1. <track id="bimn6"><span id="bimn6"></span></track>

            <tbody id="bimn6"></tbody>

              <bdo id="bimn6"><dfn id="bimn6"><thead id="bimn6"></thead></dfn></bdo>

              <nobr id="bimn6"></nobr>
            1. RBF系列橡膠帶式真空過濾機  RBF belt vacuum filter

              RBF系列橡膠帶式真空過濾機 RBF belt vacuum filter

              產品描述


               
               
                      RBF橡膠帶式真空過濾機是以真空負壓為推動力實現固液分離的設備,在結構上,過濾區段沿水平長度方向布置,可以連續完成過濾、洗滌、吸干、濾布再生等作業。設備具有過濾效率高、生產能力大、洗滌效果好、濾餅水分低、操作靈活,維修費用低等優點??蓮V泛應用于冶金、礦山、化工、造紙、食品、制藥、環保等領域中的固液分離,尤其在煙氣脫硫中的石膏脫水方面(FGD)有良好的應用。
                    RBF belt vacuum filter is a device that realizes solid-liquid separation with vacuum negative pressure as the driving force. In terms of structure, the filter section is arranged along the horizontal length direction, which can continuously complete filtration, washing, drying and filter cloth regeneration. The equipment has the advantages of high filtration efficiency, large production capacity, good washing effect, low water content of filter cake, flexible operation and low maintenance cost. It can be widely used in metallurgy, mining, chemical industry, paper making, food, pharmaceutical, environmental protection and other fields of solid-liquid separation, especially in the flue gas desulfurization gypsum dehydration (FGD) .



               

               
                    RBF帶式真空過濾機是我廠在引進國外同類產品技術基礎上,自主開發的一種高效過濾固液分離設備。該設備采用了固定真空盒,橡膠過濾帶在真空盒上滑動,真空盒與橡膠過濾帶間構成運動密封的結構型式,它能連續自動完成過濾,濾餅洗滌、卸渣,濾布再生等工藝操作,并且母液有與濾餅洗滌液可以分段收集。具有過濾效率高、生產能力大,洗滌效率好,濾餅水分低、操作靈活、維護簡單等優點。膠帶機經我廠多年改進和完善,產品的技術性能和質量已達到了國際先進水平,已廣泛應用于冶金、礦山、化工、電廠濕法煙氣脫硫、煤化工、造紙食品、制藥及環保等行業。
                    RBF belt vacuum filter is a kind of high efficiency filtration solid-liquid separation equipment, independently developed by our factory on the basis of the introduction of similar products from abroad. The equipment adopts a fixed vacuum box, while the rubber filter belt slides on the vacuum box, the vacuum box and the rubber filter belt form a motion seal structure, it can continuously and automatically complete process operations like filtration, filter cake washing, slag unloading, filter cloth regeneration and etc. Besides, the mother liquid and filter cake washing liquid can be collected in sections. It has the advantages of high filtration efficiency, large production capacity, good washing efficiency, low water content of filter cake, flexible operation and simple maintenance. After many years of tape machine improvement of our factory, the technical performance and quality of our tape machine have reached the international advanced level. It has been widely used in metallurgy, mining, chemical industry, power plant wet flue gas desulfurization, coal chemical industry, paper making food, pharmaceutical and environmental protection industries.



              設備運行原理:
              Operation principle of equipment:

                   上圖所示為帶式真空過濾機工作原理。漿料由加料裝A均布于向前轉動的濾布I上,在真空抽力的作用下,濾液穿過濾布并通過橡膠過濾帶H的排液槽進入真空盒J,再通過濾液總管進入氣液分離器E中收集排放或回收。被截留的固液在濾布上形成濾餅經過抽干卸料。完成卸料后的濾布通過濾布清洗裝置D進行再生,進入下一個環節的過濾,設備上能對過濾母液和洗滌液實現分段收集,濾餅的洗滌可以以順流和逆流(如圖)的方式洗滌,帶速可在一定范圍上無級調速。整個喂料過濾,洗滌,抽干,卸料,濾布再生可以連續自動完成,并可實現遠程自動控制和操作。
                   The above figure shows the working principle of the belt vacuum filter. The slurry is distributed on the forward rotating filter cloth I by charging A. Under the action of vacuum pumping force, the filtrate passes through the filter cloth and enters the vacuum box J through the rubber filter tank with H, and then enters the gas-liquid separator E through the filtrate main pipe for collection, discharge or recovery. The trapped solid liquid forms a cake on the filter cloth and is drained and discharged. After discharge, the filter cloth is regenerated through the filter cloth cleaning device D, and enters the filtration of the next step. The filter mother liquid and washing liquid can be collected in stages on the device. The filter cake can be washed in the way of upstream and upstream (as shown in the figure), meanwhile, the speed can be adjusted in a certain range. The whole process of feed filtration, washing, draining, unloading, filter cloth regeneration can be completed continuously and automatically, and it can achieve remote automatic control and operation.


