CN109851196A - A kind of excess sludge pretreatment filtration system - Google Patents
A kind of excess sludge pretreatment filtration system Download PDFInfo
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- CN109851196A CN109851196A CN201910306946.3A CN201910306946A CN109851196A CN 109851196 A CN109851196 A CN 109851196A CN 201910306946 A CN201910306946 A CN 201910306946A CN 109851196 A CN109851196 A CN 109851196A
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- stainless steel
- filter
- net cylinder
- sludge
- steel net
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Abstract
The invention discloses a kind of excess sludge pretreatment filtration system, including grade one filter and secondary filter, grade one filter includes stainless steel net cylinder and sloped footing；Stainless steel net cylinder is connected by soft rubber with sloped footing sealing；Stainless steel net cylinder includes I-shaped main body and stainless (steel) wire, and I-shaped main body center is equipped with fluid channel；The top edge of stainless steel net cylinder is higher than aeration tank liquid level, and the front end of sludge pipe is protruded into the fluid channel of stainless steel net cylinder；Secondary filter includes lautertuns, filtering tank cover plate, multilayered fold shape filter screen and multilayer pressure-bearing filtering steel plate；Filtering tank cover plate is installed on lautertuns, is arranged successively multilayer pressure-bearing filtering steel plate and multilayered fold shape filter screen along water (flow) direction in lautertuns.The present invention is small in size, and flux is big, has good filter effect to fibrous impurity, and filter plant clean and maintenance is simple, solves traditional residual Treatment of Sludge and orifice plate is caused to block, the problem of excess sludge pretreating effect difference.
Description
Technical field
The present invention relates to Disposal Technology of Residual Sludge field, especially a kind of excess sludge pretreatment filtration system.
Background technique
Currently, excess sludge is the inevitable accessory products in biochemical processing procedure of sewage, since easily corruption, organic matter contain
Amount is high, is directly entered nature ring if do not dealt carefully with containing a large amount of pathogenic microorganisms and the heavy metal being harmful to the human body
Border will seriously destroy natural environment, polluted underground water, generate high risks to human health.10,000 tons of sewage of every processing it is necessary to
The excess sludge that 5-8 tons of moisture content are 80% is generated, China will generate several ten million tons of excess sludges every year according to statistics.
Currently, the technical research about excess sludge processing disposition, is concentrated mainly on the preprocess method of excess sludge,
A kind of novel excess sludge preconditioning technique is needed, at present to solve the problems, such as the processing of excess sludge.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of excess sludge pretreatment filtration system, solutions
When traditional residual Treatment of Sludge of having determined, it is easy to appear orifice plate blocking, the high problem of equipment cleaning frequency, the application has volume
Small, flux is big, has extraordinary filter effect to fibrous impurity.
The purpose of the present invention is achieved through the following technical solutions:
A kind of excess sludge pretreatment filtration system, including aeration tank and sludge concentration tank, aeration tank and sludge concentration tank
Between be equipped with sludge pipe, further include grade one filter and secondary filter, grade one filter is set in aeration tank, sludge pipe
Front end is connected with grade one filter, and the rear end of sludge pipe is connected with secondary filter, and the mud outlet end and sludge of secondary filter are dense
Contracting pond is connected；
Grade one filter includes stainless steel net cylinder and sloped footing；Stainless steel net cylinder is sealed by soft rubber and sloped footing
It is connected；Stainless steel net cylinder includes I-shaped main body and the stainless (steel) wire that is set in I-shaped main body, I-shaped main body center
Equipped with fluid channel, the upper surface and lower end surface of I-shaped main body are porous plate；Sloped footing is installed on aeration bottom of pond portion, stainless
The top edge of steel mesh cylinder is higher than aeration tank liquid level, and the front end of sludge pipe is protruded into the fluid channel of stainless steel net cylinder；
Secondary filter includes lautertuns, filtering tank cover plate, multilayered fold shape filter screen and multilayer pressure-bearing filtering steel plate；It crosses
Filter pocket cover board is installed on lautertuns, is arranged successively multilayer pressure-bearing filtering steel plate and multilayered fold shape along water (flow) direction in lautertuns
Filter screen.
