CN102225259A - Horizontal automatic pressure filtration and dehydration equipment, and working method thereof - Google Patents
Horizontal automatic pressure filtration and dehydration equipment, and working method thereof Download PDFInfo
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- CN102225259A CN102225259A CN2011101105187A CN201110110518A CN102225259A CN 102225259 A CN102225259 A CN 102225259A CN 2011101105187 A CN2011101105187 A CN 2011101105187A CN 201110110518 A CN201110110518 A CN 201110110518A CN 102225259 A CN102225259 A CN 102225259A
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Abstract
The invention relates to horizontal automatic pressure filtration and dehydration equipment, and a working method thereof, and belongs to the environmentally friendly press technology. The horizontal automatic pressure filtration and dehydration equipment comprises one or more press filtration units and bottom press filtration tanks. Each one of the press filtration units comprises a press filtration plate and a press filtration frame. In the invention, water-containing material is subjected to a press filtration process in a press filtration flame through a press filtration plate in a way of piston motion thus a press filtration uniformity of a press filtration plate is high, and a deformation and wear degree is low; material is injected into a press filtration flame through a sidewall of a press filtration plate thus a bearing resistance of a press filtration flame is improved and a press filtration process under high pressure can be carried out successfully; high pressure gas is blown into a press filtration cavity through through-hole located in the bottom surface and the top surface of the press filtration cavity thus a material discharging process after press filtration is easy; and a drain pipe is arranged in a press filtration plate and press filtration liquid can be discharged from equipment through the drain pipe, thus the press filtration liquid can not flow back into dried material and press filtration effects are guaranteed.
Description
Technical field
The present invention relates to a kind of horizontal automatic filter-press 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 influences sludge treatment and resource, the domestic now technology that adopts is cheaply carried out processed to the mud of moisture content about 80% more, and wherein the method for carrying out deep dehydration at moisture 75%～85% mud mainly contains: heat drying: investment is high, energy consumption is big; Microwave drying: investment is high, energy consumption is big; Solar energy drying: operating cost is low, be subjected to weather effect big; Board-like barrier film dehydration: maintenance cost height, the thickened sludge of suitable moisture content more than 90% only.Therefore the plate and frame filter press that above-mentioned board-like barrier film evaporation is adopted is widely used because have the advantage of mass squeezing.But use horizontal plate and frame filter press to have following deficiency now on the market: 1, narrow application range: can only squeeze up to the material more than 90% at 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 the work that can influence whole production line aborning 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, influences the press filtration effect; 5, automaticity is low, can not adjust the progress of work automatically at 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 horizontal pressure filter and 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, the maintenance cost height, 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 influences the work of whole production line.
Summary of the invention
Deficiency at existing filtering equipment the invention provides a kind of horizontal automatic filter-press 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 dewatered sludge about 80% and moisture 90%-98% that sewage treatment plant is got rid of, and moisture percentage in sewage sludge is reduced 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 horizontal automatic filter-press dehydration equipment of the present invention is as follows:
A kind of horizontal automatic filter-press dehydration equipment comprises bracing frame, oil hydraulic cylinder, platen and press filtration sheet frame group; Oil hydraulic cylinder is installed in the front end of bracing frame, and platen links to each other with oil hydraulic cylinder, and platen links to each other with press filtration sheet frame group; Described press filtration sheet frame group is installed on the guide post, it is characterized in that, described press filtration sheet frame group comprises press filtration unit and bottom pressing filter box; The press filtration unit comprises press filtration plate and press filtration frame, described press filtration plate comprises top cover, sidewall and bottom surface, high pressure pore, feed pipe and drain pipe are arranged on the sidewall of press filtration plate, charging aperture, the through hole of perforation arranged in the bottom surface of press filtration plate, described feed pipe links to each other with charging aperture; In the bottom surface of press filtration plate, and filter membrane is arranged with the contacted one side of material, on the filter membrane and with the corresponding position of charging aperture on through hole is arranged; The shape of press filtration plate bottom shape and press filtration frame adapts, and press filtration plate bottom surface is movably arranged in the press filtration frame; The press filtration plate is connected by limiting component with the press filtration frame; Described bottom pressing filter box comprises top cover, sidewall and bottom surface, and high pressure pore and drain pipe are arranged on the sidewall of bottom pressing filter box, on the top cover of bottom pressing filter box through hole is arranged; Top cover upper surface at the bottom pressing filter box has filter membrane; The bottom surface of described bottom pressing filter box links to each other with the end of bracing frame.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 press filtration plate with the piston motion, than the existing diaphragm of rubber deformation press filtration water-containing materials that passes through, its advantage is, the press filtration uniformity height of press filtration plate, and the deformation wearing and tearing are little; 2, the present invention is by the sidewall injecting material of press filtration 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 the 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 drain pipe of the side of the side of press filtration plate and press filtration unit, bottom is: when the press filtration material, the liquid that squeezes out can enter respectively in press filtration plate and the press filtration unit, bottom by through hole, liquid flows out press filtration plate advantage by drain pipe automatically and is: the liquid that can not that press filtration goes out is back in the material that drains when discharging, and the press filtration effect is maintained.Described press filtration frame sidewall, press filtration plate bottom surface and adjacent top cover constitute the press filtration chamber.
Described charging aperture is arranged on the geometric center position of press filtration plate bottom surface.
The quantity of described press filtration unit is one or more, self-supporting frame front end terminad is arranged: 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 the stretching action of oil hydraulic cylinder, attaching parts make between press filtration unit and the bottom pressing filter box the fixing horizontal distance; When the quantity of press filtration unit is a plurality of,, on the top cover of press filtration plate through hole is arranged in the press filtration unit, on the upper surface of its top cover, filter membrane is arranged since second press filtration unit; Between the press filtration unit, link to each other by attaching parts between bottom pressing filter box and the adjacent press filtration unit, when discharging, under the stretching action of oil hydraulic cylinder, attaching parts make between the press filtration unit, the fixing horizontal distance is arranged between bottom pressing filter box and the adjacent press filtration unit; The advantage of above technical characterictic is: 1, the advantage of a plurality of press filtration unit is, the squeezing material can be carried out in batches, independently feeding manner and squeezing space are independent of each other press filtration unit adjacent one another are, and 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 press filtration finishes when needing discharging, and the platen retraction, press filtration unit, top separates the fixing horizontal distance with the bottom pressing filter box automatically by attaching parts, for the unloading of material provides necessary path spacing.
Described limiting component is a kind of in connection chain or the interlocking boss, and described interlocking boss: outward flange has boss in the lower end of press filtration plate, and inward flange has boss in press filtration frame upper end, more than two boss form the interlocking boss; She Ji advantage is herein, adopts connection chain can increase the bonding strength of press filtration plate and press filtration frame, guarantees that press filtration plate bottom surface is arranged in the press filtration frame; Adopt the interlocking boss when squeezing, the interlocking boss has increased press filtration plate and press filtration frame at sealing intensity longitudinally, and when discharging, also playing increases press filtration plate and the bonding strength of press filtration frame and the effect of stability.
Preferably, described press filtration unit is 6.
Press filtration plate top cover inner surface has reinforcement.Design herein has the advantage of reinforcement to be, the press filtration plate top board bearing strength of pressure-bearing is increased, and improves the press filtration effect.
In the sidewall of press filtration frame, be horizontally disposed 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 press filtration 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, the press filtration plate can be under the effect of pressure-bearing spring automatically and the press filtration frame flick; The advantage that thrust block is set is, when the press filtration material, is unlikely to make the directly corresponding press filtration frame of contact of top cover, and each pipeline on the protection press filtration plate sidewall is avoided crushing.
Both sides in press filtration sheet frame group are symmetrically arranged with cross bar, and press filtration sheet frame group is slidingly connected by jig parts and cross bar; On cross bar, slide and be provided with the jig parts, the jig parts comprise concave shape jig and oil cylinder, described oil cylinder is fixedlyed connected with the non-working surface of concave shape jig, the top cover of press filtration plate is by pivotally connected in the upper end of described concave shape jig and the press filtration unit, and the concave shape jig rotates at the telescopic drive lower edge of oil cylinder pivot.Distance between the distance of the upper and lower end face of jig and the adjacent top cover adapts herein, and its purpose is, the fixing size in press filtration chamber before injecting material, and the concave shape jig blocks adjacent top cover, avoids the press filtration unit pressure inequality to occur, the situation that charging is irregular.
Bilateral symmetry in press filtration sheet frame group is provided with seal member, seal member comprises support, oil cylinder and sealing block, described support is fixed on the 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 were closed, what oil cylinder promoted sealing block clamped the adjacent top cover edge and the lower limb 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 subjected to the 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 entire equipment, take place for fear of the above accident, the present invention adopts seal member that the press filtration chamber is sealed, and clamps the edge of adjacent top cover and the lower limb of press filtration frame by the external force effect promotion sealing block of oil cylinder, forms the press filtration chamber of sealing.
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.Design herein has the purpose on inclination edge to be: can make material after, be subjected to restriction along the gradient by press filtration, and beloid, make material be difficult to remove with press filtration plate bottom surface, under the extruding on inclination edge, fall naturally.
Upper and lower, four orientation attributes of top and bottom of naming among the present invention all are according to the front end of bracing frame and terminal the definition, go up with respect to following more close supporting framing front end; Down with respect to last more close bracing frame end; The top is with respect to the more close supporting framing front end in the end; The end, is with respect to the more close bracing frame end in top.Described top cover comprises the top cover of press filtration plate and the top cover of bottom pressing filter box.
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, link to each other with the oil cylinder that promotes the concave shape jig with the oil cylinder of feed pump, oil hydraulic cylinder, high-pressure pump, high-pressure hydraulic pump, promotion sealing block respectively, and control its work respectively, wherein concrete connected mode and operation all belong to prior art, specifically utilize the PLC logic to control.
Described press filtration frame sidewall, press filtration plate bottom surface and adjacent top cover constitute the press filtration chamber.
A kind of method of work of horizontal automatic filter-press dehydration equipment, step is as follows:
1) form the press filtration chamber: starting device, computation platform control oil hydraulic cylinder be to the end motion of bracing frame, and when each press filtration frame and adjacent top cover were closed mutually, the oil hydraulic cylinder maintenance was motionless, fixedly press filtration chamber size;
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 promotes the concave shape jig and 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 promoted lower limb and the top cover edge that sealing block is clamped the 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 is gathered 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 the end motion of bracing frame, controls high-pressure pump simultaneously and starts air inlet;
Preferably, promote the oil cylinder withdrawal of concave shape jig, 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 press filtration plate or the bottom pressing filter box by through hole, is blown out press filtration sheet frame group by gases at high pressure along drain pipe immediately;
5) blow material: drain pipe is closed in the control of computation platform, pump into gases at high pressure in press filtration unit separately, other high pressure admission hole stops pump gas, then exchanging pump gas, oil hydraulic cylinder blows to the material after the press filtration lower end of press filtration frame to the nose motion of bracing 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 the nose motion to bracing frame, 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 is easy to maintenance quick, and the press filtration unit is independent unit design, can dismantle maintenance separately, does not influence the operate as normal of other unit;
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, adaptability is strong, both has been applicable to moisture about 80% dewatered sludge, is applicable to the thickened sludge about moisture 90%-98% again;
5, applied range is applicable to municipal sludge, industrial sludges such as papermaking, printing and dyeing, pharmacy;
6, automaticity height: 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, have controllability to handling the mud overall process; The 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 representation 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 representation of jig parts;
Fig. 5 is the vertical 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;
In Fig. 1-6,1, oil hydraulic cylinder; 2, bracing frame; 3, platen; 4, press filtration unit; 5, attaching parts (brace); 6, the material after the press filtration; 7, press filtration plate top cover; 8, filter membrane; 9, thrust block; 10, pressure-bearing spring; 11, supporting framing front end; 12, bottom pressing filter box; 13, guide post; 14, drain pipe; 15, through hole; 16, feed pipe; 17, high pressure admission hole; 18, charging aperture; 19, press filtration frame lower limb; 20, bracing frame end; 21, press filtration 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; 33, cross bar.
The specific embodiment
Below in conjunction with embodiment and Figure of description the present invention is described in detail, but is not limited thereto.
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, link to each other with the oil cylinder that promotes the concave shape jig with the oil cylinder of feed pump, oil hydraulic cylinder, high-pressure pump, high-pressure hydraulic pump, promotion sealing block respectively, and control its work respectively, wherein concrete connected mode and operation all belong to prior art, specifically utilize the PLC logic to control.
