CN204093152U - The spiral pressing dehydrator that a kind of Treatment of Sludge is special - Google Patents
The spiral pressing dehydrator that a kind of Treatment of Sludge is special Download PDFInfo
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- CN204093152U CN204093152U CN201420322731.3U CN201420322731U CN204093152U CN 204093152 U CN204093152 U CN 204093152U CN 201420322731 U CN201420322731 U CN 201420322731U CN 204093152 U CN204093152 U CN 204093152U
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Abstract
The utility model discloses the spiral pressing dehydrator that a kind of Treatment of Sludge is special, comprise support body, drive unit, borded pile, screen cylinder, helical blade, described drive unit and screen cylinder are fixed on support body, described borded pile is arranged in screen cylinder, helical blade is arranged on borded pile, described borded pile connecting drive device, and screen cylinder one end is provided with charging aperture, the other end is provided with discharging opening, and described screen cylinder charging aperture one end is lower than discharging opening one end.Spiral pressing dehydrator of the present utility model can realize continuous dehydration process, and the corollary equipment therefore also can process continuously, thus eliminates complicated operation control.. spiral pressing dehydrator structure of the present utility model is simple, the slow-speed of revolution, and the parts be driven in rotation are few, therefore needs the few easy workout part changed and maintenance cost is cheap.The spiral pressing dehydrator slow-speed of revolution of the present utility model, low noise, friction, can use the simple machine of structure to install stand.The spiral pressing dehydrator slow-speed of revolution of the present utility model, required operation power is little, therefore day-to-day operation low cost.The utility model achieves the complete utilization of mud, and noresidue, nothing discharge, achieve innoxious, the resource of mud.
Description
Technical field
The utility model belongs to field of Environment Protection, is specifically related to the spiral pressing dehydrator that a kind of Treatment of Sludge is special.
Background technology
Mud is the product after sewage disposal, is a kind of extremely complicated heterogeneous body be made up of organic relic, microorganism, inorganic particle, colloid etc.The key property of mud is moisture content high (can up to more than 99%), and content of organics is high, and easily corruption is smelly, and particle is comparatively thin, and proportion is less, jelly liquid.It is the concentrated thing between liquid and solid, can transport with pump, but it is difficult to carry out Separation of Solid and Liquid by sedimentation.
Mud refers to sediment, particle and floating thing with producing during the process waste water such as Physical, chemical method, physical-chemical process and bioanalysis.Mud refers generally to the concentrated thing between liquid and solid, can use transport pump, but it is difficult to carry out Separation of Solid and Liquid by sedimentation.Concentration of suspension, generally 1% ~ 10%, is usually called mud lower than this concentration.Due to source and the method for treating water difference of mud, the sludge quality of generation differs, and the kind of mud is a lot, classification more complicated.
Typical sludge treatment technique flow process, comprises four process or disposal stage.First stage is sludge condensation, and main purpose makes mud tentatively subtract appearance, reduces volume or the place capacity of subsequent treatment structures; Second stage is sludge digestion, makes the organic substance decomposing in mud; Phase III is sludge dewatering, makes mud subtract appearance further; Fourth stage is sludge treatment, adopts certain approach to be dissolved by final mud.Above in the clear liquid that produces of each stage or filtrate still containing a large amount of polluters, thus should send back in sewage disposal system and be processed.Above typical sludge treatment technique flow process, can make mud after treatment, realizes " Four Modernizations ":
(1) minimizing: because sludge moisture content is very high, volume is very large, and in mobility.After above flow processing, sludge volume reduces to ten original parts, and becomes solid-state by liquid conversion, is convenient to transport and dissolves.
(2) stabilisation: in mud, content of organics is very high, very easily corrupt and produce stench.After the process of digestion phase in above flow process, putrefactive partial organic substances is decomposed conversion, and not easily corrupt, stench reduces greatly, convenient transport and disposing.
(3) innoxious: in mud, especially in primary sludge, containing a large amount of pathogen, parasitic ovum and virus, easily cause infectious disease large area to propagate.Digestion phase in above flow process, can kill most relation by marriage worm's ovum, pathogen and virus, greatly improve the sanitary index of mud.
(4) resource: mud is a kind of resource, wherein containing a lot of heat, its calorific value between 10000 ~ 15000kJ/kg (dry mud), higher than Coal and coke.In addition, also containing abundant N P and K in mud, be the organic fertilizer with higher fertilizer efficiency.By the digestion phase in above flow process, organic matter can be changed into biogas, heat wherein be utilized, also can further improve its fertilizer efficiency simultaneously.The technique that sludge condensation often adopts has gravity concentration, centrifugal concentrating and floatation thickening etc.Sludge digestion can be divided into anaerobic digestion and the large class of aerobic sigestion two.Sludge dewatering can be divided into nature mummification and the large class of mechanical dehydration two.Conventional mechanical dehydration technique has belt type filter-pressing dehydration plant, centrifugal dehydration etc.The approach of sludge treatment is a lot, mainly contains agricultural use, sanitary landfills, burning and production construction material etc.
Be more than typical sludge treatment technique flow process, obtain in various places and generally adopt.But various processing method all also exists a lot of deficiency.Long processing period or consume the energy large.
Utility model content
The utility model object is to provide the special spiral pressing dehydrator of a kind of Treatment of Sludge.
The technical solution of the utility model is: a kind of method of Treatment of Sludge, comprises the steps:
The moisture content of mud is adjusted to 60-70% by a,
The mud that a obtains by b carries out low temperature pyrolyzer, collects cracked gas,
Cracked residue after b step process is heated to 1300 ~ 1500 DEG C by c, makes organic compound combustion in mud,
Residuals after burning is used for making glass or cement as inorganic additive by d.
Use spiral pressing dehydrator to adjust moisture content in step a.
Spiral pressing dehydrator comprises support body, drive unit, borded pile, screen cylinder, helical blade, described drive unit and screen cylinder are fixed on support body, described borded pile is arranged in screen cylinder, helical blade is arranged on borded pile, described borded pile connecting drive device, screen cylinder one end is provided with charging aperture, and the other end is provided with discharging opening, and described screen cylinder charging aperture one end is lower than discharging opening one end.Preferably make screen cylinder inclination 5-10 °.So just can be beneficial to anti-sealing to flow under the influence of gravity in the mud after concentrating, thus improve dehydration rate.
In order to strengthen squeezing effect, improving dehydration rate, following several mode can be adopted:
The first, screen cylinder reduces to discharging opening one end internal diameter gradually from charging aperture one end.
The second, makes the spiral distance between helical blade reduce gradually from charging aperture one end to discharging opening one end.
The third, the diameter of borded pile increases from charging aperture one end gradually to discharging opening one end.
Above-mentioned three kinds of modes can be used alone, and also can be used in conjunction with each other.
Further, in step b, the temperature of low temperature pyrolyzer is 200-450 DEG C.Because mud main component is fat, protein, carbohydrate and cellulose, can realize cracking at 200 DEG C-450 DEG C becomes oil, not solidifying (combustibility) property gas.
Further, the formula making cement in steps d is: portland cement who knows 70-75 weight portion, inorganic additive 5-10 weight portion, land plaster 15-20 weight portion.
Preferably, the formula making cement is: portland cement who knows 72 weight portions, inorganic additive 8 weight portion, land plaster 16 weight portion.
The utility model compared with prior art tool has the following advantages:
1. spiral pressing dehydrator of the present utility model can realize continuous dehydration process, and the corollary equipment therefore also can process continuously, thus eliminates complicated operation control.
2. spiral pressing dehydrator structure of the present utility model is simple, the slow-speed of revolution, and the parts be driven in rotation are few, therefore needs the few easy workout part changed and maintenance cost is cheap.
3. the spiral pressing dehydrator slow-speed of revolution of the present utility model, low noise, friction, can use the simple machine of structure to install stand.
4. the spiral pressing dehydrator slow-speed of revolution of the present utility model, required operation power is little, therefore day-to-day operation low cost.
5. the utility model achieves the complete utilization of mud, and noresidue, nothing discharge, achieve innoxious, the resource of mud.
Accompanying drawing explanation
Fig. 1 is the structural representation of spiral pressing dehydrator.
In figure, Reference numeral is: 1-support body, 2-drive unit, 3-screen cylinder, 4-borded pile, 5-charging aperture, 6-helical blade, 7-discharging opening.
Detailed description of the invention
A method for Treatment of Sludge, comprises the steps:
The moisture content of mud is adjusted to 60-70% by a,
The mud that a obtains by b carries out low temperature pyrolyzer, collects cracked gas,
Cracked residue after b step process is heated to 1300 ~ 1500 DEG C by c, makes organic compound combustion in mud,
Residuals after burning is used for making glass or cement as inorganic additive by d.
Respectively each step is described in detail below:
Get the mud of sewage treatment plant, recording its moisture content is 97.3%, adopts spiral pressing dehydrator to concentrate, and adjustment moisture content is to 60-70%.
