Glass kiln denitration generating system

Abstract

The invention relates to a glass kiln denitration generating system. The system comprises an ammonia spraying device, a reactor, a boiler evaporimeter, a superheater and a boiler economizer, wherein the ammonia spraying device comprises an ammonia storing tank, a heater, an ammonia spraying fence, a fan and a heat exchanger; the reactor is arranged inside a denitration exhaust-heat boiler and on the upper part of the heat exchanger; the boiler evaporimeter is arranged inside the denitration exhaust-heat boiler and is connected with a turbine outside the denitration exhaust-heat boiler through a pipeline, and the turbine is successively connected with a generator, a condenser, a condensate pump, a deaerator, a boiler feed pump outside the denitration exhaust-heat boiler through the pipeline; the superheater is arranged inside the denitration exhaust-heat boiler and at the bottom of the ammonia spraying fence and on the upper part of a smoke inlet, wherein one end of the superheater is connected to the evaporimeter through the pipeline, and the other end thereof is connected to the turbine through the pipeline; and the boiler economizer is arranged inside the denitration exhaust-heat boiler and at the bottom of the boiler evaporimeter.

Description

technical field [0001] The invention relates to a glass kiln power generation device, in particular to a glass kiln power generation device with denitration function. Background technique [0002] Glass production consumes a lot of energy. Taking the current domestic production scale of 400-900t glass liquid / d as an example, the design heat consumption is about 6908kJ / kg glass liquid, and the power consumption is 250kWh / t glass liquid. higher than the design parameters. The three major thermal equipments for glass production: melting kiln, tin bath and annealing kiln have a large amount of waste heat. It can be seen that the efficient use of waste heat in glass production has become an effective way to reduce the comprehensive energy consumption of glass production. [0003] At present, the method of using waste heat in glass production is to set up waste heat boilers at the end of the melting kiln to recover waste heat. The steam produced by waste heat boilers is used to t...

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Problems solved by technology

[0005] So far, glass kiln waste heat power generation and flue gas denitrification are two independent processes, resulting in relatively large complex equipment and unable to optimize both, resulting in increased investment and increased operating costs, so it is difficult to expand the project.

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