              設備技術特點: 
              Equipment technical characteristics:
              A、可以連續完成喂料過濾、濾餅洗滌、吸干、卸料、濾布再生等工藝操作。
              A、It can continuously complete the process operations of feed filtration, filter cake washing, drying, unloading, filter cloth regeneration and etc.
              B、過濾母液和各段濾餅洗滌液可以分段收集,并可實現平流和逆流洗滌。
              B、The filter mother liquor and each section of filter cake washing liquid can be collected in stages, and it can achieve advection and countercurrent washing.
              C、整體結構模塊化設計,可靈活組裝,便于運輸和安裝。
              C、The overall structure of the modular design, flexible assembly, easy to transport and installation.
              D、控制系統應用了DCS技術,可實現現場和遠程自動控制。
              D、The control system applies DCS technology, which can realize on-site and remote automatic control.
               
              真空盒與升降裝置:
              Vacuum box and lifting device
                     真空盒氣缸升降設計,保證真空盒升降空間最大。真空密封結構采用移動式密封結構,用于防止運動的過濾帶與固定的真空盒之間的真空損失,過濾帶底部中間兩側墊上磨擦帶在真空盒滑臺槽上移動,保證絕大部分磨損發生在易于更換的移動摩擦帶上。且在滑臺槽上,在過濾機長度方向以固定的間隔通入潤滑水,潤滑液體可以起到防止空氣侵入和清潔密封面的作用。
                     Vacuum box cylinder lifting design to ensure that the vacuum box lifting space is maximum. The vacuum sealing structure adopts a mobile sealing structure to prevent the vacuum loss between the moving filter belt and the fixed vacuum box. The friction belt on the bottom middle side of the filter belt is padded on the slide groove of the vacuum box to ensure that most of the wear occurs on the moving friction belt that is easy to replace. And on the slide groove, the lubricating water is passed into the filter length direction at a fixed interval, and the lubricating liquid can play a role in preventing air intrusion and cleaning the sealing surface.
               
               
                                                                                                         升降機構一   Lifting mechanism (1)              升降機構二  Lifting mechanism (2)
               
               
              糾偏裝置  Deviation correction devic
                     采用氣囊氣缸推動糾偏輥偏轉一定角度來糾正濾布的偏移。氣囊采用優質品牌,糾偏開關采用接近式,質量可靠穩定。
                     The deflecting roller is deflected at a certain Angle by the air bag cylinder to correct the deviation of the filter cloth. The air bag adopts high quality brand, the correction switch adopts close type. The quality is reliable and stable。
               

               
                                                                   氣缸糾偏  Cylinder correction

               氣囊糾偏  air bag correction
              膠帶張緊裝置 Tape tensioning device
                    采用螺桿推拉式設計,軸承座選用滑槽式。螺桿頂部帶搖柄輪,通過轉動搖柄可以對橡膠過濾帶進行張緊和調偏。
                    Screw push-pull design, bearing seat selection of chute type. The top of the screw is equipped with a crank wheel, and the rubber filter belt can be tensioned and deflected by rotating the crank.
              清洗裝置  Cleaning device
                    采用水噴射清洗濾布和過濾帶,且配有密封的箱體,清洗管進出的兩側采用法蘭密封,這樣可以保證清潔的工作現場和過濾機的正常工作。噴頭采用本公司自制噴嘴,可以充分保證清洗效果。
                    Using water jet cleaning filter cloth and filter belt, and equipped with a sealed box, both sides of the cleaning pipe inlet and outlet are sealed with flanges, which can ensure a clean work site and the normal work of the filter. The nozzle is made by our company, which can fully guarantee the cleaning effect.
                         張緊裝置 
                    Tape tensioning device
                              清洗裝置   
                          Cleaning device
              淋洗工藝 Spindle roller support
                     采用逆流淋洗與噴淋洗裝置,同時可根據物料及工藝的要求采用順流洗滌和逆流洗滌兩種方法,對物料清洗的更徹底。
                    The use of counter-current washing and spray washing device, at the same time according to the requirements of the material process can be used in the downstream washing or counter-current washing coating method, the material cleaning more thoroughly.
               
