When it comes to heating or cooling a car themselves, they usually fit a blow heater or fan into a window, seal it up, and just pump hot or cool air from a stationary or big wheeled heater.
Conclusion At the end of the day, if you live in a climate where you really
need to quickly heat or cool your vehicle, it`s
worth the expense of an inline heater , and
the labor to have a professional install it.
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1. Resource utilization is not high, resulting in waste of resources and environmental pollution
In the modern salt lake mirabilite deposit, K, Br, I, Mg, etc. are often associated. At present, most of the mines only focus on mining, extract one or two of the main minerals, and the remaining beneficial components are discarded as waste, which not only wastes valuable Mineral resources and pollution to the environment.
Since ancient Glauberite deposits buried deep, mining difficult, complicated manufacturing processes, using underground mining mines, mine tailings and tanning discharge and environmental pollution; mine using solution mining chamber, the filter cake NOx emissions while fine processing The amount is reduced by more than 60%, but there is still the problem of utilization of glauberite tailings and environmental pollution.
2. Processing technology and equipment are backward and production conditions are poor
After 1985, the industrial anhydrous sodium sulfate production bases such as Shanxi Yuncheng, Sichuan Chengdu, Inner Mongolia Baotou, Xinjiang Hami, etc. used vacuum evaporation equipment (four-effect or five-effect), and the production management and product quality were good. However, in recent years, township enterprises and individual enterprises have developed rapidly. They still use industrial boiling anhydrous sodium sulfate to produce industrial anhydrous sodium sulfate. This method has high energy consumption, poor product quality, small output, high labor intensity and serious environmental pollution. .
In addition, in the process of preparing industrial anhydrous sodium sulfate by using the glauberite mineral, since only the sodium sulfate part in the ore is utilized, the calcium sulfate component is discarded as waste residue, which also causes pollution to the environment.
At present, the production process and equipment of most sodium sulfide producers in China are relatively backward. First, the utilization rate of sodium sulfate is only 59% to 80%, and the pollution is serious. Second, the production of sodium sulfide current process, to the preparation of coal powder, calcining, leaching and evaporation step to discharge dust, sulfur dioxide, hydrogen sulfide and other pollutants emitted into the air, causing extremely serious pollution of the production and living environment, Even killing future generations. Many state-owned large and medium-sized enterprises have adopted a variety of measures, such as wet removal of alkali mist and dry method, wet method and soot removal, which have played a certain role, but few environmental protection requirements have been met. Collective and individual sodium sulfide plants have more serious pollution and extremely poor working conditions.
3. The awareness of environmental protection in enterprises is weak, and the three wastes are under arrears.
Glauber's salt production plant (mine) enterprises, environmental protection awareness is generally weak, driven by interests, focus on production, neglect the three wastes governance. Plus benefits manufacturers generally poor, do not have enough funds to solve the problem of waste management. Some townships and individual enterprises are quicker and more profitable, and their worries are serious.
The management of three wastes in China's thenardite production enterprises is urgent. The focus should be placed on the following aspects:
1) Comprehensive utilization of resources, development of non-waste production processes, comprehensive utilization of mineral raw material resources, not only can improve economic efficiency, but also reduce pollution and achieve the purpose of no waste production.
2) Emphasis on technology development and promotion and application. In the thenardite production and processing enterprises to promote mature technology, do a good job in technology development, improve product quality, improve working conditions, create a clean and clean production and living environment.
3) Optimize product application channels and adopt new technologies for recycling resources. Recycling low-end products should be made as high-value products as possible. The use of new technologies for recycling resources will turn waste into treasure and improve utilization.
As far as the current situation is concerned, China's thenardite production has not kept up with the development of production in terms of environmental protection, and the three wastes have a lot of debts. Mainly manifested in: