CN110342945A - A kind of dry type impervious material and preparation method thereof - Google Patents
A kind of dry type impervious material and preparation method thereof Download PDFInfo
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- CN110342945A CN110342945A CN201910631352.XA CN201910631352A CN110342945A CN 110342945 A CN110342945 A CN 110342945A CN 201910631352 A CN201910631352 A CN 201910631352A CN 110342945 A CN110342945 A CN 110342945A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
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- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- 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
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- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
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Abstract
This programme belongs to Impervious Materials field, and in particular to a kind of dry type impervious material includes 60-80 parts of gangue by weight, and 8-15 parts of andalusite, 15-23 parts of bonding agent, the place of production of the gangue is the gangue of Xinjiang region.And preparation method is also disclosed simultaneously, compared with traditional dry type impervious material, present solution provides a kind of enterprises in Xinjiang can pass through the primary raw material using Xinjiang, carry out Impervious Materials of the technologic transformation processing to produce, the production cost of enterprise is greatly reduced, the approval in market will be obtained.
Description
Technical field
This programme belongs to Impervious Materials field, and in particular to a kind of dry type impervious material and preparation method thereof.
Background technique
In aluminium cell operational process, due to the effect of the presence of hole and DC electric field in cathode block, electrolyte
(or molten aluminum) can leak under cathode block, leak down along the continuation of fire resisting brickwork joint.Cathode fire brick layer is because by melting electricity
The infiltration and steam effect for solving matter, are gradually destroyed and lose the protective effect to following insulating brick-layer, lead to aluminium cell
Damage.Therefore the refractory material of novel potential resistance to electrolyte contamination good penetrability is constantly studied.Last century Mo develops both at home and abroad
Novel aluminum electrolyzing cell used refractory material-dry type impervious material, the electrolyte that Impervious Materials can and permeate react, reaction life
It can stop and (slow down) Na and NaF melt to continue to permeate at object, to achieve the effect that antiseepage.
Number of patent application be CN200910215622.5 patent, disclose a kind of dry type impervious material, according to mass ratio into
Row proportion is as follows: 60 parts of flint clay aggregate, 6 parts of bauxite clinker, and 10 parts of ice crystal, 14 parts of nepheline, 10 parts of aluminous cement, addition
0.5 part of agent.This dry type impervious material of the present invention, anti-electrolyte osmosis is strong, and high temperature is not sintered, and good heat preservation performance is applied
Work is convenient, extends electrolytic cell service life.
However, being located at Chinese great Northwest for Xinjiang region, too far, the raw material production cost using interior ground is too high for logistics,
Has no the market competitiveness.And Xinjiang region topography is vast, there is natural resources abundant, Fig. 1 and Fig. 2 are that Xinjiang region is several main
The component content of coal mine.Therefore, if local enterprise can be carried out technologic transformation and be added by the raw material using Xinjiang
Impervious Materials of the work to produce, will obtain the approval in market.
Summary of the invention
This programme provides a kind of dry type impervious material lower-cost for the enterprise of Xinjiang region.
In order to achieve the above object, this programme provides a kind of dry type impervious material, includes by weight, gangue 60-80
Part, 8-15 parts of andalusite, 15-23 parts of bonding agent, the place of production of the gangue is the gangue of Xinjiang region.
It further, by weight include 70 parts of gangue, 10 parts of andalusite, 20 parts of bonding agent, the production of the gangue
Ground is the gangue of Xinjiang region.
Another object of the present invention is to provide a kind of preparation methods of dry type impervious material, comprising the following steps:
The first step chooses the gangue in Xinjiang, removes surface impurity, then crushes, wear into fine powder, the fine powder crosses 325
Mesh screen；
Andalusite fine powder and bonding agent is added in second step；Reach the base-material for meeting dry type impervious material index request to material allotment
Mixing fine grinding is carried out again；
Third step ageing mixture 24 hours, is then formed through 400 tons of press machines；
4th step fires the raw material stoving of compression moulding subsequently into kiln high temperature, and the firing temperature is 1350
℃；
5th step, carry out after product kiln discharge processing be crushed to actually need to particle.
