the silver kettle

The reaction kettle was a type of pressure vessel used to complete the processes of sulfidification, nitration, dehydration, dehydration, condensation, and so on. Commonly seen were porcelain reaction kettles and stainless steel reaction kettles. The porcelain reactor was made of carbon steel. A layer of porcelain was burned on the surface of the contact material. The anti-corrosion ability of the porcelain layer was used to isolate the contact between the material and the carbon steel to protect the reactor body from corrosion. The temperature of the material could not exceed 200 degrees Celsius. If the temperature was too high, it would cause the glaze layer to melt. It was an open structure. The upper head and the kettle body were connected by a flange-like connection and filled with an anti-corrosion sealing mat. The pressure that could be maintained in the kettle did not exceed 4 kg. It is suitable for corrosive materials. The stainless steel reactor was made of stainless steel. According to the requirements of the material, it could be equipped with heating, cooling, high pressure, vacuum and other functions. The material temperature could reach 400 degrees Celsius, and the kettle could maintain a pressure of tens of kilograms or even hundreds of kilograms, but its corrosion resistance was worse than that of the porcelain reactor. However, the information provided by the storage tank did not include detailed information about the comparison of the reactor functions with the porcelain kettle and the stainless steel kettle. It was impossible to give detailed information under the same logic as the former two. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

As for the origin of the sunflower kettle, the reference only mentioned that HiFood's portable heating cup and electric water cup kettle was produced in Nanjing City, Jiangsu Province, China. There was no mention of the origin of other sunflower kettles. Therefore, he could only confirm that this particular sunflower kettle was produced in Nanjing City, Jiangsu Province, China. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The idioms related to "kettle fish" were "fish in the dust" and "fish in the curtain". "Dust-covered fish" referred to the accumulation of dust in the steamer and the fish in the pot, which described the poverty of the family and the lack of cooking for a long time. It also meant that the officials were honest and self-disciplined."Fish in the pot" meant that the situation was extremely unsafe. There was also the idiom "fish swimming in the cauldron", which meant that one was in danger and was about to die. The novel " Watching the Moon on Fish Island " is equally exciting. Everyone is welcome to click and read it!

The following are a few ancient cultural relics: 1. This is a pair of well-preserved bronze heavy ware from the late Western Zhou Dynasty. It is 48 cm high, 30 cm in diameter, and has a rounded square cross-section. The pot body has a flat mouth and a bulging belly, with a Tian-shaped edge and a smooth belly. On both sides of the neck, there are dragon-shaped beast head rings, and the neck is cast with a phoenix pattern. The lid of the pot was closed at the waist of the cover of the hand-catching device. There were S-shaped double dragon patterns on the top, and the periphery was surrounded by the pattern of no eyes stealing. There were eight lines and thirty-three words (including two heavy words) cast on the lid of the pot, which recorded that Jia Bo had cast a pair of copper pots for the eldest daughter who married into the world to worship the ancestors and pray for longevity. It was now stored in the China Character Museum. 2. ** Reverse flow pot (blue-glazed reverse flow pot with carved patterns)**: Yaozhou carved porcelain of the Song Dynasty. It had no lid and looked like it had no water injection port, but the actual water injection port was a small plum blossom shaped hole at the bottom of the pot. There were two tubes in the pot. Using the principle of "the liquid level of the connecting vessel is equal", the liquid could be injected from the bottom of the pot and poured out normally from the spout. It was created in the Tang Dynasty and was popular in the Song and Liao Dynasties. It was also popular in the Qing Dynasty. Because there was no lid that could be opened, the seal was tighter. The liquid was not easy to evaporate, and dust and insects could not fall in. 3. ** Silver Gilded Dancing Girl Lotus Petal Pattern Holding Pot **: Made with a silver body, the whole body is gilded. Extravagant mouth, neck bundle, oblique arc abdomen, trumpet type circle foot and circle plantar edge outward fold. On the shoulder, there is a stream and a handle. The stream is hexagonal, and the edge of the mouth is carved with a stream chisel. There was a cover, shaped like a tower, with a lotus flower in bud, and the cover was decorated with flower patterns. The neck was also decorated with flower patterns, and the gaps were filled with pearl patterns. The shoulder, body, and feet were all decorated with exquisite patterns. They were collected in the Wangcang County Cultural Relics Protection Management Office and were currently on display in the Guangyuan City Museum. 4. ** Ming Dynasty single glazed pear-style teapot **: The year is the middle of tomorrow morning, the origin is Jingdezhen, and it is currently circulating in the world. 5. The pottery pot of the Neoliths era had hidden air holes. When pouring water, the air in the pot was compressed at the bottom. When the water level rose to the height of the air holes, the compressed air pushed the water out of the pot mouth. The body of the pot was slightly inclined, the shape of the spout had been carefully calculated, and the material was made of a special clay formula, which not only ensured the strength of the pot body but also had good heat preservation performance. It was unearthed from the Neoliths ruins. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

Industrial reactors can be divided into three types according to their structural forms: open (open), closed (closed), and semi-open and semi-closed; according to the heat transfer method, they can be divided into external circulation type, internal circulation type, and direct flow type; according to the heating medium, they can be divided into water-cooled, oil-cooled, and air-cooled jacket heating types. The materials of the reactor were carbon steel, stainless steel, and so on. The process includes putting the materials into the stirring tank for heating and stirring. After reaching the set temperature, close the feeding valve and then open the discharge valve. The materials transfer heat to the cooling tank through the heat exchange and then enter the splitter. The magnetic stirring rod in the splitter is used to clarify the liquid phase. After the liquid phase is filtered, it enters the measuring tank and then is recycled through the return pipe. The concentrated solid particles are processed. When cleaning, open the discharge valve and wash with a high-pressure pump. After checking that there is no problem, it can be put into use. If you need more information about industrial reactors, you can further consult the relevant information. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The features of a cartoon kettle can vary. It could have a big, smiling face on the side, or maybe it's in the shape of an animal. Sometimes, they have special textures or finishes to give them a more cartoonish look.

The Phoenix Teapot was a ceramic wine set with a phoenix as the shape and a peony as the decoration. When the wine was poured out of the pot, it sounded like the cry of a phoenix, hence the name. Legend has it that during the Tang Dynasty, Wu Zetian dreamed that a phoenix was playing in the peony bushes in the clouds. Later, he ordered Yaozhou ceramic craftsmen to make a phoenix playing peony pot. Wu Zetian held the pot and drank wine every day, listening to the phoenix cry to worship the prosperity of the country and peace of the people. In modern times, there were many types of Phoenix Teapot made of purple sand. Some of the Phoenix Teapot were made of finely polished purple clay. They were small and exquisite, and they had their own filter holes. When the water came out, it would cry out like a phoenix, which could bring the pleasure of elegant tea tasting. There were also purple ceramic Phoenix Teapot, which had the sound of gold and stone when it came out of the water. It was crisp and pleasant to the ear. When the water was cut off, it was comfortable to hold, and the bottom was flat and smooth. There were even extra-large purple clay Phoenix Teapot that changed color when it was heated. There were many sizes, packaging, and matching combinations to choose from. In addition, some of the representative works of purple sand also included the Phoenix Teapot. The novel "Listening to the Rain in Green Bamboo and Watching the Egrets" is equally wonderful. Everyone is welcome to click and read it!

The feeding work of the reactor has the following points: * * 1. Solid Material Charging ** 1. * * Material Pretreatment ** - For block-like solid materials, they needed to be processed into small pieces before being thrown into the reaction kettle. This would help the materials mix better with the liquid in the reaction kettle and improve the reaction efficiency. 2. * * Stirrer related operations ** - Before starting the stirring, first use your hand to rotate the stirring device to ensure that it does not get stuck or collide with easily damaged parts such as the thermometer tube. Then, press the electric switch to activate it. When the agitators can operate normally, then officially start the agitation operation. It is strictly forbidden to start it by force, so as to prevent solid materials from being stuck or colliding with the thermometer tube, causing equipment damage or test failure. 3. * * To prevent damage to the pot wall and falling into hard objects ** - When adding solid materials, be careful to avoid damaging the pot wall. If there is a dangerous medium in the reaction kettle, it is strictly forbidden for metal or hard objects to fall into the pot. * * 2. Liquid Material Charging ** 1. * * Vacuum pumping condition ** - If the liquid material is put in by vacuum pumping, the vacuum valve should be delayed to prevent flushing. Before opening the vacuum valve, he had to first ensure that the pressure in the reaction kettle was stable, and then gradually open the valve to allow the liquid material to slowly enter the reaction kettle. * * 3. Inspection before feeding ** 1. * * Material Inspection ** - Before feeding the materials into the reactor, the materials must be subjected to "self-inspection, re-inspection, and special inspection". Only when the "three inspections" are consistent can the materials be fed into the reactor. * * IV. Other precautions during feeding ** 1. * * According to the process operation procedure ** - In the process of adding materials, the time, speed, type, number, temperature rise, temperature drop, and heat preservation must be carried out in accordance with the process operation procedures to ensure the accuracy and reliability of the experimental results. 2. * * Surveillance during closed reaction ** - During the closed reaction, one needed to constantly observe the pressure, temperature, and other parameters inside and outside the kettle. If abnormal situations are discovered, measures should be taken in time to prevent safety accidents. For example, if the pressure was too high or the temperature was too high, it might cause the reactor to rupture or cause other safety accidents. 3. * * Equipment Operation Check ** - After the power is connected, the motor should drive the stirring operation, and check whether there is any state change phenomenon, sound, etc. in the transmission parts such as the decelerator and stirring to ensure the normal operation of the equipment, and find and deal with potential problems in time. If any abnormal phenomenon or sound is found, it should be immediately shut down for inspection to prevent equipment damage or affect the experiment results. 4. * * Personnel and product safety ** - Pay attention to personal safety and product safety at all times when feeding materials into the kettle. 5. * * Record and clean up ** - After feeding the materials, they had to re-check and sign the "Material List" for confirmation, and then clean up the garbage on the spot in time. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>