Jinpeng miner
as a pioneer of general contracting project in mining instry, Yantai Jinpeng Mining Machinery Co., Ltd. provides general contracting services for domestic and foreign customers, including beneficiation experiment, mine design, equipment manufacturing, installation and commissioning, personnel training and management contracting. Jinpeng people always adhere to the tenet of technology, high efficiency, quality, safety and customer satisfaction, Try our best to complete every project successfully<
according to the ore properties and ore feasibility study report, Jinpeng beneficiation engineer has developed a cyanidation process for the project, which meets the requirements of the project:
process description
1 feed screening system
the raw ore is transported to the raw ore bin by truck, the raw ore bin is equipped with a lattice screen, and the large particles on the screen are broken manually by hydraulic hammer, Until it falls into the ore bin, a belt feeder is installed at the lower discharge port of the ore bin, the materials are fed into the circular vibrating screen for screening by 1 ᦇ belt conveyor, the procts on the screen are fed into the waste separation device, the wastes are sorted manually and transported to 4 ᦇ belt conveyor by 3 ᦇ belt conveyor, and the procts under the screen are fed into the steel structure powder ore bin by 2 ᦇ belt conveyor
2 grinding classification system
the ore in the fine ore bin is fed to the 4 ﹥ belt conveyor by the belt conveyor, and then fed to the energy-saving ball mill by the belt conveyor. The discharge of the ball mill is pumped into the cyclone group by the slurry pump for classification, the underflow of the cyclone returns to the ball mill for regrinding, and the overflow enters the concentration leaching system after impurity removal by the impurity removal screen
3 thickening leaching system
the pulp is concentrated by the high-efficiency reformed thickener, the overflow flows into the circulating water tank, the bottom flows through the rubber pump into the leaching tank, and the leaching agent is added at the same time. After the two leaching tanks are pre leached, the activated carbon is adsorbed. The activated carbon is added to the final leaching tank, and then graally runs to the front leaching tank according to the regulations. When the activated carbon runs to the third leaching tank, the activated carbon is added to the final leaching tank, When the gold content meets the requirements, the air lifter is used to lift the vibrating screen for carbon slurry separation, the slurry is returned to the leaching tank, and the gold loaded carbon is sent to the desorption electrolysis system
4 Analytical electrolysis system
the gold loaded carbon enters the desorption column after washing and impurity removal in the carbon storage tank, and the desorbed solution prepared by the desorbing solution tank is fed from the bottom of the desorption column by heating and pressurizing, and the gold cyanogen complex in the gold loaded carbon is desorbed, filtered by the filter and then sent to the electrolytic tank for electrolysis to obtain gold mud
5 dosing system
there are many dosing points in the carbon pulp plant. In order to ensure the continuous and accurate dosing, Jinpeng's own patented touch screen computer dosing machine is used to control the dosing at each point, and the reagent mixing and lime mixing are matched
6 dewatering system
the final tailings of the leaching tank are pumped to the full-automatic box filter press through the buffer tank, and the filtered water flows into the circulating pool for recycling. The filter cake is transported to the tailings yard by belt conveyor, and the tailings are transported to the tailings pond by truck.
the following is the case of Jinpeng:
Sudan 1500t / D carbon pulp plant EPC project
Sudan Sahara 1000 / 500t / d
cil100t / D CIL plant (Indonesia)
1 million T / a tin ore dressing plant (Bolivia)
1 million T / a tungsten tin ore dressing plant (Kyrgyzstan)
after nine years of hardship in Peking University, an Jinpeng is now flying to Harvard: on September 24, 2006, 17:19
an Jinpeng seldom has the opportunity to take photos, so when we edit this manuscript, because he has already gone to the United States, photos become a problem. The author tried his best to find only two photos in his home when he was interviewed. Although not very clear, but still can see a kind of self-confidence and strength from his eyebrows
in August 1997, a report of Jinpeng spread its wings in Tianjin daily touched many people. The protagonist of the report, an Jinpeng, is a child of a poor farmer in dayoulong village, Wuqing District of the city. He studied hard by eating instant noodles and wearing mended clothes, and finally won the gold medal in the 38th World Olympic mathematics competition. After that, the child with excellent character and learning was admitted to Peking University with excellent results< Since an Jinpeng entered the Institute of mathematics of Peking University in September 1997, rumors of praise, sponsorship and various kinds have poured in at the same time, but they have not shaken his determination to study hard independently. In July this year, an Jinpeng obtained his doctorate in Peking University. On August 1, under the careful arrangement of Harvard University Tutors, an Jinpeng flew to Harvard University in the United States to study as a postdoctoral student, How did he fly to Harvard, the palace of knowledge that many students dream of? What did he experience? Please see our report -
with strong self-control and learning spirit, he won the bachelor's degree in three years, the master's degree in two years, and the doctor's degree in four years
