CN105967489B - Filter plate and filter pressing assembly for electroosmosis sludge high-dry dewatering equipment - Google Patents
Filter plate and filter pressing assembly for electroosmosis sludge high-dry dewatering equipment Download PDFInfo
- Publication number
- CN105967489B CN105967489B CN201610467920.3A CN201610467920A CN105967489B CN 105967489 B CN105967489 B CN 105967489B CN 201610467920 A CN201610467920 A CN 201610467920A CN 105967489 B CN105967489 B CN 105967489B
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- Prior art keywords
- filter
- plate
- sludge
- cavity
- steel plate
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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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
- B01D25/215—Construction of the filter plates, frames
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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
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention provides a squeezing filter plate for electroosmosis sludge high-dryness dehydration equipment, which comprises a filter plate frame, filter cloth, a filter disc and concentric holes for conveying sludge, wherein the front side of the filter plate frame is recessed in a single direction to form a filter pressing chamber; the cavity is arranged between the filter disc and the plate frame and can be filled with liquid or gas, a push plate device is also arranged between the cavity and the filter disc, the cavity is composed of a tympanic membrane and outer and inner base steel plates, and the tympanic membrane is arranged on the periphery of the inner edge of the base steel plates. The invention increases the squeezing pressure of the sludge by filling water into the body and squeezing, ensures the uniform squeezing force by the plate pushing device, realizes the whole-process squeezing and further reduces the water content of the sludge.
Description
Technical Field
The invention relates to the field of sludge treatment equipment parts, in particular to a filter chamber mechanism in sludge electroosmosis high-dryness dehydration equipment.
Background
In the market, plate frame diaphragms are mostly used for sludge deep dehydration equipment for pressure filtration. As the plate frame diaphragm filter-pressing sludge dehydration needs to be added with lime, iron salt and other medicaments, the treated sludge hardly reaches the national pollution control standard, and the water content of the treated sludge is less than 50 percent, so that the treated sludge can be sent to a domestic garbage landfill for landfill treatment. And the addition of the medicament into the sludge reduces the heat value of the sludge as fuel, which is not beneficial to the later-period sludge treatment and utilization.
The filter chamber mechanism in the sludge high-dry dehydration equipment of the existing equipment squeezes, the volume of the filter chamber is reduced by pushing a spring to compress by virtue of an oil cylinder, the sludge is squeezed and dehydrated, the oil cylinder needs to overcome the spring force in the squeezing process, so that the squeezing pressure in the filter chamber is smaller, the dehydration efficiency is influenced, and the squeezing cannot be continued after the spring compression is finished.
The Chinese patent publication No. CN 204058210U discloses a diaphragm filter plate for filter-pressing sludge, wherein two diaphragm plates form a relatively sealed diaphragm cavity, and a solid plate is arranged in the middle of the diaphragm cavity to divide the diaphragm cavity into two parts; the diaphragm cavity is connected with the squeezing water channel, the middle of the diaphragm filter plate is provided with a sludge channel, and the periphery of the diaphragm filter plate is provided with a drainage channel. Because the diaphragm cavity is formed by the diaphragm filter plate, the deformation of the pressed diaphragm cavity is limited, the deformation (such as the periphery and the middle of the filter plate) of the diaphragm filter plate is inconsistent, and the sludge is pressed unevenly.
Disclosure of Invention
The invention aims to provide a filter chamber mechanism of sludge high-dry dehydration equipment, which has higher squeezing pressure and realizes whole-course squeezing.
The technical scheme of the invention is as follows:
a squeezing filter plate for electroosmosis sludge high-dry dehydration equipment comprises a filter plate frame, filter cloth, a filter disc and concentric holes for conveying sludge, wherein the front side of the filter plate frame is recessed in a one-way mode to form a filter pressing chamber, the filter disc is arranged at the bottom of the filter pressing chamber, the filter cloth is arranged on the filter disc, a cathode conductive filter screen connected with a cathode copper bar is arranged between the filter disc and the filter cloth, and the back side of the plate frame is provided with an anode plate; the cavity is arranged between the filter disc and the plate frame and can be filled with liquid or gas, a push plate device is also arranged between the cavity and the filter disc, the cavity is composed of a tympanic membrane and outer and inner base steel plates, and the tympanic membrane is arranged on the periphery of the inner edge of the base steel plates.
Further, the tympanic membrane is a high-strength heat-resistant rubber vulcanized on the base steel plate.
Furthermore, the push plate device comprises a movable pressing plate and a sludge guide cylinder, wherein the sludge guide cylinder is arranged on the concentric hole, and the movable pressing plate is sleeved on the sludge guide cylinder.
Furthermore, the moving pressing plate is formed by welding a plurality of field-shaped rib plates on a steel plate, the glass fiber reinforced plastic insulating filter disc is arranged in the field-shaped rib plates, and the cathode conductive net is fixed on the glass fiber reinforced plastic insulating filter disc.
Furthermore, the steel plate of the movable pressing plate is superposed with the base steel plate outside the cavity.
Furthermore, the steel plate of the movable pressing plate is a 10mm steel plate, and the steel plate in the base of the cavity is a 6mm steel plate.
Furthermore, the cavity is provided with at least one water inlet and outlet and one exhaust hole, and the water inlet and outlet and the exhaust hole are arranged at four corners of the filter plate.
Furthermore, the peripheries of the plate frame, the anode plate, the push plate device, the cathode conductive net and the cavity are circular.
Furthermore, the circumferential edge of the plate frame is provided with a raised step, the diameter of the anode plate is larger than the inner diameter of the raised step of the plate frame, and the outer peripheral edge of the anode plate is provided with a silicon rubber sealing ring.
A filter pressing assembly for sludge high-dry dehydration equipment is formed by more than two same filter pressing plates in parallel, wherein the front faces of adjacent plate frames are recessed in a one-way mode, and the back face of the other plate frame forms a sludge cavity which is sealed relatively and has an electroosmosis effect.
Compared with the prior art, the invention has the beneficial effects that: through filling water to the cavity and suppressing, increased the pressure that squeezes of mud, through the push pedal device, guaranteed the even of squeezing the power simultaneously, realized whole journey and squeezed, further reduced the mud moisture content.
The push plate device is arranged at the back of the plate frame, so that the whole tympanic membrane is uniformly extended, and the service life is ensured; meanwhile, the sludge guide cylinder limits the direction of the plate pushing device.
Drawings
FIG. 1 is a schematic view of a press filter plate used in an electroosmosis sludge high-dry dewatering device according to the present invention;
FIG. 2 is a right side view of FIG. 1 of the present invention;
fig. 3 is a schematic view of the tympanic membrane of the present disclosure;
FIG. 4 is a schematic structural view of the water inlet/outlet pipe and the strong sealing surface of the present invention;
FIG. 5 is a schematic view of the working mode of the sludge electroosmosis sludge high-dryness dehydration filter chamber of the invention;
FIG. 6 is a schematic flow chart of the working mode of the sludge electroosmosis sludge high-dryness dehydration filter chamber of the invention.
In the figure: 1. fixing a plate frame; 2. an anode plate; 3. moving the pressing plate; 4. a filter disc; 5. a tympanic membrane; 6. a sludge guide cylinder; 7. mechanical extrusion; 8. sludge; 9. filtering water; 101. heat-resistant rubber; 102. a base steel plate; 103. screw holes; 104. a water inlet pipe and a water outlet pipe; 105. a concentric bore; 106. a cathode conductive mesh; 107. an anode plate; 108. and (4) forming a sludge cavity.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.
As shown in fig. 1 and 2, the pressing filter plate for electroosmotic sludge high-dry dehydration equipment of the invention mainly comprises a fixed plate frame 1, an anode plate 2, a movable press plate 3, a cathode conductive mesh 106, a tympanic membrane 5 and a sludge guide cylinder 6, wherein the cathode conductive mesh 104 is installed on the movable press plate 3, the anode plate 2 is installed on the fixed plate frame 1, and the tympanic membrane 5 is installed between the prepressing of the fixed plate frame 1 and the movable press plate 3.
As shown in fig. 1 and 2, the fixed plate frame 1 has a raised step at the circumferential edge, and the anode plate 2 is mounted on the fixed plate frame 1 by using an insulating screw. The diameter of the anode plate 2 is larger than the inner diameter of the raised step of the fixed plate frame 1, and a silicon rubber sealing ring is arranged on the outer peripheral edge of the anode plate 1 to enhance the circumferential edge sealing of the fixed plate frame.
As shown in fig. 1 and 2, the moving press plate 3 is a circular steel plate with a diameter of 10mm, a plurality of field-shaped rib plates are welded on the circular steel plate, the glass fiber reinforced plastic insulating filter disc 4 is installed in the field-shaped rib plates, the cathode conductive net 4 is fixed on the glass fiber reinforced plastic insulating filter disc 4, and the glass fiber reinforced plastic insulating filter disc 4 plays an insulating role between the moving press plate and the cathode conductive net.
