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The invention discloses a three-dimensional cultivation method for interplanting yew, pine and fern, which comprises the steps of site preparation, transplanting and interplanting, field management and the like. Select an altitude section of 1600-2500m, medium-thick soil with neutral to weak acidity, dig seedling plots, and apply base fertilizer. After raising the yew seedlings, soak the roots of the seedlings in the thin mud mixed with organic fertilizer, and then interplant them in a three-dimensional growth environment where the upper wood is pine and the surface plants are ferns, interplanting between every two rows of pine Two rows of yews, interplant a row of ferns between the two rows of yews. The row spacing of yew is 80~90cm, the row spacing of yew is 50~60cm, the row spacing between yew and pines is 100~120cm, and the row spacing of pine is 160~180cm. After the yew seedlings are transplanted and interplanted, weeding and soil cultivation are carried out 3 to 5 times a year, topdressing is done 2 to 3 times, and pine seedlings are topdressed once. Tests have proved that: according to the interplanting method of the present invention, the survival rate, growth rate and seed setting rate of the yew seedlings can be greatly improved, and the growth rate is fast and the fruit is early, which is suitable for popularizing and planting in a large area.

The invention relates to a road marking removal device provided with double milling wheels, belonging to the field of municipal tools. The road marking removal device concretely consists of a rack, afirst extension device, a second extension device, the first milling wheel, a first drive motor, a second drive motor, an absorption trough, a connecting rod, a fan, a storage box, a battery pack, drivers, wheels, an ultrasonic sensor, conduits, a controller, the second milling wheel, a first sliding groove and a second sliding groove. The road marking removal device provided with the double milling wheels has the beneficial effects that the device can remove road marking; the four wheels are separately driven, so that the road marking removal device can more conveniently turn or turn around;a differential mechanism is avoided being used, so that the road marking removal device is simple in structure and low in cost; trough absorbers are respectively arranged behind the milling wheels forcleaning and recovering the removed road marking; compared with the brush-cleaning type recovery way, the road marking removal device adopts the fan for absorbing to reduce dust amount, thus being easy to work in the city without affecting the municipal environment.

The invention discloses a hickory chick cultivation method, which comprises the following steps: (1) preparation of strains; (2) selection of multiplication sites and fungal materials: selecting woodlands with a certain slope and humus layer thickness as the multiplication The fungus materials are poplar wood, crop stalks and sawdust, and poplar wood is 0.5‑1.5m 3 , crop straw is 0.5‑2.5m 3 (3) planting: during early August-mid-October, according to the setting of one layer of fungus materials and one layer of strains, the stacks in the shape of a "pyramid" are piled up in turns in multiple layers, and the last covering soil is 2-3cm; The heap of the "pyramid" shape structure, the heap length × width × height is 1.2-1.5m × 0.8-1.2m × 0.4-0.6m, the heap spacing is 40-50cm, and the row spacing of the heap is 45-60cm; (4) Moisture management; (5) Picking: After the Morchella mushrooms in the coming year, the feet of the morels turn yellow and the ascus begin to unfold. The hickory chick cultivation method in the present invention can greatly reduce the consumption of poplar fungi while achieving stable production.

The invention discloses a roasting method of ladle in silicon smelting process. The roasting method comprises the following steps: S1. constructing a special tower body for roasting the ladle in a silicon smelting and pouring place, wherein the height of the tower body is 9.6 meters, the largest width bottom is 8.4 meters, the narrowest width of the upper end is 6.3 meters, three sides of the tower body are constructed, another side is hinged with an encapsulation plate, the top of the tower body is closed, two partition plates and four baffles are arranged, each partition plate is provided with a plurality of first openings at equal intervals, the width of each first opening is 175mm-265mm, the baffle is 3.6 meters high, and a plurality of second openings are formed in each baffle. The roasting method facilitates the cyclic utilization of energy resources, the sustainable development and green production can be realized, and the generation of waste gas and dust in combustion can be prevented from polluting the environment, so that the environment protection is facilitated, the roasting time is greatly shortened, the roasting speed is quickened, the roasting efficiency is efficiently improved, and the labor intensity of working staffs can be effectively lowered.