Incineration boiler for saline waste liquid

A salt-containing waste liquid and boiler technology, applied in the field of boilers, can solve the problems of abnormal system operation, corrosion of furnace lining and heat exchange surface, scaling and blockage of heating surface, etc., and achieves simple manufacturing process, safe and stable operation, and reduced waste liquid. Effects of processing costs

Active Publication Date: 2012-07-18
大连科林能源工程技术开发有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

These substances have a strong corrosive effect on the furnace lining and heat exchange surface, which will cause the fur

Method used

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  • Incineration boiler for saline waste liquid
  • Incineration boiler for saline waste liquid

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Embodiment Construction

[0010] Such as figure 1 The shown a kind of saline waste liquid incineration boiler comprises a combustion chamber 1, a furnace door 2, a furnace wall 3, a cooling chamber 4, an upper drum (steam drum) 5, a flue gas outlet pipe 6, a lower drum 7, and The steel frame 8 used to support and fix each part, the lower side wall of the combustion chamber 1 is respectively provided with a burner 1.1 for injecting auxiliary gas or liquid fuel into the combustion chamber 1 for combustion and a burner 1.1 for injecting salty waste liquid into the combustion chamber The waste liquid spray gun 1.2 in 1, and the waste liquid spray gun 1.2 is located above the burner 1.1; the combustion chamber 1 is made of chromium corundum refractory concrete that is resistant to sodium salt corrosion, and the side wall of the combustion chamber 1 extends downward, and the downward extending The side wall is in the shape of a closed mouth so as to form a molten sodium salt lye that is convenient for the fo...

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Abstract

The invention discloses an incineration boiler for saline waste liquid, which mainly structurally comprises a combustor, a waste liquid spray gun, a heat-insulation hearth combustion chamber, a radiation cooling chamber, an upper boiler barrel (a steam drum), a lower boiler barrel, a convection tube bundle, an ash hopper, a boiler wall and a steel frame. As a heat-insulation hearth and a space of the hearth of the incineration boiler are large, the saline waste liquid is preheated, dissolved and combusted quickly and thoroughly after being sprayed into the boiler, noxious substances in the waste liquid can be effectively removed by means of incineration, melted sodium salt alkali liquor is gathered on the lower portion of the hearth along four walls of the hearth and then is drained out of the boiler via an alkali liquor outlet to be recycled, and high-temperature flue gas generated by the incineration boiler sequentially enters the multi-stage radiation cooling chamber and the convection tube bundle so that heat energy is recycled. The incineration boiler is simple in manufacturing process, convenient in maintenance and safe and stable in running, chemical waste gas can be simultaneously incinerated, and the incineration boiler is applicable to popularization and application in terms of treatment of saline waste liquid and waste gas in the industries of chemical engineering and paper making.

Description

technical field [0001] The invention relates to a boiler for incinerating and recovering heat from salt-containing waste liquid in chemical industry and papermaking industry. Background technique [0002] In the production process of chemical industry, papermaking and other industries, a large amount of saline waste water and black liquor are often produced. These waste liquids contain a large amount of harmful chemical substances, such as: liquid hydrogen cyanide, ammonium sulfate, etc., in order to avoid these high-risk pollutants It poses a threat to human health and the natural environment, and it needs to be harmless, reduced and resourced. Due to the high salt content and high toxicity of these waste liquids, they can hardly be treated biochemically. Therefore, it is of great significance to find a reasonable and effective treatment technology to reduce the pollution of the waste liquid to the environment and promote the sustainable development of the industry. [000...

Claims

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Application Information

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IPC IPC(8): F23G7/04F22B31/04
Inventor 余传林何成国唐义磊李金涛郑贵涛于春国高佰祥隋启明李超郑全军徐扬杨志刚魏宏大周皓
Owner 大连科林能源工程技术开发有限公司
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