1374058 九、發明說明： 【發明所屬之技術領域】 本發明係關於在水槽内藉比重差而篩選混合物之濕式之 • 篩選裝置。 . 【先前技術】 作為利用比重差之混合物之篩選裝置，在水槽内藉比重 差而使混合物浮起、沉降之濕式之篩選裝置被使用於各種 領域之中》 籲 此濕式篩選裝置例如在欲獲得造紙原料之木材屑之情 形，被使用於由混合有砂礫、鐵片等重比重物之混合物中 分離該重比重物作為異物之領域，為有效回收比重大Mi 之中輕比重物之木材屑，在水槽中設置撈起用輸送帶由 此輸送帶之背後部吸引水槽中之水而供應至重比重物沉降 之水槽之垂直筒下部，使垂直筒中產生上升流，藉上升流 推回在垂直筒中沉降之中輕比重物之木材屑，而以輸送帶 將其榜起（參照專利文獻1 )。 ® .[專利文獻丨]日本特開昭62-79858號公報 又，在廢棄物處理領域中，會進行由建築廢料之混凝土 中回收比重2·5以上之重比重物之骨材再利用。此被回收 之骨材中混有塑膠片、木片等。在此種混合物中之塑膠片 中，混入有聚丙烯樹脂及聚乙烯樹脂等比重小於丨之輕比 重物與氯乙稀樹脂等比重大於1之中輕比重物。又，也 有濕的木片之比重大於1而以中輕比重物混入其中之情 形。由混人此種中輕比重物之混合物中，利用濕式筛選裝 H5598.doc 置筛選骨材時’會有沉降之中輕比重物混入骨材中導致 骨材之缔選精度惡化之問題。 另外’在泥土製射擊&場中，最好能回收散在泥土製乾 場之錯製散彈，從-起回收土與散彈之混合物中，以散彈 作為重比重物，以土作為中輕比重物，高精度筛選散彈。 [發明所欲解決之問題] 在上述廢棄物處理領域及泥土製射擊靶場等中，利用濕 式篩選裝置由混合物中篩選重比重物之際，為防止比重大 於1之中輕比重物混入重比重物中，有人採用如專利文獻丄 所載之情形-般，以上升水流推回沉降之中輕比重物而以 輸送帶加以撈起之方法，但被上升水流推回之重比重物也 有被輸送帶撈起之可能性，一旦被輸送帶撈起之重比重物 不忐回到水槽中，故有重比重物之回收率降低之問題。 因此，本發明之課題在於可防止中輕比重物混入重比重 物中而不致於降低重比重物之回收率。 【發明内容】 為解決上述課題，本發明係藉吸引管吸引藉上升流浮起 之中輕比重物而將其分離除去，並使進入吸引管之重比重 物藉自身重量沉下而回到水槽内。 如此一來，重比重物不會被吸引而回到水槽内，故只要 與以往同樣地回收沉降於該水槽内之重比重物即可。 作為本發明之構成，在水槽内投入被篩選之混合物，藉 其比重差篩選沉降於水槽底之前述混合物中之重比重物之 筛選裝置中，在前述水槽内設置產生上升流之上升流產生 115598.doc 1374058 管、及由向下開口向上方吸引藉該上升流而懸浮於水中之 懸浮物之吸引管’將該吸引管之吸引力設定成縱使前述重 比重物進入吸引管内，也可藉自身重量而沉下。 該吸引管之吸引力決定於吸引管之流通剖面積、吸引流 速、吸引泵之能力等，故依據實驗、實際操作等將該等適 宜地設定’縱使重比重物進入吸引管内，也可藉自身重量 而沉下。 例如’若使吸引管之吸引流速慢於上升流之流速，則含 重比重物之混合物會因上升流而上升，縱使該混合物被吸 入吸引管内’也由於吸引管内之流速較慢，混合物之中， 重比重物可藉自身重量向吸引管之下方沉下。即，由於吸 引流速慢於上升流之流速’故被強的上升流帶起之重比重 物在弱的吸引流下，不會被吸入而可藉自身重量向吸引管 之下方沉下，執行高精度之篩選。 作為使吸引流速慢於該上升流之流速之方策，例如，可 考慮使則述上升流產生管之開口面積小於由前述吸引管之 開口向上述上方吸引之吸引管之入口部分之流通剖面積 等。如此，使開口面積（流通剖面積）相異時，通常上升流 會由上升流產生管之開口強勁地流出，故含重比重物之混 合物雖有與該上升流同時上升而進入吸引管内之情形，但 在其吸引途中，因吸引流速慢於上升流速，故重比重物不 會進一步被吸入吸引管内而可藉自身重量向吸引管之下方 沉下。此流通剖面積差在相同流量流過上升流產生管與吸 引管之情形有效。 115598.doc 1374058 吸引管之入口部分之長度（參照圖2之L)係藉實驗等而考 慮流速等適宜地設定成進入此入口部分之重比重物藉自身 重量圓滑地沉下。 上升流產生管之開口只要是可在水槽内產生上升流之位 置，在水槽内之任何位置均可，但可依據實驗、實際操作 等，適宜地設定於可藉上升流而使投入水槽之混合物圓滑 地懸浮之位置。 上升流產生管之開口與吸引管之開口之關係位置係以可 圓滑地吸引藉上升流而在水中懸浮之懸浮物之方式，依據 實驗、實際相I作荨’將兩開口設定成具有適宜之距離、角 度而相向。此情形，最好是只可吸引除重比重物外之混合 物之全部與重比重物之一部分之關係位置。 在此等之構成中，可以是利用沿著前述混合物之流動方 向之例如垂直之隔板將前述水槽内隔成複數排，在此等被 區隔之各排分別設置前述吸引管。 如此一來，可藉隔板調整上升流，故可使中輕比重物穩 定地懸浮。 此時’預先用篩將投入前述水槽内之混合物尺寸分級， 將此等被尺寸分級之混合物分別投入前述被區隔之各排， 藉此可提高以特定比重為劃分點之篩選精度。即，若混合 物之大小相同，則該混合物由上升流受到之浮力大致相 等’藉由比重差引起之自身重量沉下力之差，中輕比重物 容易上升，重比重物容易沉降。 又’愈是小尺寸之物受到之浮力愈小，但自身重量產生 115598.doc 1374058 之沉降力會大幅降低，故不施行尺寸分級時，小尺寸之重 比重物有與尺寸比其大而比重小之混合物同時被吸引管吸 引而被排出至外部之虞。 因此’若施行尺寸分級，則可 改變在各排之上升流之強 度，僅依比重之差異將夂尺+ 各尺寸之重比重物與中輕比重物分1374058 IX. Description of the Invention: [Technical Field to Which the Invention Is Applicable] The present invention relates to a wet type screening device for screening a mixture by a difference in specific gravity in a water tank. [Prior Art] As a screening device using a mixture of poor specific gravity, a wet type screening device that floats and settles a mixture by a specific gravity difference in a water tank is used in various fields. In the case of obtaining wood chips of papermaking materials, it is used in the field of separating the heavy specific gravity as a foreign matter from a mixture of heavy gravity materials such as gravel and iron sheets, and is effective for recovering wood of light specific gravity among the major Mi. In the water tank, a lifting conveyor belt is arranged in the water tank, and the water in the water tank is sucked by the back portion of the conveyor belt to supply the water to the lower portion of the vertical tank of the water tank where the heavy specific gravity is settled, so that the vertical flow is generated in the vertical cylinder, and the upward flow is pushed back in the vertical direction. The wood chips of the light specific gravity are settled in the cylinder, and they are listed by a conveyor belt (refer to Patent Document 1). Further, in the field of waste disposal, it is possible to recycle the aggregate of the heavy specific gravity having a specific gravity of 2.5 or more from the concrete of the construction waste. The recycled aggregate is mixed with plastic sheets, wood chips, and the like. In the plastic sheet of such a mixture, a light specific gravity such as a polypropylene resin or a polyethylene resin having a specific gravity smaller than 丨 and a specific gravity of more than 1 such as a vinyl chloride resin are mixed. Further, there is also a case where the wet wood chips have a specific gravity of more than 1 and a medium-weight specific gravity material is mixed therein. In the mixture of such medium and light specific gravity materials, when using the wet screening equipment H5598.doc to screen the aggregates, the light weight of the sediments will be mixed into the aggregates, resulting in deterioration of the selection accuracy of the aggregates. problem. In addition, in the soil shooting & field, it is best to recycle the scattered loose bombs scattered in the soil dry field, from the mixture of recycled soil and loose shots, using bulk shots as heavy specific gravity, with soil as the middle Lightweight material, high precision screening shotgun. [Problems to be Solved by the Invention] In the above-mentioned waste treatment field and the earth-based shooting range, etc., when a heavy-weight material is selected from the mixture by a wet screening device, in order to prevent the specific gravity from being more than 1 In the case of the case of the ascending water flow, the light weight of the sediment is pushed back by the conveyor belt, but the heavy weight which is pushed back by the rising water flow is also transported. With the possibility of picking up, once the heavy weight picked up by the conveyor belt does not return to the water tank, there is a problem that the recovery rate of the heavy specific gravity is lowered. Therefore, the object of the present invention is to prevent the medium and light specific gravity from being mixed into the heavy specific gravity without lowering the recovery rate of the heavy specific gravity. SUMMARY OF THE INVENTION In order to solve the above problems, the present invention uses a suction pipe to attract and remove a light weight material in an upward flow, and to remove the heavy specific gravity entering the suction pipe and return it to the sink by its own weight. Inside. As a result, the heavy specific gravity is not sucked and returned to the water tank, so that the heavy specific gravity deposited in the water tank can be recovered in the same manner as in the related art. According to the configuration of the present invention, the mixture to be sieved is placed in a water tank, and a screening device for screening a heavy specific gravity in the mixture of the bottom of the water tank by the difference in specific gravity is placed, and an upward flow generating an upward flow is generated in the water tank. 115598.doc 1374058 The tube and the suction pipe that sucks the suspended matter suspended in the water by the upward opening upwards to set the suction