CN102225260B - Automatic filter-pressing dehydration device and working method thereof - Google Patents
Automatic filter-pressing dehydration device and working method thereof Download PDFInfo
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- CN102225260B CN102225260B CN2011101106372A CN201110110637A CN102225260B CN 102225260 B CN102225260 B CN 102225260B CN 2011101106372 A CN2011101106372 A CN 2011101106372A CN 201110110637 A CN201110110637 A CN 201110110637A CN 102225260 B CN102225260 B CN 102225260B
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- 238000003825 pressing Methods 0.000 title claims abstract description 128
- 230000018044 dehydration Effects 0.000 title claims abstract description 33
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims description 206
- 238000007789 sealing Methods 0.000 claims description 33
- 239000007789 gas Substances 0.000 claims description 16
- 210000003141 lower extremity Anatomy 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 230000002146 bilateral effect Effects 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 12
- 239000010802 sludge Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012394 real-time manufacturing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention relates to an automatic filter-pressing dehydration device and a working method thereof and belongs to the technical field of environment-friendly squeezing. The automatic filter-pressing dehydration device comprises one or more than one filter-pressing unit and a bottom filter-pressing box, wherein the filter-pressing unit is arranged above the bottom filter-pressing box and comprises a filter-pressing plate and a filter-pressing frame. According to the invention, the filter-pressing plate filter-presses moisture-containing materials in the filter-pressing frame in the manner of piston motion, which is characterized in that the filter-pressing plate has high filter-pressing homogeneous degree and little deformation abrasion; materials are fed from the side wall of the filter-pressing plate, which is characterized in that a pressure-bearing strength of the filter-pressing frame is promoted and the successful implementation of high-pressure filter-pressing is ensured; high-pressure gas is blown into a filter-pressing cavity from through holes on the bottom surface and the top surface of the filter-pressing cavity, thereby the filter-pressed materials can be unloaded easily; grooves are formed on the bottom surface of the filter-pressing plate and the bottom surface of a bottom filter-pressing unit, so that the filter-pressed liquid is prevented from returning to the squeezed dry materials in unloading process and the filter-pressing effect is maintained.
Description
Technical field
The present invention relates to a kind of automatic filter-pressing dehydration equipment and method of work thereof, belong to environmental protection Technology in Pressing field.
Background technology
The high-moisture percentage of mud is a principal element that affects sludge treatment and resource, the domestic technology that adopts is cheaply carried out processed to the mud of moisture content about 80% more now, and the method for wherein carrying out deep dehydration for moisture 75%～85% mud mainly contains: heat drying: investment is high, energy consumption is large; Microwave drying: investment is high, energy consumption is large; Solar energy drying: operating cost is low, be subjected to weather effect large; The dehydration of board-like barrier film: maintenance cost is high, the thickened sludge of applicable moisture content more than 90% only.Therefore the plate and frame filter press that above-mentioned board-like barrier film evaporation adopts is widely used because have the advantage of mass squeezing.But employed plate and frame filter press has following deficiency on the market now: 1, narrow application range: can only squeeze up to the material more than 90% for moisture content; Equipment is huge, and can not adjust instrument size according to production scale; 2, filter membrane stops up frequent; 3, charging aperture is single, and the press filtration chamber of press filtration unit influences each other, and stops up aborning the work that can affect whole production line such as charging aperture, causes damp production, safeguards loaded down with trivial details; 4, the sealing effectiveness of press filtration unit is poor, and vibration equipment is strong, and material flows out serious, affects the press filtration effect; 5, automaticity is low, can not automatically adjust the progress of work for real-time manufacturing parameter; Artificial incorrect operation easily causes device damage; 6, the single lead of bilateral makes the press operation poor stability, and equipment is higher from decreasing; 7, the press filtration unit independently promotes weak effect, is unfavorable for discharging.Chinese patent CN201505474 discloses a kind of vertical type blotter press, the goal of the invention of this patent is: solve filter press and the instability problems such as vibrations and leakage occur, but there is not the relevant technical scheme of clear description in its specification, this patent is the diaphragm type press filtration, maintenance cost is high, and pressure is low, and the filter cake mass dryness fraction is low after the press filtration, do not reach the requirement that post-processed is utilized, a filter element goes wrong and affects the work of whole production line.
