【正文】 increase of coal point, need proper layout. 6 calciner coal ratio of the total coal Preheat according to raw material consumption and deposition of the total heat energy accounted for 60% of clinker principle, the proportion of coal calciner 60% of the general control of the remaining 40% of the coal is burning kiln needed, and after calcination The kiln temperature to above 1000 ℃, the waste heat for preheating and deposition of materials used. This proportion has been confirmed by the majority of production line, with specific changes in mineral position, the ratio will change. Installations in operation and the equipment in, on two or three air temperature and air volume control changes will affect the coal calciner Kiln and the proportion of, for example, three times using cooler air hot for a long time, it will reduce the deposition furnace of coal, the other hand, secondary air will save the high kiln temperature of coal. When the operation for some factors that increase a point before and after the coal is limited, in order to meet the energy needs of clinker, it had more coal to another point, this approach can only spend time, difficult to meet longterm, and would create the kind of negative impact. Have found that the use of a production line of anthracite, coalburning Kiln burner plus negative, so to calciner 70% of the coal, attempting to make the extra 10% of the coal to help raise the kiln temperature. Although such operations maintain the kiln is running high, but not because of deposition furnace bustion rate, the remaining amount of coal bustion as the raw material into the kiln, causing serious crust after the kilns, kiln temperature is high, serious, and even diameter meters of the kiln, since the tail end also thick circle, kiln pouring forced to stop the kiln. When the replacement of the burner, the kiln pulverized coal injection increased, the natural adjustment of coal calciner over, kiln and ring crust or symptoms disappear. Conversely, if sufficient oxygen when deposing furnace, 70% of all coal bustion, it is difficult to avoid the deposition of raw material 100% caused by a series of impending disaster. In short, no matter what the situation is disproportionate coal furnace is bound to reflect and cause the system not functioning. 7 calciner symptoms of slow burning Sometimes, the production will encounter this phenomenon: the deposition rate is not low, up to 90%, but calciner furnace outlet temperature is higher than the temperature above 40 ℃, especially in the low volatile anthracite burning when. As the slow burn, leading to still have some fuel in the furnace can not burn a lot of heat is not released in the furnace, you can make on a preheater temperature than the deposition of high furnace temperature, the temperature inversion occurs, so that an export temperature increase of the heat consumption of clinker。 also directly affect the temperature and under a preheater kiln temperature increases too much. Cause the following consequences: ⑴ vertical flue crust serious, but is also part of the kiln kiln lining on the end of the kiln hung thick skin, and even into the ring, if not in time to change this nonnormal state, pouring out after the kilns, the will force the kiln only stop kiln feed。 ⑵ force increase is not on Coal Kiln, so that deposition furnace of coal from 60% to 70%. Thus binding the kiln system to increase the yield. Encountered this phenomenon, if not a careful analysis will often blame poor Kiln due to coal bustion. 8 deposition furnace temperature and under a preheater temperature inversion phenomenon Cause deposition furnace exit temperature is higher than under a preheater temperature is due to the speed of deposition of pulverized coal bustion furnace, and this rate it is being affected by many factors: ⑴ coal itself, the impact of: lowvolatile coal bustion is slow and not conducive to deposition furnace temperature increased. In particular the burning of anthracite has not anticipated the kiln was burning with the students, the next level will be lower than the temperature of preheater calciner temperature. ⑵ wind affect fuel ratio of coal bustion rate, when two or three times irrational distribution of the wind when the wind three times excessive, especially when particularly MFC furnace。 or use of the total air volume is low, coal can not be fully in calciner burning, if still the kiln burning, the next one will show preheater temperature inversion. ⑶ MFC furnace need feeding amount control. Students in the design of the furnace when the feeding amount can be adjusted if such adjustment is particularly important. If too few materials into the furnace, will result in preheater temperature is too low the next level. Address these temperature inversion phenomenon, we must proceed from the causes mentioned above, to ensure that deposition furnace wind, coal, feed quantity and quality to achieve a stable, always maintain a reasonable proportion of the three dosage。 careful to observe the changes of parameters, If you find that unusual, at any time to consider related facilities such as valve and nozzle reliability, but also the crust off of the dynamic changes in length. 控制入窯原料的分解率和分解爐溫度1. 控制入窯分解率的重要性入窯分解率是指生料通過(guò)帶懸浮預(yù)熱器的分解爐和入回轉(zhuǎn)窯之前已分解的碳酸鹽占總的碳酸鹽的比例。入窯原料的分解分解率是檢測(cè)正常運(yùn)行的一個(gè)重要指標(biāo)。如果沒(méi)有懸浮預(yù)熱器分解爐的回轉(zhuǎn)窯，原料的分解率只有20%40%.如果增加管道的火，分解率可以提高到60%70%。增加分解爐，原料會(huì)有超過(guò)90%的碳酸鈣分解成氧化鈣。加入分解率低了，會(huì)增加分解爐和窯的熱傳遞負(fù)擔(dān)，這不僅增加熱消耗，還會(huì)使窯產(chǎn)量降低。這個(gè)指標(biāo)不只是操作的目標(biāo)，也是必須掌握回轉(zhuǎn)窯穩(wěn)定運(yùn)行時(shí)的熱量損失。因此，取樣頻率必須滿足中控操作室對(duì)于操作需求的目的。假如整個(gè)系統(tǒng)是穩(wěn)定的，那么它的入窯分解率總是很高。取樣頻率可以減少，一班一次，甚至一天一次。窯操不穩(wěn)定，操作員可以讓化驗(yàn)人員增加取樣頻率來(lái)達(dá)到檢驗(yàn)要求，以便提供給他們提供操作的更多依據(jù)。2. 回轉(zhuǎn)窯正常的分解率基于現(xiàn)在更多帶預(yù)熱器的分解爐的情況和實(shí)際操作的分解率，入窯原料分解率應(yīng)適當(dāng)控制在90%95%。分解率太低，不能