Method for prolonging cleaning period of Maerz lime kiln channel
A lime kiln and Maerz technology, applied in the field of extending the cleaning cycle of the Maerz lime kiln channel, can solve the problems such as the short cleaning cycle of the Maerz lime kiln channel, so as to reduce the kiln shutdown time, reduce the number of cleaning times, increase The effect of working hours
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Embodiment 1
[0016] Embodiment 1: the method for prolonging the cleaning channel period of the Maerz lime kiln 1 is carried out as follows: the temperature of the annular channel 2 of the Maerz lime kiln 1 is controlled at 850 ℃ to 950 ℃, and each production cycle is The discharge frequency of the heat storage chamber 3 of the Maerz lime kiln 1 is 32 to 40 times, and the excess air coefficient of the combustion air is 1.35 to 1.48.
[0017] In the present invention, by controlling the temperature of the annular passage 2, the number of times of unloading, and the excess air coefficient within the range, the cleaning period of the annular passage 2 of the Maerz lime kiln 1 (hereinafter referred to as the lime kiln) can be changed from the existing one every 10 days Cleaning once in 15 days is extended to cleaning once in 60 to 80 days, which prolongs the cleaning cycle of the annular channel 2 of the lime kiln. Due to the prolongation of the cleaning cycle of the annular channel 2, not only...
Embodiment 2
[0024] Embodiment 2: the method for prolonging the cycle of the Maerz lime kiln 1 cleaning passage is carried out as follows: the temperature of the annular passage 2 of the Maerz lime kiln 1 is controlled at 850° C. The discharge frequency of the heat storage chamber 3 of the lime kiln 1 is 36 times, and the excess air coefficient of the combustion air is 1.35.
[0025] The current cleaning cycle is once every 15 days, and needs to be cleaned 25 times a year.
[0026] In the lime production process, when the method described in this embodiment 2 is adopted, the cleaning period can be controlled once every 70 days, and then 6 times of cleaning is required in 1 year. According to the calculation of 8 hours for each shutdown of the kiln, 19 shutdowns can be reduced every year. Kiln, a total of 152 hours, hourly output: 25t / h, each lime kiln can produce 3800 tons more lime throughout the year.
Embodiment 3
[0027] Embodiment 3: the method for prolonging the cycle of the Maerz lime kiln 1 cleaning passage is carried out as follows: the temperature of the annular passage 2 of the Maerz lime kiln 1 is controlled at 870° C. The discharge frequency of the heat storage chamber 3 of the lime kiln 1 is 32 times, and the excess air coefficient of the combustion air is 1.48.
[0028] The current cleaning cycle is once every 15 days, and needs to be cleaned 25 times a year.
[0029] In the lime production process, when the method described in this embodiment 3 is adopted, the cleaning cycle can be controlled at once every 65 days, and then 6 times of cleaning is required in 1 year. According to the calculation of 8 hours for each shutdown of the kiln, 19 shutdowns can be reduced every year. Kiln, a total of 152 hours, hourly output: 25t / h, each lime kiln can produce 3800 tons more lime throughout the year.
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