201043338 ' 六、發明說明： ' 【發明所屬之技術領域】 種利用各種 分類之廢棄 本發明係有關於一種廢棄物篩選結構，尤指一 廢棄物密度不同之特性而利用液體將其予以分離 物濕式密度分離浮選機。 【先前技術】201043338 'VI. Description of the invention: 'Technical field to which the invention pertains. The invention relates to the use of various classifications. The invention relates to a waste screening structure, in particular to a characteristic of different waste densities, which is wetted with a liquid by means of a liquid. Density separation flotation machine. [Prior Art]
在裱保意識不斷抬頭的今天’許多早先我們視為益用 棄物’現在卻是許多環保產業眼中的金雞母，其中^ ZToday, when the awareness of protection continues to rise, many of us have seen it as a useful thing, but now it is the golden chicken in the eyes of many environmental protection industries, among which ^ Z
Ο 及鐵鋁罐為最大宗。但是往往因分類不確實或是於室外 ^遭受塵土汗染，因此，通常於再加卫前，都必須再過清洗盘 篩選的程序。有鑑於此，便有人利用廢棄物密度不同之特^ 開發出利用液體的浮力同時清洗並篩選之廢棄物浮選機。 請參閱如第三與第四圖所示，其係為一習用之塑膠廢 收分類浮選機，其主要係包括-清洗槽（7 Q )、—螺旋 桿（8 0)以及-輸送帶（9 〇)所構成，其中該輸送帶（9 0)係套置於清洗槽（7 0)之底端，且輸送帶（9 〇 ) 設有多數之推料桿（91)。 口）上你 雖然該習用之浮選機可達同時清洗並筛選廢棄物之目 的’然而，其結構設計上仍存在有下述之缺失有待改進： 1、該輸送帶（9 0 )係為-環狀之結構且絕大部份之體 積都在清洗槽（7 0 )之液顏下，因此，支#該輸送帶（9 0)之軸桿以及軸承等元件’長期泡在具有化學藥劑的水中， 對其使用年限將會有致命的傷害，而若將軸桿橫向貫穿延伸出 清洗槽（7 0 )外，又有棘手漏水的問題等待克服，很難兩全 其美。 2、維修不易且曠日廢時；一旦清洗槽（7 〇 )中之輸送 帶（9 0)有故障必須排除時，必須先將清洗槽（7 〇 )中之 具有化學齡!之㈣漏乾，才可進行祕，先测清洗槽（7 0 )因體積大排液時間長的問題不談，為提高回收廢棄物之清 201043338 洗效率’通常會在清洗槽f 這些高價之藥劑亦隨之排^7中加入特殊藥劑’當排液時 3、如第_=㈤在是所費不貲。 離清洗槽（7 0 )底部之距^推料桿（9 1)其端部距 沒有完全排除而再次進=^目虽有限’若是高密度之廢棄物 時，很容易因推料桿（槽（7 〇 )之底部 0)之底部。 丄）之帶動而刮傷甚至刮破清洗槽（7 紋4將之螺 卡死不動。、，無法被順利帶出清洗槽甚至因而阻塞 ζΒιτίί^ ㈣嫩，辑期之努 【發明内容】 確實目決"述的_喊供—種清洗 之隔板與橫向之擋板，且隔板兩侧於框架間分 數自轉之撥料裝置，該框架兩侧分別設有一第一軌又 -裝設於框架中之清洗槽’該清洗槽底部 :U型第二轨道，每一第二執道係平行於二 t該隔板與擔板係延伸進人清洗槽並將清洗槽中切】一 U 型W道’、該清洗槽並於U型流道末端之側板上方設有。 -沿清洗槽底面設置且兩端延伸高於清洗槽之機 該循環機構係包含有第一鏈條與第二鏈條 ，刮板而形成-藉由馬達所帶動之履帶結構，該 用以將沉澱之高密度廢棄物帶離清洗桶；以及 痛構係 201043338 τ政Γ裝設於清洗槽清洗流道末端處之轉裝置，該出料裝置 可將洗選後之低密度廢棄物經過開孔帶離清洗槽。 本發明之上述及其他目的與優點，不難從下述 例之If細說明與附圖中，獲得深入了解。 當然，本發明在某些另件上，或另件之安排上容 同’但所選用之實施例，則於本說明書中， 細 於附圖中展示其構造。 抑“’並 【實施方式】 Ο 本發縣有_-麵用各種廢棄物密度不同 ，用液體將其扣分離分類之廢棄倾式 機 ，如第-與第二騎示，本個主要係包·;機J 0)、-裝設於框架(1 〇)中之清洗槽(2 〇):= ί 没ί且兩端延伸高於清洗槽（2 0)之循環機‘ 清洗槽（2 〇)尾端之出料裝置（4 〇 )。 縱向1 ϋ t係分別設有延伸進入清洗槽（2 0)中 縱向之IW板（1 1)與橫向之擔板（iΟ and iron and aluminum cans are the largest. However, it is often because the classification is not true or it is subject to dust and dust. Therefore, it is usually necessary to clean the tray before the addition of the guard. In view of this, some people have developed waste flotation machines that use the buoyancy of liquids to simultaneously clean and screen using the different density of waste. Please refer to the third and fourth figures, which are a conventional plastic waste sorting flotation machine, which mainly includes - cleaning tank (7 Q ), auger (80) and conveyor belt ( 9 〇), wherein the conveyor belt (90) is placed at the bottom end of the cleaning tank (70), and the conveyor belt (9 〇) is provided with a plurality of push rods (91). Although the conventional flotation machine can achieve the purpose of cleaning and screening waste at the same time, however, there are still some defects in the structural design that need to be improved: 1. The conveyor belt (90) is - the structure of the ring and most of the volume is under the liquid surface of the cleaning tank (70). Therefore, the rods of the conveyor belt (90) and the components such as bearings are long-term foamed with chemicals. In the water, there will be fatal damage to its service life. If the shaft extends transversely out of the cleaning tank (70), the problem of thorny water leakage is waiting to be overcome, and it is difficult to achieve the best of both worlds. 2, the maintenance is not easy and the day is a waste; once the conveyor belt (90) in the cleaning tank (7 )) has a fault that must be eliminated, the chemical tank must be first drained in the cleaning tank (7 〇) Only when the secret can be carried out, the first cleaning tank (7 0) will not be discussed due to the large volume of liquid discharge time. In order to improve the recovery of waste, the cleaning efficiency of 201043338 will usually be in the cleaning tank f. Adding a special agent to the row of '7' when draining, such as the first _= (five) is not expensive. The distance from the bottom of the cleaning tank (7 0 ) is not completely excluded from the bottom of the push rod (9 1). However, if it is a high-density waste, it is easy to push the rod (slot). (7 〇) at the bottom of bottom 0).丄)Theft and scratching or even scratching the cleaning tank (7 pattern 4 will snail stuck to it., can not be smoothly taken out of the cleaning tank or even blocked ζΒιτίί^ (4) tender, the period of the cycle [invention content] 〈 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Cleaning tank in the frame 'The bottom of the cleaning tank: U-shaped second rail, each second lane is parallel to two t. The partition and the supporting plate extend into the cleaning tank and cut in the cleaning tank. U-shaped The W channel', the cleaning tank is disposed above the side plate at the end of the U-shaped flow passage. - The machine is disposed along the bottom surface of the cleaning tank and extends at both ends higher than the cleaning tank. The circulation mechanism includes a first chain and a second chain. Formed by a squeegee - a crawler structure driven by a motor to carry the precipitated high-density waste away from the washing tub; and a painful structure 201043338 τ Γ installed at the end of the cleaning tank cleaning flow passage The discharging device can open the washed low-density waste The above and other objects and advantages of the present invention are not difficult to understand from the following detailed description of the following examples and the accompanying drawings. Of course, the present invention may be arranged on certain parts or parts. The same as the embodiment selected, but in the present specification, the structure is shown in detail in the drawing. "" and [embodiment] Ο This county has _-face with different waste density, use A waste tilting machine that separates and segregates liquids, such as the first and second riding, this main series package; machine J 0), the cleaning tank installed in the frame (1 〇) (2 〇) := ί No and the discharge device at the end of the cleaning machine (2 )) that extends above the cleaning tank (20) (4 〇). The longitudinal 1 ϋ t system is extended to the cleaning tank. (20) medium longitudinal IW board (1 1) and lateral load board (i
Q 1( ϋ).ιϊ清洗槽（2 〇)中切割出一U型流道。該隔 置（1 3 )，(1 0 )間分別設有複數自轉之撥料裝 Ϊ，(#得、i、、_ Λ (1 1)兩侧之撥料装置（1 3 )轉向相 Ε7尾端形〇 )中之液體’可由其尾端流至頭端再流 環。該框架（1 0)之兩侧分別設有-U型 有一弧带之導引i’r其中；每一執道（1 4 )前端並向前伸設 (14^)。又（1 4 1)且其頂面係鋪設有一第一耐磨板 •J ) 底部之兩分別固設有- u型第二軌道(2 4 ) ’又每2 1)係平行於其相對應之第—軌道（1 ί 道（21)之頂面上係鋪設有一第二耐磨 ΐ壓板K t错由複數鎖設於第二軌道（2 1)侧面之L 担壓板（22丄）定位於清洗槽（20)之底面。該底板（2 201043338 2)之橫切面可為實心、口字形或门字型，而本發明之較佳實 施例中’該底板（2 2)之橫切面係為一门字型結構。該清洗 槽（2 0)之兩側面上係分別對應於第二執道（2丄）藉由螺 栓（2 3 1)鎖設有一卜型防護板（2 3 )，為避免螺栓（2、 31)穿透清洗槽（2 〇)之侧板而導致漏水，該清洗槽（2 〇 )之兩側面上係固設有一具複數螺孔之底襯（2 4)，方便 鎖設防護板（2 3 )。該清洗槽（2 〇 )並於其u型流道末端 之侧板上方設有一開孔（2 5)。 該循環機構（3 0)係包含有一樞設於框架（丄〇)後端 上f並藉由—馬達（3 0◦)帶動之傳動裝置（3!)以及一 裝設於框架（1 0 )前端上方之從動裝置（3 2 )，該傳動裝 置（3 1)包含有一連接於馬達（3 〇 〇)之傳動軸（3工工）， 而傳動轴（311)之兩端則分別固設有一第一傳動輪（3丄 2)與第二傳動輪（313)而形成一工字型結構，該第一傳 動輪（312)與第二傳動輪（3丄3)係分別直線對應於一 組同-邊之第-軌道（！ 4 )與第二軌道（2 2 );織動裝 置（3 2 )之結構與傳動裝置（3 i )相同，包含有一兩端分 別固設有第-、二從動輪（3 2 2/3 2 3)之從動轴（3 2 1) ，該第一從動輪（3 2 2)與第二從動輪（3 2 3 )係分 別直線對應於一組同一邊之第一執道（1 4)與第二軌道（2 2) 。該循環機構（3 0)包含有一頭尾相接之第一鏈條（3 3 )以及一第二鏈條（3 4)。該第一鏈條（3 3 )係繞設於 第-傳動輪（312)與第-從動輪（χ 2 2)並於所對應之 第-軌道（1 4)與第二執道（2 1)上滑行；該第二鏈條（3 4)係繞設於第二傳動輪（313)與第二從動輪（3 2 3) 並於所對應之第一執道（14)與第二軌道（21)上滑行。 該第-鏈條（3 3)與第二鏈條（3 4)之内鏈板係分別以異 於底板（2 2)之方向固設有一第一裙板（3 31)與第二才君 板（3 f 1 )，該第一裙板（3 3丄）與第二裙板（3 4工） 係分別”其所對應之防護板（2 3 )互相錯位，而於清洗槽（2 201043338 的輸送效果。 〇 )底部之兩側形成一N型流道。該第一鏈條（3 3 )與第二 鍵fi3 4 )間係朝底板（2 2 )橫向設置有若干刮板（3 5 )， ，得第一鍵條（3 3 )、第二鏈條（3 4 )與括板（3 5 )形 成一類似樓梯之履帶結構，而本發明之履帶結構，也可為傳統 一f輸送帶的型態，即維持第一鏈條（3 3 )、第二鏈條（3 ^的結構’並將括板(3 5)改為輸送帶型態，並結合第一鏈 條^3 3 )、第二鏈條（3 4)而形成履帶結構，以達到相同 該出料裝置（4 〇)包含有一軸向固設於隔板（11 )上 達（4 2 )、一轴向連接於馬達（4 2 )之出料螺旋（4 3 ) ’該出料螺旋（4 3 )並經由開孔（2 5 )延伸出清洗槽 )以及一經由開孔（2 5 )延伸進人清洗槽（2 〇 )中 ^免f出料螺旋（4 3 )下方之V型導板（4 1)，該導板 (1 $朝向從動裝置（3 2)之一端係位於清洗槽（2 〇) $液面以下，方便清洗篩選後之低密度廢棄物進入導板（4 1 )A U-shaped flow path is cut in the Q 1( ϋ).ι cleaning tank (2 〇). The partitions (1 3 ) and (1 0 ) are respectively provided with a plurality of rotating material loading devices, and (#1, i, _ Λ (1 1) both sides of the material feeding device (1 3) are turned to phase 7 The liquid in the tail shape can flow from its tail end to the head end recirculation ring. The two sides of the frame (10) are respectively provided with a -U type and a guide of the arc band i'r; each front end of the road (1 4) is extended forward (14^). Also (1 4 1) and its top surface is laid with a first wear plate • J) The bottom two are respectively fixed - u type second track (2 4 ) 'and every 2 1) is parallel to its corresponding The first-track (1 ί Road (21) is laid on the top surface of a second wear-resistant slab K t is positioned by a plurality of L-loading plates (22 丄) locked on the side of the second track (2 1) Cleaning the bottom surface of the tank (20). The cross section of the bottom plate (2 201043338 2) may be solid, square or gate shaped, and in the preferred embodiment of the invention, the cross section of the bottom plate (2 2) is a font structure. The two sides of the cleaning tank (20) are respectively corresponding