CN1035963A - Simple-and double-platen stone separator - Google Patents
Simple-and double-platen stone separator Download PDFInfo
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- CN1035963A CN1035963A CN88109223A CN88109223A CN1035963A CN 1035963 A CN1035963 A CN 1035963A CN 88109223 A CN88109223 A CN 88109223A CN 88109223 A CN88109223 A CN 88109223A CN 1035963 A CN1035963 A CN 1035963A
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- screen surface
- compass screen
- air
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- stone
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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
- B03B4/00—Separating by pneumatic tables or by pneumatic jigs
- B03B4/02—Separating by pneumatic tables or by pneumatic jigs using swinging or shaking tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
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Abstract
The present invention relates to a kind of stream (20) from product separates and the sorting heavy seeds, particularly from bread basket (29), separate and the method and apparatus of sorting stone (28), product is input on the compass screen surface (3,3b, 3d) by a feeding pipeline, basically the compass screen surface that is the vibration that the air that layeredly flows through inclination passes, heavy seeds on compass screen surface pushes to its upstream, discharges in the end separating of higher position then.
Description
The present invention relates to a kind of method of separating particles mixture; sorting heavy seeds particularly; as the stone in the bread basket; wherein product is sent at least one aspect; basically be then and layeredly flow through an inclination; air can pass; the compass screen surface (preamble of claim 9) of vibration; also be particularly related to a kind of method of sorting heavy seeds; especially the stone in the bread basket; wherein; product is delivered on the compass screen surface; and be the compass screen surface of hollow that can pass and the vibration of layeredly flowing through inclination basically; promptly; the heavy foreign material of directly placing on compass screen surface push towards the compass screen surface upstream, and at the separated discharge in the compass screen surface end of higher position (preamble of claim 1).
In the past, once in many ways a kind of maslin was separated into heavy particle and light particulate fraction, the central issue of this moment is by sorting out in the bread basket with stone.Stone, glass fragment, metal fillings and other impurity with middle-sized cereal fundamental difference, therefore just can separate by means of screen equipment with regard to size.Known this cereal such as wheat, barley, rye, oat, Si Peierte wheat also have other vegetable seeds, and as coffee, cocoa bean, soybean, sesame, flowers and trees seed, the appearance and size of these cereal is in the narrow and small relatively scope.Every those greater than a definite hole, can both easily separate by simple screen equipment as other product less than the particle of another pore.But difficulty is, the impurity that those and good bread basket size is roughly the same sorts out and gets rid of.
In the past, often adopt a kind of WATER-WASHING METHOD, wherein, all impurity heavier than bread basket are deposited on the bottom in pond, at this moment, utilization be the gravitational effect buoyancy in other words of water.The major advantage of this method is the cleaning action that has simultaneously bread basket.Because produced simultaneously rinse water of this method and corresponding microorganism problem, this solution had almost been replaced by so-called dry cleaning in recent years entirely.
In dry cleaning, on compass screen surface, produce a kind of similar lift by vibration and a kind of strong air stream, as in the washing.In fact, in the recent two decades, thisly advised type by this case applicant, the method great majority that are used for the stone sorting are successful, at least in these methods, to degree of sorting have higher requirement (referring to DE-PS1913707).At this moment, at first give one of hierarchical channel generation and give layering along one.Heavy seeds sinks to the zone near compass screen surface, above compass screen surface, has a light thing layer that slides with a certain distance from compass screen surface simultaneously, and its direction is the end that is placed in lowest part towards the inclined plane, in other words, and towards the outlet of corresponding light thing component.The heavy seeds that is deposited on the compass screen surface moves by the vibration and the propelling movement of compass screen surface, pushes towards the compass screen surface end direction that is placed in higher position, and simultaneously, stone is separated fully in the end parts abscission zone, and passes through the corresponding discharge that exports.The major defect of this known solution is essential especially triangular structure, and it can only improve output limitedly.
Afterwards, various other solutions had all been done prelibation, but did not obtain the result of real practical significance.In most of the cases, the degree of sorting that realize initial described solution is impossible.For this reason, done different tests, promptly improved with two compass screen surfaces of settling up and down, wherein, the compass screen surface of top has a kind of screening and layer functions mostly, shown in DE-OS2533274.In this solution, have only with auxilliary to add measure, can reach one basically completely as special device etc., that is to say almost 100% stone sorting.
GB-PS1536905 discloses a kind of cereal seperator, and these facility have an inclination and compass screen surface perforate, settles a ventilation blower that produces air stream under compass screen surface.Whole seperators comprises that the shell that ventilation blower is installed is hard-wired, and has only the work compass screen surface to move.
In addition, traditional circulating air system is known, but in fact, always has stress problems in the respective regions in the housing, and particularly, so-called useless air problem can not be eliminated.
Last in the separation method of known granulate mixture; particularly in the method for separating of heavy product; it is very debatable that air is carried; particularly transmit for mutual nothing product that interfere, desirable and air; comprise the input of product and air; its result has limited the raising of output, particularly under the sorting situation that requires.
Task of the present invention is, a kind of separation method of new granulate mixture is provided, particularly a kind of new stone method for separating and a device of implementing this method, and new dry type gravity separation system in other words, this system has bigger output.
Solve in the method for this task under claim 1 reaches.That is, product is input to the product Disengagement zone that is positioned at higher compass screen surface end with wide as far as possible stream interface.
Adopt first concrete experiment of the present invention's design to have two kinds of surprising implications.At first, degree of sorting is beyond thought height, secondly is that the inventor has selected an input position, and it must be wrong by the creed of all these professional domains so far.But it but allows desired result occur.People are the imagination still so far, particularly for the design of giving separation (seeing DE-PS1913707), this method is divided into the space and two steps time.As the first step, seek a kind of separating layer, lean on the level of compass screen surface should comprise all heavy seeds, then, as one going on foot (second step) subsequently, the layering of carrying out in a passage of giving wants interference-free to be transported on the compass screen surface, and stone is sent to the stone outlet.In the sorting compass screen surface end regions of highest point, just carry out effective centrifugation, and special stone is seen off.Heavy impurity should only account for the minority percentage of whole bread baskets by general fashion, so correspondingly minimum size (triangular tip) is occupied in the end parts abscission zone, because have only the fraction of all over products to be sent to the there.If end parts abscission zone or the compass screen surface gradient of this moment have been done wrong adjusting, too much bread basket can get there, and it is unfavorable that local air stream is selected, and so, the stone sorting work is not very bad, exactly a large amount of cereal is discharged from stone.Thereby the end parts abscission zone is a position that must come under observation especially always.It is skimble-skamble that some of people imagined some, as sending into a large amount of sorting bread baskets for the treatment of in the stone Disengagement zone on compass screen surface.Any interference at this place all can make the working method of sorting compass screen surface degenerate immediately.
