cooler measurement and heat balance in kiln

Analysis of energy balance was used to determine the sources of heat loss from kiln system. The major heat loss is Heat losses by the kiln exhaust gas (19.15%) Hot air from cooler stack (5.61%),...

These two zones serve to increase the temperature of the pellets prior to the kiln, and here the main part of the oxidation to hematite takes place [9]. Oxidation of the pellets releases a large amount of heat – this is the main heat source in the process[5]. The heated pellet bed then enters the rotary kiln, shown schematically in Figure 2.2.

Unfortunately, the more efficient (in specific fuel consumption) a kiln becomes, the higher tlre cooler exit losses will be. The heat-balance examples show this clearly where the inefficient wet-process kiln shows 3.3% cooler losses compared to the more efficient preheater kiln which shows 18.4% losses. Lower kiln radiation losses by:

of heat balance. So, all the necessary parameters were obtained (CCR), measured (field) and tabulated as recorded on Tables 3.1, 3.2, 3.3 and 3.4 respectively. 3.2.2 Parameters Measurement from the Cooler. The measurements taken for cooler heat balance are cooler air fan flow, cooler excess air fan

8 Slide 15 Lime Kiln Heat Rate • Heat rate is a measure of energy efficiency – Units are MM Btu/ton CaO or GJ/tonne CaO – Often stated as MM Btu/ton "product" • Typical range – 5 to 9 MM Btu/ton CaO – 5.8 to 10.5 GJ/tonne CaO – Lower is better Slide 16 Lime Kiln Energy Balance Components • Drying • Calcining : CaCO3 + heat ÄCaO + CO2 • Losses – Heat loss through shell

Jul 09, 2009· 1. total heat balance. 2. total air balance. 3. fuel balance. 4. raw material balance. 5. loss due to 'CO' formation & other radiation loss. 6. kiln, pre heater and cooler condition ( Air, thermal, material ) 7. kiln, pre heater and cooler air flow. 8. combustion air distribution. 9. thermal efficiency of cooler. 10. Burner pipe condition

Apr 26, 2013· Incomplete combustion• The kiln exit gases might contain some un burnt gases (CO,H2, CH4)• The combustion heat from those fuels must be included as aout streamQic = mCO ×LHVCO + mH2 × LHVH2 + mCH4 ×LHVCH4The heat loss through the gas can be calculated to:h = m• (CO%•12640+H2%•10800+ CH4% • 35 840)m = specific gas quantity (Nm3/kg clk) 31.

Abdul Manan 13103046 Mass Balance Analysis Global Mass Balance kiln system Grate Cooler Mass Balance Balance Energy of Grate Cooler Eficiency Thermal Suspension Preheater Kiln Feed 273 ton/h Coal 8124.3 kg/h Primary Air coal 28 m 3 /min Natural Gas 3630.75 kg/h Rice Husk (RH) 11.8 ton/h Primary Air RH 68 m 3 /min Grate Cooler Measurement ...

Analysis of energy balance was used to determine the sources of heat loss from kiln system. The major heat loss is Heat losses by the kiln exhaust gas (19.15%) Hot air from cooler stack (5.61% ...

i) Surface temperatures of the kiln. j) Quality of manufactured brick etc. IV. Heat Balance. According to the result of measurement, we carried out the whole heat balance about the Tunnel Kiln and recorded the heat diagrams. Lastly we appointed the distribution of heat by its flow sheet and showed the efficiency of heat on the Tunnel Kiln.

Apr 15, 2016· In this paper, thermal energy analysis of three zones of a lime production process, which are preheater, rotary kiln and cooler, is performed. In order to perform a proper quantitative estimation, the system was modeled using energy balance equations including coupled heat transfer and chemical reaction mechanisms.

Figure 11: A part of moving fire kiln circuit showing fire travel Moving ware kilns: In a moving ware kiln, fire remains stationary, while the bricks and air move in counter-current paths. In tunnel kiln, which is a horizontal moving ware kiln, goods to be fired are passed on cars through a long horizontal tunnel (see Figure 12). The firing

Overall Kiln Heat Balance The kiln and grate cooler heat balance is based on the above input baseline parameters presented in table 5.1 and the overall heat input and output balance for the kiln are encapsulated in the tables 5.3 and 5.4The output heat balance presents the …

The power consumption is only about 0.5 to 1.0 kWh/ton of clinker, added to the kiln drive and exhaust fan, making it lowest for any kind of kiln. These coolers were popular in 1960 and 1970, when no. of cement plants came up with 4 stage pre-heaters. Shaft Coolers This type of cooler has fairly even size distribution. The upper part is used as ...

Products/Services for Clinker Cooler Heat Balances Scales and Balances - (931 companies) Scales and balances are instruments which reflect an object's mass — it's matter independent of gravity, often represented by grams, kilograms, or pounds (mass); or its weight — the object's mass multiplied by gravitational acceleration...

Temperature_measurement_on_rotary_kilns_and_clinker_coolers_for_.pdf is hosted at since 2000, the book Temperature measurement on rotary kilns and clinker coolers for contains 3 pages, you can download it for free by clicking in "Download" button below, you can also preview it before download.. Refractory Linings For Rotary Cement Kilns And Lime Kilns Rotary Kilns

May 01, 2016· The energy balance of a rotary kiln used for calcination of dolomite in a magnesium production company identified the kiln shell (26.35% of the input energy) and exhaust gases (18.95%) as …

Cement production has been one of the most energy intensive industries in the world. In order to produce clinker, rotary kilns are widely used in cement plants. This paper deals with the energy audit analysis of a dry type rotary kiln system working

Sep 01, 2016· Fig. 4, Fig. 5 show the heat versus temperature of the preheater bypass gases and the bypass dust, respectively. Fig. 5 shows incremental increases in gas heat of approximately 1%for every 5 K temperature increase through the series of cyclones. Fig. 6 shows that the dust heat content increases by 0.9% for every 5 K increase in temperature.. Download : Download high-res image (198KB)

ROTARY KILN PRODUCT COOLERS Slide 12 shows a schematic of satellite product coolers. All modern kilns are being offered with product coolers. Satellite coolers are tubes attached to the kiln shell and rotating with the kiln. The hot reburned lime product drops through holes in the shell just uphill from the lip of the kiln into the tube coolers.

Kiln Cooler Heat Mass Balance - Free download as Excel Spreadsheet (.xls), PDF File (.pdf), Text File (.txt) or view presentation slides online. n

unit after heat exchange with raw materials in the Preheating unit. 3. E ective Heat and Thermal E ciency 3.1. Definition of E ective Heat and Thermal E ciency Heat balance analysis was introduced to address both the input and output heats of the whole system and its subunits, and the output heat was further divided into three categories ...

Analysis of energy balance was used to determine the sources of heat loss from kiln system. The major heat loss is Heat losses by the kiln exhaust gas (19.15%) Hot air from cooler stack (5.61% ...

1 Heat from the combustion of coal Q = Mc*Hc Mc = 0.11 Kg/Kg klinker Hc = 7533 Kcal /kg coal 2 Sensible Heat from the coal Q = Mc*Cc* Tc Cp = 0.285 Kcal/kg-K

Hot gas from the kiln and, often, hot air from the clinker cooler are blown through the cyclones. Heat is transferred efficiently from the hot gases to the raw meal. The heating process is efficient because the meal particles have a very high surface area in relation to their size and because of the large difference in temperature between the ...

Moreover, A. Sagastume Gutiérrez et al. / Applied Thermal Engineering 51 (2013) 273e280 277 Table 2 Energy balance. Input flows Kiln No. 1 Kiln No. 2 Output flows Kiln No. 1 Kiln No. 2 T (K) En (kW) T (K) En (kW) T (K) En (kW) T (K) En (kW) Limestone 298 21 288 56 Quicklime 550 124 308 66 Air 298 27 294 110 Gases 728 763 588 2383 Fuel 298 ...

Radiation heat loss (preheater, kiln, cooler) 76 9.6 71 9.2 Heat in discharged clinker 21 2.6 21 2.7 TOTAL 786 100 766 100 Heat input from fuel fired, viz coal 734 - 714 - Table - 1 : Heat Balance for a Typical Cement Plant 02 The waste heat potential derived from heat balance of a typical 6000 tpd

Whether you are using a rotary dryer, rotary kiln, or rotary cooler, there is one thing that all these instruments have in common: they all use methods of heat transfer to carry out their jobs.Heat transfer is how heat moves from one source to another. Understanding the types of heat transfer, and how they differ, is an important part in understanding how a rotary dryer, cooler, or kiln works.

The experimental kiln measurements and thermodynamic calculations confirmed the kiln's low energy performance ... the fired tile cooling process, and heat transfer through the kiln surfaces, were identified and ... Finally, further measures are proposed for 25 optimising kiln energy efficiency. Keywords: energy balance, exergy analysis ...

Heat balance calculation of a cement kiln solution for may 13 2013 mass and heat balance in rotary kiln calculation solution for thermal energy management of cement rotary kiln to make the cumbersome and complicated heat balance of a rotary cement kiln process or calculations can carry heat balance excel sheet detailed.