CN104119842B - Silicon oxide heat storage ball - Google Patents
Silicon oxide heat storage ball Download PDFInfo
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- CN104119842B CN104119842B CN201410340398.3A CN201410340398A CN104119842B CN 104119842 B CN104119842 B CN 104119842B CN 201410340398 A CN201410340398 A CN 201410340398A CN 104119842 B CN104119842 B CN 104119842B
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- oxide
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- heat
- silicon oxide
- storage ball
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Abstract
The invention discloses a silicon oxide heat storage ball which comprises the following components in percentage by weight: 25-35% of silicon dioxide, 20-30% of silicon carbide, 30-40% of aluminum oxide, 0.3-1% of ferric oxide, 1-3% of calcium oxide, 1.5-3% of magnesium oxide, 0.1-1% of potassium oxide, 0.1-1% of sodium oxide and 0.3-1.2% of titanium dioxide, totaling 100%. The silicon oxide heat storage ball disclosed by the invention has excellent performances of high density, high thermal shock resisting stability and high heat conductivity at the same time, has high strength, high hardness and good resistance to chemical corrosion and meanwhile has a good anti-oxidizing effect, so that the silicon oxide heat storage ball is particularly suitable for situations that the environment is harsh and a heat storage chamber is subjected to severe oxidation corrosion. The service life of the silicon oxide heat storage ball is 5-6 times longer than that of a heat storage body in the prior art.
Description
Technical field
The invention belongs to Regenerative Combustion Technology field, is related to a kind of silicon oxide heat-storing sphere.
Background technology
Regenerative Combustion Technology is current HTAC advanced in the world, and by international burning circle burning is known as
The revolution of technology.The technology is by way of the control of reversal valve is repeated alternate run, to use equipped with heat-storing material
Combustion air is preheating to more than 1000 DEG C by regenerator, the temperature of discharge flue gas is reduced to into less than 200 DEG C, so as to realize flue gas
The limit of waste heat is recycled.It is to save fuel, reduce the characteristics of Regenerative Combustion Technology is maximum compared with traditional combustion process
Combustion noise, therefore also it is described as one of key technology of 21 century.Japan has 50 Yu Jia enterprises to fire using accumulation of heat within 1998
Burning technology transforms industrial furnace, and average energy-saving effect has reached 35%.At present, Japanese industry circle is ready for the popularization and application skill
Art is as 21 century energy-conservation and improves one of vital task of environment.Regenerative Combustion Technology has also been obtained quickly in China in recent years
Development, according to incompletely statistics, China existing over one hundred industrial furnace successful Application technology so far, involved industry
Stove species is also more, and the heating furnace of particularly the 30 of iron and steel enterprise～800,000 t has major part using the technology, and achieves
Good economic benefit, heat recovery rate is all up 80%～90%, and energy-saving effect has reached 30%～40%.
But, all there is the insufficient, harmful substance that burns and produce in either heat-accumulation combustion mode, or traditional combustion system
Problem, especially relate to the combustion process of large scale industry stove.With the deterioration and global warming of environment, National Environmental is protected
Shield policy it is further strict, the purified treatment of the flue gas of combustion process is imperative.Develop the burning of environment-protecting clean simultaneously
Technology is also the needs of current energy-saving and emission-reduction.
Therefore, in this context, we have proposed a kind of oxygen for Regenerative Combustion Technology with function of fuel gas purification
SiClx heat-storing sphere.
The content of the invention
The technical problem to be solved is exactly to reduce that burning in combustion process is insufficient, harmful substance is produced,
A kind of silicon oxide heat-storing sphere provided so as to develop the combustion technology of environment-protecting clean.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of silicon oxide heat-storing sphere, including with the following group
Point, each component percentage by weight is：
Generally, honeycomb ceramics long-term work is in rapid heat cycle, the adverse circumstances possibly also with corrosive gas,
The stress that Jing often bears high temperature and inside and outside difference variation and causes.This working environment proposes severe to accumulation of heat ball material
Carve and require.In order to increase amount of stored heat, reduce the volume of regenerator, need the density for increasing heat-storing sphere.But heat-resistant knocking stability with
Density is mutually exclusive to a certain extent, i.e., density is higher, and heat-resistant knocking stability is poorer.In use, heat-storing sphere and gas
Stream carries out heat exchange, and some have a negative impact with mordant gas and granule to honeycomb ceramics.Such as, ferric oxide particles meeting
The reflowing temperature of drop low aluminum silicon material, makes honeycomb ceramics melt and block pore；Sour gas can produce corrosiveness to honeycomb ceramics；
Molecule can be attached to honeycomb skin and block gas passage etc..
