Offer of Thermal Power Plant with combustion of poultry waste. Nominal capacity 50 ton of steam per 1 hour for production of 10MW of electrical energy and 20 TPH steam for on the technical needs of the poultry production based on cogeneration.

Introduction

In accordance with your request here below the draft of offer for the construction of thermal power plant (TPP) with poultry waste use as fuel. This TPP is designed for generating of steam and electricity (cogeneration).

1. The technical concept.

TPP technical solutions (Figure 1) based on the usage of direct combustion of poultry waste technology at the power steam boilers with following generation of electric energy in a steam turbine. At the same time part of the steam from the turbine is taken away for the technical needs of the poultry production complex.

The energy complex consists of: the preparation of fuel, boiler and turbine workshop, dust cleaning system, smokestack, handling system of ash and slag.

According to technical data received from the client an average heat load of technical consumer is 12 GCal/h or 20 TPH of steam with burning of 30 tons of poultry waste per hour and output of 50 TPH of steam and generation of 10MW of electricity. TPP thermal scheme is envisaged as the following:

- separate steam pipelines from each boiler transport steam into a collector from which steam is directed to a turbine-generator - 75 TPH;

-   20 TPH of bled steam is directed on the technological needs, balance 55 TPH goes on the TPP own needs and to the steam condenser;

-    feedwater supply to the boiler is provided by feedwater pumps. Feedwater is supplied to the pumps from the atmospheric type de-aeration - feeding devices.

1.1 Steam boilers.

In the boiler room it is suggested to install: 3 steam boilers E-25-3 ,9-360 with 25 TPH of steam capacity, superheated steam pressure - 3,9 MPa and temperature of superheated steam - 380 ⁰C. Fuel consumption for one boiler is 10 TPH (240 tons per day).

1.1.1. Steam Boiler E-25-3.9-360.

The boiler E-25-3.9-360 is steam water tube boiler (Figure 2) with steam drum and natural water circulation in the superheating surfaces, with a chamber burning of fuel in the furnace. The layout of the heating surfaces is N-shaped.

Parameters of the boiler:

-  steam productivity - 25 TPH;

-  superheated steam temperature - 380 ° C;

-  high steam pressure - 3.9 MPa.

The composition of the boiler includes: boiler, fuel supply system, fuel burner, fire grate, thermal insulation, casing, feedwater supply system, service catwalks and platforms, boiler de-ashing cleaning system, ash removal system, drafting machines, instrumentation and boiler control system. Boiler control system provides:

-  automatic start and stop of the boiler;

-  automatic parameters adjustment for all operation modes;

-  automatic boiler protection in case of emergency situations;

-  technological parameters control;

-    executive and emergency alarm and locking with deciphering the root causes of protection activation;

-  operative information recording and display device.

Boiler's flue gas cleaning system of the harmful emissions which pollute the atmosphere is based on electrostatic precipitator with 99% efficiency with following parameters:

-           Flue gas temperature - +300°C;

-           Dew point - +15°C;

-           ESP output dust - 50 mg/Nm³.

ESP is designed for usage with one boiler and for outdoor installation.

1.3. Turbo-generator.

Turbine (Figure 4) with a capacity of 10MW is working with the condensing unit