40.5MVA密閉電石爐參數(shù)及主要結(jié)構(gòu)設(shè)計(jì)
發(fā)布時(shí)間：2018-11-06 16:02
【摘要】：密閉電石爐是當(dāng)前電石工業(yè)的主流爐型,節(jié)能環(huán)保優(yōu)質(zhì)高產(chǎn)。目前國內(nèi)在運(yùn)行的密閉電石爐容量較小,功率因數(shù)低下,能耗高產(chǎn)量低,運(yùn)行不穩(wěn)定,嚴(yán)重影響了電石的正常生產(chǎn),制約了電石工業(yè)的發(fā)展。究其原因,現(xiàn)有的密閉爐技術(shù)落后的主要原因是工藝參數(shù)不合理以及主要結(jié)構(gòu)存在缺陷。本文源于大連華銳重工集團(tuán)新產(chǎn)品開發(fā)項(xiàng)目,主要從以上兩方面入手,進(jìn)行40.5MVA密閉電石爐的設(shè)計(jì)開發(fā),目標(biāo)是使其成為國內(nèi)先進(jìn)的大容量密閉爐,促進(jìn)電石爐技術(shù)的發(fā)展。論文介紹了電石爐技術(shù)的發(fā)展歷程和電石爐的工作原理,結(jié)合工程實(shí)踐分析比較了開放式、半密閉式和密閉電石爐各自的優(yōu)缺點(diǎn)；計(jì)算確定了40.5MVA密閉電石爐的電爐產(chǎn)量、電極直徑、極心圓直徑、爐膛內(nèi)徑、二次電流等重要工藝參數(shù)；對(duì)關(guān)鍵部件如電極系統(tǒng)、環(huán)形加料機(jī)輸出軸等進(jìn)行了性能分析和選型,通過重要參數(shù)的確定,為主要結(jié)構(gòu)設(shè)計(jì)提供了充分的理論依據(jù)。對(duì)40.5MVA密閉電石爐的主要部件的結(jié)構(gòu)設(shè)計(jì),包括爐體、爐蓋、電極柱、加料系統(tǒng)、二次母線等主要部件的結(jié)構(gòu)設(shè)計(jì)。運(yùn)用類比設(shè)計(jì)的方法,采用了國內(nèi)先進(jìn)的密封爐蓋技術(shù)、組合把持器電極技術(shù)、全對(duì)稱變壓器短網(wǎng)及環(huán)形加料機(jī)技術(shù)等,確定了圓形爐體、分體式水冷爐蓋、組合式電極柱、圓盤給料機(jī)等主要結(jié)構(gòu)形式,以此完成40.5MVA密閉電石爐整體設(shè)計(jì)。對(duì)傳統(tǒng)的設(shè)計(jì)進(jìn)行了技術(shù)改進(jìn),改善現(xiàn)有密閉電石爐的不足。采用耐高溫的密封設(shè)計(jì),使?fàn)t蓋達(dá)到了優(yōu)良的密封效果；采用短網(wǎng)三相等長,提高了入爐功率因數(shù),增加了電爐產(chǎn)量；通過增加接觸元件數(shù)量,使得二次電流分布更加均勻,電流密度降低,入爐電能利用率提高；將環(huán)形加料機(jī)氣缸外置,延長了設(shè)備使用壽命,運(yùn)行更加穩(wěn)定；增加環(huán)保除塵裝置,改善了車間環(huán)境,實(shí)現(xiàn)了清潔生產(chǎn)。通過技術(shù)改進(jìn)優(yōu)化,使40.5MVA密閉電石爐技術(shù)更加先進(jìn)可靠。通過以上主要工作,完成了40.5MVA密閉電石爐整體結(jié)構(gòu)的設(shè)計(jì)開發(fā),繪制了40.5MVA密閉電石爐設(shè)備施工圖,可直接供相關(guān)礦熱爐工程施工借用或參考。設(shè)計(jì)的40.5MVA密閉電石爐系統(tǒng),已經(jīng)應(yīng)用在新疆天業(yè)和中泰電石等多個(gè)項(xiàng)目中,經(jīng)過兩年多的工程實(shí)踐驗(yàn)證,設(shè)備結(jié)構(gòu)可靠,性能穩(wěn)定,達(dá)到了優(yōu)質(zhì)高產(chǎn)低消耗的預(yù)期目標(biāo),在實(shí)際生產(chǎn)中取得了良好的應(yīng)用效果。
[Abstract]:Closed calcium carbide furnace is the main type of calcium carbide industry, saving energy, environmental protection, high quality and high yield. At present, the capacity of closed calcium carbide furnace in operation in China is small, the power factor is low, the energy consumption is high and the output is low, and the operation is unstable, which seriously affects the normal production of calcium carbide and restricts the development of calcium carbide industry. The main reason for the backward technology of the existing closed furnace is the unreasonable process parameters and the defects of the main structure. This paper originates from the new product development project of Dalian Sinovel heavy Industry Group. The design and development of 40.5MVA closed calcium carbide furnace are mainly carried out from the above two aspects. The goal is to make it an advanced large capacity closed furnace in China and to promote the development of calcium carbide furnace technology. This paper introduces the development course of calcium carbide furnace technology and the working principle of calcium carbide furnace, and analyzes and compares the advantages and disadvantages of open, semi-closed and closed calcium carbide furnace in combination with engineering practice. Some important technological parameters, such as the output of 40.5MVA closed calcium carbide furnace, the diameter of electrode, the diameter of center circle, the inner diameter of furnace and the secondary current, are calculated and determined. The performance analysis and selection of key components such as electrode system and output shaft of ring feeder are carried out. Through the determination of important parameters, sufficient theoretical basis is provided for the main structural design. The structural design of main components of 40.5MVA closed calcium carbide furnace including furnace body, furnace cover, electrode column, feeding system, secondary bus, etc. By using the method of analogy design, adopting the advanced technology of sealing furnace cover in China, the electrode technology of combined controller, the technology of full symmetrical transformer short net and ring feeder, etc., the circular furnace body, the split water cooled furnace cover and the combined electrode column are determined. The whole design of 40.5MVA closed calcium carbide furnace is completed by the main structural forms such as disc feeder and so on. The traditional design is improved to improve the existing closed calcium carbide furnace. The seal design of high temperature resistance makes the furnace cover achieve excellent sealing effect, and adopts short net three-phase equal length to improve the power factor and increase the output of electric furnace. By increasing the number of contact elements, the secondary current distribution is more uniform, the current density is reduced, and the utilization ratio of electric energy into the furnace is increased, the cylinder of the annular feeder is placed outside, the service life of the equipment is prolonged and the operation is more stable. Increase environmental protection dust removal device, improve the workshop environment, achieve clean production. Through technical improvement and optimization, 40.5MVA closed calcium carbide furnace technology is more advanced and reliable. Through the above main work, the design and development of the whole structure of the 40.5MVA closed calcium carbide furnace are completed, and the working drawing of the 40.5MVA closed calcium carbide furnace equipment is drawn, which can be directly used or referenced for the construction of the related mine furnace. The 40.5MVA closed calcium carbide furnace system has been applied to many projects such as Tianye and Zhongtai calcium carbide in Xinjiang. After more than two years of engineering practice, the equipment structure is reliable, the performance is stable, and the expected goal of high quality, high yield and low consumption has been achieved. Good application effect has been obtained in actual production.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TQ161;TQ054
本文編號(hào)：2314763
[Abstract]:Closed calcium carbide furnace is the main type of calcium carbide industry, saving energy, environmental protection, high quality and high yield. At present, the capacity of closed calcium carbide furnace in operation in China is small, the power factor is low, the energy consumption is high and the output is low, and the operation is unstable, which seriously affects the normal production of calcium carbide and restricts the development of calcium carbide industry. The main reason for the backward technology of the existing closed furnace is the unreasonable process parameters and the defects of the main structure. This paper originates from the new product development project of Dalian Sinovel heavy Industry Group. The design and development of 40.5MVA closed calcium carbide furnace are mainly carried out from the above two aspects. The goal is to make it an advanced large capacity closed furnace in China and to promote the development of calcium carbide furnace technology. This paper introduces the development course of calcium carbide furnace technology and the working principle of calcium carbide furnace, and analyzes and compares the advantages and disadvantages of open, semi-closed and closed calcium carbide furnace in combination with engineering practice. Some important technological parameters, such as the output of 40.5MVA closed calcium carbide furnace, the diameter of electrode, the diameter of center circle, the inner diameter of furnace and the secondary current, are calculated and determined. The performance analysis and selection of key components such as electrode system and output shaft of ring feeder are carried out. Through the determination of important parameters, sufficient theoretical basis is provided for the main structural design. The structural design of main components of 40.5MVA closed calcium carbide furnace including furnace body, furnace cover, electrode column, feeding system, secondary bus, etc. By using the method of analogy design, adopting the advanced technology of sealing furnace cover in China, the electrode technology of combined controller, the technology of full symmetrical transformer short net and ring feeder, etc., the circular furnace body, the split water cooled furnace cover and the combined electrode column are determined. The whole design of 40.5MVA closed calcium carbide furnace is completed by the main structural forms such as disc feeder and so on. The traditional design is improved to improve the existing closed calcium carbide furnace. The seal design of high temperature resistance makes the furnace cover achieve excellent sealing effect, and adopts short net three-phase equal length to improve the power factor and increase the output of electric furnace. By increasing the number of contact elements, the secondary current distribution is more uniform, the current density is reduced, and the utilization ratio of electric energy into the furnace is increased, the cylinder of the annular feeder is placed outside, the service life of the equipment is prolonged and the operation is more stable. Increase environmental protection dust removal device, improve the workshop environment, achieve clean production. Through technical improvement and optimization, 40.5MVA closed calcium carbide furnace technology is more advanced and reliable. Through the above main work, the design and development of the whole structure of the 40.5MVA closed calcium carbide furnace are completed, and the working drawing of the 40.5MVA closed calcium carbide furnace equipment is drawn, which can be directly used or referenced for the construction of the related mine furnace. The 40.5MVA closed calcium carbide furnace system has been applied to many projects such as Tianye and Zhongtai calcium carbide in Xinjiang. After more than two years of engineering practice, the equipment structure is reliable, the performance is stable, and the expected goal of high quality, high yield and low consumption has been achieved. Good application effect has been obtained in actual production.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TQ161;TQ054
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