clinker cooler excel heat balance sheet,excel worksheet - greenhouse gas protocol. 31, 10, clinker sold, [t/yr], amount of clinker sold to other plants or companies.. 103, 45a, co2 from room heating / cooling, [t co2/yr], sum of co2 emissions from... 416, 424, balance of emission rights held and subject emissions (+ = long;... read more..clinker coolers | heat transfer | building engineering,amount of air required is between 2.3 to 3.3 kg/kg of clinker but cooling air fans capacity is designed to allow the introduction of 4.5 kg of air per kg of clinker. specific load on grate cooler built after 1975 is 30-40 metric ton per dat per sq. meter grate area, which was.
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table2: mass and heat balance of clinker cooler sn description flow temp cp heat kg/kg clk oc kcal/kg oc clk heat input 1 hot clinker 1.00 1400 0.261 366 2 cooling air 4.05 31 0.238 30 total 5.05 396 heat output 3 cooler exhaust 2.30 425 0.247 241 4 tertiary air 0.40 970 0.259 99 5 secondary 0.12 970 0.259 30 6 clinker leaving cooler 1.00 73 0.190 14
heat balance heat output k-1 k-2 k-3 k-4 k-5 heat in clinker leaving cooler (kcal/kg clk) 31.7 35.4 30.0 49.0 29.3 heat of reaction (kcal/kg clk) 402.2 403.0 400.0 400.0 397.0 heat in return dust (kcal/kg clk) 10.5 7.9 4.6 13.5 19.8 heat in evaporated moisture (from kiln feed & coal) at preheat exit (kcal/kg clk)
heat balanceheat balancein outclinker (hck1) clinker (hck2)cooling air (shfi) secondary air (hsa)tertiary air (hta)coal mill air (hcm)raw mill air (hrm)vent air (hva)wall losses (hwl)in = outsecondary air heat : calculated by differencegood to validate it against kiln heat balancesecondary air temperature: calculated from secondary air heat
kiln and the total heat transferred to the cooler as presented in equation 2.1. cooler efficiency = (heat input – heat losses) / heat input 2.1 heat input: this denotes the heat content of clinker from kiln (clinker temperature = 1450°c) and cooler air (ambient air).
the clinker cooler exhaust is at a temperature near 200°c and is typically used for preheating the kiln or other parts of the clinker production process. the orc and kalina cycles have also been considered for use to recover the waste heat from the clinker cooler. the sco 2 cycle could also be considered for both waste heat streams.
heat is provided by fuel combustion 3. ambient air is supplied through the clinker cooler, air provides cooling medium to cool the clinker produced from the kiln, and the heated air is now directed to the kiln to provide the combustion oxygen and the heating gases for the preheater tower process 4.
heat input into the cooler includes the following, q ic = q h + q 6 where q h (=c cl · (t cl1 − t a)) is the sensible heat of clinker from kiln to cooler, in kj/kg. heat output from the cooler includes the following, q oc = q pk + q pc + q 8 + q 9 where q pk (=a 2 · c a · (t a2 − t a)) is the recovery heat of kiln secondary air, in kj/kg.
sencible heat of cooler vent gas 7.3 radiation heat on kiln surface 30.4 radiation heat on preheater surface 8.0 radiation heat on cooler surface 4.0 unaccountable heat losses 167.5 input total 873.8 output total 873.8 base of temperature : ambient air temperature base of heat amount : kcal per kg of clinker (kcal/kg-cl) clinker cooler : grate
similarly, it is important to base the cooler efficiency calculations on realistic clinker temperature references. we normally reference the cooler efficiency at 1450°c for a true, real-world calculation as per the vdz standard. referencing cooler efficiency at lower temperatures, such as 1400°c, artificially increases the cooler efficiency.
