CN1970160A - Filtering device - Google Patents
Filtering device Download PDFInfo
- Publication number
- CN1970160A CN1970160A CNA2006101603232A CN200610160323A CN1970160A CN 1970160 A CN1970160 A CN 1970160A CN A2006101603232 A CNA2006101603232 A CN A2006101603232A CN 200610160323 A CN200610160323 A CN 200610160323A CN 1970160 A CN1970160 A CN 1970160A
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- Prior art keywords
- upwelling
- suction tube
- screening plant
- mixture
- screen cloth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
Provided is a filtering device, which could not reduce the recovery of the heavy proportion object, prevent mid light proportion object from mixing with heavy proportion object. Filtering device has upwelling generating tube (8) making upwelling generate inside the flume (2), and suction catheter (9) sucking mid light proportion object (B) floating undersurface in virtue of upwelling to upper, so the mid light proportion objects (B) of low deposition speed are floated undersurface by the upwelling, and are sucked and dischared to the suction catheter (9), which prevents mixing and depositing into the heavy proportion object (A) of the bottom of the flume (2), and even the heavy proportion objects (A) entering into the suction catheter (9) owing to upwelling, it could not be sucked to the upper by the suction catheter (9) but deposited to outside, without reducing the recovery of the heavy proportion object (A), and preventing mid light proportion object (B) from mixing with heavy proportion object (A).
Description
Technical field
The present invention relates to a kind of screening plant that in tank, utilizes difference in specific gravity to screen the wet type of mixture.
Background technology
As the screening plant of the mixture that has utilized difference in specific gravity, the screening plant of the wet type of floating, avaling by proportion official post mixture in tank is used in the various fields.
This wet type screening plant can be used in following field, for example when obtaining the wood chip of paper making raw material, from mixing grittiness, in the mixture of the anharmonic ratio weight of iron plate etc., this anharmonic ratio weight is separated as foreign matter, for also can reclaim effectively proportion than 1 big in gently than the wood chip of weight, salvage conveyer belt (conveyor) and in tank, be provided with, water from the behind portion attraction tank of this conveyer belt, and supply to the bottom of the vertical tube of the tank that deposits the anharmonic ratio weight, make in the vertical tube and produce upwelling, by upwelling will be deposited in the vertical tube in gently roll back than the wood chip of weight, it is picked up (with reference to patent documentation 1) with conveyer belt.
[patent documentation 1] spy opens clear 62-79858 communique
In addition, in the process field of discarded object, from the concrete (concrete) as construction waste, recovery proportion is that the aggregate of the anharmonic ratio weight more than 2.5 utilizes again.In the aggregate that this is recovered, mix plastic sheet is arranged, wood chip etc.In the plastic sheet in this mixture, mix acrylic resin is arranged (polypropylene resin) and polyvinyl resin (polyethylene resin) geometric ratio anharmonic ratio 1 little gently than weight, and vinyl chloride resin (vinyl chloride resin) geometric ratio anharmonic ratio 1 big in gently than weight.In addition, wet wood chip proportion is bigger than 1, gently mixes wherein than weight in its conduct.If use the wet type screening plant, screen aggregate in the light mixture from mixing to have this than weight, then have avale in gently sneak into aggregate than weight, make the problem of the screening deterioration in accuracy of aggregate.
In addition,, reclaim the plumbous shot that is scattered on the soil property place at trap field, from soil and the mixture that reclaims in the lump of shot, with shot as the anharmonic ratio weight, with soil as in gently than weight, screen shot accurately.
At the process field of above-mentioned discarded object and trap field etc., when adopting the wet type screening plant from mixture screening anharmonic ratio weight, gently sneak in the anharmonic ratio weight in big than 1 in order to prevent proportion than weight, as patent documentation 1 record, consider that the method that adopts is, gently push back in avaling with ascending current than weight, and pick up by conveyer belt, but, owing to also having, the anharmonic ratio weight that pushes back with ascending current is transmitted the possibility that band gets, be with the anharmonic ratio weight that gets not return in the tank in case be transmitted, just have the problem of the rate of recovery reduction of anharmonic ratio weight.
Therefore, problem of the present invention is, the rate of recovery of anharmonic ratio weight is reduced, and gently sneaks into the anharmonic ratio weight than weight in preventing.
Summary of the invention
In order to solve above-mentioned problem, the present invention attracts to rely on gently to separate than weight during upwelling floats by suction tube and removes, and utilizes deadweight that the anharmonic ratio weight that enters into suction tube is avaled simultaneously and turns back in the tank.
In view of the above, because the anharmonic ratio weight is not attracted but turns back in the tank, so the anharmonic ratio weight that will avale in this tank got final product as reclaiming in the past.
Formation as this invention is a kind of screening plant, the mixture that will screen is dropped in the tank, utilize its difference in specific gravity to screen anharmonic ratio weight in the described mixture of the bottom land that avales, wherein, in described tank, be provided with make the luminous upwelling generator tube of upwelling and be floated on because of this upwelling in the water suspending object from downwardly facing opening be attracted to the top suction tube, set the attraction of this suction tube, even it is avaled by deadweight so that described anharmonic ratio weight enters.
The attraction of this suction tube, because can be by the flow area area of suction tube, attract the decisions such as ability of flow velocity, suction pump, so will be by experiment, actual job etc. suitably sets them, even so that the anharmonic ratio weight enters in the suction tube, it avaled by deadweight.
For example, if make the flow velocity of attraction velocity ratio upwelling of suction tube slow, then the mixture that comprises the anharmonic ratio weight by upwelling rises, even this mixture is sucked into suction tube, because the flow velocity in the suction tube is slow, so within the mixture, the below of anharmonic ratio weight suction tube because deadweight is avaled.That is,,, but rely on the avale below of suction tube of deadweight, can carry out high-precision screening so the anharmonic ratio weight of being kicked up by powerful upwelling can be by weak attraction stream inspiration because attract the flow velocity of velocity ratio upwelling slow.
As allowing the flow velocity method slowly that attracts the velocity ratio upwelling, for example can consider, make the aperture area of described upwelling generator tube, littler etc. than the flow area area of the intake section of the suction tube that attracts to described top from the opening of described suction tube.Allow aperture area (flow area area) difference if so, then usually because flow out from the upwelling of the opening advantage of upwelling generator tube, so have contain the anharmonic ratio weight mixture therewith upwelling rise together and enter situation in the suction tube, but attract in the way at this, because attract the velocity ratio upflow velocity slow, so the anharmonic ratio weight can further not be sucked in the suction tube, but with the avale below of suction tube of deadweight.This flow area area difference is effective during the flow that flows same in upwelling generator tube and suction tube.
According to the such experiment etc. of successfully avaling with deadweight such as the anharmonic ratio weight that enters this intake section, consider flow velocity etc., thereby suitably set the length (with reference to the L of Fig. 2) of the intake section of suction tube.
If the opening of upwelling generator tube is the position that upwelling is produced, then any one in the tank can, but to set aptly by upwelling and make the position of being floated smoothly according to experiment, actual job etc. by the mixture of input tank.
The position of the opening of upwelling generator tube and the opening of suction tube relation according to settings such as experiment, actual jobs, makes two openings have suitable distance, angle and relative, is floated on suspending object in the water to allow to successfully to attract because of upwelling.In this case, the position relation that is preferably formed the whole of the mixture of removing the anharmonic ratio weight and has only the part of anharmonic ratio weight to be attracted.
In this structure, can be along the flow direction of described mixture, for example with vertical demarcation strip being separated into ordered series of numbers in the described tank, these respectively listing of being separated described suction tube is set respectively.
If so, because rectified, gently float in can making than weight is stable by the demarcation strip upwelling.
At this moment, with sieve the mixture of putting in the described tank is carried out size classes in advance, divided the mixture of size to put into each good row of described separation respectively these, can improve thus with regulation proportion is the screening precision of ramification point.That is, if mixture is measure-alike, then the buoyancy that bears by upwelling of this mixture about equally the poor of power because the deadweight that difference in specific gravity causes is avaled, in gently than the easy rising of weight, the anharmonic ratio weight will avale easily.
Also have, the buoyancy that the object that size is more little is subjected to is more little, but because the power of avaling brought of deadweight reduces greatly, so when not carrying out size classes, probably meeting and be attracted together than the big but little mixture of proportion of its size and manage attraction and to be discharged to the outside of undersized anharmonic ratio weight.
Therefore, if carry out size classes, can change the intensity of upwelling of each row, only according to the difference of proportion make each size the anharmonic ratio weight and in gently be separated to avale side and uplifted side than weight, with the influence that the difference that reduces above-mentioned size causes, improve the screening precision.
Also have, upwelling can be produced by a upwelling generator tube, also can the upwelling generator tube all be set at each row of described separation, perhaps whenever listing more than 2 the upwelling generator tube is set.The latter's situation, the opening of a upwelling generator tube will face the row more than 2.
Suction tube can be provided with a plurality of towards the flow direction of described mixture in turn.If so, the attraction of suction tube is towards the flow direction of mixture and improve (reinforcement) interimly, promptly, make the attraction upstream side height more mobile of the suction tube in downstream than mixture, thus, can change from each suction tube attract (seizures) to the proportion of object, can screen the different material of seizure proportion.The number of suction tube is suitably set according to the number of the object of the difference in specific gravity of catching.
At this moment, at described each suction tube the upwelling generator tube is set respectively, its setting means is the flow direction towards mixture, and the upwelling that each upwelling generator tube is caused is strengthened (upflow velocity is accelerated in turn) in turn, can float smoothly and attracts according to the proportion of catching thing thus.
For example, when being provided with 2 upwelling generator tubes, by the suction tube of front side (mixture flow upstream side) attract proportion than in the 1 big plastics etc. gently than weight, then, attract not attracted to the smaller anharmonic ratio weight of proportion of aggregate within the anharmonic ratio weight in the suction tube of front side etc. by the suction tube of rear side, can filter out following 3 classes thus: the very large anharmonic ratio weight of this proportion of metal of the iron that is attracted by the suction tube of front and back, copper, lead etc. not; The smaller anharmonic ratio weight of proportion of the aggregate that is attracted by the suction tube of rear side etc.; By the suction tube of front side attract in gently than weight.
In addition,, also can attract the suspending object that do not attracted, therefore can improve described screening precision by the suction tube of front side by the suction tube of rear side even do not change the attraction of each suction tube.
In addition,, mixture is floated and sent into each suction tube, can further improve the screening precision if the upwelling generator tube is set respectively with respect to described each suction tube.
Under this situation, the position relation of the opening of above-mentioned stream generator tube and the opening of suction tube, experiment, actual job etc., two openings are set at the distance that keeps suitable, angle and relatively, so that do not attract the object of required proportion as far as possible, can successfully attract to be floated on the suspending object of the required proportion in the water because of upwelling.
(not only comprise ellipse, also comprise rectangle if the opening that makes described upwelling generator tube and suction tube becomes the long hole shape that is long in the horizontal for the flow direction of described mixture respectively.With reference to Figure 14), then upwelling narrows down at the tank insied width, and clear and definite mobile generation is being arranged, and because attract also narrowed width on the flow direction of this mixture of stream, so that this sucking action also becomes is certain.
The length of this slotted hole is done suitably according to the range of relative horizontal length of the flow direction of mixture and tank and to be set.In addition, the width of slotted hole is also done suitably on the formation degree of considering upwelling, attraction degree basis and is set.
In these structures, between the described upwelling generator tube and suction tube in described tank, lower end side is set as outlet side and open inclination screen cloth (screen) towards the flow direction of described mixture, and make it downward-sloping, upper end side at this inclination screen cloth drops into described mixture, and described anharmonic ratio weight is avaled at the bottom of described tank from the outlet side of described lower end side.
If so, then online at inclined screen because the mixture that avales with group's state is subjected to confusing of upwelling and floats, thus in gently successfully separated than weight, the anharmonic ratio weight directly drops on this screen cloth and at the bottom of the screw clamp that avales simultaneously.That is, gently than becoming smoothly weight and separating of anharmonic ratio weight, and because the mixture that avales with this group's state can be run into upwelling, so can reduce the amount (water yield) (mixture is floated) of this upwelling.
At this moment, if below this inclination screen cloth, the opening of upwelling generator tube is located at the appointed positions of its incline direction, for example discharge distolateral, then only upwelling takes place in the zone of the part of tank in meeting, thereby gently be floated on the underwater in can making, can reduce the water yield of upwelling than weight.Under this situation, also can make upwelling generator tube opening in other positions below the inclination screen cloth.
Give the mechanism of described inclination screen cloth vibration by setting, can utilize upwelling positively to make to avale on screen cloth in gently float than weight, and optionally be attracted to suction tube, further improve the screening precision.In addition, the mesh that also can prevent screen cloth stops up.
By being provided with by the portion that retains of the mixture of the upper end side of the described inclination screen cloth of input, this retains between the portion in arrival, because under method of double differences effect and make the anharmonic ratio weight be distributed to downside, in gently be distributed to after the upside than weight, mixture can move to the upper end side of inclination screen cloth, so can by upwelling make be distributed in upside in gently successfully float than weight, be attracted pipe easily and attract.
At this moment, if the portion of retaining is linked to the inclination screen cloth,, therefore can promote to arrive this mixture that retains portion under this vibration effect then along with the vibration portion of retaining of this inclination screen cloth is also vibrated, make described anharmonic ratio weight be distributed to downside, in gently be distributed to the effect of upside than weight.
The present invention as above the bottom of the screw clamp that avales because the anharmonic ratio weight is not attracted is so the rate of recovery of anharmonic ratio weight improves.
Description of drawings
Fig. 1 is the mixture of the screening plant of expression input the 1st embodiment is carried out the operation of classification from construction waste a process chart.
Fig. 2 is the profilograph of the screening plant of expression the 1st embodiment.
Fig. 3 is the profile along the III-III line of Fig. 2.
Fig. 4 is the profilograph of expression the 2nd embodiment.
Fig. 5 is the profilograph of expression the 3rd embodiment.
Fig. 6 is the profilograph of expression the 4th embodiment.
Fig. 7 is the profilograph of expression the 5th embodiment.
Fig. 8 is the profilograph of expression the 6th embodiment.
Fig. 9 is the vertical view of Fig. 8.
Figure 10 is that the part of first variation of expression the 6th embodiment is omitted profilograph.
Figure 11 is that the part of second variation of expression the 6th embodiment is omitted profilograph.
Figure 12 is the profilograph of expression the 7th embodiment.
Figure 13 is the profilograph of expression the 8th embodiment.
Figure 14 is the part stereogram of an example of suction tube.
Among the figure: A, A ', A " the anharmonic ratio weight; Among the B gently than weight; C is gently than weight; The D mixture; 1 wet type screening plant; 2 tanks; The 2a supply side; The 2b outlet side; 3 baskets (basket); The 3a supply side; The 3b outlet side; 4 demarcation strips; 5 chute feeders (shoot); 6 inclination screen clothes; 7 vibration generating mechanisms; 8,8
1, 8
2The upwelling generator tube; The opening of 8a upwelling generator tube; 9,9
1, 9
2Suction tube; The opening of 9a suction tube; 10 conveyer belts (conveyor); 11,11a discharges screw rod (screw); The 11b outlet; Pump; 13 filters (filter); 14 retain portion; 15 discharge screw rod; The 15a opening; The 15b outlet; 16 dykes and dams; 17 flexible cover layers (flexible cover); 18 nozzles; 21 pulverizers; 22 sieves; 23 magnetic separators; 24 graters; 25 sieves.
The specific embodiment
Below, according to drawing explanation embodiments of the present invention.Fig. 1 to Fig. 3 represents the 1st embodiment.This screening plant 1 is used for the reclaimer of the aggregate that concrete comprised of construction waste, is used for removing the wood chip and the plastic sheet that mix in aggregate.
As shown in Figure 1, described concrete uses pulverizer 21 to pulverize, and removes large-scale foreign matter by the hand screening and puts into sieve 22 afterwards, removes and is of a size of the following small foreign matter of degree 2mm, is put back to pulverizer 21 above the bulk crushed material of 40mm simultaneously and pulverizes.Be considered to the crushed material of size below 40mm, remove after the ferrous metal, grind, remove cement mortar (cement mortar) composition that is attached to aggregate, sieve into 5 kinds of sizes with sieve 25 with grater 24 with magnetic separator 23.
In this embodiment, be screened into the size that is lower than 7mm, 7~13mm, 13~20mm, 20~28mm, 28~40mm, and it is dropped into wet type screening plant 1.Being dropped into the handled thing of this wet type screening plant 1, is the mixture D that has wood chip and plastic sheet to sneak in aggregate.
As shown in Figures 2 and 3, described wet type screening plant 1 is as follows: in the wide tank of overlooking rectangle 2 of horizontal stroke, can be lifted with up or down horizontal wide above opening overlook rectangle basket 3, be cut into 5 row with vertical demarcation strip 4 along its width (left and right directions of Fig. 3) in this basket 3, the mixture D of being sieved into 5 class sizes by described sieve 25 drops into these each row from chute feeder 5.
Also have, the spaced-apart locations of each demarcation strip 4 is variable, according to the treating capacity of each size of mixture D, can adjust the width of each row.
In addition, be provided with inclination screen cloth 6 on the end of basket 3, its supply side 3a that is dropped into from mixture D slopes downwardly into another distolateral outlet side 3b, should apply vibration by inclination screen cloth 6 by 7 pairs of basket 3 usefulness vibration generating mechanisms.This vibration generating mechanism 7, by vibration transmission plate 7a move in a circle (with reference to Fig. 2 arrow) changes lap position with basket 3, thereby make basket about in the of 3 and apply vibration.
Respectively listing of the basket of separating by described demarcation strip 43, be provided with in the inclination way of inclination screen cloth 6 from above make the upwelling generator tube 8 of the upward opening that upwelling takes place and attract to be floated on the suction tube 9 under shed of suspending object in the water in the water by upwelling.Upwelling generator tube 8 is relative at incline direction with suction tube 9, and the distance between both opening 8a, 9a is configured to the distance that upwelling can be not weak.In addition, open in the lower end side of the outlet side 3b of basket 3 inclination screen cloth 6, near the water surface in its outside, be provided with the conveyer belt 10 of the suspending object on the pumped surface, the while is provided with the discharge screw rod 11 of discharging the thing that avales at the end of the tank 2 of outlet side 3b side.
Drop into from described chute feeder 5 among each mixture D that is listed as of basket 3, the anharmonic ratio weight A of aggregate etc. promptly avales at inclination screen cloth 6, make on the inclination screen cloth 6 to outlet side 3b side descend move after, avale at the end of screw clamp 2 from the outlet side 3b of the opening of lower end side, reclaim by discharge screw rod 11 screenings of rotation.The anharmonic ratio weight A of a part is floated in the water by the upwelling from upwelling generator tube 8 in decline is moved on inclination screen cloth 6, but does not take the upwelling towards the oblique upper of suction tube 9, and on the inclination screen cloth 6 that avales.
In addition, be attracted pipe 9 attracts even anharmonic ratio weight A takes current, because suction tube 9 tilts upward under shed and from this opening 9a, so the power of being brought by deadweight of avaling surpasses the buoyancy (attraction) that causes because of attracting, on the inclination screen cloth 6 of its below of still can avaling once again.
Also have, suction tube 9 angle of inclination upward can be regulated, and can adjust the border of the proportion that could be attracted pipe 9 attractions.Suction tube 9 inclined at inclination angles upward must be slow more, and suction tube 9 can attract greatly than weight more.
In addition, the flow velocity in the flow velocity of upwelling and the suction tube 9 is set greatly more when the size of mixture is big more.
In addition, form (with reference to Fig. 5) by a pump, or form by separately pump respectively from the attraction stream of the upwelling of upwelling generator tube 8 and suction tube 9.At this moment, the attraction of this suction tube 9 (attraction flow velocity) is even enter in the suction tube 9 also the mode that can avale by deadweight with anharmonic ratio weight A, set the flow area area of suction tube 9, the ability of pump etc. aptly, and cooperate the flow area area set upwelling generator tube 8 aptly etc. with it.
Proportion gently deposits lentamente than weight B and descends in big than 1 and moves on the inclination screen cloth 6 among described wood chip that mixture D comprised that is dropped into and the plastic sheet, in this way,, be attracted pipe 9 attractions and be disposed to the outside because of the upwelling from upwelling generator tube 8 is floated in the water.In addition, proportion is littler gently than weight C than 1, climbs up on top of the water to go up and to outlet side 3b side shifting, is transmitted to be with 10 to pick up and be disposed to the outside.
Also have because inclination screen cloth 6 has been applied in vibration, so even in gently be in the downside of heavy anharmonic ratio weight A than weight B, also can become upside naturally by vibration, make it positively to float by upwelling.In addition, inclination screen cloth 6 can not stop up mesh yet.
Fig. 4 represents the 2nd embodiment.This screening plant 1 also is to screen aggregate from the described mixture D based on aggregate, the same with the 1st embodiment, the end of the horizontal wide basket 3 in being lifted on the wide tank 2 of horizontal stroke, be provided with inclination screen cloth 6, in the inclination way of inclination screen cloth 6, be provided with and make upwelling generator tube 8 that upwelling takes place and the suction tube 9 that attracts to be floated on undersurface suspending object from the below because of upwelling.
This basket 3 is separated without demarcation strip, the mixture that drops into supply side 3a from chute feeder 5 is not divided into different size, anharmonic ratio weight A avale on the inclination screen cloth 6 and descend move after, avale at the end of screw clamp 2 from the outlet side 3b of lower end side, reclaim by discharging screw rod 11 screenings.In addition, in gently avale on the inclination screen cloth 6 and descend and move than weight B, in this way, be used to be floated on the underwater from the upwelling of upwelling generator tube 8, be attracted pipe 9 attractions and be disposed to the outside, gently climb up on top of the water and go up and move to outlet side 3b side, be transmitted and be with 10 to pick up and enter to the outside than weight C.
In addition, be attracted pipe 9 even anharmonic ratio weight A takes current and attract, the power of being brought by deadweight of avaling surpasses the buoyancy (attraction) that causes because of attracting, on the inclination screen cloth 6 of its below of still can avaling once again.
Also can suitably adopt vibration generating mechanism 7 in this embodiment.
Fig. 5 represents the 2nd embodiment.This screening plant 1 does not have described basket 3, from the supply side 2a side of the wide tank 2 of horizontal stroke along the end that slopes downwardly into outlet side 2b side, so that this mode that covers of base is arranged a plurality of upwelling generator tubes 8 comprehensively.The same in the underwater with the 2nd embodiment, suction tube 9 is under shed, by pump 12 water of tank 2 is attracted to suction tube 9, during removing by filter 13, the water that attracts gently is recycled than after the weight B, once more, make it so that the tank 2 interior modes that upwelling takes place are sprayed from each upwelling generator tube 8.In addition, near the water surface of outlet side 2b side, be provided with the conveyer belt that floats thing 10 on the pumped surface, be provided with at the end of outlet side 2b side and discharge screw rod 11.
In this embodiment, drop into from chute feeder 5 among the mixture D of supply side 2a of tanks 2, the anharmonic ratio weight A that avales descends and moves at the end of the tank 2 that slopes downwardly into outlet side 2b side, reclaim by discharging screw rod 11 screenings, gently be used to be floated in the water in slowly avaling, be attracted pipe 9 attractions and be disposed to the outside from the upwelling of each upwelling generator tube 8 than weight B.In addition, gently being transmitted than weight C on climbing up on top of the water is with 10 to pick up and be disposed to the outside.In addition, be attracted pipe 9 even anharmonic ratio weight A takes current and attract, the power of being brought by deadweight of avaling surpasses the buoyancy (attraction) that causes because of attracting, and on the bottom surface of its screw clamp 2 that still can avale once again, utilizes its inclination to move to and discharges screw rod 11.
Fig. 6 represents the 4th embodiment.The flow direction of the mixture D of this screening plant 1 under the overlooking of tank 2 is provided with a plurality of suction tubes 9 successively, and for each suction tube 9
1, 9
2Be respectively equipped with upwelling generator tube 8
1, 8
2, this each suction tube 9
1, 9
2The attraction and the climbing power of upwelling generator tube 8 strengthen successively towards described flow direction.
In this embodiment, because make suction tube 9
1, 9
2The flow area area identical, make each upwelling generator tube 8 simultaneously
1, 8
2Flow area area (aperture area) identical, so by making it attract flow velocity, rising (ejection) change in flow can carry out the variation of attraction, climbing power.
This embodiment is to lean on from upwelling generator tube 8
1Upwelling and be floated in the water in gently than weight B be attracted the pipe 9
1Attract to discharge, the smaller anharmonic ratio weight A ' of proportion of while aggregate etc. passes through from the 2nd upwelling generator tube 8
2Uprush and be floated in the water, by the 2nd suction tube 9 of strong attraction
2Attract to discharge, in addition, than the heavy slightly anharmonic ratio weight A of this anharmonic ratio weight A ' " pass through from the 3rd upwelling generator tube 8
3Uprush be floated in the water, by the 3rd suction tube 9 of strong attraction
3Attract to discharge.At this moment, even anharmonic ratio weight A, A ', A " take current and be attracted pipe 9
1, 9
2Attract, also can be according to this suction tube 9
1, 9
2Attraction directly be attracted, the power of being brought by deadweight of avaling surpasses the buoyancy (attraction) that causes because of attracting, on the inclination screen cloth 6 of its below of still can avaling once again, the lower end side outlet side 2b of the screw clamp 2 that avales again.
So, carried out triphasic attraction screening, anharmonic ratio weight A has been carried out the screening of distinguishing proportion (A ', A "); and have only metal its proportion of iron and steel, copper, lead etc. very big and avale to as anharmonic ratio weight A and to discharge among the screw rod 11, goes out from the outlet side 2b of the lower end side of tank 2 is screened.
In this embodiment, can suitably adopt basket 3, inclination screen cloth 6, vibration generating mechanism 7 etc.In addition, set the quantity of suction tube 9 and upwelling generator tube 8 according to the screening reasonable quantity ground of mixture D.In addition, as the figure chain-dotted line, if inclination screen cloth 6 is set, then as shown in Figure 4, because mixture D moves on it, so will positively bring into play described screening effect.
Fig. 7 represents the 5th embodiment.This screening plant 1 is as follows, and tank 2 is that lengthwise is very dark, and the chute feeder 5 from the water that is inserted into the cardinal principle intermediate depth drops into mixture D.Mode with the almost gross section that covers tank 2 below chute feeder 5 is provided with a plurality of upwelling generator tubes 8, above chute feeder 5, be provided with suction tube 9 under shed, the same with the 3rd embodiment, by pump 12 water of tank 2 is attracted to suction tube 9, during removing by filter 13, the water that is attracted out gently is recycled than after the weight B, once more, make it to be sprayed from each upwelling generator tube 8 in the mode that upwelling is taken place.In addition, near the conveyer belt that floats thing 10 that is provided with the water surface on the pumped surface, be provided with discharge screw rod 11 in the bottom.
In this embodiment, among the mixture D that chute feeder 5 drops into the water, the anharmonic ratio weight A that avales in the bottom of tank 2 reclaims by discharging screw rod 11 screenings, in the upwelling that gently can cross from each upwelling generator tube 8 than weight B be floated in the water, be attracted pipe 9 attractions and be disposed to the outside.Gently being transmitted than weight C on climbing up on top of the water is with 10 to pick up and be disposed to the outside.In addition, be attracted pipe 9 even anharmonic ratio weight A takes current and attract, the power of being brought by deadweight of avaling surpasses the buoyancy (attraction) that causes because of attracting, its below of still can avaling once again.
Fig. 8 and Fig. 9 represent the 6th embodiment.This screening plant 1 is as follows, and is the same with the 1st embodiment, be lifted on horizontal wide basket 3 in the horizontal wide tank 2 and be separated plate 4 and be separated into 5 row, the mixture D that will sieve into 5 class sizes from chute feeder 5 drop into this each be listed as.
The supply side 3a side that the basket 3 of mixture D is arranged in input, be provided with the portion that retains 14 at the end, retain at this at the end of portion 14, similarly be connected with the inclination screen cloth 6 (continuously) that slopes downwardly into outlet side 3b side with the 1st embodiment, by being installed on the vibrating mechanism 7 of basket on 3, the end and the inclination screen cloth 6 of the portion of retaining 14 applied vibration.
The described end that retains portion 14, slightly descend to inclination screen cloth 6 sides, at this distolateral discharge screw rod 15 that is provided with that tilts that descends, it partly connects tank 2 and the sidewall of basket 3 and the demarcation strip 4 of Ge Lie at the water surface, from the opening 15a that opens in each row, float to and gently be disposed to the outside on water surface of each row than weight C.Discharging the back side of screw rod 15, be provided with interception on climbing up on top of the water gently than weight C dykes and dams 16.
Also have, described vibration generating mechanism 7 is installed in the sidewall of basket 3 above discharge screw rod 15, discharge the sidewall sections of the tank 2 that screw rod 15 connects, in order to absorb via the sidewall of basket 3 and to discharge screw rod 15 and the vibration of transmitting, and the sidewall around connecting by flexible cover layer 17.
In addition, in the inclination way of described inclination screen cloth 6, each row of basket 3 all be provided with from below upwelling is taken place upwelling generator tube 8, with the suction tube 9 that attracts to be floated on suspending object in the water in the water by upwelling, the width that is formed on inclination screen cloth 6 with separately opening 8a, 9a is the mode of Zone Full roughly, makes it to be provided with relatively up and down.Each upwelling generator tube 8 and each suction tube 9 are cut apart is arranged in each row, separately opening 8a, the 9a of each row are the long hole shape of square-section, the opening 9a of each suction tube 9 and the area of section of its intake section form greatlyyer than the area of the opening 8a of each upwelling generator tube 8.
Also have, the same in the bottom of the tank 2 of outlet side 3b side with the 1st embodiment, be provided with the discharge screw rod 11 of discharging the thing that avales.
This embodiment is: drop into from chute feeder 5 each row the portions that retain 14 differentiation each mixture D of size, the vibration of the bottom by being applied to the portion of retaining 14, and make anharmonic ratio weight A be distributed to downside, in gently be distributed to upside than weight B.
Then, keep this state, by the following upper end side that moves by side to inclined screen net 6 of dykes and dams 16, on inclination screen cloth 6, still be distributed in upside in gently be floated in the water by upwelling from each upwelling generator tube 8 than weight B, attracted by each suction tube 9 and be disposed to the outside.
On inclination screen cloth 6 while being distributed in the anharmonic ratio weight A that downside moves, even because of upwelling enters among the suction tube 9, still can avale once again on the inclination screen cloth 6, among avale the discharge screw rod 11 at the end of screw clamp 2 from the outlet side 3b of the lower end side of inclination screen cloth 6, from the screened recovery of this outlet 11b.Flow velocity in the flow velocity of upwelling and the suction tube 9 for example is set at a second fast 0.7m in the row of minimum dimension, be set at a second fast 1.8m in the row of the size of maximum.
So, because set attraction speed, so even there is anharmonic ratio weight A to be attracted by each suction tube 9, it also can surpass the proportion of regulation and on the inclination screen cloth 6 of the below of avaling once again according to the size of mixture D.
Also have, distinguished on gently the climbing up on top of the water than weight C in mixture of each row of size, enter each opening 15a of the discharge screw rod 15 of rotation, 15b is discharged into the outside together from its outlet.
Figure 10 represents first variation of the 6th embodiment.This first variation, in outlet side 3b side, so that the 2nd upwelling generator tube 8 than the upwelling of the upwelling generator tube Final 8 can take place the downside of inclination screen cloth 6 and last side opening 8a, 9a mode setting respect to one another than upwelling generator tube 8 in the inclination way of being located at described inclination screen cloth 6 and suction tube 9 more close baskets 3
2And 2nd suction tube 9 stronger than suction tube 9 attractions
2
In this first variation, lean on from upwelling generator tube 8
1Upwelling be floated in the water in gently than weight B be attracted the pipe 9
1Attract to discharge, the less anharmonic ratio weight A ' of aggregate geometric ratio anharmonic ratio passes through from the 2nd upwelling generator tube 8 simultaneously
2Uprush be floated in the water, by the 2nd suction tube 9 of strong attraction
2Attract to discharge.At this moment, if taking current, anharmonic ratio weight A, A ' be attracted pipe 9
1, 9
2Attract, then at the suction tube 9 of front side
1In the double power of bringing than the deadweight of weight A, an A ' cause of avaling surpass and attract the buoyancy (attraction) that causes, on the inclination screen cloth 6 of the below of avaling once again, the suction tube 9 of rear side
2In the power of avaling brought because of deadweight of the anharmonic ratio weight A of iron, copper, lead etc. surpass and attract the buoyancy that causes, on the inclination screen cloth 6 of the below of avaling once again, the less anharmonic ratio weight A ' of aggregate geometric ratio anharmonic ratio directly is attracted and exports to the outside.
