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jfr_1983金虫 (小有名气)
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It’s one of the key approaches for iron and steel corporations to efficiently recover the waste heat resources which are used to preheat sinter mixture in order to reduce energy consumption in the sintering process before the ignition device. Centered on the thermal performance of the sinter mixture in the drying process, mechanistic experiments such as differential thermal gravimetric analysis，forced air drying and the tunnel flashing drying, which are based on different focus, are carried out, including a series of experiments of level 10mg, level 10g, and level 100g respectively. The experimental results show that sinter mixture is a typical “three-period” drying materials, that is, the entire drying process consists of shorter rising rate period，longer constant rate period and falling rate period. At the beginning, the drying rate is faster, and then slower. Greater drying rate and the corresponding drying time is in the first 5-7 minutes when the moisture content of sinter mixture is 0.055~0.06kg (water)/kg (material) based on the experimental conditions. In the experiment of tunnel flashing drying, critical moisture content of sinter mixture is about 2.3~3.0%. The temperature and flow rate of hot air are the main factors affect the drying rate, within a certain range, the higher the air temperature the greater the flow as well as the drying rate, the effect of strengthening drying is more obvious. Both hot air temperature and flow should have an appropriate scope dues to the discrepancies exist in the effect of strengthening drying by improving the temperature and flow in different interval. Therefore, sinter mixture is easy to dry, and the existing low temperature waste heat is able to achieve sinter mixture’ drying. 求助 摘要修改~！！谢谢 |
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闲着没事，再给你瞎改一下。
★
wypward(金币+1):谢谢交流 2010-05-24 12:26:54
wypward(金币+1):谢谢交流 2010-05-24 12:26:54
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Efficient recovery and utilization of waste heat in sintering process is very crucial to iron and steel industry (enterprises) in China. In this paper a series of experiments on sinter mixture during a drying process were carried out , and the sinter mixtures were categoried into three weightlevels , 10mg, 10g, and 100g, respectively. The sinter mixture’s drying process can be divided into three stages according to the drying rate, i.e., the low rising rate of drying, the high rising rate of drying and a fixed falling rate of drying. The experimental results showed that Based on the experimental conditions, the moisture content of sinter mixture is 0.055~0.06kg (water)/kg (material) in the first 5-7 minutes, the critical moisture content of sinter mixture is about 2.3~3.0%. The temperature of hot air and the flow rate are the main factors affecting the drying process. within a certain range, the influence of hot air temperature is bigger than the flow rate in the drying process obviously .the higher the hot air temperature is , the larger (greater) the flow rate, which leads to a bigger drying rate and shorten the drying time .The study's results can provide fundamental data for a promising reasonable utilization of waste heat in sintering process. |
6楼2010-05-24 12:23:36
★ ★ ★
sirljz(金币+1):谢谢交流 2010-05-10 20:30:39
sirljz(金币+2):欢迎新虫 2010-05-10 20:30:52
jfr_1983(金币+5):请再帮我看看我修改的第二稿，谢谢 2010-05-22 11:25:14
sirljz(金币+1):谢谢交流 2010-05-10 20:30:39
sirljz(金币+2):欢迎新虫 2010-05-10 20:30:52
jfr_1983(金币+5):请再帮我看看我修改的第二稿，谢谢 2010-05-22 11:25:14
| in order to reduce energy consumption， efficiently recover the waste heat which are used to preheat sinter mixturein before the ignition device. mechanistic experiments such as differential thermal gravimetric analysis，forced air drying and the tunnel flashing drying are carried out, including a series of experiments of level 10mg, level 10g, and level 100g respectively. The experimental results show that sinter mixture is a typical “three-period” drying materials, the entire drying process consists of shorter rising rate period，longer constant rate period and falling rate period. Greater drying rate and the corresponding drying time is in the first 5-7 minutes when the moisture content of sinter mixture is 0.055~0.06kg (water)/kg (material) based on the experimental conditions. In the experiment of tunnel flashing drying, critical moisture content of sinter mixture is about 2.3~3.0%. The temperature and flow rate of hot air are the main factors affect the drying rate, within a certain range, the higher the air temperature the greater the flow as well as the drying rate, the effect of strengthening drying is more obvious. Both hot air temperature and flow should have an appropriate scope dues to the discrepancies exist in the effect of strengthening drying by improving the temperature and flow in different interval. |
2楼2010-05-10 15:33:20
★ ★
sirljz(金币+2):谢谢交流 2010-05-10 20:31:17
jfr_1983(金币+5, 翻译EPI+1):请再帮我看看，我又改了第二稿 2010-05-22 11:24:34
sirljz(金币+2):谢谢交流 2010-05-10 20:31:17
jfr_1983(金币+5, 翻译EPI+1):请再帮我看看，我又改了第二稿 2010-05-22 11:24:34
| 大概改了一下，摘要中要用过去式，还有，楼主用的长句子太多，最好长短穿插。In order to reduce energy consumption in the sintering process before the ignition device， one of the key approaches for iron and steel corporations to efficiently recover the waste heat resources used to preheat sinter mixture. Centered on the thermal performance of the sinter mixture in the drying process, mechanistic experiments such as differential thermal gravimetric analysis，forced air drying and the tunnel flashing drying based on different focus, are carried out, including a series of experiments of level 10mg, level 10g, and level 100g(,) respectively. The experimental results show(ed) that sinter mixture is（was） a typical “three-period” drying materials, that is, the entire drying process consists（ed） of shorter rising rate period，longer constant rate period and falling rate period. At the beginning, the drying rate is faster(fast), and then slower(slow down). Greater drying rate and the corresponding drying time is in the first 5-7 minutes when the moisture content of sinter mixture is 0.055~0.06kg (water)/kg (material) based on the experimental conditions. In the experiment of tunnel flashing drying, critical moisture content of sinter mixture is about 2.3~3.0%. The temperature and flow rate of hot air are the main factors affect the drying rate, within a certain range, the higher the air temperature (is,) the greater the flow as well as the drying rate, the effect of strengthening drying is more obvious. Both hot air temperature and flow should have an appropriate scope dues to the discrepancies exist in the effect of strengthening drying by improving the temperature and flow in different interval(s). Therefore, sinter mixture is easy to dry, and the existing low temperature waste heat is able to achieve sinter mixture’ drying. |
3楼2010-05-10 16:59:49
jfr_1983
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4楼2010-05-19 19:26:31