               
                                                                          逆流洗滌示意圖    
                                    Schematic representation of the countercurrent wash

               
                                     順流洗滌示意圖 
               Schematic representation of the downstream wash
              膠帶支撐裝置Tape support device
                材質采用塑料合金,具有高耐磨性、抗沖擊性、自潤滑性等特性。軸承室和密封圈材質為一次性注射成型的全塑材料,并采用迷宮式和接觸式三層防水、防塵密封支撐裝置。密封材料選用日本BPT-G塑料,使用不變形,有效預防軸承的銹蝕,與原來普遍采用的鋼制托輥相比,具有重量輕、耐腐蝕、密封性好、不進水、不怕粉塵、抗沖擊、高速運行噪音低、耐磨耗、使用壽命是鋼制托輥的三倍以上等顯著優點。
                    The material is made of plastic alloy, with the characteristics of high wear resistance, impact resistance, self-lubrication and etc. The bearing chamber and sealing ring are made of disposable injection molding all-plastic material, supported by labyrinth and contact three-layer waterproof and dust-proof sealing devices.
                   The sealing material is made of Japanese BPT-G plastic, which does not deform and effectively prevents the corrosion of bearings. Compared with the steel rollers commonly used in the past, it has the obvious advantages of light weight, corrosion resistance, good sealing, water-proof, dust-proof, impact resistance, low noise of high-speed operation, abrasion resistance, and service life is more than three times that of steel rollers.

                 心軸托輥支撐

                                控制系統   Control system
              控制系統Control system
                    采用變頻調速控制系統,實現帶機速度自由給定。并根據客戶的需求,可搭載自動運行和自動保護通訊控制系統系統,實現糾偏控制、膠帶極限位置控制(停機、節點信號輸出)、濾布拉斷控制(停機、節點信號輸出),遠程和現場開、停機及主控機轉速輸出至DCS系統的通訊接口??刂葡到y元件采用國外進口件和國內知名品牌產品,質量穩定可靠,系統控制穩妥實用。
                   Frequency conversion speed control system is adopted to realize the free setting of the speed of the tape machine. And according to customer needs, it can be equipped with automatic operation and automatic protection communication control system system, so as to achieve deviation correction control, tape limit position control (stop, node signal output), filter bra break control (stop, node signal output), remote and field open, shut down and control machine speed output to the DCS system communication interface. The control system components are imported from abroad and well-known domestic brand products, with stable and reliable quality. The system control is stable and practical.

                  控制系統
              Control system

                  控制系統
              Control system
               
              橡膠過濾帶及裙邊、擋板  Rubber filter belt and skirt, baffle
                    橡膠過濾帶又稱真空皮帶,它是RBF帶式真空過濾機配套的關鍵部件。過濾帶骨架材料選用性能優異的聚酯帆布;具有強力高、耐酸堿、耐熱、耐油、耐寒等特點,其中最顯著的特點就是定負荷伸長小,不易產生變形。過濾帶上、下覆蓋膠可根據工況條件采用不同的配方,滿足耐酸堿、耐熱、耐油、耐寒等不同需求;過濾帶成型和硫化采用一次整體復合工藝,確保帶體的平整和性能的穩定。
                    The rubber filter belt is also known as the vacuum belt, which is the key component of the RBF belt vacuum filter. Filter belt skeleton material selection of excellent performance polyester canvas; It has the characteristics of high strength, acid and alkali resistance, heat resistance, oil resistance, cold resistance and etc. The most remarkable feature is that the constant load elongation is small, and it is not easy to produce deformation. The filter belt and the lower cover rubber can be formulated according to the working conditions to meet the different needs of acid and alkali resistance, heat resistance, oil resistance, cold resistance and etc. The molding and vulcanization of the filter belt adopt a single integral composite process to ensure the smooth and stable performance of the belt.
                    為防止濾液的流溢,過濾帶兩邊增加有波形裙邊,這種結構的裙邊伸縮性好,可以避免裙邊經過輥筒改向破裂。過濾帶的上部構造為中間設有一排排溝槽,作為排液帶。溝槽中部有一排或多排排液孔,可把液體收集在真空箱內。排液孔部位采用純膠結構,阻隔了酸堿液通過布層滲入使濾帶分層,提高了過濾帶使用壽命。
                    In order to prevent the overflow of the filtrate, the two sides of the filter belt are added with the wavy skirt edge. The skirt edge of this structure is good, which can avoid the skirt side through the roller to break. The upper structure of the filter belt is equipped with rows of grooves in the middle, as the drainage belt. There are one or more rows of liquid drainage holes in the middle of the trench, which can collect the liquid in a vacuum tank. The drainage hole adopts pure glue structure, which prevents the acid and alkali solution from infiltrating through the cloth layer and improves the service life of the filter belt.

