CN209307175U - A kind of sewage disposal system using primary sludge fermentation - Google Patents
A kind of sewage disposal system using primary sludge fermentation Download PDFInfo
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- CN209307175U CN209307175U CN201822130124.8U CN201822130124U CN209307175U CN 209307175 U CN209307175 U CN 209307175U CN 201822130124 U CN201822130124 U CN 201822130124U CN 209307175 U CN209307175 U CN 209307175U
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- 238000000855 fermentation Methods 0.000 title claims abstract description 68
- 230000004151 fermentation Effects 0.000 title claims abstract description 68
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 238000004062 sedimentation Methods 0.000 claims abstract description 28
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- 229910052799 carbon Inorganic materials 0.000 abstract description 23
- 238000000034 method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
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- Treatment Of Sludge (AREA)
Abstract
The utility model proposes a kind of sewage disposal systems using primary sludge fermentation, it include: grid, setting pot, primary sedimentation tank, biological tank, secondary settling tank, sterilization pool, it further include biological fermentation device, the sludge that primary sedimentation tank generates is transported to biological fermentation device, and the fermentation liquid that biological fermentation device generates is transported to biological tank；Biological fermentation device includes: tank body, and tank base is provided with storage bucket, stores up the side wall or bottom setting mud mouth of bucket；Tank body top is provided with mud inlet, water inlet, liquid outlet；It is provided with enters mud pipe array and water inlet pipe array in tank body, liquid outlet groove and shelves slag plate annulus are provided at the top of the tank wall；Stirring pawl is provided in tank body.The sewage disposal system using primary sludge fermentation of the utility model ferments the sludge that primary sedimentation tank generates, the fermentation liquid of generation can be used as carbon source, be not necessarily to or add external carbon source on a small quantity, saved cost, sewage plant sludge total amount is reduced simultaneously, saves sludge treatment expense.
Description
Technical field
The utility model relates to technical field of sewage, in particular to a kind of sewage treatment using primary sludge fermentation
System.
Background technique
The urban wastewater discharge in China sharply increases, and water pollution is constantly aggravated.Since nitrogen phosphorus is excessive in natural water
Eutrophication caused by accumulating constantly is broken out, and to solve the water pollution problems got worse, China was on July 1st, 2003
Act " urban wastewater treatment firm pollutant emission standard " GB18918-2002 for coming into effect) in level-one A standard to water outlet nitrogen
Phosphorus index proposes tightened up requirement, and nitrogen pool (TN) is less than 15mg/l, and total phosphorus content (TP) is less than 0.5mg/l.
Since China municipal sewage C/N is more lower than universal, in addition in sewage treatment process primary sedimentation tank effect, make to enter life
Change the sewage C/N in pond than further decline, carbon source deficiency and the competitive contradiction caused therefrom cause denitrogenation and dephosphorization to be difficult to
Reach ideal effect.Therefore, there is China's overwhelming majority the municipal sewage plant of denitrogenation dephosphorizing function not add at present
In the state of external carbon source, the nitrogen and phosphorus of water outlet are difficult to reach the requirement of level-one emission standard A.
For most of town sewage treatment systems, organic carbon source shortage is to cause denitrogenation dephosphorizing efficiency that can not improve
The main reason for.External carbon source is added currently, generalling use, such as methanol, acetic acid even glucose are imitated to improve biological denitrificaion
Fruit；Using adding chemical agent, such as ferrous sulfate, polyaluminium chlorine improve chemical dephosphorization effect.It is this to rely on additional carbon
With the method for medicament, greatest drawback be it is costly, in addition big there are also sludge yield, recycling sludge (phosphate fertilizer), which limit, etc. bears
Face effect.
Fig. 1 shows a typical case of existing sewage disposal system, and sanitary sewage successively passes through grid 1, sinks
After sand pond 2, primary sedimentation tank 3, biological tank 4, secondary settling tank 5, the processing of sterilization pool 6, reach level-one B discharge standard.
Treatment sewage first passes through grid 1 and carries out coarse filtration, and the suspended matter in pollutant is on the one hand cut resistance, another party
The equipment such as the water pump assembly in subsequent processes are faced to play a protective role.
