CN103130352A - Size recycling process and equipment thereof - Google Patents
Size recycling process and equipment thereof Download PDFInfo
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- CN103130352A CN103130352A CN2013101017880A CN201310101788A CN103130352A CN 103130352 A CN103130352 A CN 103130352A CN 2013101017880 A CN2013101017880 A CN 2013101017880A CN 201310101788 A CN201310101788 A CN 201310101788A CN 103130352 A CN103130352 A CN 103130352A
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Abstract
The invention discloses a size recycling process and equipment thereof. Aiming at the defects that the fiber in banknote paper wastewater is low in recycling rate, the recycled size is poor in quality, the later sludge treating load is large and the like because of the conventional size recycling mode, at the banknote paper wastewater pretreatment period, firstly, the impurities such as anti-fake line ends are eliminated by using a size-residue separating machine, the banknote paper wastewater which is subjected to residue elimination is fed to a fiber recycling machine to be subjected to size recycling, the concentration of the recycled size is 4-6%, the recycled size further flows into a double helix press master through a transit storage trough to be subjected to further concentration treatment, the concentration of the concentrated recycled size can be 25-35%, and the size recycling rate of the whole process can be greater than 80%. The size recycling process improves the size recycling rate and improves the recycled size quality, and at the same time greatly alleviates the load of later treatment facilities, reduces the sludge quantity, reduces the treatment cost, alleviates the working intensity and reduces the environment pollution load, and therefore, the recycling system can be widely applied to the banknote paper wastewater fiber recycling process.
Description
Technical field
The invention belongs to paper money paper and manufacture field, particularly a kind of slurry recovery process and equipment thereof.
Background technology
In banknote bill paper waste water, containing a large amount of cotton fibre, secondly also have the suspended solids such as false proof the end of a thread, titanium dioxide.In the paper money paper Wastewater Pretreatment stage, adopt at present easy filter sieve to filter, fiber recovery is in 50% left and right, reclaim slurry concentration in 10% left and right, contain the first-class impurity of anti-counterfeiting line in the recovery slurry more, such way of recycling had both increased the load of subsequent disposal operation, had increased the weight of the processing load of mud, was unfavorable for again recycled fiber.
Summary of the invention
The goal of the invention of patent of the present invention is: for the problem of above-mentioned existence, provide a kind of and can effectively improve the slurry rate of recovery, improve and receive the slurry quality, and greatly alleviate the load of subsequent disposal facility, slurry recovery process and the equipment thereof of reduce mud amount.
Technical scheme of the present invention is achieved in that
A kind of slurry recovery process is characterized in that: comprise the following steps:
A), adopt slurry slag separator, various impurity contained in paper money paper waste water are carried out to continuous screen and remove;
B), the paper money paper waste water after the slurry slag separator slagging-off is delivered to fiber recovery machine and carry out the slurry recovery;
C), the slurry after the recovery enters in the transition storage tanks be connected with the fiber recovery machine discharge end;
D), the slurry in the transition storage tanks after valve flows into Double screw pulp extruder and carries out further concentration, complete the recovery of slurry.
Slurry recovery process of the present invention, it is in described step a), and paper money paper waste water enters in corresponding slurry slag separator by a plurality of inlet pipes the processing that removes the gred, and each slurry slag separator is respectively to there being fiber recovery machine.
Slurry recovery process of the present invention, it reaches 4～6% in its concentration of slurry reclaimed through step b).
Slurry recovery process of the present invention, it is in described step b), and the secondary plain boiled water that fiber recovery machine carries out producing in the slurry removal process is sent into Sewage treatment systems by pipeline, carries out the processing of next stage or turn back to the starting stage carrying out circular treatment.
Slurry recovery process of the present invention, its impurity screened out through step b) is discharged by slag off apparatus.
Slurry recovery process of the present invention, it is in described step d), and the slurry in the transition storage tanks is controlled its amount of feed through valve and is flowed in Double screw pulp extruder.
Slurry recovery process of the present invention, it reaches 20～35% at the slurry concentration after step d) is processed.
Slurry recovery process of the present invention, it is in described step d), the secondary plain boiled water that Double screw pulp extruder carries out producing in the pulp concentration treating processes is sent into Sewage treatment systems by pipeline, carries out the processing of next stage or turn back to the starting stage carrying out circular treatment.
