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Method for electric generating utilizing stalks mixed burned with city life refuses

A technology of municipal solid waste and solid waste, applied in the field of using straw to burn municipal solid waste to generate electricity, can solve problems such as waste of resources, achieve the effects of improving stability, reducing dioxin emissions, and improving waste combustion efficiency

Inactive Publication Date: 2007-01-03
TIANJIN TEDA ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the working conditions of garbage burning are not good, fuel oil should be properly injected to support the combustion, so as to achieve the above-mentioned environmental protection purpose, so that other resources are wasted while disposing of garbage

Method used

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  • Method for electric generating utilizing stalks mixed burned with city life refuses
  • Method for electric generating utilizing stalks mixed burned with city life refuses

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The present invention is a system for generating electricity by mixing straw and burning municipal solid waste, such as figure 1 As shown, mainly include

[0025] 1. Straw and garbage storage and transportation system: The main function is to collect, store and transport the straw and domestic garbage to the material storage pit of the incineration power plant for use.

[0026] 2. Incineration system: The straw and garbage in the storage pit are sent to the incinerator. The combustion components of the mixture in the incinerator are fully burned and converted into heat energy, and the non-combustible components are converted into ash and slag for collection and disposal.

[0027] 3. Energy conversion system, heat energy is converted into electric energy: the heat energy generated by the combustion of the mixture is absorbed into high-quality steam through the medium water, and the steam drives the steam turbine to drive the generator to generate electricity, realizing the c...

Embodiment 2

[0033] Table 1: Straw composition analysis

[0034]

[0035] According to the analysis of the straw composition in Table 1, the ratio of addition is different from that of garbage.

[0036]With the improvement of people's material living standards, the calorific value of waste will continue to increase. Therefore, the calorific value of waste is generally higher than the current design of incineration power generation equipment. When the quality of the waste is good, such as leaves, paper, plastic waste, a small amount of wheat straw, rice straw, etc. are mixed to increase the calorific value of the waste. The ratio of mixed burning of straw is generally 0.01%-10%, and the combustion temperature in the furnace is normal. Keep it at around 1000℃-1200℃. In this way, the efficient operation of incineration power generation equipment can be ensured. At the same time, the waste burnout rate can be increased, the waste ash reduction rate can be reduced, and higher...

Embodiment 3

[0038] Garbage moisture content, ash content and garbage composition are the main factors affecting garbage combustion. When the quality of garbage is not good, generally speaking, it is the garbage with high lime content or high moisture content or both, such as rotting vegetable leaves, dust particles, swill and other domestic garbage. Lime soil will increase the compactness of the garbage, which will put a lot of pressure on the primary air inlet of the grate, which will affect the primary air entering the furnace. The opening of the primary air door is generally around 90%, and sometimes it is not even 100%. It can fully meet the demand of air volume. Adopting an appropriate amount of straw to mix with garbage can effectively solve the problem. According to the amount of ash soil, the ratio of mixed burning of straw is generally about 10% to 30%. Straw and garbage are mixed into the incinerator. Due to the good support of the straw, the fluffiness of the overall mixed combusti...

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Abstract

The invention relates a method of generating by using mixed combustion of stalks and municipal house refuse. The heat energy produced by the mixed combustion of the stalks and the municipal house refuse in the refuse burner is coverted into the generating energy by a boiler, a turbine and a generator, so as to supply the power for cities. The proportion of the stalks and the house refuse in their mixed combustion must be adjusted continually according to the differences of refuse water ratio and dust composition. When the combustion temperature in the burner is in the range of 870-1200 deg. C, the combustion can be fully burned and the combustion product can be discharged up to the standard.

Description

Technical field [0001] The invention relates to a method for generating electricity by using the mixed combustion of farmland straw and urban domestic garbage. Background technique [0002] In recent years, with the rapid development of the national economy, the prices of oil and coal in my country have also soared. Research and analysis show that the prospects for energy utilization in my country are not optimistic. In view of the above situation, on the one hand, it is necessary to save energy and reduce consumption and improve the efficiency of primary energy utilization. On the other hand, it is necessary to develop alternative new energy sources as soon as possible. Combining my country's national conditions and accelerating the development and utilization of renewable energy has become the only way for my country's energy strategy development. On February 28, 2005, the National People's Congress has deliberated and passed the "Renewable Energy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/00F01D15/00
CPCY02E50/12Y02E20/12Y02E50/10
Inventor 高亮张景辉高建东张曙光张国立邵德州杨军王炳华李玉军吴才玉
Owner TIANJIN TEDA ENVIRONMENTAL PROTECTION
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