Sewage in migration, flow and be inevitably mixed into silt particle during collecting.If the sand in sewage does not sink in advance
Drop separation removal, then will affect the operation of subsequent processing device, and most importantly abrasion pump, blocking pipe network, interference is even broken
Bad biochemical processing process process.Setting pot is mainly used for removing partial size in sewage and is greater than 0.2mm, and density is greater than 2.65t/ cubic metres
Sand grains, with facilities such as protective conduit, valves from wearing and blocking.
Primary sedimentation tank is the indispensable link of the current sewage disposal process in China, is carried out by primary sedimentation tank to town sewage pre-
Processing can remove suspended matter, organic matter etc. in sewage, reduce variation water quality to the biochemical treatment link in subsequent bio pond
Impact.Suspended matter in primary sedimentation tank precipitates, and becomes sludge, currently, the sludge of primary sedimentation tank is as offal treatment.Primary sedimentation tank
While removing 40%~60% suspended matter, 20%~40% organic matter (COD) load is also reduced, is in turn resulted in organic
The loss of carbon source, the biochemical treatment link in biological tank need to add external carbon source to the removal of nitrogen, phosphorus.Since China city is arranged
Water infrastructure is yet to be completed and the problems such as existing living habit, is essentially combined system especially for those drainages
City retains primary sedimentation tank and still compares if many difficulties can be brought to the normal operation of subsequent biochemical processing links by cancelling primary sedimentation tank
Compared with widespread practice.
It is also carbon source the most economic that organic carbon source in sewage, which is more satisfactory, how on the basis for retaining primary sedimentation tank
On, the due effect of primary sedimentation tank was not only played, but also do not allow organic carbon source to be lost, the carbon source in sewage is used for subsequent bio denitrogenation and is removed
Needed for phosphorus link, additional carbon is saved, improves biological denitrification dephosphorization efficiency, is current town sewage treatment system design and operation
Middle urgent problem to be solved.
Utility model content
The utility model proposes a kind of sewage disposal systems using primary sludge fermentation, solve urban wastewater treatment firm
Existing sewage disposal system primary sedimentation tank reduces organic loading, and the biochemical treatment link of subsequent biological tank needs add
The problem of external carbon source.
The technical solution of the utility model is achieved in that
A kind of sewage disposal system using primary sludge fermentation, comprising: grid 1, setting pot 2, primary sedimentation tank 3, biological tank
4, secondary settling tank 5, sterilization pool 6, further include biological fermentation device 7, and the sludge that primary sedimentation tank 3 generates is transported to the biological fermentation device
7, the fermentation liquid that biological fermentation device 7 generates is transported to the biological tank；
Biological fermentation device 7 includes: tank body 11, and the tank base 12 is inverted cone-shaped structure, and tank base is provided with storage
Bucket 13 is provided with mud inlet 14, water inlet 15, liquid outlet 16 and mud mouth 17 on the tank body；
Enters mud pipe array 31 is provided in the tank body, the enters mud pipe array includes multiple upright enters mud pipes 18, into
The bottom mud extraction of mud pipe, the top of enters mud pipe are connected with the first main pipe 19, first main pipe 19 and 14 phase of mud inlet
Connection；
Water inlet pipe array 32 is additionally provided in the tank body, the water inlet pipe array includes multiple upright water inlet pipes 20,
The bottom of the water inlet pipe is discharged, and the top of water inlet pipe is connected with the second main pipe 21, second main pipe 21 and the water inlet
Mouth 15 is connected；
It is provided with one at the top of the tank wall and irises out liquid bath 22, the liquid outlet groove 22 is U-shaped structure, the bottom of liquid outlet groove
Portion is provided with one or more and is connected to by pipeline described for collecting the collector nozzle 23 of fermentation liquid, the collector nozzle 23
Liquid outlet 16；The top of the tank is additionally provided with the shelves slag plate annulus 38 being made of the upright shelves slag plate 24 of a circle, the shelves slag
The diameter of plate annulus 38 is less than the diameter of the liquid outlet groove and keeps the gap 10-20cm with the liquid outlet groove；The shelves slag plate
Upper edge is higher than the upper edge 10-30cm of the liquid outlet groove, and the lower edge of the shelves slag plate is lower than the upper edge of the liquid outlet groove
5-20cm, the height of the shelves slag plate are 30-50cm；
Stirring pawl 25 is additionally provided in the tank body, the stirring pawl drives rotation by the shaft 26 at tank body center, described
The driving device setting of shaft is provided with back taper compatible with the tank base in top of the tank, the bottom of the stirring pawl
The contrate 27 of shape structure is provided with multiple upright vertical teeth 28 upwards, the vertical tooth 28 and the water inlet pipe 20 on the contrate
It is staggered with the enters mud pipe 18.
