulic classification desliming cylinder for bauxite |
| CN105859085A (en) * | 2016-06-14 | 2016-08-17 | 轻工业环境保护研究所 | Cone-shaped anaerobic reactor |
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