1, a kind cement rotary kiln is limekiln; Rotary kiln can be divided for rotary kiln of cement rotary kiln, metallurgy chemical industry and lime rotary kiln, cement rotary kiln is cement grog dry method is mixed wet the main facility of product line. Cement kiln basically is used at grog of to calcine cement, kiln of cement of production of branch dry law and wet gateway of cement of attention of two kinds of big; notes manufacturing cement kiln cement rotary kiln.
2, cement rotary kiln is handed in in the burden below high temperature condition slow fast movement, its accessory equipment is safeguarded and level of pilot of hot industry system matters to the safety that rotary kiln runs and efficiency. The lubricant, moving condition that the maintenance of gearing is equipment mainly, trends detects and the precision of clench the teeth of size gear; The installation precision of belt support is deciding rotary kiln whether on the safe side moves, reasonable control should notice in moving each archives support roller bears the weight of of quantity allocation, support roller decorate form, hydraulic pressure to block annulus of fluctuation travel pressure and time, support roller get power, annulus the clearance of belt and bolster plate. The stand or fall of seal unit, immediate impact is versed in to rotary kiln heat the system is reached
. Strengthen rotary kiln to be safeguarded daily
Data is arrangedAnalysis, the government that is helpful for equipment works.
4, in decomposing a system beforehand, heat raw material is in as a result of heating power and physical action of the system local cause stock knot skin, accumulation and make expect shed backwater, caused consequently indigestion makings, jam. Decompose a lot of place inside the system to happen possibly beforehand indigestion makings, jam, but basically happen in one class tornado canister and its issue makings scraper-trough conveyer, 3 class and canister of 4 class tornado inside, various inside next makings canals and a powerful person of platform trap door, if discovery is not seasonable, can accumulate from next makings canals sometimes makings jam cone of intake air heater, canister of whole even tornado. In decompose furnace to reach its conduit of brae, join, change the part such as diameter canal is easy also because expect,flow not free is caused indigestion makings jam.
5, cause decompose a system beforehand knot skin, accumulate makings and the element that jam a lot of very complex, because this must go up from craft, on former fuel, try to analyse on heating power and physical action. Accumulate to what cause every time expect and jam should make detailed record, discuss, analysis, research, summary, in order to find out real reason, expect to prevent to accumulate in production later and jam and appear the measure that accumulates the place when expect and jamming to want to adopt provides important basis.
6, knot skin is high temperature stock is on wall of cone of canister of smoke room, ascendant conduit, various tornado felt crustaceous, serious place shows circularity to shrink mouth. And make with what burn frit along with felt knot skin number and ply increase gradually alternately, affect the ventilated, changed the stock inside intake air heater and air current traversal speed inside kiln and way then, finally because written guarantee the skin is severe and bring about jam.
The knot skin that on the high side of ① local temperature causes jams
If feed makings volume ignore big ignore small, coal fines is mixed inside kiln decompose the combustion inside furnace to be able to run not completely undertake 2 times burning inside intake air heater, systematic operation is not stabilized and cause decompose a system beforehand local temperature on the high side, make stock fluid photograph appears ahead of schedule, generation is stuck get together sexual material, conglutinate go up in the wall of system of intake air heater and form knot skin.
Emphasize one-sidedly to reduce the thermic load of kiln raising kiln to decompose rate, can bring about decompose furnace to had been measured with coal big, 2 fire scale is maladjusted. Because decompose furnace to had been measured with coal big, cause the temperature inside furnace taller, stock fluid photograph appears prematurely, rate of motion of tangent of the stock inside together with furnace is rapidder, centrifugal power is greater, cause melt content conglutinate very easily to be on furnace wall, form skin of the knot inside furnace: Because stock is in,decompose the retention period inside furnace shorter, the coal fines of excessive has not enough time to burn completely inside furnace, classics mixing chamber is taken to come combustion is formed 2 times inside canister of 4 class tornado, bring about cone of canister of 4 class tornado to reach next makings to be in charge of local temperature exorbitant, form knot skin very easily also to jam.
