CN106468432A - Prevent the refuse pyrolysis plant of method that refuse pyrolysis block and its use - Google Patents
Prevent the refuse pyrolysis plant of method that refuse pyrolysis block and its use Download PDFInfo
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- CN106468432A CN106468432A CN201510518454.2A CN201510518454A CN106468432A CN 106468432 A CN106468432 A CN 106468432A CN 201510518454 A CN201510518454 A CN 201510518454A CN 106468432 A CN106468432 A CN 106468432A
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Abstract
The invention discloses the refuse pyrolysis plant of a kind of method preventing refuse pyrolysis from blocking and its use.In order to overcome conventional garbage pyrolysis easily block, generate two English, the deficiencies such as construction, operation, maintenance cost height, the present invention makes rubbish pyrolysis screening in row motion, carry out solid phase pyrolysis in the lower section of rubbish row motion, carry out vapour-phase pyrolysis above rubbish transverse movement, the refuse pyrolysis plant being used has screening mechanism, is provided with least two solid phase pyrolysis chambers in the lower section of described screening mechanism, is provided with vapour-phase pyrolysis room above described screening mechanism.The present invention is used for garbage disposal, it is prevented from refuse pyrolysis and blocks, realize automatically rubbish being sieved in burning process simultaneously, carry out the classification progressive pyrolysis of locellus, pyrolysis is abundant, energy-conservation, two English can be better protected from generate, and space availability ratio is high, takes up an area few, construction investment can be reduced, operation expense is low, and the effect efficiency of garbage disposal is more preferable.
Description
Technical field
The present invention relates to the refuse pyrolysis plant of a kind of method preventing refuse pyrolysis from blocking and its use.
Background technology
Refuse pyrolysis are the widely used garbage disposal means of developed country, and in the country that the arable land such as Japan is in great shortage, waste incineration pyrolysis processing ratio reaches 65-80%.But conventional garbage burns pyrolysis treatment device and has the following disadvantages：
One is, conventional garbage method for pyrolysis is susceptible to pyrolysis and blocks.The blocking of pyrolytic process, not only increase maintenance and operating cost, and make the state change of pyrolysis, the control that impact burning process leading portion suppression two English generates, increase difficulty and the expense that follow-up two English are processed, increased follow-up gas cleaning and remove the probability that two English class materials cause secondary pollution.
Two are, conventional garbage pyrolysis installation does not enable automatically rubbish to be sieved in burning process simultaneously, carry out progressive pyrolysis of classifying, to be better protected from the generation of two English.In conventional garbage mixture, containing the Multiple components such as life Organic substance and plastics, glass, ceramics, metal, cement block, before burning, classification intractability is big, high cost, so how directly to enter stove using garbage mixture burning.But garbage mixture does not sieve directly to enter stove and burn the problem brought, incineration temperature is difficult to adapt to the organic waste easily producing two English simultaneously and easily causes the inorganic refuse blocking, affecting burning state and deslagging.
Two are, existing pyrolysis installation technological process and mechanism unit extend for row, the gaseous substance of the easy ascension such as the dampness of refuse pyrolysis process generation, flue gas, need relatively high power air-introduced machine just can be allowed to row move into next step process, especially easily produce two English Organic substance tentatively pyrogenous origin can hot gas, second-time burning is processed further, and power consumption is high, processes the pyrolysis effect being difficult to fully prevent two English generations undesirable；And mechanism unit row extends, floor space is big, and one-time investment is big.Build mark 142-2009 regulation, " the newly-built grate furnace incineration plant main equipment and system investment estimate based on import can by not higher than 500,000 yuan/（t/d）Control；Grate furnace incineration plant main equipment all production domesticization investment estimate can by not higher than 400,000 yuan/（t/d）Control；The indices for investment estimate of newly-built fluid bed furnace incineration plant can by not higher than 350,000 yuan/（t/d）Control ".In this regard, the investment capacity not having advanced economy basic and powerful is difficult to build up.
Three are, conventional garbage burns pyrolysis installation needs supplementary energy many, and the utilization efficiency of the heat that waste incineration itself produces is not high enough, leads to waste incineration high cost.And, conventional garbage incinerator has higher requirement to refuse thermal value and moisture.CJ/T 118-2000 specifies, " enter the average annual moisture of stove house refuse and be not preferably greater than 50%, average annual content of ashes is not preferably greater than 30%, average annual low heat valve is not preferably less than 4.18MJ/kg ".For ensureing stable burning,《Domestic refuse treatment project technical regulation》Regulation, " incinerator should configure start-up burner and auxiliary burner ", need to expend substantial amounts of auxiliary fuel.
