In fact, in recent years, a company that is subject to bottlenecks in transportation is far from being a company in the power industry. Almost all chemical companies have felt the heavy burden of transportation. The chemical industry is known for its "import and export of goods". "The lack of transport capacity" will naturally seriously affect the normal production and sales of chemical companies.
Many investigations show that during the Spring Festival each year, more than 30% of chemical companies, especially coal chemical companies and chlor-alkali enterprises, will be forced to cut production or even stop production due to the transportation problems that lead to raw and auxiliary materials needed for production. The CEOs of the company will mainly focus on wagon running and transportation. Especially this year, a considerable number of chemical companies have been plagued by transportation problems: the peak of the spring of the year together with the transportation caused by snow and snow disasters were severely impeded, and the raw materials of chemical companies frequently slammed; in mid-March, all items must be required for spring plowing production. Fertilizers, pesticides, agricultural machinery and other agricultural products made way; later, in order to keep food prices from rising too fast, the North Grain and the South have become the railway sector's first choice; this work has not yet ended, Wenchuan has another major earthquake, and the Baocheng Railway has been cut off. A large number of roads in Shaanxi, Gansu, Ningxia, Anhui, Jiangxi, and Chongqing were damaged and transportation was hindered.
“Since the production of industrial salt, blue carbon and other raw materials for production, and product PVC are not key protection materials, it is difficult to get the wagon now, two-thirds of the goods have to be transported by road. Many hidden dangers make the company face unprecedented pressures for transportation and safety." Director Song Xiang of Xi'an Xihua Thermoelectric Chemical Co., Ltd. reluctantly told reporters.
At the beginning of May, at the National Nitrogen Fertilizer Industry Situation Meeting held in Xi’an, all the CEOs of the participating companies expressed great concern and concern about the transportation issue this year. After the Wenchuan Earthquake, a considerable number of companies still did not resume production because raw materials could not be shipped.
Long-term increase in transportation pressure Analysis of the industry, on the whole, the transportation pressure faced by the chemical industry will be sustained and increased.
The reasons are as follows. First, the chemical industry has experienced rapid development in recent years. The annual average growth rates of chlor-alkali, chemical fertilizers, ethylene, alcohol ethers, synthetic rubber, plastic products, and other organic and inorganic chemicals are all above 10%, and some even exceed 20 percent. %, a surge in demand for transportation. Second, the variety and quantity of hazardous chemicals are increasing. At present, the number of hazardous chemicals in China has reached more than 4,000, and the annual road transport volume exceeds 200 million tons. Dangerous chemicals are flammable, explosive, corrosive, toxic, harmful, and other characteristics, so that they have high requirements for transport conditions, generally only independent or isolated transport, a considerable number of road sections or areas become dangerous goods "embargo This led to the high return rate of dangerous goods transport vehicles and low transportation efficiency, and occupied valuable transport resources. Third, the rapid development of the heavy chemical industry has exacerbated transportation tensions. The continuous and significant increase in international oil prices and the status quo of China's lean oil, low gas, and rich coal have promoted the rapid development of China's coal chemical industry. Since most of the coal chemical bases are located in coal-rich middle and western provinces, coal and chemical products such as methanol, dimethyl ether and other coal chemical products are far away from the eastern and southern regions of China, causing a large number of coal chemical products, especially Hazardous chemicals such as alcohol ethers must be transported long distances. Alcohol ether, polyvinyl chloride, triacid, and alkali and other materials are not “guaranteed materialsâ€. Under the current situation of tight railway transportation capacity, it is difficult to smoothly transit the railway; however, highway transportation has a small volume of traffic, many hidden dangers, and high costs. It is also difficult to meet the demand for large-tonnage transportation of coal chemical products.
The logistics plan has become increasingly urgent. “It is from this perspective that Shaanxi Province has adjusted the plan for the “Eleventh Five-Year†methanol production capacity to 20 million tons to 6 million to 10 million tons, while stepping up the 'ten railway projects' and the The construction of the main skeletons of the three-horizontal, two-ring, and 'm'-shaped expressways will be implemented to reduce transportation pressure and risks,†Hu Haifeng, deputy director of the Shaanxi Petrochemical Industry Office, told reporters.