A kind of slurry recovery system, it is characterized in that: comprise slurry slag separator, fiber recovery machine and Double screw pulp extruder, the discharge port of described slurry slag separator is communicated with drainer, described drainer is communicated with the fiber recovery machine inlet capable by pipeline, described fiber recovery machine discharge port is provided with the transition storage tanks, and the discharge port of described transition storage tanks is communicated with the opening for feed of Double screw pulp extruder.
Slurry recovery system of the present invention, its described slurry slag separator comprises frame, is arranged on the casing on frame and is arranged on the screen frame in casing, it is outer corresponding with ash pit that the discharge end of described screen frame is placed in casing, be provided with rotating shaft at described screen frame middle part, described rotating shaft two ends are connected with screen frame by eccentric wheel respectively, and described rotating shaft one end drives and is connected with the output shaft of drive-motor by shaft coupling.
Slurry recovery system of the present invention, it is provided with three fixed muffles in described screen frame, described rotating shaft is arranged on screen frame in the fixed muffle at middle part and is fixedly connected with it, be respectively arranged with the stationary shaft be fixedly connected with it on described screen frame in the fixed muffle at two ends, described stationary shaft two ends are connected with the shock spring on being socketed in frame by mount pad.
Slurry recovery system of the present invention, it is provided with sealing gland chamber coaming plate below described screen frame, described sealing gland chamber coaming plate surrounds an open space below screen frame, described casing is interior, the screen frame below corresponds to stock tank, slurry liquid level in described stock tank is higher than the bottom face of sealing gland chamber coaming plate and lower than the bottom face of screen frame, formation sealing gland chamber in the space surrounded at described sealing gland chamber coaming plate, between described slurry liquid level and screen frame bottom face.
Slurry recovery system of the present invention, its in described casing, the discharge port correspondence of stock tank is provided with discharge mechanism, described discharge mechanism comprises blocking material plate, reclaiming plate and the regulating and controlling mechanism that is arranged on stock tank discharge port place, the upper surface of described blocking material plate is higher than the bottom face of sealing gland chamber coaming plate and lower than the bottom face of screen frame, described blocking material plate top forms grout outlet, be provided with groove on described blocking material plate, block grout outlet in the groove of described reclaiming plate lower end insertion blocking material plate, described reclaiming plate upper end is connected with regulating and controlling mechanism.
Slurry recovery system of the present invention, its described regulating and controlling mechanism comprise threaded connecting rod and be arranged on frame, with the base of threaded connecting rod thread fit, described threaded connecting rod lower end is connected with reclaiming plate, its upper end is provided with control hand wheel, rotate threaded connecting rod by control hand wheel, can make reclaiming plate move up and down.
Slurry recovery system of the present invention, its correspondence in described casing, above screen frame is provided with at least one group of wash tube, and the water spraying direction in described wash tube upper water-out hole is identical with the traffic direction of screenings on screen frame.
Slurry recovery system of the present invention, its on described frame, the feed end of screen frame is provided with feed mechanism, described feed mechanism comprises material feeding box and the outlet pipe that at least one is communicated with material feeding box, the grout outlet correspondence of described outlet pipe is arranged on screen frame feed end top, in described material feeding box lower end, is provided with the scum pipe with control valve.
Slurry recovery system of the present invention, its described fiber recovery machine comprises cell body and is arranged on the rotary screen cage in cell body by rotation axis, described rotation axis drives and is connected with motor by shaft coupling, be provided with pressure roller above described rotary screen cage, described pressure roller and rotary screen cage fit tightly, be provided with scraper in described pressure roller one side, described scraper end is attached to roller surface, be provided with sliding stock tank at described scraper with corresponding below the roller surface contact position, the discharge end of described sliding stock tank is corresponding with the discharge end of cell body.
Slurry recovery system of the present invention, it is provided with one deck spacer screen on described rotary screen cage, is provided with one deck veil on described spacer screen.
Slurry recovery system of the present invention, it is provided with the charging baffle plate in described cell body, near cell body opening for feed one side, between described charging baffle plate and rotary screen cage, forms feeding-passage, and described slurry enters from lower to upper along feeding-passage.
Slurry recovery system of the present invention, it is provided with water jet standpipe in described pressure roller rear correspondence, the spout hole of described water jet standpipe is towards the rotary screen cage surface, and described water jet standpipe one end is hinged by connecting rod and cam turntable, and described cam turntable drives and is connected with the clutch end of drive element.
Slurry recovery system of the present invention, its discharge end at described cell body is connected with the transition storage tanks, the connection corresponding to the opening for feed of Double screw pulp extruder of the discharge end of described transition storage tanks.
