CN103819068B - Sludge ozonation reaction tank - Google Patents
Sludge ozonation reaction tank Download PDFInfo
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- CN103819068B CN103819068B CN201410072994.8A CN201410072994A CN103819068B CN 103819068 B CN103819068 B CN 103819068B CN 201410072994 A CN201410072994 A CN 201410072994A CN 103819068 B CN103819068 B CN 103819068B
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- aeration
- lower wall
- sludge
- upper dish
- ozone
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Abstract
The invention relates to a sludge ozonation reaction tank. The sludge ozonation reaction tank comprises a tank body, an upper cover and a stirring device. The stirring device comprises stirring disks, a rotating shaft and a driving mechanism. An ozone inlet channel is disposed in the rotating shaft along the axial direction. Each stirring disk comprises an upper disk and a lower disk which are fixed to each other. The upper disks and the lower disks are provided with ozone outlet channels and aeration ports. Each aeration port is provided with an aeration head. Each aeration head comprises a sleeve, a rigid net, an elastic soft membrane and an annular hold hoop. The end with a smaller cross section of each sleeve protrudes out of the outer surface of the corresponding upper disk or the outer surface of the corresponding lower disk. Each rigid net is disposed at the end surface of the protruding end of the corresponding sleeve. Each elastic soft membrane covers the corresponding rigid net and is fixed to the protruding end of the corresponding sleeve through the corresponding annular hold hoop. Each elastic soft membrane is provided with at least one cross kerf. The outer surfaces of the elastic soft membranes are fully exposed in the tank body. Aeration is performed under a stirring state so that sludge and the ozone are fully contacted. The aeration heads can suit stirring conditions well and achieve better aeration and backflow prevention functions.
Description
Technical field
The present invention relates to a kind of sludge ozonation retort.
Background technology
In national standard " urban wastewater treatment firm sludge treatment blended landfill shale " (GB/T 23485-2009) when regulation mud and domestic garbage mixing landfill, moisture percentage in sewage sludge should be less than 60%.Existing sludge dewatering treatment device is generally made up of sludge delivery pump and Chamber Type Diaphragm Filter Press, and the mud of the moisture content 99% that sewage treatment plant produces directly pumps into Chamber Type Diaphragm Filter Press and carries out filter-press dehydration process, and this device can reach the requirement of above-mentioned standard substantially.But the mud of moisture content 99% is directly sent into Chamber Type Diaphragm Filter Press, without any predrainage by this device, dehydrating amount is large, makes the live load that filter press keeps huge, and the long-term large load operation of filter press, easily be out of order, also make filter-press dehydration effect unstable.In addition, which also only can reach above-mentioned national standard substantially, can't obtain more excellent dehydrating effect.
The main cause of the problems referred to above is caused to be: to be formed " viscose glue phase region " between the microbial cell in the excess sludge that sewage treatment plant produces and organic colloid, a large amount of Interstitial Water can be wrapped, and containing a large amount of cellular water in microbial cell, and these moisture are difficult to be squeezed out by the mode of mechanical dehydration.For solving the problem, first primary sludge fully can be contacted with ozone before existing sludge dewatering treatment, carrying out ozonization, destroy " viscose glue phase region ", Interstitial Water and cellular water are discharged, forms the free water easily removed, be convenient to subsequent handling and remove.
Existing sludge ozone gasifying device, as name is called " air lift type internal-external double circulation ozone sludge haptoreaction device ", publication number is for disclosed in the Chinese invention patent of " 102583936 ", ozone reaction tank is designed to common spray column structure, mud is fallen utilization from eminence open foraminate water conservancy diversion plate washer and mud is become vaporific spill, bottom utilizes aeration plate to spray ozone, make ozone and mud haptoreaction, simultaneously bottom is provided with reflux pump and mud pumpback is again fallen to top, repeatedly contact with ozone to realize mud, to being effective, but because this design ozone cannot be full of reaction unit entirety, ozone is contacted insufficient with mud, overall ozone oxidation effect is also bad.Another name is called " Ozonization sludge decrement system ", publication number is the Chinese invention patent of " 102910794 ", in order to improve the utilization rate of ozone, be provided with two-stage ozone reaction pond, although extend the time of contact of ozone and mud, but because mud remains static substantially in reaction tank, so the contact of ozone and mud insufficient, cause the effect of overall mud decrement bad.
