CN107588422A - A kind of heat-storage catalytic pyrolysis and combustion device - Google Patents
A kind of heat-storage catalytic pyrolysis and combustion device Download PDFInfo
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- CN107588422A CN107588422A CN201710268377.9A CN201710268377A CN107588422A CN 107588422 A CN107588422 A CN 107588422A CN 201710268377 A CN201710268377 A CN 201710268377A CN 107588422 A CN107588422 A CN 107588422A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Incineration Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of heat-storage catalytic pyrolysis and combustion device, belongs to high-temperature heat accumulation catalysis burning and environmental protection technical field.The high temperature pyrolysis combustion stabilizer combined using built-in carborundum, the accumulation of heat of refractory honeycomb ceramics double tower Large Copacity, oxyhydrogen catalysis burning, poisonous and harmful flue gas nearly 10s in carborundum, porous ceramics high-temperature heat accumulation body high-temperature stable is set to burn, so as to obtain more preferably degradation effect, interior circulation, the no pollution of medical waste thermal decomposition burning disposal can be achieved.The collaboration of heat-storage catalytic pyrolysis and combustion device, the secondary treatment system as the disposal of microwave plasma sterilization catalytic pyrolysis, it is possible to achieve the complete innoxious, minimizing of clinical waste and recycling.
Description
Technical field
The present invention relates to a kind of heat-storage catalytic pyrolysis and combustion device, belongs to high-temperature heat accumulation catalysis pyrolysis and combustion and environmental protection
Technical field.It can be applied to clinical waste, industrial waste, hazardous waste, domestic rubbish disposal.
Background technology
Medical waste high temperature pyrolysis processing is the mainstream technology that Chinese Ministry of Environmental Protection is recommended, and we have applied for hair on June 6th, 2002
Bright patent：A kind of thermal dissociation gasification turbulent flow injection combustion apparatus, patent No. ZL02115337X.The patent of invention pyrolytic reaction and solely
The turbulent flow spray combustion of spy, high-temperature heat accumulation burning, it can be ensured that imflammable gas and absorption having on flue dust under high-temperature situation
Malicious harmful substance combustion decomposition.
By practice and exploring for many years, it has been found that although turbulent flow spray combustion device emission reduction effect is notable, also have
Volume is less than normal, flue gas passage time is short, it is laterally disposed easily block, without catalysis carbon distribution it is on the high side the deficiencies of.
The conventional wisdom of pyrolytic incineration is thought, under 850 DEG C of high temperature, gas residence time removes two not less than 2s cans
The poisonous and harmful substances such as English are disliked, but practical operation situation is really not so.Proved by test of many times, 850 DEG C or so or slightly higher
Temperature can not possibly decompose high stability compound all in flue gas completely in or so 2s times.The two of incineration technology use at present
There is no heat-storing material in secondary burner hearth as high-temperature stable device.Not only temperature is low for empty thorax burning, and the burning gases residence time is short,
In burner hearth in operation temperature is fluctuated obvious up and down by gas pulsations affect, and these factors compositions conventional heating technique is difficult
Qualified discharge, the waste incineration enterprise neighbour event of keeping away is caused to take place frequently, the contribution to atmospheric haze is discharged in industrial production, waste incineration etc.
Gradually understood and paid attention to by people.As the various more strict pollutant emission standards of country are put into effect in succession, controlled from source
Reason disposal of pollutants has become China and checks the most important thing that Brownish haze takes place frequently.From 2016, various waste incinerations need to be held
The new discharge standard of row, new standard are tighter than former standard 10 times.This requires us to have in Theory of Combustion and technology
Broken through, just can ensure that according to new standard qualified discharge.
The content of the invention
We are improved on the basis of a kind of " thermal dissociation gasification turbulent flow injection combustion apparatus " patent of invention, and " a kind of accumulation of heat is urged
The patent of invention of change pyrolysis and combustion device ".Combustion is pyrolyzed using the double tower Large Copacity accumulation of heat of built-in carborundum, refractory honeycomb ceramics
Burn, oxyhydrogen catalysis burning combination upgrading, make poisonous and harmful flue gas in porous ceramics, carborundum high-temperature heat accumulation catalysis pyrolysis environment
Burnt up to 10s high-temperature stable down, so as to obtain more preferably degradation effect, the interior of medical waste thermal decomposition burning disposal can be achieved
Circulation, no pollution.The collaboration of heat-storage catalytic pyrolysis and combustion device, the reprocessing as microwave plasma sterilization catalytic pyrolysis
System, it is possible to achieve the innoxious of clinical waste, minimizing and recycling.
The core technology route and advantage of the present invention
Such as Fig. 2 so showing, fuel gas 10 caused by clinical waste pyrolysis enters the present apparatus 11 from combustible gas air inlet pipe, then
With 15, the four eddy flow mixed combustion of wind 16 of Secondary Air 13, tertiary air tangentially entered and enter furnace chamber in the mixed combustion chamber of flue gas turbulent flow
Interior carborundum accumulation of heat grid and staggered ceramic porous heat-storing material is above assembled, the height of building by laying bricks or stones of accumulation of heat porous ceramics is
The 60%~80% of whole heat-accumulation combustion chamber height, the tiling method of ceramic heat-storing material are followed uniform, porous and staggeredly advised
Then, so that thermal-flame is evenly distributed in each space and under the influence of tangential Secondary Air and tertiary air, four wind eddy flows, protect
Hold the turbulivity of height.Burnt from bottom to top and then from top to bottom in motion.Flame caused by burning is in staggered storage
Crossfire in gap between hot material and ceramic porous heat-storing material, and form great turbulence level.The high temperature released that burns adds simultaneously
Refractory material in thermal regenerator material and furnace wall, them is absorbed enough heats and remain higher by 300 than general empty burner hearth
DEG C the condition of high temperature.When flame reach first furnace chamber top when, due to the effect of negative pressure, flame by along passage of flame enter
Enter second furnace chamber top, then continue to move and burn from top to bottom, complete whole combustion processes.Caused high-temperature flue gas passes through
Heat exchange of heat pipe 14 will be delivered to Secondary Air tertiary air and four wind after air preheat, laggard finally by pollution reducing facility 17
Row heat energy utilization.12 be that oxyhydrogen catalytic ignition surely fires system.
High-temperature catalytic heat-accumulation combustion in fuel gas second-time burning after pyrolysis, is added using the steady combustion of oxyhydrogen catalysis
Electrolysis water produces the technology of oxyhydrogen catalysis burning.Containing two hydrogen, an oxygen in oxyhydrogen.Heat-storage catalytic has low when burning
" temperature-changing characteristic " of air capacity burning, flame temperature can change between 125 °C~6000 °C.High-temperature heat accumulation catalysis burning production
Liveliness proof atom, the cracking of flue gas medium high carbon hydrogen chain can be promoted, accelerate oxidation reaction speed, it is suppressed that the generation of dioxin,
Serve the effect of catalysis burning.
Temperature sensor and oxygen sensor form closed-loop system with the frequency conversion fan of secondary, tertiary air, four wind, are protecting
Hold 850-1100 DEG C of temperature, automatically adjust secondary, tertiary air air quantity in oxygen content 11% or so.
Brief description of the drawings
Fig. 1 is the structural representation of the present apparatus
Fig. 2 is the FB(flow block) of the present apparatus
As shown in Figure 1, described heat-storage catalytic pyrolysis and combustion apparatus structure is double tower body, is set between double tower furnace chamber and furnace chamber
There is passage of flame 18 and 26, directly connect, formed from top to bottom, reentrant type quirk from top to bottom, the profile knot of burner
Structure size is determined that the burner critical piece includes double tower body of heater by handled flue gas flow；Taper water seal dedusting 10
With 20；The mixed combustion chamber 12 and 24 of flue gas turbulent flow；Carborundum accumulation of heat grid 15 and 22；Combustible gas inlet tube 11；Smoke outlet tube 21；Can
Fuel gas inlet temperature detection thermocouple 14；Flue gas exit temperature detects thermocouple 23；Oxyhydrogen igniting 14；Oxygen sensor 25；
Refractory ceramics heat storage 16,24；Passage of flame 18,26；Secondary air inlet 13；Wind inlet 17 three times；Four wind inlets 25.
Embodiment
5t/d medical refuse burning devices, msw water content 18%, flue gas operating mode flow are 2500m3/h.Using the present invention
Described heat-storage catalytic burner, the body of heater of burner are Double-Tower Structure, drum diameter 2300mm, height 6300mm.Can
Fuel gas inlet pipe and exhanst gas outlet pipe diameter 400mm.Passage of flame size is 450mm between furnace chamber and furnace chamber.In furnace chamber staggeredly
Assemble resistance to 1700 DEG C of carborundum grid and refractory ceramics heat-storing material, the passage of flame that heat-storing material assembles be about 60% with
On.The body of heater of combustion system of the present invention is made using common iron, and middle heat-barrier material uses aluminum silicate insulation material, fire proofed wood
Material uses aluminous refractory.Hydrogen or oxygen gas is according to 4 cubic meters/hour of additions.
After measured, flame residence time in system is about 9.8s.Mean temperature in A furnace chambers is 1196 DEG C；In B furnace chambers
Mean temperature be 1131 DEG C.
Clinical waste pyrolysis gas measures main in exiting flue gas after heat-storage catalytic pyrolysis and combustion device of the present invention
Content of organics is respectively：Dioxin organic matter is 0.041ng TEQ/m3.CO in exiting flue gas is 1mg/m3.Mark combustion
Whether thoroughly CO is burnt, is only 1mg/m3 in exiting flue gas, the CO in flue gas after most garbage burning factories processing
It is more than 100mg/m3.Existing national standards GB18485-2001 setting is≤150mg/m3, Europe superscript EU2000/76/
EC (2000 standard) setting is≤50mg/m3.
Claims (5)
1. a kind of heat-storage catalytic pyrolysis and combustion device, its technical characteristic claim is as follows.
2. a kind of heat-storage catalytic pyrolysis and combustion apparatus structure according to claim 1 is double tower body, double tower furnace chamber and furnace chamber
Between be provided with passage of flame, directly connect, formed from top to bottom, reentrant type quirk from top to bottom, the profile knot of burner
Structure size is determined by handled flue gas flow；Fuel gas caused by clinical waste pyrolysis enters this dress from combustible gas air inlet pipe
Put, then with Secondary Air, tertiary air and the four wind eddy flow mixed combustion tangentially entered and enter stove in the mixed combustion chamber of flue gas turbulent flow
Intracavitary carborundum accumulation of heat grid and staggered ceramic porous heat-storing material is above assembled, porous regenerator ceramics build height by laying bricks or stones
For the 60%~80% of whole heat-accumulation combustion chamber height, the tiling method of ceramic heat-storing material follows uniform, porous and staggeredly
Rule, so that thermal-flame is evenly distributed in each space and under the influence of tangential Secondary Air and tertiary air, four wind eddy flows,
The turbulivity of height is kept, is burnt from bottom to top and then from top to bottom in motion, flame is staggered caused by burning
Heat-storing material, crossfire in the gap between ceramic porous heat-storing material, and form great turbulence level while add the high temperature for releasing of burning
Refractory material in thermal regenerator material and furnace wall, them is absorbed enough heats and remain higher by 300 than general empty burner hearth
DEG C the condition of high temperature；
When flame reaches first furnace chamber top, due to the effect of negative pressure, flame by along passage of flame enter second
Furnace chamber top, then continue to move and burn from top to bottom, complete whole combustion processes；Caused high-temperature flue gas passes through heat pipe heat exchanging
Device preheating Secondary Air, tertiary air, four wind, finally by carrying out heat energy utilization after dust pelletizing system.
3. heat-storage catalytic pyrolysis and combustion device according to claim 1 is using the steady combustion of oxyhydrogen catalysis, after pyrolysis can
In combustion gas body second-time burning, add the technology that electrolysis water produces oxyhydrogen catalysis burning, in oxyhydrogen containing two hydrogen, one
Oxygen,
Heat-storage catalytic has " temperature-changing characteristic " of low latitude tolerance burning when burning, flame temperature can 125 °C~6000 °C it
Between change；High-temperature heat accumulation catalysis pyrolysis and combustion produces active atomic, can promote the cracking of flue gas medium high carbon hydrogen chain, make oxidation reaction
Speed is accelerated, it is suppressed that the generation of dioxin, serves the effect of catalysis pyrolysis and combustion.
4. temperature sensor and oxygen sensor are the same as two in a kind of heat-storage catalytic pyrolysis and combustion device according to claim 1
Secondary, tertiary air, the frequency conversion fan of four wind form closed-loop system, in 850-1100 DEG C of keeping temperature, oxygen content 11% or so certainly
Dynamic regulation is secondary, the air quantity of tertiary air, four wind.
5. the foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, appoint
What those familiar with the art is in the technical scope of present disclosure, according to the technical scheme of invention and its invention
Design is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710268377.9A CN107588422A (en) | 2017-04-22 | 2017-04-22 | A kind of heat-storage catalytic pyrolysis and combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710268377.9A CN107588422A (en) | 2017-04-22 | 2017-04-22 | A kind of heat-storage catalytic pyrolysis and combustion device |
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| Publication Number | Publication Date |
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| CN107588422A true CN107588422A (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710268377.9A Pending CN107588422A (en) | 2017-04-22 | 2017-04-22 | A kind of heat-storage catalytic pyrolysis and combustion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681885A (en) * | 2019-01-30 | 2019-04-26 | 重庆世银科技有限公司 | A kind of self- propagating pyrolysis system applied to fixed-end forces |
| CN113045363A (en) * | 2021-02-08 | 2021-06-29 | 杭州三得农业科技有限公司 | Medium blocking temperature field hearth and use method thereof |
-
2017
- 2017-04-22 CN CN201710268377.9A patent/CN107588422A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681885A (en) * | 2019-01-30 | 2019-04-26 | 重庆世银科技有限公司 | A kind of self- propagating pyrolysis system applied to fixed-end forces |
| CN109681885B (en) * | 2019-01-30 | 2024-02-27 | 重庆世银科技有限公司 | Self-propagating pyrolysis system applied to solid waste treatment |
| CN113045363A (en) * | 2021-02-08 | 2021-06-29 | 杭州三得农业科技有限公司 | Medium blocking temperature field hearth and use method thereof |
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Application publication date: 20180116 |