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1.
蓄热燃烧与陶瓷球蓄热式换热器   总被引:1,自引:0,他引:1  
沈君权  沈弘涛 《陶瓷》2001,(5):40-44
介绍了蓄热燃烧原理,并对蓄热燃烧用蓄热体的基本要求、陶瓷球蓄热体的材质、形状、大小等进行了较深入的研究分析;给出了陶瓷球蓄热式换热器的结构参数,换向控制和换向时间、低氧高温燃烧和低NOx排放等关键技术。面对当前工业窑炉的现状,提出实施蓄热燃烧技术可使工业窑炉的热效率提高到70%-80%,节省能耗54%,有效地减少了CO2和NOx的排放,降低了环境污染。  相似文献   

2.
对蓄热燃烧原理、高温低氧燃烧、低NOx排放,陶瓷蓄热体材质、开头大小以及蓄热式换热器结构、换向时间和换向阀等关键技术和相关问题进行了系统研究和分析,同时介绍陶瓷球蓄热式换热器在工业窑炉上的应用情况,结果表明,此项技术可从根本上提高工业窑炉的热效率,热效率可达70%~80%,节能可达54%,实现高效低耗,清洁环保的目的。  相似文献   

3.
刘小云 《陶瓷》2012,(9):9-11
对蓄热燃烧原理、高温低氧燃烧、低NOx排放,陶瓷蓄热体材质、形状、大小以及蓄热式换热器结构、换向时间和换向阀等关键技术和相关问题进行了系统研究和分析,同时介绍了陶瓷球蓄热式换热器在陶瓷窑炉上的应用情况。结果表明,此项技术可从根本上提高陶瓷窑炉的热效率,热效率可达70%~80%,节能可达54%,可实现高效率、低能耗、清洁环保的目的。  相似文献   

4.
刘小云 《陶瓷》2012,(17):9-11
对蓄热燃烧原理、高温低氧燃烧、低NOx排放,陶瓷蓄热体材质、形状、大小以及蓄热式换热器结构、换向时问和换向阀等关键技术和相关问题进行了系统研究和分析,同时介绍了陶瓷球蓄热式换热器在陶瓷窑炉上的应用情况。结果表明,此项技术可从根本上提高陶瓷窑炉的热效率,热效率可达70%-80%,节能可达54%,可实现高效率、低能耗、清洁环保的目的。  相似文献   

5.
潘弘  田华  王磊  孙钢 《玻璃》2022,49(2):48-52
蓄热室格子体是浮法窑炉重要的蓄热和排废设备,在窑炉全生命周期中,随着窑炉运行时间的延长,蓄热室格子孔会逐渐堵塞,堵塞严重时,影响助燃风的进入和烟气的排出,从而影响蓄热室的蓄热、排废、送风效果;影响火焰的燃烧和窑压的稳定,造成窑内热气流的负面变化,导致燃烧不完全、燃料的严重浪费,进而造成玻璃质量严重降低;因此,从新线投产就要做好蓄热室格子体全生命周期管理,重视蓄热室格子体的堵塞状态,及时疏通,维持蓄热室良好的畅通状态。建议从投产开始做好蓄热室全生命周期的管理。  相似文献   

6.
介绍了采用蓄热式燃烧技术对24t熔铝炉燃烧系统进行改造的技术特点,阐述了蓄热式燃烧技术在熔铝炉领域上有着广泛的应用和推广价值。  相似文献   

7.
介绍了白蓄热高温空气燃烧技术的原理与优点,提出一种能实现连续稳定燃烧的自蓄热式高温空气燃烧器制作方案。探讨了连续式自蓄热燃烧技术在玻璃行业应用的可能性。  相似文献   

8.
蓄热式燃烧技术的工业应用   总被引:4,自引:0,他引:4  
介绍了蓄热式加热炉燃烧技术工作原理,并对主要加热设备蓄热体、换向装置、蓄热式烧嘴进行了分析。蓄热式技术能够最大限度回收烟气中的热量,大幅度节约燃料,降低成本,还可以减少CO2和NOx的排放量,这项技术在国际上被称为二十一世纪的关键技术之一。  相似文献   