Summary of the invention
The present invention is directed to deficiency of the prior art, provide a kind of mud and carry out aeration under stirring, make the contact of mud and ozone more abundant; Aeration head can adapt to stirring better, more easily change, and realizes the sludge ozonation retort of aeration and reverse-filling function better.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
A kind of sludge ozonation retort, comprise tank body, upper cover and agitating device, described tank body top is provided with mud import, and bottom is provided with sludge outlet; Described agitating device comprises agitator disk, rotating shaft and driving mechanism; Be provided with ozone inlet channel vertically in described rotating shaft, the top of rotating shaft is positioned at the top of upper cover and is connected with driving mechanism, and the middle and lower part of rotating shaft is positioned at tank body and is fixedly connected with at least one agitator disk; Described agitator disk comprises the upper dish and lower wall that are fixedly linked, is provided with the ozone outlet passageway be communicated with ozone inlet channel between described upper dish and lower wall, described upper dish with lower wall is equipped with the aeration opening be communicated with ozone outlet passageway; The cross section of described aeration opening is waist-shaped hole shape, and aeration opening cross section from the inside to the outside reduces gradually, and aeration opening is provided with aeration head; Described aeration head comprises sleeve, hard net, elastic soft film and annular anchor ear, the shape of described sleeve outer wall and the mating shapes of aeration opening inwall, the outer surface of dish or lower wall is stretched out in one end that described sleeve cross section is less, the end face of sleeve external part is located at by described hard net, and described elastic soft film is wrapped in hard net surface and is fixed on sleeve external part by annular anchor ear; Described elastic soft film is provided with at least one " ten " font slot, and the outer surface of elastic soft film is exposed in tank body completely; The outer surface of described upper dish and lower wall is also provided with protruding blade.
Aeration opening is arranged on agitating device, under stirring, carries out aeration, make the contact of mud and ozone more abundant, the ozonisation of mud is better, thus more Interstitial Water and cellular water in mud are discharged, form the free water easily removed, be convenient to subsequent handling and remove.Described mud refers to the mud that the moisture content 99% that sewage treatment plant produces acts on.
How aeration head is arranged, and what kind of structure can better adapt to stirring, can the function of its aeration and reverse-filling be completed again simultaneously? if existing aeration head is arranged on the surface of agitator disk, during stirring, aeration head continues the resistance being subject to sludge stirring, and connection that is easy and agitator disk gets loose.Aeration head is embedded in agitator disk by the present invention cleverly, and only aeration end sub-fraction stretches in agitator disk surface, and aeration end is provided with hard net, and elastic soft film parcel hard net is also fixed on aeration head external part by annular anchor ear, just solves the problems referred to above.Agitator disk is put together by upper lower burrs, forms ozone outlet passageway, first ozone is caused this passage, then expose from aeration opening in the middle of two dishes.The cross section of aeration opening is set to waist-shaped hole shape, is the aeration in order to adapt to better in motion state.Aeration opening cross section from the inside to the outside reduces gradually, locates and be fixed on agitator disk by the conical surface.The outer surface of dish or lower wall is stretched out in one end that the cross section of sleeve is less, and elastic soft film is wrapped in hard net surface and is fixed on sleeve external part by annular anchor ear, and fastening rear annular anchor ear can prevent the sleeve of dish from falling in ozone outlet passageway.Certainly in order to reduce the stressed of annular anchor ear, making the connection of aeration head and aeration opening more firm simultaneously, sleeve and aeration opening inwall can be set to tight fit.Elastic soft film is arranged on agitator disk outer surface, facilitates cleaning and the replacing of elastic soft film.Elastic soft film has and rapidly plastic deformation occurs under a certain pressure, the characteristic can recovered rapidly after