Thus, the inventor has been completely free of all so far scheme imaginations and the imaginary thus unmodifiable law of nature that derives, that is:
-one is given separation is to need especially;
-and the time and the stroke that give separation require to separate up to heavy seeds;
-or product send into by the big zone of a compass screen surface, that is to say, make each stone obtain the seperator meeting of maximum possible.
Product could be adjusted then, and free of a burden realizes these designs, promptly particularly:
The input of-product will be carried out with wide as far as possible stream interface.
-and product stream directly deliver to the Disengagement zone that is positioned at compass screen surface end, top.
For compass screen surface can better be worked, compass screen surface should so be provided with, and, is positioned at the upstream that following heavy seeds is sent to compass screen surface that is.By this way, along with product is delivered to the compass screen surface end that is positioned at the higher position, most of heavy seeds are just stayed in the Disengagement zone, perhaps, when they are dragged away one section downwards on the contrary, can also want the earth to be moved upward to the end parts abscission zone again than the reliability of all known solutions so far.In order to realize a desirable working method, only there is the cleaning setting in an end parts abscission zone, and the adjusting problem of hollow amount and compass screen surface gradient.For an easy actual optimization scheme, the present invention has provided a preferred prerequisite, wherein, just can realize end separating on the width of maximum by setting up a kind of wide product stream, and not produce unnecessary layer thickness.
Above-mentioned task can solve by the method for type under the claim 9, that is, at least one compass screen surface vibrates with the cover of an arrangement corresponding with it, and this cover is used for the circulating air rotating device of band input and output air duct separately.
The advantage of doing like this is, whole system has a kind of self cleaning function.By this oscillating movement, originally the dust of Nian Fuing is just constantly shaken.According to this, a kind of time-consuming cleaning just is out of use.This just can guarantee that fluidized bed can be owing to not adhering to dust, and their cross section is changed, and so just can keep stable flow regime.
Be mounted with single parts regularly in cover, and can vibrate together with cover, when product was transported on the compass screen surface, product also just constantly vibrated.
Because compass screen surface and product dispensation parts vibrate simultaneously, in separation process, can make product on compass screen surface, be wide ground of tentiform and distribute.Equally, the cover and the basic element of character vibrate simultaneously, and can avoid is the sealing problem of shortcoming in the prior art.
By this compactness, exquisite frame mode and the vibration effect of necessity passed to all parts just can realize that immediately single function is separated from each other in simple mode, and cover fixed hermetically.
The present invention also allows other particularly advantageous structure setting in a large number.Be preferably in and produce a uniform fluidized bed (weight moves to the compass screen surface upstream, and light thing moves to the compass screen surface downstream) on the compass screen surface, and have the flow direction back-turning section that is positioned at place, compass screen surface higher position end region, product stream is delivered directly in the flow direction back-turning section.
The turning back of flow direction of light thing part produces in known manner.Simultaneously, compass screen surface continues part upwards has air-flow to pass equally, so that these light thing parts can rise from compass screen surface.Simultaneously, an air stream that points to the downstream in this position is crossed in products in circulation, just can avoid product to flow owing to the mechanism of compass screen surface further flow upstream (see figure 2).
In another particularly advantageous enforcement structure, the uncommon of show off emblem this concubine of an emperor of Engel curve this concubine of an emperor of attendant of the bride or bridegroom at a wedding razor clam of the Liao Dynasty that product at first is sent to a top dislikes pest saddle cloth mould mountain now to give birth appointing the general of taking off of unit of weight measurement, about six liang to gather around an act ancient type of banner hoisted on a featherdecked mast rank an ancient unit of weight equal to 20 or 24 *taels of silver mallet stupidly making a noise and cut beech and be worth the chaff inner feelings of wandering of male show off and closely question show off spring this refined daughter-in-law of receiving and favore with thirsty emigrant of wink stitch the sole to the upper and alarm clear and steal mould and slightly cut beech and hold the deep and remote Mo that robs and get over gorge astatine human skeleton Chi clear and take off Huan catfish Xing steathily and sneer and slap saddle and bridle a horse thumb τ and know the upper end region that halogen is kowtowed second compass screen surface well, and second compass screen surface is positioned at the below of first compass screen surface.
This measure makes from the compass screen surface of top, with only about half of flow, is displaced on the following compass screen surface as the weight layer but almost contain 100% heavy seeds.In addition, the real separation of heavy seeds to be separated is to carry out on the compass screen surface of bottom.Adopt this mode, in the single assembly with same air amount, product flow can increase to twice, and does not influence disintegrate-quality at all.
In another preferred embodiment of the inventive method, move towards the upstream with the propelling movement component more small on the product compass screen surface on top, and the second portion of heavy ends is then delivered to the lower end region and/or the zone line of following compass screen surface from the compass screen surface of top than the compass screen surface of bottom.
Its advantage is, the stone sorting be in that the time goes up and the space in two stages of separating, particularly preferred mode is that products in circulation are crossed the deflector of a distance arrangement above compass screen surface and carried.Like this, help on whole width of compass screen surface, transmitting product stream.
Advise of the flow direction conveying (promptly flow direction with heavy grain thing layer opposite) of product stream in addition according to the light grain layer.
In a particularly preferred embodiment of the inventive method,, an air stream (blowback stream) is blowed to this Disengagement zone on the mobile direction of turning back that heavy grain produce product move towards the compass screen surface upstream from bread basket for heavy seeds (stone) is separated.
The advantage of doing like this is to avoid light component, and promptly cereal and the heavy seeds on compass screen surface are carried to the compass screen surface upper end together.