9.
刘慧  李亚冰  陈文仲 《耐火材料》2012,46(4):267-269,274
采用蓄热式高温空气燃烧技术代替传统塔式锌精馏炉方孔式陶土换热器技术,并对蓄热室的部分材料进行改进。用热导率较高的耐热钢小球代替部分蓄热体,并采用数值模拟对改进后的蓄热室温度分布及功率的变化进行考查。结果表明,蓄热室内温度分布的均匀性明显提高,尾部蓄热室传热效果增强。高温段向尾部偏移,有效利用了蓄热室的尾部区域,且预热空气温度得到显著提高。  相似文献   

10.
童树庭  史以平 《玻璃》1992,(3):7-12,22
燃煤气玻璃熔窑的空气蓄热室,从传统的带上升道蓄热室改为新式箱型蓄热室,既可以提高空气预燃温度又可以降低格子体的热负荷并延长窑龄.借助于窑体物理模拟方法,对气流在蓄热室、小炉和火焰空间内的流动及混合进行了新、老蓄热室结构的对比试验,认识到空气预热温度的高低是箱式蓄热室小炉进行成功燃烧的关键.  相似文献   

11.
Temporomandibular joint osteoarthritis (TMJ-OA) is a chronic degenerative disease that is often characterized by progressive impairment of the temporomandibular functional unit. The aim of this randomized controlled animal trial was a comparative analysis regarding the chondroregenerative potency of intra-articular stem/stromal cell therapy. Four weeks after combined mechanical and biochemical osteoarthritis induction in 28 rabbits, therapy was initiated by a single intra-articular injection, randomized into the following groups: Group 1: AB Serum (ABS); Group 2: Hyaluronic acid (HA); Group 3: Mesenchymal stromal cells (STx.); Group 4: Mesenchymal stromal cells in hyaluronic acid (HA + STx.). After another 4 weeks, the animals were euthanized, followed by histological examination of the removed joints. The histological analysis showed a significant increase in cartilage thickness in the stromal cell treated groups (HA + STx. vs. ABS, p = 0.028; HA + ST.x vs. HA, p = 0.042; STx. vs. ABS, p = 0.036). Scanning electron microscopy detected a similar heterogeneity of mineralization and tissue porosity in the subchondral zone in all groups. The single intra-articular injection of a stem cell containing, GMP-compliant advanced therapy medicinal product for the treatment of iatrogen induced osteoarthritis of the temporomandibular joint shows a chondroregenerative effect.  相似文献   

12.
The repair of tissue defects after injury is of significant clinical and research importance. A variety of chitosan-based hydrogels have been investigated and applied to address this problem. By using different synthetic methods, the hydrogels exhibit distinct physical properties, including porosity, adhesion, and stiffness. These properties are considered important factors affecting cell proliferation and tissue regeneration. Meanwhile, drug delivery and cell delivery are the two main strategies to improve the therapeutic effects of chitosan-based hydrogels, but the choices of cells or drugs are quite varied and largely depend on the specificity of the treated tissues. The present review summarizes the physicochemical properties of chitosan-based hydrogels and their influences on cells, and lists specific ways to promote the tissue regeneration in different systems of the human body. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47235.  相似文献   

13.
通过阳离子交换树脂对铬洗脱液脱除钠离子(简称"脱钠")的静态实验研究,筛选出脱钠树脂B,并对该树脂的再生工艺条件进行了优化。静态实验结果表明:当硫酸浓度为10%,再生9h,再生体积比(再生剂体积与树脂体积之比)为3:1,树脂再生度可达98%以上。  相似文献   