Further, the coal ore of the Xinjiang region is Liuhuanggou coal mine in Xinjiang region, multicolored gulf coal mine or Yining County
The gangue of any coal mine output in the township Ka Laya Ga Qi coal mine.Liuhuanggou coal mine, multicolored gulf coal mine and Yining County Ka Laya small
The silicone content of the gangue in these three areas of odd township's coal mine is relatively high, can effectively adjust the content of other elements, worth
Impervious Materials effect is more preferable.
Further, the bonding agent uses CA-50 cement.
Compared with traditional dry type impervious material, it is mixed with various material according to physical and chemical index that we have abandoned conventional dry Impervious Materials
Way made of conjunction, pervious way cost of material are high and uneven.And our Impervious Materials are with local coal drystone and to work as
The andalusite on ground, and according to than preparing homogenizing, progress grinding, molding high temperature burns section, then presses the apparent density of dry type impervious material,
With the requirement of tap density, rationally collection with forming, stablize, low in cost by greater homogeneity.
Detailed description of the invention
Fig. 1 is the content of the main ingredient in the embodiment of the present invention in the several main coal mines in Xinjiang；
Fig. 2 is the content of the microelement in the embodiment of the present invention in the several main coal mines in Xinjiang.
Specific embodiment
Below by the further details of explanation of specific embodiment:
The raw material composition of one of present invention dry type impervious material, each embodiment and comparative example is as shown in the table:
| Serial number | Experiment case study | Gangue | Andalusite | Bonding agent |
| 1 | Embodiment 1 | 70 | 10 | 20 |
| 2 | Embodiment 2 | 60 | 15 | 15 |
| 3 | Embodiment 3 | 80 | 8 | 12 |
| 4 | Comparative example 1 | 50 | 30 | 20 |
| 5 | Comparative example 2 | 90 | 5 | 5 |
| 6 | Comparative example 3 | 70 | 10 | 20 |
| 7 | Comparative example 4 | 70 | 10 | 20 |
The preparation method of the scheme of above-mentioned serial number 1-5, the following steps are included:
The first step chooses the gangue in Xinjiang, removes surface impurity, then crushes, wear into fine powder, fine powder crosses 325 meshes
Net；
Andalusite fine powder and CA-50 cement is added in second step；Reach the base for meeting dry type impervious material index request to material allotment
Material carries out mixing fine grinding again；
Third step ageing mixture 24 hours, is then formed through 400 tons of press machines；Ageing mixture temperature is 23 DEG C；
4th step, by the raw material stoving of compression moulding, drying temperature is 110 DEG C；Subsequently into kiln high temperature fire 4 hours and
At firing temperature is 1350 DEG C；It is worth noting that, the temperature of kiln is the every 3 DEG C/min uniform risings since 110 DEG C
To 1350 DEG C.
5th step, carry out after product kiln discharge processing be crushed to actually need to particle.
The formula of the scheme of above-mentioned serial number 6 is same as Example 1, and difference is, preparation method is in the 4th step, with 5
DEG C/min 1350 DEG C are warming up to, then keep the temperature 4 hours and obtain finished product.
The formula of the scheme of above-mentioned serial number 7 is same as Example 1, and difference is, preparation method in the 4th step, with
0.5 DEG C/min is warming up to 1350 DEG C, then keeps the temperature 4 hours and obtains finished product.
Experimental result:
Judging from the experimental results, the final product quality of embodiment 1, embodiment 2 and embodiment 3 reaches existing index request, but its
Feature is, the gangue in Xinjiang is utilized, and the logistics of Xinjiang region enterprise, enterprise's production cost has been greatly reduced
It is low.
After multiple experiment and analysis, as depicted in figs. 1 and 2, the composition of the different mines of Xinjiang region is all not quite similar,
It and is then to have chosen the gangue of each main coal mine in Xinjiang respectively to be divided in embodiment 1, embodiment 2 and embodiment 3 herein
It is not testing as a result, and the gangue that is produced in Liuhuanggou coal mine, multicolored gulf coal mine or the township Yining County Ka Laya Ga Qi coal mine
Effect is more preferable.And other mining areas, some can not reach the standard of Impervious Materials to actual effect, or reach reluctantly, and quality is not
It reaches.Therefore, the gangue of Xinjiang region as described herein actually refers to Liuhuanggou coal mine, multicolored gulf coal mine or Yining County
The gangue of any mining site production in the township Ka Laya Ga Qi coal mine.
In addition, although formula herein seems fairly simple, but in fact, can find out from attached drawing 1 and attached drawing 2,
Only the gangue of Xinjiang region just makes a big difference, and the material with interior ground is even more to have bigger gap.
Comparative example 1 and comparative example 2 are then because the reason of matching, causes final product to be unsatisfactory for requiring, also embody
The range of this programme is to have passed through technical staff to obtain by the experiment innovated many times.
Comparative example 3 and comparative example 4 are then because the temperature control fired causes the quality of product to occur significantly becoming
Change, all and its is unsatisfactory for quality requirement.Actually and in this way, Impervious Materials preparation method, firing temperature, and heating mistake
Journey is crucial.Time of the identical but different heating mode of the final temperature even to heat up in addition to will lead to heating
Except different, the chemical reaction of some column complexity occurred when firing is also enough to make the least bit of poor quality of product wrong
With a thousand li.
Compared with traditional dry type impervious material, present solution provides a kind of enterprises in Xinjiang can be by utilizing Xinjiang sheet
The primary raw material on ground carries out Impervious Materials of the technologic transformation processing to produce, greatly reduces being produced into for enterprise
This, will obtain the approval in market.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (4)
1. a kind of dry type impervious material, which is characterized in that it by weight include 60-80 parts of gangue, 8-15 parts of andalusite, knot
15-23 parts of mixture, the place of production of the gangue is the gangue of Xinjiang region.
2. a kind of dry type impervious material, which is characterized in that it by weight include 70 parts of gangue, 10 parts of andalusite, bonding agent 20
Part, the place of production of the gangue is the gangue of Xinjiang region.
3. a kind of preparation method of dry type impervious material, it is characterised in that: the following steps are included:
The first step chooses the gangue in Xinjiang, removes surface impurity, then crushes, wear into fine powder, the fine powder crosses 325
Mesh screen；
Andalusite fine powder and bonding agent is added in second step；Then mixing fine grinding is carried out again；
Third step ageing mixture 24 hours, is then formed through 400 tons of press machines；
4th step fires the raw material stoving of compression moulding subsequently into kiln high temperature, and the firing temperature is 1350
℃；
5th step, carry out after product kiln discharge processing be crushed to actually need to particle.
4. according to a kind of preparation method for dry type impervious material that claim 3 is stated, it is characterised in that: the coal mine of the Xinjiang region
Stone be Liuhuanggou coal mine in Xinjiang region, in multicolored gulf coal mine or the township Yining County Ka Laya Ga Qi coal mine any coal mine output coal
Spoil.
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| CN201910631352.XA CN110342945A (en) | 2019-07-12 | 2019-07-12 | A kind of dry type impervious material and preparation method thereof |
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| CN201910631352.XA CN110342945A (en) | 2019-07-12 | 2019-07-12 | A kind of dry type impervious material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072393A (en) * | 2019-11-05 | 2020-04-28 | 内蒙古风光源节能环保科技有限公司 | Environment-friendly dry type impermeable material suitable for aluminum electrolytic cell |
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| CN101357367A (en) * | 2008-09-19 | 2009-02-04 | 昆明理工大学 | Method for processing waste cell-lining of aluminum cell using coal slack |
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2019
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| CN101357367A (en) * | 2008-09-19 | 2009-02-04 | 昆明理工大学 | Method for processing waste cell-lining of aluminum cell using coal slack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072393A (en) * | 2019-11-05 | 2020-04-28 | 内蒙古风光源节能环保科技有限公司 | Environment-friendly dry type impermeable material suitable for aluminum electrolytic cell |
| CN111072393B (en) * | 2019-11-05 | 2022-02-15 | 内蒙古风光源节能环保科技有限公司 | Environment-friendly dry type impermeable material suitable for aluminum electrolytic cell |
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