Thermal decomposition adhesive material removing method and thermal decomposition gasification system
A gasification system and thermal decomposition technology, applied in the field of thermal decomposition products, can solve problems such as poor practicability, poor removal effect of attachments, and long time removal, and achieve the effect of suppressing supply and reducing life cycle costs.
Active Publication Date: 2014-03-12
MITSUBISHI HEAVY IND ENVIRONMENTAL & CHEM ENG CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, under the conditions of Patent Document 1, even if the pyrolysis deposits of the biomass pyrolysis gasification system are removed, the removal effect of the deposits is poor, so there is a problem that it takes a long time to remove them.
That is, under the conditions of Patent Document 1, it is necessary to stop the equipment for a long time to remove the biomass pyrolysis deposits, which is poor in practicability
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
[0035] Next, the method for removing pyrolysis deposits of the present invention will be described in detail.
[0036] exist figure 1 In the biomass pyrolysis gasification system shown, when the output of the blower 14 exceeds a reference value or after the biomass pyrolysis gasification system is operated for a certain period of time, the pyrolysis gasifier is stopped. Next, combustion, decomposition and removal (decoking) of pyrolysis deposits deposited on the inner wall of the piping, the impeller of the blower, and the like are carried out.
[0037] figure 2 yes means figure 1 A schematic diagram of the piping section of the biomass gasification system. In the method for removing pyrolysis deposits of this embodiment, the oxidizing agent is introduced from at least one point of the piping. For example, from figure 2 The oxidant supply port L (pipe on the upstream side of the blower 14), the oxidant supply port M (pipe at the outlet 15 of the pyrolysis gasifier), the...
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 method capable of effectively removing thermal decomposition products on an inner wall of a pipe in a biomass thermal decomposition gasification system and a thermal decomposition gasification system. The thermal decomposition adhesive removing method is that: in the thermal decomposition gasification system (10) of the biomass such as an underwater sludge and a woody biomass, the mixed gas of below 13 volume% of an inactive gas and above 5 volume% of oxygen is arranged in the pipe (12) between a thermal decomposition gasification furnace (11) and a combustion furnace (13) to circulate and the thermal decomposition adhesive material on the inner wall of the pipe at the gas temperature of above 500DEG C burns to be removed.
Description
technical field [0001] The present invention relates to a method for removing pyrolysis products adhering to the inside of piping and the like in a biomass pyrolysis gasification system such as sewage sludge and woody biomass. Background technique [0002] exist figure 1 In the illustrated biomass pyrolysis gasification system 10 , biomass is thermally decomposed in a pyrolysis gasification furnace 11 at a temperature of 300 to 600° C. in an oxygen-blocked atmosphere. The pyrolysis gas generated in the pyrolysis gasification furnace 11 is sent to the combustion furnace 13 through the pipe 12 and combusted in the combustion furnace 13 . [0003] When the above-mentioned biomass pyrolysis gasification system is operated, pyrolysis gas condenses on the inner wall of the piping and the impeller of the blower 14 installed in the middle of the piping, and adheres or accumulates dust. When the amount of deposits and deposits (hereinafter referred to as deposits) increases, pipes ...
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): B08B9/032F23G5/027F23G5/44
Inventor 远藤雄树加仓田一晃山内恒树森亮介
Owner MITSUBISHI HEAVY IND ENVIRONMENTAL & CHEM ENG CO LTD