Therefore, carried out the attraction screening in two stages, anharmonic ratio weight A has carried out distinguishing the screening (A and A ') of proportion, and its proportion of metal that has only iron and steel, copper, lead etc. is very big and avale to as anharmonic ratio weight A and to discharge among the screw rod 11, goes out from the lower end side outlet side 3b of inclination screen cloth 6 is screened.
Figure 11 represents second variation of the 6th embodiment.This second variation is that the side nearby at the discharge screw rod 11 of the distolateral bottom of the discharge that is arranged at described tank 2 is provided with the 2nd and discharges screw rod 11a, is provided with from the distolateral nozzle 18 that horizontal flow towards the place ahead is taken place of the discharge of tank 2.
Therefore, the smaller anharmonic ratio weight A ' of proportion among the anharmonic ratio weight A that avales from the outlet side 3b of the lower end side of inclination screen cloth 6, aggregate etc., be subjected to from the influence of the horizontal flow of nozzle 18 and the place ahead of avaling the 2nd discharge screw rod 11a, have only the very large anharmonic ratio weight of the proportion A of the metal of iron and steel, copper, lead etc. directly to avale to discharge screenedly among the screw rod 11 to go out.
In the variation of Figure 10, Figure 11, the quantity of upwelling generator tube 8 and suction tube 9 is any.
In Figure 12, Figure 13, represent the 7th, the 8th embodiment, these two embodiments are first, second variation of the 5th embodiment shown in Figure 7, the embodiment of Figure 12 is that suction tube 9 is arranged to 9
1, 9
2Two, the embodiment of Figure 13 is that upwelling generator tube 8 is arranged to 8
1, 8
2Two. Two suction tubes 9
1, 9
2Attraction make the suction tube 9 of upstream side
1Suction tube 9 than the downstream
2A little less than, two upwelling generator tubes 8
1, 8
2Its ejection power also makes the upwelling generator tube 8 of upstream side
1Than downstream generator tube 8
2A little less than, same with the embodiment of Figure 10 thus, can carry out the screening of anharmonic ratio weight A, A '.At this moment,, anharmonic ratio weight A, A ' be attracted pipe 9 even taking current
1, 9
2Attract, also can be according to this suction tube 9
1, 9
2Attraction directly be attracted, the power of being brought by deadweight of avaling surpasses the buoyancy (attraction) that causes because of attracting, its below of still can avaling once again.
Comprise described each embodiment, the shape of the intake section of suction tube 9 can be form shown in Figure 14, and in addition, the entrance shape of upwelling generator tube 8 also can be identical.In this embodiment, the quantity of upwelling generator tube 8 and suction tube 9 is any.
In the respective embodiments described above, anharmonic ratio weight A is avaled from the mesh of inclination screen cloth 6, in addition, the member that each embodiment does not have can suitably adopt in the embodiment of this member not.For example, can in each embodiment of Fig. 2, Fig. 4, Fig. 6, suitably adopt the portion 14 that retains.
Though each embodiment is the screening situation of the aggregate of construction waste, but from above-mentioned system paper wood chip, separating when removing gravel etc. and in the screening of the shot of trap field etc., also can adopt this each embodiment, can obtain the effect that its screening precision improves.Under these situations, the having or not etc. of the quantity of upwelling generator tube 8 and suction tube 9, inclination screen cloth 6 can be screened thing according to object and suitably be set.The situation of shot for example because object screening thing is one, so the quantity of upwelling generator tube 8 and suction tube 9 have one just much of that.
Claims (24)
1. a screening plant (1), it drops into screened mixture (D) in the tank (2), utilizes avale anharmonic ratio weight (A) in the described mixture (D) at the bottom of the screw clamp of its difference in specific gravity screening, it is characterized in that,
In described tank (2), be provided with and make upwelling generator tube (8) that upwelling takes place and being floated on suspending object in the water because of this upwelling from be attracted to the suction tube (9) of top under shed (9a), set the attraction of this suction tube (9), even so that described anharmonic ratio weight (A) enters in the suction tube (9) also can avale by deadweight.
2. screening plant according to claim 1 is characterized in that, makes the flow velocity of the described upwelling of attraction velocity ratio of described suction tube (9) slow, even described anharmonic ratio weight (A) enters in the suction tube (9), and also can be by by heavily avaling.
3. screening plant according to claim 2, it is characterized in that, make the aperture area of described upwelling generator tube (8), flow area area than the intake section of the suction tube (9) that attracts to described top from the opening (9a) of described suction tube (9) is narrow, makes the flow velocity of the described upwelling of attraction velocity ratio of described suction tube (9) slow.
4. according to each described screening plant in the claim 1~3, it is characterized in that, will be separated into multiple row in the described tank (2), described suction tube (9) is set respectively at these each row that is separated with vertical demarcation strip (4).
5. screening plant according to claim 4 is characterized in that, the mixture (D) that will drop in the described tank (2) is done size distinction, and these mixtures (D) that carried out size distinction are put into respectively in described each row that is separated.
6. according to each described screening plant in the claim 1~3, it is characterized in that, set gradually a plurality of described suction tubes (9), strengthen this each suction tube (9 successively towards described flow direction towards the flow direction of described mixture (D)
1, 9
2) attraction.
7. screening plant according to claim 4 is characterized in that, sets gradually a plurality of described suction tubes (9) towards the flow direction of described mixture (D), strengthens this each suction tube (9 successively towards described flow direction
1, 9
2) attraction.
8. screening plant according to claim 5 is characterized in that, sets gradually a plurality of described suction tubes (9) towards the flow direction of described mixture (D), strengthens this each suction tube (9 successively towards described flow direction
1, 9
2) attraction.