The deficiency of conventional garbage pyrolysis installation, significantly limit the popularization and application in China for the waste incineration pyrolysis, especially in the application of small and medium-sized cities.
Although some domestic entity and individual are devoted to the research of waste incineration pyrolysis installation always, try hard to overcome existing deficiency.Such as document CN201410085904.9, discloses on the basis of conventional garbage electricity generation system, has added pretreatment system, flue gas treating system, and percolation liquid treating system, has done good try in terms of reducing the generation of two English presomas；Document CN201320090207.3, disclose using oxygen-enriched combusting equipment and secondary air system, to ensure incinerator waste gas burning temperature to greatest extent, make to be conducive to the flow-disturbing of secondary combustion chamber, extend in the secondary combustion chamber time of staying, achieve certain effect decomposing two Britain side faces.But these technology all can not prevent pyrolysis from blocking it is impossible to rubbish is carried out in pyrolysis with automatic sieving, carry out the progressive pyrolysis of classification locellus it is impossible to be better protected from the generation of two English, practicality is not strong, and pyrolysis effect efficiency remains to be further improved raising.
Content of the invention
The purpose of the present invention is aiming at above-mentioned deficiency, there is provided the refuse pyrolysis plant of a kind of method preventing refuse pyrolysis from blocking and its use, it is prevented from refuse pyrolysis and blocks, realize automatically rubbish being sieved in burning process simultaneously, carry out the classification progressive pyrolysis of locellus, pyrolysis is abundant, energy-conservation, the environment-friendly garbage pyrolysis that prevent two English from generating can be better achieved, and space availability ratio is high, take up an area few, construction investment can be reduced, operation expense is low, the effect efficiency of garbage disposal is more preferable.
For reaching above-mentioned purpose, the technical scheme is that, this prevents the method that refuse pyrolysis block from being：
A. make rubbish row motion in refuse pyrolysis plant, the motion of this row carries out pyrolysis screening；
B. the lower section in the motion of rubbish row carries out the solid phase pyrolysis of rubbish, carries out the vapour-phase pyrolysis of rubbish above rubbish transverse movement.
The present invention prevents the refuse pyrolysis plant used by the method that refuse pyrolysis block, including the cavity with garbage inlet, it is provided with the screening mechanism receiving rubbish in described cavity, this screening mechanism has at least two lateral separations and arranges homodromous sieve roller, it is provided with least two solid phase pyrolysis chambers in the lower section of described screening mechanism, it is provided with vapour-phase pyrolysis room above described screening mechanism, described screening mechanism, solid phase pyrolysis chamber, vapour-phase pyrolysis room are respectively provided with hot-air conveying mechanism.
Described each solid phase pyrolysis chamber has interconnective skew wall, described each solid phase pyrolysis chamber has burning chamber, wind chamber, lime-ash passage, described wind chamber is connected with burning chamber by the air channel of interbed, described lime-ash channel connection burning chamber passes through interbed, wind chamber, it is provided with lug in the lime-ash passage perisporium by wind chamber, described wind chamber is connected with hot-air conveying mechanism.
Described vapour-phase pyrolysis room has DL lumen, all chambeies of calming the anger, the upper and lower side of described DL lumen has opening, described DL lumen passes through calming the anger passage and connecting with all chambeies of calming the anger of its perisporium, the perisporium that described passage of calming the anger is cut sth. askew by DL lumen, described all chambeies of calming the anger are connected with hot-air conveying mechanism.
Be provided with moisture passages between garbage inlet and vapour-phase pyrolysis room, be provided with mixed gas passage above described vapour-phase pyrolysis room, described moisture passages, vapour-phase pyrolysis room respectively with mixed gas channel connection, described mixed gas passage connected with Hun Qi pyrolysis chamber.
Between described moisture passages and vapour-phase pyrolysis room being arranged below guiding every.
The present invention is compared with prior-art devices, and the present invention makes rubbish row motion in refuse pyrolysis plant（Existing make that rubbish is directly lower to be pyrolyzed）, pyrolysis screening in the motion of this row；In the motion of rubbish row, carry out preliminary pyrolysis, drying, capacity reducing, progressive screening, the lower section that the lower rubbish solid formation of sieve move in rubbish row carries out solid phase pyrolysis, and rubbish in row moves and is pyrolyzed and the pyrogenous origin gas gas-phase objects of solid phase, carries out vapour-phase pyrolysis above rubbish transverse movement.This progressive at the volley pyrolysis, screening, and then locellus pyrolysis, are prevented from pyrolysis and block；And because progressive motion pyrolysis screening, locellus pyrolysis have the hot-air conveying mechanism that can supply different temperatures, can locellus classification be pyrolyzed, the generation of two English in being better protected from being pyrolyzed.
