CN203833784U - Sludge drying system - Google Patents
Sludge drying system Download PDFInfo
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- CN203833784U CN203833784U CN201420122727.2U CN201420122727U CN203833784U CN 203833784 U CN203833784 U CN 203833784U CN 201420122727 U CN201420122727 U CN 201420122727U CN 203833784 U CN203833784 U CN 203833784U
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- China
- Prior art keywords
- mummification
- sludge
- drying
- mud
- stacking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a sludge drying system which comprises a sludge pretreatment device, a layering device, a stacking drying chamber, an overturning throwing drying chamber and a drying air purification device. A blower is arranged in the stacking drying chamber; and a drying trough, an overturning throwing device and a blower are arranged in the overturning throwing drying chamber. The sludge pretreatment device prepares sludge with a certain water content into sludge powder and scatters the sludge powder on the layering device, the layering device stacks partition plates with the sludge powder, the stacking drying chamber is used for performing drying treatment on the sludge on the layering device, the overturning throwing drying chamber is used for performing overturning throwing drying treatment on the sludge having undergone drying treatment, the blower is used for providing constant-temperature drying air flowing at a certain speed, and the drying air purification device is used for performing purification treatment on the drying air discharged out of the stacking drying chamber and the overturning throwing drying chamber. According to the sludge drying system, an external heat source is not needed, and quick drying of the sludge is achieved at a low running cost.
Description
Technical field
The utility model relates to a kind of sludge drying system, particularly a kind of sludge drying system that collects mechanism filter-pressing and air-dry mummification.
Background technology
Along with the expansion of sewage disposal scale and the raising of standard, sludge creation amount constantly increases, passing accumulative mud in addition, and Chinese sludge treatment is disposed becomes significant problem of sewage treatment area.
The moisture percentage in sewage sludge producing from sewage work is very high, and general >80%, first will just be convenient to further disposal by sludge drying.At present, sludge drying main technological route has heat drying, mechanical mummification, air-dry, solar energy desiccation etc.Heat drying construction cost, running cost are too high, and sun power construction cost is high, it is narrow to adapt to region.Mechanism filter-pressing and air-dry cost are low, but mechanical mummification often can only be arrived water ratio 65% left and right by sludge drying, and air-dry efficiency is lower.Its effect of a kind of technique means of simple application can not be satisfactory.
If mechanical mummification is combined with air-dry, utilize mechanical mummification to slough at a high speed part moisture, then by the air-dry major part of sloughing in residue water of low cost, can realize well the unification of cost, efficiency, reach gratifying quick, low cost mummification effect.
Utility model content
The purpose of this utility model is to provide one sludge drying system cheaply, it adopts mechanical mummification and the air-dry mode combining, to realize fast, at low cost the normal temperature drying process of mud, and reach the mummification effect of expection, thereby reduce the impact that mud causes environment.
For realizing above-mentioned utility model object, the utility model proposes a kind of sludge drying system, comprise sludge pretreatment device, decker, stacking mummification chamber, turn over drying chamber and mummification air cleaning unit, the indoor gas blower that is provided with of described stacking mummification, the described indoor mummification groove that is provided with of drying that turns over, turn over polishing apparatus and gas blower, described sludge pretreatment device is prepared into mud powder by the mud with certain water ratio and is sprinkling upon on described decker, described decker is undertaken stacking by the dividing plate that is furnished with mud powder, described stacking mummification chamber is for carrying out air-dry processing to the mud on decker, described the drying chamber of turning over is for turning over throwing drying and other treatment to air-dry mud after treatment, described gas blower is for providing certain speed mobile normal temperature mummification air, described mummification air cleaning unit is used for carrying out purifying treatment from stacking mummification chamber and the mummification air that turns over the discharge of drying chamber.
Further, described sludge pretreatment device comprises crusher, pulverizer and duster, predry sludge crushing is become little clod by described crusher, and little clod is further ground into small particle size mud powder by pulverizer, and duster disperses mud powder to sow on described dividing plate.
For the higher wet mud of water ratio, described sludge pretreatment device also comprises that machinery press dry device, for wet mud is pressed dry to pre-treatment.
As optimal way, described in turn over polishing apparatus and be installed in described mummification groove, and move back and forth along described mummification groove, turn over throwing with the mud powder in mummification groove.
Another kind of preferred mode, described mummification groove is rotary type mummification groove, in mummification groove, is provided with and turns over throwing spiral, turns over to throw spiral and be fixed on mummification groove inwall, mud powder is along with mummification groove rotates and turned over and throw spiral and take eminence to and fall to realize and stir.
Described decker preferably adopts gauze that mesh is less than mud powder footpath as dividing plate, and gauze is supported by skeleton.
