Relevant bibliographies by topics / Rotary Drum Drying

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Rotary Drum Drying'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Rotary Drum Drying"

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Sonsiri, Anuwit, and Thana Radpukdee. "Effect of Biogas Volume Flow Rate and Burner Temperature on Moisture Content of Organic Fertilizer in a Rotary Drying Process." Advanced Materials Research 1105 (May 2015): 305–10. http://dx.doi.org/10.4028/www.scientific.net/amr.1105.305.

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Different factors can influence the moisture content of product in an organic fertilizer drying process. In this study, biogas volume flow rate and burner temperature were systematically studied in an effort to ascertain their effect on the moisture content of organic fertilizer grain that had been subjected to rotary drum indirect heating procedures. It was found that these two factors did major effect on the moisture content of organic fertilizer in a rotary drum drying process. Additionally, it was also discovered that acceptable organic fertilizer moisture content occurred when the rotary drum drier utilized both the biogas volume flow rate of 0.058 m3/min. in combination with the drying temperature of 500°C while the percentage of biogas blower and burner operation were reduced by 22.67 % and 9.1%, respectively.
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Xiao, Yongli, Hualin Wang, Shengan Deng, Fuyong Su, and Zhi Wen. "Drying characteristics of sludge in a rotary drum for fast-drying application." Thermal Science, no. 00 (2020): 303. http://dx.doi.org/10.2298/tsci200720303x.

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High-temperature metallurgical slag (temperature, > 1450 ?C) and high-moisture sludge (moisture content, > 80 wt%) are common wastes with huge outputs. Many problems, such as high cost, low level of harmlessness, and low efficiency, are encountered in current treatment methods. If these wastes can be recycled, they can be valuable secondary resources. Therefore, using the drum apparatuses to treat these two kinds of wastes is proposed. The process uses waste heat of slag to dry sludge with high moisture content and is a kind of alternative circulation treatment technology in which steel balls are used as ball milling media and intermediate heat carriers. Besides, this technology can break up slag or sludge in real time, thereby ensuring high heat or mass transfer rate. This study presents an experimental investigation of the dynamic drying process of wet sludge mixed with hot steel balls in a rotary drum. The relationship of operation parameters (including sludge moisture content, sludge treatment mass, steel ball diameter, and rotary speed of drum) and drying effect is obtained. There are three kinds of final drying results: completely dried to powder, few sludge agglomerations, and sludge-to-wall adhesion. If the operating parameters are set well, the sludge could be efficiently and completely dried and eventually in powder form.
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Naswir, Naswir, Elvin Hasman, and A. Irwan. "Rotary Electrical Controlled Drum Dryer for Organic Fertilizer Production." Journal of Applied Agricultural Science and Technology 3, no. 2 (August 31, 2019): 320–27. http://dx.doi.org/10.32530/jaast.v3i2.104.

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this research is aim to provide design and prototype of rotary electrical controled drumdrier machine for drying organic fertilizer to increased production capacity and quality by using a source of heat energy from electricity. This machine consists of five main components i.e. drying cylinder, heating unit, support frame, engine and transmission system. Engine specifications are high 130 cm, 720 cm long, and 120 cm wide, cylinder diameter 60 cm, power engine 14 hp, and heating temperature 142 oC. engine performance test are: capasity 805,03 kg/hours, drying rate 27,40 %/hours, noise level 81,54 db. cost analysis result are operational cost 155,06 Rp/kg and Break Event Point 159.219,73 kg/years
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Havlík, Jan, Tomáš Dlouhý, and Michel Sabatini. "THE EFFECT OF THE FILLING RATIO ON THE OPERATING CHARACTERISTICS OF AN INDIRECT DRUM DRYER." Acta Polytechnica 60, no. 1 (March 2, 2020): 49–55. http://dx.doi.org/10.14311/ap.2020.60.0049.