As shown in fig. 3 and 4, the tympanic membrane 5 is formed by vulcanizing high-strength heat-resistant rubber 101 on a 6mm base steel plate 102, and screw holes 103 are uniformly distributed around the base steel plate 102 for attachment and fixation. Four water inlet and outlet pipes 104 are uniformly distributed on the circumference of the tympanic membrane 5, water pumped by the high-pressure water pump enters from the two pipes at the lower part, the tympanic membrane expands and swells, and air and water in the tympanic membrane are discharged from the two pipes at the upper part.
The high strength rubber is vulcanized on a steel plate, and is bonded with the steel plate by using a thermal vulcanization chemical industry and a Kemlock polymerization adhesive. The vulcanization process mainly comprises process cleaning, sand blasting and the like (steel sand blasting, cleaning); spraying two to three layers of adhesive, hot pressing and bonding the die.
As shown in fig. 1, 2, 3 and 4, the fixed plate frame 1, the anode plate 2, the movable platen 3, the cathode conductive mesh 106 and the tympanic membrane 5 are all provided with concentric holes 105, and the sludge guide cylinder 6 is installed on the concentric holes 105. Not only guides sludge to enter the next tympanic membrane frame cavity from the previous tympanic membrane frame cavity, but also can play a role in sliding and guiding the movable pressing plate in the fixed plate frame.
As shown in figures 5 and 6, a plurality of tympanic membrane type sludge electroosmosis sludge high-dry dehydration filter chambers are arranged in a row, and a sludge cavity 108 is formed between a cathode mesh 106 of the previous filter chamber and an anode plate 107 of the next filter chamber. The sludge enters a sludge cavity 108 through a sludge guide cylinder 6, after a direct-current voltage is given to an anode plate 107 and a cathode mesh 106, the sludge in the sludge cavity 108 generates an electroosmosis phenomenon, meanwhile, water pumped by a high-pressure water pump enters a tympanic membrane 5, the tympanic membrane 5 is swollen to push a movable pressing plate 3 to slide and move forwards along the direction guided by the sludge guide cylinder 6, the volume of the sludge cavity 108 is reduced, the sludge in the cavity generates pressure, the sludge pressure is combined with the sludge electroosmosis phenomenon, and the water in the sludge is rapidly subjected to filter pressing and dehydration.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A squeezing filter plate for electroosmosis sludge high-dry dehydration equipment comprises a filter plate frame, filter cloth, a filter disc and concentric holes for conveying sludge, wherein the front side of the filter plate frame is recessed in a one-way manner to form a filter pressing chamber, the filter disc is arranged at the bottom of the filter pressing chamber, the filter cloth is arranged on the filter disc, a cathode conductive filter screen connected with a cathode copper bar is arranged between the filter disc and the filter cloth,
the back of the filter plate frame is provided with an anode plate; the filter disc is a glass fiber reinforced plastic insulating filter disc;
a cavity which can be filled with liquid or gas is arranged between the filter disc and the filter plate frame,
the filter disc is characterized in that a push plate device is arranged between the cavity and the filter disc, the cavity is composed of a tympanic membrane, an outer base steel plate and an inner base steel plate, and the tympanic membrane is arranged on the periphery of the inner edge of the base steel plate;
the plate pushing device comprises a movable pressing plate and a sludge guide cylinder, the sludge guide cylinder is arranged on the concentric hole, and the movable pressing plate is sleeved on the sludge guide cylinder;
the movable pressing plate is a steel plate, a plurality of field-shaped rib plates are welded on the steel plate, the glass fiber reinforced plastic insulating filter disc is installed on the field-shaped rib plates, and the cathode conductive filter screen is fixed on the glass fiber reinforced plastic insulating filter disc;
the steel plate of the movable pressing plate is superposed with the outer basic steel plate of the cavity.
2. A press filter plate as claimed in claim 1, wherein said tympanic membrane is a high strength heat resistant rubber vulcanized to a base steel plate.
3. The press filter plate of claim 1, wherein the steel plate of the moving platen is 10mm steel plate, and the steel plate in the base of the chamber is 6mm steel plate.
4. A press filter plate according to claim 1 or 2 wherein said chamber is provided with at least one inlet and outlet port and one vent port, said inlet and outlet port and vent port being provided at the corners of the filter plate.
5. The filter press plate of claim 1 or 2, wherein the outer periphery of the filter plate frame, the anode plate, the push plate device, the cathode conductive filter screen and the cavity is circular.
6. The press filter plate of claim 5, wherein the plate frame has a raised step at its circumferential edge, the anode plate has a diameter greater than the inner diameter of the raised step of the plate frame, and a silicone rubber seal is mounted on the outer circumferential edge of the anode plate.
7. A filter pressing assembly for sludge high-dry dehydration equipment is formed by juxtaposing more than two same pressing filter plates according to any one of claims 1-6, wherein the front surfaces of adjacent plate frames are recessed in a one-way mode, and the back surface of the other plate frame forms a sludge storage cavity which is relatively sealed and has an electroosmosis effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467920.3A CN105967489B (en) | 2016-06-24 | 2016-06-24 | Filter plate and filter pressing assembly for electroosmosis sludge high-dry dewatering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467920.3A CN105967489B (en) | 2016-06-24 | 2016-06-24 | Filter plate and filter pressing assembly for electroosmosis sludge high-dry dewatering equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105967489A CN105967489A (en) | 2016-09-28 |
| CN105967489B true CN105967489B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610467920.3A Active CN105967489B (en) | 2016-06-24 | 2016-06-24 | Filter plate and filter pressing assembly for electroosmosis sludge high-dry dewatering equipment |
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| CN (1) | CN105967489B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925006A (en) * | 2017-03-23 | 2017-07-07 | 成都易态科技有限公司 | Press filtration unit, filter-pressing device and mud dewatering method |
| CN208711143U (en) * | 2017-06-03 | 2019-04-09 | 中国计量大学 | A kind of sewage sludge electromagnetic force filter-press dehydration device |
| CN107434347A (en) * | 2017-08-28 | 2017-12-05 | 浙江晋椿五金配件有限公司 | A kind of sludge dehydration device and dewatering |
| CN107555754B (en) * | 2017-09-19 | 2020-10-23 | 中国计量大学 | Energy-saving electroosmosis sludge high-dryness dehydration method |
| CN107381997B (en) * | 2017-09-19 | 2020-10-13 | 海河环境技术(杭州)有限公司 | Electroosmosis filter pressing and sludge dewatering cooperated method |
| CN107982970B (en) * | 2017-12-26 | 2023-09-08 | 成都易态科技有限公司 | Filter plate for plate-frame filter pressing device and preparation method of filter structure of filter plate |
| CN113443807B (en) * | 2021-08-30 | 2021-11-19 | 天津市星拓科技发展有限公司 | High-pressure sealed filter plate unit structure and using method |
| CN115259627B (en) * | 2022-07-29 | 2023-10-20 | 山东祥龙新材料股份有限公司 | Sludge dewatering treatment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102146U (en) * | 1991-10-07 | 1992-04-22 | 东方碱业联合开发公司压滤机厂 | Combined filter press frame |
| KR20020018870A (en) * | 2000-09-04 | 2002-03-09 | 이재근 | Electro-dewatering system of filter press |
| CN204261405U (en) * | 2014-08-20 | 2015-04-15 | 湖北合加环境设备有限公司 | A kind of elasticity Filter pressing board of electro-osmosis high pressure mud, press filtration assembly and filter press |
-
2016
- 2016-06-24 CN CN201610467920.3A patent/CN105967489B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102146U (en) * | 1991-10-07 | 1992-04-22 | 东方碱业联合开发公司压滤机厂 | Combined filter press frame |
| KR20020018870A (en) * | 2000-09-04 | 2002-03-09 | 이재근 | Electro-dewatering system of filter press |
| CN204261405U (en) * | 2014-08-20 | 2015-04-15 | 湖北合加环境设备有限公司 | A kind of elasticity Filter pressing board of electro-osmosis high pressure mud, press filtration assembly and filter press |
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| CN105967489A (en) | 2016-09-28 |
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Address after: 437100 238 Jin Gui Road, Xianning Economic Development Zone, Xianning, Hubei Applicant after: EGUARD NEW ENERGY AUTOMOBILE Co.,Ltd. Applicant after: BEIJING HI-STANDARD WATER TREATMENT EQUIPMENT CO.,LTD. Address before: 437100 238 Jin Gui Road, Xianning Economic Development Zone, Xianning, Hubei Applicant before: HUBEI EGUARD ENVIRONMENT EQUIPMENT Co.,Ltd. Applicant before: BEIJING HI-STANDARD WATER TREATMENT EQUIPMENT CO.,LTD. |
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