② answers the knot skin that ash causes to jam
Report collects dust, add wet tower to collect the stock that come down, had passed high temperature to react physico-chemically, some already made semi-manufactured goods even, when entering intake air heater afresh to collecting this kind of stock that come down so, want to control operation temperature strictly. If still press normal temperature to operate, so decompose reaction prematurely with respect to what cause stock very easily, fluid photograph appears ahead of schedule, have not enough time to arrive melt state is formed inside intake air heater inside kiln and conglutinate is on tornado canister wall, form knot skin, serious when bring about intake air heater to written guarantee the skin jams.
The air leak that decomposes a system beforehand is the one great harm that decomposes kiln beforehand, systematic air leak can reduce efficiency of tornado canister depart not only, raise hear rate, and still create warm-up system a when generation accumulating makings jams main reason.
If expect a powerful person of the canal that discharge ash is shut below intake air heater lax, burned-out or malfunction, will cannot have Suo Feng effect well. Gas of below one class is met from the course inside next makings canals, the stock that makes intake air heater collects next estate rises afresh again, cannot successful eduction, the loop is caused inside intake air heater. Because wind speed of next makings mouth place are higher, air current flotage is bigger, did not comparative makings pink of the amount won't arise sedimentation. What once expect,pink collects is overmuch had sedimentationed requirement, can be a big stock fall through discharging grey a powerful person to fall, create next material not all, split out of order, create next material very easily tubal accumulating makings jams, if discover processing is not seasonable, accumulate makings general to be blocked up to cone of intake air heater, and clear it is quite difficult to accumulate makings and processing to jam.
Motion of the air current inside tornado intake air heater is complex, add powdery bead particle size distribution is wide, the stock movement case that makes its in-house is more complex, random sex is bigger. If decompose a system beforehand sealed and bad, leakage enters air cooling, changed stock namely the athletic contrail inside intake air heater, reduced stock to use rate in have a change of luck of inward turning of intake air heater, leave mental efforts to reduce, cause stock detached inside intake air heater loss of efficiency, and make stock accumulation reachs next makings mouth place to be sent continuously jam.
Next makings mouth point are reached in bottom of cone of intake air heater, negative pressure is greater, produce serious air leak more easily, and the whirl of the place air current radius is small, centrifugal force is small, suffer the effect of air leak very easily, generation turbulence, go against the gas that forms the depart that enrage solid to shed Yi. What air leak can make the stock generation that has departed with air current larger is retrorse fly upwards, and bring about detached effect aggravation. Make return thereby mix degree to increase. When air leak is serious, the stock all of part of cone of almost whole intake air heater is in the condition of ” of in suspension of this kind of “ , only few one share stock can emit into the collect ash bucket below tornado canister inside, cause pyramidal of intake air heater extremely easily to accumulate consequently makings jam.
Accumulate those who expect because mechanical failure is caused,another reason that jam is. Be like:
Etc. These exotic jam easily in open kiln hind or be produced next makings canals or cone, the machine that creates intake air heater is accumulated makings jam. Additionally the canister inside tornado canister is out of shape cause accumulate a when expect jamming is to cause machinery of intake air heater to jam main reason. Because of inside the material of the canister pledges the structure cannot bear the concussion of long-term fast tepid air stream, be burned out easily to be out of shape. After the canister is out of shape inside, its are ventilated the area decreases, wind speed is increased, wind force decreases, bring about obstruction to increase consequently, the wind platoon inside tornado canister does not go out, cause wind makings short circuit very easily or accumulate makings jam. When canister of this class tornado it is paratactic two when, if among them inside the canister is burned flat, decrease through this tubes wind and makings, cause wind makings to distributing not all, the accretion with the wind that paratactic another tornado canister passes and relevant material, because expect inside this tornado canister,cause very easily so big and generation accumulating makings jams. The canister is out of shape inside cause indigestion makings jam basically happen in 3 class and canister of 4 class tornado, with canister of 4 class tornado most serious.
