CN101628781B - Sludge dewatering equipment and sludge dewatering process - Google Patents
Sludge dewatering equipment and sludge dewatering process Download PDFInfo
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- CN101628781B CN101628781B CN2009101021663A CN200910102166A CN101628781B CN 101628781 B CN101628781 B CN 101628781B CN 2009101021663 A CN2009101021663 A CN 2009101021663A CN 200910102166 A CN200910102166 A CN 200910102166A CN 101628781 B CN101628781 B CN 101628781B
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- mud
- filter cloth
- sludge
- filter
- dewater unit
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Abstract
The invention relates to sludge dewatering equipment and a sludge dewatering process for sludge treatment. The dewatering technology comprises the following steps: a flocculating agent is added into the sludge according to the proportion of 0.3-2.0%, is fully stirred by a flocculation mixer and flows to lower filter cloth of a press filter, water flows away by a filter screen under the action of gravity, the sludge becomes thick, and the water content is reduced; the sludge passes through a gravity dewatering area and must be fully pressed in advance and dewatered before entering an extrusion area, a wedge-shaped area slowly clamps the sludge discharged from the gravity area and presses in advance and thickens the sludge sequentially and slowly, the residuary free moisture in a sludge layer is reduced to a lowest degree, the upper and lower distance of two net belts is gradually decreased along with the slow progression of an upper net belt and a lower net belt, the middle sludge layer is gradually hardened, and a residue cake is formed.
Description
Technical field
The present invention relates to a kind of device for dehydrating sladge waste and dewatering process that is used for Treatment of Sludge, belong to device for dehydrating sladge waste and dewatering process and make the field.
Background technology
CN201198463Y, title " device for dehydrating sladge waste " comprising: the slurry conveying machine structure (3) that is used to carry pending water-containing sludge (9); The distributor gear (4) that joins with described slurry conveying machine structure; At least one admits the container from the mud of described distributor gear, and described at least one container can seal and variable volume; Pressing mechanism (6) is used for the water-containing sludge of squeeze receptacle; Pressure exerting arrangement (5) is used for described pressing mechanism is exerted pressure; Described pressing mechanism comprises a plurality of apart from one another by the movable stripper plate of opening (16), and described at least one container is flexible filter bag (17), and each filter bag (17) is placed between the isolated stripper plate, and the opening part of each filter bag is provided with closing device.Its weak point: the one, dewatering efficiency is low; The 2nd, dehydration rate is low, the energy consumption height.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design and a kind ofly can improve glue efficient effectively, can improve the device for dehydrating sladge waste and the dewatering process of dehydration rate again effectively.
Design: in order to realize above-mentioned purpose of design.1, the setting of flocculation agitator is one of technical characterictic of the present invention.The purpose of doing like this is: have long inclined gravity dehydration district by the application, be distributed on the guipure by feeder through the mud after the flocculation treatment, owing to designed enough length, thereby the fluctuation of charging mud had bigger ability to bear, this district has certain appropriate inclination angle, impel the free water that is synchronized with the movement with filter screen to reflux, prolonged the time of staying of treatment media, guarantee to filter as far as possible many free moistures in the gravity district.The characteristics of doing like this are: the consumption of a. flocculant reduces, and operating cost reduces.B. drainage area increases, and bearing capacity strengthens, and disposal ability improves.C. to various material handlings,, make this district's tail end output shaping material at the free water of this stage equal energy filtering more than 80%.D. the race mud of having avoided entering compression roller squeezes the leakage phenomenon.2, the design of wedge shape dewater unit is two of a technical characterictic of the present invention.The purpose of doing like this is: through the mud in gravity dehydration district, before entering crush zone, must carry out fully pre-press-dehydrating to it, otherwise under the situation of crush zone pressurization suddenly, the mud of thickness can be squeezed from the strainer both sides to leak and leak, the mud that this tapered region unloads the gravity district is slowly clamped, it is carried out order precompressed thickening lentamente, the free moisture of remnants in the mud layer is minimized, along with slowly advancing of two guipures up and down, article two, the distance between the upper and lower of guipure reduces gradually, and middle mud layer hardening gradually forms a blob of slag.The characteristics of doing like this are: a. makes the belt filter press operation more reliable and more stable, and disposal ability becomes to maximum.B. avoid pushing the generation of leakage.3, the design of the upper-lower position sequence alternate of two strainers arrangement is three of a technical characterictic of the present invention.The purpose of doing like this is: the upper-lower position sequence alternate of two strainers, to powerful extruding, the shearing force of filter cake generation of clamping, squeeze the press for extracting juice filterings with the moisture overwhelming majority that remains in the mud.This plot structure compactness has reduced the length of strainer, reduces the cost of complete machine.4, the filter cloth conveyer belt that is positioned at filter cloth connecting gear top be provided with cleaning device and by water pump, valve and pipeline to the design that cleaning device supplies water, be four of technical characterictic of the present invention.The purpose of doing like this is: the present invention adopts two to overlap independently rinse-system, is respectively applied for the cleaning of lower filter belt, and band all adopts backwash mode up and down, and water consumption is low, and is effective, and the high pressure nozzle of structure uniqueness is distributed in the airtight water tank, and flushing is convenient.
