CN1903783A - High effect leakage proof brick of aluminium electrolysis bath and its preparation method - Google Patents
High effect leakage proof brick of aluminium electrolysis bath and its preparation method Download PDFInfo
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- CN1903783A CN1903783A CN 200610048543 CN200610048543A CN1903783A CN 1903783 A CN1903783 A CN 1903783A CN 200610048543 CN200610048543 CN 200610048543 CN 200610048543 A CN200610048543 A CN 200610048543A CN 1903783 A CN1903783 A CN 1903783A
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- high effect
- electrolysis bath
- leakage proof
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Abstract
The present invention relates to an aluminium electrolytic bath high-effective impervious brick and its preparation method. It is made up by using silicon-alumina refractory mineral as raw material through the processes of calcining, dewatering, pulverizing, adding solid additive, mixing, adding liquid binding agent, wet-grinding, mixing, vibration to forming or extruding to forming, drying so as to obtain the invented impervious brick. Said impervious brick raw material composition includes (by weight portion) 40-70 portions of SiO2, 30-60 portions of Al2O3, 3-7 portions of Fe2O3, 1-5 portions of solid additive and 3-15 portions of liquid binding agent.
Description
Technical field:
The present invention relates to a kind of leakage proof brick and preparation method thereof, particularly a kind of high effect leakage proof brick of aluminium electrolysis bath and preparation method thereof belongs to fire resisting material field.
Background technology:
The melting of metallic aluminium generally adopts sodium aluminum fluoride-alumina molten salt electrolysis method to produce, and major equipment is an electrolyzer, and its liner is made of charcoal piece, refractory brick and lagging material.In the Aluminum Electrolysis Production process, the groove liner is subjected to the erosion of electrolyte melt (Na and NaF) and aluminium liquid for a long time, and penetrates in the thermofin through cathode carbon pieces, causes the thermofin breakage, the heat-insulating property variation.
At above problem, what current electrolysis aluminium industry generally adopted is the anti-bleed of dry type, also play certain anti-seepage effect, need ramming and vibrations equipment to compress its density when but the shape material is constructed at the scene owing to loose, exist density refractory with control, voidage is big, quality fluctuation is big, electrolytic solution is easily permeated, and many drawbacks such as dust pollution is serious, use the anti-bleed of dry type also to be difficult to guarantee construction quality and effect.
Therefore, invent a kind of easy construction, the antiseepage inner lining material of impervious effective and steady quality, environmental protection also is target of current aluminum electrolysis industry.
Summary of the invention:
The purpose of this invention is to provide a kind of easy construction, impervious effective and stay-in-grade, the high effect leakage proof brick of aluminium electrolysis bath that is used to build by laying bricks or stones aluminium cell or al molten bath sealing coat inner lining material, a kind of preparation method of this high effect leakage proof brick of aluminium electrolysis bath also is provided.
The objective of the invention is to be achieved through the following technical solutions:
A kind of high effect leakage proof brick of aluminium electrolysis bath is made up of following each component that with the weight part is unit: SiO
240～70 parts, Al
2O
330～60 parts, Fe
2O
33～7 parts, 1～5 part of solid additive, 3～15 parts of liquid wedding agents.
Described solid additive be in pure aluminium silicate, Tai-Ace S 150, aluminum phosphate and the aluminium dihydrogen phosphate a kind of, two or more.
Described liquid wedding agent is paper pulp or water glass.
A kind of preparation method of described high effect leakage proof brick of aluminium electrolysis bath, its concrete steps are: with silicon-aluminium matter refractory mineral as raw material, calcined dehydration, pulverizing, the solid additive that adds described weight part is done mixed, after stirring, add the liquid wedding agent again, wet and grind mixing; The mixture that obtains is carried out the detection of component concentration, meet the high effect leakage proof brick of aluminium electrolysis bath standard after, with vibrations pressing machine vibrating forming or extrusion machine extrusion molding, oven dry, obtain needed high effect leakage proof brick of aluminium electrolysis bath; If do not meet standard, dose the component that is lacked, after conformance with standard, vibrations again, extrusion molding, baking are burnt.
Above described the ratio of aggregate and powder is 50～70: 30～50 through in the material of pulverizing, wherein, the granularity of aggregate is 0.21～4mm, the granularity of powder is 0～0.2mm.
In the material after the pulverizing, smaller or equal to the particulate of 0.088mm more than or equal to 20%.
Calcining temperature recited above is 1300～2700 ℃.
Bake out temperature recited above is 250～300 ℃.
Positive beneficial effect of the present invention is:
1, high effect leakage proof brick of aluminium electrolysis bath of the present invention belongs to the high-density condensation body of silicon-aluminium matter mineral compound, and non-sintered article compares with traditional anti-bleed that voidage is low, to connect pore few, and anti-permeability performance is higher, thereby has improved electrolyzer work-ing life.
2, high effect leakage proof brick of aluminium electrolysis bath of the present invention is convenient to construction.Only need during construction that making is just passable as requested with high effect leakage proof brick of aluminium electrolysis bath of the present invention, do not need ramming and jolt-squeeze not worry the quality problems that cause because of pressed density and uneven thickness, can effectively control the furnace construction engineering quality.
3, adopt high effect leakage proof brick of aluminium electrolysis bath of the present invention, can reduce the dust, the sound pollution that cause because of in the shape material construction of loosing, compliance with environmental protection requirements.
4, high effect leakage proof brick of aluminium electrolysis bath of the present invention, after using one-period, the surface corrosion layer is easy to separate with lower floor, only need remove the surface corrosion layer, can reuse below the corrosion layer, saves overhaul cost.
5. the high effect leakage proof brick of aluminium electrolysis bath that adopts preparation method of the present invention and produced, its composition, performance perameter are as follows:
A: chemical ingredients:
SiO
2 40～70％
Al
2O
3 30～60％
Fe
2O
3 3～7％
Solid additive 1～5%
Liquid wedding agent 3～15%
B: physical performance index scope:
Volume density 〉=2000kg/m
3
Compressive strength 〉=4MPa
The line velocity of variation (900 ℃ * 3h)≤-0.5%
Anti-sodium aluminum fluoride ooze the erosion index (950 ℃ * 96h)≤15
Maximum critical granularity 4mm
Aggregate size 0.21～4mm
Powder particles 0～0.2mm
≤ 0.088 particulate 〉=20%
Aggregate: powder 50～70: 30～50
250～300 ℃ of bake out temperatures
Embodiment:
Embodiment 1: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
240 parts, Al
2O
330 parts, Fe
2O
33 parts, 1 part in the mixture of aluminum phosphate and aluminium dihydrogen phosphate, 3 parts of liquid wedding agent water glass.
Above the preparation method of described high effect leakage proof brick of aluminium electrolysis bath be: with silicon-aluminium matter refractory mineral as raw material, under 1300～2700 ℃ temperature condition, carry out calcined dehydration, be ground into the mixture of aggregate and powder then, wherein, the ratio of aggregate and powder weight part is 50～70: 30～50, the granularity of aggregate is 0.21～4mm, and the granularity of powder is 0～0.2mm, smaller or equal to the particulate of 0.088mm more than or equal to 20%.The solid additive that adds described weight part in the material after pulverizing is dried to be mixed, and after stirring, adds the liquid wedding agent again, wets and grinds mixing; The mixture that obtains is carried out the detection of component concentration, after meeting the high effect leakage proof brick of aluminium electrolysis bath standard, with vibrations pressing machine vibrating forming or extrusion machine extrusion molding, under 250～300 ℃ temperature condition, dry, obtain needed high effect leakage proof brick of aluminium electrolysis bath; If do not meet standard, dose the component that is lacked, after conformance with standard, vibrations again, extrusion molding, oven dry.
Embodiment 2: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
270 parts, Al
2O
360 parts, Fe
2O
37 parts, 5 parts of pure aluminium silicate, 15 parts of liquid paper pulp.
Embodiment 3: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
245 parts, Al
2O
348 parts, Fe
2O
33 parts, 2 parts in Tai-Ace S 150,4 parts of liquid wedding agent water glass.
Embodiment 4: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
250 parts, Al
2O
355 parts, Fe
2O
37 parts, 4 parts in the mixture of pure aluminium silicate and Tai-Ace S 150,5 parts of liquid paper pulp.
Embodiment 5: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
255 parts, Al
2O
350 parts, Fe
2O
33.5 part, 3 parts in the mixture of pure aluminium silicate and aluminum phosphate, 6 parts of liquid wedding agent water glass.
Embodiment 6: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
260 parts, Al
2O
360 parts, Fe
2O
36.5 part, 1.5 parts in the mixture of Tai-Ace S 150 and aluminum phosphate, 7 parts of liquid paper pulp.
Embodiment 7: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
265 parts, Al
2O
355 parts, Fe
2O
35.5 part, 2.5 parts in the mixture of pure aluminium silicate and aluminium dihydrogen phosphate, 8 parts of liquid wedding agent water glass.
Embodiment 8: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
262 parts, Al
2O
350 parts, Fe
2O
36.2 part, 3.5 parts of aluminum phosphates, 9 parts of liquid paper pulp.
Embodiment 9: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
247 parts, Al
2O
345 parts, Fe
2O
33.8 part, 4.5 parts of aluminium dihydrogen phosphates, 10 parts of liquid paper pulp.
Embodiment 10: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
253 parts, Al
2O
340 parts, Fe
2O
34.9 part, 4.7 parts in the mixture of Tai-Ace S 150 and aluminium dihydrogen phosphate, 11 parts of liquid wedding agent water glass.
Embodiment 11: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
258 parts, Al
2O
335 parts, Fe
2O
35.3 part, 1.7 parts in Tai-Ace S 150,12 parts of liquid paper pulp.
Embodiment 12: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
262 parts, Al
2O
333 parts, Fe
2O
36.7 part, 2.4 parts of pure aluminium silicate, 13 parts of liquid wedding agent water glass.
Embodiment 13: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
245 parts, Al
2O
341 parts, Fe
2O
34 parts, 2 parts of pure aluminium silicate, 7 parts of liquid paper pulp.
Embodiment 14: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
249 parts, Al
2O
345 parts, Fe
2O
35 parts, 3 parts in the mixture of Tai-Ace S 150 and aluminium dihydrogen phosphate, 9 parts of liquid wedding agent water glass.
Embodiment 15: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
256 parts, Al
2O
350 parts, Fe
2O
36 parts, 4 parts of aluminum phosphates, 11 parts of liquid paper pulp.
Embodiment 16: the preparation method of present embodiment high effect leakage proof brick of aluminium electrolysis bath is with embodiment 1, and something in common does not repeat, and difference is: a kind of high effect leakage proof brick of aluminium electrolysis bath, form by following each component that with the weight part is unit: SiO
260 parts, Al
2O
355 parts, Fe
2O
37 parts, 5 parts in the mixture of aluminum phosphate and aluminium dihydrogen phosphate, 13 parts of liquid wedding agent water glass.
Claims (8)
1. a high effect leakage proof brick of aluminium electrolysis bath is characterized in that: be made up of following each component that with the weight part is unit: SiO
240～70 parts, Al
2O
330～60 parts, Fe
2O
33～7 parts, 1～5 part of solid additive, 3～15 parts of liquid wedding agents.
2. high effect leakage proof brick of aluminium electrolysis bath according to claim 1 is characterized in that: described solid additive be in pure aluminium silicate, Tai-Ace S 150, aluminum phosphate and the aluminium dihydrogen phosphate a kind of, two or more.
3. high effect leakage proof brick of aluminium electrolysis bath according to claim 1 is characterized in that: described liquid wedding agent is paper pulp or water glass.
4. the preparation method of each described high effect leakage proof brick of aluminium electrolysis bath of claim 1～3, its concrete steps are: with silicon-aluminium matter refractory mineral as raw material, calcined dehydration, pulverizing, the solid additive that adds described weight part is done mixed, after stirring, add the liquid wedding agent again, wet and grind mixing; The mixture that obtains is carried out the detection of component concentration, meet the high effect leakage proof brick of aluminium electrolysis bath standard after, with vibrations pressing machine vibrating forming or extrusion machine extrusion molding, oven dry, obtain needed high effect leakage proof brick of aluminium electrolysis bath; If do not meet standard, dose the component that is lacked, after conformance with standard, vibrations again, extrusion molding, baking are burnt.
5. preparation method according to claim 4 is characterized in that: described calcining temperature is 1300～2700 ℃.
6. preparation method according to claim 4 is characterized in that: described bake out temperature is 250～300 ℃.
7. preparation method according to claim 4 is characterized in that: in the material after the pulverizing, the ratio of aggregate and powder weight part is 50～70: 30～50, and wherein, the granularity of aggregate is 0.21～4mm, and the granularity of powder is 0～0.2mm.
8. preparation method according to claim 5 is characterized in that: in the material after the pulverizing, smaller or equal to the particulate of 0.088mm more than or equal to 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610048543 CN1903783A (en) | 2006-08-04 | 2006-08-04 | High effect leakage proof brick of aluminium electrolysis bath and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610048543 CN1903783A (en) | 2006-08-04 | 2006-08-04 | High effect leakage proof brick of aluminium electrolysis bath and its preparation method |
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| Publication Number | Publication Date |
|---|---|
| CN1903783A true CN1903783A (en) | 2007-01-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610048543 Pending CN1903783A (en) | 2006-08-04 | 2006-08-04 | High effect leakage proof brick of aluminium electrolysis bath and its preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030699A (en) * | 2014-05-26 | 2014-09-10 | 浙江立鑫高温耐火材料有限公司 | Aluminum-blocking brick |
| CN106882970A (en) * | 2017-02-22 | 2017-06-23 | 济源市涟源炉业有限公司 | A kind of electrolytic cell composite anti-penetrating brick |
| CN111892413A (en) * | 2020-08-26 | 2020-11-06 | 郑州中科耐火材料有限公司 | Special impermeable brick for aluminum cell lining and preparation method thereof |
-
2006
- 2006-08-04 CN CN 200610048543 patent/CN1903783A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030699A (en) * | 2014-05-26 | 2014-09-10 | 浙江立鑫高温耐火材料有限公司 | Aluminum-blocking brick |
| CN106882970A (en) * | 2017-02-22 | 2017-06-23 | 济源市涟源炉业有限公司 | A kind of electrolytic cell composite anti-penetrating brick |
| CN111892413A (en) * | 2020-08-26 | 2020-11-06 | 郑州中科耐火材料有限公司 | Special impermeable brick for aluminum cell lining and preparation method thereof |
| CN111892413B (en) * | 2020-08-26 | 2023-02-14 | 郑州中科耐火材料有限公司 | Special impermeable brick for aluminum electrolytic cell lining and preparation method thereof |
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Open date: 20070131 |