CN108117240A - A kind of sludge treating system and processing method - Google Patents
A kind of sludge treating system and processing method Download PDFInfo
- Publication number
- CN108117240A CN108117240A CN201810098581.5A CN201810098581A CN108117240A CN 108117240 A CN108117240 A CN 108117240A CN 201810098581 A CN201810098581 A CN 201810098581A CN 108117240 A CN108117240 A CN 108117240A
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- Prior art keywords
- sludge
- desiccation
- treating system
- drying
- dehydration
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides a kind of sludge treating system and processing method, which is characterized in that sludge treating system includes sludge dehydration device and mud drying device.Sludge dehydration device is carried out dehydrating sludge；Mud drying device carries out drying and other treatment to the sludge after dehydration, wherein, mud drying device includes the first desiccation apparatus and the second desiccation apparatus, and the first desiccation apparatus carries out sludge preliminary desiccation and is molded sludge, and the second desiccation apparatus dries sludge.The twin-screw extruder drying desiccation machine that the present invention selects carries out preliminary desiccation to sludge by screw extruding and is molded sludge, subsequently shaping sludge is dried via the conduction oil device being integrated in equipment, the dryer is without using steam desiccation, there is universality to Treatment of Sludge factory, and the equipment takes up little area, low energy consumption.
Description
Technical field
The present invention relates to sludge treatment field, in particular to a kind of sludge treating system and processing method.
Background technology
Sludge is the inevitable outcome in sewage treatment plant's biological treatment process, and volume typically constitutes from treated sewage volume
0.5%-1%, and the processing cost of sludge accounts for sewage plant overall running cost 40%-50%.Sludge is arranged with the development of economy
High-volume also accordingly increase, sludge feature be moisture content is high, volume is big, easily corruption, generate stench, proportion is smaller, particle is thinner,
Moisture content must be dealt carefully with and disposing sludge between 99.2%~99.8%.
The final safety consumption of municipal sludge includes handling and disposes two stages, and processing stage is generally sludge stabilization
It is change, minimizing and innoxious stage, main to include concentration (conditioning), dehydration, anaerobic digestion, aerobic sigestion, lime stabilization, heap
Fertilizer, drying and incineration etc..The disposal stage is generally the consumption stage after Treatment of Sludge, generally comprises land use, landfill, building
Material use etc..
Sludge heat drying is divided into following 3 kinds of technology types according to the way of contact of hot working fluid and sludge：Direct heat transfer formula
(heat convection type), indirect heat transmission type (thermal conductivity), direct-indirect combined heat formula.Wherein, direct-type drying equipment is by spraying
Desiccation machine, belt-type drying machine, box desiccation machine etc.；Indirect type drying equipment has blades type drying machine, Disc type drier, thin layer
Desiccation machine, rotary drum desiccation machine etc.；Directly-indirectly combined heat formula equipment have mixing belt sludge drying machine, fluid bed sludge
Desiccation machine etc..
In existing sludge dehydrating and drying system, sludge is by the dewatering system of 99.5% dehydration to 80% mostly using centrifugation
Dewaterer and plate and frame filter press, centrifugal dehydrator energy consumption is big and noise is larger, and plate and frame filter press energy consumption is big and operating environment is poor.It is existing
Some sludge drying techniques, direct desiccation energy transformation ratio is high but generates substantial amounts of flue gas, need to carry out gas cleaning processing, take up an area
Area is big.Indirectly drying process energy consumption is high, energy conversion rate is relatively low and needs steam or conduction oil, and sewage treatment plant does not have mostly
Standby steam supplies condition.
It is, therefore, desirable to provide a kind of sludge treating system, to solve the above problems at least partly.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of sludge treating system, which is characterized in that the Treatment of Sludge
System includes：
Sludge dehydration device, the sludge dehydration device are carried out dehydrating sludge；And
Mud drying device, the mud drying device carry out drying and other treatment to the sludge after the dehydration,
Wherein, the mud drying device includes the first desiccation apparatus and the second desiccation apparatus, first desiccation apparatus
Preliminary desiccation is carried out to sludge and is molded sludge, second desiccation apparatus dries the sludge.