Technical scheme 1: device for dehydrating sladge waste, it comprises appliance controller and automatic deviation rectifying device, the sludge pump import is communicated with sludge-tank by pipeline and valve, the sludge pump outlet is communicated with the import of flocculation agitator, pipeline is passed through in the powder mixer import, the valve water inlet, powder mixer outlet passing through pipeline, valve is communicated with the measuring pump import, the measuring pump outlet is communicated with the import of flocculation agitator by flowmeter, the outlet of flocculation agitator is directly to the folder of the filter cloth in filter cloth conveying mechanism dewater unit, water receiving tank is positioned at the below of filter cloth folder dewater unit and by pipeline water is discharged, in the mud input wedge shape dewater unit after the outlet of filter cloth folder dewater unit directly will be dewatered in advance, the wedge shape dewater unit exports directly to the sludge cake conveyer belt.
Technical scheme 2: dewatering technology of mud, (1) adds flocculant in the mud in 0.3～2.0% ratio, fully stirs through the flocculation blender, flow on the following filter cloth of filter press, moisture flows away by filter screen under the gravity effect, makes the mud stiff that becomes, and water content reduces; (2) mud in process gravity dehydration district, before entering crush zone, must carry out fully pre-press-dehydrating to it, the mud that this tapered region unloads the gravity district is slowly clamped, and it is carried out order precompressed thickening lentamente, and the free moisture of the remnants in the mud layer is minimized, along with slowly advancing of two guipures up and down, article two, the distance between the upper and lower of guipure reduces gradually, and middle mud layer hardening gradually forms a blob of slag.
The present invention compares with background technology, the one, the setting of flocculation agitator, not only the consumption of flocculant reduces, and operating cost reduces, and drainage area increases, bearing capacity strengthens, disposal ability improves, and to various material handlings, at the free water of this stage equal energy filtering more than 80%, make this district's tail end output shaping material, the more important thing is that the race mud of having avoided entering compression roller squeezes the leakage phenomenon; The 2nd, the design of wedge shape dewater unit not only makes the belt filter press operation more reliable and more stable, and disposal ability becomes to maximum, and avoids pushing the generation of leakage; Three is designs of the upper-lower position sequence alternate arrangement of two strainers, the moisture overwhelming majority that remains in the mud can be squeezed the press for extracting juice filterings.
Description of drawings
Fig. 1 is the schematic diagram of device for dehydrating sladge waste.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1.Device for dehydrating sladge waste, it comprises appliance controller and automatic deviation rectifying device, sludge pump 4 imports are communicated with sludge-tank 1 by pipeline 3 and valve 2, sludge pump 4 outlets are communicated with the import of flocculation agitator 5, powder mixer 18 imports are by pipeline 24, valve 19 water inlets, powder mixer 18 outlets are by pipeline 21, valve 20 is communicated with measuring pump 22 imports, measuring pump 22 outlets are communicated with 5 imports of flocculation agitator by flowmeter 23, flocculation agitator 5 is driven by motor 6 and stirs, the outlet of flocculation agitator 5 is directly to the folder of the filter cloth in filter cloth conveying mechanism dewater unit 7, water receiving tank 17 is positioned at the below of filter cloth folder dewater unit 7 and by pipeline 8 water is discharged, in the mud input wedge shape dewater unit 12 after 7 outlets of filter cloth folder dewater unit directly will be dewatered in advance, 12 outlets of wedge shape dewater unit are directly to sludge cake conveyer belt 13.Described wedge shape dewater unit 12 is made of many compression rollers 26, drive roll 27, big beaming roller 25 and filter cloth, many compression rollers 26 and drive roll 27, big beaming roller 25 undulates are between the upper and lower apart from arranging, and the filter cloth tensioning is arranged on the waveform roll surface that many compression rollers 26 and drive roll 27, big beaming roller 25 constitute.Be positioned at filter cloth connecting gear above and below and be respectively equipped with filter cloth cleaning device 11 and 28 and supply water for cleaning device 11 and 28 by water pump 15, valve 16 and pipeline, the water of sending here from water pump passes through nozzle, with higher pressure injection on filter cloth up and down, with the cleaning filter cloth, make filter cloth keep good water permeability in recycling, flushing system is formed by cleaning bucket, water pipe, valve, nozzle up and down.Filter cloth conveying mechanism and wedge shape dewater unit 12 are arranged in the gas control cabinet and give gas control cabinet 10 air feed by air compressor 14, valve 9 and pipeline.The length of filter cloth folder dewater unit is 5～15 meters.Article two, the upper-lower position sequence alternate of strainer is arranged and is constituted the closed loop respectively.Disposed advanced correction switch, the angle of revolution is big, and contact condition is good, makes the running of two guipures be in monitored state all the time, thoroughly overcome conventional correction switch when contacting suddenly with guipure or pressure can the slippage failure phenomenon when excessive.
Transmission system is the critical piece of this machine, by reductor and a plurality of not the beaming roller of same-action form.Drive roll is the transmission main shaft of main frame, and its power resources are in reductor, and its external diameter is wrapping rubber, in order to increase frictional force, and can more effective drive filter cloth motion.Compression roller makes mud bear huge extruding and crooked shearing force, and moisture further is extruded, and mud becomes slag charge in this process.Be welded with square tube at interval on the roller of big beaming roller, flow out in the square tube groove of the large quantity of moisture in the mud by big beaming roller.Slewing rollers are done commutation usefulness for filter cloth up and down, and the slewing rollers of two groups of band slideway adjustable shaft bearings are wherein arranged, and can be used to the filter cloth sideslip and adjust filter cloth length.For a short time entrust the afterbody that roller is installed in frame,, make the gravity dehydration district working properly in order to hold up filter cloth.
To scrape the mud system be with the mud cake on the upper and lower filter cloth, scrape to conveyer and transport, and cleaning shoe is a polyethylene board, should in time change after the wearing and tearing, and be prior art, be not described herein at this.
What need understand is: though the foregoing description is to the present invention's detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than to the restriction of mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention all falls within the scope of protection of the present invention.
Claims (6)
1. device for dehydrating sladge waste, it comprises appliance controller and automatic deviation rectifying device, it is characterized in that: the sludge pump import is communicated with sludge-tank by pipeline and valve, the sludge pump outlet is communicated with the import of flocculation agitator, pipeline is passed through in the powder mixer import, the valve water inlet, powder mixer outlet passing through pipeline, valve is communicated with the measuring pump import, the measuring pump outlet is communicated with the import of flocculation agitator by flowmeter, the outlet of flocculation agitator is directly to the folder of the filter cloth in filter cloth conveying mechanism dewater unit, water receiving tank is positioned at the below of filter cloth folder dewater unit and by pipeline water is discharged, in the mud input wedge shape dewater unit after the outlet of filter cloth folder dewater unit directly will be dewatered in advance, the outlet of wedge shape dewater unit is directly to the sludge cake conveyer belt, described wedge shape dewater unit is by many compression rollers, a drive roll, big beaming roller and filter cloth constitute, many compression rollers and drive roll, big beaming roller undulate is between the upper and lower apart from arranging, the filter cloth tensioning is arranged in many compression rollers and drive roll, on the waveform roll surface that big beaming roller constitutes, be welded with square tube at interval on the roller of big beaming roller, flow out in the square tube groove of large quantity of moisture in the mud by big beaming roller, mud through the gravity dehydration district, before entering crush zone, it is carried out fully pre-press-dehydrating, the mud that this tapered region unloads the gravity district is slowly clamped, it is carried out order precompressed thickening lentamente, the free moisture of remnants in the mud layer is minimized, along with slowly advancing of two guipures up and down, article two, the distance between the upper and lower of guipure reduces gradually, middle mud layer hardening gradually, form a blob of slag, article two, the upper-lower position sequence alternate of strainer is arranged and is constituted the closed loop respectively, filter cake to clamping produces powerful extruding, shearing force is squeezed the press for extracting juice filtering with the moisture overwhelming majority that remains in the mud.
2. device for dehydrating sladge waste according to claim 1 is characterized in that: filter cloth connecting gear above and below is respectively equipped with filter cloth cleaning device and supplies water to cleaning device by water pump, valve and pipeline.
3. device for dehydrating sladge waste according to claim 1 is characterized in that: filter cloth conveying mechanism and wedge shape dewater unit are arranged in the gas control cabinet and give gas control cabinet air feed by air compressor, valve and pipeline.
4. device for dehydrating sladge waste according to claim 1 is characterized in that: the length of filter cloth folder dewater unit is 5～15 meters.
5. dewatering technology of mud, it is characterized in that: (1) adds flocculant in the mud in 0.3～2.0% ratio, fully stir through the flocculation blender, flow on the following filter cloth of filter press, moisture flows away by filter screen under the gravity effect, make the mud stiff that becomes, water content reduces, and along with the motion of filter cloth, mud is sandwiched in up and down and arrives big beaming roller in the filter cloth, then through 5 compression rollers and a drive roll, under the effect of filter cloth tension force and each compression roller alternating bending, mud has born extruding, bending and shear stress, and contained moisture is extruded, become mud cake, reach the purpose of dehydration; (2) mud in process gravity dehydration district, before entering crush zone, must carry out fully pre-press-dehydrating to it, the mud that this tapered region unloads the gravity district is slowly clamped, and it is carried out order precompressed thickening lentamente, and the free moisture of the remnants in the mud layer is minimized, along with slowly advancing of two guipures up and down, article two, the distance between the upper and lower of guipure reduces gradually, and middle mud layer hardening gradually forms a blob of slag.
6. dewatering technology of mud according to claim 5 is characterized in that: the upper-lower position sequence alternate of two filter clothes, to powerful extruding, the shearing force of filter cake generation of clamping, squeeze the press for extracting juice filterings with the moisture overwhelming majority that remains in the mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101021663A CN101628781B (en) | 2009-08-24 | 2009-08-24 | Sludge dewatering equipment and sludge dewatering process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101021663A CN101628781B (en) | 2009-08-24 | 2009-08-24 | Sludge dewatering equipment and sludge dewatering process |
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| Publication Number | Publication Date |
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| CN101628781A CN101628781A (en) | 2010-01-20 |
| CN101628781B true CN101628781B (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101021663A Expired - Fee Related CN101628781B (en) | 2009-08-24 | 2009-08-24 | Sludge dewatering equipment and sludge dewatering process |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241469B (en) * | 2010-05-10 | 2013-02-13 | 佛山科创玮景环保技术有限公司 | Dehydration device |
| CN103102054A (en) * | 2011-11-14 | 2013-05-15 | 靖江市中大环境工程有限公司 | Rapid mechanical type sludge dewatering system |
| CA2886874C (en) * | 2012-10-10 | 2021-06-29 | Z-Filter Pty Ltd | Separation apparatus and method |
| CN102974153B (en) * | 2012-11-23 | 2014-08-13 | 济宁金百特生物机械有限公司 | Dreg-liquid separator |
| CN102974154A (en) * | 2012-12-27 | 2013-03-20 | 上海雨泽环保科技有限公司 | Polluted and waste water front-end physical treatment device |
| CN105837003B (en) * | 2016-03-31 | 2019-07-26 | 上海尔速机械设备有限公司 | A kind of mud and water separating equipment and mud-water separation method |
| CN106492531B (en) * | 2016-12-06 | 2019-07-09 | 广州绿鼎环保设备有限公司 | A kind of fission concentrating belt-type filter press and dewatering technology of mud |
| CN106746452A (en) * | 2016-12-13 | 2017-05-31 | 上海勘测设计研究院有限公司 | A kind of small-sized mud mechanism filter-pressing curing apparatus and application method |
| CN106915893A (en) * | 2017-04-28 | 2017-07-04 | 新锦龙生物基材料（湖北）有限公司 | The method and its device of a kind of efficient process sludge dewatering |
| CN108751665B (en) * | 2018-07-30 | 2024-06-14 | 安徽国祯生态科技有限公司 | Device and method for improving dehydration efficiency of activated sludge by using biomass ash |
| CN110615591A (en) * | 2019-10-16 | 2019-12-27 | 内蒙古硕达智水生态科技有限公司 | Sludge treatment equipment and sludge treatment method |
| CN110615592A (en) * | 2019-10-16 | 2019-12-27 | 内蒙古硕达智水生态科技有限公司 | Sludge treatment equipment |
| CN112745000B (en) * | 2021-01-21 | 2021-07-30 | 黄河水利职业技术学院 | Industrial sludge recycling treatment system and treatment method thereof |
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Patent Citations (6)
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|---|---|---|---|---|
| CN2438496Y (en) * | 2000-09-01 | 2001-07-11 | 陈国平 | Belt type press filtering machine |
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| CN101628781A (en) | 2010-01-20 |
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