1.2.1 based on normal clinker granulation ratio, normal kiln speed, hot kiln opening position, vertical distance between kiln and grate cooler, and the distance between grate cooler and kiln axis, the drop point of grate cooler can be accurately determined by comprehensive thermodynamic and physical calculation, and then the fixed bed grate
at this stage, to preserve the clinker mineral structure, that is, its quality, the clinker has to be cooled very quickly to a temperature of approximately 150°c. a large amount of ambient air is introduced through seven clinker cooler fans to achieve the target temperature outlet. the ambient air is heated up to 290°c.
second, the clinker is cooled in the cooler to its final exit temperature by induced cooling air through the cooler, which is wholly or partially, according to the type of the cooler, is used as pre-heated combustion air to the rotary kiln and calciner  .the advantages of the dry process with pre-calciner can be summarized as follows:• it
capture a portion of the waste heat from the cooler end of the clinker kiln and use this to heat up the incoming raw materials and fuel. this is shown in figure 1 as the thin solid lines. the waste heat is sometimes de-tempered prior to use in warming up the incoming coal to the milling machines.
cement kiln heat balance calculation excel sheet - caiman mining. how can i calculate the heat balance in cement sep 24, 2006 · best answer: in a kiln there are three zones: the klinkering, the calcining and the preheating zones. cement kiln heat balance xls sheet - caiman mining. heat balance excel sheet – detailed calculations.
rotary dryer heat and mass balance for iron ore. posts related to mass and heat balance in rotary kiln calculation cement plants raw mill mass balance cement mills mass energy balance gold ore crusher energy balance in raw mills energy balance in kiln and cooler heat, mass, example2 mass. heat and mass balance calculations for rotary kiln
the milling process generates heat and excessive mill temperatures are undesirable. it is clearly helpful, therefore, if the clinker is cool as it enters the mill. from an environmental and a cost viewpoint, the cooler reduces energy consumption by extracting heat from the clinker, enabling it to be used to heat
heat balance _ example an example of a heat balance for a vertical mill case 200 t/h 8 kwh/t(net) drying from 8 to 0.5 moisture in feed dry water in feed recirc mat. #) grinding heat (a) gas false air ( ) water injection total in 302 30 252 20 0.242 0.244 1376 18405 147 0 21149 200 17.4 flow t/h 20 20 temp c cp kcal/kgc 0.218 1 872 348
heat balance 2 clinker and cement clinker and cement. benefit of kiln heat balance kiln coolers heat balance sunflowerschoolcoin kiln dryer heat balance i ll post the similar heat and mass balance for counter current air product rotary drum. calculation of heat balance i n cement mill henan mining.
dec 24, 2012 article on kiln heat and mass balance grinding mill china key words】： rotary kiln mass-heat balance •calculation of kiln heat and mass balance studies, cooler optimization, airflow measurements, calculation of energy balance in cement clinker production in mass balance of a kiln system mass balance. [24/7 online] rotary kilns
nov 29 2018 process technology b05 pt ii c09 heat balance heat balances of kilns and coolers and related topics 4 heat balance calculations 47 heat due to partly decarbonized material 47 heat due to partly decarbonized material decomposition of carbonates in an essential heat effect in a cement kiln usually one thinks of the two. get details
cement ball mill heat balance .xls file. of leakage in the kilns, modifying the equipment to recover heat from the .. in fig. 4, process b is a closed circuit grinding process combining an air separator and a ball mill . table 3.1 shows the heat balance of 43 sp kilns and 8 nsp kilns. read more
the cooling of the clinker is modelled by a gassolid series of crosscurrent contacting stages fully mixed for the calculation of the temperatures of the clinker and
critical speed (nc) & mill speed (n) degree of filling (%df) maximum ball size (mbs) arm of gravity (a) net power consumption (pn) gross power consumption (pg)
clinker calcination is the most crucial part of the whole process of cement manufacturing. at this stage, ground raw materials will be sent into the cement kiln and be heated at a high temperature to produce chemical reactions with each other, eventually forming clinker. in addition, clinkers that just complete the calcination will have a high temperature, thus a cooling machine is usually placed behind the rotary kiln so that the clinker can go directly into the cooler