CN206872660U - A kind of sludge high-drying is dehydrated reducing device - Google Patents
A kind of sludge high-drying is dehydrated reducing device Download PDFInfo
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- CN206872660U CN206872660U CN201720723740.7U CN201720723740U CN206872660U CN 206872660 U CN206872660 U CN 206872660U CN 201720723740 U CN201720723740 U CN 201720723740U CN 206872660 U CN206872660 U CN 206872660U
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Abstract
The utility model discloses a kind of sludge high-drying to be dehydrated reducing device, is made up of sludge collecting and conveying system, sludge dewatering system, vacuum suction device, steam raising plant and automatic control system；Sludge collecting and conveying system includes sludge-tank, the first sludge pump unit, the second sludge pump unit, surge tank unit；Sludge dewatering system includes the quenched tank of sludge, chemicals dosing plant, high pressure sludge pump unit, filter press unit, mud cake supply unit；Vacuum suction device includes vacuum pump unit, vacuum tube, circulation water pot unit；The utility model, which changes in conventional dehydration technique, has the dehydration limit, the activity and penetration of moisture are improved in heating and the effect of negative pressure, reduce the adhesive force of the internal junction Heshui in sludge in intractable surface adsorption water and microbial cell film, the efficiency of the sludge dewatering of raising, significantly reduce the moisture content of mud cake, the degree that disposably sludge dehydrating and drying to user can be needed, breach sludge press filtration equipment dehydration bottleneck.
Description
Technical field
A kind of sewage-treatment plant is the utility model is related to, it is more particularly to a kind of to be used for city sewage and sludge and trade effluent
The high dewatered sludge degree dehydration reducing device of sludge dewatering decrement.
Background technology
Substantial amounts of sludge can be produced during municipal sewage treatment and Industrial Waste Water Treatments.For municipal sewage treatment,
With the development of domestic sewage disposal cause, sewage plant total process water yield and degree for the treatment of constantly will expand and improve, caused
Sludge quantity also increasingly increases, and its capital construction and operating cost account for total capital construction and operating cost in general sewage plant at home at present
20%~50%.In sewage sludge except containing the nutriment such as substantial amounts of organic matter and abundant nitrogen, phosphorus, also exist heavy metal,
The poisonous and harmful element such as pathogenic bacteria and parasite.The numeral provided according to State Environmental Protection Administration, the at present annual about discharge of China are dirty
There are more than 400 seats, the m3 of daily handling ability 25,340,000 in the m3 of water 40,100,000,000, the municipal sewage plant for being completed operating.By sludge yield
Account for the 0.3% ~ 0.5% of processing water（In terms of moisture content 97%）Calculate, the yield of Chinese city sewage plant sludge is in 7.602 ten thousand m
Between 3/d and 12.67 ten thousand m3/d (in terms of moisture content 97%).Secondary pollution caused by prevent sludge and guarantee sewage disposal
The normal operation and treatment effect of factory, the position that the processing handling problems of sewage sludge are occupied in sewage disposal are increasingly prominent
Go out.
Present circumstances is seen that the core of Treatment of Sludge and difficult point are dewatering technology of mud.Due to China's sludge dewatering technology
Fall behind, cause the moisture percentage in sewage sludge more up to 80-90% after dehydration.After major part municipal sludge Chu Liao sewage treatment plants of China, just
State is filled into unordered interim stacking or simply, do not only take up large amount of land resources, and heavy damage ecological environment, it is special
It is not sewage intrusion underground water, causes part groundwater resources to be difficult to the permanent harm restored, simultaneously as moisture percentage in sewage sludge
Height, the subsequent treatment expense of sewage treatment plant is on the one hand added, meanwhile, disposal, which is brought, after also giving directly affects.
The technique of sludge dewatering treatment includes sludge condensation, mechanical dehydration at present.Sludge generally use agriculture after dehydration
With, landfill or burn method of disposal, following defect problem be present by this several method：
1st, for agricultural：Transport difficult, freight volume are big caused by moisture percentage in sewage sludge is too high, or because of dehydrated sludge cake difficulties in dispersion
Field operation need to be supported by plant equipment, the technology more difficulty is in actual applications present；
2nd, filled：Because the higher soil mechanics property of dehydrated sludge cake moisture content is poor, a large amount of soil need to be mixed into, so as to cause
The volumetric efficiency in soil substantially reduces；Simultaneously too high moisture content can also cause secondary because of the infiltration of leachate to soil
Pollution；
3rd, dehydrated sludge cake directly burns, also because of the low calorific value that can not reach needed for maintenance process self-contained operation of its solid content,
Auxiliary fuel need to be added, processing cost is substantially increased, it is difficult to is born.
The difficulty that the above-mentioned Treatment of Sludge of comprehensive analysis is run into actual applications with disposal technology system, is not difficult to find out dirt
The moisture content of mud is crucial influence factor.Therefore, it is to solve what Treatment of Sludge was run into be permitted at present to reduce moisture percentage in sewage sludge
The key of more problems.
As country is to the increasingly strict of environmental requirement, and the implementation of " ten, soil ", therefore carry out sewage sludge harmlessness, subtract
Quantify the inexorable trend that will develop with recycling treatment as sludge disposal technology.
Utility model content
For above-mentioned problem, the purpose of this utility model is to provide a kind of sludge and subtracts high-efficiency dehydration minimizing, place
Manage device.So as to fundamentally solve problem present in conventional processes, reliable guarantee is provided for the follow-up place of sludge.
The utility model is achieved through the following technical solutions：A kind of sludge high-drying is dehydrated reducing device, is collected by sludge defeated
Send system, sludge dewatering system, vacuum suction device, steam raising plant and automatic control system composition；
The sludge collecting and conveying system includes sludge-tank, the first sludge pump unit, the second sludge pump unit, surge tank list
Member and pipeline, the both ends of the surge tank unit are connected by pipeline and the first sludge pump unit and the second sludge pump unit respectively
Connect, the first sludge pump unit is connected by pipeline with sludge-tank；
The sludge dewatering system includes the quenched tank of sludge, chemicals dosing plant, high pressure sludge pump unit, filter press unit, mud
Cake supply unit and pipeline, wherein the chemicals dosing plant is made up of agitator tank and measuring pump, the quenched tank of sludge passes through pipeline
It is connected respectively with high pressure sludge pump unit and chemicals dosing plant, the high pressure sludge pump unit is connected by pipeline and mud cake supply unit
Connect；
The vacuum suction device includes vacuum pump unit, vacuum tube, circulation water pot unit and pipeline, the vacuum tube with
Filter press unit is connected, and vacuum pump unit both ends are connected by pipeline with vacuum tube and circulation water pot unit respectively；
The steam raising plant includes steam generator and pipeline, and the steam generator passes through pipeline and filter press list
Member connection.
The automatic control system is made up of power source special, distribution and automatic instrument(s).
The utility model compared with prior art, has advantages below and beneficial effect：
1st, the utility model, which changes in conventional dehydration technique, has the dehydration limit, and moisture is improved in heating and the effect of negative pressure
Activity and penetration, reduce internal junction Heshui in sludge in intractable surface adsorption water and microbial cell film
Adhesive force, the efficiency of the sludge dewatering of raising, the moisture content of mud cake is significantly reduced, disposably can be arrived sludge dehydrating and drying
The degree that user needs, breach sludge press filtration equipment dehydration bottleneck.So as to be advantageous to the subsequently disposal to sludge and comprehensive profit
With.
2nd, because the mud pump characteristic after processing is high, it is easy to store, transports, reduces the defeated cost of storage；
3rd, due to after processing sludge it is aqueous low, improve sludge calorific value（>=2500 kilocalories）, it is both favourable to burn, it can also make
For fuel combustion, there is certain economic value.
4th, minimizing is obvious, effectively reduces the sludge treatment expense of sewage treatment plant.
5th, automaticity is high, reduces manually, has a safety feature.
6th, because mud cake water content is low, the requirement for requiring that moisture content is less than 50% in later stage disposal can be met, further to enter
The harmless treatment of row sludge（Carbonization）, there is provided good condition.
7th, under steam and condition of negative pressure, the dosage of the quenched medicament of sludge is reduced（Even without dosing）
Processing cost is saved.
8th, the energy resource consumption of system entirety is low, comprehensive unit power consumption 10KW/t.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, other spies of the present utility model
Sign, objects and advantages will become apparent：
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or two
More than individual.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can also be joined directly together or indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State concrete meaning of the term in the utility model.
As shown in figure 1, a kind of sludge high-drying dehydration reducing device of the present embodiment, by sludge collecting and conveying system, sludge
Dewatering system, vacuum suction device, steam raising plant and automatic control system 13 form；
The sludge collecting and conveying system includes sludge-tank 1, the first sludge pump unit 2, the second sludge pump unit 3, buffering
Tank unit 4 and pipeline, the both ends of the surge tank unit 4 pass through pipeline and the first sludge pump unit 2 and the second sludge pump respectively
Unit 3 is connected, and the first sludge pump unit 2 is connected by pipeline with sludge-tank 1；
The sludge dewatering system includes the quenched tank 5 of sludge, chemicals dosing plant 6, high pressure sludge pump unit 7, filter press unit
8th, mud cake supply unit 9 and pipeline, wherein the chemicals dosing plant 6 is made up of agitator tank and measuring pump, the quenched tank 5 of sludge is logical
Cross pipeline to be connected with high pressure sludge pump unit 7 and chemicals dosing plant 6 respectively, the high pressure sludge pump unit 7 passes through pipeline and mud cake
Supply unit 9 connects；
The vacuum suction device includes vacuum pump unit 10, vacuum tube 11, circulation water pot unit and pipeline, the vacuum
Pipe 11 is connected with filter press unit 8, and the both ends of vacuum pump unit 10 are connected by pipeline and vacuum tube 11 and circulation water pot unit respectively
Connect；
The steam raising plant includes steam generator 12 and pipeline, and the steam generator 12 passes through pipeline and press filtration
Machine unit 8 connects.
