01-20
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01-11
ÌÕ´ÉÐîÈÈÌå - ÐîÈÈÐÔÄÜϽµµÄÔµÓÉ
ÐîÈÈÌåÊÇÒ»¸öÒªº¦²¿¼þ¡£µ«´ÓÏÖʵӦÓÃÀ´¿´£¬ÌÕ´ÉÐîÈÈÌåÊÙÃüÍùÍù²»¾¡ÈËÒ⣬Ե¹ÊÔÓÉÊǶ෽ÃæµÄ¡£ÌÕ´ÉÐîÈÈÌåÐîÈÈÐÔÄÜϽµÌåÏÖÔÚÒÔÏ·½Ã棺?1.ÆÆËð¡£ÑÌÆøÓë¿ÕÆø¶ÔÐîÈÈÌåÖظ´³åÏ´£¬µ¼Ö¸£½¨ÌÕ´ÉÐîÈÈÌåµÄζȷºÆðƵÈÔת±ä£¬¹ØÓÚÐîÈÈÏäÖÐijһµãÀ´½²£¬ÆäζÈÒªÖÜÆÚÐԵؿìËÙÉý¸ßºÍ½µµÍ100¡ª200¡æ£¬ÕâÖÖÈȹ¥»÷¶ÔÐîÈÈÌåÖÊÁÏÓÐÒ»¶¨µÄÆÆËð×÷Óá£ÆäÄͼ±Àä¼±ÈÈÐÔÄÜÍùÍùÇ·ºÃ£¬ÈÝÒ×·ºÆðÆÆËðÕ÷Ïó¡£?2.ÉÕË𡣶àÊÒ£¨Á½ÊÒ£©ÐîÈÈʽ¼ÓÈȯÖУ¬ÓÉÓÚ¿ÕÆøºÍÌìȼÆøµÄÅç×ìºÜ´ó£¬¿ÕÆø¡¢ÌìȼÆøÆøÁ÷»ìÏýЧ¹û²»²ÇÏ룬»áµ¼Ö²»ÍêȫȼÉÕ¡£µ±Ê£ÓàµÄ¿ÕÆøºÍÌìȼÆø½øÈëÐîÈÈÌåÏÁյĿռäÄÚ»ìÏý£¬µ¼Ö¶þ´ÎȼÉÕ´Ó¶øËð»µÐîÈÈÌå¡£?3.ÈÛ»¯Èí»¯¡£ÒòÑÌÆøÖк¬ÓÐÑõ»¯ÌúµÈÔÓÖÊ£¬Ò»Ö±ÓëÐîÈÈÌå½Ó´¥£¬ÔÚȼÉÕÊÒ¸ßÎÂÌõ¼þÏ£¬ÐγɵÍÈÈÈÛÎ½µµÍÖÊÁϵÄÈíÈÛζȡ£ºóÃæÔì³ÉÈíÈÛÖÊÁϹ£ÈûÆøÁ÷ͨµÀ£¬Ôì³ÉÆøÁ÷Ç·ºà¡£ ÐîÈÈÌåÊÇÒ»¸öÒªº¦²¿¼þ¡£µ«´ÓÏÖʵӦÓÃÀ´¿´£¬ÌÕ´ÉÐîÈÈÌåÊÙÃüÍùÍù²»¾¡ÈËÒ⣬Ե¹ÊÔÓÉÊǶ෽ÃæµÄ¡£ ÌÕ´ÉÐîÈÈÌåÐîÈÈÐÔÄÜϽµÌåÏÖÔÚÒÔÏ·½Ã棺 ? 1.ÆÆËð¡£ÑÌÆøÓë¿ÕÆø¶ÔÐîÈÈÌåÖظ´³åÏ´£¬µ¼Ö¸£½¨ÌÕ´ÉÐîÈÈÌåµÄζȷºÆðƵÈÔת±ä£¬¹ØÓÚÐîÈÈÏäÖÐijһµãÀ´½²£¬ÆäζÈÒªÖÜÆÚÐԵؿìËÙÉý¸ßºÍ½µµÍ100¡ª200¡æ£¬ÕâÖÖÈȹ¥»÷¶ÔÐîÈÈÌåÖÊÁÏÓÐÒ»¶¨µÄÆÆËð×÷Óá£ÆäÄͼ±Àä¼±ÈÈÐÔÄÜÍùÍùÇ·ºÃ£¬ÈÝÒ×·ºÆðÆÆËðÕ÷Ïó¡£ ? 2.ÉÕË𡣶àÊÒ£¨Á½ÊÒ£©ÐîÈÈʽ¼ÓÈȯÖУ¬ÓÉÓÚ¿ÕÆøºÍÌìȼÆøµÄÅç×ìºÜ´ó£¬¿ÕÆø¡¢ÌìȼÆøÆøÁ÷»ìÏýЧ¹û²»²ÇÏ룬»áµ¼Ö²»ÍêȫȼÉÕ¡£µ±Ê£ÓàµÄ¿ÕÆøºÍÌìȼÆø½øÈëÐîÈÈÌåÏÁյĿռäÄÚ»ìÏý£¬µ¼Ö¶þ´ÎȼÉÕ´Ó¶øËð»µÐîÈÈÌå¡£ ? 3.