Optionally, the enters mud pipe array 31 is linear type array.
Optionally, the quantity of the enters mud pipe array 31 is multiple, and multiple enters mud pipe arrays are staggered.
Optionally, the water inlet pipe array 32 is linear type array.
Optionally, the quantity of the water inlet pipe array 32 is multiple, and multiple water inlet pipe arrays are staggered.
Optionally, the water inlet pipe array 32 and the enters mud pipe array 31 are staggered.
Optionally, the vertical tooth is L-shaped structure, stands the tip of tooth towards direction of rotation.
It optionally, further include cleaning shoe 29, the cleaning shoe is symmetrical blade construction, and the setting of cleaning shoe 29 exists
It is coaxially disposed in the storage bucket of 25 lower section of stirring pawl and with the stirring pawl.
Optionally, the nozzle of 18 bottom of sludge out pipe is the first mud inlet 33, is gone back on the side wall of the enters mud pipe nozzle
It is provided with multiple second mud inlets 34.
Optionally, the aperture of first mud inlet is 8-12mm.
Optionally, the aperture of second mud inlet is 6-7mm.
Optionally, the nozzle of 20 bottom of water inlet pipe is the first water inlet 35, is gone back on the side wall of the water inlet pipe nozzle
It is provided with multiple second water inlets 36.
Optionally, the aperture of first water inlet is 2-3mm.
Optionally, the aperture of second water inlet is 1-2mm.
Optionally, the first mud inlet 33 of 18 bottom of enters mud pipe is arranged in tank body 1/7-1/4 height and position, the tank
Body height is the height from bottom inverted cone-shaped structure tip to top of the tank.
Optionally, first mud inlet 33 is arranged in 1/5 height and position of tank body.
Optionally, the first water inlet 35 of 20 bottom of water inlet pipe is arranged in tank body 1/6-1/3 height and position, the tank
Body height is the height from bottom inverted cone-shaped structure tip to top of the tank.
Optionally, first water inlet 35 is arranged in 1/4 height and position of tank body.
The beneficial effects of the utility model are:
(1) Sludge from primary sedimentation tank is as waste in the prior art, and the sludge that the utility model generates primary sedimentation tank carries out
Fermentation, biochemical treatment link of the fermentation liquid of generation as carbon source for subsequent biological tank use.
(2) fermentation liquid that biological fermentation device generates can be used as carbon source for subsequent biochemical treatment link, be not necessarily to
It adds external carbon source or only needs to add a small amount of external carbon source, saved cost, while reducing sewage plant sludge total amount, save dirty
Mud disposal costs.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the functional block diagram of existing sewage disposal system；
Fig. 2 is the functional block diagram of the sewage disposal system of the utility model；
Fig. 3 is the side structure schematic view of an alternative embodiment of the biological fermentation device of the utility model；
Fig. 4 is the overlooking structure diagram of an alternative embodiment of the biological fermentation device of the utility model；
Fig. 5 is the side structure schematic view of an alternative embodiment of the enters mud pipe of the utility model；
Fig. 6 is the side structure schematic view of an alternative embodiment of the water inlet pipe of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model proposes a kind of sewage disposal systems using primary sludge fermentation, for what is generated to primary sedimentation tank
Sludge ferments, and the fermentation liquid of generation is used as carbon source for subsequent biochemical treatment link.
Fig. 2 shows an alternative embodiments of the sewage disposal system for utilizing primary sludge fermentation.
In the alternative embodiment, the sewage disposal system using primary sludge fermentation includes: grid 1, setting pot 2, just sinks
Pond 3, biological tank 4, secondary settling tank 5, sterilization pool 6, further include biological fermentation device 7, and the sludge that primary sedimentation tank 3 generates is transported to biology
Installation for fermenting 7, the fermentation liquid that biological fermentation device 7 generates are transported to the biological tank.
Optionally, it is connected by mud guiding tube with dredge pump between the primary sedimentation tank 3 and biological fermentation device 7, primary sedimentation tank 3 produces
Raw sludge is transported to biological fermentation device 7 by mud guiding tube and dredge pump.