The automatic control system 13 is made up of power source special, distribution and automatic instrument(s).
Operation principle of the present utility model is as follows：
1st, sludge conveys：
1）The sludge for coming from sludge of sewage treatment plant pond passes through the first sludge pump unit lifting to surge tank；
2）Sludge in surge tank enters the quenched tank of sludge by the second sludge pump unit.
2nd, sludge dewatering：
1）The sludge of surge tank need to such as carry out quenched, and pipeline mixing dosing is carried out to it by chemicals dosing plant；Without quenched
Sludge, chemicals dosing plant device should be out of service, and closes dosing valve；
2）The sludge in quenched tank is squeezed into filter press by high pressure sludge pump unit to be dehydrated, injects filter press filter board intracavitary
（Filter chamber）Sludge, complete first filtering under the effect of the pressure, now the moisture percentage in sewage sludge in filter press filter chamber is left 70%
It is right.
3rd, sludge condensation and deep dehydration：
1）Steam generator is opened, steam is passed through into filter press filter chamber, for just the sludge of dehydration is carried out in filter chamber
Heating, accelerate the operation of moisture content in sludge from face；
2）Vavuum pump is opened, extracts the air in filter chamber, so that the ready-made 0.03-0.08Mpa negative pressure of filter chamber, in negative pressure bar
Under part, make the dirt in filter chamber do not have in moisture content steam in the presence of, realize rapid evaporation, so as to further reduce sludge it is aqueous
Rate realizes effective decrement of sludge to 30-50%.Mud cake after dehydration is sent to appointed place by outfeed belt conveyor and temporarily deposited,
The processing system for crossing cleaner liquid return sewage sewage treatment plant is handled.
4th, control system：Using PLC program controller PLC patterns, the operation to machine carries out intelligent control, realized to dirt
Mud dehydration process automatically controls, it is ensured that continuity, the security of equipment running process.The labor of worker is also reduced simultaneously
Fatigue resistance.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
In the case where not departing from principle and objective of the present utility model a variety of change, modification, replacement and modification can be carried out to these embodiments,
The scope of the utility model is limited by claim and its equivalent.
Claims (1)
1. a kind of sludge high-drying is dehydrated reducing device, it is characterised in that：By sludge collecting and conveying system, sludge dewatering system, very
Empty air extractor, steam raising plant and automatic control system composition；
The sludge collecting and conveying system include sludge-tank, the first sludge pump unit, the second sludge pump unit, surge tank unit and
Pipeline, the both ends of the surge tank unit are connected by pipeline with the first sludge pump unit and the second sludge pump unit respectively, institute
The first sludge pump unit is stated to be connected with sludge-tank by pipeline；
It is defeated that the sludge dewatering system includes the quenched tank of sludge, chemicals dosing plant, high pressure sludge pump unit, filter press unit, mud cake
Unit and pipeline are sent, wherein the chemicals dosing plant is made up of agitator tank and measuring pump, the quenched tank of sludge is distinguished by pipeline
It is connected with high pressure sludge pump unit and chemicals dosing plant, the high pressure sludge pump unit is connected by pipeline with mud cake supply unit；
The vacuum suction device includes vacuum pump unit, vacuum tube, circulation water pot unit and pipeline, the vacuum tube and press filtration
Machine unit is connected, and vacuum pump unit both ends are connected by pipeline with vacuum tube and circulation water pot unit respectively；
The steam raising plant includes steam generator and pipeline, and the steam generator is connected by pipeline and filter press unit
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723740.7U CN206872660U (en) | 2017-06-21 | 2017-06-21 | A kind of sludge high-drying is dehydrated reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723740.7U CN206872660U (en) | 2017-06-21 | 2017-06-21 | A kind of sludge high-drying is dehydrated reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206872660U true CN206872660U (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720723740.7U Active CN206872660U (en) | 2017-06-21 | 2017-06-21 | A kind of sludge high-drying is dehydrated reducing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110812904A (en) * | 2019-12-19 | 2020-02-21 | 佛山市蓝之鲸科技有限公司 | Ceramic slurry dewatering equipment and operation method thereof |
| CN112094021A (en) * | 2020-09-15 | 2020-12-18 | 江西润达环保科技有限公司 | Low-temperature vacuum sludge filter-pressing drying process method and filter-pressing device |
-
2017
- 2017-06-21 CN CN201720723740.7U patent/CN206872660U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110812904A (en) * | 2019-12-19 | 2020-02-21 | 佛山市蓝之鲸科技有限公司 | Ceramic slurry dewatering equipment and operation method thereof |
| CN112094021A (en) * | 2020-09-15 | 2020-12-18 | 江西润达环保科技有限公司 | Low-temperature vacuum sludge filter-pressing drying process method and filter-pressing device |
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