distress resolves.Elastic soft film is provided with " ten " font slot, and during aeration, ozone rushes at elastic soft film through sleeve and hard net, and " ten " font slot is rushed to open, ozone enter in tank body with mud haptoreaction; Not during aeration, due to the hydrostatic pressure of mud liquid in tank body, make " ten " font slot recover formation state, can prevent that liquid from pouring in down a chimney, large granular impurity blocking aeration mouth.The outer surface of elastic soft film is exposed in tank body completely, is not limited, during aeration by any object, elastic soft film can outwards arch upward, some " ten " font slot that it is arranged becomes cambered surface to distribute, and makes the direction of aeration more three-dimensional, thus makes the contact of mud and ozone more abundant.Arranging blade is in order to the amplitude of stirring is larger.Blade is arranged on agitator disk outer surface and forms projection, the outlet side of aeration head is namely lower than blade upper surface, when stirring aeration, blade drives mud to produce centrifugal force, makes mud get rid of to surrounding, the resistance of mud to aeration head and " ten " font slot is less, ozone more easily exposes and to mix with mud and along with the stirring of mud, to be full of each position of reaction tank, to realize mud and fully contact with ozone, to improve the utilization rate of ozone, improve the effect of reaction.
As preferably, the cross section of described sleeve lining is waist-shaped hole shape, and sleeve lining cross section from the inside to the outside reduces gradually.Sleeve lining cross section from the inside to the outside reduces gradually, makes aeration pressure more sufficient.
As preferably, the outward flange of described lower wall inner surface is provided with annular boss, and the outward flange of described upper dish inner surface is provided with the seam matched with annular boss.It is tightr that said structure makes upper lower burrs connect, and ozone outlet passageway more seals.
As preferably, the inner surface correspondence of described upper dish and lower wall is provided with at least two radial grooves, and the radial groove of upper dish and the radial groove of lower wall fasten and form ozone outlet passageway.On the disk body that said structure can make the fixture of upper lower burrs be located between adjacent two radial grooves, upper lower burrs is connected tightr.
As preferably, the inner surface of described upper dish is plane, and described upper dish inner surface, lower wall inner surface and annular boss madial wall form a complete ozone outlet passageway, described upper dish and lower wall is provided with the installing hole for fixing upper lower burrs.Said structure makes manufacture craft simpler.
As preferably, the middle part of described upper dish outer surface is provided with pit, and described pit is provided with the flange for fixing agitator disk and rotating shaft, the upper surface of described flange and the upper surface flush of blade; The aeration opening of described lower wall is greater than the aeration opening of dish.Above structure takes full advantage of the useful space of stirring plate, adds mixing effect and ozone reaction efficiency to greatest extent, also makes the installing/dismounting of stirring plate convenient.
As preferably, described driving mechanism comprises the horizontally disposed motor of output shaft, axially horizontally disposed first bevel gear that are connected successively and axial vertically disposed second bevel gear, and described rotating shaft is connected with the second bevel gear.
As preferably, the bottom of described tank body is a slope, and the height point on slope is positioned at the tank body sidepiece of mud import side, and the low spot on slope is positioned at the tank base near sludge outlet side, and the low spot on slope is higher than sludge outlet.Above-mentioned ramp designs, ensure that the mud that is disposed can flow into next process completely.
According to technical scheme of the present invention, under stirring, carry out aeration, make the contact of mud and ozone more abundant; Aeration head can better adapt to stirring, and better realizes aeration and reverse-filling function.
Accompanying drawing explanation
Fig. 1 is the structural representation of sludge ozonation retort in the embodiment of the present invention.
Fig. 2 is the structural representation of agitator disk in the embodiment of the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the structural representation of aeration head in the embodiment of the present invention.