ÈÛ»¯Èí»¯¡£ÒòÑÌÆøÖк¬ÓÐÑõ»¯ÌúµÈÔÓÖÊ£¬Ò»Ö±ÓëÐîÈÈÌå½Ó´¥£¬ÔÚȼÉÕÊÒ¸ßÎÂÌõ¼þÏ£¬ÐγɵÍÈÈÈÛÎ½µµÍÖÊÁϵÄÈíÈÛζȡ£ºóÃæÔì³ÉÈíÈÛÖÊÁϹ£ÈûÆøÁ÷ͨµÀ£¬Ôì³ÉÆøÁ÷Ç·ºà¡£ ? The regenerator is a key component. However, from the practical point of view, the life of ceramic regenerators is often unsatisfactory, for a variety of reasons. The thermal storage performance of ceramic regenerators is reduced in the following aspects: ? 1. Damaged. Flue gas and air repeatedly wash the regenerator, causing frequent changes in the temperature of the Fujian ceramic regenerator. For a certain point in the regenerator, the temperature should be periodically increased and lowered 100-200 ¡ãC periodically. The thermal shock has a certain destructive effect on the heat storage material. Its resistance to quenching and rapid heat is often poor, and it is prone to breakage. ? 2. Burning. In a multi-chamber (two-chamber) regenerative heating furnace, due to the large nozzles of air and natural gas, the mixing effect of air and natural gas airflow is not ideal, resulting in incomplete combustion. When the remaining air and natural gas enter the space where the regenerator is narrow, the secondary combustion causes secondary combustion to damage the regenerator. ? 3. Melt and soften. Because the flue gas contains impurities such as iron oxide, it continuously contacts the regenerator, and under the high temperature condition of the combustion chamber, a low hot melt is formed to lower the reflow temperature of the material. The back causes the reflow material to block the airflow path, causing the airflow to fail.
02-25
RTOÌÕ´ÉÐîÈÈÌåÔÚȼÉÕ¯Öлᱬ·¢Ê²Ã´×÷ÓÃ
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ÏÖ´úÌմɾذ°»·ÔÚÆô³ÝÃæ»ýºÍÆøÁ÷ͨµÀÉè¼ÆÉÏÓкܴóˢУ¬´Ó¶ø½øÒ»²½±ÜÃâÁËÌîÁϵÄÏàµþºÍ½µµÍÆøÁ÷ͨ¹ýÌîÁÏ´²²ãʱµÄѹÁ¦Ëðʧ¡£ ? ´ÓÏÖÔÚRTO×°±¸ÊÖÒյĽøÒ»²½Éú³¤À´¿´£¬Ê×ÏÈÊÇïÔÌÅÅ·Å£¬¾ÍÒªÇó¸ÄÉÆȼÉÕÆ÷µÄÉè¼ÆºÍȼÉÕÀú³Ì£¬ÌØÊâÊǶÔȼÉÕζȵĿØÖÆ£¬ÒÔ¼°½ÓÄɵç¼ÓÈÈÀ´Ìæ»»ÓÍ/ÆøȼÁÏ£¬½èÒÔ×èÖ¹Ìí¼Ó¸¨ÖúȼÁÏȼÉպ͸ßοÉÄÜÒýÆðµÄ¶þ´ÎÎÛȾ;Æä´ÎÊÇÑо¿ÔõÑùÌá¸ßÆøËÙ¡£¿ª·¢Ð§ÂʸߵÄÐîÈÈÌåÀ´ËõСװÖõÄÈÝ»ý£¬½èÒÔ½µµÍͶ×ÊÓöÈ;Ë¢ÐÂÆøÌåµÄ³õʼÂþÑÜÀ´Ìá¸ßÐîÈÈÌåµÄÓÐÓÃʹÓÃÂʺʹ«ÈÈЧ¹û;Ë¢ÐÂÇл»·§À´ÑÓÉìÆäʹÓÃÊÙÃü¡£½øÒ»²½¿ª·¢×°ÖÃÖÐÖî²ÎÊýµÄ×Ô¶¯¼ì²â¿ØÖÆ£¬ÎªÁËÌá¸ß²Ù×÷µÄÇå¾²ÐԺͿɿ¿ÐÔ£¬ÉÐÓÐÐí¶àÖµµÃÑо¿µÄÎÊÌâ¡£±ðµÄ£¬RTO×°±¸µÄÊýÖµÅÌËãºÍÅÌËã»úÄ£Äâ¿ÉÓÃÓÚÃ÷È·Àú³ÌµÄ²Ù×÷ÐÐΪºÍÓÅ»¯×°±¸µÄÉè¼Æ£¬²¢ÔÚijЩ·½Ãæ¿ÉÌæ»»RTOµÄÖÐÐÄÊÔÑéÀ´½ÚÔ¼Óöȡ£ ¡¡¡¡ RTO´¦ÀíÊÖÒÕÊÊÓÃÓÚ¸ßŨ¶ÈÓлú·ÏÆø¡¢Í¿×°·ÏÆø¡¢¶ñ³ô·ÏÆø(·ÏÆøŨ¶ÈÔÚ500mg/LÒÔÉÏ)µÈ·ÏÆø¾»»¯´¦Àí;ÊÊÓÃÓÚ·ÏÆøÒòËؾ³£±¬·¢×ª±ä»ò·ÏÆøÖк¬ÓÐʹ´ß»¯¼ÁÖж¾»ò»îÐÔË¥Í˵ÄÒòËØ(ÈçË®Òø£¬Îý£¬Ð¿µÈµÄ½ðÊôÕôÆûºÍÁס¢Á×»¯ÎÉéµÈ£¬ÈÝÒ×ʹ´ß»¯¼Áʧȥ»îÐÔ£»º¬Â±Ëغʹó×ÚµÄË®ÕôÆøµÄÇéÐÎ)£¬º¬ÓбËØ̼Ç⻯ºÏÎï¼°ÆäËü¾ßÇÖÊ´ÐÔµÄÓлúÆøÌå¡£´ß»¯È¼ÉÕ(RCO)ËäÈ»Ïà±ÈÐîÈÈʽȼÉÕ(RTO)´¦ÀíÊÖÒÕ¾ßÓÐÒ»¶¨ÊÖÒÕÓÅÊÆ£¬¿ÉÊÇRCO²»ÊÊÓÃÓÚº¬½ðÊôÕôÆû¼°Â±ËصķÏÆø£¬ÓÉÓÚÈÝÒ×ÒýÆð´ß»¯¼ÁÖж¾¡£ ¡¡¡¡ ´ÓÏÖÔÚRTO×°ÖÃÊÖÒյĽøÒ»²½Éú³¤¿´£¬RTOÐîÈÈʽȼÉÕ¯ÊƱسÉΪһÖÖеÄÓлú·ÏÆø¡¢Í¿×°·ÏÆø¡¢¶ñ³ô·ÏÆøµÈ·ÏÆø¾»»¯´¦ÀíÐÐÒµµÄµÚ1Ñ¡Ôñ¡£ ? What role does RTO ceramic regenerator play in the furnace? ? The key to the heat exchange in the RTO device is the heat storage filler, also known as the heat storage body, which is usually made of ceramic material. ? In terms of ceramic regenerators, the two types currently used in RTO are basically ceramic bulk packing and ceramic structured packing. In the case of random packing: the porcelain ball and the ceramic saw saddle ring used in the chemical industry were originally used, and the ceramic saddle ring was used more. ? Modern ceramic saddle rings have been greatly improved in opening area and airflow passage design to further prevent stacking of the packing and reduce pressure loss as the gas flows through the packed bed. ? From the further development of RTO equipment technology, the first is to reduce emissions, and it is required to improve the design and combustion process