In 1979, a dry coke quenching system was built as part of coking battery No. 5 at Kemerovo Coke and Chemical Plant, which consisted of four units for quenching coke containing KST-80-1 recycling boilers produced by the Belenergomash boiler plant (Belgorod). Boiler parameters: Steam pressure at outlet, kgf/cm~2 40 Temperature of steam from superheater, deg C 440 Boiler throughout, t/h 25 To convert the parameters of the steam from the boilers to those of the steam used in the technology, in the DCQS were mounted four reduction and cooling units (RCU) type 40/6, which reduced the steam pressure from 40 to 6 kgf/cm~2. As the other boilers at the plant produce steam with a pressure of 13-14 kgf/cm~2 at a temperature of 300 deg C, and also because it was not necessary to use high-parameter steam from the DCQS boilers, in 2001 experts from the Coke Company proposed to modify the DCQS boilers to convert them to reduced parameters. Also, to produce high-pressure steam from these boilers, use was made of a group of PE-150-63 pumps providing a pressure of 64 kgf/cm~2 (4AZM-500 electric motors of power 500 kW, 6000 V). To implement this, the power engineers at the Coke Company worked with experts at the Sibenergomash Boiler Company (Barnaul) on converting the KST-80-1 boilers to reduced parameters. The designers at the Sibenergomash Company did the necessary calculations and produced the documentation to modify the boilers. The calculations also envisaged increasing the throughput of the boilers by 2-3 t/h of steam, which was very valuable to the Coke Company because of an ongoing deficiency of heat energy in the winter.
展开▼