Embodiment 1,
A kind of horizontal automatic filter-press dehydration equipment comprises bracing frame 2, oil hydraulic cylinder 1, platen 3 and press filtration sheet frame group; Oil hydraulic cylinder 1 is installed in the front end of bracing frame 2, and platen 3 links to each other with oil hydraulic cylinder 1, and platen 3 links to each other with press filtration sheet frame group; Described press filtration sheet frame group is installed on the guide post 13, it is characterized in that, described press filtration sheet frame group comprises press filtration unit 4 and bottom pressing filter box 12; Press filtration unit 4 comprises press filtration plate and press filtration frame 22, described press filtration plate comprises top cover 7, sidewall and bottom surface, high pressure pore 17, feed pipe 16 and drain pipe 14 are arranged on the sidewall of press filtration plate, charging aperture 18, the through hole 15 of perforation are arranged in the bottom surface of press filtration plate, and described feed pipe 16 links to each other with charging aperture 18; In the bottom surface of press filtration plate, and filter membrane 8 is arranged with the contacted one side of material, on the filter membrane 8 and with charging aperture 18 corresponding positions on through hole 15 is arranged; The shape of press filtration plate bottom shape and press filtration frame 22 adapts, and press filtration plate bottom surface is movably arranged in the press filtration frame 22; Press filtration plate and press filtration frame 22 are connected by limiting component; Described bottom pressing filter box 12 comprises top cover, sidewall and bottom surface, and high pressure pore 17 and drain pipe 14 are arranged on the sidewall of bottom pressing filter box 12, and through hole 15 is arranged on the top cover of bottom pressing filter box; Top cover upper surface at the bottom pressing filter box has filter membrane 8; The bottom surface of described bottom pressing filter box 12 links to each other with the end of bracing frame 2.
Described charging aperture 18 is arranged on the geometric center position of press filtration plate bottom surface.
The quantity of described press filtration unit 4 is 3, and self-supporting frame front end 11 terminads 20 are arranged: since second press filtration unit, on the top cover 7 of press filtration plate through hole 15 is arranged in the press filtration unit, filter membrane 8 is arranged on the upper surface of its top cover; Link to each other by attaching parts 5 between the press filtration unit, between bottom pressing filter box and the adjacent press filtration unit, when discharging, under the stretching action of oil hydraulic cylinder 1, attaching parts 5 make between the press filtration unit, the fixing horizontal distance is arranged between bottom pressing filter box and the adjacent press filtration unit;
Described attaching parts 5 are the brace of belt length opening; Outward flange has boss in the lower end of press filtration plate, at press filtration frame upper end inward flange boss is arranged, more than two boss form interlocking boss 30;
In the sidewall of press filtration frame 22, be horizontally disposed 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 press filtration plate, is provided with thrust block 9 in the upper end of pressure-bearing spring groove 31.
In the both sides of press filtration sheet frame group, be symmetrically arranged with cross bar 33, press filtration sheet frame group is slidingly connected by jig parts and cross bar 33; On cross bar 33, slide and be provided with the jig parts, the jig parts comprise concave shape jig 25 and oil cylinder 24, described oil cylinder 24 is fixedlyed connected with the non-working surface of concave shape jig 25, the upper end of described concave shape jig 25 is connected with the logical 7 mistake pivots 26 of top cover of press filtration plate in the press filtration unit, and concave shape jig 25 rotates at the telescopic drive lower edge of oil cylinder 24 pivot 26.
Embodiment 2,
As the method for work of embodiment 1 described a kind of horizontal automatic filter-press dehydration equipment, step is as follows:
1) forms the press filtration chamber: starting device, computation platform control oil hydraulic cylinder 1 is to the end motion of bracing frame 2, 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, oil cylinder 24 promotes concave shape jigs 25 and rotates along pivot 26; Realization is fixing to press filtration chamber size;
2) material feeding: computation platform control feed pump starts charging, the controlled pressure sensor is gathered pressure data simultaneously, feed pump is by the press filtration chamber charging of feed pipe 16 in 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 end 20 motions of bracing frame, controls high-pressure pump simultaneously and starts air inlet; Promote oil cylinder 24 withdrawals of concave shape jig, 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, oil hydraulic cylinder 1 keeps motionless, and pressing filtering liquid enters in press filtration plate or the bottom pressing filter box 12 by through hole 15, is blown out press filtration sheet frame group by gases at high pressure along drain pipe 14 immediately;
5) blow material: drain pipe 14 is closed in the control of computation platform, pump into gases at high pressure in press filtration unit 4 separately, other high pressure admission hole stops pump gas, then exchanging pump gas, oil hydraulic cylinder blows to the material after the press filtration 6 lower end of press filtration frame to the nose motion of bracing frame;
6) discharging: oil hydraulic cylinder continues the nose motion to bracing frame, drives between press filtration unit 4 and the bottom pressing filter box 12 to be separated from each other, and computation platform control stripper 11 pushers are finished a press filtration.
