Ground pump, the full name is "concrete pump", there are very few in China, and it is normal for Lu Dahai to have never seen it.

Fang Bai explained to Lu Dahai while pointing with both hands: "This ground pump is a construction equipment that transports concrete under pressure through pipelines, which can send concrete to a vertical height of hundreds of meters, and can transport dozens of square meters of concrete in an hour, instead of using dump trucks to load them one by one like you, and then send them up with a derrick hoist, which is too inefficient."

The inner diameter of this pipe is about ten centimeters large, and it is no problem to transport stones below 50 mm, but the proportion should not be too large. ”

Lu Dahai shook his head and smiled complimentarily: "Mr. Fang, I really haven't seen the equipment you mentioned, if there is, it's too convenient, it's a bit exaggerated to transport dozens of square meters of concrete in an hour, we need four or five dump trucks to pull one side of concrete now, and a single derrick hoist can't transport 15 square meters of concrete in an hour." ”

Fang Bai was silent, one side of ordinary concrete weighs about 2.2 tons, heavy concrete may reach 2.5 tons, and light concrete also has 1.9 tons.

The dump truck used at the construction site can hold about 0.2 cubic meters of concrete, about 500 kilograms.

The company's current derrick hoist, a derrick with two motors, a motor with an elevator position is put into a dump truck, so a motor can only pull one car.

The three-storey building is high, and it takes more than a minute for each round of dual motors to carry it, and it can transport up to 100 bucket cars in an hour, which is 20 square meters of concrete, and can pave about 160 square meters and 12 cm thick double-layer floor slabs.

The actual situation is not so optimistic, the workers will be tired, and the mixing concrete may not be able to keep up, a single derrick and two motors can not pull 20 square meters of concrete in an hour.

For example, the single floor area of the first phase of the shopping mall is 5,000 square meters, and when they pour the floor slabs, they install two derrick positions, which require twenty or thirty people to work at the same time, and it takes two or three days to water about two or three hundred square floor slabs in one hour, and it takes two or three days to water one floor slab.

The higher the floor, the longer the crane carry, and the lower the efficiency of pouring concrete.

Lu Dahai only told him some details, Fang Bai only needed to think about it, according to the data he knew, he would calculate the general situation in a while, this is the index finger gold finger LV4, and the power of logical thinking ability is increased by four times.

If there are ground pumps and sky pumps, such as ground pumps with a power of seventy or eighty kilowatts, they can transport dozens of square meters of concrete to a vertical height of dozens of meters in an hour, which can save a lot of manpower.

Recently, Fang Bai has been thinking about what engineering equipment Xinghai Machinery Company wants to engage in.

He knows that with the rapid development of China's construction industry in the future, the demand for engineering construction equipment is very large.

Now, he has a bit of a clue, but he needs to do some market research.

"Okay, I'll ask Song Ji and see if they've seen it, there is already this kind of equipment abroad."

"Anyway, I've been doing it for so many years, and I've never seen the kind of equipment you said." Lu Dahai is very sure, "If there is that kind of equipment, I think we should buy one back, the efficiency of pouring concrete is too low, and the dump riders are blistered for a day." ”

Fang Bai nodded, this kind of equipment is not cheap, as far as he knows, tens of kilowatt-hours of concrete pumping pumps will be sold for hundreds of thousands of yuan after 20 years.

In these years, industrial equipment is not cheap, just raw materials are cheaper, but the price is not much different from later generations, and some equipment will be more expensive.

If the product has just been developed, the price is even higher.

In these years, the only ones that can afford it are large construction companies.

Fang Bai chatted with Lu Dahai for a while and asked him to pay attention to construction safety.

Fang Bai found Lin Ping, Song Ji, Li Fugui and others to inquire about the situation of the ground pump, and they all said that they had not seen it.

It seems that this device is not available yet.

In fact, Fang Bai does not know much is that China began to explore the development of concrete pumps in the 70s of the 20th century, and the introduction of technology in the 80s began to manufacture concrete pumps, but the real sense of domestic concrete pump manufacturing should start from the establishment of Zoomlion, the predecessor of Zoomlion, in 1993.

In 1994, Shenyi Heavy Industry Co., Ltd. developed the first large-displacement, high-pressure concrete pump, which is the first trailer pump with independent intellectual property rights development system in China, which is more than the ground pump of a mixing function system.

After more than 20 years of development, China has become the world's largest producer of concrete pumps.

According to relevant data, in 2007, about 3,000 pump trucks and 6,500 trailer pumps were sold.

In the same period, the total output of foreign concrete pumps was only about 12,000 units.

In general, the annual market size of domestic concrete floor pump tow pump and sky pump equipment exceeds 20 billion yuan, and it is very stable.

If the difficulty of development, the simplest is of course the ground pump, and then the tow pump, the most complex must be the day pump, under the same power, the price of the sky pump is more than ten times that of the ground pump.

The price of foreigners' products is several times that of China.

If you build a building with a height of tens or even hundreds of meters, it is really inconvenient to have a concrete pump.

If Fang Bai develops this thing and develops it within a year, then Xinghai Machinery Company will be the first to enter this market.

Relying on the role of his golden finger, in terms of product performance, Zoomlion and Shenyi, which have not yet been established, cannot compete with Xinghai Machinery Company at all, but how many units can be sold depends on the ability of each company.

Perhaps, Shenyi and Zoomlion saw that Xinghai Machinery Company was so fierce and directly changed the R&D trajectory of the two companies.

Fang Bai is not clear about the concrete pump market for the time being, but he knows that Shenyi has not yet entered the construction machinery industry, and Zoomlion has not yet been established, so if he develops it, it is the first company in China.

Fang Bai returned to the mall office and saw Qin Shuyu and the accountant exchanging accounting-related knowledge.

After having lunch in the mall, Fang Bai took Qin Shuyu to the book city to find information.

Of course, I didn't find the information, Fang Bai felt that if he wanted to find it, he would have to find it in Shencheng Jiaotong University, and it was best to consult relevant professors, maybe he would come into contact with relevant foreign materials.

This is the trouble of not having the Internet, and it is very difficult to find technical information.

However, Fang Bai has already decided to develop a ground pump.

At about four o'clock in the afternoon, Secretary Wu Xingyun called Fang Bai and asked him to go to the county compound tomorrow to discuss industrial land matters.

The next morning,

Fang Bai and his father-in-law came to the conference room of the county compound to discuss industrial land with the county leaders.

The two sides chatted for half an hour, and then went to the site for inspection.

At four o'clock in the afternoon, the two sides agreed on the matter.

The county sells 50 acres of industrial land, and the preferential land price per mu is only 10,000 yuan, which is limited to the investment in valve factory construction.

It is located in the west of Oubei along the river, Wuxing Village, about five kilometers away from Xinghai Shopping Mall, and has reserved nearly 300 acres of expansion land for Jiayu Company, but if Jiayu Company does not invest in eight years, this vacant land will be handled by the county independently.

The location of Fang Baixuan is very good, the main transportation is convenient, and it is next to the future Sunshine Avenue.

The county will plan an industrial park of two or three thousand acres near Jiayu Company, which is dedicated to the investment of valves and other small workshops to create the industrial characteristics of Yongjia County.

The county plans to sell land in a unified manner, and the time is limited to build and invest, and the first time you move in, the cheaper the land price is.

After the planning is completed, the county notices that it prohibits the arbitrary construction of industrial workshops, advocates unified relocation to industrial parks, and prohibits investment in industry by planning plots for commercial areas in the future.

The price of land in the commercial area will have to rise.

In fact, since the last time Xinghai Company purchased residential land, the price of surrounding land has risen sharply, and it also strictly controls land transfers, and intends to cover it, feeling that after the construction of Xinghai Shopping Mall, the land in Oubei will rise sharply.

Fang Bai and his father-in-law took care of the land, and the follow-up procedures were taken care of by the father-in-law.

On August 8, Fang Bai, his father-in-law and Qin Shuyu went to the industrial and commercial department to change the shares and registration information of Jiayu Company.

Fang Bai transferred the funds to his father-in-law, 500,000 yuan for the purchase of land, and another 1.5 million yuan for the construction of factories, dormitories and office buildings, which were planned to be put into use in a year.

At present, Jiayu Company is profitable, and it will be used to invest in equipment in the future.

Fang Bai and his father-in-law discussed the first valve product, and planned to start with the most familiar WCB cast steel gate valve and directly develop medium and high pressure valves.

Fang Bai is responsible for the design of the valve, he is familiar with this industry, there is no need to conduct market research at all, and he knows the structure and approximate size with his eyes closed.

He practiced the design of 6-inch (DN150) 600-pound (equal to nominal pressure 10Mpa, PN100) gate valve.

This kind of valve is mainly used in the temperature within -29 to 425 °C, the main function is to connect or cut off the medium in the pipeline, the medium can not be too corrosive, the market demand is very large, such as oil refining units, hydropower stations have a large number of applications.

As for the ground pump, he has to slowly check the information and strengthen learning, and he is not currently capable of designing.

After Xinghai Machinery Company recruits designers, it will work with scientific researchers to tackle key problems.

(End of chapter)