Summary of the invention
Deficiency for existing filtering equipment the invention provides a kind of automatic filter-pressing dehydration equipment, has also proposed a kind of method of work of the said equipment.The present invention can dewater to the thickened sludge of water content about the dewatered sludge about 80% and moisture 90%-98% that sewage treatment plant is got rid of, and moisture percentage in sewage sludge is down to below 60%, realizes that mud decrement is more than 50%.The present invention can also realize filtering means dehydration of the filtering means dehydration of the filtering means dehydration of petrochemical industry mud, mine industry mud and pigment industry mud etc.
The technical scheme of automatic filter-pressing dehydration equipment of the present invention is as follows:
A kind of automatic filter-pressing dehydration equipment comprises portal frame, oil hydraulic cylinder, platen and filtrating-pressing plate frame group; Oil hydraulic cylinder is installed in the top of portal frame, and platen links to each other with oil hydraulic cylinder, and platen links to each other with the filtrating-pressing plate frame group; It is characterized in that described filtrating-pressing plate frame group comprises press filtration unit and bottom pressing filter box; The press filtration unit is above the pressing filter box of bottom, the press filtration unit comprises filter press plate and press filtration frame, described filter press plate comprises top cover, sidewall and bottom surface, sidewall at filter press plate has high pressure pore, feed pipe and drain pipe, charging aperture, through hole and the groove of perforation are arranged in the bottom surface of filter press plate, and described feed pipe links to each other with charging aperture; The water inlet end of described drain pipe is installed in the groove; In the bottom surface of filter press plate, and with the contacted one side of material filter membrane is arranged, on filter membrane and the position corresponding with charging aperture through hole is arranged; The shape of filter press plate bottom shape and press filtration frame adapts, and the filter press plate bottom surface is movably arranged in the press filtration frame; Filter press plate is connected by limiting component with the press filtration frame; Described bottom pressing filter box comprises top cover, sidewall and bottom surface, at the sidewall of bottom pressing filter box high pressure pore and drain pipe is arranged, and at the top cover of bottom pressing filter box through hole is arranged; Fluted on the bottom surface of bottom pressing filter box, the water inlet end of described drain pipe is installed in the groove; Top cover upper surface at the bottom pressing filter box has filter membrane.The advantage of above technical characterictic is: 1, the present invention is by mode in press filtration frame the press filtration water-containing materials of filter press plate with piston movement, than the existing diaphragm of rubber deformation press filtration water-containing materials that passes through, its advantage is that the press filtration uniformity of filter press plate is high, and the deformation wearing and tearing are little; 2, the present invention is by the sidewall injecting material of filter press plate, and by press filtration frame sidewall injecting material, its advantage is than existing: improve the bearing strength of press filtration frame, guarantee carrying out smoothly of high pressure press filtration; 3, gases at high pressure of the present invention are blown into the press filtration chamber by bottom surface and the through hole on the end face in press filtration chamber, are easy to the material discharging after the press filtration; 4, the effect that is provided with groove of the bottom surface of the bottom surface of filter press plate and press filtration unit, bottom is: when the press filtration material, the liquid that squeezes out can enter respectively in filter press plate and the press filtration unit, bottom by through hole, liquid flows in the groove automatically, this moment is under the blow pressure of gases at high pressure, air pressure in filter press plate and the press filtration unit, bottom is higher than external pressure, and then liquid is all extruded the filtrating-pressing plate frame group; Advantage is: the liquid that is press-filtered out can not be back in the material that drains when discharging, and the press filtration effect is maintained.
Described charging aperture is arranged on the geometric center position of filter press plate bottom surface.
The quantity of described press filtration unit is one or more, arrange from top to bottom: when the quantity of press filtration unit is 1, link to each other by attaching parts between press filtration unit and the bottom pressing filter box, under action of gravitation, attaching parts make the distance that level altitude is arranged between press filtration unit and the bottom pressing filter box; When the quantity of press filtration unit is a plurality of, since second press filtration unit, on the top cover of filter press plate through hole is arranged in the press filtration unit, at the upper surface of its top cover filter membrane is arranged; Between the press filtration unit, link to each other by attaching parts between bottom pressing filter box and the adjacent press filtration unit, under action of gravitation, attaching parts make between the press filtration unit, the distance of level altitude is arranged between bottom pressing filter box and the adjacent press filtration unit.The advantage of above technical characterictic is: 1, a plurality of press filtration unit can carry out the squeezing material in batches, independently feeding manner and squeezing space are independent of each other press filtration unit adjacent one another are, dehydration rate can not change because of the change of squeezing position, and dehydrating effect is even; 2, the advantage of attaching parts is: when needs press filtration material, realize automatically that by attaching parts alignment compresses at press filtration unit, pushing next top and the bottom pressing filter box of platen; When press filtration is complete when needing discharging, promote at platen, press filtration unit, top automatically separates the distance of fixing by attaching parts with the bottom pressing filter box under action of gravitation, for the unloading of material provides necessary path spacing.
Described limiting component is a kind of in the boss of connection chain or interlocking, and described interlocking boss: outward flange has boss in the lower end of filter press plate, and inward flange has boss in press filtration frame upper end, more than two boss form the interlocking boss; The advantage of design is herein, adopts connection chain can increase the bonding strength of filter press plate and press filtration frame, guarantees that the filter press plate bottom surface is arranged in the press filtration frame; Adopt the interlocking boss when squeezing, the interlocking boss has increased filter press plate and press filtration frame at sealing intensity longitudinally, and when discharging, also playing increases filter press plate and the bonding strength of press filtration frame and the effect of stability.
Preferably, described press filtration unit is 6.
Filter press plate top cover inner surface has reinforcement.The advantage that is designed with reinforcement herein is, the filter press plate top board bearing strength of pressure-bearing is increased, and improves the press filtration effect.
In the sidewall of press filtration frame, be vertically installed with a plurality of pressure-bearing spring grooves, an end of pressure-bearing spring is installed in the pressing spring groove, and the other end is relative with the top cover of filter press plate, is provided with thrust block in the upper end of pressure-bearing spring groove.The purpose that the pressure-bearing spring is set in the sidewall of press filtration frame is: during discharging, filter press plate can be upspring under the effect of pressure-bearing spring automatically; The advantage that thrust block is set is, when filter press plate moves downward, is unlikely to make top cover directly to touch the press filtration frame, and each pipeline on the protection filter press plate sidewall is avoided crushing.
The bottom surface of described bottom pressing filter box links to each other with the bottom surface of portal frame.The purpose of this design is: top, the end of filtrating-pressing plate frame group are fixed, when reducing outside discharging the filtrating-pressing plate frame group is had the external force vibrations.
A side or many sides in the filtrating-pressing plate frame group are provided with lead, and lead and ground are perpendicular, and the two ends of lead are connected with the bottom surface with the end face of portal frame, and described filtrating-pressing plate frame group slides up and down along lead.The purpose of this design is: the press filtration unit can be laminated when press filtration fast.
Both sides in the filtrating-pressing plate frame group are symmetrically arranged with lead, and the filtrating-pressing plate frame group is slidingly connected by jig parts and lead; The jig parts comprise concave shape jig and oil cylinder, and described oil cylinder is fixedly connected with the non-working surface of concave shape jig, and the upper end of described concave shape jig and the top cover of filter press plate are pivotally connected, and the concave shape jig rotates along pivot under the telescopic drive of oil cylinder.Its purpose is, before injecting material in the filtrating-pressing plate frame group, under the pushing of platen, when the distance between the upper and lower end of the distance between the adjacent top cover and jig adapts, oil cylinder pushing concave shape jig makes the concave shape jig block adjacent top cover, thereby realizes the fixedly size in press filtration chamber, avoid that the pressure inequality appears in the press filtration unit when material feeding, the situation that charging is irregular.
Bilateral symmetry in the filtrating-pressing plate frame group is provided with seal member, seal member comprises support, oil cylinder and sealing block, described support is fixed on lower limb or the top cover edge of press filtration frame, oil cylinder is rack-mount, sealing block is slidingly mounted on the support, oil cylinder links to each other with the non-working surface of sealing block, and when adjacent press filtration frame lower limb and top cover closure, the oil cylinder pushing sealing block is clamped lower limb and the top cover edge of press filtration frame.The advantage of this design is: in real work, owing in the press filtration chamber entering of gases at high pressure and material arranged, when the press filtration chamber only is subject to the downward thrust of oil hydraulic cylinder, vibrations and leakage can appear in equipment, have a strong impact on the press filtration effect to material, and damage whole equipment, occur for fear of above accident, the present invention adopts seal member that the press filtration chamber is sealed, and clamps lower limb or top cover edge with the press filtration frame by the oil cylinder pushing sealing block, forms sealing; When discharging, retract by oil cylinder, remove the sealing to lower limb or the top cover edge of press filtration frame.
Described attaching parts are a kind of in brace, nut bolt or the connection chain of belt length opening.
The inner surface of described press filtration frame has the inclination edge, tilts along spending less than 90 with the angle of level.The purpose that is designed with the inclination edge herein is: can make material after by press filtration, be subject to the restriction along the gradient, and up-narrow and down-wide, make material be difficult to upwards remove with the filter press plate bottom surface, under the extruding on inclination edge, naturally fall.
In the feed pipe of each press filtration unit, pressure sensor is installed, pressure sensor by data wire with CNC is installed in the computation platform of control-register journey system controlling software link to each other, the computation platform has a plurality of Data Control ports, oil cylinder with the oil cylinder of feed pump, oil hydraulic cylinder, high-pressure pump, high-pressure hydraulic pump, promotion stripper, the oil cylinder that promotes sealing block and promotion concave shape jig links to each other respectively, and control respectively its work, wherein concrete connected mode and operation all belong to prior art, specifically utilize the PLC logic to control.Described press filtration frame sidewall, filter press plate bottom surface and adjacent top cover consist of the press filtration chamber.
A kind of method of work of automatic filter-pressing dehydration equipment, step is as follows:
1) form the press filtration chamber: starting device, computation platform control oil hydraulic cylinder moves downward, and promotes the press filtration unit, and when each press filtration frame and adjacent top cover were closed mutually, it is motionless that oil hydraulic cylinder keeps, and fixedly the press filtration chamber is big or small;
Preferably, when distance between the adjacent top cover less than the two ends of concave shape jig apart from the time, it is motionless that oil hydraulic cylinder keeps, oil cylinder pushing concave shape jig rotates along pivot; Realization is fixing to press filtration chamber size;
Preferably, when each press filtration frame and adjacent top cover were closed mutually, computation platform control oil cylinder pushing sealing block was clamped lower limb and the top cover edge of press filtration frame; Realization is to the sealing in press filtration chamber;
2) material feeding: computation platform control feed pump starts charging, the controlled pressure sensor gathers pressure data simultaneously, feed pump is by the press filtration chamber charging of feed pipe in the press filtration frame, when the pressure in the press filtration chamber is 0.5-4MPa, feed pump stops charging, wherein feed pump is equipped with check valve, after stopping charging, material can not flow backwards;
3) press filtration: computation platform control oil hydraulic cylinder continues to move downward, and controls simultaneously high-pressure pump and starts air inlet;
Preferably, the oil cylinder that promotes the concave shape jig is retracted, and the concave shape jig rotates along pivot, removes fixing the press filtration chamber;
4) when the pressure in the press filtration chamber is 10-30MPa, it is motionless that oil hydraulic cylinder keeps, and pressing filtering liquid enters in filter press plate or the bottom pressing filter box by through hole, and pressing filtering liquid confluxes in the groove, is blown out the filtrating-pressing plate frame group by gases at high pressure along drain pipe immediately;
5) blow material: drain pipe is closed in computation platform control, pumps into gases at high pressure in press filtration unit separately, and other high pressure admission hole stops pump gas, exchanging pump gas then, and oil hydraulic cylinder moves upward, and the material after the press filtration is blown to the lower end of press filtration frame;
Preferably, when drain pipe was closed in the control of computation platform, oil cylinder drove sealing block and retreats, and removed the sealing state in press filtration chamber;
6) discharging: oil hydraulic cylinder continues to move upward, and drives between press filtration unit and the bottom pressing filter box to be separated from each other, and computation platform control stripper pusher is finished a press filtration.
Advantage of the present invention is:
1, facility compact of the present invention can be arranged in pairs or groups arbitrarily according to the needs of output the press filtration unit is installed;
2, the present invention is energy-efficient, and easy to maintenance quick, the press filtration unit is independent Unit Design, and detachable maintaining does not affect the normal operation of other unit separately;
3, of the present inventionly utilize the pressure differential that is higher than 4～8 times of standard machinery dehydration equipments that hydraulic pressure forms on the medium two sides of specially made structure as motive force, make the conditioning sludge water content be forced through filter medium, form filtrate, and solid particle is trapped within and forms filter cake on the medium, thereby reach the purpose of deep dehydration, moisture content is reduced to below 60%, realizes that minimizing is more than 50%;
4, strong adaptability both had been applicable to moisture about 80% dewatered sludge, was applicable to again the thickened sludge about moisture 90%-98%;
5, applied range is applicable to municipal sludge, the industrial sludges such as papermaking, printing and dyeing, pharmacy;
6, automaticity is high: charging, discharging, filter medium flushing process are full-automatic operation, and control-register journey system controlling software and PLC logic are closed the monitoring of circulation breakpoint among the application CNC, and the lignin-sludge overall process is had controllability; Equipment operation and the sludge press filtration situation of each separate unit of remote real-time monitoring.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1, and equipment is in the discharging state;
Fig. 2 is the structural representation of bottom pressing filter box and adjacent press filtration unit among Fig. 1;
Fig. 3 be the adjacent press filtration unit of Fig. 1 when material feeding, use the structural scheme of mechanism of jig parts, equipment is in the material feeding state;
Fig. 4 be the adjacent press filtration unit of Fig. 1 when material feeding, do not use the structural scheme of mechanism of jig parts;
Fig. 5 is the top view of Fig. 3;
Structural representation when Fig. 6 is the employing seal member of adjacent 2 the press filtration unit in the embodiment of the invention 2;
Fig. 7 is the material after embodiment 3 press filtrations;
Fig. 8 is the attaching parts of embodiment 1.
In Fig. 1-8,1, oil hydraulic cylinder; 2, portal frame; 3, platen; 4, press filtration unit; 5, attaching parts (brace); 6, the material after the press filtration; 7, filter press plate top cover; 8, filter membrane; 9, thrust block; 10, pressure-bearing spring; 11, discharging push pedal; 12, bottom pressing filter box; 13, lead; 14, drain pipe; 15, through hole; 16, feed pipe; 17, high pressure admission hole; 18, charging aperture; 19, press filtration frame lower limb; 20, groove; 21, filter press plate; 22, press filtration frame; 23, oil cylinder (the push-and-pull sealing block is used); 24, oil cylinder (connecting the concave shape jig uses); 25, concave shape jig; 26, pivot; 27, support; 28, treat the press filtration material; 29, sealing block; 30, interlocking boss; 31, pressure-bearing spring groove; 32, inclination edge.
The specific embodiment
Below in conjunction with embodiment and Figure of description the present invention is described in detail, but is not limited to this.
In the feed pipe 16 of each press filtration unit 4, pressure sensor is installed, pressure sensor by data wire with CNC is installed in the computation platform of control-register journey system controlling software link to each other, the computation platform has a plurality of Data Control ports, oil cylinder with the oil cylinder of feed pump, oil hydraulic cylinder, high-pressure pump, high-pressure hydraulic pump, promotion stripper, the oil cylinder that promotes sealing block and promotion concave shape jig links to each other respectively, and control respectively its work, wherein concrete connected mode and operation all belong to prior art, specifically utilize the PLC logic to control.
Embodiment 1,
A kind of automatic filter-pressing dehydration equipment comprises portal frame 2, oil hydraulic cylinder 1, platen 3 and filtrating-pressing plate frame group; Oil hydraulic cylinder 1 is installed in the top of portal frame 2, and platen 3 links to each other with oil hydraulic cylinder 1, and platen 3 links to each other with the filtrating-pressing plate frame group; It is characterized in that described filtrating-pressing plate frame group comprises press filtration unit 4 and bottom pressing filter box 12; Press filtration unit 4 is above bottom pressing filter box 12, press filtration unit 4 comprises filter press plate and press filtration frame 22, described filter press plate comprises top cover, sidewall and bottom surface, sidewall at filter press plate has high pressure pore 17, feed pipe 16 and drain pipe 14, charging aperture 18, through hole 15 and the groove 20 of perforation are arranged in the bottom surface of filter press plate, and described feed pipe 16 links to each other with charging aperture 18; The water inlet end of described drain pipe 14 is installed in the groove 20; In the bottom surface of filter press plate, and with the contacted one side of material filter membrane 8 is arranged, on filter membrane 8 and the position corresponding with charging aperture 18 through hole 15 is arranged; The shape of filter press plate bottom shape and press filtration frame 22 adapts, and the filter press plate bottom surface is movably arranged in the press filtration frame 22; Filter press plate and press filtration frame 22 are connected by interlocking boss 30: outward flange has boss in the lower end of filter press plate 21, and inward flange has boss in press filtration frame upper end, more than two boss form interlocking boss 30; Described bottom pressing filter box 12 comprises top cover, sidewall and bottom surface, at the sidewall of bottom pressing filter box high pressure pore 17 and drain pipe 14 is arranged, and at the top cover of bottom pressing filter box through hole 15 is arranged; Fluted 20 on the bottom surface of bottom pressing filter box 12, the water inlet end of described drain pipe 14 is installed in the groove 20; Top cover upper surface at the bottom pressing filter box has filter membrane 8.
Described charging aperture 18 is arranged on the geometric center position of filter press plate bottom surface.