Fig. 3 and Fig. 4 shows an alternative embodiment of biological fermentation device.
In the alternative embodiment, biological fermentation device 7 includes: tank body 11, and tank base 12 is inverted cone-shaped structure, tank body bottom
12 settled sludge of portion.Tank base 12 is provided with storage bucket 13, and mud mouth 17 is arranged in the side wall or bottom for storing up bucket 13, is used for
Tank base sludge is discharged.In embodiment illustrated in fig. 3, the side wall of storage bucket 13 is arranged in mud mouth 17.
11 top of tank body is provided with mud inlet 14, water inlet 15, liquid outlet 16.
Enters mud pipe array 31 is provided in tank body 11, the enters mud pipe array 31 includes multiple upright enters mud pipes 18, into
The bottom mud extraction of mud pipe 18, the top of enters mud pipe 18 are connected with the first main pipe 19, and the first main pipe 19 is connected with mud inlet 14.
Mud inlet 14 inputs the sludge from primary sedimentation tank, and sludge is transported to each enters mud pipe 18 by the first main pipe 19, and from into
18 bottom of mud pipe is assigned to each position in tank body.
Optionally, enters mud pipe array 31 is linear type array, i.e., each 18 parallel arranged of enters mud pipe is in a row.
Optionally, the quantity of enters mud pipe array 31 is multiple, and multiple enters mud pipe arrays are staggered.Embodiment illustrated in fig. 4
In, the quantity of enters mud pipe array 31 is two, and two enters mud pipe arrays 31 are vertically staggered.
Water inlet pipe array 32 is additionally provided in tank body 11, water inlet pipe array 32 includes multiple upright water inlet pipes 20, water inlet
The bottom of pipe 20 is discharged, and the top of water inlet pipe 20 is connected with the second main pipe 21, and the second main pipe 21 is connected with water inlet 15,
Water inlet 15 is inputted for the elutriation water with sludge mixed fermentation.Optionally, the elutriation water is that sewage plant handles qualified discharge
Water or tap water for municipal pipeline.
Optionally, the water inlet pipe array 32 is linear type array, i.e., each 20 parallel arranged of water inlet pipe is in a row.
Optionally, the quantity of water inlet pipe array 32 is multiple, and multiple water inlet pipe arrays are staggered.Embodiment illustrated in fig. 4
In, the quantity of water inlet pipe array 31 is two, and two water inlet pipe arrays 31 are vertically staggered.
Optionally, water inlet pipe array 32 and enters mud pipe array 31 are staggered.In embodiment illustrated in fig. 4, two water inlet pipes
Array 32 and two enters mud pipe arrays 31 are staggered.
It is provided with one at the top of 11 side wall of tank body and irises out liquid bath 22, liquid outlet groove 22 is U-shaped structure, the bottom of liquid outlet groove 22
It is provided with one or more and liquid outlet 16 is connected to by pipeline for collecting the collector nozzle 23 of fermentation liquid, collector nozzle 23.Fig. 4
In illustrated embodiment, the quantity of collector nozzle 23 is one, and certainly, the quantity of collector nozzle 23 is also possible to multiple, multiple collector nozzles
It is evenly distributed in liquid outlet groove, each collector nozzle is connected to the liquid outlet 16 on tank body top by pipeline.
The top of tank body 11 is additionally provided with the shelves slag plate annulus 38 being made of the upright shelves slag plate 24 of a circle, shelves slag plate annulus
38 diameter is less than the diameter of liquid outlet groove 22 and keeps the 10-gaps 20cm with liquid outlet groove 22.
The top floating of fermentation liquid has one layer of dross, and shelves slag plate annulus 38 is for the dross at the top of fermentation liquid to be blocked in out
Except liquid bath 22, fermentation liquid spills into liquid outlet groove from the gap between shelves slag plate annulus 38 and liquid outlet groove 22, to guarantee fermentation liquid
It is more limpid.
Optionally, the upper edge of shelves slag plate 24 is higher than the upper edge 10-30cm of liquid outlet groove 22.Optionally, shelves slag plate 24
Upper edge is higher than the upper edge 20cm of liquid outlet groove 22.
Optionally, the lower edge of shelves slag plate 24 is lower than the upper edge 5-20cm of liquid outlet groove 22.Optionally, under shelves slag plate 24
Edge is lower than the upper edge 10cm of liquid outlet groove 22.
