The first "leaf blower" was launched in Chongqing sanitation system

In the past few days, many residents of the shopping mall looked back at the freshness: a strange machine, like a giant hair dryer, was blowing the dead leaves of Huang Geshu, flying around the yellow leaves and becoming a landscape. This giant hair dryer is a new generation of "street sweeper artifacts" developed by the Liberation Monument Branch of Zhongwei Sanitation Company.

Attracted many people to watch

Huang Geshu has a lot of fallen leaves, but the streets along Jiefangbei and Jiaochangkou are no longer as large as those of previous years. Where is the fallen leaves? Originally, the Zhonghuan Sanitation Co., Ltd.'s Jiefangbei Branch independently developed a new street-sweeping artifact that was formally put into use last week. It can quickly clear dead leaves without damaging trees.

Yesterday at 1:30pm, opposite Changzhoukou Ruifu Shopping Center, a Changan truck was parked under a yellow alder tree. The cargo compartment was partly covered by green canvas.

“Wow, this is a blind man? Like a cannon.” When the green canvas was lifted, many people came to watch. A roughly two-meter-long silver-white pipe is exposed on the cargo phase. Its caliber is about 20 centimeters. There are handles on it to adjust the direction, and 360-degree angles can be used for work. The air outlet of the hair dryer is similar to the barrel and needs to be used on trucks. In addition, it is equipped with a generator. “We all call it the 'anti-aircraft gun', which is used to blow the leaves.” Li Yanhong, head of the Liberation Monument branch of the Zhongwei Sanitation Company explained to everyone.

At this time, a sanitation worker wearing a hardhat and working clothes started the machine. "Raise the nozzle and aim at dead leaves." Branch manager Xu Liefeng is teaching sanitation workers to use it. The worker who operated the blower pointed the nozzle at the dead leaves. "Well, don't move it. Let it keep blowing."

Quickly blow dry leaves to facilitate cleaning

Seven minutes later, the dead leaves on the tree were scattered. Liu Boshou, 59, hurriedly cleaned the fallen leaves. “Now it's all right. I couldn’t finish it in the past seven hours.” Liu Boshou said that he has worked in dry and sanitation for five or six years. Sweeping and cleaning every day for 7 hours. Now the fallen leaves of the tree are blown off once, and the fallen leaves of a tree can be wiped out in more than 10 minutes.

At 1:44 pm, a truck loaded with deciduous hair dryers drove up to the entrance to the Sun Moonlight Shopping Center and began to blow to another Huang Geshu, who had fewer dead leaves. "Like this tree, you can blow it for two or three days." Li Yanhong said.

“This is quite scientific.” Wenli Zhu, 24, waited for someone to say. She said that she would see the Liberation Monument in previous years. Some sanitation workers used sticks to pound branches and then swept them. This would not only hurt the branches, but also The workload of sanitation workers is also very heavy and very hard.

"Technology Control" leads research and development

The deciduous hair dryer was developed by Xu Liefeng, a 51-year-old manager of the Jiefangbei branch of the Zhongwei Sanitary Company. He studied mechanical engineering and was an out-and-out "technical control." Xu Lifeng said that the defoliation blower was the one that led the technical team for two years, after three major changes and dozens of small changes.

In 2012, Xu Liefeng had the idea of ​​developing a deciduous hair dryer. For the first time, he designed a deciduous hair dryer with a diameter of 60 cm and was powered by diesel. However, the drawback of this hair dryer is that the noise reaches 90 decibels and it is easy to disturb people.

In the face of problems, Xu Liefeng found his old partner. Yang Zhi, who has more than ten years of experience in mechanical repairs, allowed him to participate in the improvement. The defoliation blower noise finally put into use is 60 decibels.

Xu Lifeng said that at present, leaf-dried hair dryer can only be used to clear fallen leaves. He is considering the next step in introducing high-temperature water jets from abroad and using the same platform with leaf-dried hair dryers to clean the oil on the road surface.

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