CN105936579B - A kind of Filter pressing board, filters pressing component and squeezer for sludge high-drying dehydration equipment - Google Patents

A kind of Filter pressing board, filters pressing component and squeezer for sludge high-drying dehydration equipment Download PDF

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Publication number
CN105936579B
CN105936579B CN201610475769.8A CN201610475769A CN105936579B CN 105936579 B CN105936579 B CN 105936579B CN 201610475769 A CN201610475769 A CN 201610475769A CN 105936579 B CN105936579 B CN 105936579B
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Prior art keywords
filter
sludge
copper bar
oil
pressure
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CN105936579A (en
Inventor
文一波
谢品有
李天增
孟龙
才建成
刘庆涛
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Sound Environmental Resources Co Ltd
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Sound Environmental Resources Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/006Electrochemical treatment, e.g. electro-oxidation or electro-osmosis

Abstract

The present invention provides a kind of Filter pressing board, filters pressing component and filter press for sludge high-drying dehydration equipment, Filter pressing board includes circular hydraulic cylinder filter cloth compatible with its circle size and filter disc;The front of hydraulic cylinder is unidirectionally concavely formed a filters pressing room, and filter disc is placed in the bottom of the filters pressing room, and filter cloth is placed on filter disc, and the top of hydraulic cylinder is equipped with oil connection;Oil cylinder piston compatible with its size is provided with below filter disc, the oil cylinder piston of oil pipe is connected;Oil cylinder piston, which is set in, is fixed on guide sleeve on central tube.The beneficial effect of invention in terms of existing technologies is: the electro-osmosis sludge high-pressure desiccation apparatus structure is simple, reliable for operation, it can disposably realize that moisture percentage in sewage sludge is reduced to 35% hereinafter, improving 2 times of dehydration efficiencies than common diaphragm filter press from 85%.Due to being not added with medicament, for depth desiccation mud cake organic matter almost without loss, calorific value is high, is especially suitable for sludge incineration disposition.

Description

A kind of Filter pressing board, filters pressing component and squeezer for sludge high-drying dehydration equipment
Technical field
The present invention relates to sludge treatment part of appliance fields, and in particular to a kind of electro-osmosis sludge high-pressure desiccation apparatus.
Background technique
" household refuse landfill sites contamination control standard " GB/T23485-2009 clear stipulaties sewage treatment plants sludge Moisture content can just enter household refuse landfill sites landfill stabilization less than 40% after processing.
Sludge treatment enterprise is to meet sludge subsequent processing disposal technology (such as sanitary landfills, burning, compost) requirement at present, Selection has autoclave diaphragm chamber filter press treatment process, plate and frame type filter-press treatment process.Both sludge treatment techniques can Moisture percentage in sewage sludge is reduced to 60% moisture content of standard of landfill hereinafter, still must be added to a large amount of quick limes, molysite, additive accounts for To sludge butt amount 20% ~ 30% or so.It is not really achieved mud decrement purpose, sludge calorific value also further decreases, and increases The subsequent disposition difficulty of sludge.
Chinese issued patent, patent publication No. are CN 204058210U, disclose it is a kind of for filters pressing sludge every Membrane filtration plate, two of them diaphragm plate constitute the diaphragm cavity of an opposing seal, and solid slab is placed in the centre of diaphragm cavity, will Diaphragm cavity is divided into two parts;Diaphragm cavity is connected with squeezing water channel, and the centre of membrane filter plate is equipped with sludge channel, diaphragm Filter plate is all around equipped with drainage channel.Since diaphragm cavity is made of membrane filter plate, the diaphragm cavity limited deformation of squeezing, and every The deformation (such as filter plate periphery and centre) of membrane filtration plate is inconsistent, and being squeezed for sludge is uneven.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of higher pressures to squeeze power, realizes that the sludge high-drying of whole squeezing is de- The filter chamber mechanism of wetting system.
The technical scheme is that
A kind of Filter pressing board for sludge high-drying dehydration equipment, including circular hydraulic cylinder are mutually fitted with its round size The filter cloth and filter disc matched;The front of hydraulic cylinder is unidirectionally concavely formed a filters pressing room, and filter disc is placed in the bottom of the filters pressing room, Filter cloth is placed on filter disc, and the top of hydraulic cylinder is equipped with oil connection;Oil compatible with its size is provided with below filter disc The oil cylinder piston of the cylinder piston, oil pipe is connected;Oil cylinder piston is set in the guide sleeve being fixed on filter plate central tube.
Further, the cathode conduction strainer connecting with cathode copper bar, sheet frame are equipped between above-mentioned filter disc and filter cloth The back side be equipped with anode plate.
Further, the insulation board set between above-mentioned anode plate and sheet frame.
A kind of filters pressing component for sludge high-drying dehydration equipment, by identical more than two arranged side by side group of above-mentioned Filter pressing boards At adjacent unidirectional recessed and another sheet frame the back side in sheet frame front constitutes an opposing seal, the storage mud with electroosmosis Cavity.
A kind of electro-osmosis high pressure sludge filter press, including hydraulic device, send mud system, high-pressure cleaning system, high-frequency rectification Power supply and above-mentioned filters pressing component, hydraulic device provide pressure for electro-osmosis high pressure sludge filter press, and sending mud system is electro-osmotic pressure It filters component and supplies sludge, high-frequency rectification power supply provides power supply for the anode copper bar, cathode copper bar, and high-pressure cleaning system is for pressure The cleaning of component is filtered, hydraulic device provides low-pressure hydraulic through oil connection for oil cylinder piston.
The beneficial effect of the present invention in terms of existing technologies is: the electro-osmosis sludge high-pressure desiccation apparatus structure letter It is single, reliable for operation, it can disposably realize that moisture percentage in sewage sludge is reduced to 35% hereinafter, improving 2 than common diaphragm filter press from 85% Times dehydration efficiency.Due to being not added with medicament, for depth desiccation mud cake organic matter almost without loss, calorific value is high, is especially suitable for sludge Incineration disposal.Required pressing force is small between filter chamber simultaneously, can increase filter chamber quantity, improves treating capacity and efficiency.
Detailed description of the invention
Fig. 1 provides electro-osmosis sludge high-pressure desiccation structure of pressing filter schematic diagram for the embodiment of the present invention;
Fig. 2 provides oil cylinder hydraulic for the embodiment of the present invention and squeezes filter chamber component structure diagram;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the partial enlarged view of Fig. 3;
Fig. 5, anode device structure schematic diagram is provided for the embodiment of the present invention;
Fig. 6 is the front view of oil cylinder piston;
Fig. 7 is the right view of Fig. 6;
In figure: 1, Shaftless screw conveyor 2, storage mud tank 3, band feeder sludge screw pump 4, Pneumatic three-way valve 5, sky Press blowback system 6, high pressure cleaning pump 7 connect liquid turnover panel 8, rack 9, cylinder type circle squeezing filter chamber component 10, anode Plate 11, distribution copper bar 12, heat-resisting filter cloth 13, mud cake 14, high-pressure cleaning system 15, pulling car 16, hydraulic device 17, High-frequency rectification power supply 901, hydraulic cylinder 903, oil cylinder piston 904, oil connection 905, insulation board 907, guide cylinder 908, Cathode conduction strainer 909, filter disc 910, filter chamber component handle.
Specific embodiment
The present invention is described further with reference to the accompanying drawing.
In the present invention, the noun of locality used such as " upper and lower, left and right " typically refers to refer on shown in the drawings, under, it is left, It is right;" inside and outside " refers in the profile relative to each component itself, outside.
Referring to Fig. 1: a kind of electro-osmosis sludge high-pressure desiccation apparatus
The dehydration device includes: that Shaftless screw conveyor 1 receives external 80 ~ 90% sludge of moisture content, is transported to storage mud tank 2 In, band feeder sludge screw pump 3 pumps sludge to high pressure desiccation machine import by pipeline.In high-pressure and hydraulic pressure filter rack 10 On, arrange 40 groups of steel circle filter plates 9 and anode assembly 10.It is positive as built in one piece between every two pieces of adjacent steel rounds filter plate 9 Pole device adds heat-resisting filter cloth 12 to form a Homogeneous Circular space with cathode filter disc.After sludge is pumped into, round mud cake 13 is formed.Circle Shape mud cake 13 is clipped by cylinder barrel, heat-resisting filter cloth 12 and the anode assembly 10 of cylinder type squeezing filter chamber component 9, and approximation regards electricity as Resistance forms uniformly distributed electric field.Anode assembly 10 draws electric nose, is connected on 11 anode copper bar of distribution copper bar, is connected to by copper bar On 17 anode of high-frequency rectification power supply.Cathode conduction strainer 908 is mounted on heat-resisting filter cloth rear, draws electric nose, passes through cable connection To the cathode copper bar of distribution copper bar 11, it is connected on 17 cathode of high-frequency rectification power supply by cathode copper bar.
High-frequency rectification power supply is by pre-set programs, and according to pressure transmitter feedback signal, timing issues power transformation current voltage.By Grade is loaded into cathode, on anode.It rests on mud cake between anode and cathode and electro-osmotic effects occurs.Sludge itself is electrification glue Body, resistance sizes are determined by sludge conductivity.Hydraulic device 16 provides plus high-pressure hydraulic coupling by oil cylinder and compresses each filter chamber.
It is passed through hydraulic oil to the oil cylinder of cylinder type squeezing filter chamber component 9, the piston of hydraulic cylinder is advanced slowly, and piston is to circle Shape mud cake applies pressure, and the water appeared in round mud cake by electric osmose is discharged through heat-resisting filter cloth, realizes mud-water separation, reaches dehydration Purpose.
The electro-osmosis sludge high-pressure desiccation apparatus structure is simple, securely, reliable for operation, the service life is long, can be realized sludge and contains Water rate is reduced to 40% hereinafter, improve twice of dehydration efficiency than common diaphragm filter press, and because pressing force needed between filter chamber is small, can To increase filter chamber quantity, the treatment effeciency and processing capacity of filter press are improved.
It opens and is blown into pressure-air before plate and enters mud cake center, blow out non-desiccation sposh and flow back into storage mud tank.Open filter chamber Afterwards, it is passed through pressure-air from the hydraulic cylinder upper front end filter cloth back side, filter cloth is blowed to front by air, thus de- using mud cake It falls.
As shown in Figure 2, Figure 3, Figure 4: it includes hydraulic cylinder 901, heat-resisting filter cloth 12, oil that cylinder type, which squeezes filter chamber component 9, The cylinder piston 903, oil connection 904, insulation board 905, anode plate 10, guide cylinder 907, cathode conduction strainer 908, filter disc 909, Filter chamber component handle 910;Wherein heat-resisting filter cloth 12, oil cylinder piston 903, insulation board 905, anode plate 10, cathode conduction strainer 908, the round size of filter disc 909 and hydraulic cylinder 901 is adapted.
901 single side of hydraulic cylinder is concavely formed squeezing filter chamber, and cathode conduction strainer 908 is mounted on heat-resisting filter cloth 12 and filter disc Between 909, electric nose is drawn by the cathode copper bar of cable connection to distribution copper bar 11, it is whole that high frequency is connected to by cathode copper bar On 17 cathode of galvanic electricity source.
Anode assembly 10 is set to the back side of hydraulic cylinder 901, and insulation is equipped between anode assembly 10 and hydraulic cylinder 901 Plate 905;Anode assembly 10 draws electric nose, is connected on 11 anode copper bar of distribution copper bar, is connected to high-frequency rectification electricity by copper bar On 17 anode of source.Insulation board 905 is arranged between anode plate 10 and hydraulic cylinder 901 for preventing from leaking electricity.
Hydraulic cylinder 901 is equipped with oil connection 904, and it is living that oil cylinder is additionally provided between filter disc 909 and hydraulic cylinder 901 Plug 903, oil connection 904 is connected with oil cylinder piston 903, is additionally provided on the central tube of hydraulic cylinder 901 for living to oil cylinder The guide cylinders 907 of 903 guiding of plug, guide cylinder 907 is except the outer still feeding-passage of guiding.
Fig. 5 is the structural schematic diagram of anode assembly 10, and anode assembly 10 is equipped with distribution copper bar 11.
Fig. 6 and Fig. 7 is hydraulic oil cylinder type oil cylinder piston (and guiding push plate) schematic diagram.
Certainly filter plate of the invention can also be not provided with the anode plate for setting cathode conduction strainer in filter chamber while carry out electro-osmosis Press dewatering.
When work, sludge is squeezed into round oil cylinder filter chamber by band feeder sludge screw pump, is pumped into, is squeezed on one side on one side, just It into mud pressure is 0.4-0.8MPa when often work, into after complete mud, cavity pressure continues to increase when squeezing, until design pressure 2.0MPa feed pump and charging triple valve are closed.On high-pressure and hydraulic pressure filter rack, 40 groups of circle steel Filter pressing boards are arranged, By oil cylinder press.Filter chamber is by the anode plate plus heat-resisting filter cloth and cathode between the cylinder barrel wall of low pressure oil cylinder, the adjacent oil cylinder of every two Net and filter disc form a homogeneous space, and round mud cake is clipped by cathode and anode, and approximation regards resistance as, form uniformly distributed electricity ?.
High-frequency rectification power supply is by pre-set programs, and according to pressure transmitter feedback signal, timing issues 20 ~ 30V of time variant voltage DC current.On multistage loadings to each cathode, anode.It is clamped in thickness 40mm mud cake between anode assembly and cathode assembly Electro-osmotic effects occur.At this time low pressure oil cylinder open feeding squeezing program, hydraulic device give oil cylinder provide pressure, oil cylinder piston to Before be slowly advanced, mud cake is squeezed, the water appeared in round mud cake by electric osmose penetrates heat-resisting filter cloth in the form of Interstitial Water, real Existing mud-water separation, round mud cake final thickness are reduced to 12-15mm by 40mm, and 62.5% ~ 70% moisture is removed in mud cake, from And realize sludge drying purpose.The pressure of low-pressure hydraulic oil cylinder can be adjusted as desired by control valve.
When machine is no longer discharged, squeeze water emptying, pressure-air are quickly entered and are pasted between filter cloth and mud cake inside diaphragm Mud cake is blown in conjunction face, is forcibly separating mud cake and filter cloth.After machine opens plate, mud cake leans on gravity to be detached from filter cloth, anode plate automatically, It falls on material pulling car, mud cake outward transport.
Cylinder efficient explanation:
Before work, the operating pressure-such as 2.0MPa of hydraulic system is mixed up according to squeezing job requirement.It is hydraulic when squeezing System is passed through hydraulic oil into hydraulic cylinder by oil connection, and oil cylinder piston is limited by hydraulic cylinder and guide cylinder, Under hydraulic oil pushes, oil cylinder piston is moved forward.The filter disc and cathode screen that are fixed on oil cylinder piston, filter cloth are together to Forward It is dynamic, sludge is squeezed, to achieve the purpose that dehydration.
For prior art hydraulic device, high-frequency rectification power supply and high-pressure cleaning system etc., the present invention is no longer described.
The electro-osmosis sludge high-pressure desiccation apparatus structure is simple, securely, reliable for operation, long service life, handles 1 ton 80% Water content sludge, energy consumption can fast implement moisture percentage in sewage sludge and be reduced to 40% hereinafter, than common diaphragm filter press down to 80kwh Dehydration efficiency improves twice, and because pressing force needed between filter chamber is small, can increase filter chamber quantity, improve the treatment effeciency of filter press And processing capacity.
The above, preferable specific embodiment only of the invention, but the scope of the present invention is not limited thereto, and it is any It is familiar with those skilled in the art of the present technique in the technical scope disclosed by the present invention, can easily think of the change or the replacement, should all covers Within that scope of the present invention.Therefore, the scope of the present invention should be subject to claims protection scope.