The quantity of described press filtration unit 4 is 3, arranges from top to bottom: since second press filtration unit, through hole 15 is arranged on the top cover of filter press plate in the press filtration unit 4, at the upper surface of its top cover 7 filter membrane 8 is arranged; Link to each other by attaching parts 5 between the press filtration unit 4, between bottom pressing filter box 12 and the adjacent press filtration unit, under action of gravitation, attaching parts 5 make between the press filtration unit 4, the distance of level altitude is arranged between bottom pressing filter box 12 and the adjacent press filtration unit 4.Described attaching parts 5 are the brace of belt length opening.
In the sidewall of press filtration frame 22, be vertically installed with a plurality of pressure-bearing spring grooves 31, an end of pressure-bearing spring 10 is installed in the pressing spring groove 31, and the other end is relative with the top cover 7 of filter press plate, is provided with thrust block 9 in the upper end of pressure-bearing spring groove 31.
In the both sides of filtrating-pressing plate frame group, be symmetrically arranged with lead 13, the filtrating-pressing plate frame group is slidingly connected by jig parts and lead 13; The jig parts comprise concave shape jig 25 and oil cylinder 24, described oil cylinder 24 is fixedly connected with the non-working surface of concave shape jig 25, the upper end of described concave shape jig 25 is connected by pivot 26 with the top cover of filter press plate 7, and concave shape jig 25 rotates along pivot under the telescopic drive of oil cylinder 24.
Embodiment 2,
A kind of method of work of automatic filter-pressing dehydration equipment as described in Example 1, step is as follows:
1) forms the press filtration chamber: starting device, computation platform control oil hydraulic cylinder 1 moves downward, and promotes press filtration unit 4, when distance between the adjacent top cover less than the two ends of concave shape jig 25 apart from the time, oil hydraulic cylinder 1 keeps motionless, and oil cylinder 24 promotes concave shape jig 25 and rotates along pivot; Realization is fixing to press filtration chamber size;
2) material feeding: computation platform control feed pump starts charging, the controlled pressure sensor gathers pressure data simultaneously, feed pump is by the press filtration chamber charging of feed pipe 16 in the press filtration frame 22, when the pressure in the press filtration chamber is 1MPa, feed pump stops charging, wherein feed pump is equipped with check valve, after stopping charging, material can not flow backwards;
3) press filtration: computation platform control oil hydraulic cylinder 1 continues to move downward, and controls simultaneously high-pressure pump and starts air inlet; The oil cylinder 24 that promotes the concave shape jig is retracted, and concave shape jig 25 rotates along pivot 26, removes fixing the press filtration chamber;
4) when the pressure in the press filtration chamber is 20MPa, it is motionless that oil hydraulic cylinder 1 keeps, and pressing filtering liquid enters in filter press plate or the bottom pressing filter box 12 by through hole 15, and pressing filtering liquid confluxes in the groove 20, is blown out the filtrating-pressing plate frame group by gases at high pressure along drain pipe 14 immediately;
5) blow material: drain pipe 14 is closed in computation platform control, pumps into gases at high pressure in press filtration unit separately, and other air admission hole stops pump gas, exchanging pump gas then, and oil hydraulic cylinder 1 moves upward, and the material after the press filtration is blown to the lower end of press filtration frame 22;
6) discharging: oil hydraulic cylinder 1 continues to move upward, and drives between press filtration unit 4 and the bottom pressing filter box 12 to be separated from each other, and computation platform control stripper 44 pushers are finished a press filtration.
Embodiment 3,
Automatic filter-pressing dehydration equipment as described in Example 1, its difference be,
The quantity of described press filtration unit 4 is 6, bilateral symmetry in the filtrating-pressing plate frame group is provided with seal member, seal member comprises support 27, oil cylinder 23 and sealing block 29, described support 27 is fixed on the lower limb 19 of press filtration frame, oil cylinder 23 is installed on the support 27, and sealing block 29 is slidingly mounted on the support 27, and oil cylinder 23 links to each other with the non-working surface of sealing block 29, when adjacent press filtration frame 22 lower limbs and top cover closure, oil cylinder 23 promotes lower limb 19 and the top cover edge that sealing blocks 29 are clamped the press filtration frame.
The inner surface of described press filtration frame has along 32, tilts and spends less than 90 with the angle of level along 32.
Filter press plate top cover 7 inner surfaces have reinforcement.
