Graduate qualifying work Theme: Selection and calculating of zinc sulfate production technology

The procedure for stopping the furnace:

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  The procedure for stopping the furnace:
  
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  - the flow of solution to the nozzles and gas to the burner stops;
  
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  - nozzles are taken out of the furnace;
  
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  - air supply to the furnace continues until the layer is completely unloaded through the threshold;
  
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  - the supercharger and the exhaust fan turn off.
  

Technological computation.

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  Colculation of zinc smelting equipment to obtain zinc sulphate.
  
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  Melting of zinc in the equipment is carried out in the following equation.
  
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  Melting of zinc in the equipment is carried out in the following equation ∑.
  
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  Zn+0.5O2+H2SO4→ ZnSO4·5H2O
  
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  Output data
  
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  Sanded Zinc kg/sum ………… ……....7564
  
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  The amount of sanded water ……… …….5
  
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  Compounds that come with sands in a mechanical oven ……30
  
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  The main compositions of mixture that comes in the mixture is as follows
  
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  ZnSO4·5H2O ………..12862
  
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  H2SO4 ……………..2365
  
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  H2O ……………38839
  
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Ecology and labor protection.

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  The rapid development of electronic technology in the human world has led to great changes in human life.There was food, clothing, home heating, a variety of vehicles, a change in the environment.The release of carbon monoxide, sulfur oxides, nitrogen oxides, fluorine industrial dust and moisture into the atmosphere from the development of especially heavy industry - mining, metallurgy, chemical light industry - causes environmental problems.For example, 70% of atmospheric transport, 250 million tons of dust, 200 million tons of carbon monoxide, 150 million tons of sulfur oxides per year. Annually, 25% of industrial waste is iron, 80-90% of mercury and lead.
  
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  metal compounds are absorbed by plants and pose a threat to living organisms. Including the effects of the noise around us on the human body causes 85-90 getsbl high neurological diseases. Gaseous, liquid and solid phase wastes from the chemical industry should be neutralized.
  
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  Methods of cleaning the environment.