纯低温水泥余热发电研究设计【含5张CAD图纸】
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外文资料翻译WASTE HEAT BOILER AND THE KILN WITH THE KILN STARTS AND INTERACTION OFAbstract:After the waste is generally treats the kiln starts, starts again, may also start together along with the kiln. But the latter was still at the exploration stage. This article according to Our company 5000t/d production line afterheat generating system the production experience, the discussion waste along with the kiln start and with kilns mutual influence. 1The boiler starts along with the kiln：(1) the AQC stove to be possible when starts along with an exhaust blower starts, the boiler import and export back plate all starts, bypass back plate entire pass, fire grate cold machine amount of wind completely after the AQC stove, this timely breeze warm approximately 50, the rise speed is smaller than 80/min, may meet the needs which the AQC stove elevates temperature, treats achieves and when the steam condition may merge the system. The fire grate cold machine amount of wind and the wind pressure may have a specific use the exhaust blower entrance back plate to make the adjustment. But this time the electric precipitator enters the rumor warm low, has certain influence to the electric precipitator.(2) SP stove along with kiln ignition, but simultaneously starts time, must change traditional the start method. Usually when start the haze disperses into the atmosphere through the pre-heater crown, is like this already uneconomical, also not environmental protection. The kiln ignites the batch feeding to require the long time, may use the kiln elevation of temperature time fully, carries on the preheating elevation of temperature to the SP stove. Before the ignition, starts the kiln tail row of dust air blower, the haze after the pre-heater, the waste, the humidification tower, the kiln tail row of dust air blower enters the bag dust remover, disperses into the atmosphere through the chimney. This way the influence mainly has to the kiln:a. Must control the pre-heater outlet pressure is zero, otherwise after will create a kiln flame will move, the pre-heater outlet temperature will be high, the oil consumption will increase; b. High temperature air blower volute possibly because the wind speed will lower accumulates the ash; c. Because the bag dust remover the haze temperature creates the condensation lowly; d. Rear part ash grain of thin, the fluidity is bad, the temperature is low when easy to create the system jamming; e. When start must start the tail exhaust blower, consumes the TV University; f. Controls improper, creates the batch feeding time expand .2After the wastes and kilns mutual influence(1) The AQC stove invests, will cause the dust remover inlet temperature to be low, the negative pressure big and the exhaust blower electric current will be big, should adjust the entrance back plate promptly, will maintain a kiln negative pressure, will avoid the negative pressure being oversized, creates the burner tempering.（2）The AQC stove the heat pipe high speed including the dust hazes washout and the attrition, will cause the perforation and cartridge igniters accident. Once the accident occurs, should take the measure positively, prevents the current of water to enter the zipper machine, causes the chamotte to agglomerate. （3）Because fire grate Leng Jiliao the level has the fluctuation, causes the AQC stove to import the waste gas temperature fluctuation to be very big, the steam pressure which and the temperature change produces is also very big. Uses kiln to mix the cold wind the method, although can reduce the waste gas temperature, but is uneconomical. The suggestion operates adopts the stable haze temperature the measure, avoids having the metal slow change and casting material abscission, affects the unit load.(4) The SP stove opens stops and enters the kiln gas quantity the adjustment to involve to the kiln system operating mode fluctuation and the kiln tail high temperature air blower electric current fluctuation. The SP stove opens when stops the operation and the air regulation, so long as in principle maintains the C1 export negative pressure and the temperature is invariable, will not affect the kiln systems stability. Realizes this principle important means is the SP stove import and export back plate, the bypass back plate and the kiln tail high temperature air blower fluid strength coupler three coordinated operations. Opens stops the boiler and adjusts into the kiln gas quantity to control the kiln operator by to operate, because the high temperature air blower inlet temperature will reduce, the air blower output can increase, causes the C1 negative pressure and the high temperature air blower electric current change, therefore should regard the kiln tail high temperature air blower electric current change situation to operate slowly, will adjust the high temperature air blower promptly, will let the kiln system be stable. The high temperature air blower fluid strength coupler control objective is: While maintains the C1 export negative-supply regulation as far as possible, the high temperature air blower electric current does not surpass the rated value outside.(5) Carries on the pre-heater export to the waste entrances pipeline keeps warm, reduces the heat dissipating capacity; the jamming leaks out, enhances the boiler population waste gas temperature. (6) The AQC stove opens stops should pay attention to the dust remover inlet temperature control in 100200, refuses to surpass 260. when necessity adjusts the cold-blast valve.(7) The SP stove opens stops when the prompt adjustment humidification tower spraying of water quantity, after paying attention to the tower, temperature. The SP stove waste gas outlet temperature should act according to stands rubs and enters rubs raw material moisture content to determine that may makes the adjustment through the boiler import and export back plate and the bypass back plate.(8) Kiln and kiln tail zipper machine start, a kiln slanting zipper and the kiln tail two-in-one zipper machine must move, in order to avoid creates the system jamming.(9) The SP stove inspires hits when the investment will cause the gas including the dust density change to cause the kiln tail exhaust blower operating mode to change suddenly, even the air blower is excessively high because of the gas including the dust density overloads jumps stops. (10)If kiln movement, but the boiler suspends shipment for a long time, because the waste entrance back plate closure is not strict, will cause lower part the SP stove to accumulate the ash. 3. The starts and movement adjustment principle (1) The waste movement should not affect the cement production, therefore the boiler start and the maintenance must insist “the side occupation obedience principal work, principal work proper attention to both side occupation” principle, must assure the industrial security, must guarantee industrial the economy. (2) Has unified planning, the safety first, guaranteed that the kiln and the waste are stable. (3) First satisfies in the cement production process raw material drying to the afterheat demand, next is the recycling surplus afterheat maximum limit.余热锅炉随窑启动及与窑相互影响的探讨摘要：余热锅炉一般是待窑启动后再启动，也可以随窑一起启动。但后者仍处于探索阶段。本文根据公司5000td生产线余热发电系统的生产经验，探讨余热锅炉随窑启动及与窑的相互影响。1. 锅炉随窑启动（1）AQC炉可随头排风机启动而启动时，锅炉进出口挡板全开，旁路挡板全关，篦冷机风量全部经过AQC炉，此时风温约50，上升速率小于80min，可满足AQC炉升温的需要，待达到并汽条件时可并入系统。篦冷机风量和风压可以用头排风机入口挡板进行调整。但此时电除尘器入口风温低，对电除尘器有一定影响。（2）SP炉随窑点火而同时启动时，需改变传统的启动方法。通常启动时烟气通过预热器顶部排入大气，这样既不经济，也不环保。窑点火到投料需要较长时间，可以充分利用窑升温时间，对SP炉进行预热升温。点火前启动窑尾排尘风机，烟气经过预热器、余热锅炉、增湿塔、窑尾排尘风机进入袋除尘器，通过烟囱排入大气。这种方式对窑的影响主要有：a.必须控制预热器出口压力为零，否则会造成窑头火焰后移，预热器出口温度高，油耗增大；b.高温风机蜗壳可能会由于风速低而积灰；c.袋除尘器因为烟气温度低造成结露；d.尾部灰粒细，流动性差，温度低时易造成系统堵塞；e.启动时需启动尾排风机，耗电大；f.控制不当，造成投料时间延长。2. 余热锅炉与窑的相互影响(1)AQC炉投入后会造成除尘器入口温度低、负压大和头排风机电流大，应及时调整入口挡板，保持窑头负压，避免负压过大，造成燃烧器回火。(2)AQC炉受热管受高速含尘烟气的冲刷与磨损，会导致穿孔和爆管的
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