Slurry recovery system of the present invention, its described Double screw pulp extruder comprises housing and is arranged in housing two spiral shove bars that cooperatively interact and arrange, be provided with blade on described spiral shove bar, described two spiral shove bar one ends pass respectively housing and are connected with intermeshing driving gear set, described driving gear set drives and is connected with transmission rig, in described housing front and back end, is respectively arranged with opening for feed and discharge port.
Slurry recovery system of the present invention, its in described housing, two spiral shove bar peripheries are provided with the sieve plate fixing by the sieve plate frame, described blade periphery and the laminating of sieve plate inwall, formation shove space between described sieve plate and two spiral shove bars.
Slurry recovery system of the present invention, it is above described spiral shove bar, be provided with shower between sieve plate frame and housing, and described shower is extended to the rear end of spiral shove bar by the front end of spiral shove bar.
Slurry recovery system of the present invention, the diameter of axle of its described spiral shove bar is increased to discharge end gradually by feed end, on spiral shove bar, the pitch between adjacent blades reduces to discharge end gradually by feed end, described shove space is dwindled to discharge end gradually by feed end.
Slurry recovery system of the present invention, its on described spiral shove bar, the discharge port corresponding position is provided with at least one and catches up with the material blade.
The present invention considers existing banknote bill paper waste strength low (0.06-0.08%), the large (500-700m of flow
3/ h) characteristics such as, for the existing slurry mode of receiving, cause in paper money paper waste water fiber recovery low, reclaim slurry of poor quality, the defects such as follow-up sludge treatment load is large, in the banknote bill paper Wastewater Pretreatment stage, first adopt slurry slag separator to carry out the removal of the first-class impurity of anti-counterfeiting line, paper money paper waste water after slagging-off is delivered to fiber recovery machine and is carried out the slurry recovery, reclaim slurry concentration and reach 4-6%, the slurry reclaimed flows into Double screw pulp extruder by the transition storage tanks again and carries out further concentration, reclaim slurry concentration and can reach 25-35% after concentrated, the slurry rate of recovery of whole process can reach more than 80%.The present invention is improving the slurry rate of recovery, improves when receiving the slurry quality, has greatly alleviated the load of subsequent disposal facility, the reduce mud amount, reduce processing cost, reduces labor intensity, alleviate ambient pollution burden, this recovery system can be widely used in paper money paper waste water fiber recovery process.
the accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Fig. 2 is the front view of slurry slag separator in the present invention.
Fig. 3 is A section enlarged view in Fig. 2.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 is the front view of fiber recovery machine in the present invention.
Fig. 6 is the side-view of Fig. 5.
Fig. 7 is the structural representation that fiber recovery machine is connected with the transition storage tanks.
Fig. 8 is the front view of Double screw pulp extruder in the present invention.
Fig. 9 is the vertical view of Fig. 8.
Figure 10 is the side-view of Fig. 8.
Mark in figure: 1 is frame, 2 is casing, 3 is screen frame, 4 is ash pit, 5 is rotating shaft, 6 is drive-motor, 7 is fixed muffle, 8 is stationary shaft, 9 is mount pad, 10 is shock spring, 11 is sealing gland chamber coaming plate, 12 is stock tank, 13 is the slurry liquid level, 14 is the sealing gland chamber, 15 is wash tube, 16 is material feeding box, 17 is outlet pipe, 18 is scum pipe, 19 is blocking material plate, 20 is reclaiming plate, 21 is grout outlet, 22 is threaded connecting rod, 23 is control hand wheel, 24 is cell body, 25 is rotary screen cage, 26 is pressure roller, 27 is scraper, 28 is sliding stock tank, 29 is rotation axis, 30 is motor, 31 is the charging baffle plate, 32 is feeding-passage, 33 is water jet standpipe, 34 is the transition storage tanks, 35 is housing, 36 is spiral shove bar, 37 is sieve plate, 38 is the shove space, 39 is the sieve plate frame, 40 is shower, 41 is blade, 42 is opening for feed, 43 is discharge port, 44 for catching up with the material blade, 45 is driving gear set, 46 is transmission rig, 47 is connecting rod, 48 is cam turntable, 49 is drive element.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of slurry recovery process comprises the following steps:
A), adopt slurry slag separator, various impurity contained in paper money paper waste water are carried out to continuous screen to be removed, in described step a), paper money paper waste water enters in corresponding slurry slag separator by a plurality of inlet pipes the processing that removes the gred, and each slurry slag separator is respectively to there being fiber recovery machine.
B), the paper money paper waste water through after slurry slag separator slagging-off delivered to fiber recovery machine carry out the slurry recovery, its concentration of slurry reclaimed through step b) reaches 4～6%; The secondary plain boiled water that fiber recovery machine carries out producing in the slurry removal process is sent into Sewage treatment systems by pipeline, carries out the processing of next stage or turn back to the starting stage carrying out circular treatment, and the impurity screened out is discharged by slag off apparatus.
C), the slurry after the recovery enters in the transition storage tanks be connected with the fiber recovery machine discharge end.
D), the slurry in the transition storage tanks is after valve inflow Double screw pulp extruder carries out further concentration, complete the recovery of slurry, and the secondary plain boiled water that Double screw pulp extruder carries out producing in the pulp concentration treating processes is sent into Sewage treatment systems by pipeline, carry out the processing of next stage or turn back to the starting stage carrying out circular treatment; Wherein the slurry in the transition storage tanks is controlled in its amount of feed inflow acroll press washer through valve; Reach 20～35% at the slurry concentration after step d) is processed.
Recovery process of the present invention causes in paper money paper waste water fiber recovery low for the existing slurry mode of receiving, reclaim slurry of poor quality, the defects such as follow-up sludge treatment load is large, in the banknote bill paper Wastewater Pretreatment stage, first adopt slurry slag separator to carry out the removal of the first-class impurity of anti-counterfeiting line, paper money paper waste water after slagging-off is delivered to fiber recovery machine and is carried out the slurry recovery, reclaim slurry concentration and reach 4-6%, the slurry reclaimed flows into Double screw pulp extruder by the transition storage tanks again and carries out further concentration, reclaim slurry concentration and can reach 25-35% after concentrated, the slurry rate of recovery of whole process can reach more than 80%.
A kind of slurry recovery system, comprise slurry slag separator, fiber recovery machine and Double screw pulp extruder, the discharge port of described slurry slag separator is communicated with drainer, described drainer is communicated with the fiber recovery machine inlet capable by pipeline, described fiber recovery machine discharge port is provided with the transition storage tanks, and the discharge port of described transition storage tanks is communicated with the opening for feed of Double screw pulp extruder.
As shown in Fig. 2,3 and 4, described slurry slag separator comprises frame 1, be arranged on the casing 2 on frame 1 and be arranged on the screen frame 3 in casing 2, on described casing 2, is provided with sealing cover, prevents from spilling the equipment outside in the screening vibration processes of slurry; It is outer corresponding with ash pit 4 that the discharge end of described screen frame 3 is placed in casing 2, be provided with rotating shaft 5 at described screen frame 3 middle parts, described rotating shaft 5 two ends are connected with screen frame 3 by eccentric wheel respectively, and described rotating shaft 5 one ends drive and are connected with the output shaft of drive-motor 6 by shaft coupling; On described frame 1, the feed end of screen frame 3 is provided with feed mechanism, described feed mechanism comprises material feeding box 16 and two outlet pipes 17 that are communicated with material feeding box 16, the grout outlet correspondence of described outlet pipe 17 is arranged on screen frame 3 feed end tops, in described material feeding box 16 lower ends, is provided with the scum pipe 18 with control valve; In described casing 2, above screen frame 3, correspondence is provided with at least one group of wash tube 15, and the water spraying direction in described wash tube 15 upper water-out holes is identical with the traffic direction of screenings on screen frame 3, in the slurry screening process, prevents that slurry from stopping up, piling up.
Be provided with three fixed muffles 7 in described screen frame 3, described rotating shaft 5 is arranged on screen frame 3 in the fixed muffle 7 at middle part and is fixedly connected with it, be respectively arranged with the stationary shaft 8 be fixedly connected with it on described screen frame 3 in the fixed muffle 7 at two ends, described stationary shaft 8 two ends are connected with the shock spring 10 on being socketed in frame 1 by mount pad 9.
Wherein, be provided with sealing gland chamber coaming plate 11 below described screen frame 3, described sealing gland chamber coaming plate 11 surrounds an open space below screen frame 3, described casing 2 is interior, screen frame 3 belows correspond to stock tank 12, slurry liquid level 13 in described stock tank 12 is higher than the bottom face of sealing gland chamber coaming plate 11 and lower than the bottom face of screen frame 3, formation sealing gland chamber 14 in the space surrounded at described sealing gland chamber coaming plate 11, between described slurry liquid level 13 and screen frame 3 bottom faces.
As shown in Figure 3, in described casing 2, the discharge port correspondence of stock tank 12 is provided with discharge mechanism, described discharge mechanism comprises blocking material plate 19, reclaiming plate 20 and the regulating and controlling mechanism that is arranged on stock tank 12 discharge port places, the upper surface of described blocking material plate 19 is higher than the bottom face of sealing gland chamber coaming plate 11 and lower than the bottom face of screen frame 3, described blocking material plate 19 tops form grout outlet 21, be provided with groove on described blocking material plate 19, block grout outlet 21 in the groove of described reclaiming plate 20 lower ends insertion blocking material plates 19, described reclaiming plate 20 upper ends are connected with regulating and controlling mechanism; Described regulating and controlling mechanism comprise threaded connecting rod 22 and be arranged on frame 1, with the base of threaded connecting rod 22 thread fit, described threaded connecting rod 22 lower ends are connected with reclaiming plate 20, its upper end is provided with control hand wheel 23, by the threaded connecting rod 22 of control hand wheel 23 rotation, can make reclaiming plate 20 move up and down.
The principle of work of described slurry slag separator: as shown in Figure 2, starch from the outlet pipe of right side material feeding box and enter in the screen frame of slurry slag separator, drive-motor drives with its output shaft and drives the rotating shaft be connected to carry out high-speed motion, now the eccentric wheel at rotating shaft two ends produces very large centrifugal force, make the outstanding screen frame be sitting on spring do the vibration of ellipticorbit, generation is shaken frequently, double amplitude: 10～12mm.The screen frame lower surface is drilled with the sieve aperture of Φ 3mm left and right, to adapt to the screening requirement of slurry.Be provided with the sealing gland chamber in the screen frame bottom, regulate the interior slurry liquid of stock tank position after the drive-motor entry into service to more than bottom, sealing gland chamber, when screen frame is made up-down vibration, be sealed in the indoor air of sealing gland and can produce pressure pulsation, slurry when screen frame moves downward in screen frame immerses stock tank by sieve aperture, do not make like this clogging of screen bottom screen frame with regard to making screen frame carry out continuous self-stip, both kept screen frame clean unobstructed, improved again screening quality and throughput.
Slurry after screening flows out through the lower right corner, stock tank slave unit below, and the tailings after screening is finally discharged by the screen frame slag output end in constantly the promoting forward of screen frame, enters in ash pit, then sees processing off by receiving the slag dolly.
As shown in Fig. 5,6 and 7, described fiber recovery machine comprises cell body 24 and is arranged on the rotary screen cage 25 in cell body 24 by rotation axis 29, discharge end at described cell body 24 is connected with transition storage tanks 34, the connection corresponding to the opening for feed of Double screw pulp extruder of the discharge end of described transition storage tanks 34; Described rotation axis 29 drives and is connected with motor 30 by shaft coupling, be provided with pressure roller 26 above described rotary screen cage 25, described pressure roller 26 fits tightly with rotary screen cage 25, be provided with scraper 27 in described pressure roller 26 1 sides, described scraper 27 ends are attached to pressure roller 26 surfaces, be provided with sliding stock tank 28 at described scraper 27 with corresponding below pressure roller 26 Surface Contact places, the discharge end of described sliding stock tank 28 is corresponding with the discharge end of cell body 24.
Wherein, on described rotary screen cage 25, be provided with one deck spacer screen, be provided with one deck veil on described spacer screen; Be provided with charging baffle plate 31 in described cell body 24, near cell body 24 opening for feed one sides, formation feeding-passage 32 between described charging baffle plate 31 and rotary screen cage 25, described slurry enters from lower to upper along feeding-passage 32; Be provided with water jet standpipe 33 in described pressure roller 26 rear correspondences, the spout hole of described water jet standpipe 33 is towards rotary screen cage 25 surfaces, described water jet standpipe 33 1 ends are hinged by connecting rod 47 and cam turntable 48, described cam turntable 48 drives and is connected with drive element 49, portable water jet standpipe cleans for rotary screen cage, reduces because concentration is low, the high paste net rate of bringing of mesh.
Wherein, described pressure roller is arranged on lifting device, described lifting device is for adjusting the pressure size of contact surface between pressure roller and rotary screen cage, described scraper is arranged on lifting device by angle adjusting mechanism, and described angle adjusting mechanism rotates the relative angle of tangential direction for adjusting scraper and pressure roller.