The internal diameter that the makings below tornado canister is in charge of is lesser, and the negative pressure inside the canister is greater, very easy because the platoon is grey,cause inside air leak, and because be out of shape,should discharge grey a powerful person and when roll is ineffective, bring about makings hour to discharge grey a powerful person not to turn, turn suddenly when stuff is old, cause big makings to be rushed down, form collapse makings phenomenon. Discharge grey a powerful person to get stuck dead sometimes additionally, when making stuff old, also do not turn, cause stock to the platoon does not go down and block next makings up dead to be in charge of inside next makings canals consequently.
① is cast makings is not seasonable
When decomposing furnace ignition to form Chang Huoyan, must cast in time makings, if cast makings is not seasonable, can cause very easily decompose systematic temperature beforehand exorbitant, and just cast when makings, expect the volume is minor, and bring about a system to written guarantee the skin jams.
Quantity of the makings below ② and kiln fast different situation
Run when kiln abnormal, hot industry system is not stable, need hits little accommodation train or turn slow when kiln, if decrease makings is not seasonable, very easy because feed makings quantity and kiln fast different situation, cause stock to pile up in room of kiln end smoke. Although rotary kiln still is in,run at this moment, but accumulation is in the stock of kiln end cannot seasonable transportation goes out, the stock of accumulation suffers conglutinate of high temperature melt to be on the wall of room of kiln end smoke, canopy makings phenomenon is formed in smoke room and kiln joint, cause smoke room and intake air heater of on one class to accumulate makings jam.
Too big or ③ platoon wind force is too small
Should discharge when wind force is larger, disclose rate of systematic air current beforehand taller, the centrifugal power that stock swings to mural face inside intake air heater is greater, circular bear increases, stock and time of contact of high temperature air current are longer, stick paste easily to be on wall of system of intake air heater, form piece loose to solid layer shape covering, cause knot skin to jam; and when the platoon wind force spends a hour, air current wind speed is reduced, make makings round hard break up, form collapse makings jam, and stock stops very easily also accumulation is inside horizontal join conduit, cause a level conduit accumulating makings jams.
Wind force of ④ kiln furnace allocates not all
Because operation adjustment is unreasonable, make kiln end shrinks buccal flashboard leaves to spend and be entered decompose furnace 2 times wind flashboard leaves degree undeserved, bring about kiln furnace wind force to allocate not all, if kiln end shrinks buccal wind speed is too low, or decompose furnace inferior or entrance wind speed is higher, cause stock very easily to be in decompose the knot inside the system to skin, canopy expects or collapse beforehand expect generation jams.
⑤ opens the platoon when stopping kiln wind force is undeserved
Because reason needs to stop,expect when stopping kiln, platoon wind force cannot substantially rapid shrinkage, if substantially bring down, make very easily stock because wind speed is inferior and stay inside horizontal conduit, cause accumulation. Should open kiln to cast afresh when makings, as a result of the platoon in the begining wind force passes small, accumulation the stock inside horizontal conduit cannot successful be taken away, increase what measure as next makings ceaselessly, the stock accumulation inside horizontal conduit is increasing, serious when bring about accumulation to jam.
Operation of ⑥ kiln furnace is not harmonious
If be mixed in rotary kiln,decompose the both ends on furnace to operate cannot around give attention to two or morethings, harmonious and consistent, if emphasize kiln one-sidedly inside ventilated, systematic negative pressure, raise kiln exorbitantly to decompose rate, can bring about two fire easily to cooperate bad, cause high temperature very easily to written guarantee skin, accumulation, canopy expects, collapse makings wait and jam system of intake air heater.
When undertaking the overhaul to system of intake air heater, must have serious and careful comprehensive examination to the system, must intake air heater inside each conduit all and sundry clear clean, the step that inspects the firebrick inside intake air heater is built, of concrete pouring etc firm, calorie of dead makings canal drops after preventing kiln. Before opening pit, answer all a powerful person that discharge ash to chase class to check, see roll agile, have die without card or damage, grey to various platoon a powerful person should undertake readjustments is rectified matching, had prevented light or overweight, cause mechanical roll to be ineffective or close lax form inside air leak, cause jam.
