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There are such situations as wear and track gauge that is out of tolerance as well as such accidents as offtrack of travelling wheel for coke guide and fracture of track in the process of production and operation more than once due to overage service of the track for coke guide of 6 m coke oven of Coal Coking Chemical Industry Branch Co. so that the coke oven stops production frequently. The size of track is determined to be with the height of 1 61 mm and center distance of 2 70 mm by taking starting points of the tracks at the ends of coke guide as reference as well as combining with the surveying and mapping values of track through on-site measurement and survey. For the construction, old track is completely replaced without stopping production by using the thermit welding method of track joints so that on-site production requirements could be met. This method could be popularized to the replacement of tracks for coke guide in coking industry.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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