On May 9, Heyuan City, sunny, air humidity, 15%, low probability of mine gas explosion, very suitable for underground mining.

Under the witness of Ni Jie, deputy mayor of Heyuan City, Zhong Bai and Wilson completed the lottery in the square of the office area as representatives of the lottery.

Fortunately, when Wilson drew first, Zhong Bai still drew the lottery for the No. 2 sub-mine, which was also the sub-mine he had last time with the female mine manager Xu Mei.

Wilson didn't have any dissatisfaction with the result of the draw, he just symbolically shook Zhong Bai's hand and let go.

Bradley led a group of workers to five mine heavy trucks carrying all the equipment of the automatic drilling and blasting system and drove to the No. 3 mine.

Zhong Bai's side was a little shabby, and only one mine heavy truck carried 200 DWX31-180/100X hydraulic pillars and went straight to the No. 2 mine.

The rest of the personnel on both sides watched the whole process of mining through the surveillance screen in the common large monitoring room, which is absolutely fair, because everyone can see the situation in the other mine.

The statistics of the ore outlet are also real-time, one ton of bauxite ore is calculated, and the mining time for both sides is ten standard working hours, as long as one person is still at the mining point, or there is a piece of equipment that has not stopped working, then the time is calculated.

Finally, at the end of the ten standard working hours, the side with the most ore output wins.

Wilson and Yuan Jianguo, as the commander-in-chief of the ground, respectively held walkie-talkies to grasp the dynamics of the personnel going down the mine in real time.

"Professor Yuan, nine o'clock is coming soon, good luck to you." Wilson was still that gentlemanly at this time, and took the initiative to reach out and shake Yuan Jianguo.

"The same goes for you." Yuan Jianguo didn't like to talk about non-technical links, so after simply putting down five words, he returned to his seat.

……

Since the installation of new equipment was not allowed in advance, everyone waited at the entrance of the mine until the bell rang at nine o'clock sharp, and everyone was up and running!

The automatic drilling and blasting system on the MD side takes more time to transport and install, but the physical fitness of the MD workers is really not covered, and they can use conveyor belts and mine trucks to transport the links they are standard operations, and when they arrive at the installation point, they need to manually debug the process, and these old churro workers from the underground copper mine in Morensea, Arizona, will instantly play their own advantages!

"Blake, the rock drill is five inches to the left!"

“OK！”

"Shoot the charge hole faster, faster! Burton, you go help Thomas! ”

“ON THE WAY！ (Already on the way!) ）”

"What about the wind press? Is the air compressor installed? ”

"Give me five minutes!"

Listening to the loud but orderly shouts over the intercom, Wilson leisurely cocked his legs in the command room.

Although half an hour has passed since the mine was launched, Wilson is not in a hurry.

He couldn't help but secretly say in his heart that the extra bonus of $1,000 per person really worked, and it was absolutely impossible for these Arizona workers to be in this state in their own mines.

Compared with Wilson's steady sitting on the Diaoyutai, Zhong Bai, who got off the No. 2 mine, encountered some small troubles at the beginning!

"What's going on? Didn't you say the day before yesterday that these cleaned pit logs should not be placed in the mine, but should be pulled to the surface as soon as possible? Isn't that a mistake! ”

Zhong Bai's shout came from the walkie-talkie, and there was some anger, obviously dissatisfied with the lack of preparation in advance.

Wilson brought his own translator this time, and after listening to the translation, he couldn't help but turn his head to look at Yuan Jianguo, who was frowning, and said leisurely: "Professor Yuan, it seems that your side has a bad start." But it's okay, haven't we started to fall into the mine yet? ”

Yuan Jianguo didn't want to hang this deputy director, and he said in his heart, you don't understand, and you're still talking nonsense here?

He didn't bother to fight back, but responded lightly to the other party: "After our hydraulic strut is tested to support the ability enough, it will start to fall into the mine regularly according to the amount of explosives!" You are a steady output of a long stream, we are a traditional model, a wave of explosion will fall a wave! ”

"Huh, huh? Heck, these technical terms sound so complicated that I don't even understand them. Wilson began to get angry: "But my math is not bad, at least I have no problem with Arabic numerals in the thousands, and after saying so much, doesn't it just depend on who is bigger in the last number?" Hahahaha. ”

This arrogant style was exactly the same rhythm as in the conference room of the Ministry of Industry building that morning, and Ma Yingsheng and Yuan Jianguo both cast a contemptuous look at this thing and no longer wanted to deal with him.

Different from the principle of increasing the amount of ore falling by expanding the diameter and height of the automatic drilling and blasting system, the single hydraulic support roof method will not make obvious adjustments to the diameter and height of the mine, and the key to increasing the amount of ore falling is to increase the amount of explosives compared with the wall caving method of traditional pit wood support.

After increasing the number and power of explosives, the amount of falling ore will increase and the force generated by the explosion will increase, but because the supporting force of the supporting roof supported by the DWX hydraulic pillar is strong enough not to cause collapse, the increase in the amount of falling ore in this method will not reduce the safety.

Of course, this is not absolute, for example, when you use pit wood support, you install 3 detonators to detonate, and when you use DWX hydraulic pillar support, you can increase to 5 detonators to detonate, but if you directly go up to 20 detonators to detonate, then don't say anything to increase production, the result must be that the mine collapsed, and everyone died underground.

Therefore, after replacing the new pillars, how much explosives will be added in the first round, this "volume" has become the key to increasing production!

If you have less, then you will lose the first round, and because you are still some distance from the safe amount of explosives, you will have to try one by one, and in the first few explosions, you will not be able to achieve the maximum efficiency.

If there are more, then there is a risk or even a dangerous situation in the first round of explosions, so that the gains outweigh the losses, after all, in underground mines, everyone knows that the highest criterion is to ensure safety.

"Kuroko, the cannon holes are not chiseled, what kind of medicine are you yelling and roaring?" When the searchlight on Zhong Bai's head had just swept over a blast hole, he immediately noticed a slight skew, and immediately loudly stopped the other party's action of filling the medicine.

"I ...... I ......"

This worker named Kuroko is actually a journeyman, but he usually doesn't talk much in the mine, and when he encounters this kind of situation where the blast hole is not chiseled, the former mine manager usually takes the lamp and sweeps it, and then simply says the two words "align!" Kuroko immediately entered the state of muscle memory and began to adjust.

But Zhong Bai's rhythm was completely different, and there was a bit of emotion in his words, so that Kuroko stood in place for five seconds and didn't move his hands, a little unsure of what to do!

Fortunately, Yuan Jianguo, who was in the command room, saw this detail keenly, so he immediately grabbed the walkie-talkie and reminded Zhong Bai: "Xiao Zhong, don't worry, speak concisely to the workers, don't be emotional!" ”

"Yes, Teacher Yuan!" Zhong Bai was in the middle of Lushan and didn't notice it, but when he suddenly heard Yuan Jianguo's voice, he realized that the sunspot was confused by himself, and immediately realized the existence of the problem, so he didn't say anything more, and walked straight in the direction of the sunspot.

Zhong Bai stood in front of the sunspot and pointed to the cannon hole, and then pressed down with the palm of his right hand, as soon as this action came out, the sunspot immediately moved!

"Xiao Zhong's understanding...... God! Seeing this scene through the monitor, Yuan Jianguo said in surprise.