my scientific age

Chapter 286 The Classic Chinese Walking Tractor!

Perhaps what Professor Zhuang said may become 'affirmative'. According to the timeline, as the time of the Anti-Japanese War reaches 1940, the relationship between the organization and Nanjing will deteriorate rapidly. With the urgency of Brother Zhongzheng and the military commander, it is definitely He will try his best to deal with Professor Zhuang Qianding.

This is not an alarmist, but a fact.

"About traffic and transportation, please mention your thoughts." Zhuang Qianding smiled and asked after changing the conversation.

Traffic and transportation, these are the other two major problems facing the steelmaking system, and are very important. Solutions must be thought out in advance and prepared for a rainy day.

Zhuang Qianding doesn't like cramming.

The development of industry is inseparable from the convenient transportation system and means of transportation. Because the base area is located on the Loess Plateau, the road conditions are very poor. Most of the roads are loess roads, and a few main roads are gravel roads. The road load is low and the road is narrow. May cause road blockage.

This kind of road network system is completely unable to bear the astronomical terrifying flow of raw materials in steelmaking and mines.

Secondly, transportation in the base area is also a big problem. Not to mention heavy-duty trucks and trains, there are not many tractors. According to the information obtained by Zhuang Qianding, people in northern Shaanxi travel by horse-drawn carts, ox carts and wheelbarrows. and legs.

Horse-drawn carts, bullock carts, and wheelbarrows can transport food, but they cannot satisfy the huge appetite for various industrial raw materials in steelmaking.

Theoretically, every ton of molten steel smelted by the oxygen top-blown converter process consumes 0.95 tons of molten iron, 150 kg of scrap steel, 1.4 kg of limestone and various slagging materials, with a total of about [-] tons.

Because the blast furnace ironmaking process is far inferior to that of later generations, each ton of pig iron requires 1.9 tons of iron ore, 0.5 tons of coke and 50 kilograms of limestone, while one ton of coking coal can only produce 0.6 tons of coke.

Calculated according to this data, based on the annual output of 3.5 tons of steel, the various industrial raw materials are roughly -

3.675 tons of molten iron,

0.5 tons of scrap steel,

0.5 tons of limestone,
5.6 tons of iron ore,
1.6 tons of coke,

2.2 tons of coking coal.

The total mass of industrial raw materials is as high as 14 tons!

Moreover, this is only the industrial raw material demand of the steel plant. The sulfuric acid plant and the gunpowder plant both require various industrial raw material requirements in the thousands and [-] tons.

With the existing means of transportation in the base area, it is impossible to undertake such a huge amount of transportation.

If the transportation system and means of transportation cannot be solved, it is difficult for the base area industry to develop at a high speed.

When Yu Hua heard these two questions, he simply sorted out the words and said slowly: "The transportation system, the students believe that the trunk road network of Shenmu Mine-Steel-making Plant and Ikezhao League-Shenmu-Yulin-Yancheng should be established, and cement Based on the road, the multi-section construction method is adopted, and a large amount of manpower and material resources are used to establish a prototype of a transportation system in a short period of time.”

Regarding traffic and transportation issues, he had considered it a long time ago, and it was his idea to build a trunk road network based on cement roads.

"Why don't you choose the cinder road? The cost of the cinder road is low, and the coke plant and thermal power plant can provide a large amount of cinder every year." Zhuang Qianding thoughtfully and nodded lightly. The idea is to use cinder, not cement.

The cost between the cement road and the cinder road, excluding labor and transportation, the cement road is only about one third more expensive than the cinder road.

"One is that the cinder road wears a lot to the tires. In the case that artificial rubber is not solved and the supply of natural rubber cannot be obtained, it is better to choose a cement road. The second is that the cement road is cost-effective, has a long life, and is difficult to construct, maintain later and resist load. Performance and other aspects are better than cinder road, although cinder road is cheaper, but the long-term benefit is not as good as cement road.”

Yu Hua gave his reasons: "Third, we can take this opportunity to establish a cement industry. Cement can be used to build roads, build houses and bridges, and build fortifications. Of course, it does not mean that cinder is completely abandoned. It can be used in rural areas and various branch lines. The roads are paved with cinder roads."

Mainly cement, supplemented by cinder, which is the basis for the prototype of the transportation system.

In fact, in addition to transportation needs, cement is more useful in the military field.

"Okay, I support this plan, how can we solve it in terms of transportation?"

Professor Zhuang Qianding took out the notebook and pen he carried with him at some point, and wrote down the transportation system plan given by Yu Hua. After recording, he continued to ask: "I think it is possible to develop a truck, which is mainly powered by diesel, and not suitable for gasoline engines. The low temperature environment in northern Shaanxi in winter.”

After he finished speaking, he opened the office door and motioned for Yu Hua to enter.

"Professor, I support your proposal, but personally, I think it's too hasty to develop trucks. I think we can start with tractors and gain experience before building trucks." Yu Hua followed Zhuang Qianding's footsteps, entered the office together, and pondered for a while. Fan, express your inner thoughts.

It is an uncertain factor whether it is possible to build a truck that meets the performance standards and is reliable and stable.

Reliable and stable!

It would be too painful to build a truck that stalls after two steps and breaks down for a while.

Compared to trucks, tractors look fresh and realistic.

Tractors are far superior to trucks in terms of technical difficulty, reliability and practicality.

The most important thing is that the economic cost and time cost of building one truck can make at least two tractors.

"You are right. I have ignored the objective situation of the base area. For the manufacturing level of the base area, building a tractor is indeed the best choice." Zhuang Qianding heard the words, thoughtful, and immediately understood what he was thinking about. Incomplete, he agreed with Yu Hua's proposal, and then said, "What type of tractor should we use?"

This is his problem, ignoring the actual situation of the base area. With the almost zero industrial system and machinery manufacturing industry before the base area, it is still very difficult to build power machinery such as trucks.

It can be built. After all, he is a mechanical expert himself. There is no problem in designing a truck, but whether it is reliable and stable...

do not know.

The car-building plan was temporarily put on hold, and the direction was determined to be a tractor. What we need to do now is to conceive what type of tractor to build.

Tonnage, load weight, engine power, speed.

"Students have an idea." Yu Hua's mind already came to the walking tractor he had encountered in the countryside by chance. He smiled, and then took out a design drawing, holding a pencil in his hand, and quickly drew a concept map.

On the drawings, a concept drawing of a tractor with a unique and beautiful appearance was quickly presented.

Single-cylinder front drive, panoramic sunroof, independent exhaust, 360-degree panoramic image, multi-angle adjustable seat, heavyweight key, manual shift lever, invincible rear space and Mercedes-class trunk baffle, immersive All these elements make up an unprecedented power machine - the Chinese classic walking tractor.

(End of this chapter)