Described mummification air cleaning unit is the top spray device that is arranged at described stacking mummification chamber and turns over top, drying chamber, and described top spray device comprises the atomizer on spray piping and setting and spray piping.
Described stacking mummification chamber and turn over the indoor mummification air of drying and introduced in described top spray device by induced draft fan.
Sludge drying system of the present utility model adopts mechanism filter-pressing, stacking normal temperature is air-dry and turn over the method that the mummification of normal temperature wind syllogic combines of throwing, it mixes the mechanical means such as dewatered sludge and wet mud by mechanism filter-pressing or machinery and water ratio is exceeded to 80% wet mud carries out predryingly, and moisture percentage in sewage sludge is reduced to 65% left and right; Pre-dewatered sludge is made to mud powder after the processing such as fragmentation, pulverizing, mud pruinescence disperses to be laid on the dividing plate of fine mesh, and multiple-level stack gets up, and between mud powder, is provided with space, with normal temperature air, mud powder is carried out again air-dryly, moisture percentage in sewage sludge is reduced to 45% left and right; Stacking mud powder after air-dry is sent into mummification groove, turn over throwing with turning over polishing apparatus, carry out air-dry with normal temperature air to mud powder simultaneously, moisture percentage in sewage sludge is reduced to below 30%, minimumly can reach 10%, thereby realize rapidly the drying process of mud, and reach the lower mummification effect of water ratio in mud.
According to the water ratio difference of wet mud supplied materials, the utility model can select to carry out different pre-treatment step, as for the higher mud of water ratio (if water ratio is higher than 80%), employing is carried out mechanism filter-pressing after mixing with back-mixing dewatered sludge, make its water ratio reach 60%-70%, wet mud after press filtration forms sludge cake, and then carries out the steps such as fragmentation, pulverizing, form the laggard windrow of mud powder that particle diameter is less folded air-dry and turn over throw air-dry.For the lower mud of water ratio (if water ratio is at 60%-70%), can directly carry out the pre-treatment of fragmentation, pulverizing, form mud powder laggard windrow folded air-dry and turn over the process drying.
Compared with prior art, sludge drying method of the present utility model and system have: (1), without external heat source, is about 10% by sludge drying to water ratio; (2) energy containing of mud fully retains, and can further realize recycling; (3) can process wet mud, also can process other wet stocks, particularly drying rate be there is no the wet stock of particular requirement, as wet wood chip, corn cob slag, the dregs of a decoction, manioc waste, bagasse, mud coal, mineral aggregate etc.; (4) optimized mechanism filter-pressing, stacking mummification and turned over drying feature separately, having obtained the mummification effect than single drying method mummification speed faster and Geng Jia.
Brief description of the drawings
Fig. 1 is the schema that the utility model sludge drying system carries out sludge drying;
Fig. 2 is the structural representation of the sludge drying system that discloses of the utility model the first preferred embodiment, wherein turns over mummification groove in drying chamber and adopts fixed mummification groove;
Fig. 3 is the structural representation of the sludge drying system that discloses of the utility model the second preferred embodiment, and the mummification groove wherein turning in drying chamber adopts rotary type mummification groove.
Element numbers in figure
E Foerderanlage 1-1,1-2,1-3,1-4,1-5, stirring mixer 2, mechanism filter-pressing device 3, crusher 4, pulverizer 5, duster 6, dividing plate 7 with mesh, mummification air cleaning unit 8, stacking mummification chamber 9, laterally gas blower 10,15, longitudinally gas blower 11,16, induced draft fan 12, the stacking mud 13 of being opened by baffle for separating, turns over drying chamber 14, turns over polishing apparatus 17, mummification groove 18, induced draft fan 19, turns over and throws spiral 20.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out to clear, complete description.
Shown in Fig. 1, Fig. 2, the sludge drying system that the utility model discloses, comprise sludge conveyer 1-1,1-2,1-3,1-4,1-5, dividing plate 7 for layering, stacking mummification chamber 9, turn over the top spray device 8 that drying chamber 14 and mummification purifying air are used, in described stacking mummification chamber 9, be provided with gas blower 10,11, described in turn over and in drying chamber 14, be provided with mummification groove 18, turn over polishing apparatus 17 and gas blower 15,16.Sludge drying system of the present invention adopts machinery to press dry, stacking air-dry and turn over and throw the wet mummification of mud of the drying method of air-dry syllogic, after first dewatered sludge powder and wet mud being mixed, carry out preliminary mummification through mechanism filter-pressing, again by mud cake pulverize after stacking air-dry, finally semi-dry sludge powder put into mummification groove turn over throw air-dry.The sludge drying system disclosing in conjunction with the utility model the first preferred embodiment, the process of sludge drying specifically comprises:
The first, dewatered sludge powder and wet mud are sent in stirring mixer 2 and mixed with e Foerderanlage 1-1.The water content requirement <25% of dewatered sludge powder, the ratio of dry mud and wet mud is generally 1: 1.5～and 1: 6.5, dewatered sludge powder is synchronizeed and is inputted in proportion and stir evenly with wet mud.
The second, with e Foerderanlage 1-2, the mud mixing is sent into mechanism filter-pressing device 3 and carry out press filtration.The preferred multidirectional directly pressing type mechanism filter-pressing of mode of press filtration, without to mud dilution, pumping.Moisture percentage in sewage sludge after press filtration reaches 60%～70%, and preferably 65%.
The 3rd, with e Foerderanlage 1-3, the sludge cake after press filtration is sent into crusher 4 and carry out fragmentation.The broken preferred shearing fragmentation of mode, the mud size after fragmentation is at 5～30mm × 5～30mm.
The 4th, with e Foerderanlage 1-4, the mud granule after fragmentation is sent into pulverizer 5 and pulverize.The mode of pulverizing is preferably twined formula and pulverizes, and the mud after pulverizing forms mud powder, and its particle diameter, at 0.1-3mm, also comprises the mud grain that some particle diameters are larger in this mud powder.
The 5th, with e Foerderanlage 1-5 by pulverize after mud powder send into duster 6, loose powder machine 6 preferred template formula dusters.By duster 6, mud powder is disperseed to be laid on the dividing plate 7 of fine mesh, between mud powder, there is space, dividing plate 7 gauze that preferably employing mesh is less than mud powder footpath is as dividing plate, gauze is strengthened by skeleton, gauze with skeleton is zig-zag type continuously by spaced apart the layering of mud powder, one deck mud powder one deck gauze, is beneficial to ventilate.For instance, stacking mud bisque height is 3cm, and the stacking number of plies is 20 layers.
The 6th, the multilayer insulating panel 7 heap poststacks that install mud powder are sent into the folded air-dry processing of windrow of going forward side by side in stacking normal temperature air mummification chamber (the lower stacking mummification chamber of being called for short) 9.In stacking mummification chamber 9, be provided with horizontal gas blower 10, longitudinal gas blower 11, this horizontal gas blower 10 and longitudinally gas blower 11 are for carrying out air-dry to the stacking mummification chamber fresh normal temperature air of 9 interior introducing to mud powder, the wind direction of gas blower often at regular intervals (as 6 hours) is changed, with make mud powder evenly, mummification fast.
The 7th, after stacking air-dry certain hour (as 12 hours), semi-dry sludge powder on dividing plate 7 is sent into and turned in the fixed mummification groove 18 of throwing in normal temperature air mummification chamber (lower abbreviation turned over drying chamber) 14, turn over and in drying chamber 14, be also provided with horizontal gas blower 15, longitudinal gas blower 16, this horizontal gas blower 15 and longitudinally gas blower 16 are for turning over and throw air-dryly mud powder to turning over the fresh normal temperature air of the interior introducing in drying chamber 14, and the wind direction of gas blower also can be at regular intervals as changed for 6 hours.Turn over polishing apparatus 17 the mud powder in mummification groove 18 is turned over to throwing, be beneficial to mud powder and contact with air.The described preferred rake of polishing apparatus of turning over is turned over polishing apparatus, and it can stir like this mud powder and can advance to the mud powder in mummification groove is all turned over to throwing along mummification groove again along the longitudinal to-and-fro movement of mummification groove 18.The movement velocity of turning over polishing apparatus 17 is thrown one time as good (as 100m/h) all mud powder are turned within the default time, waits and turns over after drying complete, and dry mud powder is scraped from mummification groove 18 by scraper plate.
The 8th, induced draft fan 12,19, respectively by stacking mummification chamber 9 with turn over wet air in drying chamber 14 and introduce top spray system 8, carries out purifying treatment.Top spray system 8 comprises the atomizing spray pipeline of being located at whole anhydration system top, on pipeline, be provided with atomizer, spray region is divided into water spray region and alkali lye spray region, and some special mud also increases acid solution spray region to carry out further environmental protection treatment.Because sprinkling system 8 is located at whole anhydration system top, and area is larger, and it adopts large volume, heavy caliber, hyperchannel atomizing spray pipeline, makes the effect of spray cleaning processing better, and the air after spray cleaning can be arranged outward.
