제 화 열적 폭주 thermal overrun chain reaction
What is the reaction of the aluminum thermal reaction? Is it an exhalation reaction?
Aluminiothermic reaction was a kind of oxide-reduction reaction between aluminum and metal or non-metal compounds at high temperatures. Aluminiothermic reaction was an exhaling reaction, and its heat release was very large, usually enough to heat the product above the melting point, and the reaction could generally occur locally and be self-sustaining. This characteristic also reflected the energy-saving characteristics of the reaction.
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2026-07-02 12:12
The thermal reaction temperature of iron
The temperature of iron reaching the red hot state was about 500 - 1200 ° C. As the temperature increased, it would appear dark red, bright red, orange and other colors. The melting point of iron was 1538 ° C. If the temperature continued to rise to 1700 ° C, it would reach the incandescent state. In addition, in the thermit reaction, the aluminum powder and iron dioxide powder were mixed in a certain proportion and then ignited to produce a high temperature to melt the iron. The reaction temperature could reach 3000 ° C, and the temperature of the molten iron could reach more than 2500 ° C. Different types of iron have different melting temperatures. For example, tinplate (malleable iron) has a melting temperature of 1320 - 1350°C, gray cast iron has a melting temperature of 1320 - 1350°C, and spherical cast iron has a melting temperature of 1340 - 1400°C. The melting temperature of steel varies according to its carbon content. The melting temperature of low carbon steel is 1420 - 1450°C, medium carbon steel is 1450 - 1470°C, high carbon steel is 1470 - 1500°C, and alloy steel is 1450 - 1570°C.
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2026-09-18 17:05
The lid of the reaction kettle loosened after the thermal reaction
The loosening of the cover of the reaction kettle after the thermal reaction may be due to the following reasons:
1. It was caused by not tightening it. If it could be dragged, it meant that the upper steel sheet of the inner liner was not placed properly (after the upper steel sheet was placed properly, the vibration force generated by the screw thread gap between the lid and the kettle body caused the upper steel sheet to run out). If it could not be dragged, it meant that the upper steel sheet had been placed properly.
2. The inner liner contracted faster than the steel. After the thermal reaction kettle cooled down, the inner liner contracted faster, while the steel contracted slower. Therefore, the kettle cover would be loose and could still be twisted.
3. If the pressure in the reaction kettle was not high enough, the reaction conditions would be destroyed, and the lid might also be loosened.
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2026-09-23 09:08
Positive reaction rate and time image of the thermal reaction
For the positive reaction rate and time diagram (V-t diagram) of the thermal reaction, there were the following characteristics:
- If the temperature was changed, the reaction would absorb heat. According to Le Chatelier's principle, the equilibrium would move forward. The image showed that as time passed, the positive reaction rate increased at the moment of heating up (because the temperature increased, the molecular motion increased, the effective collision probability increased, and the reaction rate increased). Then, as the reaction progressed, the positive reaction rate gradually decreased until it reached a new equilibrium state, and the positive reaction rate under the new equilibrium was greater than before the temperature increased.
- If it involved a change in pressure, for the heat absorption reaction with a change in the number of gas molecules before and after the reaction, if the pressure was increased, the reaction would move in the direction of the decrease in the number of gas molecules (if the positive reaction was the direction of the decrease in the number of gas molecules), the positive reaction rate would instantly increase, and then gradually decrease to a new equilibrium as the reaction progressed. The positive reaction rate under the new equilibrium was greater than that before the pressure was increased. If the pressure was reduced, the positive reaction rate would instantly decrease, and then gradually change to a new equilibrium as the reaction progressed.
- If a catalyst was added, the positive reaction rate would instantly increase, and the time to reach equilibrium would be shortened, but the equilibrium would not move. In other words, the final positive reaction rate would stabilize at the same level as the original equilibrium (the catalyst would change the positive and reverse reaction rates to the same extent).
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2026-09-19 06:53
What are the factors that affect the thermal reaction?
The main factors that affected the thermal reaction were energy and the degree of chaos in the system. From a specific reaction point of view, temperature, pressure, the nature of the raw materials, the gaseous substance coefficient of the positive reaction, the heat absorption or heat release nature of the reaction (the change of the heat), the change of the heat, the ratio of nitrogen to hydrogen, the noble gas, and so on all had an impact on the thermal reaction.
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2026-09-20 17:30
Dismountable reaction kettle thermal jacket
The following features of the thermal jacket are shown:
1. ** Construction and production **: Usually made of high and low temperature resistant, fire-resistant and thermal insulation materials, including the inner lining, the middle insulation layer, and the outer protective layer. It was carefully designed and made according to the specific shape of the reactor, the environment, the three-dimensional drawings of the reactor, and the installation of the equipment on site.
2. ** Performance advantage **
- ** Heat insulation **: It is a reliable and effective heat insulation material. It can achieve greater heat insulation performance with a lower thickness. For example, it can meet the requirements of the temperature below 50 ° C (not higher than the ambient temperature by 15 ° C) after insulation. The thermal conductivity is 0.035W/m.K at room temperature. It effectively prevents heat from escaping from the inside of the reactor or external heat from entering the inside of the reactor to maintain the internal temperature of the reactor.
- ** Adaptability and adaptation **: It fits the equipment better and has good flexibility. It can adapt to the heat insulation requirements of different reactors. It can be customized according to the size of the equipment and has a good fit with the equipment.
- ** Durability **: High temperature resistance, anti-corrosion, material can withstand high tension, such as 3500N/50mm tension, waterproof, anti-oil, anti-corrosion and weathering, strong weather resistance (waterproof 3ds, fire resistance GB8624 -2012: B1 and anti-corrosion H2SO4) and other characteristics.
- ** Others **: The thermal insulation cover is light, which can reduce the overall weight of the reactor. It also has a good sound-absorbing effect. It has a beautiful appearance and is environmental friendly.
3. ** Ease of Use **
- ** Easy to disassemble **: It is designed to be easy to install and disassemble (such as the Velcro and drawstring design). It can be reused. This is very convenient for equipment maintenance or operations such as removing the thermal suit to cool down.
4. ** Meaning of application **: The heat preservation of the reactor is very important. The reaction of the materials inside requires a certain temperature support. Heat is the core problem of the reactor. The disassembled thermal suit helped to prevent the heat source from affecting the quality of the product. It not only improved the reaction efficiency and effectively reduced the heat loss, but also fully utilized the waste heat or the heat generated after the reaction to save production costs. It was of great significance in the thermal insulation of chemical vessels such as large reactors and storage tanks. If the thermal insulation was not handled properly, the physical properties in the reactor would change greatly, affecting normal production.
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2026-09-10 11:52
What are the factors that affect the thermal reaction?
The factors that affect the thermal reaction include:
1. Energy factors, such as the change in the reaction process, the change in the
2. The chaos factor of the system was known as entropies. Entropies could describe the degree of chaos or disorder of the system. The change in the entropies of a reaction could help predict the trend and spontaneous nature of the reaction.
3. For some specific reactions (such as the nitrogen and hydrogen reaction), temperature, pressure, the ratio of nitrogen and hydrogen, and the noble gas were influencing factors.
4. During the curing process, factors such as temperature, pressure, and the nature of the raw materials would affect the thermal process.
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2026-09-08 12:53
Lyric: Chain Reaction
The following is an analysis of some songs that contain the lyrics of "chain reaction":
In the lyrics of some popular songs," chain reaction " was often used to describe an emotion or reaction that was difficult to suppress, like a chain trigger. For example, the lyrics described that when one met the person they liked, from the various sensory organs in the body to the emotions in the heart, it was as if a chain reaction was triggered and could not be stopped. For example," When the reason met you, my heart began to refuse to be quiet. When the reason met you, my eyes, nose, throat, and skin reacted. It was difficult to suppress it, difficult to suppress it. Chain reaction ". The " chain reaction " here vividly expressed the sudden and uncontrollable outburst of emotions, like a domino effect. One reaction triggered a series of emotional and physiological reactions.
In addition, from the overall context of the lyrics," chain reaction " could also symbolize a figurative description of unexpected encounters or emotional impulses in life, emphasizing the continuity and unpredictability of events or emotional development. For example," Cause one thing leads to another,Leads to another, leads to another.Like a flashback, sneak attack, chain reaction ", indicating that one thing leads to another, just like a chain reaction.
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2026-07-24 14:07
The thermal stability of the reaction between NaHCO3 and NaHSO4
When heated to about 315 ° C, the bisulfuric acid begins to decompose, releasing sulfur dioxide and hydrogen dioxide. When heated, it easily decomposed to produce soda, water, and carbon dioxide. It could be seen that the thermal stability of the bisulfuric acid was relatively good, and the thermal stability of the hydrogen hydrogen carbon was relatively poor.
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2026-09-13 21:17
Hohhot.com, the heating method of the thermal reaction kettle
The heating forms of the thermal reaction kettle were jacket type and inner coil type. In addition, the common heating method of the reaction kettle was electric heating.(For example, by installing electric heating elements such as resistance wires, silicon carbon rods, and PAC ceramic inside or outside the reactor, the current can be used to generate heat through the resistance to heat the reactor body or heat transfer medium), thermal oil circulation heating, hot water heating, steam heating, etc. However, the document did not indicate whether these heating methods were specifically applicable to the thermal reactor in Hohhot. Generally speaking, the thermal reactor in Hohhot. may also adopt the above heating methods.
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2026-07-04 16:54
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