Top cover described in the embodiment 2 and 4 comprises the top cover of press filtration plate and the top cover of bottom pressing filter box.
Embodiment 3,
As horizontal automatic filter-press dehydration equipment as described in the embodiment 1, its difference is, the number of described press filtration unit 4 is 6, bilateral symmetry in press filtration sheet 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 17 of press filtration frame, oil cylinder 23 is installed on the support 27, sealing block 29 is slidingly mounted on the support 27, oil cylinder 23 links to each other with the non-working surface of sealing block 29, when adjacent press filtration frame lower limb 19 and top cover were closed, what oil cylinder 23 promoted sealing blocks clamped the adjacent top cover edge and the lower limb of press filtration frame.
The inner surface of described press filtration frame 22 has inclination along 32, tilts and spends less than 90 with the angle of level along 32.
Press filtration plate top cover 7 inner surfaces have reinforcement.
Embodiment 4,
As the method for work of embodiment 2 described a kind of horizontal automatic filter-press dehydration equipment, step is as follows:
In the step 1), when each press filtration frame and adjacent top cover were closed mutually, computation platform control oil cylinder 23 promoted lower limb 19 and the top cover edge that sealing blocks 29 are clamped the 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;
In the step 4), when the pressure in the press filtration chamber was 25MPa, oil hydraulic cylinder 1 kept motionless, and pressing filtering liquid enters in press filtration plate or the bottom pressing filter box 12 by through hole 15, is blown out press filtration sheet frame group by gases at high pressure along drain pipe immediately;
In the step 5), when drain pipe 14 was closed in the control of computation platform, oil cylinder 23 drove sealing block 29 and retreats, and removes the sealing state in press filtration chamber.
Top cover described in the embodiment 2 and 4 comprises the top cover of press filtration plate and the top cover of bottom pressing filter box.
Result of implementation is summed up:
1) material water ratio behind the filter-press dehydration reaches 40-60%.
Claims (8)
1. a horizontal automatic filter-press dehydration equipment comprises bracing frame, oil hydraulic cylinder, platen and press filtration sheet frame group; Oil hydraulic cylinder is installed in the front end of bracing frame, and platen links to each other with oil hydraulic cylinder, and platen links to each other with press filtration sheet frame group; Described press filtration sheet frame group is installed on the guide post, it is characterized in that, described press filtration sheet frame group comprises press filtration unit and bottom pressing filter box; The press filtration unit comprises press filtration plate and press filtration frame, described press filtration plate comprises top cover, sidewall and bottom surface, high pressure pore, feed pipe and drain pipe are arranged on the sidewall of press filtration plate, charging aperture, the through hole of perforation arranged in the bottom surface of press filtration plate, described feed pipe links to each other with charging aperture; In the bottom surface of press filtration plate, and filter membrane is arranged with the contacted one side of material, on the filter membrane and with the corresponding position of charging aperture on through hole is arranged; The shape of press filtration plate bottom shape and press filtration frame adapts, and press filtration plate bottom surface is movably arranged in the press filtration frame; The press filtration plate is connected by limiting component with the press filtration frame; Described bottom pressing filter box comprises top cover, sidewall and bottom surface, and high pressure pore and drain pipe are arranged on the sidewall of bottom pressing filter box, on the top cover of bottom pressing filter box through hole is arranged; Top cover upper surface at the bottom pressing filter box has filter membrane; The bottom surface of described bottom pressing filter box links to each other with the end of bracing frame.
2. horizontal automatic filter-press dehydration equipment as claimed in claim 1 is characterized in that described charging aperture is arranged on the geometric center position of press filtration plate bottom surface; Preferably, the inner surface of described press filtration frame has the inclination edge, tilts along spending less than 90 with the angle of level; Preferably, press filtration plate top cover inner surface has reinforcement.
3. horizontal automatic filter-press dehydration equipment as claimed in claim 1, it is characterized in that, the quantity of described press filtration unit is one or more, self-supporting frame front end terminad is arranged: 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, when stretching, attaching parts make between press filtration unit and the bottom pressing filter box the fixing horizontal distance; When the quantity of press filtration unit is a plurality of,, on the top cover of press filtration plate through hole is arranged in the press filtration unit, on the upper surface of its top cover, filter membrane is arranged since second press filtration unit; Between the press filtration unit, link to each other by attaching parts between bottom pressing filter box and the adjacent press filtration unit, when discharging, under the stretching action of oil hydraulic cylinder, attaching parts make between the press filtration unit, the fixing horizontal distance is arranged between bottom pressing filter box and the adjacent press filtration unit; Preferably, described attaching parts are a kind of in brace, nut bolt or the connection chain of belt length opening; Preferably, described press filtration unit is 6.