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This article investigates the effect of the filling ratio of the indirect rotary dryers on their operating characteristics. For moist biomass drying before combustion, the use of indirect drum dryers heated by a low pressure steam has proven to be highly suitable. Regarding the design of new dryers, it is necessary to experimentally verify the operating characteristics for specific materials and drying conditions. For this purpose, a set of experiments on a steam heated rotary drum dryer were carried out with green wood chips containing 60 to 66 wt% of moisture. The following operational characteristics of the dryer were experimentally determined: drying curves describing the process, square and volumetric evaporation capacities and drying heat consumptions. Based on the experimental results, the effect of various drum filling by dried material on the mentioned operating characteristics was analysed. On the one hand, higher drum filling ratio increases the drying time, on the other hand, the evaporation capacity also increases, while the specific energy consumption does not significantly alter. The maximum value of the evaporation capacity was reached when the drum was filled to 20 wt%. When the filling ratio was increased to 25 wt%, the evaporation capacity experienced almost no change.
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Havlík, Jan, and Tomáš Dlouhý. "Indirect Dryers for Biomass Drying—Comparison of Experimental Characteristics for Drum and Rotary Configurations." ChemEngineering 4, no. 1 (March 10, 2020): 18. http://dx.doi.org/10.3390/chemengineering4010018.

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This paper focuses on indirect biomass drying. It compares the operating characteristics of a laboratory-scale drum dryer and a pilot-scale rotary dryer. Before the design of an industrial dryer for a specific material, it is important to experimentally prove the process and to determine the drying characteristics of the material. To verify the portability of experimental results for indirect dryers, a drum dryer with indirect electric heating in a laboratory scale was designed and built to test and study the process of indirect drying. Based on the results obtained on a small-scale device, a prototype of a pilot steam-heated rotary dryer was designed and manufactured. A broad range of experiments with green wood chips and wet bark from open-air storage with moisture contents of 50 to 65 wt % were carried out on both dryers. The drying curves indicating the process, the square and volumetric evaporation capacities, and the drying energy consumption were obtained and compared, and the feasibility of indirect drying for these tested types of biomass was confirmed.
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Osorno, Fernando Lozano, and Oliver Hensel. "Drying Homogeneity of Grass Mixture Components in a Rotary Drum." Drying Technology 30, no. 16 (December 15, 2012): 1931–35. http://dx.doi.org/10.1080/07373937.2012.708889.

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Laohavanich, J., S. Yangyuen, and N. Thowjantuek. "An Investigation of Radiant Heat Distribution on Drying Area in the Chamber of Infrared Rotary Dryer." Advanced Materials Research 1044-1045 (October 2014): 232–35. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.232.

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An investigation of radiant heat distribution on drying area in the chamber of infrared-rotary dryer (IRD) was conducted by measuring the values of infrared radiation on drum surface of the dryer chamber and then showed in term of surface temperature (ST). A gas-fired infrared burner (GIB) was used as the heat source, radiated the electromagnetic wave in the length of near-infrared ray. The drum surface was set as an infrared radiant absorbing area, installed with type K thermocouples and set as grid. Different levels of drum diameters (D=700, 900 and 1100 mm.), infrared peak wavelengths (IRP=3.32, 2.97 and 2.70 micron), distances between GIB and drum surface (H=300, 400 and 500 mm.), grid positions on drum surface (longitudinal direction (L) and radial direction (W) = 900 x 900 mm2) were applied. Then, distribution of surface temperature values was analyzed, based on response surface methodology (RSM) obtained from a second order polynomial model. The results showed that IR and H were the main factors affecting the radiant heat distribution. Then, the surface plots of ST levels on the absorbing drum surfaces in the rotary drying chamber were constructed. The contour plot results were indicative of a use for the design and selection of an appropriate size of area for drying with uniform distribution of IR in accordance with user-defined parameters.
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Alikhan, Z., G. S. V. Raghavan, and A. S. Mujumdar. "ADSORPTION DRYING OF CORN IN ZEOLITE GRANULES USING A ROTARY DRUM." Drying Technology 10, no. 3 (June 1992): 783–97. http://dx.doi.org/10.1080/07373939208916475.

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Stroem, L. K., D. K. Desai, and A. F. A. Hoadley. "Superheated steam drying of Brewer’s spent grain in a rotary drum." Advanced Powder Technology 20, no. 3 (May 2009): 240–44. http://dx.doi.org/10.1016/j.apt.2009.03.009.