In one example, second desiccation apparatus dries the sludge using conduction oil.
In one example, second desiccation apparatus includes conduction oil dryer.
In one example, first desiccation apparatus, which includes twin-screw extruder, dries desiccation machine.
In one example, the sludge dehydration device includes rotary squeezing dewaterer.
In one example, the sludge treating system further includes the Odor control dress being connected with the mud drying device
It puts, the odor treating device handles the foul smell generated during the drying and other treatment.
In one example, the odor treating device includes washer, moisture trap and/or exhaust blower.
In one example, the sludge treating system further includes the mud medicine mixing dress being connected with the sludge dehydration device
It puts, before the dehydration is carried out, the sludge and the medicament mixed flocculation in the mud medicine mixing device.
In one example, the sludge treating system, which further includes, is arranged on the sludge dehydration device and the sludge drying
Sludge delivery pump between device, the delivery pump do sludge pumping to the sludge come out from the sludge dehydration device
During makeup is put.
The invention also discloses a kind of method for sludge treatment, which is characterized in that the described method includes：
Step 1)：Sludge is carried out dehydrating；
Step 2)：Drying and other treatment is carried out to the sludge after the dehydration, the drying and other treatment includes：First is dry
Change operation and the second desiccation operation, preliminary desiccation is carried out to sludge in first desiccation operation and be molded sludge,
The sludge is dried in the second desiccation operation.
In one example, in second desiccation operation, the sludge is dried using conduction oil.
In one example, further included during the drying and other treatment to the foul smell generated during the drying and other treatment into
The step of row processing.
In one example, the sludge is carried out dehydrating by the method that rotary squeezing is dehydrated.
In one example, the step that the sludge and medicament are carried out to mixed flocculation is further included before the dehydration is carried out
Suddenly.
Sludge treating system floor space according to the present invention is small, low energy consumption, noise is low；And because the dewaterer is totally-enclosed
Formula, therefore revealed without foul smell, operating environment is good；Housing construction is simple, and the slow-speed of revolution is not likely to produce abrasion, and no vulnerable part exempts to tie up
Shield.Twin-screw extruder that the present invention selects drying desiccation machine preliminary desiccation is carried out to sludge by screw extruding and make sludge into
Type subsequently dries shaping sludge via the conduction oil device being integrated in equipment, sludge is made to reach desiccation effect, the baking
Dry machine is without using steam desiccation, and to Treatment of Sludge factory with universality, and the equipment takes up little area, and low energy consumption.
Description of the drawings
The drawings below of the present invention is used to understand the present invention in this as the part of the present invention.Shown in the drawings of this hair
Bright embodiment and its description, principle used to explain the present invention.
In attached drawing：
Fig. 1 is the schematic diagram of the sludge treating system of one embodiment of the present of invention；And
Fig. 2 is the flow chart of the method for sludge treatment of one embodiment of the present of invention.
Specific embodiment
In the following description, a large amount of concrete details are given in order to provide more thorough understanding of the invention.So
And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid with the present invention obscure, for some technical characteristics well known in the art not into
Row description.
In order to thoroughly understand the present invention, detailed method and step and/or structure will be proposed in following description.Obviously,
The execution of the present invention is not limited to specific details appreciated by those skilled in the art.Presently preferred embodiments of the present invention is detailed
It is described as follows, however in addition to these detailed descriptions, the present invention can also have other embodiment.
It should be appreciated that the present invention can be implemented in different forms, and it should not be construed as being limited to what is proposed here
Embodiment.On the contrary, providing these embodiments disclosure will be made thoroughly and complete, and will fully convey the scope of the invention to
Those skilled in the art.In the accompanying drawings, for clarity, the size and relative size in Ceng He areas may be exaggerated.From beginning to end
Same reference numerals represent identical element.