14.
蓄热式热氧化系统处理高浓度有机废气的实例   总被引:1,自引:0,他引:1  
张洁敏 《广东化工》2006,33(6):90-91,85
本文分析蓄热式热氧化系统在某线路板夹层材料生产厂的应用实例,实践证明蓄热式热氧化处理系统对高浓度有机废气的治理效果明显,对TVOC的去除率可以达到99%以上,并可回收热能。该套系统既可有效净化有机废气,又符合清洁生产的要求。  相似文献   

15.
我国发展环保型再生纤维素纤维的探讨   总被引:6,自引:0,他引:6  
介绍了环保型纤维素纤维的性能、用途和发展前景 ,并与传统粘胶纤维就原料、工艺流程、对环境的影响等作了简单的对比。我国发展环保型纤维素纤维正是时机 ,但在发展中应注意一些问题  相似文献   

16.
Stem cell‐derived products have the potential to represent promising therapeutic approaches for the treatment of a wide range of conditions. Neurodegenerative diseases, like Parkinson's disease or Huntington's disease, neurological disorders, cardiac failure, and blood disorders, among others, may one day be treated using cellular therapies and regenerative medicine approaches based on stem cells. Furthermore, owing to the potential positive impact in healthcare systems, translation of stem cell technologies into clinical applications will bring a broad social and economic advantage worldwide. However, to fully realize this potential, advanced bioprocessing systems are needed to deliver sufficient numbers of cells in compliance with stringent regulatory landscapes and that can be used in a safe and effective manner. This review presents and summarizes recent advancements in the field of stem cell engineering, in particular novel technologies for the interrogation of stem cell fate and systems for the robust manufacturing of cells under standardized, reproducible and strictly controlled conditions. © 2013 Society of Chemical Industry  相似文献   

17.
Osteoarthritis (OA) is a degenerative joint disease that is characterized by inflammation of the joints, degradation of cartilage, and the remodeling of other joint tissues. Due to the absence of disease-modifying drugs for OA, current clinical treatment options are often only effective at slowing down disease progression and focus mainly on pain management. The field of tissue engineering has therefore been focusing on developing strategies that could be used not only to alleviate symptoms of OA but also to regenerate the damaged tissue. Hyaluronic acid (HA), an integral component of both the synovial fluid and articular cartilage, has gained widespread usage in developing hydrogels that deliver cells and biomolecules to the OA joint thanks to its biocompatibility and ability to support cell growth and the chondrogenic differentiation of encapsulated stem cells, providing binding sites for growth factors. Tissue-engineering strategies have further attempted to improve the role of HA as an OA therapeutic by developing diverse modified HA delivery platforms for enhanced joint retention and controlled drug release. This review summarizes recent advances in developing HA-based hydrogels for OA treatment and provides additional insights into how HA-based therapeutics could be further improved to maximize their potential as a viable treatment option for OA.  相似文献   

18.
ABS树脂生产装置废气治理一直是行业的难题,吉林石化公司合成树脂厂引进ABS装置蓄热一体式焚烧炉,采用催化氧化焚烧工艺,处理凝聚干燥和混炼产生的丙烯腈及苯乙烯尾气。焚烧效果好,废气去除率达95%以上,达到环保排放标准,符合同类装置的废气处理工业化需要。  相似文献   

19.
Application of mesenchymal stem cells (MSC) in regenerative therapeutic procedures is becoming an increasingly important topic in medicine. Since the first isolation of dental tissue-derived MSC, there has been an intense investigation on the characteristics and potentials of these cells in regenerative dentistry. Their multidifferentiation potential, self-renewal capacity, and easy accessibility give them a key role in stem cell-based therapy. So far, several different dental stem cell types have been discovered and their potential usage is found in most of the major dental medicine branches. These cells are also researched in multiple fields of medicine for the treatment of degenerative and inflammatory diseases. In this review, we summarized dental MSC sources and analyzed their treatment modalities with particular emphasis on temporomandibular joint osteoarthritis (TMJ OA).  相似文献   

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