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Appendix A: Metals Industry Survey Form

Metallurgical Industry Survey - air emissions study

Company name: .....................................................

Contact numbers: .....................................................

Contact person: .....................................................

Email: .....................................................

1. Melting methods (please copy the form and complete separately for each individual process on-site).

   

Production quantity (range)

If unable to specify precisely, please indicate general furnace capacities as follows:

"Small" - &#8804 1,000 kg/day

"Small-medium" - 1,000 to 5,000 kg/day

"Medium" - 5,000 to 20,000 kg/day

"Large" - >20,000 kg/day

tick

daily (kg)

annual (t)

electric induction

     

arc furnace

     

resistance furnace

     

cupola

     

rotary

     

tilting rotary

     

reverbatory

     

oil/gas fired crucible

     

other (specify)

     

2a. Ferrous metals cast

 

tick

daily (kg)

annual (t)

Specify metal treatment/flux used, e.g. magnesium,O2, lancing, lime, fluorspar, other

Irons

       

Steels

       

2b. Non-ferrous metals cast

 

tick

daily (kg)

annual (t)

Specify metal treatment/flux used, e.g. NaCl, chlorine, nitrogen, other additives

Aluminium

       

Copper-based

       

Zinc

       

Lead

       

Other (specify)

       

3. Is the operation batch or continuous?

 

tick

Batch

 

Semi-continuous

 

Continuous

 

Approximate time for a batch/melt cycle _______________ hours

Size of batch/melt cycle _____________ kg (metals cast)

4. What air pollution control equipment is in place on the furnace?

 

tick

If associated with more than one process or furnace specify

Water scrubber

   

Bag filter

   

Cyclone

   

Afterburner

   

None

   

Other (specify)

   
..................    

Is lime added to the bag filter? Yes/No

5. Heat recovery or gas quenching on fume extraction? Yes / No

6. Has any emission testing been carried out on the furnace air emissions? Yes / No

7. Any sample ports in main discharge vent? Yes / No

Reasonable access? Yes / No

8. (Optional) If testing has been carried out, what contaminants have been tested? (e.g. particulate matter, metals, dioxins)

.............................................................................

Would you make the data available to the study? Yes / No
(Note confidentiality of your site could be agreed)

9. Condition of input materials used

tick

Metal input quality

 

clean - internally generated returns or ingots from elsewhere

 

contaminated with cutting oil (specify if type known) ______________________

 

contaminated with paint

 

contaminated with plastics

 

mixed

 

other (specify) _______________________

10. Is pretreatment or precleaning of scrap used? (Specify)

11. Method of ventilation from furnaces or melters

Is furnace hooded and directly ventilated? Yes / No

Estimated potential fume capture efficiency over the furnace

tick

 
 

100%

 

75%

 

50%

 

<50%

12. What form of general workspace ventilation is used?

tick

 
 

natural

 

forced (separate from furnace/s)

 

forced (combined with furnace/s)