Optionally, the height of shelves slag plate 24 is 30-50cm.Optionally, the height of shelves slag plate 24 is 40cm.
Stirring pawl 25 is additionally provided in tank body 11, stirring pawl 25 drives rotation by the shaft 26 at tank body center, shaft 26
Driving device is arranged in top of the tank.The bottom of stirring pawl 25 is provided with the cross of inverted cone-shaped structure compatible with tank base 12
Tooth 27, multiple upright vertical teeth 28 upwards are provided on contrate 27, and vertical tooth 28 is staggered with water inlet pipe 20 and enters mud pipe 18.
Stirring pawl 25 rotates clockwise or counterclockwise, for the sludge in tank body 11 to be sufficiently mixed uniformly with water is eluriated.
Optionally, stirring pawl 25 is arranged in tank body medium position.
Optionally, stirring pawl 25 is arranged in tank base position.
Optionally, founding tooth 28 is L-shaped structure, stands the tip of tooth 28 towards direction of rotation.
Optionally, biological fermentation device further includes cleaning shoe 29, and cleaning shoe 29 is symmetrical blade construction, and cleaning shoe 29 is set
It sets in the storage bucket 13 below stirring pawl 25 and is coaxially disposed with stirring pawl 29.While stirring the rotation of pawl 25, cleaning shoe 29
It rotates coaxially, keeps fluid state for making to store up the sludge in bucket 13, prevent mud mouth 17 from blocking.
Fig. 5 shows an alternative embodiment of enters mud pipe.
In the alternative embodiment, 18 bottom nozzle of enters mud pipe is the first mud inlet 33, the side wall of 18 bottom nozzle of enters mud pipe
On be additionally provided with multiple second mud inlets 34.
Optionally, the aperture of the first mud inlet 33 is 8-12mm.Optionally, the aperture of the first mud inlet 33 is 10mm.
Optionally, the aperture of the second mud inlet 34 is 6-7mm.Optionally, the aperture of the second mud inlet 34 is 6mm.
Fig. 6 shows an alternative embodiment of water inlet pipe.
In the alternative embodiment, 20 bottom nozzle of water inlet pipe is the first water inlet 35, the side wall of 20 bottom nozzle of water inlet pipe
On be additionally provided with multiple second water inlets 36.
Optionally, the aperture of the first water inlet 35 is 2-3mm.Optionally, the aperture of the second water inlet is 1-2mm.
Optionally, the first mud inlet 33 of 18 bottom of enters mud pipe is arranged in tank body 1/7-1/4 height and position.Tank body height is
From bottom inverted cone-shaped structure tip to the height of top of the tank.Optionally, the first mud inlet 33 is arranged in 1/5 height position of tank body
It sets.
Optionally, the first water inlet 35 of 20 bottom of water inlet pipe is arranged in tank body 1/6-1/3 height and position.Tank body height is
From bottom inverted cone-shaped structure tip to the height of top of the tank.Optionally, the first water inlet 35 is arranged in 1/4 height position of tank body
It sets.
In fermentation process, 11 top of tank body is fermentation liquid layer, and the fermentation liquid layer is liquid；It is fermentation in the middle part of tank body 11
Layer, fermentation layer are mud liquid mixed state；11 bottom of tank body is sludge blanket, and sludge blanket is the sludge of compacting.
