CN109776098A - A kind of binding agent for magnesium carbon brick - Google Patents
A kind of binding agent for magnesium carbon brick Download PDFInfo
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- CN109776098A CN109776098A CN201910228501.8A CN201910228501A CN109776098A CN 109776098 A CN109776098 A CN 109776098A CN 201910228501 A CN201910228501 A CN 201910228501A CN 109776098 A CN109776098 A CN 109776098A
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- carbon brick
- binding agent
- magnesium carbon
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- phenolic resin
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Abstract
A kind of binding agent for magnesium carbon brick, it is prepared by the raw material of following parts by weight: 0.05-0.125 parts of high temperature coal-tar, 0.05-0.125 parts of furfural, 0.1-0.25 parts of hard pitch, 0.5-0.8 parts of thermosetting phenolic resin.Binding agent for magnesium carbon brick performance provided by the invention is as follows: solid content is about 83%, and 5% is improved compared with traditional bonding agent；Carbon residue improves 3% up to 45% or more compared with traditional bonding agent；Using binding agent for magnesium carbon brick of the invention, the magnesia carbon brick product of production is averaged compressive resistance and 1400 DEG C of high temperature break resistant intensities are superior to conventional resins bonding agent, and its average linear change rate and the porosity are also low, and comprehensive performance far surpasses the magnesia carbon brick produced with conventional resins bonding agent.
Description
Technical field
The invention belongs to refractory binder fields, and in particular to a kind of binding agent for magnesium carbon brick.
Background technique
Magnesia carbon brick needs to add a certain amount of liquid binder in process of production, wet between aggregate each component to increase
Lubricant nature is conducive to enhance carbon dust for the wrapped of magnesia particle, reduces the magnesia carbon brick porosity, increase the intensity of magnesia carbon brick.It is existing
There is the binding agent for magnesium carbon brick in technology generally to use pure phenolic resin, it is expensive the disadvantage is that at high cost, and after being mixed with aggregate
Wellability it is lower, carbon dust cannot fully wrapped around magnesia particle, cause magnesia carbon brick intensity low, service life is short.Therefore, it is necessary to add
Add more bonding agents increasing wellability, reducing cost and improving magnesia carbon brick intensity and service life.
Summary of the invention
A kind of novel binding agent for magnesium carbon brick is provided it is an object of the present invention to solve the deficiencies in the prior art.
The purpose of the present invention is realized with following technical proposals:
A kind of binding agent for magnesium carbon brick, it is prepared by the raw material of following parts by weight: 0.05-0.125 parts of high temperature coal-tar,
0.05-0.125 parts of furfural, 0.1-0.25 parts of hard pitch, 0.5-0.8 parts of thermosetting phenolic resin.
Preferably, it is prepared by the raw material of following parts by weight: 0.075 part of high temperature coal-tar, furfural 0.075
Part, 0.15 part of hard pitch, 0.75 part of thermosetting phenolic resin.
The hard pitch softening point is 105-115 DEG C.
The viscosity of the thermosetting phenolic resin is 5000cP-8000cP.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: mix high temperature coal-tar with furfural
After be heated to 80 DEG C -90 DEG C, hard pitch is then added, is then heated to 105-115 DEG C of holding 15-25min, stirs evenly,
It is cooled to 75-85 DEG C of addition phenolic resin, after mixing evenly to obtain the final product.
Application of the binding agent for magnesium carbon brick in magnesium carbon series refractory material as described above.
The binding agent for magnesium carbon brick using when be heated to temperature be 38-42 DEG C, then mixed with magnesia carbon brick other compositions.
Binding agent for magnesium carbon brick performance provided by the invention is as follows:
Solid content is about 83%, and 5% is improved compared with traditional bonding agent；
Carbon residue improves 3% up to 45% or more compared with traditional bonding agent；
By experiment, after bonding agent of the present invention is added, the variation of magnesia carbon brick index is as follows:
Average cold crushing strength is improved from 48.6MPa to 61.9MPa, increases by 20 % or more；
At the brick porosity from 9.6% Jiang Di Zhi≤8.2%, 1.4 % are reduced；
Using binding agent for magnesium carbon brick of the invention, the magnesia carbon brick product of production is averaged compressive resistance (61.9MPa) and 1400 DEG C of height
Warm flexural strength (11.4MPa) is superior to conventional resins bonding agent, and its average linear change rate (2.8%) and the porosity
(8.2%) also low, comprehensive performance far surpasses the magnesia carbon brick produced with conventional resins bonding agent.
Specific embodiment
Embodiment 1
A kind of binding agent for magnesium carbon brick, it is prepared by the raw material of following parts by weight: 0.05-0.125 parts of high temperature coal-tar,
0.05-0.125 parts of furfural, 0.1-0.25 parts of hard pitch, 0.5-0.8 parts of thermosetting phenolic resin.
Hard pitch softening point used is 105-115 DEG C, and the viscosity of thermosetting phenolic resin used is 5000cP-
8000cP.High temperature coal-tar used herein is purchased from Handan City through vast and boundless trade Co., Ltd, and hard pitch is purchased from Handan City's warp
Vast and boundless trade Co., Ltd, Technical furfural are purchased from Luoyang perseverance brightness chemical examination equipment Co., Ltd, and thermosetting phenolic resin is the auspicious energy in Yima
Chemical Co., Ltd.'s production.
High temperature coal tar and furfural of the present invention are used mainly as solvent, can dissolve hard pitch, which can be with
Phenolic resin is used in combination, and it is significant that the two is used in mixed way synergy.And high temperature coal-tar, furfural, asphalt stock price are just
Preferably, it is easy to get, production cost can be reduced.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: add after mixing coal tar with furfural
Heat is then slowly added into hard pitch to 80 DEG C -90 DEG C, is then heated to 105-115 DEG C of holding 15-25min, stirs evenly,
Then it is cooled to 75-85 DEG C of addition phenolic resin, after mixing evenly to obtain the final product.
Most 38-42 DEG C need to be heated when the binding agent for magnesium carbon brick use, at this time viscosity be 1630-1670cP, then with
Magnesia carbon brick other components are mixed again.
Embodiment 2
A kind of binding agent for magnesium carbon brick, it is prepared by the raw material of following parts by weight: 0.075 part of high temperature coal-tar, furfural
0.075 part, 0.15 part of hard pitch, 0.75 part of thermosetting phenolic resin.
Hard pitch softening point used is 110 DEG C, and the viscosity of thermosetting phenolic resin used is 5000cP-8000cP.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: add after mixing coal tar with furfural
Heat starts to be slowly added to hard pitch to 85 DEG C, is then heated to 110 DEG C of holding 20min, stirs evenly, and is cooled to 80 DEG C and adds
Enter phenolic resin, after mixing evenly to obtain the final product.
Resulting binding agent for magnesium carbon brick solid content is 81.24%, carbon residue 45.79%.
Test example
Using 4 different ratio bonding agents, bonding agent is specifically matched as shown in table 1, and preparation method is the same as embodiment 2；Then it selects
Difference uses temperature (15 DEG C, 20 DEG C, 25 DEG C, 30 DEG C, 35 DEG C, 40 DEG C and 45 DEG C), studies at brick performance, concrete outcome
As shown in table 2.Specific experimental method is as follows:
First by magnesia carbon brick in addition to the other compositions dry materials of bonding agent are uniformly mixed, and be heated to 40 DEG C it is spare, then will combine
Agent is heated to will warm up using temperature and is added in the mixing dry materials of solution stand-by heat using the bonding agent of temperature, and 15min is mixed
(magnesia carbon brick proportion are as follows: bonding agent 476g, magnesia carbon brick other compositions dry materials are 17000g, and magnesium carbon other compositions dry materials include
Mass ratio is magnesia, graphite and the aluminium powder of 83:15:2), it is then molded, die size is big for 200(long) * 155(
Head) * 145(microcephaly), it is measured at the various performances of brick.Serial number 22 is sample 2(with real as can be seen from Table 1 and Table 2
Apply example 2 proportion) at 40 DEG C using the obtained product compressive resistance (68.8MPa) of temperature and 1400 DEG C of high temperature break resistant intensities
(12.3MPa) highest, and its 1550 DEG C of linear change rates (2.6%) and the porosity (6.4%) are relatively low, and comprehensive performance is most
It is good.
Table 2
It is obtained as shown in table 3 at brick performance under identical experimental method using traditional bonding agent (pure phenolic resin).
Embodiment 3
A kind of binding agent for magnesium carbon brick, it is prepared from the following materials: 0.08 part of high temperature coal-tar, 0.1 part of furfural, high temperature
0.2 part of pitch, 0.6 part of thermosetting phenolic resin.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: add after mixing coal tar with furfural
Heat starts to be slowly added to hard pitch to 85 DEG C, is then heated to 110 DEG C of holding 20min, stirs evenly, and is cooled to 80 DEG C and adds
Enter phenolic resin, after mixing evenly to obtain the final product.
Embodiment 4
A kind of binding agent for magnesium carbon brick, it is prepared from the following materials: 0.1 part of high temperature coal-tar, 0.1 part of furfural, high temperature
0.18 part of pitch, 0.7 part of thermosetting phenolic resin.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: add after mixing coal tar with furfural
Heat starts to be slowly added to hard pitch to 83 DEG C, is then heated to 115 DEG C of holding 20min, stirs evenly, and is cooled to 80 DEG C and adds
Enter phenolic resin, after mixing evenly to obtain the final product.
Embodiment 5
A kind of binding agent for magnesium carbon brick, it is prepared from the following materials: 0.06 part of high temperature coal-tar, 0.07 part of furfural, height
0.15 part of warm pitch, 0.5 part of thermosetting phenolic resin.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: add after mixing coal tar with furfural
Heat starts to be slowly added to hard pitch to 88 DEG C, is then heated to 110 DEG C of holding 25min, stirs evenly, and is cooled to 78 DEG C and adds
Enter phenolic resin, after mixing evenly to obtain the final product.
Embodiment 6
A kind of binding agent for magnesium carbon brick, it is prepared from the following materials: 0.05 part of high temperature coal-tar, 0.05 part of furfural, height
0.12 part of warm pitch, 0.7 part of thermosetting phenolic resin.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: add after mixing coal tar with furfural
Heat starts to be slowly added to hard pitch to 88 DEG C, is then heated to 105 DEG C of holding 25min, stirs evenly, and is cooled to 80 DEG C and adds
Enter phenolic resin, after mixing evenly to obtain the final product.
Embodiment 7
A kind of binding agent for magnesium carbon brick, it is prepared from the following materials: 0.12 part of high temperature coal-tar, 0.125 part of furfural, height
0.23 part of warm pitch, 0.8 part of thermosetting phenolic resin.
The preparation method of binding agent for magnesium carbon brick as described above, comprising the following steps: add after mixing coal tar with furfural
Heat starts to be slowly added to hard pitch to 85 DEG C, is then heated to 110 DEG C of holding 20min, stirs evenly, and is cooled to 75 DEG C and adds
Enter phenolic resin, after mixing evenly to obtain the final product.
Claims (7)
1. a kind of binding agent for magnesium carbon brick, it is characterised in that it is prepared by the raw material of following parts by weight: high temperature coal-tar
0.05-0.125 parts, 0.05-0.125 parts of furfural, 0.1-0.25 parts of hard pitch, 0.5-0.8 parts of thermosetting phenolic resin.
2. binding agent for magnesium carbon brick as described in claim 1, feature in it is prepared by the raw material of following parts by weight:
0.075 part of high temperature coal-tar, 0.075 part of furfural, 0.15 part of hard pitch, 0.75 part of thermosetting phenolic resin.
3. such as the described in any item binding agent for magnesium carbon brick of claim 1-2, it is characterised in that the hard pitch softening point is
105-115℃。
4. such as the described in any item binding agent for magnesium carbon brick of claim 1-2, it is characterised in that the thermosetting phenolic resin glues
Degree is 5000cP-8000cP.
5. the preparation method of binding agent for magnesium carbon brick according to any one of claims 1-4, it is characterised in that the following steps are included:
It is heated to 80 DEG C -90 DEG C after high temperature coal-tar is mixed with furfural, hard pitch is then added, is then heated to 105-115 DEG C
It keeps 15-25min, stirs evenly, be cooled to 75-85 DEG C of addition thermosetting phenolic resin, after mixing evenly to obtain the final product.
6. application of the binding agent for magnesium carbon brick according to any one of claims 1-4 in magnesium carbon series refractory material.
7. the application of binding agent for magnesium carbon brick as claimed in claim 6, it is characterised in that add when the binding agent for magnesium carbon brick use
Heat to temperature is 38-42 DEG C, is then mixed with magnesia carbon brick other compositions.
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| CN201910228501.8A CN109776098A (en) | 2019-03-25 | 2019-03-25 | A kind of binding agent for magnesium carbon brick |
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Citations (8)
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|---|---|---|---|---|
| US4082718A (en) * | 1975-05-30 | 1978-04-04 | Nippon Steel Corporation | Tap hole mix |
| JPS54123116A (en) * | 1978-03-16 | 1979-09-25 | Showa Denko Kk | Dolomite type nonnshaped refractory |
| CN1072440A (en) * | 1991-11-18 | 1993-05-26 | 冶金工业部洛阳耐火材料研究院 | A kind of carbon containing bonding agent for refratory material |
| CN101244943A (en) * | 2008-03-20 | 2008-08-20 | 太原钢铁(集团)有限公司 | Wedding agent for large-scale blast furnace stemming and blast furnace stemming |
| CN101486885A (en) * | 2007-05-16 | 2009-07-22 | 周惠兴 | Binder for magnesium carbonaceous fire-resistant material |
| CN102010202A (en) * | 2010-12-10 | 2011-04-13 | 昆明冶金研究院 | Method for preparing cold ramming paste for electrolytic aluminum |
| CN103396133A (en) * | 2013-07-30 | 2013-11-20 | 山东圣泉化工股份有限公司 | Phenolic resin composition for stemming, preparation method of composition and stemming |
| CN106414579A (en) * | 2014-05-16 | 2017-02-15 | 维苏威坩埚公司 | Refractory binder system |
-
2019
- 2019-03-25 CN CN201910228501.8A patent/CN109776098A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082718A (en) * | 1975-05-30 | 1978-04-04 | Nippon Steel Corporation | Tap hole mix |
| JPS54123116A (en) * | 1978-03-16 | 1979-09-25 | Showa Denko Kk | Dolomite type nonnshaped refractory |
| CN1072440A (en) * | 1991-11-18 | 1993-05-26 | 冶金工业部洛阳耐火材料研究院 | A kind of carbon containing bonding agent for refratory material |
| CN101486885A (en) * | 2007-05-16 | 2009-07-22 | 周惠兴 | Binder for magnesium carbonaceous fire-resistant material |
| CN101244943A (en) * | 2008-03-20 | 2008-08-20 | 太原钢铁(集团)有限公司 | Wedding agent for large-scale blast furnace stemming and blast furnace stemming |
| CN102010202A (en) * | 2010-12-10 | 2011-04-13 | 昆明冶金研究院 | Method for preparing cold ramming paste for electrolytic aluminum |
| CN103396133A (en) * | 2013-07-30 | 2013-11-20 | 山东圣泉化工股份有限公司 | Phenolic resin composition for stemming, preparation method of composition and stemming |
| CN106414579A (en) * | 2014-05-16 | 2017-02-15 | 维苏威坩埚公司 | Refractory binder system |
Non-Patent Citations (2)
| Title |
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| 张雪松等: "镁碳砖用中间相沥青-酚醛树脂结合剂的研制", 《耐火材料》 * |
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Application publication date: 20190521 |