on September 5, 1997, an Jinpeng started his university life with the admission notice of "Mathematics Research Institute of Peking University". An Jinpeng got his bachelor's degree in three years, and got his master's degree in Peking University. Graate students should have graated in three years. It took an Jinpeng two years to get his master's degree certificate, and he was admitted to the doctoral class of Peking University easily and smoothly. Doctoral students should graate in five to six years. It took an Jinpeng four years to put on his doctoral cap
enters the university to study, the world opens a new world in front of every student. However, there are also impetuous, hypocritical, lazy and other unhealthy tendencies on campus. In order to realize the optimization of learning and development, students have a lot of invisible examination papers to answer<
college students study on their own initiative, unlike the college entrance examination, which has many subjects, short time and great pressure. Some students happily brought back a set of martial arts novels from the library, claiming to make up for the deficit in recent years. Some students borrowed a pile of romantic novels, claiming that they had long wanted to savor the sentimental and dreamy taste, and hated the competition of college entrance examination. Facing the martial arts or romantic novels sent to them by their classmates, an Jinpeng quickly stood up, shook his head and said that he didn't like these books, and climbed his mathematical peak more diligently every day
an Jinpeng's home is known as "the first post of Jinmen". It's more than 100 miles away from Beijing, and it's very convenient to go back and forth by car. Even so, ring his study in Peking University, an Jinpeng seldom went home. Every winter vacation, only the first and second day of the lunar new year stay at home, and the third day of the lunar new year return to school, go into the dormitory to continue his studies or do research. I haven't been home in summer vacation. Every time I go home, my parents always hope that my son can stay for a few more days to talk, but thinking that his son is in a hurry to study, they are always reluctant to send him on the road, telling him to pay attention to his health and often go home to have a look. On the third day of the first month of this year, an Jinpeng is going back to school again. His 16-year-old brother is holding his brother. Looking at his tearful younger brother, Jin Peng had to take him to Beijing University for a few days. He said that he wanted his younger brother to feel the atmosphere of Beijing University, and that he would be admitted to Beijing University in the future
many readers wrote letters hoping that he would study hard and become a mathematician like Hua Luogeng and Chen Jingrun in the future. An Jinpeng said, "it's all very far away. It's my goal." To achieve this grand goal, the most practical thing is to lay a solid foundation, so he would like to use one day as two days. Whoever delays his study time, he will be as rude as a red eyed ox< In the final examination of the first academic year of 1998, he ranked first in the class with full marks; After that, he applied for the sophomore course examination of mathematics department, and the result was full marks. When I applied for the junior mathematics content examination again, the registration period was over, so I had to take the examination again next year. Ann's mother told me that Jin Peng finished three years of College Mathematics in one year. In the final examination of the second academic year, he passed CET-6, and completed all his four-year mathematics courses with full marks. It is reported that in recent years, an Jinpeng has not only completed all the courses of the Department of mathematics and obtained a doctor's degree in mathematics, but also completed the undergraate and postgraate courses of the Department of physics. In view of his excellent academic achievements, Harvard University not only admitted him without examination, but also offered him a full scholarship. He is welcome to continue his study and engage in scientific research at Harvard
he has become a household name from the countryside overnight. In the face of all kinds of temptations, he can still get rid of all interference and concentrate on his studies<
after CCTV's "focus interview" with an Jinpeng, which was shot according to the report of Tianjin daily, was broadcast, the child who came out of the farmyard became a well-known figure in the whole country overnight. First of all, the snowy readers came to tell him that he was overwhelmed. At most, he took back more than 200 letters a day. So many letters, let alone look at them, even if they were opened one by one, he didn't have so much time! An Jinpeng bundled up the endless letters and asked his mother to take them back to read and reply for him. In addition to letters and phone calls, often just sitting down to open the book, the voice of the porter teacher Fu came from the corridor: "an Jinpeng, answer the phone." A rural child who seldom answers the phone calls all of a sudden came to many friends from all over the country. Some expressed concern, some asked about their study and physical condition, and some asked to establish contact. He said that he was really busy and confused, and the main line of life was completely reversed. An Jinpeng had to leave the dormitory and hide in the library, computer room and even on the stone bench and desk on campus
the most difficult ones to deal with are those interviewers who come to the door. Face to face is really worrying. Some asked an Jinpeng to set up a youth friend hotline, some invited him to open a special column in the newspaper, some came to pick him up to record and do special topics, and some asked him to rush back to Tianjin rural home for video recording. More than a dozen people came to invite him to work as a tutor at home... An Jinpeng was introverted and didn't like to appear in public, didn't want to socialize, and didn't want to have unlimited scenery. He clearly knows that students are learning oriented. If they are willing to socialize everywhere, revel in people's compliments, and neglect their studies, their life will be ruined and their efforts will be in vain. Students help him out: can't you be cruel to refuse“ How can we? Face is bigger and language is more and more sincere and moving. We can't refuse it at all. " Helpless, an Jinpeng asked the department leader for help. All calls were handled by the person on ty, and all visits were blocked by the leader. Of course, public welfare activities are excluded
if it's not easy to deal with the above situation, it's even more a test for an Jinpeng to refuse donations face to face. The boss of a telecommunication company contacted an Jinpeng through the author, and wanted to sponsor an Jinpeng, to bear all the expenses ring his university period and the expenses for further study abroad in the future, without any return. In Dashilan, Beijing, a Wenzhou boss engaged in clothing business also found Peking University according to the address told by the author's phone, which was also rejected by an Jinpeng. Over the past few years, more than ten bosses have been rejected by an Jinpeng. An's mother told me that Jin Peng didn't like other people's giving. He said, "living on your own is more ambitious than enjoying other people's giving comfortably. A person can not accept the gift of the society with ease. Every gift from the society is equal to depriving a young man of the opportunity to experience hardships. Anyone who grows up with the help of others, once he loses such an environment, his nerves will be fragile, and his ability to adapt to society will certainly be very poor. "
there are many words of praise and many people want to sponsor, but there are also some inexplicable comments that people can't understand! An Jinpeng's parents told the author more than once that someone called to ask if an Jinpeng had become a fool because he was under too much pressure to study? Some people say that an Jinpeng has a nervous problem and is now hospitalized in Beijing; Others say that an Jinpeng's brain has been g up by foreigners for research. Many cadres and teachers in Wuqing district directly called the author to ask if an Jinpeng was really stupid! There are also many people in villages and towns who say that an Jinpeng participated in the mathematics competition and was given chronic dementia drugs by foreigners. Now he has lost his thinking ability and has become a vegetable lying at home
true or false, specious rumors make the parents uneasy. They once gave up their farm work and went to Peking University to visit their son with doubts. An Jinpeng comforted his parents and said, "don't be led by the nose by the boring rumors. Be your own person, live your own life and go your own way."
fifty cents bean sprouts and fifty cents potato shreds, all year round without socks, his "ivory tower" life is unimaginable
when an Jinpeng attended the world mathematics research society as a student in 2005, an unknown university student came to his residence and thought that an Jinpeng's purse must be full of money. He complained to an Jinpeng and asked him to help him for the sake of his fellow students. An Jinpeng explained to the other party: I am not as rich as other people's legend or your imagination. A few years ago, when he won the Olympic gold medal, the state didn't give him a cent of the bonus, and Tianjin didn't give him a cent of the bonus, because there was no policy in this regard. After CCTV and people's Daily reported, there were a lot of letters from readers, as well as personal sponsorship ranging from tens of yuan to hundreds of yuan. I basically sent them back. Some bosses wanted to sponsor, but I didn't accept all of them. Others asked me on the phone, "are you better off now?" It's probably related to the family environment in which I grew up. I never thought I had a hard life. What's the difference between what I suffered and what my parents suffered? I'm still the same as I used to be. My parents are still planing in the 3 mu field, and my mother is still limping and sweating every day to mow the sheep
college students rely on their parents for their financial resources. Since he was a graate student, an Jinpeng has never asked for a cent from his family. Daily living expenses mainly rely on scholarships and help tutors do some subjects to get paid< After nine years of study and life in Peking University, an Jinpeng is an absolute poor student. The long-term economic constraints make an Jinpeng graally form the habit of "super economy". Careful calculation is his most outstanding mark. After he pieced together his tuition fees, he was stingy in terms of food, clothing, housing and transportation. Every weekend, he went to the campus library and printing factory to work. The money from the work, together with the 60 yuan non-staple food subsidy given by the state every month, was all the expenses for his food, clothing, use, buying books and travelling home. If the plan is not good, there will be a deficit. So in the school canteen, an Jinpeng bought 5 yuan and a half bean sprouts today, and tomorrow
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