The sewage disposal system using primary sludge fermentation of the utility model ferments the sludge that primary sedimentation tank generates,
The fermentation liquid of generation is used as carbon source for subsequent biological tank, on the one hand realizes the recycling of Sludge from primary sedimentation tank, another party
Face, the fermentation liquid that biological fermentation device generates can be used as carbon source for subsequent biochemical treatment link, without adding outside
Carbon source has saved cost.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of sewage disposal system using primary sludge fermentation, comprising: grid (1), setting pot (2), primary sedimentation tank (3), life
Object pond (4), secondary settling tank (5), sterilization pool (6), which is characterized in that further include biological fermentation device (7), the primary sedimentation tank (3) produces
Raw sludge is transported to the biological fermentation device (7), and the fermentation liquid that the biological fermentation device (7) generates is transported to the life
Object pond；
The biological fermentation device (7) includes: tank body (11), and the tank base (12) is inverted cone-shaped structure, and tank base is set
It is equipped with storage bucket (13), the side wall of the storage bucket or bottom setting mud mouth (17)；The tank body top is provided with into mud
Mouth (14), water inlet (15), liquid outlet (16)；
It being provided in the tank body enters mud pipe array (31), the enters mud pipe array includes multiple upright enters mud pipes (18), into
The bottom mud extraction of mud pipe, the top of enters mud pipe are connected with the first main pipe (19), first main pipe (19) and the mud inlet
(14) it is connected；
It being additionally provided in the tank body water inlet pipe array (32), the water inlet pipe array includes multiple upright water inlet pipes (20),
The bottom of the water inlet pipe is discharged, and the top of water inlet pipe is connected with the second main pipe (21), second main pipe (21) with it is described
Water inlet (15) is connected；
It is provided with one at the top of the tank wall to iris out liquid bath (22), the liquid outlet groove (22) is U-shaped structure, the bottom of liquid outlet groove
Portion is provided with one or more and is connected to institute by pipeline for collecting the collector nozzle (23) of fermentation liquid, the collector nozzle (23)
State liquid outlet (16)；The top of the tank is additionally provided with the shelves slag plate annulus (38) being made of the upright shelves slag plate (24) of a circle,
The diameter of the shelves slag plate annulus (38) is less than the diameter of the liquid outlet groove and keeps the gap 10-20cm with the liquid outlet groove；Institute
The upper edge for stating grade slag plate is higher than the upper edge 10-30cm of the liquid outlet groove, and the lower edge of the shelves slag plate is lower than the liquid out
The upper edge 5-20cm of slot, the height of the shelves slag plate are 30-50cm；
Stirring pawl (25) is additionally provided in the tank body, the stirring pawl drives rotation by the shaft (26) at tank body center, described
The driving device setting of shaft is provided with back taper compatible with the tank base in top of the tank, the bottom of the stirring pawl
The contrate (27) of shape structure, is provided with multiple upright vertical teeth (28) upwards on the contrate, the vertical tooth (28) and it is described into
Water pipe (20) and the enters mud pipe (18) are staggered.
2. utilizing the sewage disposal system of primary sludge fermentation as described in claim 1, which is characterized in that the enters mud pipe battle array
Arranging (31) is linear type array.
3. utilizing the sewage disposal system of primary sludge fermentation as claimed in claim 2, which is characterized in that the enters mud pipe battle array
Arrange (31) quantity be it is multiple, multiple enters mud pipe arrays are staggered.
4. utilizing the sewage disposal system of primary sludge fermentation as described in claim 1, which is characterized in that the water inlet pipe battle array
Arranging (32) is linear type array.
5. utilizing the sewage disposal system of primary sludge fermentation as claimed in claim 4, which is characterized in that the water inlet pipe battle array
Arrange (32) quantity be it is multiple, multiple water inlet pipe arrays are staggered.
6. utilizing the sewage disposal system of primary sludge fermentation as described in claim 1, which is characterized in that the water inlet pipe battle array
Column (32) and the enters mud pipe array (31) are staggered.
7. utilizing the sewage disposal system of primary sludge fermentation as described in claim 1, which is characterized in that the vertical tooth is L
Shape structure, the tip of the vertical tooth is towards direction of rotation.
8. utilizing the sewage disposal system of primary sludge fermentation as described in claim 1, which is characterized in that further include cleaning shoe
(29), the cleaning shoe is symmetrical blade construction, storage mud of cleaning shoe (29) setting below stirring pawl (25)
It is coaxially disposed in bucket and with the stirring pawl.
9. utilizing the sewage disposal system of primary sludge fermentation as described in claim 1, which is characterized in that the enters mud pipe
(18) bottom nozzle is the first mud inlet (33), is additionally provided with multiple second mud inlets on the side wall of the enters mud pipe bottom nozzle
(34)。
10. utilizing the sewage disposal system of primary sludge fermentation as described in claim 1, which is characterized in that the water inlet pipe
(20) bottom nozzle is the first water inlet (35), is additionally provided with multiple second water inlets on the side wall of the water inlet pipe bottom nozzle
(36)。
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| CN201822130124.8U CN209307175U (en) | 2018-12-18 | 2018-12-18 | A kind of sewage disposal system using primary sludge fermentation |
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| CN201822130124.8U CN209307175U (en) | 2018-12-18 | 2018-12-18 | A kind of sewage disposal system using primary sludge fermentation |
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2018
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