Inner Mongolia Autonomous Region also began to plan transportation problems. In April this year, the government of the Autonomous Region took the lead in planning the long-distance pipelines for alcohol ethers in the country. The intention was to transport the products of several million-ton alcohol ether companies in the region to the whole country by following the principle of economical rationality through pipeline transportation or automobile transportation. The largest alcohol ether production base - the location of Zhongtian Hechuang Energy Co., Ltd. with an annual output of 4.2 million tons of methanol and 3 million tons of dimethyl ether, and sent to Jingtang Port through the long-distance pipeline from Ordos to Jingtang Port laid by the company The pier is then transported by waterways along the Yangtze River.
This year's rain and snow disaster has made the Yichang Municipal Government feel the urgency of building an efficient logistics center. At present, the city government is establishing Yichang logistics center together with riverside terminal enterprises and large petrochemical enterprises including Yihua Group to solve the bottleneck of transportation.
At the same time, chemical companies are also making long-term plans for their transportation. While planning its 3 million-ton methanol project in southwestern Guizhou, Yihua Group will simultaneously plan and construct the alcohol ether pipeline that leads southwestern Yunnan to the South China; Zhao Haiyin, the head of the transportation department of Hebei Kaiyue Chemical Group, revealed to reporters that Kaiyue Group has The intention was to lay out the 70-kilometer alcohol ether pipeline from Wen'an County to Jingtang Port; while many companies such as Sunpower Sunlight Chemicals Co., Ltd. and Suihua Group have adjusted their marketing strategies to expand the market in and around the province. It may reduce the long-distance transportation of raw materials and products and ease the transportation pressure.
Hu Haifeng believes that because the contradiction between transportation supply and demand is difficult to eliminate in the short term, all localities must fully consider the issue of transportation assurance while planning large-scale coal chemical and petrochemical projects. For the already established coal chemical and petrochemical parks, local governments should work together with enterprises to jointly plan logistics centers and promote the smooth flow of logistics. Otherwise, the bottleneck of transportation will not only become a weakness that restricts the chemical industry, but will also become a weakness that restricts local economic development.
According to the different flow directions of heating steam and feed liquid, the operation flow of continuous evaporation Crystallizer can be divided into countercurrent method, downstream method, cross-flow method and advection method. In addition to these four processes, other processes may be arranged according to the production situation. Sometimes in most of the evaporation, for example, every effect is not to create a effect after the secondary steam are introduced and used as heating steam, but will be part of the secondary steam used for preheating material liquid into the first effect of the derivation, or other has nothing to do with the evaporation of heating process, the rest is still after entering a valid heating steam, is referred to as the additional steam that part of the steam.
MVR Continuous Evaporative Crystallizer
MVR Continuous Evaporative Crystallizer , also known as multi-effect evaporator, is suitable for sodium chloride, phenylpropanium acid, sodium sulfate, ammonium chloride, ammonium glycolic acid; barium chloride ,zinc sulfate, calcium chloride, ammonium, sodium hydroxide and other materials evaporation and crystallization.
Product features
1. this equipment is mainly for targeted materials evaporation concentrate, And turn final product into a certain size of solid crystal.
2. When liquid material pass through circulation pump it heats up and direct into evaporation separator, it has a better result in vapor liquid separation.
3. Compact structure uses less area occupancy, stable performance etc
4. Easy to operate, easy maintenance.
5. It has sufficient mechanical strength and less metal consumption. According to characteristics of material and evaporation capacity, it can be designed in a single-effect or multi-effect unit. This device is mainly applicable for liquid that precipitated crystals. Mainly used in chemical industry, Metal minings melting, Steel mills waste washing, Power plant`s wet desulfurization waste dispose and so on. In view of characteristics and complexity of various solutions, our company will make specific technical solutions for customers to choose.
Energy Saving
The purpose of multi-effect evaporation is to use secondary steam in evaporation process to save steam consumption to improve economic efficiency. The following chart is the amount of heating steam consumed by per kilogram of water, in which the actual consumption includes various heat losses during evaporation, its value changes slightly with different evaporator and evaporation process.
Energy Saving Crystallization Evaporator,Stable Continuous Evaporative Crystallizer,Mechanical Multi-Effect Crystallization Evaporator,Stainless Steel Evaporative Crystallizer
Yangzhou Tongyang Chemical Equipment Co., Ltd. , https://www.tongyangchemic.com