Sludge incinerator with no auxiliary fuel

Abstract

The invention relates to the field of environmental engineering, in particular to sludge incineration technology. The sludge incinerator with no auxiliary fuel overcomes the disadvantage that sludge incineration in the prior art requires the auxiliary fuel such as coal. The sludge incinerator with no auxiliary fuel mainly comprises a boiling section, a suspension chamber, a spray pipe, a gas-guide pipe, a support arch, a slag outlet, a cooling spray nozzle, a combustor, an air chamber and a high-temperature air pre-heater, a slag cabin, a sand hoisting machine, a sand feeder, a middle cabin and a feeding machine. The sludge incinerator with no auxiliary fuel has the following advantages that: the incinerator adopting the technology can realize stable incineration of the sludge under the condition of not adding the coal so as to achieve innocent treatment of the sludge; the sludge incinerator using the technology can store a large amount of heat inside, and a bed has a uniform reaction temperature, so that partial overheat phenomenon is prevented and the temperature in the bed is easy to be controlled; the sludge incinerator is also safe for treating sludge containing a lot of volatile substances (such as oil-containing sludge); a fluidized bed has a simple structure, a low failure rate and a low construction cost, and is provided with a mechanical transmission component; the sludge incinerator can lower the coefficient of excess air and can reduce power consumption; the sludge incinerator has wide fuel adaptability so as to realize controlling harmful gases, such as SO2, NOx and the like easily and to obtain higher combustion efficiency; and ash produced by sludge incineration has a plurality of applications.

Description

Technical field: [0001] The invention relates to a bubbling fluidized bed sludge incinerator with zero auxiliary fuel, which can process low calorific value, high moisture, flame retardant homogeneous particles and powdery substances through incineration. In particular, it can incinerate municipal sludge and industrial sludge. Specifically refers to the incinerator. Background technique [0002] During the treatment of industrial sewage, domestic sewage and municipal tap water, sludge of various properties will be produced, with relatively large differences in composition and properties, and some of them are hazardous wastes. With the recent development of my country's environmental protection industry, sludge treatment has also begun to start, but most of the local sewage treatment and associated products of industrial production - sludge has not been well disposed of, and a considerable part of it has been sent to landfill. It is even discarded by the river and in the wil...

AI Technical Summary

Problems solved by technology

However, the investment and operating costs of rotary incinerator equipment are slightly higher

Images