CN111056850A - Quasi-sillimanite brick for glass melting furnace - Google Patents
Quasi-sillimanite brick for glass melting furnace Download PDFInfo
- Publication number
- CN111056850A CN111056850A CN201911076061.5A CN201911076061A CN111056850A CN 111056850 A CN111056850 A CN 111056850A CN 201911076061 A CN201911076061 A CN 201911076061A CN 111056850 A CN111056850 A CN 111056850A
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- Prior art keywords
- parts
- sillimanite
- brick
- particles
- quasi
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a quasi-sillimanite brick for a glass melting furnace, which comprises the following raw materials, by weight, 10-20 parts of large flint particles, 40-45 parts of fine flint particles, 5-10 parts of small sillimanite particles, 8-10 parts of an additive and 8-10 parts of a bonding agent. The invention takes the flint clay as the main material and a small amount of sillimanite, adjusts the parts of the ingredients, has simple ingredients and similar performance to the existing sillimanite brick, can replace the direct combination of magnesia-chrome brick, sillimanite brick and andalusite brick, and greatly reduces the cost.
Description
Technical Field
The invention relates to a glass melting furnace used for refractory bricks, in particular to a quasi-sillimanite brick used for the glass melting furnace.
Background
A glass kiln is a thermal device used for melting glass batch in glass manufacturing. Different from other kilns, the glass kiln has more serious erosion resistance and scouring resistance to the lining, has higher requirement on apparent porosity and stronger internal thermal shock effect, and therefore has extremely high requirement on the lining performance of the refractory material. Otherwise, the quality of the glass product is seriously affected, such as the defects of stones, bubbles, striae and the like. The existing lining paved by the sillimanite has poor erosion resistance and scouring resistance, and has the phenomena of cracks and peeling in the high-temperature and cooling processes. And the ingredients are complex and the manufacturing cost is high. For example: the invention patent of Chinese patent application publication No. CN 107021764A, title high-temperature sillimanite brick and its production method is a typical one. The inventor believes that the existing sillimanite brick has a great room for improvement through long-term practice and research to solve the above-mentioned technical problems of high cost and low performance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a quasi-sillimanite brick for a glass melting furnace, which is used for replacing a magnesia-chrome brick, a sillimanite brick and a andalusite brick which are directly combined in the prior art so as to reduce the cost and the pollution, and particularly is realized by the following technical scheme:
the invention relates to a quasi-sillimanite brick for a glass melting furnace, which comprises the following raw materials, by weight, 10-20 parts of large flint clay particles, 40-45 parts of fine flint clay particles, 5-10 parts of small sillimanite particles, 8-10 parts of an additive and 8-10 parts of a bonding agent.
Preferably, the flint clay comprises 20 parts of large flint clay particles, 45 parts of fine flint clay particles, 10 parts of small sillimanite particles, 10 parts of an additive and 10 parts of a bonding agent.
Preferably, 30 parts of large flint clay particles, 40 parts of fine flint clay particles, 6 parts of small sillimanite particles, 8 parts of an additive and 8 parts of a bonding agent.
Preferably, 30 parts of the large flint clay particles have the granularity of 3mm-0, and 40 parts of the fine flint clay particles have the granularity of less than or equal to 0.088.
Preferably, the additive is pulp water.
Preferably, the binder is high alumina sludge.
The invention has the beneficial effects that: the invention takes the flint clay as the main material and a small amount of sillimanite, adjusts the parts of the ingredients and fully reduces the consumption of refractory materials. The cost is greatly reduced. In the refractory material preparation industry, the sillimanite brick ingredients are generally added with raw materials such as mullite, the traditional ingredients are changed, the convention is broken through, the performance of the existing sillimanite brick is enhanced or maintained while the raw materials are reduced, the breakthrough is important, the corrosion resistance and the scouring resistance are good through the change of the raw material proportion and the setting of scientific granularity, the apparent porosity is low, the thermal shock resistance is strong, and the physical and chemical indexes are as follows:
as can be seen from the above table: the quasi-sillimanite brick produced by the invention completely meets the national standard, so that the high-cost refractory material of the prior direct combination magnesia-chrome brick, sillimanite brick and andalusite brick can be replaced.
Detailed Description
The invention relates to a quasi-sillimanite brick for a glass melting furnace, which is characterized in that: the flint clay comprises, by weight, 10-20 parts of large flint clay particles, 40-45 parts of fine flint clay particles, 5-10 parts of small sillimanite particles, 8-10 parts of an additive and 8-10 parts of a binding agent. As a preferable scheme, the flint clay comprises 20 parts of large flint clay particles, 45 parts of fine flint clay particles, 10 parts of small sillimanite particles, 10 parts of an additive and 10 parts of a bonding agent. Further, preferably, the additive is pulp water. The bonding agent is high-alumina mud. The pulp water and the high-alumina sludge are the prior art and are not described in detail herein.
The physicochemical indexes of the scheme are shown in table 2:
| serial number | Physical and chemical project | Index of the invention |
| 01 | 0.2MP refractoriness under load | 1650 |
| 02 | Thermal shock stability (sub) water cooling 1100 deg.C | 20 |
| 03 | Normal temperature compressive strength (MP) | 100 |
| 04 | Showing porosity (%) | 16 |
Therefore, the thermal shock stability of the invention is more than 25 times at the water cooling temperature of 1100 ℃, and exceeds that of the direct bonding magnesia-chrome brick, and the thermal shock stability is better than that of the direct bonding magnesia-chrome brick; the thermal shock stability can be completely compared with that of sillimanite brick and andalusite brick. And secondly, the normal-temperature compressive strength is higher than 80Mpa and far higher than that of the directly-bonded magnesite-chrome brick, and the apparent porosity is lower than 17% and lower than that of the directly-bonded magnesite-chrome brick, so that the quasi-sillimanite brick for the glass melting furnace disclosed by the invention is resistant to corrosion and scouring and low in apparent porosity, can not cause glass defects such as stones, bubbles, ribs and the like, and can completely replace the directly-bonded magnesite-chrome brick.
As a similar scheme of the scheme, in the embodiment, the quasi-sillimanite brick for the glass melting furnace comprises 30 parts of large flint particles, 40 parts of fine flint particles, 6 parts of small sillimanite particles, 8 parts of an additive and 8 parts of a bonding agent. The physical and chemical properties are substantially the same as those in Table 2 and are not shown here.
The inventor finds in long-term practice that the physical and chemical properties of the quasi-sillimanite brick for the glass melting furnace can be further optimized by adopting flint clay with the following granularity as a main material, and specifically the physical and chemical properties are as follows: 30 parts of large flint clay particles have the granularity of 3mm-0, and 40 parts of fine flint clay particles have the granularity of less than or equal to 0.088. The physical and chemical properties are shown in Table 3:
| serial number | Physical and chemical project | Index of the invention |
| 01 | 0.2MP refractoriness under load | 1700 |
| 02 | Thermal shock stability (sub) water cooling 1100 deg.C | 26 |
| 03 | Normal temperature compressive strength (MP) | 90 |
| 04 | Showing porosity (%) | 15 |
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. A quasi sillimanite brick for a glass melting furnace is characterized in that: the flint clay comprises, by weight, 10-20 parts of large flint clay particles, 40-45 parts of fine flint clay particles, 5-10 parts of small sillimanite particles, 8-10 parts of an additive and 8-10 parts of a binding agent.
2. The quasi-sillimanite brick for a glass melting furnace of claim 1, wherein: 20 parts of large flint clay particles, 45 parts of fine flint clay particles, 10 parts of small sillimanite particles, 10 parts of an additive and 10 parts of a binding agent.
3. The quasi-sillimanite brick for a glass melting furnace of claim 1, wherein: 30 parts of large flint clay particles, 40 parts of fine flint clay particles, 6 parts of small sillimanite particles, 8 parts of an additive and 8 parts of a binding agent.
4. A quasi-sillimanite brick for a glass melting furnace according to any one of claims 1 to 3, characterized in that: 30 parts of large flint clay particles have the granularity of 3mm-0, and 40 parts of fine flint clay particles have the granularity of less than or equal to 0.088.
5. The quasi-sillimanite brick for a glass melting furnace of claim 1, wherein: the additive is pulp water.
6. The quasi-sillimanite brick for a glass melting furnace of claim 1, wherein: the bonding agent is high-alumina mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076061.5A CN111056850A (en) | 2019-11-06 | 2019-11-06 | Quasi-sillimanite brick for glass melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076061.5A CN111056850A (en) | 2019-11-06 | 2019-11-06 | Quasi-sillimanite brick for glass melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111056850A true CN111056850A (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911076061.5A Pending CN111056850A (en) | 2019-11-06 | 2019-11-06 | Quasi-sillimanite brick for glass melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111056850A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4900698A (en) * | 1987-05-26 | 1990-02-13 | W. R. Grace & Co.-Conn. | Ceramic product and process |
| EP0495662A1 (en) * | 1991-01-16 | 1992-07-22 | Japan Abrasive Co., Ltd. | Refractory materials |
| CN106187239A (en) * | 2016-07-21 | 2016-12-07 | 济源市金峰耐火材料有限公司 | Low creep flint clay composite refractory brick and its preparation method and application |
| CN106187236A (en) * | 2016-07-21 | 2016-12-07 | 济源市金峰耐火材料有限公司 | Flint clay composite refractory brick and its preparation method and application |
| CN106187240A (en) * | 2016-07-21 | 2016-12-07 | 济源市金峰耐火材料有限公司 | Low-creep refractory brick and its preparation method and application |
-
2019
- 2019-11-06 CN CN201911076061.5A patent/CN111056850A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4900698A (en) * | 1987-05-26 | 1990-02-13 | W. R. Grace & Co.-Conn. | Ceramic product and process |
| EP0495662A1 (en) * | 1991-01-16 | 1992-07-22 | Japan Abrasive Co., Ltd. | Refractory materials |
| CN106187239A (en) * | 2016-07-21 | 2016-12-07 | 济源市金峰耐火材料有限公司 | Low creep flint clay composite refractory brick and its preparation method and application |
| CN106187236A (en) * | 2016-07-21 | 2016-12-07 | 济源市金峰耐火材料有限公司 | Flint clay composite refractory brick and its preparation method and application |
| CN106187240A (en) * | 2016-07-21 | 2016-12-07 | 济源市金峰耐火材料有限公司 | Low-creep refractory brick and its preparation method and application |
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Application publication date: 20200424 |
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