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防窜仓往复式给煤机的设计
防窜仓
往复
设计
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reciprocation stokers present situationreciprocation types stoker its own structure superiority 1) structure simple, the service quantity is small In the reciprocation type stoker, the electric motor and thereduction gear use the standard letter, other majorities are theweldments, the vulnerable part are few, uses under the coal mineextreme condition, its serviceability deeply measure unit to be usedshigh praise. 2) the performance is stable The reciprocation type stoker to the coal trademark, the sizecomposition, request and so on moisture content, physical property islax, when comes to expect the non-uniformity, the moisture contentdoes not stabilize also clamps has the big lump coal, Rubber Belt, thewood and the steel wire isochronism, still could the normal work. 3) the noise is low The reciprocation type stoker right and wrong Vibration has thesource for material equipment. its noise only to have the electricmotor and the reduction gear, but these two noises very are all low.Especially in the mine shaft or Bunker and so on the enclosed place,the noise is unable to proliferate, this point is electricallyoperated is unable for the material machine to achieve. 4) installs conveniently, is highly small The reciprocation type stoker generally installs in Bunker thewarehouse mouth, does not need other configuration warehouse mouthstrobe distill trough and the support of motor, the installment mayreach ones goal instantly, the adjustment work load is small, butelectrically operated stoker because cannot directly withstand thewarehouse pressure, needs moreover to place the warehouse mouthtransition Chute under, compares, the reciprocation type stoker holdshighly slightly, has saved the floor space and the investment. developments large-scale reciprocation type stoker necessity Is precisely because the reciprocation type stoker has theabove characteristic, we believed, in the coal mine mine shaft and theground production system pharynx and larynx link, and in other needcontrol noises links, should the first choice reciprocation typestoker. The expanded series reciprocation type stoker should satisfythe following request. 1) satisfies the large-scale mine pit productivity the request Along with the our country coal mine pit unceasing expansion,the hour productivity also is increasing, for example: The well is 2.4million t/a, 3 million t/a. 4 (XI ten thousand t/a mine pit, hourproductivity separately for 42 h, 928t/h, 1238t/h. The mine pit hourproductivity increase, the request enhances the stoker theproductivity. At present, the mine pit mine shaft raw coaltransportation more and more many uses the adhesive tape conveyer, inother words, the mine shaft used the stoker the link to increase.Although may use many small models stoker jointly to arrange satisfiesthe big productivity the request, but arranges many stokers to need toexpand Weighed the room, the increase project investment moreover manyarrangement, the system reliability reduces, the noise increases, hasthe problem the probability also relatively to increase. brings thecertain trouble to the service. Loads a car the system in the useadhesive tape conveyer, is in the ground production system uses stokermost places, moreover the request gives the coal ability quite to bebig. Loads a car the system if uses Electric vibrator for the material machine,not only increased has loaded a car moreover the noise very to behighly big. Installs the large-scale reciprocation type stoker, notonly causes the hour productivity to increase, moreover also forloaded a car the system equipment shaping to provide has been biggermay choose the scope. 2) loads the belt type necessary with the host well bottom of the well(beat) the conveyer The main well bottom of the well loads the belt type (beat)the quota conveyer type bottom of the well charging gear developmenttendency, lists as the coal key scientific research item, when thequota conveyer idling speed loading is requested for the coalequipment ability 801) above ttb, the existing K series stoker cannotmeet this requirements. Although also may use for the material strobe material, but for the material strobe for estimated easily the rawcoal moisture, the granularity influence, causes for the materialnon-uniformity. But the large-scale reciprocation type stoker maysatisfy this request large-scale reciprocation types deceive the coal machinestructural style characteristic We through carry on the analysis to the former stokerinvestigation, has carried on the thorough computation to thestructure pattern, to the essential stress spot like tank, the doubleconnecting rod, the base held the roller and so on to carry on thestress analysis, carried on the examination computation using thefinite element principle. Altogether has following fivecharacteristics. 1) entire machine uses the frame Themselves to be possible to unload thetype Because considered the mine shaft transportation theconvenience and the mine shaft industry and mining limit, entiremachine uses a minute writing style, moreover considered the mineshaft welding inconvenient, uses the bolt vice- joint, the side bar toconsider the external drum the possibility and the endophragm wear theneed, lays down in the flank Reinforced inside Lining, strengthened thewhole rigidity and the intensity. 2) increases Daoban the guidance and the blocking In makes the reciprocal motion under Daoban to additionallybuild several groups of requests rollers wheel, on the one handchanges Daoban the sliding friction for to roll the friction, reducedthe attrition, on the other hand also causes Daoban the rigidityenhancement. Moreover, for prevented Daoban is transporting Moves in the process to have runs the leaning phenomenon, inDaoban two sides installments guidance wheel. 3) uses the hyperbolic trough drive type The stoker drive uses the hard tooth face reduction gear,ordinary plug shaft coupling (but non- fluid strength coupler), doubleoutput shaft form, like this, not only reduced the cost moreover tocause the unilateral Axis radial direction load only is the bottomsurface thrust force one half, is carried the condition bigimprovement, moreover, further enhanced the stability which Daobanmoved. 4) carries on the optimization to the Daoban structure Formerly K series stoker plate strobe, the material had manyproblems in shipping, for estimated could not enhance the key also layin this. Therefore, we have carried on the optimization to Daoban,designs for the steps and ladders, Not only caused the material process load to enlarge, moreoverthe Daoban itself intensity also obtained further enhances. 5) changes the fan strobe for the manual plate strobe Controls expects how many the key to be decided by the strobe,the strobe always uses the fan structure in the former K series, butdiscovered from the field use, the fan strobe and the warehouse wallfrequently bump, the scene often when installs the strobe can not butknock the warehouse wall a part, causes the warehouse wall theintensity to weaken, based on, we uses the manual plate strobe,matches the guidance wheel under the damper plate, simultaneously hasthe positioning device on the axis. economic efficiency analysis In needs 2000t/under the h transport capacity condition,arranges two University of Taiwan stoker with simultaneously toarrange four K 14 stokers or four Electric vibrator stokers its economicefficiency quite is as follows. 1) Weighed proclaims the mining quantity The big Weighed room not only causes the mining quantity toincrease, moreover can bring many negative effects along with it, fourreciprocation types stoker union arrangement, should consider betweenthe equipment must remain has the overhaul space, holds Zuo the space,like this, its Weighed room resilience is bigger than two University ofTaiwan reciprocation type stoker; But if uses four vibrations todeceive the material machine, needs the height difference in a bigway, moreover because its noise is big, the small Weighed room cannotsatisfy its request. Speaking of this parameter, arranges twoUniversity of Taiwan stoker the plan is most economical. 2) power consumption comparison The large-scale reciprocation type stoker power is notcertainly big, two University of Taiwan stoker power consumption andfour K 14 stokers or Electric vibrator the stoker is nearly impartial. 3) equipment operating cost comparison Large-scale stoker vulnerable very few, moreover because usesthe standard hard tooth face reduction gear, causes the servicequantity minimum, but four stokers because number increasing, themaintenance cost also is corresponding is large-scale stoker twotimes, Electric vibrator the stoker is unable in this point with it to compare. Develops the large-scale reciprocation type stoker, met our countrycoal need to develop, expanded in the coal mine production systemdesign to give the coal equipment the shaping scope. In particular inJining two mine pits success uses, for me The country provided has been new large-scale for the coalequipment, should give the vigorously promoted use. 中文译文往复给煤机现状一、往复式给煤机其自身结构的优越性1) 结构简单，维修量小在往复式给煤机中，电动机和减速器均采用标准件，其余大部分是焊接件，易损部件少，用在煤矿恶劣条件下，其适用性深受使用单位的好评。2 )性能稳定往复式给煤机对煤的牌号，粒度组成，水分、物理性质等要求不严，当来料不均匀，水分不稳定且夹有大块煤、橡胶带、木头及钢丝等时，仍能正常工作。3 )噪音低往复式给煤机是非振动式给料设备其噪音发生源只有电动机和减速器，而这两个的噪音都很低。尤其在井下或煤仓等封闭型场所，噪音无法扩散，这一点是电动给料机所无法达到的。4 )安装方便、高度小往复式给煤机一般安装在煤仓仓口，不需另外配制仓口闸门馏槽及电动机支座，安装可一步到位，调整工作量小，而电动给煤机由于不能直接承受仓压，需要另外安放仓口过渡溜槽，相比之下，往复式给煤机占有高度小，节省了建筑面积和投资。二、研制大型往复式给煤机的必要性正是由于往复式给煤机具有上述的特点，我们认为，在煤矿井下和地面生产系统的咽喉环节，及在其他需要控制噪音的环节，应首选往复式给煤机。扩大系列的往复式给煤机应满足下列要求。1 )满足大型矿井生产能力的要求随着我国煤矿井型的不断扩大，小时生产能力也在增加，例如：井型为240万ta，300万ta。4(万ta的矿井，小时生产能力分别为了42“h，928th，1238th。矿井小时生产能力的增加，要求提高给煤机的生产能力。目前，矿井井下原煤运输越来越多地采用胶带输送机，也就是说，井下使用给煤机的环节增加了。虽然可以采用多台小型号给煤机联合布置来满足大生产能力的要求，但布置多台给煤机需要扩大硐室，增加工程投资 况且多台布置，系统可靠性降低，噪音增大，出问题的机率也相对增多给维修带来一定的麻烦。在使用胶带输送机的装车系统，是地面生产系统中使用给煤机最多的地方，而且要求给煤能力比较大。装车系统若采用电振给料机，不但增加了装车的高度而且噪音很大。安装大型往复式给煤机，不仅使小时生产能力增大，而且也为装车系统设备的选型提供了更大的可选范围。2) 与主井井底装载带式(板式)输送机配套主井井底装载带式(板式)定量输送机式井底装载设备的发展趋势，被列为煤炭重点科研项
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