force of the suction pipe so that the heavy gravity enters the suction pipe, Sink down by your own weight. The attraction force of the suction pipe is determined by the cross-sectional area of the suction pipe, the suction flow rate, the ability to suck the pump, etc., so that it can be appropriately set according to experiments, actual operations, etc., even if the heavy specific gravity enters the suction pipe, it can also borrow itself. Sink down by weight. For example, if the suction flow rate of the suction pipe is slower than the flow rate of the upward flow, the mixture containing the heavy specific gravity will rise due to the upward flow, even if the mixture is sucked into the suction pipe, and the flow rate in the suction pipe is slow, and the mixture is in the mixture. The heavy specific gravity can sink below the suction pipe by its own weight. That is, since the suction flow rate is slower than the flow rate of the upward flow, the heavy specific gravity of the strong upflow is under a weak suction flow, and it can be sucked down by the weight of the suction pipe without being sucked, and high precision is performed. Screening. As a method of making the suction flow rate slower than the flow rate of the upward flow, for example, it is conceivable that the opening area of the upward flow generation pipe is smaller than the flow cross-sectional area of the inlet portion of the suction pipe that is attracted upward from the opening of the suction pipe. . When the opening area (flow cross-sectional area) is different, the upward flow usually flows out strongly from the opening of the upward flow generating pipe, so that the mixture containing the heavy specific gravity rises into the suction pipe simultaneously with the upward flow. However, during the attraction, since the suction flow rate is slower than the upward flow rate, the heavy specific gravity is not further sucked into the suction pipe and can be lowered below the suction pipe by its own weight. This flow cross-sectional area difference is effective in the case where the same flow rate flows through the upward flow generating tube and the suction tube. 115598.doc 1374058 The length of the inlet portion of the suction pipe (refer to L of Fig. 2) is determined by experiments or the like to appropriately set the weight of the heavy-weight material entering the inlet portion to smoothly sink by its own weight. The opening of the upflow generating tube may be any position in the water tank as long as it can generate an upward flow in the water tank, but may be appropriately set in a mixture which can be put into the water tank by an upward flow according to an experiment, an actual operation, or the like. Sleekly suspended position. The position of the relationship between the opening of the upflow generating tube and the opening of the suction tube is such that the two openings are set to be suitable according to the experiment and the actual phase I in a manner that can smoothly attract the suspended matter suspended in the water by the upward flow. Distance and angle are opposite each other. In this case, it is preferable to attract only the position of all of the mixture other than the heavy specific gravity to a part of the heavy specific gravity. In such a configuration, the water tank may be partitioned into a plurality of rows by, for example, a vertical partition along the flow direction of the mixture, and the suction pipes may be provided in each of the divided rows. In this way, the upward flow can be adjusted by the partition plate, so that the medium and light specific gravity can be stably suspended. At this time, the size of the mixture charged into the water tank is previously sieved, and the size-differentiated mixture is separately introduced into each of the divided rows, whereby the screening accuracy with a specific specific gravity as a division point can be improved. That is, if the size of the mixture is the same, the buoyancy of the mixture is substantially equal to the buoyancy of the ascending flow, and the difference in the weight drop caused by the difference in specific gravity is likely to increase, and the light-weight specific gravity tends to rise, and the heavy specific gravity is likely to settle. Moreover, the smaller the buoyancy is, the smaller the buoyancy is, but the sedimentation force of 115598.doc 1374058 will be greatly reduced. Therefore, when the size classification is not carried out, the heavy weight of the small size is larger than the size. The small mixture is simultaneously attracted to the suction tube and discharged to the outside. Therefore, if the size is graded, the strength of the upflow in each row can be changed, and only the weight of the weight + the weight of the medium and the light weight
離成沉降側與上升側，減少上M 枚夕上边尺寸差異引起之影響而提 高篩選精度。Separation into the sedimentation side and the rising side, reducing the influence of the difference in size on the upper side of the upper M, and improving the screening accuracy.
又，上升流固然亦可藉一條上升流產生管而產生，但可 在前述區隔之各排設置上升流產生管，或在每2個以上之 排設置上升流產生管。後者之情形，一條上升流產生管之 開口會面臨2個以上之排。Further, although the ascending flow may be generated by an upflow generating pipe, an upflow generating pipe may be provided in each of the aforementioned sections, or an upflow generating pipe may be provided in every two or more rows. In the latter case, an upflow generating tube opening faces more than two rows.
吸引管可向則述混合物之流動方向依序設置複數條。如 此來，使吸引管之吸引力向混合物之流動方向階段性地 提高（增強），即，使下游側之吸引管之吸引力高於混合物 流動之上游側，藉此可改變由各吸引管所吸引（捕捉）之物 之比重，而篩選捕捉比重相異之物。吸引管數可依欲捕捉 之比重差之物之數適宜地加以設定。 此時’對前述各吸引管分別設置上升流產生管，將其設 定成向混合物之流動方向依序增強該各上升流產生管之上 升流（依序加速上升流速）’藉此可配合所捕捉之物之比重 而施行圓滑之懸浮與吸引。 例如’設有2條上升流產生管之情形，以前側（混合物流 動之上游侧）之吸引管吸引比重大於1之塑膠等中輕比重 物’其次，以後側之吸引管吸引未被前側之吸引管吸引之 115598.doc 1374058 重比重物中骨材等比重較小之重比重物，藉此可篩選成未 被前後側之吸引管吸引之鐵、銅、鉛等金屬之比重非常大 之重比重物、未被後側之吸引管吸引之骨材等比重較小之 重比重物及未被前側之吸引管吸引之中輕比重物之3種 類。 又，即使不改變各吸引管之吸引力，也可藉後側之吸引 管吸弓丨未被前侧之吸引管吸引之懸浮物，故可提高前述筛 選精度。 另外，若對前述各吸引管分別設置上升流產生管，則可 使混合物圓滑地懸浮而送入各吸引管，故可更提高篩選精 度。 此等之情形，上升流產生管之開口與吸引管之開口之關 係位置亦係以不必盡量地吸引所要之比重之物而可圓滑地 吸引藉上升流而在水中懸浮之所要比重之懸浮物之方式， 依據實驗、實際操作等，將兩開口設定成具有適宜之距 離、角度而相向。 若使前述上升流產生管與吸引管之開口分別對前述混合 物之流動方向形成橫方向較長之長孔形狀（不僅橢圓形 狀，亦含矩形狀，參照圖14),則上升流在水槽内會變成 寬度狹窄之水流而產生明確的流動，且吸引流也會在其混 合物之流動方向變成寬度狹窄之水流，故其吸引作用也較 為確實。 該長孔之長度係依據混合物對流動方向之橫方向之長度 與水槽寬度適宜地設定。又，县 長孔之寬度也可考慮上升流 115598.doc •10- 1374058 之形成程度、吸引程度而適宜地加以設定。 • 在此等構成中，在前述水槽内之前述上升流產生管與吸 引管之間’向前述混合物之流動方向向下傾斜地設置下端 側作為排出端而開放之傾斜篩，將前述混合物投入此傾斜 筛之上端側，可使前述重比重物由前述下端側之排出端向 前述水槽底沉下。 如此一來’在傾斜篩上，以集團狀態沉下之混合物受到 ^ 上升流而一面被攪拌，一面浮起，故可圓滑地分離中輕比 重物’且重比重物直接在該篩上降下而沉下至水槽底。 即’只要可圓滑地分離中輕比重物與重比重物，且使上升 流碰到以該集團狀態沉下之混合物即可，故可減少其上升 流之量（水量）（可藉少量上升流有效地使混合物浮起）。 此時，將上升流產生管之開口在此傾斜篩之下方設置於 其傾斜方向之特定位置，例如排出端侧，則僅在水槽之一 P刀區域產生上升流，即可使中輕比重物懸浮於水面下， φ 且可減少上升流之水量。此情形，也可使上升流產生管開 口於傾斜篩下方之其他位置。 藉由對則述傾斜篩設置賦予振動之機構，可藉上升流確 實使沉降於篩上之甲輕比重物懸浮而選擇地被吸引至吸引 吕，進一步提高篩選精度。且也可防止篩之阻塞。 