The principle of work of described fiber recovery machine: as shown in Figure 5, there is liquid level difference inside and outside rotary screen cage, starching the feeding-passage formed enter from lower to upper between charging baffle plate and rotary screen cage, rotation along with rotary screen cage, plain boiled water is discharged after entering cylinder mould through the mesh of rotary screen cage, layer of fibers is attached to the cylinder mould surface, after producing liquid level with rotary screen cage, be transferred on pressure roller, and scrape through sliding stock tank and enter the slurry receiving tank by the scraper place, by discharging device, the slurry after processing is put into to the transition storage tanks.
Lower owing to starching concentration, and concentration is unstable, the motor in this equipment has adopted the cycloidal-pin wheel reducing motor, with the siemens frequency converter control system, controls linear speed, regulate best linear speed (can regulate) between 4r/min～10r/min, make it more adapt to the needs of different slurries, concentration.
As shown in Fig. 8,9 and 10, described Double screw pulp extruder comprises housing 35 and is arranged in housing 35 two spiral shove bars 36 that cooperatively interact and arrange, be provided with blade 41 on described spiral shove bar 36, described two spiral shove bar 36 1 ends pass respectively housing 35 and are connected with intermeshing driving gear set 45, described driving gear set 45 drives and is connected with transmission rig 46, in described housing 35 front and back ends, is respectively arranged with opening for feed 42 and discharge port 43.
In described housing 35, two spiral shove bar 36 peripheries are provided with the sieve plate fixing by sieve plate frame 39 37, described blade 41 peripheries and sieve plate 37 inwalls laminatings, formation shove space 38 between described sieve plate 37 and two spiral shove bars 36; Above described spiral shove bar 36, between sieve plate frame 39 and housing 35, be provided with shower 40, described shower 40 is extended to the rear end of spiral shove bar 36 by the front end of spiral shove bar 36, and shower is carried out and sprayed water with high pressure, and has reduced the obstruction of sieve plate eyelet.
Wherein, the diameter of axle of described spiral shove bar 36 is increased to discharge end gradually by feed end, and the pitch on spiral shove bar 36, between adjacent blades 41 is reduced to discharge end gradually by feed end, and described shove space 38 is dwindled to discharge end gradually by feed end; On described spiral shove bar 36, discharge port 43 corresponding positions be provided with at least one catch up with the material blade 44.Tradition type discharge port top is closed, after the extruding concentrate, the slurry of (after extruding part water) is piled up (forming the material cake) at the as easy as rolling off a log formation siccative of discharging port, impact is produced, damage equipment, increased catch up with the material blade after, the described material blade of catching up with rotates with spiral shove bar, after slurry arrives the discharge port place, catch up with the material blade to stir slurry, just being not easy to form siccative piles up, reduced the discharge blockage phenomenon, this catches up with material mechanism need not separately add power, and repair and maintenance is convenient, can solve the discharging obstructing problem again.
The principle of work of described Double screw pulp extruder: top, the left side opening for feed of slurry slave unit enters in the shove space of Double screw pulp extruder, enter the interaction of the slurry screw-blade on twin shaft in machine, operation forward under rotation, wherein, the diameter of axle of described spiral shove bar is increased to discharge end gradually by feed end, on spiral shove bar, pitch between adjacent blades is reduced to discharge end gradually by feed end, be that described shove space is dwindled to discharge end gradually by feed end, thereby form huge space squeeze, make slurry under external force, moisture content is extruded outflow by the eyelet place on the stainless steel sieve plate of spiral shove bar periphery, form the mechanical type separating and dehydrating, and after being extruded concentrate, the slurry of (after extruding part water) is discharged at the discharge port place.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of invention.
Claims (26)
1. a slurry recovery process is characterized in that: comprise the following steps:
A), adopt slurry slag separator, various impurity contained in paper money paper waste water are carried out to continuous screen and remove;
B), the paper money paper waste water after the slurry slag separator slagging-off is delivered to fiber recovery machine and carry out the slurry recovery;
C), the slurry after the recovery enters in the transition storage tanks be connected with the fiber recovery machine discharge end;
D), the slurry in the transition storage tanks after valve flows into Double screw pulp extruder and carries out further concentration, complete the recovery of slurry.
2. slurry recovery process according to claim 1, it is characterized in that: in described step a), paper money paper waste water enters in corresponding slurry slag separator by a plurality of inlet pipes the processing that removes the gred, and each slurry slag separator is respectively to there being fiber recovery machine.
3. slurry recovery process according to claim 1, is characterized in that: in its concentration of slurry reclaimed through step b), reach 4～6%.
4. slurry recovery process according to claim 3, it is characterized in that: in described step b), the secondary plain boiled water that fiber recovery machine carries out producing in the slurry removal process is sent into Sewage treatment systems by pipeline, carries out the processing of next stage or turn back to the starting stage carrying out circular treatment.
5. slurry recovery process according to claim 4 is characterized in that: the impurity screened out through step b) is discharged by slag off apparatus.
6. slurry recovery process according to claim 1 is characterized in that: in described step d), the slurry in the transition storage tanks is controlled its amount of feed through valve and is flowed in Double screw pulp extruder.
7. slurry recovery process according to claim 1, is characterized in that: at the slurry concentration after step d) is processed, reach 20～35%.
8. slurry recovery process according to claim 7, it is characterized in that: in described step d), the secondary plain boiled water that Double screw pulp extruder carries out producing in the pulp concentration treating processes is sent into Sewage treatment systems by pipeline, carries out the processing of next stage or turn back to the starting stage carrying out circular treatment.
9. a slurry recovery system, it is characterized in that: comprise slurry slag separator, fiber recovery machine and Double screw pulp extruder, the discharge port of described slurry slag separator is communicated with drainer, described drainer is communicated with the fiber recovery machine inlet capable by pipeline, described fiber recovery machine discharge port is provided with the transition storage tanks, and the discharge port of described transition storage tanks is communicated with the opening for feed of Double screw pulp extruder.
10. slurry recovery system according to claim 9, it is characterized in that: described slurry slag separator comprises frame (1), is arranged on the casing (2) on frame (1) and is arranged on the screen frame (3) in casing (2), it is outer corresponding with ash pit (4) that the discharge end of described screen frame (3) is placed in casing (2), be provided with rotating shaft (5) at described screen frame (3) middle part, described rotating shaft (5) two ends are connected with screen frame (3) by eccentric wheel respectively, and described rotating shaft (5) one ends drive and are connected with the output shaft of drive-motor (6) by shaft coupling.
11. slurry recovery system according to claim 10, it is characterized in that: be provided with three fixed muffles (7) in described screen frame (3), described rotating shaft (5) is arranged at screen frame (3) and goes up in the fixed muffle (7) at middle part and be fixedly connected with it, be respectively arranged with the stationary shaft (8) be fixedly connected with it in the fixed muffle (7) at the upper two ends of described screen frame (3), described stationary shaft (8) two ends are connected with the shock spring (10) on being socketed in frame (1) by mount pad (9).
12. slurry recovery system according to claim 11, it is characterized in that: in described screen frame (3) below, be provided with sealing gland chamber coaming plate (11), described sealing gland chamber coaming plate (11) surrounds an open space in screen frame (3) below, in described casing (2), screen frame (3) below corresponds to stock tank (12), slurry liquid level (13) in described stock tank (12) is higher than the bottom face of sealing gland chamber coaming plate (11) and lower than the bottom face of screen frame (3), in the space surrounded at described sealing gland chamber coaming plate (11), form sealing gland chamber (14) between described slurry liquid level (13) and screen frame (3) bottom face.
13. slurry recovery system according to claim 12, it is characterized in that: in described casing (2), the discharge port correspondence of stock tank (12) is provided with discharge mechanism, described discharge mechanism comprises the blocking material plate (19) that is arranged on stock tank (12) discharge port place, reclaiming plate (20) and regulating and controlling mechanism, the upper surface of described blocking material plate (19) is higher than the bottom face of sealing gland chamber coaming plate (11) and lower than the bottom face of screen frame (3), described blocking material plate (19) top forms grout outlet (21), be provided with groove on described blocking material plate (19), block grout outlet (21) in the groove of described reclaiming plate (20) lower end insertion blocking material plate (19), described reclaiming plate (20) upper end is connected with regulating and controlling mechanism.
14. slurry recovery system according to claim 13, it is characterized in that: described regulating and controlling mechanism comprise threaded connecting rod (22) and be arranged on frame (1) upper, with the base of threaded connecting rod (22) thread fit, described threaded connecting rod (22) lower end is connected with reclaiming plate (20), its upper end is provided with control hand wheel (23), rotate threaded connecting rod (22) by control hand wheel (23), can make reclaiming plate (20) move up and down.
15. slurry recovery system according to claim 14, it is characterized in that: in described casing (2), screen frame (3) top correspondence is provided with at least one group of wash tube (15), the water spraying direction in described wash tube (15) upper water-out hole is identical with the traffic direction that screen frame (3) is gone up screenings.
16. slurry recovery system according to claim 15, it is characterized in that: feed end upper in described frame (1), screen frame (3) is provided with feed mechanism, described feed mechanism comprises material feeding box (16) and the outlet pipe (17) that at least one is communicated with material feeding box (16), the grout outlet correspondence of described outlet pipe (17) is arranged on screen frame (3) feed end top, in described material feeding box (16) lower end, is provided with the scum pipe (18) with control valve.
17. according to the described slurry recovery system of any one in claim 9 to 16, it is characterized in that: described fiber recovery machine comprises cell body (24) and is arranged on the rotary screen cage (25) in cell body (24) by rotation axis (29), described rotation axis (29) drives and is connected with motor (30) by shaft coupling, be provided with pressure roller (26) in described rotary screen cage (25) top, described pressure roller (26) fits tightly with rotary screen cage (25), be provided with scraper (27) in described pressure roller (26) one sides, described scraper (27) end is attached to pressure roller (26) surface, at described scraper (27) be provided with sliding stock tank (28) corresponding to the below at pressure roller (26) Surface Contact place, the discharge end of described sliding stock tank (28) is corresponding with the discharge end of cell body (24).
18. slurry recovery system according to claim 17 is characterized in that: be provided with one deck spacer screen on described rotary screen cage (25), be provided with one deck veil on described spacer screen.
19. slurry recovery system according to claim 18, it is characterized in that: in described cell body (24), near cell body (24) opening for feed one side, be provided with charging baffle plate (31), form feeding-passage (32) between described charging baffle plate (31) and rotary screen cage (25), described slurry enters from lower to upper along feeding-passage (32).
20. slurry recovery system according to claim 19, it is characterized in that: at described pressure roller (26) rear, correspondence is provided with water jet standpipe (33), the spout hole of described water jet standpipe (33) is towards rotary screen cage (25) surface, described water jet standpipe (33) one ends are hinged by connecting rod (47) and cam turntable (48), and described cam turntable (48) drives and is connected with the clutch end of drive element (49).
21. slurry recovery system according to claim 19 is characterized in that: the discharge end at described cell body (24) is connected with transition storage tanks (34), the discharge end of described transition storage tanks (34) and the corresponding connection of the opening for feed of Double screw pulp extruder.
22. slurry recovery system according to claim 21, it is characterized in that: described Double screw pulp extruder comprises housing (35) and is arranged in housing (35) the two spiral shove bars (36) that cooperatively interact and arrange, be provided with blade (41) on described spiral shove bar (36), described two spiral shove bar (36) one ends pass respectively housing (35) and are connected with intermeshing driving gear set (45), described driving gear set (45) drives and is connected with transmission rig (46), be respectively arranged with opening for feed (42) and discharge port (43) in described housing (35) front and back end.
23. slurry recovery system according to claim 22, it is characterized in that: in described housing (35), two spiral shove bars (36) periphery is provided with the sieve plate (37) fixing by sieve plate frame (39), described blade (41) periphery and the laminating of sieve plate (37) inwall, form shove space (38) between described sieve plate (37) and two spiral shove bars (36).
24. slurry recovery system according to claim 23, it is characterized in that: be provided with shower (40) between described spiral shove bar (36) top, sieve plate frame (39) and housing (35), described shower (40) is extended to the rear end of spiral shove bar (36) by the front end of spiral shove bar (36).
25. slurry recovery system according to claim 24, it is characterized in that: the diameter of axle of described spiral shove bar (36) is increased to discharge end gradually by feed end, pitch on spiral shove bar (36), between adjacent blades (41) is reduced to discharge end gradually by feed end, and described shove space (38) is dwindled to discharge end gradually by feed end.
26. slurry recovery system according to claim 25 is characterized in that:, discharge port (43) corresponding position upper at described spiral shove bar (36) is provided with at least one and catches up with material blade (44).
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| CN103130352B CN103130352B (en) | 2014-06-11 |
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|---|---|
| CN103130352B (en) | 2014-06-11 |
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Address after: 611130 No. 189, Golden Road, Wenjiang District, Sichuan, Chengdu Patentee after: CHENGDU BANKNOTE PRINTING Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 611130 No. 189, Golden Road, Wenjiang District, Sichuan, Chengdu Patentee before: CHENGDU BANKNOTE PRINTING Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |