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国内间歇式抽屉窑的自动控制都是采用开环控制的方式,在氧化阶段较易实现温度、气氛的自动控制,在还原阶段能实现温度的自动控制,但对气氛无法进行真正的自动控制。针对抽屉窑还原气氛自动控制的问题,我们对窑炉控制系统、执行机构、控制方式进行了设计和改造,实现了抽屉窑在还原阶段温度、气氛都能进行自动控制,在技术上达到了国内先进水平。 相似文献
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本文介绍了国内自行研制的1750℃高温自控燃油抽屉窑的主要技术性能和结构特点。阐述了该窑运行调试的操作要点,并通过与传统倒焰窑的对比分析,表明了该窑具有的独特优点,它开创了1700℃以上自控燃油抽屉窑国产化的先例,是现代技术陶瓷和高级耐火材料理想的烧成设备。 相似文献
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本文介绍了国内自行研制的46米^31485℃全自控燃油抽屉窑的主要技术性能和结构特点,重点阐述了该窑的运行调试情况,并与传统倒焰窑作了技经指标对比分析。实践表明,该窑已接近和达到从国外引进的同类型窑炉的水平,它开创了我国1450℃以上大容积自控抽屉窑国产化的先例。 相似文献
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本文着重介绍了30M^3燃气节能抽屉窑的结构特点,全面阐述了该窑温度、压力控制系统以及安全保护措施。 相似文献
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本文着重介绍了30m^3燃气节能抽屉窑的结构特点,全面阐述了该窑温度、压力控制系统以及安全保护措施。 相似文献
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早在上个世纪80年代初期,抽屉窑这种使我国陶瓷烧成技术发生变革性进步的新型烧成设备,通过我公司(原机械部第七设计研究院窑炉技术开发公司)科技人员的自行研发以及后来的消化从国外引进的先进窑炉技术,率先在我国电工陶瓷行业逐步发展、推广。到目前为止,抽屉窑以其周转灵活、窑内温度、压力、气氛分布均匀并容易实现自动控制,烧成周期短,能耗低,质量高, 相似文献
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Based on the TK7 high-temperature tunnel kiln computer control system, this article describes the control line system, the automatic loop control which has been realized in firing zone temperature, inner and bottom pressure and flow, and logic control of kiln doors and pusher, etc. In addition, this system integrates the product information management system of magnesite brick and efficiently ensures the important process parameters. During three months performance of the control system, all parameters and energy consumption have turned out a good result. 相似文献
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介绍了自吸式烧嘴液化气梭式窑自动控制系统的设计与选型,对控制系统的实际工况进行了试验分析,验证采用MCGS组态软件开发自吸式烧嘴液化气梭式窑的控制系统,实现对温度进行实时采集、对煤气量和助燃空气量进行自动控制的可行性。 相似文献
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The besign principle, system logical sequcnce and method of automatic process control systernof the horizontal roller kiln for glass tempering are comprehensively describcd in this paper.Practical experience shows that this control system is rcliable, stable and easy to be adjusted. It isalso proved that this system is highly automatic and makes products with high quality.It lays thefoundation for adopting DCS control system. 相似文献
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本文详细介绍了PLC在全自动隧道窑的主控制、窑头控制、窑尾控制系统中的运用。PLC可以对窑炉的风机系统、窑车自动循环系统、燃烧系统、电机超载及各温度、压力故障进行有效的控制和报警。通过PLC编程电路的控制,可以很方便地实现整个窑炉运行的安全可靠。 相似文献
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根据麦尔兹石灰窑特点,结合邯郸麦尔兹石灰窑生产经验,介绍了当11m卸料平台温度过高时需要检查的设备及采取的相应措施。控制好麦尔兹石灰窑11m卸料平台温度,有利于生产优质产品,并延长石灰窑的使用寿命。 相似文献
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介绍了AW型转杯式自控燃烧装置的结构、工作原理及其在钛白转窑中的应用。试验结果表明,该装置能实现转窑燃烧系统的无人自动点火和自动控温,且所得的钛白质量好。指出了该装置存在的问题及其解决方法。 相似文献
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S. L. Kozhevnikov T. P. Voronchikhina A. G. Belogrudov 《Refractories and Industrial Ceramics》1971,12(7-8):499-503
Conclusions Statistical relationships were obtained between the parameters of the quality of magnesite powder upon discharge from a rotary kiln, which allow the automatic control of the quality of the finished product.The Magnezit Factory is testing equipment for automatic determination of the bulk density of a liter of powder.The implementation of this equipment has demonstrated the validity of this scheme; industrial implementation can be recommended only after working checks have been made on the equipment in order to explain the reliability of its various units in operation and the scheme as a whole.With the automatic control of the quality of the finished product the information can be used in the despatch system.Translated from Ogneupory, No. 8, pp. 23–28, August, 1971. 相似文献
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W. D. Richardson 《Journal of the American Ceramic Society》1925,8(6):254-260
Requirements of economy and fuel conservation, and incidentally the elimination of the smoke nuisance, make it necessary for America to follow the lead of Europe in adopting the regenerative continuous kiln of some kind for the burning of all clay products. For common brick the most practical and economical kiln is the annular kiln, a modification of the original Hoffman “Ringofen.” With simple automatic stokers and induced draft there is more rapid advance of the burning of the annular kiln and a greater saving of fuel. The compartment kiln and the tunnel kiln is unnecessarily expensive in installation and upkeep for low-priced product. Basis of different forms of the annular kiln is given. 相似文献