Daming mining
Because the bamboo is empty, there is a suction, which can remove the poisonous gas in the roadway, not just gas
(1) carbon monoxide (CO): a colorless, tasteless and odorless gas; When the content is between 13% and 75%, it can cause explosion in case of fire; Carbon monoxide is extremely toxic. When its content reaches 0.4%, people can be poisoned and die in a short time The maximum allowable concentration is 0.0024%(2) hydrogen sulfide (H2S): a colorless, slightly sweet, rotten egg flavor gas, easily soluble in water, can burn and explode in case of fire; Hydrogen sulfide is extremely toxic. It can poison the blood and strongly stimulate the mucous membrane of eyes and respiratory system The maximum allowable concentration is 0.00066%
(3) sulfur dioxide (SO2): a colorless gas with strong sulfur and acid smell, which can proce sulfuric acid in contact with the moist epidermis of the respiratory trachea, stimulate and paralyze the cell tissue of the upper respiratory trachea, and inflame the lung and bronchus The maximum allowable concentration is 0.0005%
(4) nitrogen dioxide (NO2): reddish brown, soluble in water, is a highly toxic gas, which has a strong irritating effect on human eyes and respiratory organs The maximum allowable concentration is 0.00025%
(5) methane (CH4): methane is a common harmful gas in coal mines, which is colorless, tasteless, odorless and nontoxic; It is lighter than air and often gathers above the roadway. When its content in the air is high, it can rece the content of low oxygen and cause suffocation; It is explosive and its explosive concentration is generally 5% - 16% The allowable concentration of biogas in the regulation is different from each point underground, which will be detailed later (6) ammonia (NH4): it is a colorless gas with strong odor like ammonia; It is extremely toxic, can stimulate the skin and upper respiratory tract, and can seriously damage the eyes The maximum allowable concentration is 0.004%7) carbon dioxide (CO2): it is a colorless, slightly toxic, slightly sour gas, which does not support combustion and does not maintain long-term breathing. It is heavier than air and often gathers at the bottom of the roadway and the end of the downhill with poor ventilation; It is soluble in water and forms carbonic acid, which can stimulate the mucous membrane of eyes, nose and throat According to the regulation, the maximum allowable concentration is 0.5%
bamboo is used to remove these toxic gases, and can increase the oxygen in the roadway to prevent workers from poisoning! And gas explosion
extended materials:
the philosophy of Tiangong Kaiwu
Tiangong Kaiwu is mainly rooted in China's inherent cultural tradition. It is different from the orthodox Neo Confucianism at that time
This trend of heresy reflects a new social phenomenon and the orientation of the times. However, personal thoughts can be different from the mainstream, but can not be detached from the times. In ancient times, agriculture was the top priority, so song Yingxing's articles also reflected the idea of valuing grain over gold and jadePan Jixing, an expert in the history of Chinese science and technology, mentioned in the critical biography of song Yingxing that "Heaven works to open things · Zuo Xian" and "on Qi · Qi Sheng 5" both said that "there are five Qi in heaven, so there are five elements". He thought that the five elements of water, fire, earth, gold and wood are derived from the corresponding Qi, which is not the most primitive origin of all things
after analyzing the mutual relationship and transition level of water, fire, earth, gold and wood, that is, after solving the mutual relationship and transition between the material transition level of "Qi and form" and the material transition level of form, song Yingxing further elaborated the generation of all things
According to Tao long, water and fire are both economical and earth is harmonious. The country of ten thousand rooms is short of thousands of people every day, and its civilian use is also very complicated. " This means that by the interaction of water and fire with clay, ceramics can be sintered for daily use In his commentary on Song Yingxing, pan Jixing believes that song Yingxing discusses the formation mechanism of all things in nature, and divides organisms into two categories: plants and animals. In the development sequence of organisms from low level to high level, plants are more basic. He subdivided animals into insects and fish, birds, Zou Lu and finally "the spirit of all things"he believed that animals evolved and generated from plants, and plants evolved and generated from inorganic substances, which were generated through the interaction of water, fire and civil engineering in the final analysis. Song Yingxing wrote: "the Qi promotes a grain from the ground. The small one is the canopy, and the large one is the tree covering the ox's dry sky. How much is this grain originally? The rest of the world is transformed by Qi. " Plants grow by water, soil and fire (combustible organic fertilizer)
All kinds of plants mentioned by song Yingxing in Tiangong Kaiwu, such as rice, wheat, hemp, beans, mulberry, cotton, Pueraria, herbal dyes, oil plants, sugarcane, bamboo, Broussonetia papyrifera and all kinds of trees are planted according to this principlehe described in more detail how these plants were made into vegetable oil, sugar, clothing materials, dyes, paper, boats and other procts through the interaction of water, fire and goldwood, as well as wood, oil press, sugar cart, textile machine, various farm tools, cooking pots and other tools and daily necessities
although grain planting mainly depends on water, soil and wood, it can't do without fire and gas. Here, fire and gas are expressed in the form of sunshine. Without sunshine (Yang Qi, fire Qi) and continuous rain (Yin Qi, water Qi), proction will be reced
as for grain processing and food manufacturing, it is impossible to leave water, fire and wood. As a result of the interaction of five Qi, various plants and their processed procts are proced, which, like all things in the inorganic world, are used for daily use by the people. In the final analysis, they are generated from the material level of Yuanqi, yiyiyiqi and Yixing