The present invention is provided with the screening mechanism receiving rubbish in described cavity, this screening mechanism has at least two lateral separations and arranges homodromous sieve roller, it is provided with least two solid phase pyrolysis chambers in the lower section of described screening mechanism, it is provided with vapour-phase pyrolysis room above described screening mechanism, described screening mechanism, solid phase pyrolysis chamber, vapour-phase pyrolysis room are respectively provided with hot-air conveying mechanism.
Described screening mechanism can be spaced homodromous sieve roller and hot-air conveying mechanism with some rows, realizes the motion pyrolysis screening of rubbish row, can be directed respectively into the hot-air of different temperatures on demand in screening mechanism, vapour-phase pyrolysis room, solid phase pyrolysis chamber.When rubbish is from the sieve roller that garbage inlet enters screening mechanism one end or one side, will orient and advance towards the other end of screening mechanism or another side, the various composition in rubbish realizes progressive pyrolysis, the capacity reducing of different section different temperatures in screening mechanism traveling（Reduce volume）, screening, Cucumber in rubbish will pass through to sieve to be spaced the solid phase pyrolysis chamber falling under screening mechanism between roller in traveling, carry out the pyrolysis of different temperatures further, the meeting ascensions upwards such as water smoke flue gas that rubbish produces in screening mechanism, the pyrolysis of solid phase pyrolysis chamber, enter the vapour-phase pyrolysis room above screening mechanism and are pyrolyzed further.So, in traveling, screening classification is pyrolyzed respectively, not only prevent pyrolysis to block, and due to entering the preliminary pyrolysis capacity reducing stage of screening mechanism in rubbish, less than 300 DEG C of hot-air can be supplied on demand, the rubbish entering pyrolysis cavity is carried out first preheating, is dried, capacity reducing, preliminary be pyrolyzed, make the Organic substance of generation two English not generated the combustible organic of pyrolytic gasification non-two English of generation of two English at these temperatures（Test shows, easily generates the Organic substance of two English in rubbish, can be with pyrolytic gasification for the combustible organic of non-two English in 300 DEG C of temperature below）This combustible organic and then be directed to vapour-phase pyrolysis room above screening mechanism etc., with 300 600 DEG C of hot-air mixing second-time burning, just can completely pyrolitic oxidation and do not generate two English, do not produce the secondary pollution of pyrolysis, the generation of two English class materials is thus prevented from source, rather than as existing dependence makes two English class material qualified discharges to incineration flue gas.
Vapour-phase pyrolysis room of the present invention DL lumen under shed enter flue gas, after mixing with the hot-air from the higher temperature that all chambeies of calming the anger enter, form whirlwind and mix combustion, rotation rising combustion is pyrolyzed further, in the presence of air-introduced machine, can preferably be formed and squeeze spray rotation, ascension burning, makes pyrolysis more abundant upwards, no dead angle, more preferably prevent two English from generating, energy consumption is low, and effect is good.
The present invention is provided with moisture passages between garbage inlet and vapour-phase pyrolysis room, it is provided with mixed gas passage above described vapour-phase pyrolysis room, described moisture passages, vapour-phase pyrolysis room respectively with mixed gas channel connection, described mixed gas passage is connected with Hun Qi pyrolysis chamber, between described moisture passages and vapour-phase pyrolysis room being arranged below guiding every.Gaseous substance so can be made preferably to classify the progressive pyrolysis of locellus, be preferably fully pyrolyzed, prevent the generation of two English.
Solid phase pyrolysis chamber of the present invention has interconnective skew wall, and described wind chamber is connected with burning chamber by the air channel of interbed, and described lime-ash channel connection burning chamber passes through interbed, wind chamber, is provided with lug in the lime-ash passage perisporium by wind chamber.Solid matter classification locellus so can be better achieved be pyrolyzed under fluidized state, and the heat energy being pyrolyzed can fully add hot air cavity by lime-ash passage, make the wind that air channel sprays preferably meet the requirement of temperature, pressure, make fluidized state more preferably, make pyrolysis more energy efficient.
The present invention is used for garbage disposal, it is prevented from refuse pyrolysis and blocks, realize automatically rubbish being sieved in burning process simultaneously, carry out the classification progressive pyrolysis of locellus, pyrolysis is abundant, energy-conservation, two English can be better protected from generate, and space availability ratio is high, takes up an area few, construction investment can be reduced, operation expense is low, and the effect efficiency of garbage disposal is more preferable.
Brief description
Fig. 1 is the sectional view of refuse pyrolysis plant of the present invention.
In figure, 1. cavity, 2. Hun Qi pyrolysis chamber, 3. vapour-phase pyrolysis room, 4. mixes gas passage, 5. moisture passages, 6. DL lumen, all chambeies of 7. calming the anger, 8. guiding every, 9. garbage inlet, 10. screening mechanism, 11. burning chamber, 12. interbeds, 13. wind chambeies, 14. lime-ash passages, 15. solid phase pyrolysis chambers, 16. lugs.
Specific embodiment
Taking house refuse as a example, the present invention prevents the method that refuse pyrolysis block from being：
A. make rubbish row motion in refuse pyrolysis plant, the motion of this row carries out pyrolysis screening；
B. the lower section in the motion of rubbish row carries out the solid phase pyrolysis of rubbish, carries out the vapour-phase pyrolysis of rubbish above rubbish transverse movement.
As shown in figure 1, the present invention prevents the refuse pyrolysis plant used by the method that refuse pyrolysis block, including the cavity 1 with garbage inlet 9, it is provided with, in described cavity 1, the screening mechanism 10 receiving garbage inlet rubbish, it is horizontal that this screening mechanism 10 has at least two（Towards Fig. 1 from left to right）It is spaced homodromous sieve roller, it is provided with least three solid phase pyrolysis chambers 15 in the lower section of described screening mechanism 10, it is provided with vapour-phase pyrolysis room 3 above described screening mechanism 10, described screening mechanism 10, solid phase pyrolysis chamber 15, vapour-phase pyrolysis room 3 are respectively provided with hot-air conveying mechanism.
Described each solid phase pyrolysis chamber 15 has interconnective skew wall, described each solid phase pyrolysis chamber 15 has burning chamber 11, wind chamber 13, lime-ash passage 14, described wind chamber 13 is connected with burning chamber 11 by the air channel of interbed 12, described lime-ash passage 14 connection burning chamber 11 passes through interbed 12, wind chamber 13, it is provided with lug 16 in the lime-ash passage perisporium by wind chamber 13, described wind chamber 13 is connected with hot-air conveying mechanism.
Described vapour-phase pyrolysis room 3 has DL lumen 6, all chambeies 7 of calming the anger, the upper and lower side of described DL lumen 6 has opening, described DL lumen 6 passes through calming the anger passage and connecting with all chambeies 7 of calming the anger of its perisporium, the perisporium that described passage of calming the anger is cut sth. askew by DL lumen, described all chambeies 7 of calming the anger are connected with hot-air conveying mechanism.
It is provided with moisture passages 5 between the side wall of setting garbage inlet 9 and vapour-phase pyrolysis room 3, it is provided with mixed gas passage 4 above described vapour-phase pyrolysis room 3, described moisture passages 5, vapour-phase pyrolysis room 3 are connected with mixed gas passage 4 respectively, described mixed gas passage 4 is connected with Hun Qi pyrolysis chamber 2, further, Hun Qi pyrolysis chamber can be connected with heat exchange mechanism, purification mechanism etc..
Side wall between described moisture passages 5 and vapour-phase pyrolysis room 3 is arranged below and guides every 8.
Further, the sieve roller of screening mechanism of the present invention can be connected with actuating unit, this actuating unit can be connected with control device, can realize automatically adjusting on demand speed and the dynamics that sieve roller rotates, so can improve under the conditions of 300 DEG C of temperature below to the effect of preliminary pyrolysis and the efficiency entering chamber garbage pre-heating, drying and do not generate two English.
Further, the interval that the present invention respectively sieves between roller can be adjusted, and so can improve adaptability.
Claims (6)
1. a kind of method preventing refuse pyrolysis from blocking, is characterized in that：
A. make rubbish row motion in refuse pyrolysis plant, the motion of this row carries out pyrolysis screening；
B. the lower section in the motion of rubbish row carries out the solid phase pyrolysis of rubbish, carries out the vapour-phase pyrolysis of rubbish above rubbish transverse movement.
2. the refuse pyrolysis plant used by the method preventing refuse pyrolysis from blocking according to claim 1, including having garbage inlet（9）Cavity（1）, it is characterized in that, in described cavity（1）It is provided with the screening mechanism receiving rubbish（10）, this screening mechanism（10）There are at least two lateral separations and arrange homodromous sieve roller, in described screening mechanism（10）Lower section be provided with least two solid phase pyrolysis chambers（15）, in described screening mechanism（10）Top be provided with vapour-phase pyrolysis room（3）, described screening mechanism（10）, solid phase pyrolysis chamber（15）, vapour-phase pyrolysis room（3）It is respectively provided with hot-air conveying mechanism.
3. refuse pyrolysis plant according to claim 2, is characterized in that, described each solid phase pyrolysis chamber（15）There is interconnective skew wall, described each solid phase pyrolysis chamber（15）There is burning chamber（11）, wind chamber（13）, lime-ash passage（14）, described wind chamber（13）By interbed（12）Air channel and burning chamber（11）Connection, described lime-ash passage（14）Connection burning chamber（11）Through interbed（12）, wind chamber（13）, by wind chamber（13）Lime-ash passage perisporium be provided with lug（16）, described wind chamber（13）It is connected with hot-air conveying mechanism.
4. refuse pyrolysis plant according to claim 2, is characterized in that, described vapour-phase pyrolysis room（3）There is DL lumen（6）, all chambeies of calming the anger（7）, described DL lumen（6）Upper and lower side there is opening, described DL lumen（6）Passage calmed the anger and all chambeies of calming the anger by its perisporium（7）Connection, the perisporium that described passage of calming the anger is cut sth. askew by DL lumen, described all chambeies of calming the anger（7）It is connected with hot-air conveying mechanism.
5. refuse pyrolysis plant according to claim 2, is characterized in that, in garbage inlet（9）With vapour-phase pyrolysis room（3）Between be provided with moisture passages（5）, in described vapour-phase pyrolysis room（3）Top be provided with mixed gas passage（4）, described moisture passages（5）, vapour-phase pyrolysis room（3）Respectively with mixed gas passage（4）Connection, described mixed gas passage（4）With Hun Qi pyrolysis chamber（2）Connection.
6. refuse pyrolysis plant according to claim 5, is characterized in that, in described moisture passages（5）With vapour-phase pyrolysis room（3）Between be arranged below guiding every（8）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510518454.2A CN106468432B (en) | 2015-08-22 | 2015-08-22 | Method for preventing garbage pyrolysis from blocking and garbage pyrolysis device used by same |
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| CN201510518454.2A CN106468432B (en) | 2015-08-22 | 2015-08-22 | Method for preventing garbage pyrolysis from blocking and garbage pyrolysis device used by same |
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| CN106468432A true CN106468432A (en) | 2017-03-01 |
| CN106468432B CN106468432B (en) | 2020-07-10 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043710U (en) * | 1989-03-09 | 1989-08-30 | 崔克勤 | Helical propelling continuous incinerator of refuse |
| CN1687646A (en) * | 2005-05-21 | 2005-10-26 | 郭炜明 | Thermal cracking gasification oven for city domestic garbage |
| CN101532667A (en) * | 2008-12-25 | 2009-09-16 | 张圣东 | Efficient burning furnace with rotary fluidization grate |
| CN201325770Y (en) * | 2008-12-25 | 2009-10-14 | 张圣东 | Roller tooth type conveying mechanism |
| CN201513894U (en) * | 2009-03-30 | 2010-06-23 | 丁宝太 | Combined-type flue gas device for dangerous waste pyrolysis |
| CN204534595U (en) * | 2014-12-30 | 2015-08-05 | 湖南金卫环保设备科技有限公司 | The progressive classification pyrolysis installation of the rubbish preventing bioxin from generating |
-
2015
- 2015-08-22 CN CN201510518454.2A patent/CN106468432B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043710U (en) * | 1989-03-09 | 1989-08-30 | 崔克勤 | Helical propelling continuous incinerator of refuse |
| CN1687646A (en) * | 2005-05-21 | 2005-10-26 | 郭炜明 | Thermal cracking gasification oven for city domestic garbage |
| CN101532667A (en) * | 2008-12-25 | 2009-09-16 | 张圣东 | Efficient burning furnace with rotary fluidization grate |
| CN201325770Y (en) * | 2008-12-25 | 2009-10-14 | 张圣东 | Roller tooth type conveying mechanism |
| CN201513894U (en) * | 2009-03-30 | 2010-06-23 | 丁宝太 | Combined-type flue gas device for dangerous waste pyrolysis |
| CN204534595U (en) * | 2014-12-30 | 2015-08-05 | 湖南金卫环保设备科技有限公司 | The progressive classification pyrolysis installation of the rubbish preventing bioxin from generating |
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| CN106468432B (en) | 2020-07-10 |
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