4. horizontal automatic filter-press dehydration equipment as claimed in claim 1, it is characterized in that, described limiting component is a kind of in connection chain or the interlocking boss, described interlocking boss: outward flange has boss in the lower end of press filtration plate, at press filtration frame upper end inward flange boss is arranged, more than two boss form the interlocking boss.
5. horizontal automatic filter-press dehydration equipment as claimed in claim 1, it is characterized in that, in the sidewall of press filtration frame, a plurality of pressure-bearing spring grooves have been horizontally disposed with, one end of pressure-bearing spring is installed in the pressing spring groove, the other end is relative with the top cover of press filtration plate, is provided with thrust block in the upper end of pressure-bearing spring groove.
6. horizontal automatic filter-press dehydration equipment as claimed in claim 5 is characterized in that the both sides in press filtration sheet frame group are symmetrically arranged with cross bar, and press filtration sheet frame group is slidingly connected by jig parts and cross bar; On cross bar, slide and be provided with the jig parts, the jig parts comprise concave shape jig and oil cylinder, described oil cylinder is fixedlyed connected with the non-working surface of concave shape jig, the top cover of press filtration plate is by pivotally connected in the upper end of described concave shape jig and the press filtration unit, and the concave shape jig rotates at the telescopic drive lower edge of oil cylinder pivot.
7. horizontal automatic filter-press dehydration equipment as claimed in claim 1, it is characterized in that, bilateral symmetry in press filtration sheet frame group is provided with seal member, seal member comprises support, oil cylinder and sealing block, described support is fixed on the 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 were closed, what oil cylinder promoted sealing block clamped the adjacent top cover edge and the lower limb of press filtration frame.
8. the method for work of a kind of horizontal automatic filter-press 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 be to the end motion of bracing frame, and when each press filtration frame and adjacent top cover were closed mutually, the oil hydraulic cylinder maintenance was motionless, fixedly press filtration chamber size;
2) material feeding: computation platform control feed pump starts charging, the controlled pressure sensor is gathered 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 the end motion of bracing frame, controls high-pressure pump simultaneously 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 press filtration plate or the bottom pressing filter box by through hole, is blown out press filtration sheet frame group by gases at high pressure along drain pipe immediately;
5) blow material: drain pipe is closed in the control of computation platform, pump into gases at high pressure in press filtration unit separately, other high pressure admission hole stops pump gas, then exchanging pump gas, oil hydraulic cylinder blows to the material after the press filtration lower end of press filtration frame to the nose motion of bracing frame;
6) discharging: oil hydraulic cylinder continues the nose motion to bracing frame, 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;
Preferably, 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 promotes the concave shape jig and rotates along pivot; Realization is fixing to press filtration chamber size;
Preferably, in the step 1), when each press filtration frame and adjacent top cover were closed mutually, computation platform control oil cylinder promoted lower limb and the top cover edge that sealing block is clamped the press filtration frame; Realization is to the sealing in press filtration chamber;
Preferably, in the step 3), promote the oil cylinder withdrawal of concave shape jig, the concave shape jig rotates along pivot, removes fixing the press filtration chamber;
Preferably, 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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| CN2011101105187A CN102225259B (en) | 2011-04-29 | 2011-04-29 | Horizontal automatic pressure filtration and dehydration equipment, and working method thereof |
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| CN102614692A (en) * | 2012-03-30 | 2012-08-01 | 黑旋风工程机械开发有限公司 | Experimental device and method for simulating working conditions of filter press |
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| CN104492134A (en) * | 2014-12-04 | 2015-04-08 | 江苏中宜生态土研究院有限公司 | Strong pressure type sludge deep dehydration system |
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| CN106861258A (en) * | 2017-04-12 | 2017-06-20 | 江苏火焰山干燥技术有限公司 | Horizontal pressure filter |
| CN108086375B (en) * | 2017-12-18 | 2021-05-18 | 湖北河泽水利水电工程有限公司 | Urban river dredging system and working method thereof |
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