of the burner, especially the control of combustion temperature, and the use of electric heating instead of oil/gas fuel to avoid adding auxiliary. Secondary pollution caused by fuel combustion and high temperature; secondly, how to increase gas velocity. Develop high-efficiency regenerators to reduce the volume of the device, thereby reducing investment costs; improving the initial distribution of gas to improve the effective utilization and heat transfer of the regenerator; and improving the switching valve to extend its service life. Further development of automatic detection and control of parameters in the device, in order to improve the safety and reliability of the operation, there are still many problems worth studying. In addition, numerical calculations and computer simulations of RTO equipment can be used to understand the operational behavior of the process and to optimize the design of the equipment, and in some respects can replace RTO intermediate tests to save money. ? The RTO treatment technology is suitable for the purification of exhaust gases such as high-concentration organic waste gas, painted exhaust gas, and odorous exhaust gas (exhaust gas concentration above 500mg/L); it is suitable for the frequent changes of exhaust gas components or the components in the exhaust gas that cause catalyst poisoning or activity degradation ( Metal vapors such as mercury, tin, zinc, etc., and phosphorus, phosphide, arsenic, etc., tend to deactivate the catalyst; in the case of halogens and large amounts of water vapor, contain halogen hydrocarbons and other corrosive organic gases. Although catalytic combustion (RCO) has certain technical advantages over regenerative combustion (RTO) treatment technology, RCO is not suitable for exhaust gas containing metal vapor and halogen because it is easy to cause catalyst poisoning. ? From the further development of the current RTO device technology, the RTO regenerative incinerator is bound to become the first choice for a new exhaust gas purification treatment industry such as organic waste gas, painted exhaust gas and odorous exhaust gas.
03-24
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03-09
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ÔÚÐýתRTOÖУ¬Ë¢ÐµĽ¹µã²¿Î»ÈÔÈ»ÊÇÐîÈÈÌå¡£ÐýתʽRTOÖ÷ÒªÓÉȼÉÕÊÒ¡¢ÌÕ´ÉÌî³ä´²ºÍÐýת·§µÈ×é³É¡£ÐýתRTOµÄÐîÈÈÌåÖÐÉèÖ÷ָñ°å£¬½«ÐîÈÈÌå´²²ã·ÖΪ¼¸¸ö×ÔÁ¦µÄÉÈÐÎÇø¡£·ÏÆø´Óµ×²¿¾½øÆø·ÖÅÉÆ÷½øÈëÔ¤ÈÈÇø£¬Ê¹ÆøÌåζÈÔ¤Èȵ½Ò»¶¨Î¶Ⱥó½øÈ붥²¿µÄȼÉÕÊÒ£¬²¢ÍêÈ«Ñõ»¯¡£ ¾»»¯ºóµÄ¸ßÎÂÆøÌåÍÑÀëÑõ»¯ÊÒ£¬½øÈëÀäÈ´Çø£¬½«ÈÈÁ¿´«¸øÐîÈÈÌå¶øÆøÌå±»ÀäÈ´£¬²¢Í¨¹ýÆøÌå·ÖÅÉÆ÷ÇãÔþ¡£¶øÀäÈ´ÇøµÄÌÕ´ÉÐîÈÈÌåÎüÈÈ£¬Öü´æ´ó×ÚµÄÈÈÁ¿£¨ÓÃÓÚϸöÑ»·¼ÓÈÈ·ÏÆø£©¡£ Ϊ±ÜÃâδ·´Ó¦µÄ·ÏÆøËæÐîÈÈÌåµÄÐýת½øÈë¾»»¯Æø³ö¿ÚÈ¥£¬µ±ÐîÈÈÌåÐýתµ½¾»»¯Æ÷³ö¿ÚÇø֮ǰ£¬ÉèÓÐÒ»ÉÈÐÎÇø×÷Ϊ³åÏ´Çø¡£ ͨ¹ýÐîÈÈÌåµÄÐýת£¬ÐîÈÈÌå±»ÖÜÆÚÐÔµÄÀäÈ´ºÍ¼ÓÈÈ£¬Í¬Ê±·ÏÆø±»Ô¤ÈȺ;»»¯Æ÷ÀäÈ´¡£ÔÆÔÆÒ»Ö±µØ½»Ìæ¾ÙÐС£ ? At present, there are still many difficulties in VOCs governance. For example, the emission sources are small and scattered, involving many industries. The VOCs emitted by various industries are various in variety and complex. Even in the same industry, if the raw material composition and production process are different, the types and properties of VOCs emitted are different. And the concentration is not the same. Therefore, the required technical route is different. ? China's treatment of volatile organic waste gas is mainly divided into four stages: The first stage, 2000 years ago, the treatment of local irritating or recycled value of exhaust gas, only the irritating exhaust gas through the water spray absorption treatment; In the second stage, from 2001 to 2005, the exhaust gas was collected and treated in an organized manner, and the main treatment method of the exhaust gas was water and alkali spray two-stage absorption treatment; The third stage, after 2005, strengthen the source control, improve the centralized collection of exhaust gas, and then strengthen the treatment by activated carbon adsorption on the basis of the second stage; In the fourth stage, after 2007, the whole process of volatile organic waste gas is gradually processed. At this stage, China's oxidation control technology for industrial volatile organic waste gases mainly includes: photocatalytic oxidation, direct combustion, catalytic combustion technology and RTO. Among them, the RTO technology developed on the basis of the combustion method, because of simple operation, less operation and maintenance, high removal efficiency of volatile organic compounds, generally more than 95%, has become one of the main technologies of organic waste gas treatment in China. . ? RTO, the full name RegenerativeThermal Oxidizer, Chinese translation "regenerative thermal oxidation combustion", listening is very complicated, isn't it? Don't worry, and listen to Xiaobai slowly. First of all, we can extract three core information from the name - heat storage, thermal oxidation, and combustion. It can be said that this is the purification and concentration of RTO working principle. Thermal oxidation and combustion are well understood. Organic compounds (VOCs) react with oxygen at a certain temperature to form CO2 and H2O, and emit a certain amount of heat in the oxidation reaction process. Students who have studied chemistry can see this in seconds. What is the key to "heat storage"? How to store heat? This mysterious heat storage source benefits from the regenerator in the RTO. If the heat recovery rate of the regenerator is higher, indicating that the higher the heat accumulated, the heat required to oxidize the exhaust gas is correspondingly lower,
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