FNX型濃縮（分級(jí)）箱說(shuō)明書(shū).doc

FNX型高效斜管濃密（分級(jí)）箱使用說(shuō)明書(shū) 廣州粵有研礦物資源科技有限公司(廣州有色金屬研究院)一. 概述： 斜管濃密（分級(jí)）箱是一種在淺層沉降理論基礎(chǔ)上發(fā)展起來(lái)的高效沉降濃縮（分級(jí)）設(shè)備，由于其體積小，占地少，適用范圍廣，沉淀效率高，不需要?jiǎng)恿?，投資小，運(yùn)行成本低，安裝容易，近年來(lái)得到廣泛應(yīng)用。二. 設(shè)備結(jié)構(gòu)及原理：反沖水管底流排砂口沉降濃縮區(qū)溢流水槽斜管區(qū)給料區(qū)斜管濃密（分級(jí)）箱的結(jié)構(gòu)如圖1所示： 圖1. 設(shè)備結(jié)構(gòu)示意圖正常運(yùn)轉(zhuǎn)中的濃密（分級(jí)）箱，在沉降濃縮區(qū)的上部會(huì)形成一個(gè)相對(duì)動(dòng)態(tài)平衡的懸浮過(guò)濾層。礦漿由給料區(qū)進(jìn)入沉降濃縮區(qū)后，礦漿中粒徑較大的顆粒，由于其沉降末速較大，克服水流的脈動(dòng)力，經(jīng)沉降濃縮區(qū)懸浮過(guò)濾層過(guò)濾，很快沉淀進(jìn)入底部排料口附近；未能克服水流脈動(dòng)力而沉淀的粒徑較小的顆粒，隨著上升水流進(jìn)入斜管區(qū)。斜管區(qū)按一定角度填充了六角型薄壁多孔斜管，將水流分成許多小的沉淀單元。由于斜管濕周大，水力半徑小，因此每根斜管中的雷諾數(shù)很小（200，雷諾數(shù)反應(yīng)了流動(dòng)過(guò)程中水流慣性力與粘性力的比值），處于層流狀態(tài)，顆粒在其中的沉降過(guò)程沒(méi)有紊流干擾，按層流水力沉降規(guī)律沉降。當(dāng)進(jìn)入斜管區(qū)的較細(xì)顆粒，在層流水力沉降條件下沉降到達(dá)斜管壁上，積累到一定量以后，在重力的作用下，沿斜管壁下滑至沉降濃縮區(qū)，根據(jù)分離粒度、處理能力設(shè)計(jì)的要求，未能在斜管區(qū)沉降的微細(xì)顆粒，將隨著溢流排出，從而實(shí)現(xiàn)了分級(jí)與沉淀濃縮過(guò)程。特殊設(shè)計(jì)的多級(jí)濃縮（分級(jí)）箱則將給料礦漿給入粗分級(jí)區(qū)按干涉沉降原理，首先將粗粒分離沉淀，然后礦漿流才進(jìn)入斜管區(qū)進(jìn)行細(xì)粒分級(jí)濃縮，分級(jí)原理和實(shí)現(xiàn)過(guò)程和以上相同。三. 設(shè)備特點(diǎn) FNX系列高效斜管濃密（分級(jí)）箱和傳統(tǒng)周邊（中心）傳動(dòng)型濃密機(jī)相比，具有體積小、效率高、可在同一組設(shè)備上實(shí)現(xiàn)分級(jí)兼濃密二種功能，也可作為單獨(dú)的濃縮設(shè)備使用，具有安裝方便、配置靈活、可控性好等特點(diǎn)。特別是可根據(jù)不同礦山的實(shí)際情況靈活地在選礦廠內(nèi)配置，而無(wú)需將礦漿自流到廠外濃縮后又再用砂泵揚(yáng)送回廠內(nèi)進(jìn)處理，同時(shí)省卻了用水泵才能回水利用的麻煩，大大地節(jié)省了能耗，是較為理想的礦山濃密（分級(jí)）設(shè)備。在有條件的礦山，還可為實(shí)現(xiàn)高濃度尾礦輸送、回水廠內(nèi)直接利用，為進(jìn)一步降低能耗和礦漿輸送及回水成本創(chuàng)造條件。四技術(shù)參數(shù)型號(hào)沉降面積容積/m3斜管內(nèi)切圓直徑/mm斜管傾斜角度/重量外形尺寸FNX-1010平方米28 35604.9T6700x2784x4485五安裝及注意事項(xiàng)：1設(shè)備須安裝在堅(jiān)實(shí)、水平的基礎(chǔ)之上。選廠在建濃密機(jī)基礎(chǔ)時(shí)，應(yīng)已確定好濃密機(jī)的擺放方向。根據(jù)已建好的濃密機(jī)基礎(chǔ)，結(jié)合設(shè)備外形尺寸圖，按如下步驟安裝： 每根支撐柱兩個(gè)端面均有一塊方形鋼板，鋼板上有螺栓孔的一端朝上。 確定六根支撐柱的位置。俯視示意圖如下： 用連接角鋼和螺栓將六根支撐柱連接起來(lái)，先裝水平的角鋼，再裝交叉的。 所有的螺栓先不要上緊，以利于調(diào)整。等斜管主體吊裝到位，所有螺栓全部連接上后，再上緊。 角鐵交叉連接時(shí)，方板夾在兩條角鋼之間。螺栓孔對(duì)不上時(shí)，用一根長(zhǎng)一點(diǎn)（半米長(zhǎng)足夠了）的粗鋼筋，一端加熱敲成尖狀，插進(jìn)螺栓孔里撬動(dòng)來(lái)對(duì)孔。 將六根支撐柱和十八根角鋼連接成一個(gè)長(zhǎng)方體結(jié)構(gòu)后，用吊車將大錐斗調(diào)入長(zhǎng)方體結(jié)構(gòu)中，然后將濃密機(jī)主體吊裝到位，對(duì)好支撐柱上端面的螺栓孔。 將大錐斗的大法蘭用布清理干凈，把密封墊放在法蘭上，打好螺栓孔，密封墊之間的拼接縫用裁紙刀切成長(zhǎng)斜口。分段拿掉密封墊，在法蘭上用玻璃膠打一圈（注意：膠要連續(xù)），然后再在每個(gè)螺絲孔周圍打一圈，打好后將密封墊對(duì)回原位置。在密封墊的上面再用玻璃膠打一圈，在每個(gè)螺栓孔周圍打一圈，在密封墊的接口處要沿接口多打一點(diǎn)玻璃膠。將大錐斗吊裝到斜管濃密機(jī)主體上，注意法蘭上的對(duì)位標(biāo)記，對(duì)好位后用螺栓連接。將整臺(tái)設(shè)備上的螺栓全部擰緊。 安裝膠管閥和四分球閥。膠管閥的調(diào)節(jié)手輪應(yīng)朝同一個(gè)側(cè)面方向，以利于調(diào)節(jié)。四分球閥的另一端應(yīng)接供水管。 用水平管校正溢流水邊（斜管外面那一圈，不是最外圈）的水平度，要求所有的溢流水邊都在同一水平面上。 濃密機(jī)底流出口的膠管閥最好不要直接接管道進(jìn)入下一級(jí)選別流程，以防濃密機(jī)底流堵塞了便于清通。建議在膠管閥出口下方做個(gè)方斗，再?gòu)姆蕉愤吷弦苓M(jìn)入下一級(jí)選別流程，如下圖所示。2為防止陽(yáng)光暴曬加速斜管老化，影響使用壽命，應(yīng)將濃密（分級(jí)）箱安裝在陽(yáng)光不能直射的地方；室外安裝使用時(shí) ，應(yīng)搭建遮陽(yáng)棚或保持機(jī)內(nèi)液面淹沒(méi)斜管頂面；當(dāng)設(shè)備停用時(shí)，要將設(shè)備清洗干凈后注滿清水，并保持水面高過(guò)斜管頂面。 3要防止5mm粗粒和木渣等雜物給入濃密（分級(jí)）箱（可能堵塞排料口），應(yīng)在給料前用篩網(wǎng)隔除并定期進(jìn)行清理。4嚴(yán)禁踩壓濃密機(jī)內(nèi)斜管。5反沖水壓應(yīng)保持0.2MPa。六 設(shè)備使用：1每次開(kāi)機(jī)前，檢查排礦口的閥門是否暢通，不得在閥門堵塞的情況下給料開(kāi)機(jī)。2開(kāi)機(jī)順序：開(kāi)啟排砂閥給料調(diào)節(jié)各臺(tái)濃密（分級(jí)）箱給料礦漿量平衡。3停機(jī)順序：停止給料待濃密（分級(jí)）箱中液面低于塑料斜管下端面時(shí)，用水把塑料斜管沖洗干凈排砂閥排出清水時(shí)，即可停機(jī)。4當(dāng)添加絮凝劑輔助沉淀時(shí)，根據(jù)所處理礦漿中固體含量的多少，結(jié)合礦漿流量和溢流水的澄清度調(diào)節(jié)絮凝劑的添加量，使溢流水質(zhì)能滿足生產(chǎn)使用要求。5排砂閥在正常生產(chǎn)時(shí)應(yīng)保持在全打開(kāi)的狀態(tài)下，出現(xiàn)堵塞要及時(shí)清通，排礦濃度靠選定合適出口大小的沉砂嘴來(lái)調(diào)節(jié)（設(shè)備出廠時(shí)配備了12、15兩種口徑的沉砂嘴，如排礦濃度不合適再定做其它規(guī)格的沉砂嘴）。6當(dāng)?shù)琢髋诺V口排礦困難時(shí)，開(kāi)啟反沖水閥門輔助排礦。7濃密機(jī)存礦體積有限，因此，對(duì)非連續(xù)生產(chǎn)或非連續(xù)排料的廠礦，正常生產(chǎn)時(shí)，每個(gè)班至少排礦二次，以免沉砂堆積，堵塞斜管。8當(dāng)給料泡沫較多，配置有消泡噴頭時(shí)，要定期檢查消泡噴頭是否暢通。9為防止斜管堵塞，建議每個(gè)月（或停機(jī)檢修時(shí)）對(duì)設(shè)備清理維護(hù)一次：將濃密（分級(jí)）箱中的水位放至斜管下端面以下，用水順斜管的管孔方向逐一沖洗，將斜管內(nèi)的沉積物清理干凈。10長(zhǎng)時(shí)間停機(jī)時(shí)，必須排干凈濃密（分級(jí)）箱內(nèi)泥砂，將斜管沖洗干凈，然后注滿清水，并保持水面高于塑料斜管頂部，以避免塑料斜管老化而縮短使用壽命。生產(chǎn)單位：廣州粵有研礦物資源科技有限公司(廣州有色金屬研究院)地址：廣州市天河區(qū)長(zhǎng)興路363號(hào)聯(lián)系人：王威、陳俊明、鄭承美電話61086392傳真址： 郵編：510651E-mail：FNX high efficient inclined tube thickening(classification) boxService manualGuangzhou Technology Ltd. of Yueyouyan Mineral Resources(Guangzhou Research Institute of Non-ferrous Metals)1.SummaryInclined tube thickening(classification) box is a high efficient sedimentation equipment which was developed based on the shallow layer sedimentation theory.It has been widely used rencent years because of its small size and less land occupation and wide applicability and high deposition efficiency and no dynamic and less investment and low operation cost and easy installation.2.Structure and principle of the equipmentThe structure of the inclined tube thickening(classification) box as fig 1 showed:Inclined tube areaFeeding areaSpilled flumeSedimentation concentration areaRecoil pipeUnderflow discharge outletFig 1 Schematic diagram of equipments structureA relatively dynamic balanced suspension filtration chromatography can be formed in the upper of the normal operated thickening(classification) box.After the pulp entering into the sedimentation concentration area from feeding area, the larger size particles in the pulp will overcome the impulsive pressure of the water flow and filtrated by suspension filtration chromatography of the Sedimentation concentration area and deposit quickly,entering into the nearby underflow discharge outlet because of its large settling velocity.The smaller size particles which cant overcome the impulsive pressure of the water flow will enter into the inclined tube area with the upward flow.Hexagonal thin porous inclined tube were filled according to a certain angle in inclined tube area which separate the water flow into several small settling unit.Because of the large wet circle of the inclined tube and high hydraulic radius,the reynolds number of each inclined tube is very small(200, reynolds number responses the ratio of flow inertia force and viscous force in the flow process.).In the laminar state,there is no turbulent interference in particless settling process which settled according to laminar hydraulic sedimentation law.When the smaller size particles enter into the inclined tube area,they settled on the wall of the inclined tube on condition of laminar hydraulic sedimentation.After quantitative accumulation,the smaller size particles downslide into sedimentation concentration area under the action of gravity.According to the design demand of separation size and treatment ability,the fine particles which cant settle in the inclined tube area will discharge with the overflow.Thus the process of classification ang sedimentation concentration will be achieved.Special designed multistage thickening(classification) box will give the feeding pulp into the rough classification area according to the interference settling principle, first will separate and deposite the large size particles, then the pulp flow will enter the inclined tube area to carry on the fine grain classification concentration, the classification principle and the realization process is same as the above.3. Equipment characteristicComparing the FNX series highly effective inclined tube thickening(classification) box with the traditional peripheral (center) transmission thickener,the former has sevral good characteristics of small volume, high efficiency, realizing two functions of classification and thickening on the identical group equipment, using as the independent concentration equipment, conveniently installment, nimble disposition, good controllability and so on.Specially may dispose nimbly in the ore dressing plant according to the different mine the actual situation,with no need that the pulp to flow automatically to the factory outside to concentrate and then using the sand pump to raise again into the factory to process.Simultaneously it saves the trouble that using backwater only by pump and saves the energy consumption greatly.It is an ideal mine thickening(classification) equipment.In some conditional mine, it also can realize high potency debris transportation and backwater useing directly in the factory,which creates the condition for further reducing the energy consumption and the cost of pulp and backwater transportation. 4. Equipment setup and matters needing attention1) The equipment must install on the solid and level foundation.Before constructing the thickener foundation,processing plant should determine the place direction of the thickener.According to the constructed thickener foundation and the equipment contour dimensional drawing, installing as the following step:Each props two surfaces have the square steel plate, the sueface on the steel plate which has a screw aperture should face above. Determine the position of the six roots prop.Overlooking schematic drawing to be as follows: Connect the six roots prop with the connection angle steel and the screw.Install the level angle steel first , then the overlapping. All screws need not applied (hand to twist line) first, favors the adjustment.While the inclined tubes main body hoist the right position, all screws connect completely, then applied. When corner iron cross connected, the square plate clamps between two angle steels.When screw aperture to not on, using a long (half meter is long enough) thick steel bar, one of the end heating knocks to be sharp shape,then insert into the screw aperture to move in the hole. After Connecting six roots prop with 18 angle steels to be a cuboid structure,using the crane to lay the big awl calls in the cuboid structure, then lay aside the main body on the right position, make sure the prop on the screw apertures surface be on the right place. Clean the big flange with the cloth, place the gasket on the flange, hit the screw aperture.The joint between the gasket should sliver the long slanting mouth with the paper knife.Pick off the gasket partition,hit on the flange with the glass cement (attention: The cement must be continuously), then hit continuously around each screw aperture again and return the gasket the original position. Hit on the gasket by the glass cement, hit around each screw aperture, must hit more glass cement in the gasket connection place along the connection.After ten minutes, waits the glass cement to be dryed, fights the big awl onto the main body of inclined tube thickener.Pay attention to the position mark on the flange, connecting after the good position with the screw. Screw tight all the screw of the equipment. Install the rubber tube valve and four minutes ball valves.The adjustment handwheel of rubber tube valve should face the identical side direction, favor the adjustment.Another end of four minute ball valve should connect delivery pipes. Use plain tube to adjust the levelness of overflow waters edge (outside slope tube but most addendum circle), requests all overflow waters edge in the identical horizontal plane.If not, adjust the PP boards of overflow four board. Finally insert the inclined tube into the thickening (clasification)box (maintain level of each group of slope tubes between end surface to achieve desired effect), complete the equipment setup. Rubber tube valve under the thickener engine base outflux should better not meet the pipeline to enter the level classification flow directly, guarded against the thickener undercurrent to stop up advantageous for lucid and coherent.Suggesting making a square bucket underneath the rubber tube valve exportation, enter the next level classification flow from square bucket, as the following chart shows.2)In order to prevent the sunlight insolation accelerating slope tube gets older, affect the service life, should install the box in the place where there is no sunlight; When installing the outside, should build the visor awning or the maintenance within the aircraft liquid level submergence slope tube top; When the equipment stop using, must clean the equipment clean and filled with clear water, and maintains the water surface higher than slope tube top.3)Must prevent 5mm large grain and wooden dregs give into thickening (classification) box (possible to stop up dump mouth), should separate with the strainer eliminates and carries on the cleaning up regularly.4)Forbid strictly stepping on the thickener the slope tube.5)The recoil hydraulic pressure should maintain 0.2Mpa.5.Equipment use1) Before starting each time, inspect throat valve whether unimpeded, forbiding starting when the valve stops up.2) Starting order: opening row of sand valve feeding- adjusting the balance of material pulp quantity for material in thickening (classification) box.3) Engine off order: stop feeding- using water to flush the plastic slope tube cleanly after liquid level is lower than under the plastic slope tube when discharging the clear water, then engine off.4) When adding flocculant for assistance precipitation,according to the solid content in the pulp, adjust flocculant recruitment according to the union pulp current capacity and the overflow water transparency to make the overflow water satisfy the production operation requirements.5)When regular production,row of sand valve should maintain unobstructedly, lucid and coherent promptly if jammed, its opening size should maintain the dump speed to be continuously unobstructed, the density conforms to the design to request to be limited to.6) When undercurrent dicharge the ore difficulty, opening recoil water valve gate to auxiliary discharge.7) For the limited volume of the thickener to save the or