在前述傾斜篩之上端側設置被投入之混合物之儲存部， 藉此在至此健存部之間，藉自身重量差混合物使重比重物 偏向下側，使令輕比重物偏向上側後，向傾斜筛之上端側 移動’故可藉上升流圓滑地使偏向上側之中輕比重物懸浮 115598.doc 而容易被吸引管吸引。 此時，儲存部若連續於傾斜筛，則隨著該傾斜筛之振 動，儲存部也會振動，故到達該儲存部之混合物可藉該振 動，促進使前述重比重物偏向下側，使中輕比重物偏向上 側之作用。 [發明之效果] 如以上所述，本發明由於可使重比重物沉下至水槽底部 而不會被吸引，故可提高重比重物之回收率。 【實施方式】 以下，依據圖式，說明本發明之實施型態。圖丨至圖3係 表示第1實施型態。此篩選裝置i係使用於建築廢料之混凝 土所含之骨材之回收設備，用於除去混在骨材中之木片及 塑膠片。 如圖1所示，前述混凝土被碎裂機21碎裂而以手篩選方 式除去大型異物後，置於篩22中，除去尺寸2 mm程度以 下之微小異物，超過40 mm之大碎裂物送回碎裂機21再被 碎裂。40 mm以下尺寸之碎裂物以磁選機23除去鐵類後， 以磨碎機24研磨而除去附著於骨材之灰泥，以筛25分筛成 5種尺寸。 20〜28 mm、28〜40 mm之尺寸後，即可投入濕式筛選裝置 1。投入此濕式篩選裝置1之處理物為骨材中混入木片及塑 膠片之混合物D » 如圖2及圖3所示，前述濕式篩選裝置丨在橫長之平面視 115598.doc •12· 1374058 呈矩形狀之水槽2内上下移動自如地吊著橫長之上面開口 之平面視呈矩形狀之籃子3,此籃子3内被垂直之隔板4在 其寬度方向（圖3之左右方向）分隔成5排，可將被前述篩25 分篩成5種尺寸之混合物d由滑槽5投入此等各排中。 又’各隔板4之分隔位置可以改變，可依照混合物〇之各 尺寸之處理量而調整各排之寬度。 在籃子3之底部設有由投入混合物〇之供應端3a向他端側 之排出端3b向下傾斜之傾斜篩6，經由籃子3被振動發生機 構7對此傾斜篩6賦予振動力。此振動發生機構7係藉振動 傳達板7a作圓運動（參照圖2箭號）使與籃子3之接觸位置發 生變化’使籃子3上下移動而賦予振動力。 在前述隔板4所分隔之籃子3之各排中，設有在傾斜篩6 之傾斜途中由下方產生上升流之向上開口之上升流產生管 8、及吸引藉上升流在水中懸浮之水中懸浮物之向下開口 之吸引管9。上升流產生管8與吸引管9係在斜方向相對 向’兩者之開口 8a、9a間之距離係設定成不會使上升流衰 減之距離。又，在籃子3之排出端3b，傾斜篩6之下端側被 開放’在其外側之水面附近，設有可撈起水面上之浮起物 之輸送帶10，且在排出端3b側之水槽2之底部設有排出沉 下物之排出螺桿11。 由前述滑槽5被投入籃子3之各排之混合物D中，骨材等 之重比重物A可迅速沉降至傾斜篩6上，在傾斜篩6上向排 出端3b側下降移動後，由下端側開放之排出端3b向水槽2 之底部沉下而被旋轉之排出螺桿11篩選回收。一部分之重 H5598.doc 1374058 比重物A可在傾斜篩6上在下降移動中藉來自上升流產生管 8之上升流而懸浮於水中，但不會進入向吸引管9之斜上方 之上升流，而沉降於傾斜篩6上。 又，即使重比重物A進入水流而被吸引管9吸引，也由於 吸引管9向下開口而由其開口 9a向上方傾斜，故自身重量 產生之沉降力超過吸引產生之浮力（吸引力），故會再度沉 下於下方之傾斜篩6上。 又，吸引管9向上方之傾斜角度可加以調整，可調整是 否被吸引管9吸引之比重之境界。吸引管9向上方之傾斜角 度愈呈現緩傾斜，大比重之物愈會被吸引管9吸引。 又’上升流之流速與吸引管9内之流速在混合物之尺寸 愈大時’設定於愈大值。 另外’來自上升流產生管8之上升流與吸引管9之吸引流 可藉一個泵形成（參照圖5) ’或分別以個別之泵形成。此 際’該吸引管9之吸引力（吸引流速）係以縱使重比重物a進 入吸引管内’也可藉自身重量而沉下之方式適宜地設定吸 引管9之流通剖面積、泵之能力等，且配合此而適宜地設 定上升流產生管8之流通剖面積等。 前述被投入之混合物D所含之木片及塑膠片中比重大於1 之中輕比重物B緩慢沉降而在傾斜篩6上下降移動，在其途 中藉來自上升流產生管8之上升流而懸浮於水中，被吸引 管9吸引而排出於外部。又，比重小於1之輕比重物c浮起 於水面上向排出端3b侧移動，被輸送帶10撈起而被排出於 外部。 H5598.doc -14· 1374058 又’由於傾斜篩6被賦予振動，故即使中輕比重物B在比 重較大之重比重物A之下側，也會因振動而自然地變成上 侧，可藉上升流而確實懸浮。又，傾斜篩6也不會發生阻 圖4係表示第2實施型態。此篩選裝置i亦係由以骨材為 主之前述混合物D中篩選骨材，與第丨實施型態之情形同樣 地，在吊在橫長之水槽2内之橫長之籃子3底部設有傾斜篩 6,在傾斜篩6之傾斜途中，設有由下方產生上升流之上升 流產生管8、與吸引藉上升流而懸浮於水面下之懸浮物之 吸引管9。 此籃子3並未被隔板分隔’由滑槽5投入供應端3a之混合 物並未依照大小別被分類，重比重物A沉降於傾斜篩6上而 下降移動後，由下端側之排出端3b向水槽2之底部沉下， 而被排出螺桿11篩選回收。又，中輕比重物B沉降於傾斜 篩6上而下降移動，在其途甲藉來自上升流產生管8之上升 流而懸浮於水面下，被吸引管9吸引而排出於外部，輕比 重物c浮起於水面上向排出端31)側移動，被輸送帶1〇撈起 而被排出於外部。 又’即使重比重物A進入水流而被吸引管9吸引，也由於 自身重量產生之沉下力超過吸引產生之浮力（吸引力），而 再度沉下於下方之傾斜篩6上。 本實施型態也可適宜地採用振動發生機構7。 圖5係表示第3實施型態。此篩選裝置丨並無前述籃子3， 沿著由横長之水槽2之供應端2a側向排出端2b側向下傾斜 115598.doc 15 1374058 之底部，以覆蓋大致底部之全面方式排列著複數之上升流 產生管8。在水面下，與第2實施型態同樣之吸引管9向下 開口，藉泵12將水槽2之水吸引至吸引管9中，被吸引之水 通過過濾器13而除去中輕比重物B後，被循環使用，再由 各上升流產生管8被喷出而在水槽2内產生上升流。又，在 排出端2b之水面附近，設有撈起水面上之浮起物之輸送帶 1〇 ’在排出端2b側之底部設有排出螺桿11。 在本實施型態中，由滑槽5被投入水槽2之供應端2a之混 合物D中，沉降之重比重物a向排出端2b側向下傾斜之水 槽2之底部下降移動而被排出螺桿丨丨篩選回收，緩慢沉降 之中輕比重物B藉來自各上升流產生管8之上升流而懸浮於 水中，被吸引管9吸引而排出於外部。又，浮起於水面上 之輕比重物C被輸送帶1〇撈起而被排出於外部。另外，即 使重比重物A進入水流而被吸引管9吸引，也由於自身重量 產生之儿下力超過吸引產生之浮力（吸引力），而再度沉下 於水槽2之底面上，藉其傾斜而向排出螺桿^方向移動。 圖6係表示第4實施型態，此篩選裝置丨係沿著水槽2之平 面視之混合物D之流動方向依序設有複數之吸引管9，對各 吸引管9l、92、…分別設置上升流產生管8!、82.....其 各吸引管9丨、92、…之吸引力及上升流產生管8之上升力向 前述流動方向依序增強。 在本實施型態中，由於各吸引管9l、…之流通剖面 積相同且各上升流產生管8丨、82、…之流通剖面積（開口 面積)相同’故可藉改變其吸引流速、上升(喷出)流速而使 115598.doc -16 - 1374058 吸引力、上升力發生變化β 本實施型態係以吸引管9〗吸引排出藉來自上升流產生管 8丨之上升流而懸浮於水中之中輕比重物Β，骨材等比重較 小之重比重物Α，藉來自第2之上升流產生管82之強上升流 而懸浮於水中，被強吸引力之第2之吸引管92吸引排出， 另外，比該重比重物Α·略重之重比重物Α"藉來自第3之上 升抓產生管8S之強上升流而懸浮於水中，被強吸引力之第 3之及引管\吸引排出。此時，即使重比重物a、A,、a"進 入水机而被吸引管\t、…吸引，也可依照該吸引管 1、％、…之吸引力而直接被吸引，或由於自身重量產生 之沉下力超過吸引產生之浮力（吸引力），而再度沉下於下 方之傾斜篩6上，再沉下於水槽2之下端側之排出端几。 如此，施行3階段之吸引篩選，可使重比重物a按比重別 被篩選（Α· ' A")，並僅使鋼鐵、銅、鉛等金屬比重非常大 之重比重物A由水槽2之下端側之排出端2b沉下於排出螺桿 11中被篩選。 在本實施型態中，可適宜地採用籃子3、傾斜篩6、振動 發生機構7等6又，可依照混合物D之篩選數，適宜地設定 吸引管9及上升流產生管8之數。另外，如同圖短劃線所 示’設置傾斜篩6時，如圖4所示，可使混合物d在其上移 動’故前述篩選作用更為確實。 圖7係表示第5實施型態，此篩選裝置1係將水槽2形成縱 長較深’可由插入於中間之深度之水中之滑槽5投入混合 物D。在滑槽5之下方以覆蓋水槽2之大致全剖面方式設有 115598.doc -17- 複數之上升流產生管8，在滑槽5之上方設有向下開口之吸 引s9,與第3實施型態之情形同樣地，藉泵12將水槽2之 水吸引至吸引管9中，被吸引之水通過過濾器13而除去中 輕比重物B後，被循環使用，再由各上升流產生管8被喷出 而在水槽2内產生上升流。又，在水面附近，設有榜起水 面上之浮起物之輸送帶1〇，在底部設有排出螺桿u。 在本實施型態中，由滑槽5被投入水中之混合物!）中，沉 降於水槽2之底部之重比重物a被排出螺桿丨丨篩選回收，中 輕比重物B藉來自各上升流產生管8<上升流而懸浮於水 中’被吸引管9吸引而排出於外部。浮起於水面上之輕比 重物C被輸送帶1〇撈起而被排出於外部。又，即使重比重 物A進入水流而被吸引管9吸引，也由於自身重量產生之沉 降力超過吸引產生之浮力（吸引力）’而再度向下方沉下。 圖8及圖9係表示第6實施型態，此篩選裝置1與第1實施 型態之情形同樣地’吊在橫長之水槽2内之橫長之籃子3被 隔板4分隔成5排，可將分篩成5種尺寸之混合物d由滑槽5 投入此等各排中。 在被投入混合物D之籃子3之供應端3a側，設有有底之儲 存部14，在此儲存部14之底部，與第i實施型態之情形同 樣地，連接（連續）有向排出端3b側向下傾斜之傾斜篩6，藉 安裝於籃子3之振動發生機構7對儲存部14之底部與傾斜筛 6賦予振動力。 前述儲存部14之底部向傾斜篩6略微下降傾斜，在其下 降傾斜端側，設有在水面部份貫通水槽2與籃子3之側壁及 115598.doc 各排之隔板4之排出螺桿15，由開設於各排内之其開口 1 5a ’將浮起於各排之水面上之輕比重物C排出至外部。在 排出螺桿15之後面側設有攔阻浮起於水面上之輕比重物€ 之低壩16。 又’前述振動發生機構7係在排出螺桿15之上方被安裝 於藍子3之側壁’排出螺桿15之貫通之水槽2之側壁部分係 以軟蓋1 7連接於周圍之側壁’以供吸收經由籃子3之側壁 與排出螺桿15傳達之振動。 又，在前述傾斜筛6之傾斜途中，在籃子3之各排設有由 下方產生上升流之上升流產生管8、與吸引藉上升流而懸 浮於水中之水中懸浮物之吸引管9，使各開口 8a、9a在遍 及傾斜篩6之寬度方向大略全域上下相向。各上升流產生 管8與各吸引管9係依照各排被分割配置，各排之各開口 8a、9a呈矩形剖面之長孔形狀，各吸引管9之開口 9&與其 入口部份之剖面積形成大於各上升流產生管8之開口 8&之 面積。 又’在排出端3b側之水槽2之底部與第1實施型態之情形 同樣地，設有排出沉下物之排出螺桿丨上。 本實施型態係利用賦予儲存部14之底部之振動，使由滑 槽5投入於各排之儲存部14之被尺寸分級之各混合物d中之 重比重物A偏向下側移動’使中輕比重物b偏向上側移 動。 而，在一直保持該狀態下，通過低壩16之下側向傾斜篩 6之上端側移動，在傾斜篩6上偏向上侧之中輕比重物丑也 115598.doc •19- 1374058 藉來自各上升流產生管8之上升流而懸浮於水中，被各吸 引管9吸引而排出於外部。 在傾斜篩6上一面偏向下側一面移動之重比重物A即使藉 上升流而進入吸引管9中，也會再度沉下於傾斜篩6上而由 傾斜篩6之下端側之排出端3b沉下至水槽2底部之排出螺桿 11中而由該排出口 lib被篩選回收。上升流之流速與吸引 管9内之流速例如在最小尺寸之排中，設定於秒速〇7出， 在最大尺寸之排中，設定於秒速18m。 如此，依照混合物D之尺寸設定吸引速度，故即使重比 重物A被各吸引管9所吸引，也由於超過特定之比重，而會 再度沉下於下方之篩6上。 又’被尺寸分級之各排之混合物中之輕比重物C會浮起 於水面上’進入旋轉之排出螺桿15之各開口 15&而由其排 出口 15b—起被排出於外部。 圖10係表示第6實施型態之第i變形例。此第1變形例係 在比設於前述傾斜筛6之傾斜途中之上升流產生管8與吸引 管9更靠近籃子3之排出端3b側，設置產生比上升流產生管 8ι更強之上升流之第2上升流產生管82、與吸引管\更強之 吸引力之第2吸引管9Z ’而使在傾斜篩6之下侧與上側開口 8a、9a彼此相向。 在此第1變形例中’藉吸引管91吸引排出藉來自上升流 產生管8ι之上升流懸浮於水中之中輕比重物B，且骨材等 比重較小之重比重物A，藉來自第2之上升流產生管82之強 上升流而懸浮於水中，被強吸引力之第2之吸引管92吸引 115598.doc •20· 1374058 排出。此時，重比重物A、Αι進入水流而被吸引管9ι、心 吸引時，在刖側之吸引管9丨，兩重比重物A、均由於自 身重量產生之沉下力超過吸引產生之浮力（吸引力），而再 度沉下於下方之傾斜筛6上，在後側之吸引管92，鐵、 銅、錯等重比重物A均由於自身重量產生之沉下力超過吸 引產生之洋力，而再度沉下於下方之傾斜篩6上，再沉下 於下方之傾斜篩6上，骨材等比重較小之重比重物Αι直接 被吸引而被導出至外部。 因此’施行2階段之吸引篩選，可使重比重物a按比重別 被篩選（A、A’），並僅使鐵、銅、鉛等金屬比重非常大之 重比重物A由傾斜篩6之下端側之排出端3b沉下於排出螺桿 11中被篩選。 圖11係表示第6實施型態之第2變形例。此第2變形例係 在設於前述水槽2之排出端侧之底部之排出螺桿丨丨之前面 側設有第2排出螺桿lla，並設有產生由水槽2之排出端側 向前方之水平流之喷嘴18。 因此’由傾斜篩6之下端側之排出端3b沉下之重比重物A 中之骨材等比重較小之重比重物Α·會受到來自之喷嘴18之 水平流之影響而沉下至前方之第2排出螺桿丨丨a，僅使鐵、 銅、鉛等金屬比重非常大之重比重物A直接沉下於排出螺 桿11中被筛選。 在圖10、圖11之變形例中，上升流產生管8與吸引管9之 數可任意設定。 圖12、圖13係表示第7、第8實施型態，此兩實施型態係 115598.doc -21· 1374058 圖7所示之第5實施型態之第i、第2變形例，圖12之實施型 態係5又有吸引官9共2條吸引管9丨、92，圖13之實施型態係 再設有上升流產生管8共2條上升流產生管h、82，藉使兩 吸引管9!、h之吸引力中上游側之吸引管9ι弱於下游側之 吸引管9Z ’使兩上升流產生管8ι、82之喷出力之上游側之 上升流產生管弱於下游側之上升流產生管&，即可與圖 10之實施型態同樣地，施行重比重物A、八，之篩選。此 時’即使重比重物A、A，進入水流被吸引管9l、92吸引， 也可依照該吸引管9!、t之吸引力而直接被吸引，或由於 自身重量產生之沉下力超過吸引產生之浮力（吸引力），而 再度沉下於下方。 包含前述各實施型態，吸引管9之入口部分之形狀可形 成圖14所示之態樣等’另外，上升流產生管8之入口部分 之形狀也可形成同樣形狀。在此實施型態中，上升流產生 管8與吸引管9之數可任意設定。 在上述各實施型態中’也可使重比重物A由傾斜篩6之篩 網沉下，且可適宜地將各實施型態中沒有之構件採用於沒 有該構件之實施型態。例如，可在圖2、圖4、圖6之各實 施型態中適宜地採用儲存部14» 在各實施型態中’雖說明建築廢料之混凝土骨材之篩選 之情形，但在由上述造紙用木材屑分離除去砂礫等之情 形’或在泥土製射擊靶場等之散彈之筛選等之情形也可採 用此各實施型態，而可獲得其篩選精度較高之效果。該等 之情形，上升流產生管8與吸引管9之數、傾斜篩6之有無 H5598.doc •22· 1374058 等可依照對象㈣物適宜地加以設定。例如，散彈等之情 形，因對象筛選物只有一種’故上升流產生管8與 : 之數只要一個即已充分。 【圖式簡單說明】 圖1係表示由建築廢料分離投入^實施型態之筛選裝置 之混合物之步驟之步驟圖。 圖2係表示第丨實施型態之篩選裝置之縱剖面圖。 圖3係沿著圖2之m_in線之剖面圖。 圖4係表示第2實施型態之縱剖面圖。 