In another particularly advantageous embodiment of the present invention, input blowback air-flow is feasible especially with air with the plain mode input between guide plate and compass screen surface, by this air stream, the heavy ends in the product is separated with light component.
In another particularly preferred embodiment, cover constitutes a casing that can vibrate support with compass screen surface, and this casing comprises that compass screen surface can vibrate together.
Complete favourable being provided with of another one conceived, and the input of product is the Disengagement zone of delivering to the gas producing formation that is positioned at the compass screen surface higher position with wide as far as possible stream interface, and air is discharged in the middle of the cover top, and is input to the end regions of following compass screen surface with wide stream interface.The advantage of doing like this is, the input of air from the beginning immediately with wide, promptly on whole compass screen surface width, come in to distribute winding-up by bottom.Equally, realize that in casing such air stream also is possible, promptly almost do not have undesirable eddy current to form.
In another preferred embodiment of the present invention, the zone on the upper area of the air discharge pipe of centre and following air input pipe, the dust in the circulating air obtains removing.According to this, the cleaning of moving air can be carried out in a certain favourable moment.At this moment, owing to there is cleaning to discharge parts, the eddy current of not expecting just can not produce interference effect to the air stream of winding-up compass screen surface.
In another preferred embodiment, product on the compass screen surface is on top carried by a groove (stone and product sink to mouth), the heavy product component that arrives groove this moment is discharged by the bottom of groove, deliver to following compass screen surface middle part by a tilting slide plate opposite with the installation direction of top compass screen surface, in contrast, the light thing component that on top flows through on the compass screen surface groove is transported to the light component outlet.By this way, the weight layer just can fully sink to sink in the mouth continuously at an easy rate and go, and directly sends to downwards.Therefore, can produce very high degree of sorting for heavy foreign material.In addition, can also finish the separation of cleaning with the expense of minimum.
In addition, the invention still further relates to a device that is used for the separate shape mixture, sorting heavy seeds particularly, as stone from a kind of product stream, especially the stone in the cereal, the compass screen surface (preamble of claim 24) that this device has is that at least one air can pass, vibratile, tilt.Also be particularly related to the device of a kind of separation and sorting heavy seeds, this device is used for a kind of product stream, the particularly stone sorting in the cereal, has a feeder channel, on the compass screen surface that product stream is transported to that an air passes, vibratile and inclination, compass screen surface has a vibration towards compass screen surface higher position end and pushes component (preamble of claim 14).
Above-mentioned task of the present invention, the device by type under the claim 14 solves, and promptly feeder channel is passed in the end regions of compass screen surface higher position.
The result that test the special first time of surprisingly making of new equipment of the present invention is because under identical degree of sorting and identical air consumption, product flow can improve more than 50%, and does not need bigger structural modification expense for new equipment.
Described task is that at least one compass screen surface is to rinse the rotten lie palm of road two with casing one vulture Engel curve mould by the device solves of type under the claim 24
The advantage of doing like this is, not only compass screen surface but also the also vibration simultaneously of casing that is connected with compass screen surface.Thus, just can realize on purpose self cleaning action, those dust that adhering to can be shaken at the equipment run duration.
Simultaneously, whole system can also be arranged on box house and not have general sealing problem, because system of the present invention seals with the external world.So air just can be controlled in the desirable scope.
If this system is former in casing to be packing less with outside air, people will find the noisy additive air of whole air input system so.Equally, a favourable possible scheme is that in the following edge regions of compass screen surface, air is input to whole following compass screen surface.In a word, under desirable air conveying situation, just can realize one desirable, having can be with the product input of wide fan out, and does not have the phase mutual interference between product input and the air input.
In another preferred embodiment of apparatus of the present invention, feeder channel is distributed on the whole width of compass screen surface, its advantage be the input of product to be separated can be wide stream interface with smoothness.
In a fully special preferred embodiment, the inlet of feeder channel has a guide plate that certain distance is settled above compass screen surface.The advantage that guide plate has is that product to be sent is distributed on compass screen surface equably, and plays the effect that imports air stream in its following bottom side simultaneously.
In an especially preferred embodiment, guide plate has an overflow rib and bottom opening at its end regions along flow direction.Like this, major product flows on compass screen surface with the stream interface of broad, and heavy seeds is then drained by bottom outlet.Adopt this overflow rib, just can obtain one wide especially product stream,, after overflow rib groove in front has been filled, from groove, wander equably again on its following compass screen surface of settling because on whole width.
In a preferred embodiment, between guide plate and compass screen surface, settle an end parts abscission zone that is used for the stone sorting.
Under the bigger situation of output, be provided with an opening in addition, therefore the compass screen surface of two common vibrations will directly be installed up and down, and has identical air to pass.
Following compass screen surface preferably has the propelling movement component of a bigger updrift side towards the top compass screen surface, and simultaneously, following compass screen surface surface is more shaggy than top compass screen surface.According to this, top compass screen surface helps playing the effect of giving layering.Also advantageously, the compass screen surface of top has the discharge orifice of a following compass screen surface feeder channel of conduct at least in the end of its higher position.Like this, the end that is in the higher position of following compass screen surface just can be directly delivered in the heavy ends of a minimum.
Preferential especially is, the feeder channel that is used for following compass screen surface will extend to whole width of top compass screen surface, so as below produce a uniform product dispensation again on the compass screen surface.
The favourable mounting means of two-layer compass screen surface is that the compass screen surface of top makes product be transported to the upper end of following compass screen surface, by means of oscillating movement, also can expect to obtain to supply with synchronous cleaning action with product.
In the another one embodiment preferred, in casing, be provided with an air suction chamber and a separated circulating air input channel, circulating air injects in the lower curtate petiolarea of a compass screen surface at least.Thus, the change that air suction chamber and circular air channel are made on a little sizes is possible, and is varying sized as strengthening air capacity, promptly do not have narrow especially structure, and narrow structure can cause undesirable eddy current or other disadvantageous flowing effects.Total air stream can be sent into by compass screen surface in casing by interference-free, and especially in the lower surface area of bottom compass screen surface air stream is all being passed through equably on the width.
In another preferred embodiment of apparatus of the present invention, above casing, be provided with a product import that is positioned at an end, roughly take over and an air that is used to send circulating air back to that is positioned at the other end is sent pipeline back to for one in the air sucking-off of centre.According to this, might make product under good flow regime, the circulating air that passes corresponding compass screen surface from middle sucking-off, and can not caused interference to flow behavior because of the product of input.Adopt the product of this side to supply with, still product to be sent can be transported in the middle of the following compass screen surface.Simultaneously, also can be by this embodiment preferred with air sucking-off at an easy rate above the centre position.According to this, just can leave enough spaces of the passage of carrying as circulating air, can be arranged to relatively narrow and smallly, but can not disturb product to carry because be used for the what is called outlet of product.Like this, just can be in the following edge regions of compass screen surface, carry out air from the below and carry, wide from the beginning simultaneously, promptly on whole compass screen surface width from following air feed.
In another particularly preferred embodiment, casing is can be installed in quiveringly on the support, have a fixing tip end piece at the casing upper area, this extremity piece is taken over by the air sucking-off and is connected with an air separator, and is connected with static non-vibrating casing by flexible flexible pipe.By this compactness and structure dexterity, on casing, only there are three adapters place to have sealing problem, these adapters place are connected with not standing part, the tip end piece of vibration frame by the flexible pipe of flexibility, incite even that pavilion squid of swish taro of Kang Na hilltop by force and hold together the bad fair strand uncut jade abundant shallow 0 of the every tip of shaddock of receiving of rooms at the sides of or facing the principal rooms ┟ lush wicked class and step on and incite the health divinatory symbol and read aloud little M ü Buddhist nunnery and put lush fried twisted dough sticks and know well and rinse widely different imperial mandate and be coated with Huan Cui that stops and incite health how saddle cloth is herded in the promise of Ru fan having used the long extensive っ black mole in building, high mountain that wastes
In a preferred embodiment, the circulating air separator is connected with a suction ventilation machine and a dust discharge line.By this way just can be with the Impurity removal of thin skin in the air stream and dust composition.Its another advantage that has is that the air-breathing adapter of a circular air channel and a dust precipitator is connected.So just can avoid dust to build up in whole device, and make security of operation, sanitary condition is improved.Because the operation of circulating air only need be sent into the sub-fraction in the total air in the dust precipitator and filter.
In a further preferred embodiment, the compass screen surface of top is provided with a groove (stone and product sink to mouthful) at its bottom section, and has the through hole that drops in the bottom of groove, with further with the product flow point from being heavy ends and light component.
In addition, adopt the present invention can realize a high stone degree of sorting and sorting all still are present in heavy seeds in the bread basket after screen.Particularly advantageous is that method and apparatus of the present invention only needs a spot of air, and simple, and is very little with respect to the influence of output fluctuation.
With regard to several embodiments of the present invention, do in further detail and describe below, wherein each figure expression is:
One of Fig. 1 is used for the simple form of the small desk separator of stone sorting;
The product of Fig. 2 on compass screen surface supplied with;
The solution that Fig. 3 is identical with Fig. 1, but have two compass screen surfaces, be specially adapted to big output;
Solution of Fig. 4 according to Fig. 1, but have the passage of a circulating air;
Solution of Fig. 5 according to Fig. 3, but have the passage of a circulating air;
The solution that has the circulating air separator among Fig. 6 Fig. 5;
One of Fig. 7 and the similar solution of Fig. 3 have additional two heavy ends structures that comprise the stone centrifugation;
Embodiment variant of Fig. 8 with respect to Fig. 7 scheme.
Fig. 9 represents a stone groove on compass screen surface;
Figure 10 represents to have the passage that imports circulating air by casing as Fig. 3,7 and 8 device.
Following elder generation is referring to Fig. 1 and 2, and wherein Fig. 1 represents a kind of novel fundamental type that removes stone separator.Simultaneously, bread basket is delivered on the stratiform compass screen surface 3 by an import 2, and discharges by outlet 4 as the bread basket of clearing up therefrom.Settle the cover body 5 of a sealing above compass screen surface 3, it has a wind inlet 6.Cover body 5 and compass screen surface 3 are formed a vibrating device 7 together, and device 7 is vibrating on the upper end direction of compass screen surface 3 by the vibration excitation device 8 of a band vibration component.The upper end of compass screen surface 3 is by guiding the dull and stereotyped 19 end parts abscission zones of forming.Whole vibrating device 7 is bearing on the support 10 that is fixed on the floor 11 by spring element 9.Equally, support 10 fixedly connected non-vibrating tip end piece 12 settle an import 2 and an air sucking-off to take over 13 in tip end piece 12.In addition, take over air flow rate adjustment valve 14 of arrangement in 13, in order to regulate whole hollow amount of going stone separator 1 to suck in the air sucking-off.The connection of these vibrating mass.Being connected by flexible hose 15 of vibrating device 7 and tip end piece 12 realizes that flexible pipe 15 is placed under the import 2 in other words.
Compass screen surface 3 is from plane, and preferably having one is approximate rectangular shape at least.On compass screen surface, product extends on whole width of compass screen surface.This width is indicated with " B " in Fig. 2, and thickness is indicated with " D ".A kind of wide product stream 20 also claims product tape, finishes the purpose that product is supplied with two-step way.Bread basket is input in the distribution casing 17 in the cover body 5 of a vibration.The vibration effect impels bread basket to carry out uniformly in distributor box 17, distribute widely.For identical purposes, a stagnation plate 18 is set in distributor box 17 equally, so that be that wide product stream directly is directed on the guide plate 19 that stretches on the whole compass screen surface width, the product conductance that becomes uniform, wide is then gone on the compass screen surface 3.This wide extension of product stream 20 also will continue to carry out according to this, and promptly guide plate 19 is provided with an overflow rib 16 at its free end.Thus, guide plate 19 will be made groove shape.Separate for heavy product is given with light product, guide plate 19 also can have bottom outlet to be passed through to be used for heavier impurity.
On compass screen surface 3 wide, product stream expansion uniformly done explanation especially in Fig. 2.In the figure, had a mind to emphasize the structure of stratiform compass screen surface.Compass screen surface 3 has the silk screen 21 of a contact product, and compass screen surface 3 is made sandwich structure with known manner.Simultaneously, silk screen 21 is supported by cellular lath 34 by sandwich loess hills Gou Na tall building Gui visitor 1, and the lath bottom is fixed on the pore plate 22.Cleaning piece 24 is set in the single zone of 34 of laths, and cleaning piece 24 not only makes silk screen 21, and orifice plate 22 is kept clean.Herein, in addition importantly, orifice plate 22 has an air drag, and it substantially exceeds the hollow resistance of silk screen 21, and for example, its quantity ratio is 1: 10.Adopt this structure just can make air on the whole surface of compass screen surface 3, roughly keep constant, and irrelevant with the thickness of silk screen 21.
Gas producing formation is made up of three different levels basically.Wherein, weight layer 25 bottom, that contain heavy seeds is pushed to the upstream of compass screen surface by the throwing pendular motion of machinery.One keeps loose condition (of surface) from the isolated light thing layer 26 of heavy seeds by autotelic air stream, and keeps at a certain distance suspending above silk screen.Because compass screen surface 3 tilts, and the light thing layer 26 of its top not have the directly motive force in acquisition sensing compass screen surface downstream, but still keeping vibrating, and tends to floating so be in the light thing layer of compass screen surface lower position yet.In addition, the obliquity of compass screen surface 3 can be regulated by an adjusting device 35.A tri-layer 27 is made up of real heavy seeds, in most cases, other cereal, single impurity is only arranged, stone 28 or the like.Good, heavy cereal and light part, as capes, crust 30 all to have done diagram roughly with their corresponding forms separately.The heavy product that has stone 28 sinks on the compass screen surface 7 of vibration, because the rough surface that vibration and silk screen 21 form, heavy product is towards the upstream motion of compass screen surface.
For described function, importantly, air stream will correctly be imported.Promptly will suck air stream by one from bottom to top equably on whole compass screen surface, its flow direction is indicated by arrow 31.Air stream 31 makes bread basket be in a kind of fluidised state.Heavy part is only arranged, be that stone 28 is separated at the compass screen surface higher position, and be transported to a stone therefrom and sink in mouthfuls 45.Therefore, a suitable blowback air-flow 33 is set, just can avoids light part or cereal upstream to push with heavy impurity.The blowback air-flow is preferably in the following formation of guide plate 19.If guide plate 19 is connected with the cover body wall regularly, the air of importing between guide plate 19 and compass screen surface just can only flow out with direction shown in 33.
Therefore, because the effect of blowback air-flow except that stone 28, all stopped continuing to move before end regions, and stone 28 can continue to move towards the compass screen surface higher position in the cereal.
Thus, in fact blowback air-flow 33 has the flow front that can obviously regulate, and flow direction turns back 32 in other words.At flow direction back-turning section 32 places, fly up by compass screen surface by keen draft 31,33 from stone 28 separated cereal material 29, then with all light thing layers 26 to the compass screen surface downstream flow, light component is discharged in outlet 4.A kind of medium cereal may repeatedly do a kind of towards the compass screen surface upstream-towards the iterative motion in compass screen surface downstream, this situation occurs on critical cereal especially easily.
In Fig. 1 and Fig. 2, product stream 20 is directly inputted to flow direction and turns back in 32 zones.Flow direction is turned back and 32 is because three kinds of active forces produce: towards the mechanical motive force of compass screen surface upstream, upper strata 26 is to the floating sliding force in compass screen surface downstream, and the active force of blowback air-flow 33.
Fig. 3 is with respect to Fig. 1 main distinction structurally, uses two compass screen surfaces, the compass screen surface 3a of a top and the compass screen surface 3b of a bottom in Fig. 3.These two compass screen surfaces have identical structure basically, for example in Fig. 2.On the compass screen surface 3a on top, lack blowback air-flow 33 in principle, so that heavy seeds not only, and whole weight layer 25 is all towards the upstream motion of compass screen surface, and can be by a discharge-channel 40, cross a control panel 41 and fall on the guide plate 19.From guide plate 19, the working method of compass screen surface 3b is identical with the compass screen surface 3 of Fig. 1 or Fig. 2.
For fear of the product that enters at first stream 20 from distributor box 17 directly with weight layer 25 fusion mutually, the guide plate 42 of position, the top installation between distributor box 17 and compass screen surface 3a.
Crossing a product toward dirty products in circulation sinks to mouthfuls 43 and directly is discharged in the discharge-channel 44 of following compass screen surface 3b.Two kinds of product streams separating the heavy foreign material on two compass screen surface 3a and 3b are discharged in outlet 4 then together.At first, all heavy seeds are separated with weight layer 25 from the compass screen surface 3a of upper strata, just have real sorting then on the compass screen surface 3b of bottom, and by stone sluice gate 45 isolated stone 28 are drained.In addition, the stone sorting be on two times and the space on carry out in stage of separating.Promptly at first on the compass screen surface 3a of upper strata, form enriched layer with whole weights, for example 30% of all over products amount to 60%, just from the product that has reduced, stone and other heavy seeds are selected then, and seen off respectively.
Fig. 4 is identical with Fig. 1 with regard to product is carried, and Fig. 5 and Fig. 3 are corresponding to.But the solution of Fig. 4 and Fig. 5 has added the casing 50 of a sealing again, and casing 50 is by a compass screen surface, and perhaps some compass screen surfaces are divided into the suction chamber 52 below sucking-off chamber 51 above one and.Compass screen surface in other words following end one side of these compass screen surfaces be provided with a circular air channel 53, its flexible pipe 54 by a flexibility is connected with an air backpass ductwork 55.An air flow rate adjustment valve 56 is installed in the air backpass ductwork 55.In Fig. 4 and Fig. 5, casing 50 is supported on the support 10 of fixed-site by spring element 9.Under the double-deck case of machines in Fig. 5, (perpendicular to drawing) settles the outlet 4 of two tubular product channels 57 in both sides, so that chamber is retained between two product channels 57 that are used for circular air channel 53.Casing 50 in Fig. 4 and Fig. 5 in order to mark the saddle cloth rose glucoside swan plinth of being satisfied preferably
Relative Fig. 4 and Fig. 5 have done to replenish in Fig. 6, promptly add and have described a circulating air separator 60 that has suction draft machine 61 and drive motors 62.Wherein, air scution bush 13 directly feeds in the circulating air separator 60, simultaneously, main thin skin and dust, is that impurity part is then drained by drawing from the dust discharge tube 64 of air stream.