It should be appreciated that it when the term " comprising " and/or " including " is used in this specification, indicates described in presence
Feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of other one or more features, entirety,
Step, operation, element, component and/or combination thereof." one " of singulative, "one" and " described/should " be also intended to include
Plural form, unless context is expressly noted that other mode.
In existing sludge dehydrating and drying system, sludge is by the dewatering system of 99.5% dehydration to 80% mostly using centrifugation
Dewaterer and plate and frame filter press, centrifugal dehydrator energy consumption is big and noise is larger, and plate and frame filter press energy consumption is big and operating environment is poor.It is existing
Some sludge drying techniques, direct desiccation energy transformation ratio is high but generates substantial amounts of flue gas, need to carry out gas cleaning processing, take up an area
Area is big.Indirectly drying process energy consumption is high, energy conversion rate is relatively low and needs steam or conduction oil, and sewage treatment plant does not have mostly
Standby steam supplies condition.
It is an object of the invention to solve the above problems, a kind of new sludge treating system is provided, this practical sludge
Processing system solves the problems, such as that sludge dehydrating and drying system energy consumption is high, and solves sewage disposal using conduction oil integrating device
Factory does not possess the problem of steam.
Embodiment one
As shown in Figure 1, the invention discloses a kind of system that sludge dewatering and desiccation are integrated to processing, sludge of the invention
Processing system 1 includes sludge dehydration device 100, mud drying device 200 and odor treating device 300.Wherein, sludge dewatering fills
100 are put by carrying out rotary squeezing dehydration so that sludge dewatering to sludge.In one example, sludge dehydration device 100 is rotation
Turn extruding-desiccation machine.The rotary squeezing dewaterer is totally enclosed type, therefore is revealed without foul smell that operating environment is good；Body knot
Structure is simple, and the slow-speed of revolution is not likely to produce abrasion, and no vulnerable part is non-maintaining.Mud drying device 200 includes the first desiccation apparatus 210
With the second desiccation apparatus (not shown), the first desiccation apparatus 210 carries out sludge preliminary desiccation and is molded sludge, and second is dry
Makeup, which is put, dries the sludge.In one example, the first desiccation apparatus 210 dries desiccation machine for twin-screw extruder,
Second desiccation apparatus is conduction oil device, e.g., conduction oil dryer, by conduction oil dryer to being squeezed through mud drying device 200
Sludge after molded is dried, and sludge is made to reach desiccation effect.After mud drying device 200 carries out extrusion forming to sludge
Conduction oil is dried, to reduce the moisture content of sludge.In one example, conduction oil dryer is integrated in equipment.In other realities
It applies in example, can also use and commonly use the energy (such as natural gas, coal) to be dried to sludge.Odor treating device 300 is to desiccation
The foul smell generated in processing procedure is handled.Sludge treating system 1 further includes mud medicine mixing device 400, sludge bucket 500, dirt
Mud feed pump 600, sludge delivery pump 700 and sludge send pump 800 outside.Wherein, mud medicine mixing device 400 and sludge dehydration device
100 connections, before being carried out dehydrating, sludge and the medicament mixed flocculation in mud medicine mixing device 400.Sludge bucket 500 is set
Between sludge dehydration device 100 and sludge delivery pump, to contain the sludge come out from sludge dehydration device 100.Sludge conveys
Pump 700 is arranged between sludge dehydration device 100 and mud drying device 200, the dirt that will be come out from sludge dehydration device 100
Mud is pumped in mud drying device 200, and sludge sends one end that pump 800 is arranged on twin-screw extruder drying desiccation machine outside, is used for
The sludge pumping after desiccation is carried out in desiccation machine will be dried from twin-screw extruder to its exterior.