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Ademiluyi, F. T., and M. F. N. Abowei. "Theoretical Model for Predicting Moisture Ratio during Drying of Spherical Particles in a Rotary Dryer." Modelling and Simulation in Engineering 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/491843.

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A mathematical model was developed for predicting the drying kinetics of spherical particles in a rotary dryer. Drying experiments were carried out by drying fermented ground cassava particles in a bench scale rotary dryer at inlet air temperatures of 115–230°C, air velocities of 0.83 m/s–1.55 m/s, feed mass of 50–500 g, drum drive speed of 8 rpm, and feed drive speed of 100 rpm to validate the model. The data obtained from the experiments were used to calculate the experimental moisture ratio which compared well with the theoretical moisture ratio calculated from the newly developed Abowei-Ademiluyi model. The comparisons and correlations of the results indicate that validation and performance of the established model are rather reasonable.
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Dissertations / Theses on the topic "Rotary Drum Drying"

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Stine, Sarah G. "Enhancement of Municipal Wastewater Biosolids Drying through Interfacial Energy Modifying Amendments to Promote Uniform Agglomeration - Bench Scale Testing." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/1269.

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Biosolids Drying is the process of producing a fertilizer product for beneficial reuse from solids produced during municipal wastewater treatment. The drying of biosolids involves the evaporation of water to stabilize the material and produce a product for beneficial use. Thermal energy needs to be transferred to the biosolids to evaporate the water and heat the solids. Energy can be provided by combustion of fuels, re-use of waste heat or solar radiation (WEF, 2014). The most common technology for biosolids drying in the United States utilizes rotary drum dryers. In these systems, fines and crushed oversized pellets produced during the drying system are mixed with dewatered biosolids upstream of the dryer to create a 55% - 65% dry biosolid in the form of pellets. Reducing the percentage of fines generated during the drying process can potentially reduce the amount of energy required for drying. In earlier research completed by Zhang (2018) it was shown that energy modifying amendments, specifically cationic polyelectrolytes, can reduce the zeta potential of biosolids in solution and possibly promote aggregation of the fines. One of the tested amendments, polydiallyldimethylammonium chloride (PDADMAC), was also shown to increase the particle size of the biosolids in solution. In this work, a bench scale drying system was designed and developed to apply the polyelectrolyte amendments to biosolids during the mixing phase, and to gauge the impact on the pellet size distribution and the percentage of fines generated after drying. It was shown that PDADMAC, which is a high charge density cationic polyelectrolyte, had a measurable, though inconsistent, impact on pellet size when applied during the mixing phase. This work also highlights the varying characteristics of biosolids and the recycled biosolids produced during the drying process. Both PDADMAC, and polyallyamine, another cationic polyelectrolyte, when applied to biosolids during the mixing phase limited the increase in fines production as the mixing time was increased prior to drying.
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Gruber, Jan. "Sušení biomasy." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231660.

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This thesis deals with the drying of biomass, especially drying of small wood mass. The various drying methods, such as belt drying, fluidized bed drying and drum drying are compared including their advantages and disadvantages. It is suggested basic technological scheme of drying line. The last part of the thesis deals with a calculation of drum dryer of specified performance and economic balance is made.
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Book chapters on the topic "Rotary Drum Drying"

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Herce, Carlos, Antonia Gil, Miguel Gil, and Cristóbal Cortés. "A CAPE-Taguchi combined method to optimize a NPK fertilizer plant including population balance modeling of granulation-drying rotary drum reactor." In Computer Aided Chemical Engineering, 49–54. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-444-63965-3.50010-6.

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Conference papers on the topic "Rotary Drum Drying"

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Mesnier, Aline, Maroua Rouabah, C. Cogné, Roman Peczalski, Séverine Vessot-Crastes, Pascal Vacus, and Julien Andrieu. "Mechanical and thermal segregation of milli-beads during contact heating in a rotary drum. DEM modeling and simulation." In 21st International Drying Symposium. Valencia: Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/ids2018.2018.7423.

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The flow mechanics and heat transfer phenomena within a bed of milli-metric size spherical beads rotated and heated by contact in a horizontal drum were simulated by means of commercial discrete element software EDEM. Mono-dispersed and bi-dispersed beds (two particle sizes or two particle densities) were considered. The mechanical segregation index (standard deviation of local bed compositions) and the thermal segregation index (standard deviation of beads temperatures) were calculated for the different types of bed and same operating conditions. The thermal segregation was found to be enhanced by mechanical segregation and was much stronger for bi-dispersed beds than for monodispersed one. Keywords: rotating drum; particulate solid; segregation; contact heat transfer; DEM simulation.
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Sudhagar Mani, Shahab Sokhansanj, and Xiaotao Bi. "Modeling of Forage Drying in Single and Triple Pass Rotary Drum Dryers." In 2005 Tampa, FL July 17-20, 2005. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2005. http://dx.doi.org/10.13031/2013.19923.

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Kyle V Probst and Klein E Ileleji. "Pelletization by Agglomeration of Wet Distillers Grains during Rotary Drum Granulation and Drying." In 2009 Reno, Nevada, June 21 - June 24, 2009. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.28884.

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Yang Gao, Decheng Wang, Guanghui Wang, and Jie Yang. "Design and Computational Fluid Dynamics Simulation of Triple-pass Rotary Drum Dryer for Wood Sawdust Drying." In 2012 Dallas, Texas, July 29 - August 1, 2012. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2012. http://dx.doi.org/10.13031/2013.42130.

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Witwer, Keith. "Preliminary Demonstration of GeoMelt Treatment of Hanford’s K-Basin Sludge." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59004.

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The U.S. Department of Energy (DOE) and CH2M Hill Plateau Remediation Company (CHPRC) are seeking a waste treatment solution for sludge stored in the K-Basin spent fuel pond at the Hanford Nuclear Site, in Washington State, USA. This sludge is a Remote Handled Transuranic (RHTRU) waste destined for final disposal at the Waste Isolation Pilot Pant (WIPP) in New Mexico. Removal of the sludge from the K-Basin and transport for interim storage at the Hanford Site is referred to as Phase 1 in this process. Phase 2 is defined as the treatment and packaging of the sludge such that it can be transported and disposed at the WIPP. This paper discusses work in support of Phase 2. ISI’s GeoMelt ICV process is ideally suited to treating a heterogeneous sludge that is rich in uranium metal and which contains a mixture of other fuel derived products, earthen materials, and miscellaneous items (operational debris, resin, etc). GeoMelt can quickly and efficiently treat small drum load batches and will fully destroy organics, oxidize reactive metals, and permanently immobilize radioactive constituents within a high-integrity vitrified product that will meet or exceed all WIPP acceptance criteria. The GeoMelt Technology has an extensive experience base, having treated more waste by vitrification than any other company in the world (25,500 metric tons). The equipment tested for this Project phase constituted the front end, or Sludge Pretreatment and Transport steps, of the proposed GeoMelt process. These components first focused on an engineering scale (22-liter), followed by testing with a full-scale (130-liter), horizontal rotary plow dryer/mixer. The dryer removes water from the sludge, via external heating and under reduced pressure, and mixes it with glass forming minerals (GFM) prior to treatment in the GeoMelt ICV system. Testing was first performed in July and September 2010 using a 22-liter drying system, which demonstrated a baseline drying technique and allowed an assessment of the resulting physical properties before, during, and after drying/mixing. Full-scale testing using a 130-liter dryer and condensate system was then performed in October 2010. An Operational Acceptance Test (OAT) of the equipment, followed by four “Dryer Holdup” tests and three “GFM Cleanout” tests were performed. Each of the Project Test Objectives was successfully met. Both the 22-liter engineering-scale and the 130-liter full-scale steam jacketed, horizontal plow, dryer are shown to dry and mix 5-vol% solids K-Basin sludge and GFM without difficulty. These test results, combined with previous treatability testing in 2004 wherein successful GeoMelt vitrification of a K-Basin sludge simulant was demonstrated, confirm the efficacy of the overall treatment process towards providing an immediate solution to the final disposition of K Basin Sludge.
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