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Environment-friendly method for directly mix-burning sludge in pulverized coal furnace

A pulverized coal furnace and sludge technology, applied in combustion methods, dehydration/drying/concentrated sludge treatment, incinerators, etc., can solve problems such as secondary pollution, achieve compact layout, reduce energy consumption, and meet emission standards.

Pending Publication Date: 2018-08-14
光大清洁技术股份有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The invention provides an environmentally friendly method for directly blending and burning sludge in a pulverized coal furnace to solve the problem that the traditional pulverized coal furnace blending and burning sludge will cause secondary pollution and require special equipment for drying and dehydration

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  • Environment-friendly method for directly mix-burning sludge in pulverized coal furnace
  • Environment-friendly method for directly mix-burning sludge in pulverized coal furnace

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0025] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be Directly connected or indirectly connected through an intermediary, those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0026] see figure 1 Shown i...

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Abstract

The invention provides an environmental-friendly method for directly mix-burning sludge in a pulverized coal furnace. The method is characterized by directly inputting the sludge into a coal mill through a pumping manner, mixing with fire coal, drying, powdering, and feeding into the pulverized coal furnace for mix-burning for generating power. A negative pressure caching bin, a sludge conveying pump, an airtight pipeline, the coal mill, the pulverized coal furnace and a control system connected sequentially are arranged corresponding to the mix-burning system; the negative pressure caching bin is used for caching sludge; the sludge conveying pump directly conveys the sludge to the coal mill through the airtight pipeline; the sludge has no need to be specially dried or dewatered before entering the coal mill; the coal mill is used for mixing, drying and powdering the sludge and the fire coal conveying into the coal mill; the sludge and powdered granulated mixtures of the fired coal areconveyed to the pulverized coal furnace so as to be used for burning and generating power. The method provided by the invention can be used for treating the sludge in a reduction, harmless and recycling way, is simple, convenient, efficient and low in energy consumption, and meets the emission standards; a sludge pumping room and pipelines are arranged flexibly and compactly and are less in investment.

Description

technical field [0001] The invention belongs to the field of sludge disposal, and in particular relates to an environment-friendly method for directly mixing and burning sludge in a pulverized coal furnace. Background technique [0002] Sludge is a derivative of municipal sewage treatment. At present, the annual output of municipal sludge in my country has exceeded 40 million tons, and it is expected to reach 60 million to 90 million tons by 2020, and the annual output of municipal sludge is increasing year by year. Sludge is an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids, etc. The main characteristics of sludge are high water content, high organic content, easy to rot and smell, and the particles are finer, the specific gravity is smaller, and it is in a colloidal liquid state. If it is not timely and thoroughly "stabilized, reduced, and harmless" disposed of, it will cause serious pollution to the enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12F23G7/00
CPCF23G7/001C02F11/12
Inventor 孙浩吴淼景武刘清平
Owner 光大清洁技术股份有限公司
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