Specifically, mud medicine mixing device 400 includes medicament preparation facilities 410 and mud medicine mixer 420.It is mixed with sludge
The medicament of conjunction is prepared in medicament preparation facilities 410, and the Medicament dispensing device prepared is into mud medicine mixer 420, and sludge is through sludge
Feed pump 600 is pumped in mud medicine mixer 420.More specifically, medicament is added in by chemicals dosing plant in medicament preparation facilities 410,
Medicament adds in mud medicine mixer after being sufficiently mixed with water with having mixer stirring in medicament preparation facilities 410 by dosing screw pump
In 420.
Sludge delivers into mud medicine mixer 420 by sewage sludge feed pump 600, and sludge is filled with medicament in mud medicine mixer 420
Divide mixed flocculation.Mud medicine mixture enters rotary squeezing dewaterer by mud medicine mixer 420, and rotary squeezing dewaterer mixes mud medicine
It closes object and carries out rotary dehydration, dewatered sludge enters sludge bucket 500, and moisture content is 75%~80%.
The feed inlet of sludge delivery pump 700 is flexible coupling with sludge bucket 500 and conveys dewatered sludge as twin-screw squeezes
The feed inlet of pressure drying desiccation machine, sludge enters twin-screw extruder drying desiccation machine, via heat conduction after twin-screw extruder and shaping
Oil drying, makes the moisture content of sludge be down to less than 50%.Wherein, the sludge after desiccation is sent outside pump 800 and be pumped by sludge is
System is external.The foul smell that twin-screw extruder drying desiccation machine has enters odor treating device 300.Filtrate is via filtrate (liquid
900 are discharged into front end Treatment of Sludge.
Odor treating device 300 includes washer 310, moisture trap 320 and exhaust blower 330.Twin-screw extruder is dried
The foul smell that desiccation machine generates initially enters washer 310 to remove the waste odour-gas substance in gas, and treated, and gas enters gas
Separator 320, the moisture in gas is separated, and gas is discharged by exhaust blower 330.
The similar replacement or deformation of individual part or component in this practical sludge treating system each fall within the present invention
Protection domain within.
Sludge treating system floor space of the invention is small, low energy consumption, noise is low；And because the dewaterer is totally enclosed type,
Therefore revealed without foul smell, operating environment is good；Housing construction is simple, and the slow-speed of revolution is not likely to produce abrasion, and no vulnerable part is non-maintaining.
The twin-screw extruder drying desiccation machine that the present invention selects carries out preliminary desiccation to sludge by screw extruding and is molded sludge, after
It is continuous that shaping sludge is dried via the conduction oil device being integrated in equipment, sludge is made to reach desiccation effect, the dryer
Without using steam desiccation, there is universality to Treatment of Sludge factory, and the equipment takes up little area, low energy consumption.
Embodiment two
As shown in Fig. 2, the invention also discloses a kind of method for sludge treatment, the described method includes：
Step 1)：Sludge is carried out dehydrating；
Step 2)：Drying and other treatment is carried out to the sludge after the dehydration, the drying and other treatment includes：First is dry
Change operation and the second desiccation operation, preliminary desiccation is carried out to sludge in first desiccation operation and be molded sludge,
The sludge is dried in the second desiccation operation.
Wherein, in second desiccation operation, the sludge is dried using conduction oil.
Wherein, further included during the drying and other treatment and the foul smell generated during the drying and other treatment is handled
The step of.
Wherein, the sludge is carried out dehydrating by the method that rotary squeezing is dehydrated.
Wherein, before the dehydration is carried out, the step of sludge and medicament are subjected to mixed flocculation is further included.