圖5係表示第3實施型態之縱剖面圖。 圖6係表示第4實施型態之縱剖面圖。 圖7係表示第5實施型態之縱剖面圖。 圖8係表示第6實施型態之縱剖面圖。 圖9係圖8之平面圖。 圖10係表示第6實施型態之第i變形例之局部省略縱剖面 圖。 圖11係表示第6實施型態之第2變形例之局部省略縱剖面 圖。 圖12係表示第7實施型態之縱剖面圖。 圖13係表示第8實施型態之縱剖面圖。 圖14係吸引管之一例之局部立體圖。 【主要元件符號說明】 a、a’、a" 重比重物 B 中輕比重物 115598.doc -23- 1374058The suction tube can sequentially set a plurality of strips in the flow direction of the mixture. In this way, the suction force of the suction pipe is gradually increased (enhanced) toward the flow direction of the mixture, that is, the suction force of the suction pipe on the downstream side is made higher than the upstream side of the mixture flow, whereby the suction pipe can be changed by each suction pipe The proportion of the objects that attract (capture), and the screening to capture things of different proportions. The number of suction tubes can be appropriately set depending on the number of the difference in the specific gravity to be captured. At this time, each of the suction pipes is provided with an upward flow generation pipe, and is set to sequentially increase the upward flow of the upward flow generation pipes (sequential acceleration flow rate) in the flow direction of the mixture. The sleek suspension and attraction are carried out by the proportion of the objects. For example, in the case where two upflow generating tubes are provided, the suction tube on the front side (upstream side of the mixture flow) attracts light weights such as plastics having a specific gravity greater than 1, and secondly, the suction tube suction on the rear side is not attracted to the front side. Pipe attraction 115598.doc 1374058 Heavy weight in the heavy specific gravity, such as aggregates with a small specific gravity, can be screened into a large proportion of iron, copper, lead and other metals that are not attracted by the suction pipe on the front and rear sides. There are three types of heavy-weight specific materials such as aggregates that are not attracted by the suction pipe on the rear side and those that are not attracted by the suction pipe on the front side. Further, even if the suction force of each of the suction pipes is not changed, the suction of the suction pipe at the rear side can be sucked by the suction pipe which is not attracted by the suction pipe on the front side, so that the above-mentioned screening accuracy can be improved. Further, when the upflow generating tubes are provided for the respective suction tubes, the mixture can be smoothly floated and sent to the respective suction tubes, so that the screening accuracy can be further improved. In such a case, the position of the opening of the upflow generating tube and the opening of the suction tube is such that the suspended matter of the desired specific gravity suspended in the water can be smoothly attracted by not having to attract the desired specific gravity as much as possible. Method, according to experiments, actual operations, etc., the two openings are set to have a suitable distance, angle and face. When the upstream flow generating tube and the opening of the suction tube are formed in a long hole shape in which the flow direction of the mixture is long in the lateral direction (not only an elliptical shape but also a rectangular shape, see FIG. 14), the upward flow will be in the water tank. It becomes a clear flow of water with a narrow width, and the suction flow also becomes a narrow flow of water in the flow direction of the mixture, so the suction effect is also relatively reliable. The length of the long hole is appropriately set depending on the length of the mixture in the lateral direction of the flow direction and the width of the water tank. In addition, the width of the county hole can be appropriately set in consideration of the degree of formation and the degree of attraction of the upward flow 115598.doc •10-1374058. In the above-described configuration, the inclined screen which is opened at the lower end side as a discharge end is provided between the upstream flow generating pipe and the suction pipe in the water tank, and the mixture is inserted into the inclined screen. On the upper end side of the sieve, the heavy specific gravity can be caused to sink from the discharge end of the lower end side toward the bottom of the water tank. In this way, on the inclined screen, the mixture that has fallen in the group state is stirred while being stirred up, and floats up, so that the light weight material can be smoothly separated and the heavy specific gravity is directly lowered on the sieve. Sink down to the bottom of the sink. That is, as long as the light weight and heavy specific gravity can be smoothly separated, and the upward flow can be brought into contact with the mixture that has settled in the group state, the amount of upflow (water amount) can be reduced (a small upward flow can be borrowed) Effectively float the mixture). At this time, the opening of the upward flow generating tube is disposed at a specific position in the oblique direction below the inclined screen. For example, the discharge end side generates an upward flow only in the P-knife region of the water tank, so that the medium-weight specific gravity can be obtained. Suspended below the surface of the water, φ can reduce the amount of water in the upflow. In this case, the upflow generating tube can also be opened at other locations below the inclined screen. By providing the mechanism for imparting vibration to the inclined screen, it is possible to suspend the light-weight specific gravity deposited on the sieve by the upward flow and selectively attract it to the suction, thereby further improving the screening precision. It also prevents clogging of the screen. The storage portion of the mixture to be fed is disposed on the upper end side of the inclined screen, whereby the heavy specific gravity is biased to the lower side by the mixture of the weight difference between the remaining portions, so that the light specific gravity is biased to the upper side and then tilted. The upper end side of the screen moves. Therefore, it is easy to be attracted by the suction tube by smoothly raising the light weight material 115598.doc in the upper side. At this time, if the storage portion is continuous with the inclined sieve, the storage portion vibrates according to the vibration of the inclined sieve. Therefore, the mixture reaching the storage portion can be used to bias the heavy specific gravity to the lower side. The light specific gravity is biased to the upper side. [Effect of the Invention] As described above, according to the present invention, since the heavy specific gravity can be suspended to the bottom of the water tank without being attracted, the recovery rate of the heavy specific gravity can be improved. [Embodiment] Hereinafter, embodiments of the present invention will be described based on the drawings. Fig. 3 to Fig. 3 show the first embodiment. This screening device i is a recycling device for aggregates contained in concrete for construction waste, and is used for removing wood chips and plastic sheets mixed in the aggregate. As shown in Fig. 1, the concrete is broken by the chip breaker 21, and large foreign matter is removed by hand screening, and then placed in the sieve 22 to remove minute foreign matter having a size of less than 2 mm, and a large fragment exceeding 40 mm is sent. The crusher 21 is then broken. The crushed material having a size of 40 mm or less is removed by the magnetic separator 23, and then ground by a grinder 24 to remove the mortar adhered to the aggregate, and sieved into five sizes by sieve 25. After 20~28 mm, 28~40 mm size, the wet screening device 1 can be put into operation. The processed material introduced into the wet screening device 1 is a mixture of wood chips and plastic sheets mixed into the aggregate material. D » As shown in Fig. 2 and Fig. 3, the wet screening device is in the horizontally long plane view 115598.doc •12· 1374058 The rectangular shape of the water tank 2 is a basket 3 having a rectangular shape in a plane in which the horizontal opening is vertically moved upward and downward, and the vertical partition 4 in the basket 3 is in the width direction (the left and right direction of FIG. 3). Divided into 5 rows, a mixture d which is sieved into the above-mentioned sieves 25 into five sizes can be fed into the rows by the chute 5. Further, the separation position of each of the separators 4 can be changed, and the width of each row can be adjusted in accordance with the throughput of each size of the mixture. At the bottom of the basket 3, there is provided an inclined screen 6 which is inclined downward from the supply end 3a of the input mixture crucible to the discharge end 3b of the other end side, and the vibrating force is imparted to the inclined screen 6 by the vibration generating mechanism 7 via the basket 3. This vibration generating mechanism 7 performs a circular motion by moving the vibration transmission plate 7a (see the arrow of Fig. 2) to change the position of contact with the basket 3, and moves the basket 3 up and down to impart a vibration force. In each of the rows of the baskets 3 partitioned by the partition plate 4, an upward flow generating pipe 8 which is upwardly opened by an upward flow in the middle of the inclined screen 6 is provided, and a suction and upward flow is suspended in the water suspended in the water. The suction tube 9 is opened downward. The distance between the upward flow generating tube 8 and the suction tube 9 in the oblique direction opposite to the opening 8a, 9a is set to a distance that does not attenuate the upward flow. Further, at the discharge end 3b of the basket 3, the lower end side of the inclined screen 6 is opened 'in the vicinity of the water surface on the outer side thereof, and the conveyor belt 10 which can lift the floating material on the water surface and the water tank on the discharge end 3b side are provided. The bottom of 2 is provided with a discharge screw 11 for discharging the sink. The above-mentioned chute 5 is put into the mixture D of each row of the basket 3, and the heavy specific gravity A of the aggregate or the like can be quickly settled onto the inclined screen 6, and the lower side is moved downward on the inclined screen 6 toward the discharge end 3b side. The side open discharge end 3b sinks to the bottom of the water tank 2 and is filtered and recovered by the rotating discharge screw 11. Part of the weight H5598.doc 1374058 The specific gravity A can be suspended in the water by the upward flow from the upward flow generating tube 8 in the descending movement on the inclined screen 6, but does not enter the upward flow obliquely above the suction pipe 9, It settles on the inclined screen 6. Further, even if the heavy-weight material A enters the water flow and is sucked by the suction pipe 9, the suction pipe 9 is inclined downward by the opening 9a, so that the sedimentation force of the self-weight exceeds the buoyancy (attraction force) generated by the suction. Therefore, it will sink again on the inclined screen 6 below. Further, the inclination angle of the suction pipe 9 upward can be adjusted, and the boundary of the specific gravity attracted by the suction pipe 9 can be adjusted. The inclination angle of the suction pipe 9 upward is more gently inclined, and the material having a large specific gravity is attracted by the suction pipe 9. Further, the flow rate of the ascending flow and the flow rate in the suction pipe 9 are set to be larger as the size of the mixture is larger. Further, the suction flow from the upward flow generating pipe 8 and the suction flow of the suction pipe 9 may be formed by one pump (refer to Fig. 5) or separately by individual pumps. In this case, the attraction force (suction flow rate) of the suction pipe 9 is such that the heavy-weight material a enters the suction pipe evenly, and the flow cross-sectional area of the suction pipe 9 and the pump capacity can be appropriately set so as to sink by its own weight. In addition, the flow cross-sectional area of the upward flow generating tube 8 and the like are appropriately set in accordance with this. The specific gravity of the wood chips and the plastic sheets contained in the mixture D to be charged is greater than 1 and the light specific gravity material B gradually settles and moves downward on the inclined screen 6, and is suspended by the upward flow from the upward flow generating tube 8 on the way. In the water, it is sucked by the suction pipe 9 and discharged to the outside. Further, the light weight material c having a specific gravity of less than 1 floats on the water surface and moves toward the discharge end 3b side, and is picked up by the conveyor belt 10 to be discharged to the outside. H5598.doc -14· 1374058 In addition, since the slanting screen 6 is vibrated, even if the medium-weight specific gravity material B is on the lower side of the heavy specific gravity material A having a large specific gravity, it will naturally become the upper side due to vibration. Upstream and indeed suspended. Further, the inclined screen 6 does not cause an obstacle. Fig. 4 shows a second embodiment. This screening device i also screens the aggregates from the above-mentioned mixture D which is mainly composed of aggregates, and is provided at the bottom of the horizontally long basket 3 suspended in the horizontally long water tank 2 as in the case of the third embodiment. The inclined screen 6 is provided with an upward flow generating pipe 8 that generates an upward flow from the lower side and a suction pipe 9 that attracts the suspended matter suspended under the water surface by the upward flow. The basket 3 is not separated by the partitions. The mixture which is fed into the supply end 3a by the chute 5 is not classified according to the size. The heavy specific gravity A settles on the inclined screen 6 and moves downward, and the discharge end 3b from the lower end side It sinks to the bottom of the water tank 2, and is collected and recovered by the discharge screw 11. Further, the medium-light specific gravity material B settles on the inclined screen 6 and moves downward, and the carrier is suspended by the upward flow from the upward flow generating tube 8 and suspended under the water surface, and is sucked by the suction pipe 9 to be discharged to the outside. c floats on the water surface and moves toward the discharge end 31) side, and is picked up by the conveyor belt 1 to be discharged to the outside. Further, even if the heavy specific gravity material A enters the water flow and is sucked by the suction pipe 9, the sinking force due to its own weight exceeds the buoyancy (attraction force) generated by the suction, and is again lowered on the inclined screen 6 below. The vibration generating mechanism 7 can also be suitably employed in the present embodiment. Fig. 5 shows a third embodiment. The screening device does not have the aforementioned basket 3, and is inclined downwardly along the side of the lateral end of the supply end 2a of the horizontally long water tank 2 toward the discharge end 2b side, 115598.doc 15 1374058, and is arranged in a comprehensive manner covering the substantially bottom portion. The flow produces a tube 8. Under the water surface, the suction pipe 9 similar to the second embodiment is opened downward, and the water of the water tank 2 is sucked into the suction pipe 9 by the pump 12, and the sucked water passes through the filter 13 to remove the light weight specific gravity B. It is recycled, and each of the upward flow generating tubes 8 is ejected to generate an upward flow in the water tank 2. Further, in the vicinity of the water surface of the discharge end 2b, a conveyor belt 1?' for lifting the floating surface on the water surface is provided at the bottom of the discharge end 2b side. In the present embodiment, the chute 5 is put into the mixture D of the supply end 2a of the water tank 2, and the settled heavy specific gravity a is lowered toward the bottom of the water tank 2 which is inclined downward toward the discharge end 2b side to be discharged.丨 Screening and recovery, and the light weight material B is suspended in the water by the upward flow from each of the upflow generating tubes 8 in the slow sedimentation, and is sucked by the suction pipe 9 and discharged to the outside. Further, the light weight material C floating on the water surface is picked up by the conveyor belt 1 and discharged to the outside. Further, even if the heavy specific gravity material A enters the water flow and is sucked by the suction pipe 9, the lower force due to its own weight exceeds the buoyancy (attractive force) generated by the suction, and sinks again on the bottom surface of the water tank 2, by which it is inclined. Move toward the discharge screw ^. Fig. 6 is a view showing a fourth embodiment in which a plurality of suction pipes 9 are sequentially provided along the flow direction of the mixture D viewed in the plane of the water tank 2, and the suction pipes 9l, 92, ... are respectively provided with rise. The flow generating tubes 8!, 82.....the suction forces of the respective suction tubes 9丨, 92, . . . and the upward force of the upward flow generating tubes 8 are sequentially increased in the flow direction. In the present embodiment, since the flow cross-sectional areas of the respective suction pipes 911, ... are the same and the flow cross-sectional areas (opening areas) of the respective upward flow generating pipes 8 丨, 82, ... are the same, it is possible to change the suction flow rate and rise. (spraying) the flow rate to make 115598.doc -16 - 1374058 attractive, the rising force changes β. This embodiment is sucked and discharged in the water by the suction pipe 9 The medium-light specific gravity material, the heavy-weight material having a small specific gravity such as the aggregate, is suspended in the water by the strong upward flow from the second upflow generating pipe 82, and is sucked and discharged by the second attracting pipe 92 of the strong attraction. In addition, it is slightly larger than the heavy-weight material Α············································· discharge. At this time, even if the heavy-weight materials a, A, and a" enter the water machine and are attracted by the suction pipes \t, ..., they can be directly attracted according to the attraction of the suction pipes 1, %, ..., or due to their own weight. The resulting sinking force exceeds the buoyancy (attraction) generated by the suction, and is again submerged on the inclined screen 6 below, and then sinks to the discharge end of the lower end side of the water tank 2. In this way, the three-stage adsorption screening can be performed, so that the heavy specific gravity a can be screened according to the specific gravity (Α· 'A"), and only the heavy specific gravity of the metal such as steel, copper, lead, etc. The discharge end 2b of the lower end side is dropped in the discharge screw 11 to be screened. In the present embodiment, the basket 3, the inclined screen 6, the vibration generating mechanism 7, and the like 6 can be suitably used, and the number of the suction pipe 9 and the upward flow generating pipe 8 can be appropriately set in accordance with the number of screenings of the mixture D. Further, when the inclined screen 6 is provided as shown by the dashed line, as shown in Fig. 4, the mixture d can be moved thereon, so that the above-described screening action is more sure. Fig. 7 is a view showing a fifth embodiment in which the screening apparatus 1 is formed such that the water tank 2 is formed to be deeper and deeper into the mixture D by the chute 5 which is inserted into the water in the middle. A 115598.doc -17-plural upflow generating tube 8 is provided below the chute 5 in a substantially full cross-section of the water tank 2, and a downwardly opening suction s9 is provided above the chute 5, and the third embodiment is provided. In the same manner, the water of the water tank 2 is sucked into the suction pipe 9 by the pump 12, and the sucked water passes through the filter 13 to remove the light weight specific gravity B, and is recycled, and the pipe is generated by each upward flow. 8 is ejected to generate an upward flow in the water tank 2. Further, in the vicinity of the water surface, a conveyor belt for floating objects on the water surface is provided, and a discharge screw u is provided at the bottom. In the present embodiment, in the mixture in which the chute 5 is put into the water!), the heavy specific gravity a which settles at the bottom of the water tank 2 is collected and recovered by the discharge screw, and the medium-weight specific gravity B is generated by the respective upward flow. The tube 8 <the upward flow and suspended in the water' is sucked by the suction tube 9 and discharged to the outside. The light weight C that floats on the water surface is picked up by the conveyor belt and discharged to the outside. Further, even if the heavy specific gravity A enters the water flow and is sucked by the suction pipe 9, the sinking force due to its own weight exceeds the buoyancy (attraction force) generated by the suction, and falls down again. Figs. 8 and 9 show a sixth embodiment. The screening apparatus 1 is similarly to the first embodiment. The horizontally long basket 3 suspended in the horizontally long water tank 2 is divided into five rows by the partition plate 4. The mixture d, which is sieved into five sizes, can be fed into the rows by the chute 5. On the side of the supply end 3a of the basket 3 to which the mixture D is placed, a bottomed storage portion 14 is provided, and at the bottom of the storage portion 14, as in the case of the i-th embodiment, the (continuous) directed discharge end is connected The inclined screen 6 which is inclined downward on the 3b side is given a vibration force to the bottom of the storage portion 14 and the inclined screen 6 by the vibration generating mechanism 7 attached to the basket 3. The bottom of the storage portion 14 is slightly inclined downward toward the inclined screen 6, and on the side of the descending inclined end thereof, a discharge screw 15 which penetrates the side wall of the water tank 2 and the basket 3 and the partition plate 4 of each row of 115598.doc on the water surface portion is provided. The light specific gravity C that floats on the water surface of each row is discharged to the outside by the opening 15a' which is opened in each row. After the discharge screw 15, the surface side is provided with a low dam 16 that blocks the light weight material floating on the water surface. Further, the vibration generating mechanism 7 is attached to the side wall of the side wall of the blue sheet 3 above the discharge screw 15 and the side wall portion of the water tank 2 through which the discharge screw 15 passes is connected with a soft cover 17 to the side wall of the periphery for absorption through the basket. The side wall of 3 and the vibration transmitted by the discharge screw 15. Further, in the middle of the inclined screen 6, the upflow generating pipe 8 which generates the upward flow from the lower side and the suction pipe 9 which absorbs the suspended matter suspended in the water by the upward flow are provided in each row of the basket 3. Each of the openings 8a and 9a faces substantially vertically in the width direction of the inclined screen 6. Each of the upward flow generating tubes 8 and the respective suction tubes 9 are arranged in accordance with the respective rows, and the openings 8a and 9a of the respective rows have a long hole shape of a rectangular cross section, and the opening 9& of each suction tube 9 and the sectional area of the inlet portion thereof An area larger than the opening 8& of each of the upflow generating tubes 8 is formed. Further, in the bottom portion of the water tank 2 on the discharge end 3b side, in the same manner as in the first embodiment, the discharge screw 排出 for discharging the sinking object is provided. In the present embodiment, the vibration of the bottom portion of the storage portion 14 is used to shift the heavy specific gravity A of the size-divided mixture d which is introduced into the storage portion 14 of each row by the chute 5 to the lower side. The specific gravity b moves to the upper side. However, while maintaining this state, the lower side of the lower dam 16 is moved to the upper end side of the inclined screen 6, and the light weight of the inclined screen 6 is upward and the upper side is also 115598.doc •19- 1374058 The upward flow of the upward flow generating tube 8 is suspended in the water, and is sucked by the respective suction tubes 9 and discharged to the outside. The heavy specific gravity A moving on the side of the inclined screen 6 while being inclined to the lower side enters the suction pipe 9 by the upward flow, and is again sunk on the inclined screen 6 and is sunk by the discharge end 3b on the lower end side of the inclined screen 6. It is descended to the discharge screw 11 at the bottom of the water tank 2 and is collected and recovered by the discharge port lib. The flow rate of the ascending flow and the flow rate in the suction pipe 9, for example, in the row of the minimum size, are set at the second speed 〇7, and in the row of the largest size, set at the second speed of 18 m. Thus, the suction speed is set in accordance with the size of the mixture D. Therefore, even if the heavy specific gravity A is attracted by each suction pipe 9, it will sink to the lower sieve 6 again because it exceeds a specific specific gravity. Further, the light weight material C in the mixture of the respective rows which are classified is floated on the water surface, and enters the respective openings 15 & of the discharge screw 15 which is rotated, and is discharged to the outside through the discharge port 15b. Fig. 10 is a view showing an i-th modification of the sixth embodiment. In the first modification, the upflow generating tube 8 and the suction tube 9 are disposed closer to the discharge end 3b side of the basket 3 than the suction tube 9 in the middle of the inclined screen 6, and a stronger upward flow than the upward flow generating tube 8ι is provided. The second upward flow generating pipe 82 and the second suction pipe 9Z' which is more attractive to the suction pipe are disposed such that the lower side of the inclined screen 6 and the upper side openings 8a and 9a face each other. In the first modification, the borrowing pipe 91 sucks and discharges the heavy specific gravity material B which is suspended in the water by the upward flow from the upward flow generating pipe 8ι, and the heavy specific gravity A having a small specific gravity such as the aggregate is borrowed from the first The upflow of 2 creates a strong upward flow of the tube 82 and is suspended in the water, and is attracted by the suction tube 92 of the second strong attraction to attract 115598.doc • 20· 1374058. At this time, when the heavy specific gravity materials A and Αι enter the water flow and are attracted by the suction pipe 9ι and the core, the suction force of the two weights A, both of which