Embodiment 4,
A kind of method of work of automatic filter-pressing dehydration equipment as described in Example 3, its difference is: step is as follows:
Step 1) in, when each press filtration frame and adjacent top cover were closed mutually, computation platform control oil cylinder pushing sealing block was clamped lower limb and the top cover edge of press filtration frame; Realization is to the sealing in press filtration chamber;
Step 2) in, when the pressure data in the press filtration chamber reached 0.5MPa, feed pump stopped charging;
Step 4) in, when the pressure in the press filtration chamber was 25MPa, it is motionless that oil hydraulic cylinder keeps, and pressing filtering liquid enters in filter press plate or the bottom pressing filter box by through hole, and pressing filtering liquid confluxes in the groove, is blown out the filtrating-pressing plate frame group by gases at high pressure along drain pipe immediately;
Step 5) in, when drain pipe was closed in the control of computation platform, oil cylinder drove sealing block and retreats, and removed the sealing state in press filtration chamber.
Top cover described in the embodiment 2 and 4 comprises the top cover of filter press plate and the top cover of bottom pressing filter box.
Result of implementation is summed up:
Material water ratio after the dehydration reaches 40-60%
Claims (1)
1. an automatic filter-pressing dehydration equipment comprises portal frame, oil hydraulic cylinder, platen and filtrating-pressing plate frame group; Oil hydraulic cylinder is installed in the top of portal frame, and platen links to each other with oil hydraulic cylinder, and platen links to each other with the filtrating-pressing plate frame group; It is characterized in that described filtrating-pressing plate frame group comprises press filtration unit and bottom pressing filter box; The press filtration unit is above the pressing filter box of bottom, the press filtration unit comprises filter press plate and press filtration frame, described filter press plate comprises top cover, sidewall and bottom surface, sidewall at filter press plate has high pressure pore, feed pipe and drain pipe, charging aperture, through hole and the groove of perforation are arranged in the bottom surface of filter press plate, and described feed pipe links to each other with charging aperture; The water inlet end of described drain pipe is installed in the groove; In the bottom surface of filter press plate, and with the contacted one side of material filter membrane is arranged, on filter membrane and the position corresponding with charging aperture through hole is arranged; The shape of filter press plate bottom shape and press filtration frame adapts, and the filter press plate bottom surface is movably arranged in the press filtration frame; Filter press plate is connected by limiting component with the press filtration frame; Described bottom pressing filter box comprises top cover, sidewall and bottom surface, at the sidewall of bottom pressing filter box high pressure pore and drain pipe is arranged, and at the top cover of bottom pressing filter box through hole is arranged; Fluted on the bottom surface of bottom pressing filter box, the water inlet end of described drain pipe is installed in the groove; Top cover upper surface at the bottom pressing filter box has filter membrane.
2, automatic filter-pressing dehydration equipment as claimed in claim 1 is characterized in that, described charging aperture is arranged on the geometric center position of filter press plate bottom surface; The inner surface of described press filtration frame has the inclination edge, tilts along spending less than 90 with the angle of level; Described filter press plate top cover inner surface has reinforcement.
3, automatic filter-pressing dehydration equipment as claimed in claim 1, it is characterized in that, the quantity of described press filtration unit is one or more, arrange from top to bottom: when the quantity of press filtration unit is 1, link to each other by attaching parts between press filtration unit and the bottom pressing filter box, under action of gravitation, attaching parts make the distance that level altitude is arranged between press filtration unit and the bottom pressing filter box; When the quantity of press filtration unit is a plurality of, since second press filtration unit, on the top cover of filter press plate through hole is arranged in the press filtration unit, at the upper surface of its top cover filter membrane is arranged; Between the press filtration unit, link to each other by attaching parts between bottom pressing filter box and the adjacent press filtration unit, under action of gravitation, attaching parts make between the press filtration unit, the distance of level altitude is arranged between bottom pressing filter box and the adjacent press filtration unit; Described attaching parts are a kind of in brace, nut bolt or the connection chain of belt length opening.
4, automatic filter-pressing dehydration equipment as claimed in claim 3 is characterized in that, the quantity of press filtration unit is 6.
5, automatic filter-pressing dehydration equipment as claimed in claim 1, it is characterized in that, described limiting component is a kind of in the boss of connection chain or interlocking, described interlocking boss: outward flange has boss in the lower end of filter press plate, at press filtration frame upper end inward flange boss is arranged, more than two boss form the interlocking boss.
6, automatic filter-pressing dehydration equipment as claimed in claim 1, it is characterized in that, in the sidewall of press filtration frame, be vertically installed with a plurality of pressure-bearing spring grooves, one end of pressure-bearing spring is installed in the pressure-bearing spring groove, the other end is relative with the top cover of filter press plate, is provided with thrust block in the upper end of pressure-bearing spring groove.
