Modeling of Installations with a Rotary Kiln for Thermal Decontamination of Wastes
The object of the study is a plant for incineration of solid wastes in a rotary kiln with an afterburning chamber and thermal catalytic emission purification. The aim of the study was to determine the rational layout of the solid wastes loading system and the location of the burner during combustion...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of Moldova
2018-04-01
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| Series: | Problems of the Regional Energetics |
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| Online Access: | http://journal.ie.asm.md/assets/files/05_01_36_2018.pdf |
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| author | Krot O.P. Rovenskyi O.I. |
| author_facet | Krot O.P. Rovenskyi O.I. |
| author_sort | Krot O.P. |
| collection | DOAJ |
| description | The object of the study is a plant for incineration of solid wastes in a rotary kiln with an afterburning chamber and thermal catalytic emission purification. The aim of the study was to determine the rational layout of the solid wastes loading system and the location of the burner during combustion in the system - a rotary kiln and an afterburning chamber. The results of simulation countercurrent and concurrent gas flow and wastes in the form of temperature gradients in the rotary kiln and afterburner chamber are presented. It is found that in the initial part of the rotary kiln, a temperature of more than 1000 °C is created on its lower surface, almost one-third of the length of the furnace (2.5-3 times more than in the concurrent mode). In a zone close to unloading, the temperature is minimal (less than 100 °C), therefore, the slag does not tolerate heat from the furnace, it has time to cool down. Criteria for the efficiency of the rotary kiln have been proposed: the length of the section where the maximum combustion temperature is reached, the length of the section before discharge of the slag, the temperature of the slag. A more efficient configuration for all the criteria is one that ensures the counter movement of debris and gas. To effectively use the volume of the afterburner chamber, the burners must be located at the maximum distance from each other. The outlet flue must also be as far from the burners as possible. |
| format | Article |
| id | doaj-art-ddf43e4b0f4040edae07a60ea823a9b3 |
| institution | Kabale University |
| issn | 1857-0070 |
| language | English |
| publishDate | 2018-04-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj-art-ddf43e4b0f4040edae07a60ea823a9b32025-08-20T03:39:26ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702018-04-01361445710.5281/zenodo.1217255Modeling of Installations with a Rotary Kiln for Thermal Decontamination of WastesKrot O.P.0Rovenskyi O.I.11Kharkov National University of Civil Engineering and Architecture, Kharkov, Ukraine 2North–East Scientific Center of the National Academy of Sciences of Ukraine Kharkov, UkraineThe object of the study is a plant for incineration of solid wastes in a rotary kiln with an afterburning chamber and thermal catalytic emission purification. The aim of the study was to determine the rational layout of the solid wastes loading system and the location of the burner during combustion in the system - a rotary kiln and an afterburning chamber. The results of simulation countercurrent and concurrent gas flow and wastes in the form of temperature gradients in the rotary kiln and afterburner chamber are presented. It is found that in the initial part of the rotary kiln, a temperature of more than 1000 °C is created on its lower surface, almost one-third of the length of the furnace (2.5-3 times more than in the concurrent mode). In a zone close to unloading, the temperature is minimal (less than 100 °C), therefore, the slag does not tolerate heat from the furnace, it has time to cool down. Criteria for the efficiency of the rotary kiln have been proposed: the length of the section where the maximum combustion temperature is reached, the length of the section before discharge of the slag, the temperature of the slag. A more efficient configuration for all the criteria is one that ensures the counter movement of debris and gas. To effectively use the volume of the afterburner chamber, the burners must be located at the maximum distance from each other. The outlet flue must also be as far from the burners as possible.http://journal.ie.asm.md/assets/files/05_01_36_2018.pdfwastes incinerationarotary kiln |
| spellingShingle | Krot O.P. Rovenskyi O.I. Modeling of Installations with a Rotary Kiln for Thermal Decontamination of Wastes Problems of the Regional Energetics wastes incineration a rotary kiln |
| title | Modeling of Installations with a Rotary Kiln for Thermal Decontamination of Wastes |
| title_full | Modeling of Installations with a Rotary Kiln for Thermal Decontamination of Wastes |
| title_fullStr | Modeling of Installations with a Rotary Kiln for Thermal Decontamination of Wastes |
| title_full_unstemmed | Modeling of Installations with a Rotary Kiln for Thermal Decontamination of Wastes |
| title_short | Modeling of Installations with a Rotary Kiln for Thermal Decontamination of Wastes |
| title_sort | modeling of installations with a rotary kiln for thermal decontamination of wastes |
| topic | wastes incineration a rotary kiln |
| url | http://journal.ie.asm.md/assets/files/05_01_36_2018.pdf |
| work_keys_str_mv | AT krotop modelingofinstallationswitharotarykilnforthermaldecontaminationofwastes AT rovenskyioi modelingofinstallationswitharotarykilnforthermaldecontaminationofwastes |