Name and Location
Tsuzuki incineration plant refurbishment project, Yokohama, Japan.

Client
Kanagawa Prefecture.

Project Description
The project involves refurbishing the core equipment of the city’s Tsuzuki incineration plant – a municipal solid waste incineration facility, in Yokohama.

The modification work calls for revamping the plant’s stoker furnace-type incinerators, with a combined processing capacity of 1 200 t/d, to extend the plant’s operational life by more than ten years and increase the output and energy-saving capability of its steam turbine generator.

The current incineration facilities comprise three stoker furnaces, with 400 t/d of processing capacity and associated equipment. Power generation capacity
of the plant’s steam turbine generator is 12 MW.

The newly ordered work will consist of replacing and revamping the plant’s core equipment, including facilities for combustion, combustion gas cooling and waste-heat use, as well as electrical instrumentation. Output of the steam turbine will be increased to 13 MW and the on-site power generation ratio will be enhanced to permit increased revenues from the sale of electricity. Higher equipment energy efficiency will be achieved through the adoption of high-efficiency motors and inverters in all equipment.

The adoption of Mitsubishi Heavy Industries Environmental & Chemical Engineering Co’s (MHIEC’s) patented ‘combustion control system,’ which contributes to stable combustion, will reduce the volume of waste gas through low-air-ratio operation and promote less energy consumption by ventilators. These features will enable a greater than 20%, or 2 500 t, reduction in carbon dioxide emissions each year, contributing to the curbing of global warming.

Value
Not stated.

Duration
The refurbishing work is slated for completion in March 2018.

Latest Developments
MHIEC, a group company of Mitsubishi Heavy Industries, has received an order from the Kanagawa Prefecture to refurbish the core equipment of the city’s Tsuzuki incineration plant.

Key Contracts and Suppliers
MHIEC (incineration plant refurbishment).

On Budget and on Time?
Not stated.

Contact Details for Project Information
Mitsubishi Heavy Industries, Hideo Ikuno, tel +81 3 6716 5277 or email h.ikuno@daiya-pr.co.jp.