The present invention adds silicon dioxide, the density of heat-storing sphere is adjusted, while the anti-thermal shock of heat-storing sphere can be improved
Stability, coordinates a small amount of titanium dioxide, obtains the heat-storing sphere of excellent performance, and its matter density is big, unit weight is little, can increase accumulation of heat
Amount, reduces accumulation of heat building volume；Product strength is high, adapts to the carriage requirement of larger regenerator under high temperature；Expand when product is heated
Uniformly, good thermal shock stability, load softening point is high.A small amount of calcium oxide, magnesium oxide, potassium oxide, sodium oxide are it is possible to additionally incorporate, storage is made
Hot-bulb hardness is big, and resistance to chemical corrosion is good, while having good antioxidation, coordinates the high heat conductance of ferrum oxide, especially
Suitable for the more serious occasion of bad environments, regenerator oxide etch, its service life is longer than the heat storage of prior art by 5～
6 times.
Preferably, each component percentage by weight is：
Preferably, each component percentage by weight is：
When the percentage by weight of calcium oxide and magnesium oxide is 1:1, and be 3 with the percentage by weight of titanium dioxide:When 1,
Uniform, load softening point is expanded when heat-storing sphere is heated high.
Preferably, each component percentage by weight is：
When the percentage by weight of carborundum and aluminium oxide is 1:When 1, heat-resistant knocking stability can simultaneously reach one with density
The individual high point for more balancing, and be unlikely to the especially low situation of one of which, but due to the silicon dioxide for adding it is on the high side so that
The fragility increase of heat-storing sphere, thermal conductivity is relatively low, but still increases than prior art.
Preferably, each component percentage by weight is：
When the addition of calcium oxide and magnesium oxide is more, the resistance to chemical corrosion and antioxidation of heat-storing sphere are significantly carried
Height, is particularly well-suited to the more serious occasion of bad environments, regenerator oxide etch.
Preferably, each component percentage by weight is：
Preferably, each component percentage by weight is：
When content of titanium dioxide is more, than more uniform, the heat-storing sphere performance for obtaining is more stable, combination property for each component
It is remarkably improved.
Compared with prior art, it is an advantage of the invention that：Can simultaneously obtain that density is big, heat-resistant knocking stability is high, thermal conductivity
The high excellent properties of rate, and with intensity it is high, hardness is big, resistance to chemical corrosion is good, while have good antioxidation,
It is particularly well-suited to the more serious occasion of bad environments, regenerator oxide etch, heat storage of its service life than prior art
It is long 5～6 times.
With reference to specific embodiment, the invention will be further described：
Specific embodiment
A kind of silicon oxide heat-storing sphere embodiment 1 of the present invention, including following components, each component percentage by weight is：
A kind of silicon oxide heat-storing sphere embodiment 2 of the present invention, including following components, each component percentage by weight is：
A kind of silicon oxide heat-storing sphere embodiment 3 of the present invention, including following components, each component percentage by weight is：
A kind of silicon oxide heat-storing sphere embodiment 4 of the present invention, including following components, each component percentage by weight is：
A kind of silicon oxide heat-storing sphere embodiment 5 of the present invention, including following components, each component percentage by weight is：
Density, comprcssive strength, high-temerature creep value, the loading softening of the silicon oxide heat-storing sphere product that embodiment 1～5 is obtained
Point, heat conductivity etc. are detected that, while be compared with the prior art example being compared, testing result is as shown in table 1.
Table 1
Test result shows that the silicon oxide heat-storing sphere product that the embodiment of the present invention 1～4 is obtained is substantially than prior art
Heat-storing sphere excellent performance, can simultaneously obtain that density is big, heat-resistant knocking stability is high, the excellent properties that thermal conductivity is high.In addition, this
Bright silicon oxide heat-storing sphere has that intensity is high, hardness is big, resistance to chemical corrosion is good, while there is good antioxidation, it is special
Not Shi Yongyu the more serious occasion of bad environments, regenerator oxide etch, its service life is longer than the heat storage of prior art by 5
～6 times.
The specific embodiment of the present invention is the foregoing is only, but the technical characteristic of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the present invention by the change or modification made.
Claims (7)
1. a kind of silicon oxide heat-storing sphere, it is characterised in that：Including following components, each component percentage by weight is：
2. a kind of silicon oxide heat-storing sphere as claimed in claim 1, it is characterised in that：Each component percentage by weight is：
3. a kind of silicon oxide heat-storing sphere as claimed in claim 1, it is characterised in that：Each component percentage by weight is：
4. a kind of silicon oxide heat-storing sphere as claimed in claim 1, it is characterised in that：Each component percentage by weight is：
5. a kind of silicon oxide heat-storing sphere as claimed in claim 1, it is characterised in that：Each component percentage by weight is：
6. a kind of silicon oxide heat-storing sphere as claimed in claim 1, it is characterised in that：Each component percentage by weight is：
7. a kind of silicon oxide heat-storing sphere as claimed in claim 1, it is characterised in that：Each component percentage by weight is：
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410340398.3A CN104119842B (en) | 2014-07-17 | 2014-07-17 | Silicon oxide heat storage ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410340398.3A CN104119842B (en) | 2014-07-17 | 2014-07-17 | Silicon oxide heat storage ball |
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| CN104119842A CN104119842A (en) | 2014-10-29 |
| CN104119842B true CN104119842B (en) | 2017-05-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104610928A (en) * | 2015-02-02 | 2015-05-13 | 孙建林 | Preparation method of heat storage material of solar water tank |
| CN104596135A (en) * | 2015-02-02 | 2015-05-06 | 孙建林 | Solar water tank |
| CN109879670A (en) * | 2017-12-06 | 2019-06-14 | 江苏赛尔亚环保科技有限公司 | A kind of incinerator Heat Storing Wall material |
| CN112920781B (en) * | 2021-01-25 | 2021-08-20 | 山东大学 | Heat-storage composite calcium-based heat storage spherical particle and preparation method and application thereof |
| CN114149793B (en) * | 2021-12-09 | 2022-12-27 | 上海交通大学 | High-temperature thermochemical heat storage material with high energy storage density and high cycle stability and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492006A (en) * | 2002-10-23 | 2004-04-28 | 上海东康高热耐火制品有限公司 | Silicon carbide heater of surface coating |
| CN101717834A (en) * | 2009-12-11 | 2010-06-02 | 佛山市华澳炉料实业有限公司 | Method for preparing heat storage balls by utilizing electric-furnace steel slag |
| CN103694965A (en) * | 2013-12-25 | 2014-04-02 | 中源伟业新材料有限公司 | Method for fabricating heat accumulation product with high-temperature phase change heat accumulation material |
| CN103756647A (en) * | 2014-01-25 | 2014-04-30 | 西安科技大学 | Particle-molten salt compound heat-transferring and heat-accumulating medium material and preparation method thereof |
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2014
- 2014-07-17 CN CN201410340398.3A patent/CN104119842B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492006A (en) * | 2002-10-23 | 2004-04-28 | 上海东康高热耐火制品有限公司 | Silicon carbide heater of surface coating |
| CN101717834A (en) * | 2009-12-11 | 2010-06-02 | 佛山市华澳炉料实业有限公司 | Method for preparing heat storage balls by utilizing electric-furnace steel slag |
| CN103694965A (en) * | 2013-12-25 | 2014-04-02 | 中源伟业新材料有限公司 | Method for fabricating heat accumulation product with high-temperature phase change heat accumulation material |
| CN103756647A (en) * | 2014-01-25 | 2014-04-30 | 西安科技大学 | Particle-molten salt compound heat-transferring and heat-accumulating medium material and preparation method thereof |
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| CN104119842A (en) | 2014-10-29 |
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