问题 问答题 简答题

胶带输送机司机特殊操作有哪些?

答案

参考答案:

(一)缩胶带操作:

(1)空负荷情况停车,切断电源并在机尾处将胶带锁固。

(2)检查缩胶带锚固装臵是否安全可靠。

(3)根据胶带机尾承载段长度拆除相应长度的中间架及托辊。

(4)操作收缩千斤顶,使胶带机尾滚筒轴线和转载机头的搭接距离大于0.5m。

(5)启动张紧车进行储带。

(6)胶带张紧好后,空载运转试车,检查调整胶带输送机机尾和机头储带仓跑偏情况。

(二)收胶带操作:

(1)胶带空运转,将所要裁胶带接头转到卷带滚筒处。

(2)利用卡带装臵将胶带卡住。

(3)松张紧绞车,抽开胶带一端接头,将储带端与卷带滚筒相接。

(4)开动卷带滚筒,将胶带卷起,抽开胶带另一端并与主胶带空端相连。

(5)松开卡带装臵,开动张紧绞车,将胶带张紧到规定程度。

(6)点动空载试车,检查跑偏情况,然后载重试车,如有问题及时处理。

单项选择题

Some spiders hunt on the ground, others build webs to trap their food, but the grass water spider catches its prey by running along the surface of the water.
This special water spider lives on the grassy banks of streams where mosquitoes, damsel flies and other insects come to feed and breed.
Although it is one of the largest spiders in New Zealand, it has an unusual ability. It doesn’t disturb the water as it waits for its meal, and there is barely a ripple when it skims across the surface at lightning speed to catch its prey.
Grass water spiders deal swiftly with larger insects like damsel flies by pulling their heads under the water and holding them there until they drown.
After a meal, the grass water spider spends up to half an hour grooming itself. It wipes its eight eyes, brushes its antennae, and takes special care to clean the hairs on its body.
It is the hairs that trap tiny bubbles of air so that the spider can run down a blade of grass and stay underwater for up to an hour when it is frightened. The hairs also keep the spider dry, even underwater.
It is only when the female spider is caring for the young that she does not hunt on the water. After mating, she produces a large egg sac, which she carries around for five weeks. Once the eggs start to hatch, she attaches the sac to some blades of grass or a thistle. She then tears the sac open and releases the tiny spiders into the nursery web.

The passage tells us that the spider ______.

A. feeds grass and thistles to its young
B. lives on blades of grass under the water
C. lives in the grass on the banks of streams
D. eats a meal once every five weeks

多项选择题 X型题