Shown in Fig. 1, Fig. 3, the sludge drying system that the utility model the second embodiment discloses, the desiccation apparatus of itself and the first embodiment is basic identical, the key distinction is, the described mummification groove 18 turning in drying chamber 14 is rotary type mummification groove 18, turn over polishing apparatus 17 and turn over polishing apparatus for stirring, be embedded with to turn over and throw spiral 20 on mummification groove inwall, stirring is turned over polishing apparatus 17 and is longitudinally arranged on the drying Shi14 center of turning over.
Send in the rotary type mummification groove 18 that turns over 14 li of drying chambers through stacking semi-dry sludge pruinescence after air-dry, mud pruinescence turns over to be thrown spiral 20 and drives up and down and stir, and stirs to turn over polishing apparatus 17 and further stir mud powder, makes mud powder turn over sufficiently uniformly throwing.Gas blower 15 is to the interior air blast of mummification groove 18, and normal temperature air fully contacts mud powder, and it is air-dry that throwing is turned in realization.
Technology contents of the present utility model and technical characterictic have disclosed as above; but those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; therefore; the utility model protection domain should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present utility model and modifications, and contained by present patent application claim.
Claims (9)
1. a sludge drying system, it is characterized in that, comprise sludge pretreatment device, decker, stacking mummification chamber, turn over drying chamber and mummification air cleaning unit, the indoor gas blower that is provided with of described stacking mummification, the described indoor mummification groove that is provided with of drying that turns over, turn over polishing apparatus and gas blower, described sludge pretreatment device is prepared into mud powder by the mud with certain water ratio and is sprinkling upon on described decker, described decker is undertaken stacking by the dividing plate that is furnished with mud powder, described stacking mummification chamber is for carrying out air-dry processing to the mud on decker, described the drying chamber of turning over is for turning over throwing drying and other treatment to air-dry mud after treatment, the described polishing apparatus that turns over is installed in described mummification groove, and move back and forth along described mummification groove, turn over throwing with the mud powder in mummification groove, described gas blower is for providing certain speed mobile normal temperature mummification air, and described mummification air cleaning unit is used for carrying out purifying treatment from stacking mummification chamber and the mummification air that turns over the discharge of drying chamber.
2. sludge drying system according to claim 1, it is characterized in that: described sludge pretreatment device comprises crusher, pulverizer and duster, predry sludge crushing is become little clod by described crusher, little clod is further ground into small particle size mud powder by pulverizer, and duster disperses mud powder to sow on described dividing plate.
3. sludge drying system according to claim 2, is characterized in that: described sludge pretreatment device also comprises that machinery press dry device, for wet mud is pressed dry to pre-treatment.
4. sludge drying system according to claim 1, is characterized in that: described mummification groove is rotary type mummification groove.
5. sludge drying system according to claim 4, it is characterized in that: in described rotary type mummification groove, be provided with and turn over throwing spiral, turn over throw spiral be fixed on mummification groove inwall, mud powder along with rotary type mummification groove rotate and by turned over throw spiral take to eminence fall realize stir.
6. according to the sludge drying system described in claim 4 or 5, it is characterized in that: in described rotary type mummification groove, be provided with rake or oar blade type turns over polishing apparatus.
7. sludge drying system according to claim 1, is characterized in that: described decker preferably adopts gauze that mesh is less than mud powder footpath as dividing plate, and gauze is supported by skeleton.
8. sludge drying system according to claim 1, it is characterized in that: described mummification air cleaning unit is the top spray device that is arranged at described sludge drying system top, described top spray device comprises spray piping and is arranged at the atomizer on spray piping.
9. sludge drying system according to claim 8, is characterized in that: described stacking mummification chamber and turn over the indoor mummification air of drying and introduced in described top spray device by induced draft fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122727.2U CN203833784U (en) | 2014-03-18 | 2014-03-18 | Sludge drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122727.2U CN203833784U (en) | 2014-03-18 | 2014-03-18 | Sludge drying system |
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| CN203833784U true CN203833784U (en) | 2014-09-17 |
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| CN201420122727.2U Expired - Fee Related CN203833784U (en) | 2014-03-18 | 2014-03-18 | Sludge drying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819071A (en) * | 2014-03-18 | 2014-05-28 | 王兢 | Sludge drying method and system |
| CN108178468A (en) * | 2017-12-27 | 2018-06-19 | 中运建设控股有限公司 | A kind of rolling absorption type sludge harmless treatment method |
-
2014
- 2014-03-18 CN CN201420122727.2U patent/CN203833784U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819071A (en) * | 2014-03-18 | 2014-05-28 | 王兢 | Sludge drying method and system |
| CN108178468A (en) * | 2017-12-27 | 2018-06-19 | 中运建设控股有限公司 | A kind of rolling absorption type sludge harmless treatment method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20170318 |
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| CF01 | Termination of patent right due to non-payment of annual fee |