9. screening plant according to claim 4 is characterized in that, with respect to described each suction tube (9) upwelling generator tube (8) is set respectively.
10. screening plant according to claim 5 is characterized in that, with respect to described each suction tube (9) upwelling generator tube (8) is set respectively.
11. screening plant according to claim 6 is characterized in that, with respect to described each suction tube (9) upwelling generator tube (8) is set respectively.
12. according to each described screening plant in the claim 9~11, it is characterized in that, strengthen the upwelling of described each upwelling generator tube (8) towards the flow direction of described mixture (D) successively.
13. according to each described screening plant in the claim 1~3,5 and 7~11, it is characterized in that, the opening (8a, 9a) of described upwelling generator tube (8) and suction tube (9) is formed the long hole shape long in the horizontal with respect to the flow direction of described mixture (D) respectively.
14. screening plant according to claim 4 is characterized in that, the opening (8a, 9a) of described upwelling generator tube (8) and suction tube (9) is formed the long hole shape long in the horizontal with respect to the flow direction of described mixture (D) respectively.
15. screening plant according to claim 6 is characterized in that, the opening (8a, 9a) of described upwelling generator tube (8) and suction tube (9) is formed the long hole shape long in the horizontal with respect to the flow direction of described mixture (D) respectively.
16. according to each described screening plant in the claim 1~3,5 and 7~11,14~15, it is characterized in that, between the described upwelling generator tube (8) and suction tube (9) in described tank (2), flow direction towards described mixture (D), the downward-sloping lower end that is provided with is as outlet side and open inclination screen cloth (6), upper end side at this inclination screen cloth (6) drops into described mixture (D), from the outlet side of described lower end side described anharmonic ratio weight (A) is avaled at the bottom of the described tank.
17. screening plant according to claim 4, it is characterized in that, between the described upwelling generator tube (8) and suction tube (9) in described tank (2), flow direction towards described mixture (D), the downward-sloping lower end that is provided with is as outlet side and open inclination screen cloth (6), upper end side at this inclination screen cloth (6) drops into described mixture (D), from the outlet side of described lower end side described anharmonic ratio weight (A) is avaled at the bottom of the described tank.
18. screening plant according to claim 6, it is characterized in that, between the described upwelling generator tube (8) and suction tube (9) in described tank (2), flow direction towards described mixture (D), the downward-sloping lower end that is provided with is as outlet side and open inclination screen cloth (6), upper end side at this inclination screen cloth (6) drops into described mixture (D), from the outlet side of described lower end side described anharmonic ratio weight (A) is avaled at the bottom of the described tank.
19. screening plant according to claim 12, it is characterized in that, between the described upwelling generator tube (8) and suction tube (9) in described tank (2), flow direction towards described mixture (D), the downward-sloping lower end that is provided with is as outlet side and open inclination screen cloth (6), upper end side at this inclination screen cloth (6) drops into described mixture (D), from the outlet side of described lower end side described anharmonic ratio weight (A) is avaled at the bottom of the described tank.
20. screening plant according to claim 13, it is characterized in that, between the described upwelling generator tube (8) and suction tube (9) in described tank (2), flow direction towards described mixture (D), the downward-sloping lower end that is provided with is as outlet side and open inclination screen cloth (6), upper end side at this inclination screen cloth (6) drops into described mixture (D), from the outlet side of described lower end side described anharmonic ratio weight (A) is avaled at the bottom of the described tank.
21. according to each described screening plant in the claim 17~20, it is characterized in that, the mechanism that described inclination screen cloth (6) is applied vibration be set.
22. screening plant according to claim 16 is characterized in that, the mechanism that described inclination screen cloth (6) is applied vibration is set.
23. screening plant according to claim 21 is characterized in that, in the upper end side of described inclination screen cloth (6), links the portion that retains (14) that is provided with the described mixture that is dropped into (D).
24. screening plant according to claim 22 is characterized in that, in the upper end side of described inclination screen cloth (6), links the portion that retains (14) that is provided with the described mixture that is dropped into (D).
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-340740 | 2005-11-25 | ||
JP2005340740 | 2005-11-25 | ||
JP2005340740 | 2005-11-25 | ||
JP2006280340A JP4829744B2 (en) | 2005-11-25 | 2006-10-13 | Sorting device |
JP2006280340 | 2006-10-13 | ||
JP2006-280340 | 2006-10-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1970160A true CN1970160A (en) | 2007-05-30 |
CN1970160B CN1970160B (en) | 2011-03-16 |
Family
ID=38276884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006101603232A Expired - Fee Related CN1970160B (en) | 2005-11-25 | 2006-11-22 | Filtering device |
Country Status (4)
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---|---|
JP (1) | JP4829744B2 (en) |
KR (1) | KR101279795B1 (en) |
CN (1) | CN1970160B (en) |
TW (1) | TWI374058B (en) |
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- 2006-10-13 JP JP2006280340A patent/JP4829744B2/en active Active
- 2006-11-06 TW TW095140980A patent/TWI374058B/en not_active IP Right Cessation
- 2006-11-22 KR KR1020060115782A patent/KR101279795B1/en not_active IP Right Cessation
- 2006-11-22 CN CN2006101603232A patent/CN1970160B/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
JP2007167835A (en) | 2007-07-05 |
JP4829744B2 (en) | 2011-12-07 |
TW200726518A (en) | 2007-07-16 |
TWI374058B (en) | 2012-10-11 |
KR20070055358A (en) | 2007-05-30 |
KR101279795B1 (en) | 2013-06-28 |
CN1970160B (en) | 2011-03-16 |
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