Claims (4)

1. a kind of Filter pressing board for sludge high-drying dehydration equipment, including circular hydraulic cylinder and its round size are adapted Filter cloth and filter disc;The front of the hydraulic cylinder is unidirectionally concavely formed a filters pressing room, and the filter disc is placed in the filters pressing room Bottom, the filter cloth is placed on filter disc, which is characterized in that the top of the hydraulic cylinder is equipped with oil connection;The filter disc Below be provided with oil cylinder piston compatible with its size, the oil connection is connected with oil cylinder piston;The cylinder tube It is additionally provided with the guide cylinder for being oriented to oil cylinder piston on the central tube of body, the guide cylinder is except the outer still feeding-passage of guiding; The cathode conduction strainer connecting with cathode copper bar is equipped between the filter disc and filter cloth, the back side of sheet frame is equipped with anode plate;
The cathode conduction strainer is drawn electric nose and is connected by the cathode copper bar of cable connection to distribution copper bar by cathode copper bar It is connected on high-frequency rectification power cathode;
The anode plate draws electric nose, is connected on distribution copper bar anode copper bar, is connected to high-frequency rectification power supply sun by copper bar On extremely.
2. Filter pressing board as described in claim 1, which is characterized in that be equipped with insulation board between the anode plate and sheet frame.
3. a kind of filters pressing component for sludge high-drying dehydration equipment, by identical more than two as claimed in claim 1 or 2 Filter pressing board forms side by side, and adjacent unidirectional recessed and another sheet frame the back side in sheet frame front constitutes an opposing seal, has The storage mud cavity of electroosmosis.
4. a kind of electro-osmosis high pressure sludge filter press, including hydraulic device, send mud system, high-pressure cleaning system, high-frequency rectification electricity Source and filters pressing component as claimed in claim 3, the hydraulic device provides pressure for electro-osmosis high pressure sludge filter press, described to send Mud system is that electro-osmosis filters pressing component supplies sludge, and the high-frequency rectification power supply provides electricity for the anode copper bar, cathode copper bar Source, cleaning of the high-pressure cleaning system for filters pressing component, which is characterized in that the hydraulic device is oil cylinder through oil connection Piston provides low-pressure hydraulic.
CN201610475769.8A 2016-06-24 2016-06-24 A kind of Filter pressing board, filters pressing component and squeezer for sludge high-drying dehydration equipment Active CN105936579B (en)

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CN109608022A (en) * 2018-11-09 2019-04-12 启迪桑德环境资源股份有限公司 A kind of electro-osmosis filter plate

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CN101200342A (en) * 2007-12-19 2008-06-18 山东恒冠化工科技有限公司 Pressing type sludge dehydration apparatus and working method thereof
CN201245539Y (en) * 2008-08-04 2009-05-27 胡杭虎 Squeezing plate of squeezing dehydrator
CN104030543A (en) * 2014-06-06 2014-09-10 湖北合加环境设备有限公司 Membrane filter plates used for electro-osmosed sludge, membrane filter press and filter press
CN104138675A (en) * 2014-08-20 2014-11-12 湖北合加环境设备有限公司 Elastic electroosmosis type high-voltage sludge squeezing filter plate, filter pressing component and filter press
CN203971536U (en) * 2014-08-11 2014-12-03 湖州核汇机械有限公司 Compact type vacuum belt filter press
CN205907160U (en) * 2016-06-24 2017-01-25 湖北合加环境设备有限公司 A filter plate , filter -pressing subassembly and pressure filter for mud high level cadre dewatering equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204485472U (en) * 2014-12-25 2015-07-22 重庆新发展汽车部件有限公司 A kind of sludge filter press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101200342A (en) * 2007-12-19 2008-06-18 山东恒冠化工科技有限公司 Pressing type sludge dehydration apparatus and working method thereof
CN201245539Y (en) * 2008-08-04 2009-05-27 胡杭虎 Squeezing plate of squeezing dehydrator
CN104030543A (en) * 2014-06-06 2014-09-10 湖北合加环境设备有限公司 Membrane filter plates used for electro-osmosed sludge, membrane filter press and filter press
CN203971536U (en) * 2014-08-11 2014-12-03 湖州核汇机械有限公司 Compact type vacuum belt filter press
CN104138675A (en) * 2014-08-20 2014-11-12 湖北合加环境设备有限公司 Elastic electroosmosis type high-voltage sludge squeezing filter plate, filter pressing component and filter press
CN205907160U (en) * 2016-06-24 2017-01-25 湖北合加环境设备有限公司 A filter plate , filter -pressing subassembly and pressure filter for mud high level cadre dewatering equipment

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