              外型尺寸圖


              RBF技術參數 
               
              過濾寬度/M
              Filter Width
                1.3 1.8 2.0 2.5 3.2 4.0 4.5
              過濾長度/M
              Filtering Length(mm)
              N(整數) 過濾面積/m2 重量/T 過濾面積/m2 重量/T 過濾面積/m2 重量/T 過濾面積/m2 重量/T 過濾面積/m2 重量/T 過濾面積/m2 重量/T 過濾面積/m2 重量/T
              8 3 10.4 8.3 14.4 12.7 16 14.2 20 20.0 25.6 26.3        
              10 4 13.0 9.0 18.0 13.7 20 15.4 25 22.0 32.0 28.5        
              12 5 15.6 10.5 21.6 15.3 24 17.2 30 25.3 38.4 32.9 40 48.0 54 55.0
              14 6 18.2 11.5 25.2 16.6 28 18.7 35 27.4 45.0 35.3 56 51.0 63 57.9
              16 7 20.8 12.5 28.8 17.9 32 20.2 40 29.5 51.2 37.7 64 53.6 72 60.8
              18 8 23.4 13.5 32.4 19.2 36 21.7 45 31.6 58.0 40.1 72 56.2 81 63.7
              20 9 26.0 14.5 36.0 20.5 40 28.0 50 38.6 64.0 42.5 80 58.8 90 72.0
              22 10     39.6 21.8 44 30.0 55 40.9 70.4 51.0 88 66.6 99 75.2
              24 11         48 32.0 60 43.2 77.0 53.5 96 69.4 108 78.4
              26 12             65 45.5 83.2 56.0 104 72.2 117 81.6
              28 13                 89.6 58.5 112 75.0 126 84.8
              30 14                 96.0 61.0 120 77.8 135 88.0
              A(m) N<5 0.20 0.20 0.25 0.25 0.40    
              N≥5 0.25 0.25 0.25 0.40 0.40 0.40 0.40
              B(m) N<5 0.45 0.45 0.45 0.45 0.52    
              N≥5 0.45 0.45 0.45 0.52 0.645 0.645 0.645
              C(m) N<5 1.30 1.30 1.30 1.30 1.60    
              5≤N≤9 1.30 1.30 1.30 1.60 1.675 1.675 1.675
              N>9   1.30 1.30 1.60 1.675 1.975 1.975
              D(m) N<5 2.00 2.00 2.00 2.00 2.20    
              5≤N≤9 2.00 2.00 2.00 2.00 2.20 2.20 2.20
              N>9   2.00 2.00 2.20 2.20 2.25 2.25
              E(m) N<5 1.85 1.85 2.00 2.00 2.11    
              5≤N≤9 2.00 2.00 2.00 2.11 2.21 2.21 2.21
              N>9   2.00 2.00 2.11 2.21 2.41 2.41
              F(m) N<5 0.86 0.86 0.86 0.86 1.105    
              N≥5 0.91 0.91 0.91 1.105 1.205 1.205 1.205
              H(m) N<5 2.00 2.00 2.00 2.18 2.60    
              5≤N≤9 2.18 2.18 2.18 2.38 3.10 3.10 3.10
              N>9 2.18 2.18 2.18 2.60 3.10 3.60 3.60
              W(m)   1.95 2.45 2.65 3.25 4.15 4.80 5.30

              使用現場

               
              應用范圍:
              Application range:


                    目前已廣泛應用于冶金、礦山、石化、化工、洗煤、造紙、肥料、食品、制藥、環保等領域中的固液分離,煙氣脫硫中的石膏脫水等行業。
                    At present, it has been widely used in metallurgy, mining, petrochemical, chemical, coal washing, paper making, fertilizer, food, pharmaceutical, environmental protection and other fields of solid-liquid separation, flue gas desulfurization gypsum dehydration and other industries.

