CN108996990A - A kind of folded firing method of the tunnel oven of foamed ceramic light weight board - Google Patents
A kind of folded firing method of the tunnel oven of foamed ceramic light weight board Download PDFInfo
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- CN108996990A CN108996990A CN201810687030.2A CN201810687030A CN108996990A CN 108996990 A CN108996990 A CN 108996990A CN 201810687030 A CN201810687030 A CN 201810687030A CN 108996990 A CN108996990 A CN 108996990A
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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- 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
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- 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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Abstract
The invention discloses a kind of tunnel ovens of foamed ceramic light weight board to fold firing method, it include: (1) by raw material mixing according to the ratio, and through ball milling, spray drying, obtain powder, wherein, the raw material includes ceramic polishing waste residue, clay, feldspar, foaming agent and stabilizer, and the stabilizer is manganese dioxide；(2) powder is carried out to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped at least three layers of saggar, and cloth of the saggar for powder forms；(3) kiln car push-in tunnel oven is subjected to the processing of multi-laminate burning, firing temperature is 1150-1220 DEG C, and firing period is 15-24 hours.Using the present invention, low temperature fast firing is realized, the foamed ceramic light weight board being fired into is on same section, and stomata indifference, bubble uniformity are high from top to bottom.
Description
Technical field
The present invention relates to ceramic wafer technical fields more particularly to a kind of tunnel oven of foamed ceramic light weight board to fold burning side
Method.
Background technique
(ceramic polishing is useless from the wastes such as ceramics factory's waste material and industrial waste for basis material used in foamed ceramic
Slag or cinder or stone material waste residue etc.), if these wastes are not handled, arbitrarily accumulation or landfill will be polluted the environment,
Waste resource.
The foamed ceramic product is light-weight with its, intensity is high, fire prevention, antidetonation, heat-insulated, sound insulation, strong modularity, is easy to remove
Fortune, it is widely applicable the advantages that gradually start to use in China.Again because its raw material is cinder, ceramic polishing waste residue, slag
Etc. solid waste, in terms of resource makes full use of with environmental protection have positive social effect.
The formula system of existing foamed ceramic generally comprises ceramic polishing waste residue and foaming agent, ceramic polishing waste residue dosage compared with
It is few, it is mostly 50% or so.For foaming agent additional amount 1.2% or so, additional amount is more, higher cost.Because of existing hair
Bubble brick entirety brick is thicker, and the more difficult oxidation of formula system, the formula system of foamed ceramic determines that it must use tunnel oven
Firing, the firing period of tunnel oven are generally 24-26 hours, and firing period is long, and temperature is higher.
Moreover, as shown in Figure 1, foamed ceramic plate made from the prior art, internal to form multilayer stomata.In the mistake of foaming
Cheng Zhong since foamed time is longer, and is affected by gravity, and lower layer's stomata can be crushed, so that the whole uniformity of product
It is bad.
It is basic to be manually operated in addition, the firing of existing tunnel oven is all that single layer is burnt in a heap, need a large amount of manpower, low efficiency,
It is at high cost.
Summary of the invention
Technical problem to be solved by the present invention lies in the tunnel oven for providing a kind of foamed ceramic light weight board folds burning side
Method, it is high-efficient, realize low temperature fast firing, the foamed ceramic light weight board being fired into is on same section, stomata from top to bottom
Indifference, bubble uniformity are high.
In order to solve the above-mentioned technical problems, the present invention provides a kind of tunnel ovens of foamed ceramic light weight board to fold burning side
Method, comprising:
(1) by raw material mixing according to the ratio, and through ball milling, obtain powder, wherein the raw material include ceramic polishing waste residue,
Clay, feldspar, foaming agent and stabilizer, the stabilizer are manganese dioxide；
(2) powder is carried out to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped at least three
Layer saggar, cloth of the saggar for powder form；
(3) kiln car push-in tunnel oven is subjected to the processing of multi-laminate burning, firing temperature is 1150-1220 DEG C, and firing period is
15-24 hours.