are due to their own weight, exceeds the buoyancy generated by the suction. (Attraction), and sinking again on the inclined screen 6 below, in the suction pipe 92 on the rear side, the heavy weight A of iron, copper, and the like all have a sinking force due to their own weight exceeding the attraction force. After sinking again on the inclined screen 6 below, and sinking on the inclined screen 6 below, the heavy specific gravity material having a small specific gravity such as aggregate is directly attracted and exported to the outside. Therefore, by performing the two-stage adsorption screening, the heavy specific gravity a can be screened by specific gravity (A, A'), and only the heavy specific gravity A of iron, copper, lead and the like having a very large specific gravity is made of the inclined sieve 6 The discharge end 3b on the lower end side is dropped in the discharge screw 11 to be screened. Fig. 11 is a view showing a second modification of the sixth embodiment. In the second modification, the second discharge screw 11a is provided on the front side of the discharge screw 设 provided at the bottom of the discharge end side of the water tank 2, and the horizontal flow is generated from the discharge end side of the water tank 2 to the front side. Nozzle 18. Therefore, the heavy specific gravity material having a small specific gravity such as the aggregate in the heavy specific gravity material A which is sunk by the discharge end 3b on the lower end side of the inclined screen 6 is affected by the horizontal flow from the nozzle 18 and sinks to the front. In the second discharge screw 丨丨a, only the heavy specific gravity A having a very large specific gravity such as iron, copper or lead is directly deposited in the discharge screw 11 to be screened. In the modification of Figs. 10 and 11, the number of the upward flow generating tube 8 and the suction tube 9 can be arbitrarily set. Fig. 12 and Fig. 13 show the seventh and eighth embodiments, and the two embodiments are 115598.doc - 21· 1374058. The i-th and second modifications of the fifth embodiment shown in Fig. 7 are shown in Fig. 12. The implementation type 5 has a suctioning officer 9 and a total of 2 suction tubes 9丨, 92. The embodiment of Fig. 13 is further provided with an upflow generating tube 8 and a total of 2 upflow generating tubes h, 82, so that two In the suction force of the suction pipe 9!, h, the suction pipe 9ι on the upstream side is weaker than the suction pipe 9Z on the downstream side, and the upstream flow generation pipe on the upstream side of the discharge forces of the two upward flow generation pipes 8, 82 is weaker than the downstream side. The upflow generation tube & can perform the screening of the heavy specific gravity materials A and A in the same manner as in the embodiment of Fig. 10 . At this time, even if the heavy-weight materials A and A are attracted to the suction pipes 9l and 92, they can be directly attracted according to the suction force of the suction pipes 9! and t, or the sinking force due to their own weight exceeds the suction force. Produces buoyancy (attractiveness) and sinks again below. Including the above embodiments, the shape of the inlet portion of the suction pipe 9 can be formed as shown in Fig. 14 and the shape of the inlet portion of the upward flow generating pipe 8 can be formed into the same shape. In this embodiment, the number of the upflow generating tube 8 and the suction tube 9 can be arbitrarily set. In each of the above embodiments, the heavy specific gravity A may be allowed to fall from the screen of the inclined screen 6, and members not included in the respective embodiments may be suitably employed in the embodiment without the member. For example, the storage portion 14 can be suitably employed in each of the embodiments of FIGS. 2, 4, and 6. In each embodiment, the description of the concrete aggregate of the construction waste is described, but in the above-mentioned papermaking. It is also possible to adopt the various embodiments in the case of separating and removing the gravel or the like by the wood chips or in the screening of the shots of the earth-made shooting range, etc., and the effect of high screening precision can be obtained. In these cases, the number of the upflow generating tube 8 and the suction tube 9 and the presence or absence of the inclined screen 6 can be appropriately set according to the object (four). For example, in the case of a shotgun or the like, since there is only one kind of object screening, the number of the upflow generating tubes 8 and : is sufficient as long as one. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart showing the steps of separating a mixture of construction waste materials into a construction type screening device. Fig. 2 is a longitudinal sectional view showing a screening apparatus of a second embodiment. Figure 3 is a cross-sectional view taken along line m-in of Figure 2. Fig. 4 is a longitudinal sectional view showing a second embodiment. Fig. 5 is a longitudinal sectional view showing a third embodiment. Fig. 6 is a longitudinal sectional view showing a fourth embodiment. Fig. 7 is a longitudinal sectional view showing a fifth embodiment. Fig. 8 is a longitudinal sectional view showing a sixth embodiment. Figure 9 is a plan view of Figure 8. Fig. 10 is a partially omitted longitudinal sectional view showing an i-th modification of the sixth embodiment. Fig. 11 is a partially omitted longitudinal sectional view showing a second modification of the sixth embodiment. Fig. 12 is a longitudinal sectional view showing a seventh embodiment. Figure 13 is a longitudinal sectional view showing an eighth embodiment. Figure 14 is a partial perspective view of an example of a suction tube. [Description of main component symbols] a, a', a" heavy specific gravity B in light specific gravity 115598.doc -23- 1374058
c 輕比重物 D 混合物 1 濕式篩選裝置 2 水槽 2a 供應端 2b 排出端 3 籃子 3a 供應端 3b 排出端 4 隔板 5 滑槽 6 傾斜篩 7 振動發生機構 8、81、82、... 上升流產生管 8a 上升流產生管之開口 9、9i、92、..· 吸引管 9a 吸引管之開口 10 輸送帶 11 、 11a 排出螺桿 lib 排出口 12 泵 13 過濾器 14 儲存部 15 排出螺桿 115598.doc ·24· 1374058 15a 開口 15b 排出口 16 低壩 17 軟蓋 18 喷嘴 21 碎裂機 22 篩 23 磁選機c light specific gravity D mixture 1 wet screening device 2 sink 2a supply end 2b discharge end 3 basket 3a supply end 3b discharge end 4 partition 5 chute 6 inclined screen 7 vibration generating mechanism 8, 81, 82, ... rise Flow generation tube 8a Upflow flow generation tube opening 9, 9i, 92, ..... suction tube 9a suction tube opening 10 conveyor belt 11, 11a discharge screw lib discharge port 12 pump 13 filter 14 storage portion 15 discharge screw 115598. Doc ·24· 1374058 15a Opening 15b Discharge port 16 Low dam 17 Soft cover 18 Nozzle 21 Fragmenter 22 Sieve 23 Magnetic separator
24 25 磨碎機 篩 115598.doc -25-24 25 Grinder Screen 115598.doc -25-