In most of the cases, adopt circulating air, settle an aircleaning facility that its advantage is arranged, build up because can avoid in whole device, producing dust according to this effectively.And maintainability and operating environment all are improved.The operation of circulating air has very big advantage, promptly has only air seldom, and for example 10% of return air quantity, need filter through dust precipitator.Thus, an open to atmosphere connector 65 is set, air separator 60 can be with ventilation blower directly to be fixed on the ceiling 66.
Fig. 7 difference basic with respect to Fig. 3 is to have only the extreme higher position of sub-fraction weight from top compass screen surface 3c among Fig. 7, the upper edge region of the flow direction back-turning section of compass screen surface 3d below being transported to downwards than large through-hole 71 on the whole width of compass screen surface.Most of weight is approximately delivered to the centre of following compass screen surface 3d by a slide plate 72, and passes through whole compass screen surface width.Many measurement results show that in this solution, most stone is still directly delivered on the following compass screen surface 3d by through hole 71.In the solution according to Fig. 7 and Fig. 8, importantly, the roughness of the compass screen surface 3d of the roughness ratio bottom of the compass screen surface 3c of top is little.As described at Fig. 9, wherein, the compass screen surface 3c of top is made by orifice plate, and following compass screen surface 3d is made by silk screen.
Be described among present Fig. 8 of particularly advantageous, unique scheme and Fig. 9.In Here it is on top the compass screen surface 3c zone stone is set and sinks to groove 80, its working method is, stone sinks to groove 80 and is made of a groove 81, and it extends on the whole width of compass screen surface 3c.Similar with the situation among Fig. 2, also form two different levels at Fig. 8 in 9, also weight layer 25 and the light thing layer 26 that separates with heavy foreign material layer.
Because the surface roughness of the compass screen surface 3c of top is less, so there be not real upwards flowing, whole at least weight layer 25 can not move upward.Following weight layer 25 flows to the downstream of compass screen surface very lentamente.As indicating with signal arrow 82.In contrast, the light thing layer 26(double-head arrow 83 that has big speed) flow to the downstream of compass screen surface.The weight layer sinks, and arrives in the groove 81, and sinks to stone and sink in the groove 80.Have the whereabouts through hole 84 of some in the bottom that stone sinks to groove 80, by hole 84, a part of product and stone are delivered on the following slide plate 72 together continuously, deliver to more precisely on the following compass screen surface 3d.Under the situation of the number that effective whereabouts through hole 84 correctly is set according to the flow of weight layer, light thing layer is separated with the weight layer, promptly weight layer 25 fully sinks in the stone groove 80 continuously, and directly carries downwards.Draw two major advantages thus:
1. by this way, has very high degree of sorting for heavy seeds (stone etc.);
2. only separate heavy foreign material, just can tell pure heavy ends (good cereal) and its excess is divided into light component (crust, not full grain and capes) with the expense of minimum.
According to this, the different solvent of sorting (stone, heavy and light) in a table apparatus only, and to have very high quality be possible.
At last, the device represented of Figure 10 is by the principle work identical with device among Fig. 3,7 and 8.For this reason, for the same structure parts to be repeated in this description at this be exactly unnecessary.The device of Figure 10 and the different of aforementioned means only are, circular air channel 53 ' in casing 50, be installed separately, and can avoid because passage 53 ' to the influence that air-flow character produced in the casing 50.
Claims (31)
1, is used for the sorting heavy seeds, the method of the stone in the bread basket (28) particularly, wherein, this product is input to a compass screen surface (3,3b, 3d) on, and be basically layeredly flow through inclination, air passes and the compass screen surface of vibration, promptly going up the heavy seeds quilt of directly placing at compass screen surface (3,3b, 3d) is pushed towards the compass screen surface upstream, and in the separation discharge of compass screen surface higher position, it is characterized in that this product is input to the separated region of the gas producing formation (25,26) that is positioned at the compass screen surface higher position with wide as far as possible stream interface.
2, according to the method for claim 1, it is characterized in that, go up at compass screen surface (3,3b, 3d) and to produce a uniform laminar flow (25,26), weight in the laminar flow (25) moves towards the upstream of compass screen surface, light thing (26) moves towards the downstream of compass screen surface, and laminar flow has a flow direction back-turning section (32) at the compass screen surface end regions that compass screen surface (3,3b, 3d) is positioned at higher position, and product stream (20) is directly inputted in the zone of said flow direction back-turning section (32).
3, according at least one method in the aforesaid right requirement, it is characterized in that, this product at first is sent to first an above-mentioned compass screen surface (3a, 3c), and at least to the compass screen surface upstream flow, by the first of the heavy ends of forming than the mixture of heavy grain produce product (29) and stone (28) (25) at the first compass screen surface (3a, end, top 3c) is so to carry, promptly, heavy ends (25) are transported to one with the stream interface of broad therefrom has same air to flow through, be in the second following compass screen surface (3b, 3d) upper end region, the said second compass screen surface (3b, 3d) be positioned at the first compass screen surface (3a, below 3c).
4, according to the method for claim 3, it is characterized in that, product on the compass screen surface on top (3a, 3c) upstream moves with the propelling movement component of small product on following compass screen surface (3b, 3d), and the second portion of heavy ends (25) is transported to the bottom and/or the middle part of following compass screen surface (3b, 3d) from the compass screen surface (3a, 3c) of top.
According at least one method in the aforesaid right requirement, it is characterized in that 5, this product stream (20) is by guide plate (a 19) input that certain distance is settled above compass screen surface.
6, at least one method in requiring according to aforesaid right is characterized in that, this product is with the flow direction of light grain layer (26) rightabout of heavy grain thing layer (25) (in other words with) input.
7, according at least one method in the aforesaid right requirement, it is characterized in that, in order from bread basket (29), to separate heavy seeds-stone (28), an air stream-blowback air-flow (33) blowed to separate the district (32) of turning back, its direction is opposite with the direction that heavy grain thing (29) moves to the compass screen surface upstream.
8, according to the method for claim 7, it is characterized in that the input between guide plate (19) and compass screen surface (3,3b, 3d) of this blowback air-flow (33).
