Instructional Manual For Clarification Of Startup In Source Categories Affected By New Source Performance Standards - U.s. Environmental Protection Agency - 1979 Page 78
ADVERTISEMENT
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
41 
42 
43 
44 
45 
46 
47 
48 
49 
50 
51 
52 
53 
54 
55 
56 
57 
58 
59 
60 
61 
62 
63 
64 
65 
66 
67 
68 
69 
70 
71 
72 
73 
74 
75 
76 
77 
78 
79 
80 
81 
82 
83 
84 
85 
86 
87 
88 
89 
90 
91 
92 
93 
94 
95 
96 
97 
98 
99 
100 
101 
102 
103 
104 
105 
106 
107 
108 
109 
110 
111 
112 
113 
114 
115 
116 
117 
118 
119 
120 
121 
122 
123 
124 
125 
126 
127 
128 
129 
130 
131 
132 
133 
134 
135 
136 
137 
138 
139 
140 
141 
142 
143 
144 
145 
146 Dryer:
Startup of a dryer begins when ore is first fed into the dryer.
If no problems develop, the dryer should achieve maximum production in
l~
hours.
Special procedures sometimes require the·presence of a manufaccurer's application
engineer to make adjustments such as drum rotational speed, material fall slope,
and temperature to attain the designed moisture content in the ore.
No more
than 2 days are required to make final adjustments.
Manufa~turers
indicated
that the lBO-day period performance test period should begin when material is
first fed to the dryer.
Multiple Hearth:
After the pre-startup operations, the unit is slowly
charged with ore to prevent thermal shocks and gradients within the refractory
material.
The load is gradually increased to maximum capacity consuming 1-2
weeks.
The official startup should be when material is first introduced into
the furnace.
Prior to charging, the furnace could be shut down very easily
for repair without major time expended.
Fluidized Bed:
Following pre-startup operation and heatup, ore is slowly
introduced into the furnace taking 2-4 days to reach maximum production.
The
official startup date should be when material is first introduced into the
furnace.
Smelting Furnaces
Reverberatory Furnace:
Following pre-startup and heat-up, ore is slowly
introduced into the furnace developing matte.
Matte is composed of copper,
iron and some sulfur.
Flux is then added to the matte to develop an iron
oxide slag.
In order to have a continuous process and to develop maximum
production, a good matte is necessary.
The development of a good matte, essen-
tial for maximum production, may take as long as 3 to 4 weeks and is dependent
upon operator skills.
Inexperienced operators may take as long as 2 months to
develop a good matte.
The official startup date should be when material is
first introduced into the furnace.
Electric Furnace:
After pre-startup operation and heat-up, the charge is
slowly introduced into the furnace to develop a good matte and to prevent
thermal gradients and shocks to the refractory material.
During this period,
flux is also added to develop a slag.
Maximum production cannot be reached
unless a good matte exists and this again may take 3-4 weeks depending on
operator skills.
The official startup date should be when ore is first intro-
duced into the furnace.
Converter:
After pre-startup operations and heat-up, the matte from the
smelting furnace is introduced into the converter.
If the first heat goes
smoothly, the process may continue while slowly increasing the quantity of
matte introduced into the converter until. maximum production is reached.
It
may take as long as 6 to 8 months to develop a maximum production rate.
The
official startup date should begin when material is first introduced into the
converter.
6(;
ADVERTISEMENT
0 votes
Related Articles
Related forms
Epa 402-r-98-008 - Statistical Procedures For Certifying Phosphogypsum For Entry Into Commerce - U.s. Environmental Protection Agency - 1998
Legal
Small Systems Guide To Safe Drinking Water Act Regulations - U.s. Environmental Protection Agency - 2003
Legal
Form Rc-4100 - Reader Response Card - U.s. Environmental Protection Agency Water Resource Center
Legal
Request For Transfer Of A Computer Readable Form Under 37 Cfr 1.821(e) - U.s. Department Of Commerce
Legal
U.s. Government, Federal Agency Or Instrumentality Exemption Certificate Form - Kansas Department Of Revenue
Financial
Related Categories
Parent category: Legal