The spiral pressing dehydrator adopted comprises support body, drive unit, borded pile, screen cylinder, helical blade, described drive unit and screen cylinder are fixed on support body, described borded pile is arranged in screen cylinder, helical blade is arranged on borded pile, described borded pile connecting drive device, screen cylinder one end is provided with charging aperture, and the other end is provided with discharging opening, and described screen cylinder charging aperture one end is lower than discharging opening one end.Preferably make screen cylinder inclination 5-10 °.So just can be beneficial to anti-sealing to flow under the influence of gravity in the mud after concentrating, thus improve dehydration rate.
In order to strengthen squeezing effect, improving dehydration rate, following several mode can be adopted:
The first, screen cylinder reduces to discharging opening one end internal diameter gradually from charging aperture one end.
The second, makes the spiral distance between helical blade reduce gradually from charging aperture one end to discharging opening one end.
The third, the diameter of borded pile increases from charging aperture one end gradually to discharging opening one end.
Above-mentioned three kinds of modes can be used alone, and also can be used in conjunction with each other.
The borded pile of spiral pressing dehydrator is arranged in the cylinder be made up of screen cylinder, and mud reduces gradually from charging aperture to the volume of discharging opening, and mud is also compressed gradually.Make solid in mud and fluid separation applications by compression, filtrate is discharged by the mesh of screen cylinder.
The feature of spiral pressing dehydrator:
1. can realize continuous dehydration process, the corollary equipment therefore also can process continuously, thus eliminates complicated operation control.
2. structure is simple, the slow-speed of revolution, and the parts be driven in rotation are few, therefore needs the few easy workout part changed and maintenance cost is cheap.
3. the slow-speed of revolution, low noise, friction, can use the simple machine of structure to install stand.
4. the slow-speed of revolution, required operation power is little, therefore day-to-day operation low cost.
5. easily realize airtight construction, the gas produced when can solve foul smell problem simply and reclaim processed.
6. structure is simple, and regulate, maintenance position is few, daily management operation is simple.
7. structure is simple, and compared with the dewaterer of other kinds, comprehensive cost is cheap.
In step b, the temperature of low temperature pyrolyzer is 200-450 DEG C.Because mud main component is fat, protein, carbohydrate and cellulose, can realize cracking at 200 DEG C-450 DEG C becomes oil, not solidifying (combustibility) property gas.
The formula making cement in steps d is: portland cement who knows 70-75 weight portion, inorganic additive 5-10 weight portion, land plaster 15-20 weight portion.
Preferably, the formula making cement is: portland cement who knows 72 weight portions, inorganic additive 8 weight portion, land plaster 16 weight portion.
The utility model achieves the complete utilization of mud, and noresidue, nothing discharge, achieve innoxious, the resource of mud.
The above embodiment only have expressed the detailed description of the invention of the application, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the application's protection domain.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from technical scheme design, can also make some distortion and improvement, these all belong to the protection domain of the application.
Claims (3)
1. the spiral pressing dehydrator that a Treatment of Sludge is special, it is characterized in that, comprise support body, drive unit, borded pile, screen cylinder, helical blade, described drive unit and screen cylinder are fixed on support body, and described borded pile is arranged in screen cylinder, and helical blade is arranged on borded pile, described borded pile connecting drive device, screen cylinder one end is provided with charging aperture, and the other end is provided with discharging opening, and described screen cylinder charging aperture one end is lower than discharging opening one end.
2. the spiral pressing dehydrator that a kind of Treatment of Sludge according to claim 1 is special, is characterized in that, screen cylinder inclination 5-10 °.
3. the spiral pressing dehydrator that a kind of Treatment of Sludge according to claim 1 and 2 is special, is characterized in that, screen cylinder reduces to discharging opening one end internal diameter gradually from charging aperture one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322731.3U CN204093152U (en) | 2014-06-18 | 2014-06-18 | The spiral pressing dehydrator that a kind of Treatment of Sludge is special |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322731.3U CN204093152U (en) | 2014-06-18 | 2014-06-18 | The spiral pressing dehydrator that a kind of Treatment of Sludge is special |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204093152U true CN204093152U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420322731.3U Expired - Fee Related CN204093152U (en) | 2014-06-18 | 2014-06-18 | The spiral pressing dehydrator that a kind of Treatment of Sludge is special |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204093152U (en) |
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2014
- 2014-06-18 CN CN201420322731.3U patent/CN204093152U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20170618 |