It should be noted that the present invention use the aperture 1mm single layer stainless steel filter screen pre-filtering, the grade one filter by
The single layer stainless steel net cylinder and a sloped footing composition in one aperture 1mm.Sloped footing is placed in aeration bottom of pond portion, stainless (steel) wire
Cylinder is placed on sloped footing, and sloped footing cone bottom diameter is 1.5 times of stainless steel net cylinder diameter, stainless steel net cylinder and sloped footing
Contact position is sealed using soft rubber pad；When aeration tank spoil disposal, sludge first passes through the filtering of stainless steel net cylinder, filters out all big
Grain impurity, and most of fibrous impurity, then enter sludge pipe by fluid channel, by sludge pipe subsequently into sludge condensation
Pond.
And the present invention is additionally provided with secondary filter, secondary filter is mainly the structure for using excess sludge pre-processing device
Feature will get lodged in front of the fibrous impurity of excess sludge pretreatment alloy sheets, get lodged on secondary filter in advance, pass through cleaning
Secondary filter guarantees the unimpeded of excess sludge pre-processing device.
Preferably, the tubular structure that stainless steel net cylinder surrounds for the single layer stainless steel in the aperture 1mm.
Preferably, the bottom surface diameter of sloped footing is 1.5 times of stainless steel net cylinder diameter.
Preferably, stainless steel net cylinder is set on sloped footing vertically, and the fluid of stainless steel net cylinder is protruded into the front end of sludge pipe
In channel, and the vertex of a cone of the front end of sludge pipe apart from sloped footing is greater than 0.3m.
Preferably, the top edge of stainless steel net cylinder is higher than aeration tank liquid level 0.5m.
Preferably, multilayered fold shape filter screen is the multiple filtration net in the aperture 3mm.
Preferably, lautertuns is rectangle lautertuns.
The beneficial effects of the present invention are:
(1) present invention is small in size, and flux is big, has good filter effect to fibrous impurity, and filter plant cleans
Maintenance is simple, it is only necessary to clean grade one filter or secondary filter；
(2) since by-pass filtration net cylinder is located in aeration tank, so aeration tank aeration can also play filter screen
Cleaning action effectively improves the filter effect of filter so that the impurity got lodged on mesh is removed, and reduces the people of filter screen
Work cleaning frequency；
(3) solving traditional residual Treatment of Sludge causes orifice plate to block, the problem of excess sludge pretreating effect difference.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention；
Fig. 2 is the structural schematic diagram of grade one filter of the present invention；
Fig. 3 is the diagrammatic cross-section of stainless steel net cylinder of the present invention；
Fig. 4 is the top view of stainless steel net cylinder of the present invention；
Fig. 5 is the structural schematic diagram of secondary filter of the present invention；
In figure, the aeration tank 10-, 20- sludge concentration tank, 30- sludge pipe, 40- grade one filter, 50- secondary filter,
401- sloped footing, 402- stainless steel net cylinder, 403- soft rubber, the I-shaped main body of 404-, 405- stainless (steel) wire, 406- fluid are logical
Road, 407- porous plate, 501- lautertuns, 502- multilayer pressure-bearing filter steel plate, 503- multilayered fold shape filter screen.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.
A kind of excess sludge pretreatment filtration system, by the way that grade one filter and secondary filter is arranged in aeration tank,
When excess sludge processing, increase an excess sludge pretreatment link, so that large granular impurity is by grade one filter and second level mistake
Filter filters out, and when sludge being avoided to enter excess sludge pre-processing device, is blocked by impurity, to influence excess sludge pretreatment
Equipment it is unobstructed；The present invention only needs the impurity cleared up on grade one filter and secondary filter, avoids cleaning excess sludge
When pre-processing device, pre-processing device is frequently dismantled, and leads to the Rapid Damage of equipment.
It is further described below in conjunction with attached drawing.
A kind of excess sludge pretreatment filtration system, please refers to shown in attached drawing 1, including aeration tank 10 and sludge concentration tank
20, it is equipped with sludge pipe 30 between aeration tank 10 and sludge concentration tank 20, further includes grade one filter 40 and secondary filter 50,
Grade one filter 40 be set to aeration tank 10 in, the front end of sludge pipe 30 is connected with grade one filter 40, the rear end of sludge pipe 30 and
Secondary filter 50 is connected, and the mud outlet end of secondary filter 50 is connected with sludge concentration tank 20；Please refer to 4 institute of attached drawing 2- attached drawing
Show, grade one filter 40 includes stainless steel net cylinder 402 and sloped footing 401；Stainless steel net cylinder 402 passes through soft rubber 403 and cone
The sealing of shape pedestal 401 is connected；Stainless steel net cylinder 402 includes I-shaped main body 404 and is set in I-shaped main body 404 not
Become rusty steel mesh 405, and I-shaped 404 center of main body is equipped with fluid channel 406, and the upper surface and lower end surface of I-shaped main body 404 are more
Orifice plate 407；Sloped footing 401 is installed on 10 bottom of aeration tank, and the top edge of stainless steel net cylinder 402 is higher than aeration tank liquid level, row
The front end of mud pipe 30 is protruded into the fluid channel 406 of stainless steel net cylinder 402；It please refers to shown in attached drawing 5, secondary filter 50 includes
Lautertuns 501, filtering tank cover plate, multilayered fold shape filter screen 503 and multilayer pressure-bearing filter steel plate 502；Filter tank cover plate installation
In on lautertuns 501, multilayer pressure-bearing filtering steel plate 502 and multilayered fold shape mistake are arranged successively along water (flow) direction in lautertuns 501
Strainer 503.
The working principle of pretreatment filtration system of the present invention is:
Sludge needs successively from aeration tank 10 to excess sludge pre-processing device through grade one filter 40 and secondary filter
50 filterings, the contaminant filter that excess sludge pre-processing device may be blocked in excess sludge is fallen, and then guarantees that excess sludge is pre-
Processing equipment it is unimpeded.The impurity got lodged on grade one filter 40 and secondary filter 50 usually need to be only cleared up, cleaning is avoided
When excess sludge pre-processing device, pre-processing device is frequently dismantled, and leads to the Rapid Damage of equipment.
As preferred one embodiment, stainless steel net cylinder 402 is the tubular knot that the single layer stainless steel in the aperture 1mm surrounds
Structure, the bottom surface diameter of sloped footing 401 are 1.5 times of 402 diameter of stainless steel net cylinder, and stainless steel net cylinder 402 is set to cone vertically
On shape pedestal 401, the front end of sludge pipe 30 is protruded into the fluid channel 406 of stainless steel net cylinder 402, and the front end of sludge pipe 30 away from
The vertex of a cone from sloped footing 401 is greater than 0.3m, and the top edge of stainless steel net cylinder 402 is higher than aeration tank liquid level 0.5m, multilayered fold
Shape filter screen 503 is the multiple filtration net in the aperture 3mm, and lautertuns 501 is rectangle lautertuns.
As preferred one embodiment, the present embodiment is set with the pretreatment for handling 180 cubic metres of excess sludges per hour
For standby, aeration tank depth of water 5.6m, the optimal parameter for the filtration system of the device configuration is as follows:
The cartridge filter diameter of grade one filter 40 is 360mm, length 6m, tapered floor cone bottom diameter 540mm, and cone is high
270mm。
Filter screen and filter plate length and width in secondary filter 50 are 300mm.
In use process, cleaning is primary daily for grade one filter 40, and when cleaning can leave the water stainless steel net cylinder 402,
Then it is rinsed with giant, can also protrude into liquid level or less when aeration tank 10 is aerated with long-handle brush and scrub stainless (steel) wire
Cylinder 402, each scavenging period are no more than 20 minutes.Secondary filter 50 cleans weekly once, beats filtering tank cover plate when cleaning
It opens, takes out filter screen and filtering steel plate, with giant washing filter screen and filtering steel plate, after rinsing well, flushing was reinstalled
Filter pocket covers cover board.Each scavenging period is no more than 40 points of weeks.
After the filtering of above-mentioned filtration system, excess sludge pre-processing device monthly need to only be cleaned once, substantially reduce
The cleaning frequency of excess sludge pre-processing device, extends the service life of excess sludge pre-processing device.
Compared with prior art, the sludge filtration system, have it is small in size, flux is big, and there have to fibrous impurity to be very good
Filter effect, and filter plant clean and maintenance is simple.Since by-pass filtration net cylinder is located in aeration tank, so aeration
Pond aeration can also play cleaning action to filter screen, so that the impurity got lodged on mesh is removed, effectively improve filter
Filter effect reduces the artificial cleaning frequency of filter screen.
Which solve the pretreated orifice plate blockage problems of excess sludge, guarantee the excess sludge pretreatment system of our company exploitation
Optimum efficiency can be played, equipment cleaning frequency is reduced.
A specific embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (7)
1. a kind of excess sludge pretreatment filtration system, including aeration tank and sludge concentration tank, aeration tank and sludge concentration tank it
Between be equipped with sludge pipe, which is characterized in that it further includes grade one filter and secondary filter, and grade one filter is set to aeration tank
In, the front end of sludge pipe is connected with grade one filter, and the rear end of sludge pipe is connected with secondary filter, the mud extraction of secondary filter
End is connected with sludge concentration tank；
Grade one filter includes stainless steel net cylinder and sloped footing；Stainless steel net cylinder seals phase by soft rubber and sloped footing
Even；Stainless steel net cylinder includes I-shaped main body and the stainless (steel) wire that is set in I-shaped main body, and I-shaped main body center is set
There is fluid channel, the upper surface and lower end surface of I-shaped main body are porous plate；Sloped footing is installed on aeration bottom of pond portion, stainless steel
The top edge of net cylinder is higher than aeration tank liquid level, and the front end of sludge pipe is protruded into the fluid channel of stainless steel net cylinder；
Secondary filter includes lautertuns, filtering tank cover plate, multilayered fold shape filter screen and multilayer pressure-bearing filtering steel plate；Lautertuns
Cover board is installed on lautertuns, is arranged successively multilayer pressure-bearing filtering steel plate and the filtering of multilayered fold shape along water (flow) direction in lautertuns
Net.
2. a kind of excess sludge pretreatment filtration system according to claim 1, which is characterized in that stainless steel net cylinder is 1mm
The tubular structure that the single layer stainless steel in aperture surrounds.
3. a kind of excess sludge pretreatment filtration system according to claim 1, which is characterized in that the bottom surface of sloped footing
Diameter is 1.5 times of stainless steel net cylinder diameter.
4. a kind of excess sludge pretreatment filtration system according to claim 1, which is characterized in that stainless steel net cylinder is set vertically
In on sloped footing, the front end of sludge pipe is protruded into the fluid channel of stainless steel net cylinder, and the front end of sludge pipe is apart from conical bottom
The vertex of a cone of seat is greater than 0.3m.
5. a kind of excess sludge pretreatment filtration system according to claim 1, which is characterized in that the top of stainless steel net cylinder
Edge is higher than aeration tank liquid level 0.5m.
6. a kind of excess sludge pretreatment filtration system according to claim 1, which is characterized in that multilayered fold shape filter screen
For the multiple filtration net in the aperture 3mm.
7. a kind of excess sludge pretreatment filtration system according to claim 1, which is characterized in that lautertuns is rectangle mistake
Filter pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306946.3A CN109851196A (en) | 2019-04-17 | 2019-04-17 | A kind of excess sludge pretreatment filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306946.3A CN109851196A (en) | 2019-04-17 | 2019-04-17 | A kind of excess sludge pretreatment filtration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109851196A true CN109851196A (en) | 2019-06-07 |
Family
ID=66889178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910306946.3A Pending CN109851196A (en) | 2019-04-17 | 2019-04-17 | A kind of excess sludge pretreatment filtration system |
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| Country | Link |
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| CN (1) | CN109851196A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201056516Y (en) * | 2006-10-26 | 2008-05-07 | 上海市政工程设计研究总院 | Active sludge filter |
| CN203170087U (en) * | 2013-01-22 | 2013-09-04 | 大连连城数控机器股份有限公司 | Filter element of filter cartridge of multi-thread slicer |
| CN206355715U (en) * | 2016-12-30 | 2017-07-28 | 任梓瑞 | A kind of anti-blocking filtering pond of multi-filtering |
| CN206655030U (en) * | 2017-04-12 | 2017-11-21 | 宁波金帅集团有限公司 | A kind of bilateral circulation stainless (steel) wire filter of two-tub washing machine |
-
2019
- 2019-04-17 CN CN201910306946.3A patent/CN109851196A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201056516Y (en) * | 2006-10-26 | 2008-05-07 | 上海市政工程设计研究总院 | Active sludge filter |
| CN203170087U (en) * | 2013-01-22 | 2013-09-04 | 大连连城数控机器股份有限公司 | Filter element of filter cartridge of multi-thread slicer |
| CN206355715U (en) * | 2016-12-30 | 2017-07-28 | 任梓瑞 | A kind of anti-blocking filtering pond of multi-filtering |
| CN206655030U (en) * | 2017-04-12 | 2017-11-21 | 宁波金帅集团有限公司 | A kind of bilateral circulation stainless (steel) wire filter of two-tub washing machine |
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Application publication date: 20190607 |
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