              應用實例表:
               
              物料名稱 液固比 濾餅含水% 生產率Kg/(m2·h)(干)
              4A沸石 4A zeolite 80-100 g/L ≤40 262.4
              種分瑪瑙種子 200-400 g/L ≤18 1094.4
              種分瑪瑙成品 260-600 g/L ≤13 200
              硅渣white residue 4.5 ≤33 547.2
              拜爾法氫氧化鋁種子 400-800g/L ≤14 3200
              脫硫石膏 1/1 <10 1280
              擬薄水鋁石planned thin water aluminum 8/1 58 48
              氧化鋅zinc hydroxide 10/1 50.1 121.44
              氧化錳還原酸浸礦漿 3/1 43.06 141.536
              磁鐵礦 2.5/1~4/1 6.6 800-1600
              硫精礦sulfur concentrate 4/1~2.5/1 10.63 576~960
              銅精礦copper concentrate 4/1~2.5/1 11 640~960
              全尾礦 9/1~4/1 20.4 4800~800
              精鐵礦 2/1~1.5/1 7~9 3200~4800
              錳礦 2/1 13~15 1200~1600
              氫氧化鋁  aluminum hydroxide 4/1 13~16 560
              五氧化二鋁 3/1 31 278.4
              煙煤灰 10/1 18.7 7.8m3/(m2.h)
              螢石粉fluorite powder 2/1 10 1280
              金精礦gold concentrate 2/1 23~25 177.6
              仲鎢酸銨 2/1 70 320
              檸檬酸鈣(硫酸鈣)calcium citrate 5/1~3/1 14 412.8
              偶氯有機染料 30/1~20/1 68 160
              燒堿和CuS混合液 4/1 17.6 665.6
              ABS樹脂 10/1 34~36 272
              磷酸鈣礦漿 3.5/1 20.5 552
              溶性磷肥 2/1~5/1 6~9 1600~3200
              硫酸污泥 1.5/1 35~38 1064~1248
              鋁釩土 5/1~4/1 25.4~27 2720
              苛化泥 4/1 45~50 425~980
              硫酸鋁殘硅 1.5/1 35 320
              慶大霉素發酵液 1/1~2/1 32.1 124.5
              粗摒化鋅 4/1 21.5 372
              含氟石灰 4/1~5/1 40~49 320~896
              鹽銨 4/1 16~18 1600~3000
              硅氟化鈉 3/1 13~18 480~800
              濕法水泥 2/1 15~19 1259.2
              選煤精煤 4/1 21.4 348.8
              選煤尾煤 6/1 23 160
              硫酸鋅礦漿 5/1 42~48 499.2
              磷石膏(P2OS) 4/1~5/1 18~21 1280
              鉀長石 1~2/1 7.9 480
              石墨礦灰渣 3/1 31 278.4
              有色金屬含鋅廢漿 22.8/1 86.18~88 118.4
              牛皮渣(硫酸鉻) 44.1/1 68 120
              白炭黑 3% 80.5 150
              水解渣 10/1 70.2~73.1 338.5
              蔗渣 10/1 74~78 480
              檸檬酸(發酵液) 2.81/1 24 368
              檸檬酸(鈣鹽) 4/1 13 251.2
              鈾冶煉 0.6/1~1.3/1 16~20 667.2
              含鋅廢漿 22.8/~1 87.18~89.52 216
              硝酸碳肥酸不溶液 1.55/1 6.8 1144
              硫酸鋁殘渣 1.5/1 25~44 154.56
              硫酸污泥 1.5/1 35~50 1064
              轉爐污泥 / 20 163.2
              熒光材料酸洗 2/1 28 296
              硬脂酸鉛 5/1 58 2400
              硝基葸醌 4.26/1 / 288
              砂料 4/1 18.2 1142.4
              次氧化鋅脫砷 堿浸
              工藝中的物料 沉砷
              4/1 10/1 42.4 38 161.6 354.2
              含鈕礦料 1.45/1 25.4 96
              燒結泥渣 2/1 21 132.8
              活性白土 4/1 49.2 v
              氧化鋅懸浮液 2.5/1 40.3 45.12
              黃砂 / 4~6 1072~1280
              含鋅和含鐵 白渣
              兩種懸浮液 黑渣
              3.5/1 3/1 45.1 48.2 43.52 36.48
              氨Ⅰ泥 2.82/1 60~63 1080
              色酸AS 12/1 30 155.2
              四硝基間甲酚 10/1   240~340.8
              磷礦石 2/1~1.6/1 11 1280~1600
              燃煤乙塵灰漿 6/1 30.3~36.6 1257~1544
              ABS(丙烯晴-丁二烯-苯乙烯共聚物) 漿液濃度
              10~15
              38~59 生產效率(濕)kg/(m2.h)
              160~640
              聚苯乙烯 30~50 8~14 1600~3200
              PVA(聚乙烯醇) 10~15 53~62 144~192
              硫酸鈣 30~40 14~18 800~1600
              金鋼砂 40 6~9 2400~3200
              石英 15~20 6~9 1280~1600
              季戊四醇 20~25 22~38 188~345

