CN103738936A - Carbon product roasting filler - Google Patents
Carbon product roasting filler Download PDFInfo
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- CN103738936A CN103738936A CN201310696851.XA CN201310696851A CN103738936A CN 103738936 A CN103738936 A CN 103738936A CN 201310696851 A CN201310696851 A CN 201310696851A CN 103738936 A CN103738936 A CN 103738936A
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- filler
- carbon product
- roasting
- granularity
- stopping composition
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Abstract
The invention discloses a carbon product roasting filler, which is prepared from limestone granules different in granularity, wherein the limestone granules of which the granularity is less than 2mm account for 30% of the total weight of the filler, the limestone granules of which the granularity ranges from 2mm to 6mm account for 90% of the total weight of the filler, and the limestone granules of which the granularity ranges from 6mm to 8mm account for 100% of the total weight of the filler. The carbon product roasting filler has the advantages that the heat-conducting property of the carbon product roasting filler is excellent, the sulfur content in the flue gas is adsorbed during roasting, the roasting cost is reduced, the cooling time of the roasted product is shortened, the generated byproduct helps improving the economic benefit, the probability of the carbon product roasting filler bonding to the roasted product is low, and the subsequent processing is capable of saving time, work and labor.
Description
Technical field
The present invention relates to a kind of carbon roasting furnace packing material.
Background technology
Roasting refers in specific environment carries out indirect heating processing to charcoal element raw product, makes caking agent decomposition, volatile matter in raw product get rid of, progressively realize coking, forms carbon carbon network structure, thereby improves the physicochemical property of carbon product.Stopping composition in stoving oven is used for covering charcoal element raw product, and fills the gap of carbon product, and the Main Function of stopping composition in roasting process has: (1) air-isolation, and it is not directly contacted with carbon product, prevent that carbon product is at high temperature oxidized; (2) heat is conducted to carbon product, make carbon product complete thermal treatment; (3) fill gap, support and fixed carbon cellulose product, prevent that carbon product from high temperature producing distortion; (4) control the carbon product volatile matter velocity of discharge, prevent that carbon product from cracking.Carbon industry adopts metallurgical Jiaozhuo baking carbon product stopping composition mostly at present, and its price is high, consumption is large, and the stopping composition after use also needs can continue use, time-consuming, to have required great effort, affected carbon product cost after cooling, fragmentation, screening.Patent No. ZL200610086892.7 discloses and has adopted material that fly ash grain, calcined coke particle and anode-baking broken particle mix as calcining filler; industrial waste flyash has been used in this invention; raw material sources are extensive, and preparation cost is low, reduced roasting cost.Patent No. ZL200710149920.X filling material for carbon material calcination, the main component that discloses roasting filler is silicon carbide, after the comparable forging of this invention, refinery coke filler shortens 24-72 hour, fills can be reduced to then-10kg/t-C of oxidational losses.Bakes to burn the article mixed type stopping composition for CN102795857A stoving oven, discloses roasting filler and has been made by 20% resinous shale and 80% metallurgical coke, adopts 20% resinous shale to substitute the usage quantity of part metallurgical coke, thereby has reduced production cost.From above-mentioned patent documentation, contriver, constantly researching and developing new roasting packing material, to improve the quality of products, reduces production costs.
Summary of the invention
The invention provides a kind of baking carbon product stopping composition, this stopping composition intensity is high, heat conductance good, material is easy to get and cheap stopping composition, can meet the requirement of baking carbon product.
The present invention adopts following technical scheme:
Baking carbon product stopping composition of the present invention is to be made by the different limestone particle of granularity, the limestone particle that wherein granularity is less than 2mm accounts for 30% of stopping composition total mass, granularity accounts for 60% of stopping composition total mass at the limestone particle of 2-6mm, and granularity accounts for 10% of stopping composition total mass at the limestone particle of 6-8mm.The limestone particle of above-mentioned various granularities is mixed and is baking carbon product stopping composition.
Baking carbon product stopping composition of the present invention, employing limestone particle is raw material, has the following advantages:
(1) thermal conductivity of the good limestone particle of heat conductivility is 1.26-1.33w/m.k, the more than 10 times of conventional stopping composition metallurgical coke thermal conductivity 0.06-0.12 w/m.k, the more than 5 times of flyash thermal conductivity 0.23 w/m.k, in baking carbon product process, limestone particle stopping composition can effectively transfer heat to carbon product, ensures the thorough roasting of carbon product.
(2) being beneficial to processing baking flue gas Wingdale is the good sweetening agent of a kind of effect.When carbon product is subject to after high-temperature roasting, the carbon monoxide that the sulphur of discharge and Wingdale decomposes produce reacts, thereby reaches the object of removing sulfureous in flue gas, has reduced harmful substances in flue gas content, has environmental protection characteristic.
(3) reduced the current limestone particle price of roasting cost 40 yuan of left and right per ton, and metallurgical coke price 1000 yuan of left and right per ton greatly reduce stopping composition purchase cost.
(4) increase economic benefit limestone particle stopping composition, both brought into play the effect of stopping composition, simultaneously after the high-temperature calcination of 900 ℃ of left and right, produce byproduct unslaked lime, the price of unslaked lime is 250 yuan of left and right per ton at present, deduct impurity and the loss of 20% left and right, increase profit and be about 180 yuan of left and right per ton.
(5) shorten that roasting product Wingdale cooling time heat conductance is good, rapid heat dissipation, shortened the cooling time of roasting product.
(6) be difficult for the densification of bonding Wingdale quality, hardness is high, be bonded in probability on carbon product less, even if there is small portion limestone particle to be bonded at carbon product surface, because Wingdale has become unslaked lime through high-temperature calcination, as long as water spray product surface, the unslaked lime that is bonded at product surface will react age lime, be easy to cleaning.
(7) saved cooling, fragmentation, sieve graded tasks, saved time, laborsaving.
In sum, limestone particle is used as baking carbon product stopping composition separately, can play the effect of achieving many things at one stroke.
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
Make 5 tons of baking carbon product stopping composition of the present invention.First the Wingdale of exploitation is pulverized, screening, get 1.5 tons of the limestone particles that granularity is less than 2mm, granularity is 3 tons of the limestone particles of 2-6mm, granularity is 0.5 ton of the limestone particle of 6-8mm.Then the limestone particle of above-mentioned various granularities is mixed and be the stopping composition of baking carbon product stopping composition for baking carbon product.In flue gas in roasting process, can't detect the content of sulphur; Reduce by more than half the cooling time after roasting finishes compared with metallurgical coke; The a small amount of water of unslaked lime that is bonded in minute quantity in baked article cleaned out easily; After the use of one-period, obtain the unslaked lime byproduct of 4.1 tons.
Claims (1)
1. a baking carbon product stopping composition, it is characterized in that calcining filler made by the different limestone particle of granularity, the per-cent that the limestone particle of various granularities accounts for stopping composition total mass is respectively: the limestone particle that granularity is less than 2mm is 30%, granularity is 60% at the limestone particle of 2-6mm, and granularity is 10% at the limestone particle of 6-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696851.XA CN103738936A (en) | 2013-12-18 | 2013-12-18 | Carbon product roasting filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696851.XA CN103738936A (en) | 2013-12-18 | 2013-12-18 | Carbon product roasting filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103738936A true CN103738936A (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310696851.XA Pending CN103738936A (en) | 2013-12-18 | 2013-12-18 | Carbon product roasting filler |
Country Status (1)
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| CN (1) | CN103738936A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058386A (en) * | 2014-06-27 | 2014-09-24 | 中国铝业股份有限公司 | Filling material of carbon baking furnace and preparation method thereof |
| CN104477890A (en) * | 2014-12-05 | 2015-04-01 | 大同新成新材料股份有限公司 | One-time roasting method for isostatic graphite product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872790A (en) * | 2006-06-22 | 2006-12-06 | 中国铝业股份有限公司 | Filler material for furnace of baking powder of charcoal |
| CN101157552A (en) * | 2007-09-22 | 2008-04-09 | 刘万毅 | Filling material for carbon material calcination |
| CN101696010A (en) * | 2009-04-16 | 2010-04-21 | 国科瑞德(北京)能源科技发展有限公司 | Clustered-cell type calcium carbide furnace burden |
-
2013
- 2013-12-18 CN CN201310696851.XA patent/CN103738936A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872790A (en) * | 2006-06-22 | 2006-12-06 | 中国铝业股份有限公司 | Filler material for furnace of baking powder of charcoal |
| CN101157552A (en) * | 2007-09-22 | 2008-04-09 | 刘万毅 | Filling material for carbon material calcination |
| CN101696010A (en) * | 2009-04-16 | 2010-04-21 | 国科瑞德(北京)能源科技发展有限公司 | Clustered-cell type calcium carbide furnace burden |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058386A (en) * | 2014-06-27 | 2014-09-24 | 中国铝业股份有限公司 | Filling material of carbon baking furnace and preparation method thereof |
| CN104477890A (en) * | 2014-12-05 | 2015-04-01 | 大同新成新材料股份有限公司 | One-time roasting method for isostatic graphite product |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Jianjun Inventor after: Zheng Yan Inventor before: Wu Jianjun |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU JIANJUN TO: WU JIANJUN ZHENG YAN |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |