Circulating fluidized bed boiler for combustion papermaking waste residue and sludge
A technology of circulating fluidized bed and papermaking waste, which is applied to fluidized bed combustion equipment, incinerators, steam boilers, etc., and can solve the problems of low-temperature corrosion of air preheaters, poor return of materials, and insufficient output, so as to achieve the goal of not easily accumulating Ash, smooth material return, sufficient output effect
Active Publication Date: 2015-01-14
WUXI HUAGUANG BOILER
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] At present, circulating fluidized bed boilers using such substances in China generally have poor material return, insufficient output, high-temperature corrosion of high- and low-temperature superheaters, dust deposition in low-temperature superheaters and economizers, and low-temperature corrosion of air preheaters.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] See figure 1 , which includes a drum 1, a furnace 2, a low-temperature superheater 3, an economizer 4, an air preheater 5, a feeding device, and an under-bed ignition device 6. The bottom of the furnace 2 is provided with an under-bed ignition device 6 and a slag discharge pipe 7 , the feeding device is located in the middle and lower part of the furnace 2, the top of the furnace 2 is supported by a drum 1, the furnace is connected to the flue, and the flue is equipped with a low-temperature superheater 3, an economizer 4, and an air preheater 5. The upper part of the furnace 2 The side outlet is connected to the upper side inlet of the high-temperature adiabatic volute cyclone separator 8, the top outlet of the high-temperature adiabatic volute cyclone separator 8 is connected to a flue, and the lower part of the high-temperature adiabatic volute cyclone separator 8 is connected to a return box 9, An external high-temperature superheater 10 is arranged in the return bo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a circulating fluidized bed boiler for combustion papermaking waste residue and sludge. The circulating fluidized bed boiler returns materials smoothly and is enough in output and insusceptible to high temperature corrosion of a high temperature superheater and a low temperature superheater and low temperature corrosion of an air preheater, and the superheaters and a coal economizer cannot accumulate dust easily. The technical scheme is that the circulating fluidized bed boiler comprises a boiling drum, a hearth, the low temperature superheater, the coal economizer, the air preheater, a feeding device and an ignition device under a bed. The ignition device under the bed and a deslagging pipe are arranged at the bottom of the hearth, the feeding device is located on the half lower portion of the hearth, the boiling drum is supported at the top of the hearth, the hearth is communicated with a flue, and the low temperature superheater, the coal economizer and the air preheater are arranged in the flue. The circulating fluidized bed boiler is characterized in that inlets of a high temperature thermal insulation volute cyclone separator are bilaterally symmetrically connected to an outlet of a rear wall of the upper portion of the hearth, and an outlet positioned at the top of the high temperature thermal insulation volute cyclone separator is connected with the flue.
Description
technical field [0001] The invention relates to the technical field of a circulating fluidized bed boiler, in particular to a circulating fluidized bed boiler burning papermaking waste residue and sludge. Background technique [0002] my country's paper industry is a relatively serious pollution industry. A large amount of waste residue and sludge generated in the production process, and waste plastic garbage picked up from paper mills have not been scientifically treated and are piled up everywhere. Waste plastics cannot be degraded in nature for a long time, which will cause serious environmental pollution hidden dangers. Some of them are burned everywhere, emitting unpleasant and poisonous odor gas, which seriously pollutes the air. It not only damages the ecology, but also threatens the physical and mental health of local people. [0003] Papermaking sludge is the terminal product discharged after wastewater treatment in paper mills. It is mainly composed of short fi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F23C10/10F23C10/22F22B31/08F23G7/00
Inventor 林敏
Owner WUXI HUAGUANG BOILER