The place such as each will all inspection door, flange, grey valve shaft answers to close when opening pit close, because of,prevent outside air leak is caused indigestion makings jam, be over in processing indigestion after expect and jamming, scarcely wants to be opposite to pursue save trouble, convenient inspection door is sealed and lax. Undertaking to inspection door sealed when, answer to be sealed dead inside the door with firebrick above all, shut inspection door to use next fresh water glass of raw material mix into will be all meet unoccupied place severe.
The temperature after opening pit every time rises gradually, achieve when beginning to drop material temperature, want to be cast in time makings. Cast before makings, should the activity discharges grey a powerful person everywhere, enlightened and blowy device blows bottom of cone of intake air heater in case canopy makings. When normal volume is produced, should strict each regulations system, press operating rules operation, maintain temperature pressure reasonable distributing, strengthen operation responsibility heart, around give attention to two or morethings, coordinate closely, want to have foresight. Add decrease makings should seasonable, wind, coal, makings wants reasonable collocation, feed makings quantity and kiln fast want synchronism, because short or other reason are forced,decrease when makings, platoon wind is not decreased substantially come down, because use wind,prevent small and form indigestion makings, post class wants diligent observe connection, frequently examination, frequently, diligent activity.
Bring about decompose kiln to decompose a system beforehand beforehand knot skin, accumulate makings and the element that jam to have a lot of, want to had operated this kind of kiln so, must rigorous management, aggrandizement enrages an operation,
Intake air heater appears indigestion expect and jam should find out a reason to be handled in time, in order to prevent processing not seasonable and generation knot nugget, increase the difficulty of processing. When processing, use first compress air to blow, if accumulate,expect jam not serious, can blow, if jam serious, should stop makings stop kiln, but do not stop a wind, open manhole door, wait to be versed in into the pedestrian disclose is pounded with wind canal, long punty, whether does the examination after disclose is over clear clean everywhere, everywhere whether does pressure return to normal to just can warm up the makings below kiln. If because drop liner, drop a brick, drop coagulation clod and other sundry and cause indigestion makings jam, must stop makings, stop kiln, increase a wind, after waiting for intake air heater to cool, fang Kejin manages to the place to go inside intake air heater, clear after ending, just can open kiln to project makings production.
In the light of cement kiln many place written guarantee easily leather circumstance, be able to bear or endure material manufacturer also made analysis and solution in the light of this one phenomenon, have now for instance
The skin that fight a form is fireproof and pouring makings
, the carborundum capable person that adds inside is qualitative, do not give birth to the reaction since makings with cement, have effect of very good the skin that fight a form. And this are fireproof and pouring still added inside makings a few outside outside agent composition, can substantially reduce knot skin number, reduced cement raw material to wait for place in kiln end greatly thereby agglomerate phenomenon, avoided to stop kiln to clear the state that the knot encircles.
To make of cement mine use value integratedly to rise further, we undertake to its to calcine exercise is handled above all, the device that place should use is rotary kiln, and cement kiln is a function much, function is admirable, professional strong to calcine equipment, the article introduces this device in detail from character of its structure, advantage, service life and manufacturer home.
The main composition component of this equipment includes circuit of system of the device of the kiln head, seal unit, swing tower, component that prop up, tug, component that start, environmental protection, protection to wait, structural design is very reasonable, compact, moving stability is very tall, such equipment more be helpful for its operation and maintain.
1, the rate of cement kiln automation of new generation is very high, it is to give centrally makings, carry, lay the high-end equipment that originates in an organic whole, the operation that is an user so is used offerred a series of convenience.
2, this equipment installed dustproof device, and its sealing is first-rate, can put an end to dust effectively so discharge, its cost can be lower, won't cause any harm to the environment all round.
3, the 5——8 that its to calcine efficiency is conventional device times, its work efficiency is very so tall, and productivity is quite big, it is a high yield, efficient, high yield can admirable sex equipment.
4, this equipment won't appear in working process any noise, main reason is we installed noise to restrain circuit, the noise that it can give out to equipment rises to filter with screen action, make thereby the working mode that equipment realized to be changed without noise.
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