The method for sludge treatment of the present invention has universality, low energy consumption, odorless without using steam desiccation to Treatment of Sludge factory
Gas is revealed, and operating environment is good.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to
Citing and the purpose of explanation, and be not intended to limit the invention in the range of described embodiment.In addition people in the art
Member is it is understood that the invention is not limited in above-described embodiment, introduction according to the present invention can also be made more kinds of
Variants and modifications, these variants and modifications are all fallen within scope of the present invention.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (14)
1. a kind of sludge treating system, which is characterized in that the sludge treating system includes：
Sludge dehydration device, the sludge dehydration device are carried out dehydrating sludge；And
Mud drying device, the mud drying device carry out drying and other treatment to the sludge after the dehydration,
Wherein, the mud drying device includes the first desiccation apparatus and the second desiccation apparatus, and first desiccation apparatus is to dirt
Mud carries out preliminary desiccation and is molded sludge, and second desiccation apparatus dries the sludge.
2. sludge treating system according to claim 1, which is characterized in that second desiccation apparatus uses conduction oil pair
The sludge is dried.
3. sludge treating system according to claim 2, which is characterized in that second desiccation apparatus is dried including conduction oil
Dry machine.
4. sludge treating system according to claim 1, which is characterized in that first desiccation apparatus is squeezed including twin-screw
Pressure drying desiccation machine.
5. sludge treating system according to claim 1, which is characterized in that the sludge dehydration device includes rotary squeezing
Dewaterer.
6. sludge treating system according to claim 1, which is characterized in that the sludge treating system further include with it is described
The odor treating device of mud drying device connection, the odor treating device is to the foul smell of generation during the drying and other treatment
It is handled.
7. sludge treating system according to claim 6, which is characterized in that the odor treating device include washer,
Moisture trap and/or exhaust blower.
8. sludge treating system according to claim 1, which is characterized in that the sludge treating system further include with it is described
The mud medicine mixing device of sludge dehydration device connection, before the dehydration is carried out, the sludge and medicament are in the mud medicine
Mixed flocculation in mixing arrangement.
9. sludge treating system according to claim 1, which is characterized in that the sludge treating system, which further includes, to be arranged on
Sludge delivery pump between the sludge dehydration device and the mud drying device, the delivery pump will be from the sludge dewaterings
The sludge pumping that device comes out is into the mud drying device.
10. a kind of method for sludge treatment, which is characterized in that the described method includes：
Step 1)：Sludge is carried out dehydrating；
Step 2)：Drying and other treatment is carried out to the sludge after the dehydration, the drying and other treatment includes：First desiccation is grasped
Make and the second desiccation operates, preliminary desiccation is carried out to sludge in first desiccation operation and is molded sludge, described
The sludge is dried in second desiccation operation.
11. according to the method described in claim 10, it is characterized in that, second desiccation operation in, using conduction oil pair
The sludge is dried.
12. it according to the method described in claim 10, it is characterized in that, is further included during the drying and other treatment to described dry
Change the step of foul smell generated in processing procedure is handled.
13. according to the method described in claim 10, it is characterized in that, by rotary squeezing be dehydrated method to the sludge into
Row dehydration.
14. it according to the method described in claim 10, it is characterized in that, is further included before the dehydration is carried out by the dirt
The step of mud and medicament carry out mixed flocculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810098581.5A CN108117240A (en) | 2018-01-31 | 2018-01-31 | A kind of sludge treating system and processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810098581.5A CN108117240A (en) | 2018-01-31 | 2018-01-31 | A kind of sludge treating system and processing method |
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| CN108117240A true CN108117240A (en) | 2018-06-05 |
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| CN201810098581.5A Pending CN108117240A (en) | 2018-01-31 | 2018-01-31 | A kind of sludge treating system and processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133563A (en) * | 2018-06-25 | 2019-01-04 | 王燕 | A kind of hot phase-separating device and separation method of oily waste |
| CN113651516A (en) * | 2021-09-10 | 2021-11-16 | 佛山市赛诺达科技有限公司 | Continuous drying and harmless treatment method for industrial sludge |
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| CN103011546A (en) * | 2012-12-05 | 2013-04-03 | 上海巴安水务股份有限公司 | Two-stage sludge drying and energy recovering system and drying process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20180605 |