The raw lacquer cut from the lacquer tree is almost not afraid of any corrosion, whether it is water, strong acid, or strong alkali. Lingao does not produce lacquer, but there are many in Guangdong. The Works and Energy Commission imported some, and Xu Yingjie adjusted a large water tank to prepare it.
After it became thick and suitable, he soaked the straw rope in it to replace the asbestos rope and water glass. However, he also paid a price - even though he took full body protection, he was still bitten by "paint" on his hand. His fingers were swollen and he couldn't help.
I rested for several days without a break.
Ji Sidei randomly picked up a jar and tried the threaded lid: "This jar is good. We need to maintain long-term production. In the future, there will be a huge demand for sulfuric acid, nitric acid, hydrochloric acid... chemicals." Ji Sidei said.
, "I also have an order for chemical equipment. You should quickly organize people to make it."
"Do you still have to do it?" Xiao Bailang complained, "I haven't had a good night's sleep in three or four days. There are only a dozen workers in the ceramics factory. This is too much work!" He took the list and listed it.
There are more than thirty water tanks of different sizes, as well as some other ceramics.
"Make such a water tank! Do you want to make pickles?"
"It has something to do with salt," Ji Situi said, "it's all used in engineering, so hurry up."
"Then please give me some overtime pay. The ceramic craftsmen here have been busy day and night recently."
"You ask Wu De for overtime pay. Where can I get the circulation coupons?" Ji Situi was not interested in the welfare of the indigenous people. "Don't they burn kilns in Fujian day and night? The kiln owner will give them overtime pay?"
"You capitalist is too evil..."
Ji Sidei interrupted his complaint: "I need this urgently, please hurry up."
After the cans were brought back, Ji Sidui built a straw shed next to the sulfuric acid plant and slept for a while. At night, after the 12 hours were up, he asked people to dig out all the firewood with iron drills, and immediately organized people to help.
A layer of gravel about the same size as ore is put into the furnace, and then firewood is put into the four furnaces to light the fire.
Seeing that the fire was getting bigger, Ji Sidui asked the workers to add the best Hongji anthracite. The fire suddenly became fierce and the entire sulfuric acid plant burst into flames.
"Okay, except for those who are watching the stove and lighting the fire, everyone else is going to have a rest. We'll start working again the day after tomorrow!"
Seeing that he didn't have to worry about it now, Ji Sixui rushed to the next construction site - the caustic soda workshop.
The ammonia synthesis and combined alkali production plant can only produce soda ash. Caustic soda, which is widely used in industry, is relatively easy to prepare, and the raw material is simple-salt electrolysis. Not only can caustic soda be obtained, but many useful by-products can also be produced, including another
Important chemical raw material: hydrochloric acid. It eliminates the need to install a special hydrochloric acid production line. This is the benefit of the chemical joint manufacturing method.
Even the Ministry of Light Industry has been focusing on the issue of caustic soda - it is related to the two major products of the Ministry of Light Industry: white paper and soap. Ji Sixui simply took care of it together this time.
"If I can drive one sheep or two sheep, I can do more work." Ji Sidui thought about walking to the caustic soda workshop. A train delivering construction materials to the caustic soda plant happened to pass by. He hurriedly jogged a few steps and walked away.
He went up and sat down on a pile of reed mats.
"Who is it? You're trying to kill the train!" shouted a man wearing a safety helmet on the tractor in front.
"Are you considered a train?"
"It's not a train." As he spoke, the train arrived at the construction site of the caustic soda workshop, which was under construction.
Ji Sidui got off the car and saw that the man wearing a helmet turned out to be Bingfeng - it seemed that the caustic soda plant workshop must have a steel frame structure.
Sure enough, this caustic soda workshop is simple enough, but compared to the sulfuric acid workshop that is still exposed in the open air, it is still covered - the electrolysis workshop involves electrical issues and cannot be exposed to wind and rain. The entire building is made of brick columns.
The frame structure of wooden beams is open except for a few key parts with walls, which facilitates ventilation. The precious and fragile transformers have a separate transformer room with glass windows for easy observation.
The total area of the entire factory is about 500 square meters. The ground is paved with bricks. Chang Kaishen is taking Ling Tian and several indigenous apprentices to install a transformer: convert the alternating current sent from the Bopu Power Station into direct current so that it can be used
Come to electrolysis.
Ten electrolytic cells have been installed. Ji Situi originally considered purchasing ready-made ones, but the weight made him give up the idea. In the end, he only purchased and prepared the core components, which were purchased in another time and space. The tank bodies were manufactured locally.
Square troughs made of braided steel bars and cast with cement yellow sand. Each trough is 1.4 meters wide, 0.8 meters wide, and 0.4 meters high. The troughs are lined with ceramic tiles to avoid corrosion. The troughs are placed 0.1 meters away from the bottom of the troughs.
A piece of wire mesh is installed flatly. Each trough is also equipped with a wooden cover, which is coated with wood tar asphalt to prevent corrosion.
The heavy reinforced concrete electrolyzer is supported by a piece of hardwood board and elevated on two brick bottom brackets as an insulation measure.
Ji Situi checked the quality of each slot to see if there were any leaks or weak tiles. He found that linoleum coated with wood tar asphalt was laid in the middle of the bracket as an additional insulation measure. It is always right to be careful.
- 400 amps of current, this is no joke.
"Is this safe?" Ji Sidui looked at this makeshift look and felt really uneasy.
"It's generally safe, but I can't say it's absolutely safe." Ling Tian said, "You still have to be careful when using electricity. Pay attention to wearing labor protection supplies and do a good job in safety education."
"The pressure is so heavy." Ji Situi has foreseen that the future of the chemical plant will not be peaceful. "The local law will kill people."
He turned around again and saw that a chlorine absorption tower combined with water tanks had been set up outside the house. The chlorine gas produced during electrolysis reacted with the slaked lime in the tower, and bleaching powder was obtained. It is cheap, effective and can be widely used.
Disinfectants.
After returning from the caustic soda workshop, I rested for a while, and the hot furnace work was finally almost over. At this time, everyone who had something to do with the chemical industry came.
"We won't sleep for two or three days in a row." Ji Sidui said, and asked someone to drag out a few boxes from the shed. "These are protective clothing. We will give them to everyone first. Don't lose them! Now one mask, one
There’s nowhere to find a pair of glasses!”
Ji Si returned with a lot of various labor protection supplies used in the chemical industry - there would be no room to replenish these items for a while. He brought enough wearing parts to last ten years.
Everyone put on a full set of protective clothing, protective glasses and chemical masks. Then, under the command of Ji Sixui, work began.
Ji Situi first closed the chimney blocking plate, then pulled away the converter's extraction plate, and turned on the blower. He constantly measured the thermometers at each inlet. When the inlet temperature of the first converter reached 450C, Ji Situi
Si Tui asked someone to open the top cover of the converter and put in quartz sand and catalyst. Then he covered the top cover and applied acid-proof mud - water glass is no longer a rarity in the soda ash industry, and porcelain powder is even less so.
Therefore, Ji Situi had no intention of saving at all and sealed both top covers tightly without hesitation.
Seeing that he had sealed the top cover, Xu Yingjie and his men began to add crushed ore into the furnace. Each furnace was 20 kilograms. Then he closed the furnace door. At the same time, he added 98% of the crushed ore obtained from the Planning Commission warehouse to the absorption tower.
Concentrated sulfuric acid acts as a primer to start the acid cycle.
Ji Sidui tested the concentration of sulfur dioxide at the outlet of the first converter. It was close to 70% at this time. He knew that the sulfuric acid production had been basically successful. After the absorption tower started the acid cycle, 1.5 liters of acid was produced every ten seconds.
Shower. The temperature of the tower has risen to 60C, and he asked people to turn on the water cooling.
In this way, one furnace is fed with ore every hour, and the four furnaces are cyclically fed with materials and slag is discharged. The indigenous sulfuric acid plant is now in operation. As long as stable feeding and heating are maintained, a workshop of this size can operate for 345 days a year and produce 98% of the production.
of concentrated sulfuric acid
Ji Situi and others had no time to celebrate this great moment, but were busy explaining the key points of production to the indigenous workers while working - on-site observation was more intuitive than simply giving lectures in class and adapted to the cultural level of the indigenous workers.
Of course, once it is running, the furnace will not be shut down unless it is for maintenance or other urgent matters - after all, heating the furnace takes a long time and consumes a lot of fuel, which is not economical.
However, Ji Situi only has 20 tons of pyrite in total. If the production is at full speed, it will be consumed in less than a month. When the pyrite will be shipped again depends on how fast the shipbuilding speed is - but by this time
The sulfuric acid used in coal coking should have been mass-produced. The sulfuric acid production here will not be too important. Ji Situi is already considering that if the coal chemical plant has enough sulfuric acid, the equipment here can be used to produce ammonium sulfate from pyrite.
As fertilizer.
The first batch of 98% concentrated sulfuric acid was produced. They were carefully packed into custom-made jars and sealed. Then the outside of the lid was sealed with plaster of paris. A clay-fired raspberry was covered on top -
Used to protect against rain.
"Does this method work?" Xu Yingjie is used to seeing modern industrial packaging. Now at first glance, when he saw an earthen jar that looked like rice wine, he felt incredible and had a very unreliable feeling.
"Sulfuric acid has been produced for two hundred years. Don't worry, it was always packaged like this in the past," Ji Situi said.
After the cans are labeled with "98% concentrated sulfuric acid", the production date, and the production location, they are carefully packed into special wooden boxes made by the woodworking factory, one or two per box. The cans are wrapped with straw ropes in the box to act as shock absorbers.
It is used for buffering. Then it is loaded on the train and transported to the chemical dangerous goods warehouse.
After the initial victory in the sulfuric acid battle, Ji Sidui led the indigenous workers to teach and produce for more than ten days, until the indigenous workers basically mastered the production technology and procedures and memorized all safety production regulations.