Pan Jixing believes that song Yingxing described in detail the technology of making various procts from animal body in his Tiangong Kaiwu. According to his philosophical point of view, although the animal kingdom belongs to a higher stage of development than the plant kingdom, its material origin is still graally generated and evolved from the material levels of vitality, shape and Qi, shape and vegetationalthough he did not tell us how long it would take to complete these transitions. When he discussed the material unity of animals, plants and minerals, he also talked about the reasons for the diversity of the material world
In Song Yingxing's critical biography, pan Jixing believes that because the interaction of water, fire, earth, metal and wood is ever-changing, there are many things. As song Yingxing said in "Heavenly Creations", many natural objects proce innumerable things that nature does not have. In his words, it is "artificial labor, or made by heaven" (salt proction)Pan Jixing mentioned in his commentary on Song Yingxing that when it comes to the diversity of things in the material world, song Yingxing wrote in his preface to Tiangong Kaiwu: "the earth is covered by heaven, and there are tens of thousands of things, and because of this, things will never be left. It's human power. The main idea is that there are tens of thousands of things in the earth, which form a perfect world through various changes. I'm afraid it's not all human power that can do it
his philosophical proposition of "form is ever-changing but not limited" can now be understood as the diversity of the material world formed by finite element atoms in their ever-changing and infinite combination. The modern theory of material structure also proves that the view of matter is correct, because everything in the universe is made up of atoms
In his critical biography of song Yingxing, pan Jixing believes that when developing the natural philosophy of the generation and evolution of all things, song Yingxing closely combines his philosophy with science and technology, and supports and explains his philosophical thought with the examples of 30 technological processes described in Tiangong Kaiwu. This is not only impossible for other philosophers in Chinese history, but also for great scientists like Li Shizhenwhen expounding the transition from the most fundamental vitality to the inorganic world and the nature of life, he provides us with a picture of the generation and evolution of all things, and the basic transition level is: vitality → water and fire → earth → metal and wood → non living things → plants (living things) → animals (advanced living things). The most critical step is the transformation from abiotic to biological
(2) hydrogen sulfide (H2S): it is a colorless, slightly sweet, rotten egg flavor gas, which is easily soluble in water and can burn and explode in case of fire; Hydrogen sulfide is extremely toxic. It can poison the blood and strongly stimulate the mucous membrane of eyes and respiratory system The maximum allowable concentration is 0.00066%
(3) sulfur dioxide (SO2): it is a colorless gas with strong sulfur and acid smell. It can proce sulfuric acid when contacting with the moist epidermis of the respiratory trachea, stimulate and paralyze the cell tissue of the upper respiratory trachea, and inflame the lung and bronchus The maximum allowable concentration is 0.0005%
(4) nitrogen dioxide (NO2): reddish brown, soluble in water, is a highly toxic gas, which has a strong irritating effect on human eyes and respiratory organs The maximum allowable concentration is 0.00025%< (5) methane (CH4): methane is a common harmful gas in coal mines, which is colorless, tasteless, odorless and nontoxic; It is lighter than air and often gathers above the roadway. When its content in the air is high, it can rece the content of low oxygen and cause suffocation; It is explosive and its explosive concentration is generally 5% - 16% The allowable concentration of biogas in the regulation is different from each point underground, which will be detailed later
(6) ammonia (NH4): it is a colorless gas with strong odor like ammonia water; It is extremely toxic, can stimulate the skin and upper respiratory tract, and can seriously damage the eyes The maximum allowable concentration is 0.004%
(7) carbon dioxide (CO2): it is a colorless, slightly toxic and slightly sour gas. It does not support combustion and does not maintain long-term breathing. It is heavier than air and often gathers at the bottom of the roadway and the end of the downhill with poor ventilation; It is soluble in water and forms carbonic acid, which can stimulate the mucous membrane of eyes, nose and throat According to the regulation, the maximum allowable concentration is 0.5%
bamboo is used to remove these toxic gases, and it can increase the oxygen in the roadway to prevent workers from poisoning! And gas explosion< br />
the whole book of agricultural administration is about agriculture, which has nothing to do with the advanced mining and smelting technology of Ming Dynasty
Tiangong Kaiwu was published in Ming Dynasty, which is related to mining
therefore, it is natural to open things
if it can help you, please click five stars to adopt it. I wish you a happy game! Remember to adopt it~
if you want to get ore from other levels, you need to join the gang that occupies the Fenghuangshan Mine cave. Then the gang members can dig in their own mine cave, and the gang can organize the transportation of ore
if you are satisfied with this answer, please also choose "adopt as the answer". A little help will encourage you to continue to answer the questions of other QQ netizens, and you can give other QQ netizens the correct understanding when searching, thank you!
main source: .
it's very difficult to earn copper money at the low level. If the number of levels is high, the explosive equipment will be replaced