Plate rolling production
Plate rolling shop for production of hot rolled products. Heating slabs before rolling.
Walking beam furnaces.
The project of replacing the failed sections of the old tube recuperator with all connecting dimensions kept.
The heating temperature of the combustion air increased from 140 degrees (obsolete recuperator) to 380 — 450 degrees, which ensures the stated payback period of the equipment.
Year of implementation
2015
Scope of delivery
Recuperator manufacturing, delivery, installation supervision and commissioning.
Result
During operation all the performance parameters, the declared efficiency and payback period have been achieved.
Inspection confirmed no defects detected in 2016
PERFORMANCE PARAMETERS
(per 1 section):
(per 1 section):
HOT SIDE
COLD SIDE
Inlet temperature, °С
950
0
Outlet temperature, °С
644
464
Flow rate, Nm3 / h
31 000
24 300
Pressure drop in channels, mm. WG
10
144
Thermal power, kW
4 198
Thermal efficiency, %
48,8
Plate rolling shop for production of hot rolled products. Heating slabs before rolling.
№ 1,2,3 walking beam furnaces.
The modernization program of the energy system of plate rolling mill. The project of replacing the failed sections of the tube recuperator.
The temperature of the combustion air increased to 450 degrees, which provided access to the planned savings on natural gas and allowed excluding one out of two working exhaust fan in waste heat boiler room, as well as to raise the temperature of steam produced.
Year of implementation
2015-2016
Scope of delivery
Recuperator manufacturing, delivery, installation supervision and commissioning.
Result
During operation all the performance parameters, the declared efficiency and payback period have been achieved.
PERFORMANCE PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
1 000
0
Outlet temperature, °С
675
449
Flow rate, Nm3 / h
163 500
141 665
Pressure drop in channels, mm. WG
24
531
Thermal power, kW
23 738
Thermal efficiency, %
44,9
Section and billet mills
Section and billet mills. Heating the workpiece before rolling.
Walking beam furnace
The project of replacing the failed sections of the tube recuperator with all connecting dimensions kept (“disassembly-assembly” option) as part of the investment program.
Result
During operation all the performance parameters, the declared efficiency and payback period have been achieved.
OPERATIONAL PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
920
20
Outlet temperature, °С
702
400
Flow rate, Nm3 / h
27 500
21 500
Pressure drop in channels, mm. WG
5
271
Thermal power, kW
3 026
Thermal efficiency, %
40,8
Forging mills
Forging and press mills
Reheating furnace
The project of replacing the failed sections of the tube recuperator with all connecting dimensions kept (“disassembly-assembly” option) as part of the investment program.
Result
During operation all the performance parameters, the declared efficiency and payback period have been achieved.
OPERATIONAL PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
1 000
15
Outlet temperature, °С
700
400
Flow rate, Nm3 / h
4 000
3 750
Pressure drop in channels, mm. WG
13
46
Thermal power, kW
535
Thermal efficiency, %
39,1
Blast furnaces
Blast shop.
Air preheaters (cowper stoves)
The project of the heat recovery system of flue gases after cowper stoves for heating water in utility buildings.
Approved in the framework of the investment program for 2018-2020 .
OPERATIONAL PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
205
50
Outlet temperature, °С
72
100
Flow rate, Nm3 / h
120 000
100
Pressure drop in channels, mm. WG
21
2047
Thermal power, kW
6 027
Heat treatment
Forging and press shop.
Heat treatment furnace.
Building of a new furnace according to a metallurgical plant modernization program.
Year of implementation
2015
Scope of delivery
Recuperator manufacturing, delivery, installation supervision and commissioning.
Результат
During operation all the performance parameters, the declared efficiency and payback period have been achieved.
PERFORMANCE PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
900
10
Outlet temperature, °С
559
451
Flow rate, Nm3 / h
4 100
3 700
Pressure drop in channels, mm. WG
43
29
Thermal power, kW
606
Thermal efficiency, %
49,6
ТЭЦ ПВС
Thermal power plant. Steam boiler room
TGM-151 / B boiler
The project of replacing rotary air preheaters (APH) with ribbed plate recuperators to increase the temperature of the air supplied to the burners of the boiler.
Approved in the framework of the investment program for 2018
PERFORMANCE PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
371
30
Outlet temperature, °С
201
300
Flow rate, Nm3 / h
258 993
174 689
Pressure drop in channels, mm. WG
98
78
Thermal power, kW
17 287
Thermal efficiency, %
79,3
Bucket drying stand
Steelmaking shop.
Recuperator of combustion air preheating.
New construction.
Accepted for implementation.
PERFORMANCE PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
800
0
Outlet temperature, °С
647
337
Flow rate, Nm3 / h
600
320
Pressure drop in channels, mm. WG
3
3
Thermal power, kW
40