Fig. 5 is the structural representation of embodiment of the present invention Elastic software film.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment
A kind of sludge ozonation retort, comprise tank body 1, upper cover 2 and agitating device, described tank body top is provided with mud import 11, and bottom is provided with sludge outlet 12.The bottom of described tank body is a slope, and the height point on slope is positioned at the tank body sidepiece of mud import side, and the low spot on slope is positioned at the tank base near sludge outlet side, and the low spot on slope is higher than sludge outlet.
Described agitating device comprises agitator disk 3, rotating shaft 4 and driving mechanism.Described driving mechanism comprises the horizontally disposed motor of output shaft 51, axially horizontally disposed first bevel gear 52 and axial vertically disposed second bevel gear 53 that are connected successively, and described rotating shaft is connected with the second bevel gear.Be provided with ozone inlet channel vertically in described rotating shaft 4, described ozone inlet channel upper end is connected with ozone generator.The top of rotating shaft is positioned at the top of upper cover and is connected with the second bevel gear 53 of driving mechanism, and the middle and lower part of rotating shaft is positioned at tank body and is fixedly connected with two agitator disks.
Described agitator disk 3 comprises the upper dish 31 and lower wall 32 that are fixedly linked, is provided with the ozone outlet passageway be communicated with ozone inlet channel between described upper dish and lower wall, described upper dish with lower wall is equipped with the aeration opening 311,321 be communicated with ozone outlet passageway.The outward flange of described lower wall inner surface is provided with annular boss 322, and the outward flange of described upper dish inner surface is provided with the seam 312 matched with annular boss.The inner surface correspondence of described upper dish and lower wall is provided with six groups of radial grooves, and the radial groove of upper dish and the radial groove of lower wall fasten and form ozone outlet passageway; Or the inner surface of described upper dish is plane, described upper dish inner surface, lower wall inner surface and annular boss madial wall form a complete ozone outlet passageway, described upper dish and lower wall are provided with the installing hole for fixing upper lower burrs; The outer surface of described upper dish and lower wall is also provided with protruding blade 61,62.The middle part of described upper dish outer surface is provided with pit, and described pit is provided with the flange 7 for fixing agitator disk and rotating shaft, the upper surface of described flange and the upper surface flush of blade; The aeration opening of described lower wall is greater than the aeration opening of dish; The blade of described lower wall is higher than the blade of upper dish.The cross section of described aeration opening is waist-shaped hole shape, and aeration opening cross section from the inside to the outside reduces gradually, and aeration opening is provided with aeration head 8.
Described aeration head 8 comprises sleeve 81, hard net 82, elastic soft film 83 and annular anchor ear 84, the shape of described sleeve outer wall and the mating shapes of aeration opening inwall, the outer surface of dish or lower wall is stretched out in one end that described sleeve cross section is less, the end face of sleeve external part is located at by described hard net, and described elastic soft film is wrapped in hard net surface and is fixed on sleeve external part by annular anchor ear; Described elastic soft film is provided with several " ten " font slots 831, and the outer surface of elastic soft film is exposed in tank body completely.The cross section of described sleeve lining is waist-shaped hole shape, and sleeve lining cross section from the inside to the outside reduces gradually.Described hard net can be steel wire, and described elastic soft film can be rubber soft film.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (8)
1. a sludge ozonation retort, is characterized in that: comprise tank body, upper cover and agitating device, and described tank body top is provided with mud import, and bottom is provided with sludge outlet; Described agitating device comprises agitator disk, rotating shaft and driving mechanism; Be provided with ozone inlet channel vertically in described rotating shaft, the top of rotating shaft is positioned at the top of upper cover and is connected with driving mechanism, and the middle and lower part of rotating shaft is positioned at tank body and is fixedly connected with at least one agitator disk; Described agitator disk comprises the upper dish and lower wall that are fixedly linked, is provided with the ozone outlet passageway be communicated with ozone inlet channel between described upper dish and lower wall, described upper dish with lower wall is equipped with the aeration opening be communicated with ozone outlet passageway; The cross section of described aeration opening is waist-shaped hole shape, and aeration opening cross section from the inside to the outside reduces gradually, and aeration opening is provided with aeration head; Described aeration head comprises sleeve, hard net, elastic soft film and annular anchor ear, the shape of described sleeve outer wall and the mating shapes of aeration opening inwall, the outer surface of dish or lower wall is stretched out in one end that described sleeve cross section is less, the end face of sleeve external part is located at by described hard net, and described elastic soft film is wrapped in hard net surface and is fixed on sleeve external part by annular anchor ear; Described elastic soft film is provided with at least one " ten " font slot, and the outer surface of elastic soft film is exposed in tank body completely; The outer surface of described upper dish and lower wall is also provided with protruding blade.
2. sludge ozonation retort according to claim 1, is characterized in that: the cross section of described sleeve lining is waist-shaped hole shape, and sleeve lining cross section from the inside to the outside reduces gradually.
3. sludge ozonation retort according to claim 1 and 2, is characterized in that: the outward flange of described lower wall inner surface is provided with annular boss, and the outward flange of described upper dish inner surface is provided with the seam matched with annular boss.
4. sludge ozonation retort according to claim 3, is characterized in that: the inner surface correspondence of described upper dish and lower wall is provided with at least two radial grooves, and the radial groove of upper dish and the radial groove of lower wall fasten and form ozone outlet passageway.
5. sludge ozonation retort according to claim 3, it is characterized in that: the inner surface of described upper dish is plane, described upper dish inner surface, lower wall inner surface and annular boss madial wall form a complete ozone outlet passageway, described upper dish and lower wall are provided with the installing hole for fixing upper lower burrs.
6. sludge ozonation retort according to claim 1 and 2, is characterized in that: the middle part of described upper dish outer surface is provided with pit, and described pit is provided with the flange for fixing agitator disk and rotating shaft, the upper surface of described flange and the upper surface flush of blade; The aeration opening of described lower wall is greater than the aeration opening of dish; The blade of described lower wall is higher than the blade of upper dish.
7. sludge ozonation retort according to claim 1 and 2, it is characterized in that: described driving mechanism comprises the horizontally disposed motor of output shaft, axially horizontally disposed first bevel gear and axial vertically disposed second bevel gear that are connected successively, and described rotating shaft is connected with the second bevel gear.
8. sludge ozonation retort according to claim 1 and 2, it is characterized in that: the bottom of described tank body is a slope, the height point on slope is positioned at the tank body sidepiece of mud import side, and the low spot on slope is positioned at the tank base near sludge outlet side, and the low spot on slope is higher than sludge outlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072994.8A CN103819068B (en) | 2014-03-03 | 2014-03-03 | Sludge ozonation reaction tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072994.8A CN103819068B (en) | 2014-03-03 | 2014-03-03 | Sludge ozonation reaction tank |
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| CN103819068A CN103819068A (en) | 2014-05-28 |
| CN103819068B true CN103819068B (en) | 2015-03-25 |
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| CN201410072994.8A Expired - Fee Related CN103819068B (en) | 2014-03-03 | 2014-03-03 | Sludge ozonation reaction tank |
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| CN112917691A (en) * | 2021-01-22 | 2021-06-08 | 武汉中阳明建材有限公司 | Light concrete and production process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202415338U (en) * | 2012-02-02 | 2012-09-05 | 重庆大学 | Ozone-sludge contacting reactor |
| CN203768196U (en) * | 2014-03-03 | 2014-08-13 | 浙江机电职业技术学院 | Sludge ozonation reaction tank, |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202415338U (en) * | 2012-02-02 | 2012-09-05 | 重庆大学 | Ozone-sludge contacting reactor |
| CN203768196U (en) * | 2014-03-03 | 2014-08-13 | 浙江机电职业技术学院 | Sludge ozonation reaction tank, |
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