7, automatic filter-pressing dehydration equipment as claimed in claim 1 is characterized in that, the bottom surface of described bottom pressing filter box links to each other with the bottom surface of portal frame.
8, automatic filter-pressing dehydration equipment as claimed in claim 1, it is characterized in that be provided with lead in a side or many sides of filtrating-pressing plate frame group, lead and ground are perpendicular, the two ends of lead are connected with the bottom surface with the end face of portal frame, and described filtrating-pressing plate frame group slides up and down along lead.
9, automatic filter-pressing dehydration equipment as claimed in claim 8 is characterized in that, the both sides in the filtrating-pressing plate frame group are symmetrically arranged with lead, and the filtrating-pressing plate frame group is slidingly connected by jig parts and lead; The jig parts comprise concave shape jig and oil cylinder, and described oil cylinder is fixedly connected with the non-working surface of concave shape jig, and the upper end of described concave shape jig and the top cover of filter press plate are pivotally connected, and the concave shape jig rotates along pivot under the telescopic drive of oil cylinder.
10, automatic filter-pressing dehydration equipment as claimed in claim 1, it is characterized in that, bilateral symmetry in the filtrating-pressing plate frame group is provided with seal member, seal member comprises support, oil cylinder and sealing block, described support is fixed on lower limb or the top cover edge of press filtration frame, oil cylinder is rack-mount, sealing block is slidingly mounted on the support, oil cylinder links to each other with the non-working surface of sealing block, when adjacent press filtration frame lower limb and top cover closure, the oil cylinder pushing sealing block is clamped lower limb and the top cover edge of press filtration frame.
11, the method for work of a kind of automatic filter-pressing dehydration equipment as claimed in claim 1, step is as follows:
1) form the press filtration chamber: starting device, computation platform control oil hydraulic cylinder moves downward, and promotes the press filtration unit, and when each press filtration frame and adjacent top cover were closed mutually, it is motionless that oil hydraulic cylinder keeps, and fixedly the press filtration chamber is big or small;
2) material feeding: computation platform control feed pump starts charging, the controlled pressure sensor gathers pressure data simultaneously, feed pump is by the press filtration chamber charging of feed pipe in the press filtration frame, when the pressure in the press filtration chamber is 0.5-4MPa, feed pump stops charging, wherein feed pump is equipped with check valve, after stopping charging, material can not flow backwards;
3) press filtration: computation platform control oil hydraulic cylinder continues to move downward, and controls simultaneously high-pressure pump and starts air inlet;
4) when the pressure in the press filtration chamber is 10-30MPa, it is motionless that oil hydraulic cylinder keeps, and pressing filtering liquid enters in filter press plate or the bottom pressing filter box by through hole, and pressing filtering liquid confluxes in the groove, is blown out the filtrating-pressing plate frame group by gases at high pressure along drain pipe immediately;
5) blow material: drain pipe is closed in computation platform control, pumps into gases at high pressure in press filtration unit separately, and other air admission hole stops pump gas, exchanging pump gas then, and oil hydraulic cylinder moves upward, and the material after the press filtration is blown to the lower end of press filtration frame;
6) discharging: oil hydraulic cylinder continues to move upward, and drives between press filtration unit and the bottom pressing filter box to be separated from each other, and computation platform control stripper pusher is finished a press filtration;
In the step 1), when distance between the adjacent top cover less than the two ends of concave shape jig apart from the time, it is motionless that oil hydraulic cylinder keeps, oil cylinder pushing concave shape jig rotates along pivot; Realization is fixing to press filtration chamber size;
In the step 1), when each press filtration frame and adjacent top cover were closed mutually, computation platform control oil cylinder pushing sealing block was clamped lower limb and the top cover edge of press filtration frame; Realization is to the sealing in press filtration chamber;
In the step 3), the oil cylinder that promotes the concave shape jig is retracted, and the concave shape jig rotates along pivot, removes fixing the press filtration chamber;
In the step 5), when drain pipe was closed in the control of computation platform, oil cylinder drove sealing block and retreats, and removed the sealing state in press filtration chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101106372A CN102225260B (en) | 2011-04-29 | 2011-04-29 | Automatic filter-pressing dehydration device and working method thereof |
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| CN2011101106372A CN102225260B (en) | 2011-04-29 | 2011-04-29 | Automatic filter-pressing dehydration device and working method thereof |
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| CN102225260B true CN102225260B (en) | 2013-05-29 |
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