              應用范圍表:
               

              Chemicals
              4A沸石
              4A zeolite
              催化劑
              catalyzer
                 礦
              Mineral
              氫氧化鋁
              aluminum  hydroxide
              鉀鹽
              potassium salt
              食品
              Food
              醋酸
              ethylic acid

              Fertilizer
              磷石膏
              phosphogypsum
              瑪瑙填料
              agate filler
              染料及其中間體dyes and intermediates 煤的泥漿
              coal slurry
                支鏈淀粉衍生物amylopectin derivative 磷酸氫鈣
              calcium bicarbonate
              氟化鋁
              aluminum fluoride
              工業洗滌劑industrial detergent 銅的濃縮物
              copper concentrate
                檸檬酸鈣
              calcium citrate
              碳酸鈣
              calcium carbonate
              氧化鋁凝膠alumina gel 氧化鐵
              Iron oxide
              黃金的沉淀物
              gold sediment
                草酸鈣
              calcium oxalate
              硫酸鈣
              sulfate calcium
              氫氧化鋁
              aluminum hydroxid
              氧化鋁
              alumina
              鈦鐵礦
              ilmenite
                硫酸鈣
              sulfate calcium
              硝酸鈣
              nitrate nitrate
              磷酸鋁
              aluminum phosphate
              鋅鋇白
              Charlton white     
              氫氧化鎂magnesium hydroxide   谷氨酸
              glutamic acid
              硝酸法的泥漿phosphorus method mud
              硫酸鋁
              aluminum sulfate
              碳酸鎂magnesium carbonate 碳酸錳
              manganese carbonate
                蔗糖
              sucrose
              環境保護
              Environmental protection

               
              工業廢水
              Industrial wastewater
              氨基酸
              amino acids
              氫氧化鎂magnesium hydroxide 礦石瀝濾殘渣mineral drain filter residue   檸檬酸
              citrate
              城市污水
              municipal sewage
              鋇鹽
              barium salts
              鎳鹽
              nickel salt
              磷酸鹽
              phosphate red mud
                乳酸
              lactic acid
              除塵污泥
              dust removal sludge
              硼酸鹽
              borates
              過氧化物
              peroxide
              金紅石rutile   麥芽糖
              malt sugar
              粉煤灰
              fly ash
              硼酸
              bromine borate
              磷酸
              ortho-phosphoric acid
              銀的回收物silver   蛋白質  碳黑水
              carbon black water
              溴鹽
              bromide salt
              涂料
              coating material
              鈦礦的分解物titanium mineral decomposition   植物油  
               
              鋅鹽
              zinc salt
              增塑劑
              plasticizer
              二氧化鈦titanium dioxide      

               
              微信掃描關注我們
              18906458967

              手機:18906458967

              電話:0535-2132537

              郵件:brxsb@yantaibairun.cn

              地址:山東省煙臺市福山區福桃路2808號

              狠狠综合久久久久综合网浪潮|亚洲成AV人片天堂网无码|国产精品一区二区尿失禁|亚洲无线观看国产高

              1. <track id="bimn6"><span id="bimn6"></span></track>

                      <tbody id="bimn6"></tbody>

                        <bdo id="bimn6"><dfn id="bimn6"><thead id="bimn6"></thead></dfn></bdo>

                        <nobr id="bimn6"></nobr>