CN105110795B - A kind of garbage pyrolysis furnace revolving bed nonmetallic charging tray and preparation method thereof - Google Patents
A kind of garbage pyrolysis furnace revolving bed nonmetallic charging tray and preparation method thereof Download PDFInfo
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- CN105110795B CN105110795B CN201510376035.XA CN201510376035A CN105110795B CN 105110795 B CN105110795 B CN 105110795B CN 201510376035 A CN201510376035 A CN 201510376035A CN 105110795 B CN105110795 B CN 105110795B
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- charging tray
- pyrolysis furnace
- revolving bed
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Abstract
The invention discloses a kind of garbage pyrolysis furnace revolving bed with nonmetallic charging tray, it is characterized in that the charging tray includes inorganic powder and additive, inorganic powder includes the component of following weight proportion：Carborundum 60%~70%, silica flour 10%~30%, silicon nitride 5%~10%, alumina powder 2%~8%, silica 2%~5%, calcium oxide 1.0%~2.5%, boron nitride 1.0%~2.5%.The performances such as the present invention realizes when garbage pyrolysis furnace revolving bed handles rubbish at high temperature the burn into erosive wear resistant of acid impurities in the resistance to rubbish of charging tray, thermal shock resistance is strong, heat conductivility is good, the coefficient of expansion is small, in light weight and energy consumption is small, the service life of garbage pyrolysis furnace revolving bed is ensure that, avoids a series of problems caused by garbage pyrolysis furnace revolving bed charging tray craze and transfiguration, corrosion and abrasion etc..
Description
Technical field
The present invention relates to garbage pyrolysis furnace, particularly a kind of garbage pyrolysis furnace revolving bed high intensity, wear-resistant, resistance to height
Warm, corrosion-resistant, good heat conductivity, thermal shock resistance are strong, the garbage pyrolysis furnace revolving bed of light weight and service life length is with nonmetallic
Charging tray and preparation method thereof.
Background technology
Urban garbage disposal is one of main Environmental Problems that our times various countries face, and China protrudes at present
Environmental problem.With the fast development of China's economy, the substantial increase of urban population, city size expand day by day and the people
The continuous improvement of living standard, Output of Domestic Waste increase year by year, are inevitably generated substantial amounts of garbage emission.Nineteen ninety-five
After, domestic waste year amount of clearing in China's is increased more than 100,000,000 tons with annual 3% or so speed.Such as to rubbish
Deal with improperly, it will huge harm is caused to environment；Land occupation, contaminated soil, polluted underground water resource, influence air
Quality, pollution air, spread disease, influence environmental sanitation and residents ' health etc..Innoxious, recycling treatment house refuse is city
City's urgent problem to be solved.
It is presently used for handling the main method of house refuse to burn, but rubbish produces secondary pollution in burning disposal
Problem is serious, and especially bioxin pollution problem is difficult thoroughly to solve.Garbage pyrolysis furnace is intended to obtain refuse pyrolysis processing
Liquid, gas and the solid fuel of high heating value, become soot as " efficiency oil, gas, coalfield ", compared to other processing methods, advantage
It is：Substantially produced Wu bioxin, sour gas yield is seldom, can obtain the high heating value energy for being easy to store, transport, utilize
Source, the flue dust of processing procedure discharge is few, and the nuisance such as sulphur and heavy metal largely solidifies, and will not be discharged into air.Conventional rubbish burns
It is heat resisting cast steel to burn stove with charging tray, but in actual waste incineration application, by being used at a high temperature of long-time, it is easily by rubbish
Caused acidic materials are corroded in heating process, and price is higher, and charging tray own wt is big, and crossbeam supporting power is high, kinetic force
Consumption increases, and greatly affected its performance.
The content of the invention
The shortcomings that it is an object of the invention to overcome above-mentioned prior art and a kind of garbage pyrolysis furnace revolving bed is provided
Nonmetallic charging tray, the charging tray can ensure there is high intensity when handling rubbish at high temperature, and heat conductivility is good, inoxidizability
It is good, the corrosion of various acid impurities in resistance to rubbish, and light weight, power consumption are small, and it is moderate, improve charging tray service life
While reduce Master Cost and energy consumption.
Another object of the present invention is to provide a kind of garbage pyrolysis furnace revolving bed with nonmetallic charging tray preparation method.
The purpose of the present invention is achieved by the following technical solution：
The nonmetallic charging tray of the present invention, the charging tray include inorganic powder and additive, the additive including organic binder bond,
Plasticizer and NMF, by 100 parts of listed as parts by weight of inorganic powder, wherein organic binder bond is 3.0~5.0 parts by weight, plasticising
Agent and NMF are 1.0~3.0 parts by weight, and the inorganic powder includes the component of following weight proportion：Carborundum 60%~70%,
Silica flour 10%~30%, silicon nitride 5%~10%, alumina powder 2%~8%, silica 2%~5%, calcium oxide 1.0%~2.5%,
Boron nitride 1.0%~2.5%.
Preferably, the organic binder bond can be methylcellulose, it is hydroxyethyl cellulose, cyanethyl cellulose, poly-
The composition of vinyl alcohol, it combines ratio 2:1:1.
Preferably, the plasticizer is PEO, the composition of polyethylene glycol oxide, it combines ratio 1:1.
Preferably, the NMF is one kind in polyethylene glycol 400, polyethylene glycol 1500, glycerine.
Preferably, the additive also includes the water as solvent.
A kind of garbage pyrolysis furnace revolving bed preparation method of nonmetallic charging tray, comprises the following steps：
1. after nonmetallic charging tray inorganic powder and binding agent, plasticizer and NMF solid material premix, it is put into mixed
Add water in mill while stirring, mixing time is more than 15min, and it is standby to be kneaded into the pug that pug moisture content is 5%~8%；
2. pug on vacuum deairing machine just practice, pug mill vacuum >=-0.08MPa when just practicing, practice into closely knit
Pug block；
3. it is old to be carried out in 3 DEG C of ageing silo that pug block is placed in into environment, old time 5h, pug block is placed in ring
Old, old time 24h is carried out in the ageing silo that border is 20~25 DEG C, is then 600~800 through vacuum refining, in pressure
kgf/cm2The charging tray base substrate of specification needed for being pressed into；
4. by the charging tray base substrate after shaping stifling 2 hours first using steam, can pre- Anti-cracking produce, be then placed in
Micro-wave oven, microwave drying 15 minutes, it is re-fed into and is sent into hothouse, be to slowly warm up at 105 DEG C, heated-air drying 22h, be cooled to
It is stored at room temperature 10 hours, is to slowly warm up to dry 32h at 110 DEG C again；
5 are burnt till dried charging tray base substrate in room is nitrogenized, and maximum sintering temperature is 1450 DEG C, firing time
Finished product after 96h.
Beneficial effects of the present invention：The carborundum that nonmetallic charging tray use necessarily matches in the present invention, silica flour, silicon nitride,
Alumina powder, silica and calcium oxide after bonding agent adhesion in room is nitrogenized by being burnt till, and carborundum is due to chemistry
Stable performance, thermal conductivity factor are high, thermal coefficient of expansion is small, anti-wear performance is good, to manufactured high grade refractory, resistance to thermal shock, body
Product is small, in light weight and intensity is high, good energy-conserving effect；Silicon nitride is a kind of important structural ceramic material.It is a kind of superhard thing
Matter, itself has lubricity, and wear-resistant；Silica flour can improve the intensity and durability of product；Charging tray can be protected in the present invention
Card has high intensity when handling rubbish at high temperature, and heat conductivility is good, good in oxidation resistance, various acid impurities in resistance to rubbish
Corrosion, and light weight, power consumption is small, moderate, reduced while improving charging tray service life Master Cost and
Energy consumption.
Brief description of the drawings
Fig. 1 be the present invention relates to garbage pyrolysis furnace revolving bed with nonmetallic charging tray main structure diagram.
Fig. 2 be the present invention relates to garbage pyrolysis furnace revolving bed with nonmetallic charging tray left view structural representation.
Embodiment
Technical scheme is described in further detail below by embodiment combination accompanying drawing 1 and accompanying drawing 2,
But embodiment of the present invention not limited to this.
Reference 1 is nonmetallic charging tray body in Fig. 1,2.
Embodiment 1
The nonmetallic charging tray of garbage pyrolysis furnace revolving bed, takes carborundum 60%, silica flour 10%, silicon nitride 15%, oxygen by weight
Change aluminium micro mist 4.0%, silica 3.0%, calcium oxide 1.0% and boron nitride 1.0%, premix as inorganic powder, according to inorganic powder
100 listed as parts by weight additive additions, in additive, organic binder bond ethyl cellulose CMC accounts for 3.5 parts by weight, plasticizer
1-1.5 parts by weight, NMF 1-1.5 parts by weight, water are 6 parts by weight.
During preparation, after the solid material such as inorganic powder and binding agent, plasticizer, NMF premix 2h, it is put into kneading machine
While stirring plus water, mixing time are more than 15min, it is standby to be kneaded into pug；Pug on vacuum deairing machine just practice, just
Pug mill vacuum is -0.08MPa when practicing, and more closely knit pug block is made；Clod is carried out in 20 DEG C of ageing silo old
Corruption, old time 24h, it is then 750kgf/cm through vacuum refining, in pressure2The charging tray of specification needed for being pressed into；After being molded
Charging tray base substrate load onto kiln car, be sent into hothouse, be to slowly warm up to dry 72h at 105 DEG C；Dried charging tray is being nitrogenized
Burnt till in room, maximum sintering temperature is 1450 DEG C, nonmetallic charging tray 1 is made into after firing time 96h, the nonmetallic charging tray
1 overall diameter is 12765mm, interior diameter 7185mm, thickness 20mm.
Embodiment 2
The nonmetallic charging tray of garbage pyrolysis furnace revolving bed, takes carborundum 60%, silica flour 10%, silicon nitride 15%, oxygen by weight
Change aluminium micro mist 4.0%, silica 3.0%, calcium oxide 1.0% and boron nitride 1..5%, premix as inorganic powder, according to inorganic powder
100 listed as parts by weight additive additions, in additive, organic binder bond ethyl cellulose CMC accounts for 3.5 parts by weight, plasticizer
1-1.5 parts by weight, NMF 1-1.5 parts by weight, water are 7 parts by weight.
During preparation, after the solid material such as inorganic powder and binding agent, plasticizer, NMF premix 2h, it is put into kneading machine
While stirring plus water, mixing time are more than 15min, it is standby to be kneaded into pug；Pug on vacuum deairing machine just practice, just
Pug mill vacuum is -0.08MPa when practicing, and more closely knit pug block is made；Clod is carried out in 20 DEG C of ageing silo old
Corruption, old time 24h, it is then 750kgf/cm through vacuum refining, in pressure2The charging tray of specification needed for being pressed into；After being molded
Charging tray base substrate load onto kiln car, be sent into hothouse, be to slowly warm up to dry 72h at 105 DEG C；Dried charging tray is being nitrogenized
Burnt till in room, maximum sintering temperature is 1450 DEG C, nonmetallic charging tray 1 is made into after firing time 96h, the nonmetallic charging tray
1 overall diameter is 12765mm, interior diameter 7185mm, thickness 20mm.
Embodiment 3
Carborundum 63%, silica flour 18%, silicon nitride 6.0%, alumina powder 7.0%, silica 4.0%, oxygen are taken by weight
Change calcium 2.0% and boron nitride 2.5%, premix as inorganic powder, according to the listed as parts by weight additive addition of inorganic powder 100, add
Add in agent, organic binder bond ethyl cellulose CMC accounts for 3.5 parts by weight, plasticizer 1-1.5 parts by weight, NMF 1-1.5 weight
Part, water is 8 parts by weight.
During preparation, after the solid material such as inorganic powder and binding agent, plasticizer, NMF premix 2h, it is put into kneading machine
While stirring plus water, mixing time are more than 15min, it is standby to be kneaded into pug；Pug on vacuum deairing machine just practice, just
Pug mill vacuum is -0.08MPa when practicing, and more closely knit pug block is made；Clod is carried out in 20 DEG C of ageing silo old
Corruption, old time 24h, it is then 750kgf/cm through vacuum refining, in pressure2The charging tray of specification needed for being pressed into；After being molded
Charging tray base substrate load onto kiln car, be sent into hothouse, be to slowly warm up to dry 72h at 105 DEG C；Dried charging tray is being nitrogenized
Burnt till in room, maximum sintering temperature is 1450 DEG C, nonmetallic charging tray 1 is made into after firing time 96h, the nonmetallic charging tray
1 overall diameter is 12765mm, interior diameter 7185mm, thickness 20mm.
In above three examples of implementation, preferably, the organic binder bond be methylcellulose, hydroxyethyl cellulose,
The composition of cyanethyl cellulose, polyvinyl alcohol, it combines ratio 2:1:1.Plasticizer is PEO, the group of polyethylene glycol oxide
Compound, it combines ratio 1:1.NMF is one kind in polyethylene glycol 400, polyethylene glycol 1500, glycerine.
Claims (5)
1. a kind of nonmetallic charging tray of garbage pyrolysis furnace revolving bed, it is characterized in that：The charging tray includes inorganic powder and additive, institute
Stating additive includes organic binder bond, plasticizer and NMF, by 100 parts of listed as parts by weight of inorganic powder, wherein organic adhesive
Agent is 3.0~5.0 parts by weight, and plasticizer and NMF are 1.0~3.0 parts by weight, and the inorganic powder is matched somebody with somebody including following weight
The component of ratio：Carborundum 60%~70%, silica flour 10%~30%, silicon nitride 5%~10%, alumina powder 2%~8%, silica
2%~5%, calcium oxide 1.0%~2.5%, boron nitride 1.0%~2.5%.
2. the nonmetallic charging tray of garbage pyrolysis furnace revolving bed according to claim 1, it is characterised in that：The organic adhesive
Agent can be methylcellulose or hydroxyethyl cellulose, cyanethyl cellulose, the composition of polyvinyl alcohol, and it combines ratio 2:1:1.
3. the nonmetallic charging tray of garbage pyrolysis furnace revolving bed according to claim 1, it is characterised in that：The plasticizer is
The composition of PEO, polyethylene glycol oxide, it combines ratio 1:1.
4. the nonmetallic charging tray of garbage pyrolysis furnace revolving bed according to claim 1, it is characterised in that：The NMF is
One kind in polyethylene glycol 400, polyethylene glycol 1500, glycerine.
5. the nonmetallic charging tray of garbage pyrolysis furnace revolving bed according to claim 1, it is characterised in that：The additive is also
Including the water as solvent.
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| CN105110795B true CN105110795B (en) | 2017-12-05 |
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| CN106045522A (en) * | 2015-06-27 | 2016-10-26 | 湖北神雾热能技术有限公司 | Nonmetal material tray for refuse pyrolysis furnace rotating bed and preparation method thereof |
| CN109824369A (en) * | 2019-03-14 | 2019-05-31 | 郑州安联凯实业有限公司 | High thermal conductivity wearing-proof refractory material and preparation method thereof |
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| DE102012023318A1 (en) * | 2012-11-29 | 2014-06-05 | Refratechnik Holding Gmbh | Use of unfired refractory products as delivery of large volume industrial furnaces and industrial furnaces lined with unfired refractory products |
| CN104291800B (en) * | 2014-08-31 | 2018-01-09 | 湖北神雾热能技术有限公司 | A kind of multifunctional honeycomb ceramic heat storage and preparation method thereof |
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Effective date of registration: 20190604 Address after: 433000 Liukou Industrial Park, Xiantao City, Hubei Province Patentee after: Hubei Qunyouchangwu Environmental Protection Technology Co., Ltd. Address before: 433000 No. 1 Yewang Lute, Liukou Industrial Park, Xiantao City, Hubei Province Patentee before: HUBEI SHENWU THERMAL ENERGY TECHNOLOGY CO., LTD. |
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