to the second road (2丄), and a buck guard plate (23) is locked by a bolt (2 3 1). Avoid the bolts (2, 31) penetrating through the side plates of the cleaning tank (2 〇) and causing water leakage. The sides of the cleaning tank (2 〇) are fixed with a plurality of bottom holes (2 4) for convenient screw holes. A protective plate (2 3 ) is locked. The cleaning groove (2 〇) is provided with an opening (25) above the side plate at the end of the u-shaped flow passage. The circulation mechanism (30) includes a pivoting Frame (丄〇) backend f and by means of a motor (3 0 ◦) driven transmission (3!) and a driven device (3 2 ) mounted above the front end of the frame (10), the transmission (31) comprises a connection a drive shaft (3) of the motor (3 〇〇), and a first transmission wheel (3丄2) and a second transmission wheel (313) are respectively fixed on both ends of the transmission shaft (311) to form a The I-shaped structure, the first transmission wheel (312) and the second transmission wheel (3丄3) respectively correspond to a set of the same-side first-track (! 4) and the second track (2 2); The structure of the weaving device (3 2 ) is the same as that of the transmission device (3 i ), and includes a driven shaft (3 2 1) in which the first and second driven wheels (3 2 2/3 2 3) are respectively fixed at both ends. The first driven wheel (32 2 2) and the second driven wheel (3 2 3 ) respectively correspond to a first lane (1 4) and a second track (2 2) of a group of the same side. The mechanism (30) comprises a first chain (3 3 ) and a second chain (3 4) connected end to end. The first chain (3 3 ) is wound around the first transmission wheel (312) and the first - the driven wheel (χ 2 2) and the corresponding first track ( 1 4) gliding with the second lane (2 1); the second chain (34) is wound around the second transmission wheel (313) and the second driven wheel (3 2 3) and corresponding thereto One lane (14) and the second rail (21) slide. The inner chain of the first chain (3 3) and the second chain (34) are respectively fixed in a direction different from the bottom plate (22). There is a first skirt (3 31) and a second panel (3 f 1 ), the first skirt (3 3 丄) and the second skirt (3 4 )) are respectively "the corresponding protective panels (2 3) Displacement with each other, and in the cleaning tank (2 201043338). 〇) An N-type flow path is formed on both sides of the bottom. The first chain (3 3 ) and the second key fi3 4 ) are laterally disposed with a plurality of scrapers (3 5 ) toward the bottom plate (2 2 ) to obtain a first key strip (3 3 ) and a second chain (3). 4) forming a stair-like crawler structure with the bracket (35), and the crawler structure of the present invention may also be a conventional f-belt type, that is, maintaining the first chain (3 3 ) and the second chain ( 3 ^ structure 'and the bracket (3 5) is changed to the conveyor belt type, and combined with the first chain ^3 3), the second chain (34) to form a crawler structure to achieve the same discharge device ( 4 〇) comprising a discharge spiral (4 3 ) axially fixed to the partition (11), and an output spiral (4 3 ) axially connected to the motor (4 2 ) The opening (2 5 ) extends out of the cleaning tank) and a V-shaped guide plate (4 1) extending through the opening (2 5 ) into the cleaning tank (2 〇) The guide plate (1 $ toward the driven device (3 2) is located at the end of the cleaning tank (2 〇) $ liquid level, which is convenient for cleaning and screening the low-density waste into the guide plate (4 1 )
O/il逍敎慢输送，再 ’及同步完成清洗與 篩選之作業。 下壓拍打動作，除可提高清洗之效果，更 物’例如塑膠材料，沿著清洗桶（2 0 ) 經由撥料裝置（13)第二次的下壓拍打 綜上所述，本發明確實具有如下幾項優點： 月之循環機構（3 Q )僅有第-鏈條（3 3)O/il slows down the transport and then finishes the cleaning and screening operations simultaneously. Pressing the tapping action, in addition to improving the cleaning effect, the object 'for example, the plastic material, along the cleaning bucket (20) through the second pressing of the feeding device (13), the present invention does have The following advantages: The monthly cycle mechanism (3 Q ) only the first - chain (3 3)
3/3 4)之張力，且保養容易，可 7 201043338 延長循環機構（3 0)之始用年限。 2、 維修容易。本發明之鏈條（3 3/3 4 )或刮板（3 5)有故障須排除時’僅須慢慢轉動傳動裝置（31)與從動 裝置（3 2)即可將故障之部分帶離清洗槽（2 〇)液面，直 接予以維修或替換’完全不需漏除清洗槽（2 〇 )中之液體（清 洗劑），不僅省時更可節省清洗藥劑之費用。 3、 本發明於清洗槽（2 〇)底面與刮板（3 5)間鋪設 有一底板（2 2 )，因此，沉澱後之高密度廢棄物根本不可能 刮傷清洗槽（2 0)之底部，只要定期更換更換底板（2 2) 即可大幅延長清洗槽（2 0)之使用壽命。 4、 本發明之出料裝置（4 〇 )捨棄習用浮選機常用之螺 ，結構，而改採一類似彈簧之出料螺旋（4 3 )，因此，即使 ，選清洗後之低密度廢棄物之尺寸略大於出料螺旋（4 3 )之 ，距，該出料螺旋（4 3)亦能適度拉伸，將篩選清洗後之低 密度廢棄物順利帶出清洗槽（2 〇)。 一 5 由裙板（3 3 1/3 4 1 )與防護板（2 3)所形成 之N型流道可避免沉澱之細小高密度物流入鏈條（3 ^)中’造成鏈條（3 3/3 4)之過度磨耗，可有效降低本 發明鍵條（3 3 / 3 4 )之維修機率，且鏈條（3 3 / 3 ‘4 ) 與軌道（14/21)間所鋪設之耐磨片（14 2/21 消耗品’只要定期更換可延長轨道（1 4/2 1)之传用 筹命’將低大修之機率。 由習板（1 1)將清洗槽（2 〇 )中清細 宙S用之直線成U型，使其清洗動線延長一倍，因此 ^棄物赌讀（2 Q )健清洗之咖树之加倍 ^達到篩選與清洗之目的，且又因橫向擋板（i 2) 1洗槽（2 0 )中迂迴之水流並不會影響循環機構 離高密度廢棄物之功能。 ^ 0}' 以上所述實施例之揭示係用以說明本發明，並非 本發明，故舉凡數值之變更或等*元件之置換仍應隸屬本^ 201043338 ' 之範疇。 由以上詳細說明，可使熟知本項技藝者明暸本發明的確可 Ο 達成前述目的，並且在同類製程或產品中均未見有類似之發 t圖之狀，爰依法俱文提出專利申請。 第一圖係本發明之立體圖； 第二圖係本發明之剖視圖； 第三圖係習用塑膠廢料回收分類浮選機之立體圖.' 第四圖係習用塑膠廢料回收分類浮選機之剖視I以及 【主要元件符號說明】 ° 〇 1 0框架 1 2擋板 14第一軌道 1 42第一耐磨板 21第二軌道 2 2底板 2 3防護板 2 4底襯 30循環機構 31傳動裝置 312第一傳動輪 3 2從動裝置 3 2 2第一從動輪 3 3第一鍵條 3 4第二鍵條 3 5刮板 4 1導板 4 3出料螺旋 1 1隔板 13撥料裝置 141導引段 2 0清洗槽 211第二耐磨板 2 2 1壓板 2 3 1螺栓 2 5開孔 3 0 0馬達 311傳動軸 313第二傳動輪 3 21從動軸 3 2 3第二從動輪 3 31第一裙板 3 41第二裙板 4 0出料裝置 4 2馬達3/3 4) Tension and easy maintenance, 7 201043338 Extend the beginning of the cycle mechanism (30). 2, easy to repair. When the chain (3 3/3 4 ) or the squeegee (35) of the present invention has a fault to be eliminated, it is only necessary to slowly rotate the transmission (31) and the driven device (32) to take the faulty part away. Clean the tank (2 〇) level and repair or replace it directly. 'There is no need to drain the liquid (cleaning agent) in the cleaning tank (2 〇), which saves time and saves the cost of cleaning the pharmacy. 3. The present invention has a bottom plate (2 2 ) between the bottom surface of the cleaning tank (2 〇) and the squeegee (35). Therefore, it is impossible for the high-density waste after sedimentation to scratch the bottom of the cleaning tank (20). As long as the replacement base plate (2 2) is replaced regularly, the service life of the cleaning tank (20) can be greatly extended. 4. The discharging device (4 〇) of the present invention discards the screw and structure commonly used in the conventional flotation machine, and adopts a spring-like discharging spiral (4 3 ), so even if the low-density waste after cleaning is selected The size is slightly larger than the discharge spiral (4 3 ), and the discharge spiral (43) can also be moderately stretched, and the cleaned low-density waste can be smoothly taken out of the cleaning tank (2 〇). A N-shaped flow path formed by the skirt (3 3 1/3 4 1 ) and the protective plate (23) can avoid the fine high-density flow of sediment into the chain (3 ^) 'causing the chain (3 3/ 3 4) Excessive wear, which can effectively reduce the maintenance probability of the key strip (3 3 / 3 4 ) of the present invention, and the wear-resistant sheet laid between the chain (3 3 / 3 '4 ) and the rail (14/21) ( 14 2/21 Consumables 'As long as the regular replacement of the track (1 4/2 1) can be used to reduce the probability of repairing. The cleaning tank (2 〇) will be cleaned by the board (1 1) S uses a straight line to form a U-shape, which doubles the cleaning line, so the doubling of the gambling reading (2 Q) doubles the cleaning of the coffee tree to achieve the purpose of screening and cleaning, and because of the lateral baffle (i 2) The water flow in the 1 wash tank (20) does not affect the function of the circulation mechanism from the high-density waste. ^ 0}' The above description of the embodiments is for explaining the present invention, not the present invention. Any change in the value or replacement of the * component shall still be within the scope of this paragraph 201043338. From the above detailed description, it will be apparent to those skilled in the art that the present invention is indeed capable of achieving the foregoing. Aim, and no similar t-graphs are found in similar processes or products, and patent applications are filed according to law. The first figure is a perspective view of the present invention; the second figure is a cross-sectional view of the present invention; It is a three-dimensional diagram of a plastic waste recycling and sorting flotation machine. 'The fourth picture is a cross-sectional view of the conventional plastic waste recycling classification flotation machine I and [the main component symbol description] ° 〇1 0 frame 1 2 baffle 14 first track 1 42 first wear plate 21 second track 2 2 bottom plate 2 3 protective plate 2 4 underlay 30 circulation mechanism 31 transmission 312 first transmission wheel 3 2 driven device 3 2 2 first driven wheel 3 3 first key strip 3 4 second key strip 3 5 scraper 4 1 guide 4 3 discharge spiral 1 1 partition 13 material feeding device 141 guiding section 2 0 cleaning tank 211 second wear plate 2 2 1 pressure plate 2 3 1 bolt 2 5 opening hole 300 motor 311 transmission shaft 313 second transmission wheel 3 21 driven shaft 3 2 3 second driven wheel 3 31 first skirt 3 41 second apron 4 0 discharge device 4 2 motor