As an improvement of the above scheme, the multi-laminate burning, which is handled, includes:
(1) it is warming up to T1, T1It is 800-900 DEG C, and in T10-30min is kept the temperature,
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and keeps the temperature 0-60min in the highest temperature,
(3) slow cooling.
As an improvement of the above scheme, the multi-laminate burning, which is handled, includes:
(1) it is warming up to T1, T1It is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, 400 DEG C of liter is warming up to by 0 DEG C
Warm rate is 10-20 DEG C/min, is warming up to T by 400 DEG C1Heating rate be 1-8 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and keeps the temperature 0-60min in the highest temperature, wherein by T1It is warming up to T2's
Heating rate is 1-8 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall is 1-4 DEG C/min.
As an improvement of the above scheme, the saggar includes backing plate, coaming plate and high temperature resistant paper, and the coaming plate rides upon backing plate
Surrounding, be equipped with the high temperature resistant paper on the backing plate and coaming plate.
As an improvement of the above scheme, the backing plate is mullite backing plate, silicon carbide backing plate or cordierite backing plate；
The coaming plate is mullite coaming plate, silicon carbide coaming plate or cordierite coaming plate；
The high temperature resistant paper is aluminum silicate fiber paper.
As an improvement of the above scheme, the foamed ceramic light weight board is mainly by the raw material system of following weight percentage
At: ceramic polishing waste residue 70-96%, clay 0-10%, feldspar 0-20%, foaming agent 0.01-0.6%, stabilizer 0.1-4%.
As an improvement of the above scheme, the foamed ceramic light weight board is mainly by the raw material system of following weight percentage
At: ceramic polishing waste residue 75-95%, clay 0.1-10%, feldspar 0.1-20%, foaming agent 0.1-0.4%, stabilizer 0.1-
3%.
As an improvement of the above scheme, the clay is one of black mud, kaolin, municipal sludge, ooze or a variety of.
As an improvement of the above scheme, the foaming agent is silicon carbide or grinding head for polishing reclaimed materials, and the grinding head for polishing returns
The main component of rewinding includes silicon carbide and resin.
The invention has the following beneficial effects:
The tunnel oven that the present invention devises a completely new foamed ceramic light weight board folds firing method, realizes low temperature fast firing,
The oxidation reaction phases-time for greatly reducing formula can also grill thoroughly ceramic wafer even if shortening firing period, improve
Yield reduces the energy consumption of unit product.Moreover, the method that the present invention uses multi-laminate to burn, green body not will receive multiple-layer stacked
Influence, can also guarantee product quality, substantially increase production efficiency, and tunnel can be reduced in low temperature, grill thoroughly in the short time
The space occupied of road kiln.
The foamed ceramic light weight board includes ceramic polishing waste residue 70-96%, foaming agent 0.01-0.6%, stabilizer
0.1-4%, which increase the additional amount of ceramic polishing waste residue, the additional amount of ceramic polishing waste residue reaches as high as 96%, simultaneously will
The additional amount of foaming agent is reduced to 0.01-0.6%.On the basis of this, the manganese dioxide stabilizer of 0.1-4%, Ke Yiti is added
The uniformity of high bubble, even if in same section, stomata indifference from top to bottom, so that the whole uniformity of product is good.
Foamed ceramic light weight board good quality produced by the present invention, compression strength >=4.5Mpa, bulk density: 200-
1100Kg/m3, thermal coefficient :≤0.15W/m DEG C, combustion rating: A1 grades, water absorption rate: < 2%, radioactive indicator: IRa≤ 1.0,
Ir≤1.0。
Detailed description of the invention
Fig. 1 is the sectional view of prior art foamed ceramic light weight board；
Fig. 2 is that the tunnel oven of foamed ceramic light weight board of the present invention folds the flow chart of firing method；
Fig. 3 is the main view of kiln car of the present invention；
Fig. 4 is the left view of kiln car of the present invention；
Fig. 5 is the top view of kiln car of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
As shown in Fig. 2, the tunnel oven that the present invention provides a kind of foamed ceramic light weight board folds firing method, comprising:
S101, by raw material mixing according to the ratio, and through ball milling, spray drying, obtain powder.
Wherein, the raw material includes ceramic polishing waste residue, clay, feldspar, foaming agent and stabilizer, and the stabilizer is two
Manganese oxide.
Specifically, the foamed ceramic light weight board is mainly made of the raw material of following weight percentage: ceramic polishing is useless
Slag 70-96%, clay 0-10%, feldspar 0-20%, foaming agent 0.01-0.6%, stabilizer 0.1-4%.
Preferably, the foamed ceramic light weight board is mainly made of the raw material of following weight percentage: ceramic polishing is useless
Slag 75-95%, clay 0.1-10%, feldspar 0.1-20%, foaming agent 0.1-0.4%, stabilizer 0.1-3%.
Invention increases the additional amounts of ceramic polishing waste residue, while reducing the additional amount of foaming agent.On the basis of this, add
The manganese dioxide stabilizer for entering 0.1-4%, can be improved the uniformity of bubble, even if in same section, stomata from top to bottom
Indifference, so that the whole uniformity of product is good.The stomata of foamed ceramic light weight board entirety section is circular hole, and on to
Under pore size it is almost the same, the uniform pore diameter of firing is good.
Manganese dioxide is amphoteric oxide, it is black powder solid highly stable under a kind of room temperature.Meet reducing agent
When, oxidisability is shown as, when meeting strong oxidizer, shows as reproducibility.The prior art usually using manganese dioxide as oxidant or
Catalyst uses.The present invention is used manganese dioxide as bubble stabilizer, manganese dioxide can by with after the reacting of formula,
So that the wall of stomata is toughened up, while keeping the uniformity of formula more preferable, even if in same section, the also indifference of hole from top to bottom
It is different, it avoids stomata from being crushed, improves the uniformity of bubble, the whole uniformity of product is good.
The foaming agent is silicon carbide or grinding head for polishing reclaimed materials, and the main component of the grinding head for polishing reclaimed materials includes carbon
SiClx and resin.Silicon carbide is a kind of foamed material, and the presence of the material makes it in sintering procedure unlike conventional ceramic
It shrinks, is expansion instead, so that high-strength light ceramic wafer for building be made more to hold in size and thickness than traditional ceramics plate
It is easy to do to big and thick.Grinding head for polishing reclaimed materials is added as substrate raw material, is because grinding head for polishing ingredient itself is exactly silicon carbide
And resin, and silicon carbide is exactly the foaming agent added in inventive formulation, so the present invention can subtract the additional amount of foaming agent
As little as 0.01-0.6% reduces the dosage of foaming agent, reduces cost.
Meanwhile the ceramic polishing waste residue of 70-96% is introduced in formula, environment-protective circulating utilization is not only improved, it is also possible that
It is internal after the sintering of foamed ceramic light weight board that there is firm similar cellular hole configurations, have environmentally protective, light, square
Just it constructs, mitigate the advantages that building load.The additional amount of ceramic polishing waste residue of the present invention is far longer than existing foamed ceramic plate,
Cost is reduced, the recycling to solid waste is reinforced.
The clay is one of black mud, kaolin, municipal sludge, ooze or a variety of.Clay is added in raw material of the present invention
And feldspar, silicon, aluminium, potassium, sodium ingredient ratio in adjustable Base Formula, making to foam, brick wall is harder, and intensity is higher, and further
Waste solids are recycled.
S102, powder is subjected to cloth on kiln car.
As in Figure 3-5, the kiln car 4 includes bracket 41, and the bracket 41 is equipped at least three layers of saggar 42, the casket
Cloth of the alms bowl 42 for powder forms, and every layer of saggar 42 includes backing plate 43, coaming plate 44 and high temperature resistant paper 45, and the coaming plate 44 is set up
The high temperature resistant paper 45 is equipped in the surrounding of backing plate 43, the backing plate 43 and coaming plate 44.
Wherein, the backing plate 43 is preferably mullite backing plate, silicon carbide backing plate or cordierite backing plate, has thermal expansion coefficient
It is small, the advantages that good thermal shock stability itself is unlikely to deform and cracks, long service life.
The coaming plate 44 is preferably mullite coaming plate, silicon carbide coaming plate or cordierite coaming plate, has thermal expansion coefficient small, heat
The advantages that shake stability is good, itself is unlikely to deform and cracks, long service life.
The high temperature resistant paper 45 refers to the paper that can be subjected to 1220 DEG C of high temperature, preferably aluminum silicate fiber paper, aluminium silicate fiber
Dimension paper is made of primary raw material of wet therapy forming process of metal and stone alumina-silicate ceramic fibre cotton, has ideal under high temperature environment
Heat-insulated, heat preservation, sealing, electrical isolation, sound-absorbing, strainability.Its thermal capacity is low, thermal conductivity is low, electrical insulation capability is excellent, mechanical
Processing performance is excellent, intensity is high, it is anti-tear pull, flexibility it is high.
S103, kiln car push-in tunnel oven is subjected to the processing of multi-laminate burning, firing temperature is 1150-1220 DEG C, firing period
It is 15-24 hours.
Specifically, the multi-laminate burning processing includes:
(1) it is warming up to T1, T1It is 800-900 DEG C, and in T10-30min is kept the temperature,
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and keeps the temperature 0-60min in the highest temperature,
(3) slow cooling.
Preferably, the multi-laminate burning, which is handled, includes:
(1) it is warming up to T1, T1It is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, 400 DEG C of liter is warming up to by 0 DEG C
Warm rate is 10-20 DEG C/min, is warming up to T by 400 DEG C1Heating rate be 1-8 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and keeps the temperature 0-60min in the highest temperature, wherein by T1It is warming up to T2's
Heating rate is 1-8 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall is 1-4 DEG C/min.
More preferably, the multi-laminate burning, which is handled, includes:
(1) it is warming up to 800-900 DEG C, and in 800-900 DEG C of heat preservation 0-30min, wherein 400 DEG C of liter is warming up to by 0 DEG C
Warm rate is 15 DEG C/min, and the heating rate for being warming up to 800 DEG C by 400 DEG C is 5 DEG C/min；
(2) it is warming up to 1150-1220 DEG C, and keeps the temperature 0-60min in the highest temperature, wherein is warming up to 1150 DEG C by 800 DEG C
Heating rate is 5 DEG C/min；
(3) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1150 DEG C is 6 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Compared with prior art, low temperature and fast firing may be implemented using three stacking firing techniques in firing process of the invention,
The oxidation reaction phases-time of formula is substantially reduced, firing period shortens, output increased, and the energy consumption of unit product reduces.And
And the method that the present invention uses multi-laminate to burn, green body not will receive the influence of multiple-layer stacked, it can also be in low temperature, in the short time
It grills thoroughly, guarantees product quality, substantially increase production efficiency, and the space occupied of tunnel oven can be reduced.
The resulting foamed ceramic light weight board of the present invention is done into technology detection, as a result as follows:
| Project | The present invention |
| Compression strength | ≥4.5Mpa |
| Bulk density | 200-1100Kg/m3 |
| Thermal coefficient | ≤0.15W/m℃ |
| Combustion rating | A1 grades |
| Water absorption rate | < 2% |
| Radioactive indicator | IRa≤ 1.0, Ir≤1.0 |
Therefore, the present invention is on the basis of solving foamed ceramic light weight board internal porosity, it is ensured that it has good
Compression strength, and heat insulation effect is good, good flame resistance, and radioactive indicator is low.
With specific embodiment, the present invention is further explained below
Embodiment 1
(1) it is formulated: ceramic polishing waste residue 95.5%, foaming agent 0.5%, manganese dioxide stabilizer 4%.
(2) preparation method:
By raw material mixing according to the ratio, and through ball milling, powder is obtained；
Powder is subjected to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped with three layers of saggar,
Cloth of the saggar for powder forms；
Kiln car push-in tunnel oven is subjected to three stacking burning processing, process for calcining is as follows:
(a) 800 DEG C are warming up to, and in 800 DEG C of heat preservation 20min, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 10
DEG C/min, the heating rate for being warming up to 800 DEG C by 400 DEG C is 3 DEG C/min；
(b) 1150 DEG C are warming up to, and keeps the temperature 40min in the highest temperature, wherein is warming up to 1150 DEG C of heating speed by 800 DEG C
Rate is 3 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1150 DEG C is 3 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall be 1 DEG C/min.
Embodiment 2
(1) it is formulated: ceramic polishing waste residue 90%, clay 1%, feldspar 8.8%, foaming agent 0.1%, stabilizer 0.1%.
(2) preparation method:
By raw material mixing according to the ratio, and through ball milling, powder is obtained；
Powder is subjected to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped with three layers of saggar,
Cloth of the saggar for powder forms；
Kiln car push-in tunnel oven is subjected to three stacking burning processing, process for calcining is as follows:
(a) 820 DEG C are warming up to, and in 820 DEG C of heat preservation 15min, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 15
DEG C/min, the heating rate for being warming up to 820 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1170 DEG C are warming up to, and keeps the temperature 30min in the highest temperature, wherein is warming up to 1170 DEG C of heating speed by 820 DEG C
Rate is 4 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1170 DEG C is 4 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 3
(1) it is formulated: ceramic polishing waste residue 92%, clay 5%, feldspar 2%, foaming agent 0.2%, stabilizer 0.8%.
(2) preparation method:
By raw material mixing according to the ratio, and through ball milling, powder is obtained；
Powder is subjected to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped with three layers of saggar,
Cloth of the saggar for powder forms；
Kiln car push-in tunnel oven is subjected to three stacking burning processing, process for calcining is as follows:
(a) 830 DEG C are warming up to, and in 830 DEG C of heat preservation 25min, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 15
DEG C/min, the heating rate for being warming up to 830 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1180 DEG C are warming up to, and keeps the temperature 0-60min in the highest temperature, wherein is warming up to 1180 DEG C of heating by 830 DEG C
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1180 DEG C is 5 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 4
(1) it is formulated: ceramic polishing waste residue 88%, clay 2%, feldspar 8%, foaming agent 0.1%, stabilizer 1.9%.
(2) preparation method:
By raw material mixing according to the ratio, and through ball milling, powder is obtained；
Powder is subjected to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped with three layers of saggar,
Cloth of the saggar for powder forms；
Kiln car push-in tunnel oven is subjected to three stacking burning processing, process for calcining is as follows:
(a) 850 DEG C are warming up to, and in 850 DEG C of heat preservation 30min, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 16
DEG C/min, the heating rate for being warming up to 850 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1200 DEG C are warming up to, and keeps the temperature 50min in the highest temperature, wherein is warming up to 1200 DEG C of heating speed by 850 DEG C
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1200 DEG C is 6 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 5
(1) it is formulated: ceramic polishing waste residue 80%, clay 10%, feldspar 7.7%, foaming agent 0.3%, stabilizer 2%.
(2) preparation method:
By raw material mixing according to the ratio, and through ball milling, powder is obtained；
Powder is subjected to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped with three layers of saggar,
Cloth of the saggar for powder forms；
Kiln car push-in tunnel oven is subjected to three stacking burning processing, process for calcining is as follows:
(a) 860 DEG C are warming up to, and in 860 DEG C of heat preservation 10min, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 17
DEG C/min, the heating rate for being warming up to 860 DEG C by 400 DEG C is 6 DEG C/min；
(b) 1210 DEG C are warming up to, and keeps the temperature 30min in the highest temperature, wherein is warming up to 1210 DEG C of heating speed by 860 DEG C
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1210 DEG C is 6 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 6
(1) it is formulated: ceramic polishing waste residue 75%, clay 1.6%, feldspar 20%, foaming agent 0.4%, stabilizer 3%.
(2) preparation method:
By raw material mixing according to the ratio, and through ball milling, powder is obtained；
Powder is subjected to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped with three layers of saggar,
Cloth of the saggar for powder forms；
Kiln car push-in tunnel oven is subjected to three stacking burning processing, process for calcining is as follows:
(a) 900 DEG C are warming up to, and in 900 DEG C of heat preservation 30min, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 20
DEG C/min, the heating rate for being warming up to 900 DEG C by 400 DEG C is 8 DEG C/min；
(b) 1220 DEG C are warming up to, and keeps the temperature 60min in the highest temperature, wherein is warming up to 1220 DEG C of heating speed by 900 DEG C
Rate is 8 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1220 DEG C is 9 DEG C/min, is cooled to 50 DEG C by 600 DEG C
Rate of temperature fall be 4 DEG C/min.
The resulting foamed ceramic light weight board of embodiment 1-6 is done into technology detection, as a result as follows:
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should
Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention
And range.
Claims (9)
1. a kind of tunnel oven of foamed ceramic light weight board folds firing method characterized by comprising
(1) by raw material mixing according to the ratio, and through ball milling, obtain powder, wherein the raw material include ceramic polishing waste residue, clay,
Feldspar, foaming agent and stabilizer, the stabilizer are manganese dioxide；
(2) powder is carried out to cloth on kiln car, wherein the kiln car includes bracket, and the bracket is equipped at least three layers of casket
Alms bowl, cloth of the saggar for powder form；
(3) kiln car push-in tunnel oven is subjected to the processing of multi-laminate burning, firing temperature is 1150-1220 DEG C, firing period 15-24
Hour.
2. the tunnel oven of foamed ceramic light weight board as described in claim 1 folds firing method, which is characterized in that the multi-laminate
Burning is handled
(1) it is warming up to T1, T1It is 800-900 DEG C, and in T10-30min is kept the temperature,
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and keeps the temperature 0-60min in the highest temperature,
(3) slow cooling.
3. the tunnel oven of foamed ceramic light weight board as claimed in claim 2 folds firing method, which is characterized in that the multi-laminate
Burning is handled
(1) it is warming up to T1, T1It is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, 400 DEG C of heating speed is warming up to by 0 DEG C
Rate is 10-20 DEG C/min, is warming up to T by 400 DEG C1Heating rate be 1-8 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and keeps the temperature 0-60min in the highest temperature, wherein by T1It is warming up to T2Heating speed
Rate is 1-8 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, and 50 DEG C of cooling speed is cooled to by 600 DEG C
Rate is 1-4 DEG C/min.
4. the tunnel oven of foamed ceramic light weight board as described in claim 1 folds firing method, which is characterized in that the saggar packet
Backing plate, coaming plate and high temperature resistant paper are included, the coaming plate rides upon the surrounding of backing plate, and the resistance to height is equipped on the backing plate and coaming plate
Warm paper.
5. the tunnel oven of foamed ceramic light weight board as claimed in claim 4 folds firing method, which is characterized in that the backing plate is
Mullite backing plate, silicon carbide backing plate or cordierite backing plate；
The coaming plate is mullite coaming plate, silicon carbide coaming plate or cordierite coaming plate；
The high temperature resistant paper is aluminum silicate fiber paper.
6. the tunnel oven of foamed ceramic light weight board as described in claim 1 folds firing method, which is characterized in that the foaming pottery
Porcelain light weight board is mainly made of the raw material of following weight percentage:
Ceramic polishing waste residue 70-96%, clay 0-10%, feldspar 0-20%, foaming agent 0.01-0.6%, stabilizer 0.1-4%.
7. the tunnel oven of foamed ceramic light weight board as claimed in claim 6 folds firing method, which is characterized in that the foaming pottery
Porcelain light weight board is mainly made of the raw material of following weight percentage:
Ceramic polishing waste residue 75-95%, clay 0.1-10%, feldspar 0.1-20%, foaming agent 0.1-0.4%, stabilizer 0.1-
3%.
8. the tunnel oven of foamed ceramic light weight board as claimed in claims 6 or 7 folds firing method, which is characterized in that described viscous
Soil is one of black mud, kaolin, municipal sludge, ooze or a variety of.
9. the tunnel oven of foamed ceramic light weight board as claimed in claims 6 or 7 folds firing method, which is characterized in that the hair
Infusion is silicon carbide or grinding head for polishing reclaimed materials, and the main component of the grinding head for polishing reclaimed materials includes silicon carbide and resin.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687030.2A CN108996990A (en) | 2018-06-28 | 2018-06-28 | A kind of folded firing method of the tunnel oven of foamed ceramic light weight board |
| PCT/CN2018/100135 WO2020000592A1 (en) | 2018-06-28 | 2018-08-11 | Tunnel kiln stack firing method for foamed ceramic lightweight board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687030.2A CN108996990A (en) | 2018-06-28 | 2018-06-28 | A kind of folded firing method of the tunnel oven of foamed ceramic light weight board |
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| CN108996990A true CN108996990A (en) | 2018-12-14 |
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|---|---|---|---|
| CN201810687030.2A Pending CN108996990A (en) | 2018-06-28 | 2018-06-28 | A kind of folded firing method of the tunnel oven of foamed ceramic light weight board |
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| WO (1) | WO2020000592A1 (en) |
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| CN110981532A (en) * | 2019-12-17 | 2020-04-10 | 佛山欧神诺陶瓷有限公司 | Foaming agent, foaming material, composite foamed ceramic and preparation method thereof |
| CN111170759A (en) * | 2020-01-13 | 2020-05-19 | 山东晟世达科技有限公司 | Method for manufacturing non-mould naked-firing foamed ceramic |
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| CN103332958A (en) * | 2013-07-09 | 2013-10-02 | 广东天弼陶瓷有限公司 | Foamed ceramic with gradient pore structure and preparation method thereof |
| CN103707401A (en) * | 2012-09-28 | 2014-04-09 | 江苏金久科技新材料有限公司 | Sintering mold for forming of foaming ceramics |
| CN104481101A (en) * | 2014-11-03 | 2015-04-01 | 北京璞晶科技有限公司 | Inorganic thermal insulating decorative panel and production process thereof |
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| CN103707401A (en) * | 2012-09-28 | 2014-04-09 | 江苏金久科技新材料有限公司 | Sintering mold for forming of foaming ceramics |
| CN103332958A (en) * | 2013-07-09 | 2013-10-02 | 广东天弼陶瓷有限公司 | Foamed ceramic with gradient pore structure and preparation method thereof |
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| CN110981532A (en) * | 2019-12-17 | 2020-04-10 | 佛山欧神诺陶瓷有限公司 | Foaming agent, foaming material, composite foamed ceramic and preparation method thereof |
| CN110981532B (en) * | 2019-12-17 | 2021-11-09 | 佛山欧神诺陶瓷有限公司 | Foaming agent, foaming material, composite foamed ceramic and preparation method thereof |
| CN111170759A (en) * | 2020-01-13 | 2020-05-19 | 山东晟世达科技有限公司 | Method for manufacturing non-mould naked-firing foamed ceramic |
| CN111170759B (en) * | 2020-01-13 | 2022-04-29 | 山东晟世达科技有限公司 | Method for manufacturing non-mould naked-firing foamed ceramic |
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| WO2020000592A1 (en) | 2020-01-02 |
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Application publication date: 20181214 |