CN1125208A - Process for producing bottom brick of molten tin bath - Google Patents
Process for producing bottom brick of molten tin bath Download PDFInfo
- Publication number
- CN1125208A CN1125208A CN 95110455 CN95110455A CN1125208A CN 1125208 A CN1125208 A CN 1125208A CN 95110455 CN95110455 CN 95110455 CN 95110455 A CN95110455 A CN 95110455A CN 1125208 A CN1125208 A CN 1125208A
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- China
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- molten tin
- tin bath
- raw material
- bottom brick
- base raw
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Abstract
The production technology of bottom bricks for molten tin bath includes preparation process of main raw material for making green bricks, preparation process of auxiliary raw material for making green bricks, green brick making process and baking process of green bricks. Its main raw material for making green bricks is comprised of 75-85% of reefoid gemstone and 20-25% of clay, and its auxiliary material for making green bricks is comprised of 1-2% of paper pulp, 0.5-2% of aluminium hydroxide and 94-96% of water. The above-mentioned main raw material and auxiliary raw material are mixed according to the proportion of 1:0.3-0.6, and made into green bricks through the greenb rick making process and then made into the bottomb ricks for molten tin bath through the baking process.
Description
Bottom brick of molten tin bath is the important refractory materials that uses in the large glass factory floatation glass production line, be used for building by laying bricks or stones of production line molten tin bath, molten tin bath then is the heart of production line, so whether the quality of bottom brick of molten tin bath directly has influence on whole floatation glass production line and can normally move for a long time, the bottom brick of molten tin bath that prior art is produced, no matter be import, home-made in the time of also, its process for producing bottom brick of molten tin bath is to adopt slip casting method production, and the compound of production adobe just has lower viscosity, contains more water, mobile strong, form with slurry is injected stock mould, the demoulding behind the bobbing machine vibratory compaction, drying is fired bottom brick of molten tin bath at last.
The deficiency that existing technology exists is:
(1) the brick volume density is low, void content is high, and it is many especially to be communicated with pore, thereby causes brick body alkali resistant penetrating power poor, the upper surface of brick body with the contacting of high temp glass liquid the time, can and glass in Na
2O reaction generates albite or nepheline etc., is directed at brick volumetric expansion, fragmentation, peels off the form come-up with disintegrating slag, not only influences the quality of glass, and will stop production when serious and overhaul replacing.
(2) to be communicated with pore many for the brick body, the Gas permeability height, and the bottom brick of molten tin bath surface easily produces bubble and enters in the glass precursor solution, is directed in the sheet glass of production to have bubble, thereby causes decrease in yield, the low and easy fragmentation of strength of glass.
The degree of compactness that exists in production application for the bottom brick of molten tin bath that solves existing process for producing bottom brick of molten tin bath production is low, the void content height, especially be communicated with the void content height, intensity is low, non-refractory and work-ing life low deficiency, we begin to develop that void content is low, intensity is high, the process for producing bottom brick of molten tin bath of high temperature resistant, long service life, original composition of raw materials has been carried out bigger adjustment, slip casting method is made into semidrying, vibro-compaction method is made into the ramming method, during oven dry the temperature curve and when firing the temperature curve also done suitable adjustment, to adapt to the requirement of novel process.Shake in Henan magnificent glasswork, Changping, Beijing glasswork of the bottom brick of molten tin bath sample of short run trial production tries out, one of the bottom brick of molten tin bath that used 6 years does not change, and comprising that the bottom brick of molten tin bath of import is the longest, other producers also can only generally about 1 year, must change with 2 years.
Just explain below the process for producing bottom brick of molten tin bath work of the present invention.
Process for producing bottom brick of molten tin bath of the present invention comprises the blending process of main base raw material, blending process, the manufacture craft of bottom brick of molten tin bath adobe and the sintering technology of bottom brick of molten tin bath adobe of auxiliary base raw material.Main base raw material is the reef jewel by 75-85%, the clay of 20-25% is formed, auxiliary base raw material is by paper pulp 1-2%, the water of aluminium hydroxide 0.5-2% and 94-96% is formed, main base raw material and auxiliary base raw material are by 1: 0.3-0.6 mixes, make adobe through blank-making technology, fired again technology is fired into bottom brick of molten tin bath.The blending process of main base raw material is that the reef jewel is pulverized, and its granularity per distribution ratio accounts for 40-50% for the 10-32 order, and the 32-80 order accounts for 25-30%, and 80 orders are above accounts for 0.5-20%, the clay mixing for standby use of getting its mixed 75-85% and 20-25%.The blending process of auxiliary base raw material is that aluminium hydroxide 0.5-2% is dissolved in the water of 94-97%, and the paper pulp 1-5% that adds the papermaking paper grade (stock) then fully stirs standby.The manufacture craft of bottom brick of molten tin bath adobe is the auxiliary base raw material of the main base raw material of 93-96% and 4-7% to be sent into stir into compound in the stirrer, the stock mould of packing into then send the plug ramming machine ramming to be shaped, ramming limit, limit is reinforced till compound is filled it up with stock mould, the ramming pressure of tamping machine is in the 5-6 kg/cm, the ramming feed rate is controlled at 10-20 minute/100 kilograms, whenever add the mixed once material as one deck, each layer ramming 3-6 time, each is all over making stock mould horizontally rotate 90 degree.Drying shed is sent in the bottom brick of molten tin bath adobe ramming shaping back demoulding dries, and bake out temperature is controlled at 40-60 ℃, dries 8-18 days, and surveying its moisture must not be greater than 2.5%.The sintering technology of bottom brick of molten tin bath adobe is oven dry bottom brick of molten tin bath adobe well to be sent into fire in the downdraf stove, the temperature curve is when firing, when normal temperature rises to 360 ℃, temperature rise rate is 5-10 ℃/hour, in the time of 360-900 ℃, temperature rise rate is 10-15 ℃/hour, in the time of 900 ℃, be incubated 20-28 hour, rise to 1380 ℃ from 900 ℃ again, temperature rise rate is 10-15/ hour, when being warming up to 1380 ℃, be incubated and close fire after 20-28 hour, temperature lowering curve and firing temperature curve are roughly the same, but direction is opposite.
Embodiment:
Process for producing bottom brick of molten tin bath of the present invention comprises the blending process of main base raw material, blending process, the manufacture craft of bottom brick of molten tin bath adobe and the sintering technology of bottom brick of molten tin bath adobe of auxiliary base raw material.Main base raw material is the reef jewel by 75-85%, and the clay of 20-25% is formed, and auxiliary base raw material is by paper pulp 1-2%, and the water of aluminium hydroxide 0.5-2% and 94-96% is formed.
Optimum implementation is: main base raw material mixes by 1: 0.4 with auxiliary base raw material, makes adobe through blank-making technology, and fired again technology is fired into bottom brick of molten tin bath.The blending process of main base raw material is that the reef jewel is pulverized, and its granularity per distribution ratio is: 25 orders account for 45%, 50 order account for 25%, 80 order above account for 0.2%, get its clay mixing for standby use of mixed 80% and 20%.The blending process of auxiliary base raw material is that aluminium hydroxide 1% is dissolved in 96% the water, and the paper pulp 3% that adds the papermaking paper grade (stock) then fully stirs standby.The manufacture craft of bottom brick of molten tin bath base is to assist the base raw material to send into 95% main base raw material and 5% to stir into compound in the stirrer, the stock mould of packing into then send the plug ramming machine ramming to be shaped, ramming limit, limit is reinforced till compound is filled it up with stock mould, the ramming pressure of tamping machine is in 5 kg/cm, the ramming feed rate is controlled at 15 minutes/100 kilograms, whenever add the mixed once material as one deck, each layer ramming 4 times, each is all over making stock mould horizontally rotate 90 degree.Drying shed is sent in the base raw material bottom brick of molten tin bath adobe ramming shaping back demoulding dries, and bake out temperature is controlled at 45 ℃, dries 12 days, and surveying its moisture must not be greater than 2.5%.The sintering technology of bottom brick of molten tin bath base is that the bottom brick of molten tin bath base that oven dry is good is sent into and fired in the downdraf stove, and the temperature curve is when firing: when normal temperature rose to 360 ℃, temperature rise rate was 8 ℃/hour, in the time of 360-900 ℃, temperature rise rate is 11C/ hour, in the time of 900 ℃, is incubated 26 hours, rise to 1380 ℃ from 900 ℃ again, temperature rise rate is 10/ hour, when being warming up to 1380 ℃, being incubated and closing fire after 24 hours, temperature lowering curve and firing temperature curve are roughly the same, but direction is opposite.
Process for producing bottom brick of molten tin bath of the present invention is compared with prior art, the bottom brick of molten tin bath of being produced have void content low, especially be communicated with that pore is few, intensity is high, advantage such as high temperature resistant, long service life, long-time trial effect is fairly obvious through several glasswories, generally get a good review, have good value for applications.
Claims (6)
1. process for producing bottom brick of molten tin bath, comprise the blending process of main base raw material, blending process, the manufacture craft of bottom brick of molten tin bath adobe and the sintering technology of bottom brick of molten tin bath adobe of auxiliary base raw material, it is characterized in that main base raw material is the reef jewel by 75-85%, the clay of 20-25% is formed, auxiliary base raw material is by paper pulp 1-2%, the water of aluminium hydroxide 0.5-2% and 94-96% is formed, main base raw material and auxiliary base raw material are by 1: the weight ratio of 0.3-0.6 is mixed, make adobe through blank-making technology, fired again technology is fired into bottom brick of molten tin bath.
2. process for producing bottom brick of molten tin bath according to claim 1, the blending process that it is characterized in that main base raw material is that the reef jewel is pulverized, its granularity per distribution ratio is: the 10-32 order accounts for 40-50%, the 32-80 order accounts for 25-30%, 80 orders are above accounts for 0.5-20%, the clay mixing for standby use of getting its mixed 75-85% and 20-25%.
3. process for producing bottom brick of molten tin bath according to claim 1 is characterized in that the blending process of auxiliary base raw material is that aluminium hydroxide 0.5-2% is dissolved in the water of 94-97%, and the paper pulp 1-5% that adds paper grade (stock) then fully stirs standby.
4. process for producing bottom brick of molten tin bath according to claim 1, the manufacture craft that it is characterized in that the bottom brick of molten tin bath adobe is the auxiliary base raw material of the main base raw material of 93-96% and 4-7% to be sent into stir into compound in the stirrer, the stock mould of packing into then send the plug ramming machine ramming to be shaped, ramming limit, limit is reinforced till compound is filled it up with stock mould, the ramming pressure of tamping machine is in the 5-6 kg/cm, the ramming feed rate is controlled at 10-20 minute/100 kilograms, whenever add mixed once material ramming 3-6 time, each is all over making stock mould horizontally rotate 90 degree.
5. process for producing bottom brick of molten tin bath according to claim 4, it is characterized in that bottom brick of molten tin bath adobe ramming is shaped after, drying shed is sent in the demoulding dries, bake out temperature is controlled at 40-60 ℃, dries 8-18 days, surveying its moisture must not be greater than 2.5%.
6. process for producing bottom brick of molten tin bath according to claim 1, the sintering technology that it is characterized in that the bottom brick of molten tin bath adobe is oven dry bottom brick of molten tin bath adobe well to be sent into fire in the downdraf stove, the firing temperature curve is: when normal temperature rises to 360 ℃, temperature rise rate is 5-10 ℃/hour, in the time of 360-900 ℃, temperature rise rate is 10-15 ℃/hour, in the time of 900 ℃, be incubated 20-28 hour, rise to 1380 ℃ from 900 ℃ again, temperature rise rate is 10-15/ hour, when being warming up to 1380 ℃, be incubated and close fire after 20-28 hour, temperature lowering curve and firing temperature curve are roughly the same, but direction is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95110455 CN1125208A (en) | 1995-05-18 | 1995-05-18 | Process for producing bottom brick of molten tin bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95110455 CN1125208A (en) | 1995-05-18 | 1995-05-18 | Process for producing bottom brick of molten tin bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1125208A true CN1125208A (en) | 1996-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95110455 Pending CN1125208A (en) | 1995-05-18 | 1995-05-18 | Process for producing bottom brick of molten tin bath |
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| CN (1) | CN1125208A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510713A (en) * | 2012-06-30 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Tin-bath brick structure construction process |
| CN112125682A (en) * | 2020-08-21 | 2020-12-25 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
| CN113501722A (en) * | 2021-07-15 | 2021-10-15 | 山东淄博沈淄耐火材料有限公司 | Preparation method of novel glass melting furnace tank wall light-weight big brick |
-
1995
- 1995-05-18 CN CN 95110455 patent/CN1125208A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510713A (en) * | 2012-06-30 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Tin-bath brick structure construction process |
| CN112125682A (en) * | 2020-08-21 | 2020-12-25 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
| CN112125682B (en) * | 2020-08-21 | 2022-05-31 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
| CN113501722A (en) * | 2021-07-15 | 2021-10-15 | 山东淄博沈淄耐火材料有限公司 | Preparation method of novel glass melting furnace tank wall light-weight big brick |
| CN113501722B (en) * | 2021-07-15 | 2022-07-22 | 山东淄博沈淄耐火材料有限公司 | Preparation method of large lightweight brick for tank wall of glass melting furnace |
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