9, be used to separate maslin, sorting heavy seeds particularly, the method of sorting stone (28) from bread basket for example, wherein, this product is sent at least one compass screen surface (3,3b, 3d), and be basically and layeredly flow through inclination, air pass with the vibration the stratiform compass screen surface, the method that one of requires according to aforesaid right particularly, it is characterized in that, at least one compass screen surface (3,3a, 3b, 3c, 3d) with one and its corresponding arrangement, be used for air circulation, and the cover with air duct that is used for input and output separately vibrates together.
According to the method for claim 9, it is characterized in that 10, cover constitutes a casing (50) that can vibrate support with compass screen surface (3,3a, 3b, 3c, 3d), this casing (50) is with compass screen surface (3,3a, 3b, 3c, 3d) vibration.
11, according to the method for claim 9 or 10, it is characterized in that, this product is input to the Disengagement zone (32) of the gas producing formation (25,26) that is arranged in the compass screen surface higher position with wide as far as possible stream interface, and air is discharged from the middle upper part of cover, and imports from the compass screen surface end region field width face ground of below.
According at least one method in the claim 9 to 11, it is characterized in that 12, circulating air is removed dust with the upper area of the air input passage (23) of bottom on the top of the air discharging channel (13) of centre.
13, according at least one method in the aforesaid right requirement, have two compass screen surface (3c that directly settle up and down, 3d), it is characterized in that, product compass screen surface (3c) is on top gone up and is carried by a groove (stone and product sink to groove (80)), bottom outlet (84) and a tilting slide plate (72) with compass screen surface (3c) the rightabout setting of the top zone line of delivering to following compass screen surface (3d) of the heavy ends (25) that arrive groove by bottom portion of groove, in contrast, the light component (26) that flows through on the groove of compass screen surface on top (3c) is transported in the light component outlet (44).
14, the heavy seeds that is used for a kind of product stream of sorting, the device of the stone (28) in the bread basket (29) particularly, have that an input product stream (20) passes to an air a, vibration with the compass screen surface that tilts (3,3b, 3c) on feeder channel, compass screen surface has a vibration towards compass screen surface higher position end and pushes component, it is characterized in that this feeder channel leads in the end regions of compass screen surface higher position.
According to the device of claim 14, it is characterized in that 15, this feeder channel is feed on whole width of compass screen surface (3,3b, 3c).
According to the device of claim 14 or 15, it is characterized in that 16, the inlet of this feeder channel has a guide plate (19) of settling at compass screen surface (3,3b, 3d) top certain distance.
17, according to the device of claim 16, it is characterized in that, this guide plate (19) has an overflow rib (16) and a base apertures in the end regions of its flow direction, like this, the main flow of product goes up and flows at compass screen surface (3,3b, 3c) with the product of wide stream interface stream (20).And heavy seeds (28,29) is discharged by bottom opening.
18,, it is characterized in that between guide plate (19) and compass screen surface (3b), being provided with an end parts abscission zone that is used for the sorting stone according to the device of claim 16 or 17.
According at least one device in the claim 12 to 18, it is characterized in that 19, the compass screen surface (3a, 3b, 3c, 3d) of two common vibrations is directly installed up and down, and has identical air to pass.
20, according to the device of claim 19, it is characterized in that, this following compass screen surface (3b, 3c) has the bigger propelling movement component of compass screen surface (3a, 3c) towards the ratio top of updrift side, thus, the rough surface of the surface ratio top compass screen surface (3a, 3c) of Xia Bian compass screen surface (3b, 3d).
According to the device of claim 20, it is characterized in that 21, the compass screen surface of this top (3a, 3c) has a discharge orifice (40,71) that plays the feed effect of following compass screen surface (3b, 3d) at least in the end of its higher position.
According to the device of claim 21, it is characterized in that 22, this feeder channel that is used for following compass screen surface (3b, 3d) extends to whole width of top compass screen surface (3a, 3c).
According at least one device in the claim 19 to 22, it is characterized in that 23, these two compass screen surfaces (3a, 3b, 3c, 3d) are to settle so mutually, promptly the compass screen surface of top (3a, 3c) is transported to product the upper end of following compass screen surface (3b, 3d).
24, be used to separate maslin, sorting heavy seeds particularly, in product stream (20), especially the device of the stone (28) in the bread basket (25), have compass screen surface vibration and that tilt that at least one air passes (3,3a, 3b, 3c, 3d), particularly, it is characterized in that according to one of any device of claim 12 to 23, at least one compass screen surface (3,3a, 3b, 3c, 3d) be one with the common vibration of casing (50), casing (50) is used for air circulation.
According to the device of claim 24, it is characterized in that 25, this product input channel (2) is the parts of casing (50).
26, according to the device of claim 25, it is characterized in that, be provided with an air suction chamber (51) and a separated circulating air input channel (53) in casing (50) inside, this passage injects circulating air at least in the end portion zone of a compass screen surface (3,3b, 3d).
27, according at least one device in the claim 24～26, it is characterized in that, on casing (50), be provided with a product import (2) that is positioned at an end, roughly take over (13) and an air backpass ductwork (55) that is used for circular air channel (53) for one at the other end in the air sucking-off in centre position.
28, according to the device of claim 27, it is characterized in that, this casing (50) can support quiveringly on a support (10), support (10) has a fixing tip end piece (12) in the zone above it, simultaneously, this tip end piece (12) is taken over (13) by the air sucking-off and is connected with a circulating air separator (60), and is connected with casing (50) by flexible hose (54).
According to the device of claim 28, it is characterized in that 29, this circulating air separator (60) is connected with a suction ventilation machine (61) and a dust discharge line (64).
30, rinse ether room, the drooping plan of an ancient small-mouthed wine vessel tomb palm ǖ according to the noisy boundless and indistinct of distant happy Huan king crab father of claim 24 to 29 tool and burst 3) be connected with an open to atmosphere connector (65) that is used for the fine dust deduster.
31, according at least one device in the claim 12 to 30, it is characterized in that, the compass screen surface of this top (3a) has a groove-stone in the zone of its lower position or product sinks to groove (80), and have the through hole of falling into (84), so that heavy ends (25) and light component (26) further in the products of separated stream at bottom land.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH04626/87-6 | 1987-11-27 | ||
| CH462687 | 1987-11-27 | ||
| CH1110/88A CH676209A5 (en) | 1988-03-24 | 1988-03-24 | Stone separator system from grain |
| CH01110/88-7 | 1988-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035963A true CN1035963A (en) | 1989-10-04 |
| CN1014870B CN1014870B (en) | 1991-11-27 |
Family
ID=25686687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88109223A Expired CN1014870B (en) | 1987-11-27 | 1988-11-28 | Simple-and double-platen stone separator |
Country Status (13)
| Country | Link |
|---|---|
| EP (2) | EP0318054B1 (en) |
| JP (2) | JP2530736B2 (en) |
| KR (2) | KR940006018B1 (en) |
| CN (1) | CN1014870B (en) |
| AU (2) | AU612759B2 (en) |
| BR (2) | BR8807331A (en) |
| CZ (1) | CZ280323B6 (en) |
| DE (2) | DE3887834D1 (en) |
| ES (2) | ES2049741T3 (en) |
| HU (2) | HU208501B (en) |
| PL (1) | PL161158B1 (en) |
| SK (1) | SK278526B6 (en) |
| WO (2) | WO1989004721A1 (en) |
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| CN1970160B (en) * | 2005-11-25 | 2011-03-16 | 株式会社栗本铁工所 | Filtering device |
| CN102430522A (en) * | 2011-12-29 | 2012-05-02 | 河北苹乐面粉机械集团有限公司 | Gravity grading and stoning machine for grains |
| CN101056717B (en) * | 2004-11-09 | 2012-07-04 | 布勒公司 | Device for separating granular material |
| CN102909177A (en) * | 2011-08-05 | 2013-02-06 | 独立行政法人国际农林水产业研究中心 | Separating device of solid mixture |
| CN104438085A (en) * | 2014-10-16 | 2015-03-25 | 山东禹王生态食业有限公司 | Electric dustpan device peeling beans |
| CN106238332A (en) * | 2016-08-26 | 2016-12-21 | 新昌县科宇机械有限公司 | A kind of wood shavings sorting unit |
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| FI98605C (en) * | 1995-09-18 | 1997-07-25 | Sunds Defibrator Loviisa Oy | Methods and devices for separating heavy components from lighter ones |
| KR100719459B1 (en) * | 2005-11-18 | 2007-05-17 | 태성개발(주) | Dust seperating apparatus and it's method using closed vibration screen |
| DE102006035260A1 (en) | 2006-07-26 | 2008-01-31 | Martin GmbH für Umwelt- und Energietechnik | Method and device for separating residues |
| US8800776B2 (en) | 2010-04-15 | 2014-08-12 | Allmineral Aufbereitungstechnik Gmbh & Co. Kg | Multi-deck air jigging machine |
| KR101177824B1 (en) * | 2010-04-20 | 2012-08-29 | 김진수 | Sorting equipment |
| DE102013004417B4 (en) * | 2013-03-15 | 2016-06-30 | BEAR Mühlen & Behälter GmbH | Process and installation for the sedimentation of heavy particles from cocoa beans |
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| DE102022131974A1 (en) | 2022-12-02 | 2024-06-13 | Ifm Electronic Gmbh | Method and device for detecting foreign bodies in grain |
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| US1701624A (en) * | 1925-02-05 | 1929-02-12 | Martin J Lide | Dry separator |
| US1813303A (en) * | 1926-12-16 | 1931-07-07 | Martin J Lide | Dry separator |
| US2928545A (en) * | 1956-07-16 | 1960-03-15 | Arthur R Forsberg | Gravity separator |
| GB1332724A (en) * | 1970-01-14 | 1973-10-03 | Forsberg R A | Air cleaners |
| GB1536905A (en) * | 1976-03-31 | 1978-12-29 | Satake Eng Co Ltd | Grain separator |
| JPH0659463B2 (en) * | 1984-05-08 | 1994-08-10 | ビューラー アーゲー | Apparatus and method for selectively removing heavy objects, especially stones, etc. from grains or other loose materials |
| CH672440A5 (en) * | 1986-12-01 | 1989-11-30 | Buehler Ag Geb |
-
1988
- 1988-11-25 SK SKPV7782-88A patent/SK278526B6/en unknown
- 1988-11-25 CZ CS887782A patent/CZ280323B6/en not_active IP Right Cessation
- 1988-11-28 WO PCT/EP1988/001078 patent/WO1989004721A1/en unknown
- 1988-11-28 DE DE88119819T patent/DE3887834D1/en not_active Expired - Fee Related
- 1988-11-28 DE DE8888119820T patent/DE3873035D1/en not_active Expired - Fee Related
- 1988-11-28 JP JP1500049A patent/JP2530736B2/en not_active Expired - Lifetime
- 1988-11-28 CN CN88109223A patent/CN1014870B/en not_active Expired
- 1988-11-28 ES ES88119819T patent/ES2049741T3/en not_active Expired - Lifetime
- 1988-11-28 HU HU893383A patent/HU208501B/en not_active IP Right Cessation
- 1988-11-28 EP EP88119820A patent/EP0318054B1/en not_active Expired - Lifetime
- 1988-11-28 EP EP88119819A patent/EP0318053B1/en not_active Expired - Lifetime
- 1988-11-28 BR BR888807331A patent/BR8807331A/en not_active IP Right Cessation
- 1988-11-28 ES ES198888119820T patent/ES2033403T3/en not_active Expired - Lifetime
- 1988-11-28 JP JP1500048A patent/JP2525493B2/en not_active Expired - Lifetime
- 1988-11-28 KR KR1019890701391A patent/KR940006018B1/en not_active IP Right Cessation
- 1988-11-28 AU AU28082/89A patent/AU612759B2/en not_active Ceased
- 1988-11-28 WO PCT/EP1988/001079 patent/WO1989004722A1/en unknown
- 1988-11-28 HU HU886800A patent/HU204449B/en not_active IP Right Cessation
- 1988-11-28 BR BR888807330A patent/BR8807330A/en not_active IP Right Cessation
- 1988-11-28 PL PL1988276049A patent/PL161158B1/en unknown
- 1988-11-28 AU AU28104/89A patent/AU612451B2/en not_active Ceased
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- 1989-07-24 KR KR89071390A patent/KR950011184B1/en not_active IP Right Cessation
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