CN109203244A - A kind of method and device preparing foam concrete based on aeration method - Google Patents
A kind of method and device preparing foam concrete based on aeration method Download PDFInfo
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- CN109203244A CN109203244A CN201811148201.0A CN201811148201A CN109203244A CN 109203244 A CN109203244 A CN 109203244A CN 201811148201 A CN201811148201 A CN 201811148201A CN 109203244 A CN109203244 A CN 109203244A
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- aeration
- aerator
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- 239000011381 foam concrete Substances 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000005273 aeration Methods 0.000 title claims abstract description 58
- 239000004567 concrete Substances 0.000 claims abstract description 102
- 239000002002 slurry Substances 0.000 claims abstract description 91
- 238000003756 stirring Methods 0.000 claims abstract description 75
- 238000005276 aerator Methods 0.000 claims abstract description 72
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000012423 maintenance Methods 0.000 claims abstract description 35
- 238000002360 preparation method Methods 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 28
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 239000010802 sludge Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 42
- 239000007789 gas Substances 0.000 claims description 30
- 239000006260 foam Substances 0.000 claims description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000006265 aqueous foam Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 206010001497 Agitation Diseases 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 5
- 238000005345 coagulation Methods 0.000 claims description 5
- 230000015271 coagulation Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims 1
- 239000011454 mudbrick Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 29
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 16
- 102000004169 proteins and genes Human genes 0.000 description 9
- 108090000623 proteins and genes Proteins 0.000 description 9
- 239000002689 soil Substances 0.000 description 9
- 239000003381 stabilizer Substances 0.000 description 9
- 239000004088 foaming agent Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012490 blank solution Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
- B28C5/388—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/0235—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being provided with agitating means, e.g. stirring vanes to avoid premature setting of the moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/383—Producing cellular concrete comprising stirrers to effect the mixing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The present invention relates to concrete preparation field, in particular to a kind of method and device that foam concrete is prepared based on aeration method, the method specifically comprises the following steps: step 1: raw material preparation；Step 2: raw material mixing；Step 3: aeration stirring；Step 4: maintenance molding；Make to introduce air-flow towards Stirring mechanism by aerator, under the rotary action of Stirring mechanism, air-flow is evenly dispersed by Stirring mechanism, several bubbles are formed in concrete slurry, after concrete slurry solidification, obtain the foam concrete for the hole for having several uniform in size and stable, realize the preparation of foam concrete, preparation method is simple and environmentally-friendly, optimize the preparation process of foam concrete, and it is more environmentally friendly to use foam concrete obtained, described device structure is simple, it can be according to the actual situation, the gas of heterogeneity is introduced using aerator, make foam concrete obtained that there is different characteristics, improve the using effect and the scope of application of foam concrete obtained.
Description
Technical field
The present invention relates to concrete preparation field, in particular to a kind of method that foam concrete is prepared based on aeration method
And device.
Background technique
Foam concrete is a kind of novel light insulation material containing a large amount of sealed porositys, existing foam concrete
Foaming stirring usually has physical blowing and two kinds of chemical blowing, and chemical blowing is that foaming substance and foam stabilizing are mixed in cement slurry
Agent generates gas and forms foam slurry, its main feature is that foam is generated by chemical reaction, be after cement and water hybrid reaction
Synchronous in cement slurry whipping process to generate, physical blowing is to mix surfactant, foam stabilizer and water in proportion, by
Mechanical high-speed stirring generates bubble, then foam is added in cement slurry and is stirred, and blanks and moulding and conserving forms foam concrete, special
Sign is that first system bubble remixes.
But either physical blowing or chemical blowing, foam concrete intensity obtained is lower, density is larger,
Pore structure is simultaneously unstable, leads to that stable foam concrete water absorption rate height is made, is easy to happen certain volume contraction, influences to build
Structure durability, and must be added to foam stabilizer, foaming agent and surfactant, cause the preparation cost of foam concrete higher,
The research difficulty to such material is increased, the research and development of new material are unfavorable for.
In conclusion there is an urgent need for a kind of technical solutions at present, solving the existing process for preparing foam concrete be must be added to
Foam stabilizer, foaming agent and surfactant cause foam mixed mud preparation cost higher, increase the research and development of new material
Difficulty, and the technical problem that foam concrete intensity obtained is lower, pore structure is unstable.
Summary of the invention
It is an object of the invention to: for the existing process for preparing foam concrete must be added to foam stabilizer, foaming agent and
Surfactant causes foam mixed mud preparation cost higher, increases the difficulty of the research and development of new material, and bubble obtained
The technical problem that foam concrete intensity is lower, pore structure is unstable provides one kind based on aeration method and prepares foam coagulation
The method and device of soil.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A method of foam concrete is prepared based on aeration method, specifically comprises the following steps: step 1: raw material preparation: according to
Concrete proportioning prepares raw material；Step 2: raw material mixing: the raw material that step 1 is prepared are mixed using superposition feed way,
Concrete initial slurry is made；Step 3: aeration stirring: before concrete initial slurry initial set, concrete initial slurry being added
It is provided in the agitating device of Stirring mechanism, and aerator is set in agitating device and is filled towards Stirring mechanism
Gas stirs evenly obtained concrete slurry；Step 4: maintenance molding: concrete slurry injection mold is made in step 3, is maintained into
Type.
A kind of method preparing foam concrete based on aeration method of the invention, is stirred process in concrete slurry
In, air-flow is introduced towards Stirring mechanism by aerator, under the rotary action of Stirring mechanism, air-flow is rotated
Rabbling mechanism is evenly dispersed, and several bubbles are formed in concrete slurry, after concrete slurry solidification, obtains having several big
The foam concrete of the hole of small uniform, stable realizes the preparation of foam concrete, and preparation method is simple and environmentally-friendly, does not need to add
Add the additives such as foaming agent, foam stabilizer, reduces the technique step for adding foaming agent, foam stabilizer etc. in foam concrete preparation process
Suddenly, the preparation process of foam concrete is optimized, and it is more environmentally friendly to use foam concrete obtained, simultaneously as passing through exposure
The gas that device of air is introduced into forms bubble and is wrapped in concrete slurry, so that having in the hole in the foam concrete formed
There is gas, is conducive to the waterproof and flameproof effect that improve foam concrete obtained, expands foam concrete made from this method
The scope of application, meanwhile, the gas of heterogeneity can be introduced using aerator according to the actual situation, keep foam obtained mixed
Solidifying soil has different characteristics, further increases the using effect and the scope of application of foam concrete obtained.
Preferably, raw material described in step 1 include sludge material, the sludge material passes through drying and other treatment by domestic sludge
It is made, the domestic sludge is that sewage treatment plants carry out the sludge slurry generated after sewage treatment.By using domestic sludge
On the one hand sludge material obtained provides preferable utilization ways, another party as raw material for the resource utilization of domestic sludge
Face, due to being rich in various albumen, colloid, born of the same parents during concrete slurry aeration stirring, in domestic sludge in domestic sludge
The protein substances such as outer polymer, larger molecular organics, it is common in the gas that hydrated reaction of cement adstante febre and aerator introduce
Effect, is fully hydrolyzed and is aoxidized, and water and bubble are formed, and is removed harmful substance, is conducive to further increase foam obtained
The porosity of concrete, makes foam concrete environmental protection obtained and using effect is more preferable.
Preferably, aeration stirring described in step 3 includes stirring operation at least twice, each time stirring of stirring operation
Speed is different.Using the stirring operation of multiple different mixing speeds, so that the raw material in concrete slurry are uniformly mixed, wherein
Bubble dispersed that smaller, quantity is more, size is more uniform, be further conducive to that the stable foam coagulation of uniform quality is made
Soil.
Preferably, maintenance molding described in step 4 includes at least maintenance operations three times, the temperature of maintenance operations each time
It is different.The maintenance that foam concrete is carried out using the care environments of different temperatures, makes the raw material in concrete slurry in difference
It is sufficiently reacted under environment temperature, when being added to sludge material in concrete slurry, is also beneficial to through multiple varying environment
Maintenance be fully hydrolyzed the protein substance in domestic sludge under the collective effect of hydration heat temperature and environment temperature, mixed
Stomata is formed in solidifying soil paste material, these stomatas are stored in concrete slurry obtained by intact, and further increase is made
Foam concrete in the hole containing gas, keep foam concrete quality obtained lighter, heat insulation effect is preferable, is applicable in model
It encloses wider.
Preferably, the step 3 specifically comprises the following steps: step 3.1: primary stirring: 20 r/min of mixing speed
- 30r/min, mixing time at least 3min；Step 3.2: secondary agitation: 40 r/min -50r/min of mixing speed, mixing time
At least 3min.Using different mixing speeds, and mixing speed is arranged to lower, Stirring mechanism drive concrete grout stream
It is dynamic that slowly the gas that aerator introduces is moved with the flowing of concrete slurry, since the viscosity of concrete slurry is larger,
Gas is easier limited in concrete slurry, and the flowing with concrete slurry is uniformly dispersed, and further makes concrete
Raw material in slurry are uniformly mixed, and raw material sufficiently react, and are made to introduce bubble therein by aerator and are dispersed into greatly
Small uniform state makes the foam concrete of lightweight obtained and uniform quality, when being added to sludge material in concrete slurry,
In whipping process, gas therein not only bubble easy to form is introduced by aerator, but also be easy and having in sludge material
Machine object comes into full contact with, and is substantially oxidized the organic matter in sludge material, makes the foam concrete obtained that joined sludge material
With environment friendly and pollution-free, also accordingly reduce the preparation cost of foam concrete.
Preferably, the step 4 specifically comprises the following steps: step 4.1: concrete grout insulated curing: will be filled with
The mold of material carries out demoulding after insulated curing, foam concrete blank is made, 35 DEG C -36 DEG C of holding temperature, soaking time is at least
24h；Step 4.2: heating maintenance: being made concrete blank for step 4.1 and carry out heating maintenance, and resistance aqueous foam concrete is made,
92 DEG C -98 DEG C of curing temperature, curing time at least 72h；Step 4.3: resistance aqueous foam concrete ventilation maintenance: being placed on ventilation
Under environment, maintenance to the obvious visual washmarking of nothing, obtained foam concrete, 5 DEG C -10 DEG C of curing temperature.By by concrete slurry
By preliminary insulated curing, solid blank is formed, then blank is subjected to heating maintenance, makes the abundant water of sludge material in blank
Solution, by the interaction of warm temperature and hydrated cementitious temperature, is fully hydrolyzed the protein substance in sludge material, then by logical
Wind maintenance distributes moisture, further makes the preparation process of foam concrete simple, and make foam using the characteristic of sludge material
Concrete using effect is lighter compared with regular-type foam concrete mass per volume, and preparation cost is lower, and preparation process is simpler, protects
Temp effect is more preferable.
A kind of device preparing foam concrete based on aeration method, including agitating device, the interior setting of the agitating device
There is the accommodating chamber for containing slurry, Stirring mechanism and at least one aerator are provided in the accommodating chamber, it is described
Aerator is connected with feeder, and the aerator is inflated towards the Stirring mechanism.
A kind of device preparing foam concrete based on aeration method of the invention, by the accommodating chamber of agitating device
Aerator is set, and aerator is imported into gas towards Stirring mechanism, keeps concrete slurry same in whipping process
When receive aeration operation, keep concrete slurry mixing more uniform, meanwhile, the Stirring of the gas of importing in Stirring mechanism
It under effect, is evenly dispersed in concrete slurry, makes to be formed and contain the concrete slurry of more bubble, to be used to prepare bubble
Foam concrete, apparatus structure is simple, optimizes the preparation process of foam concrete, can by adjusting aerator aeration quantity,
The ingredient of inflationtime and the gas of importing makes the foam concrete that different performance is made, and the scope of application is wider, is conducive to foam
The preparation of concrete.
Preferably, the feeder is making oxygen by air separation machine, make the aerator towards the Stirring mechanism
It is oxygenated.It uses making oxygen by air separation machine to provide oxygen for aerator, introduces oxygen into the concrete slurry in stirring, on the one hand
Make to form several oxygen bubbles of uniform size in concrete slurry, keeps foam concrete obtained uniform in material, heat preservation effect
Fruit is preferable, on the other hand, reacts the material containing protein substance added in oxygen and concrete slurry sufficiently, makes therein
Albumen is fully hydrolyzed, and organic matter therein is fully oxidized, increases the number of bubbles in concrete slurry, is further increased obtained
The porosity of foam concrete makes that the better foam concrete of using effect is made.
Preferably, being provided with air inlet pipe on the aerator, it is provided on the agitating device and the air inlet pipe
The limiting slot of adaptation, the air inlet pipe and the separable connection of the limiting slot, are limited in agitating device for the aerator
It is interior.By the limiting slot cooperation in the air inlet pipe and agitating device on aerator, aerator and agitating device position are realized
It is relatively fixed, facilitate the installation and taking-up of aerator, keep the setting of aerator more convenient, can be according to concrete slurry
Actual volume amount adjusts the quantity of aerator and aeration direction in agitating device, keeps aeration effect more preferable, foam obtained is mixed
The using effect for coagulating soil is more preferable.
Preferably, being provided with several ventholes on the aerator, the venthole aperture is micron order.Using tool
There is the aerator of micron order venthole, so that aerator is introduced into the bubble volume in concrete slurry smaller, by concrete grout
The restriction effect of material is coated in concrete slurry by preferable retention, is avoided bubble excessive and is risen along concrete slurry, breaks
Dispersion enters in air, makes to include more bubble uniform in size, stable structure in foam concrete obtained, made from guarantee
The using effect of foam concrete.
In conclusion by adopting the above-described technical solution, one kind of the invention, which is based on aeration method, prepares foam coagulation
The beneficial effect of the method for soil is:
1, during concrete slurry is stirred, air-flow is introduced towards Stirring mechanism by aerator, is being rotated
Under the rotary action of rabbling mechanism, air-flow is evenly dispersed by Stirring mechanism, and several bubbles are formed in concrete slurry, to
After concrete slurry solidification, the foam concrete for the hole for having several uniform in size and stable is obtained, realizes foam concrete
Preparation, preparation method is simple and environmentally-friendly, does not need addition foaming agent, the additives such as foam stabilizer；
2, the processing step for reducing addition foaming agent, foam stabilizer etc., optimizes the preparation process of foam concrete, and make to be made
Foam concrete using more environmentally friendly；
3, it is wrapped in concrete slurry since the gas being introduced by aerator forms bubble, so that the foam formed is mixed
There is gas in hole in solidifying soil, be conducive to the waterproof and flameproof effect that improve foam concrete obtained, expand this method
The scope of application of foam concrete obtained；
4, the gas of heterogeneity can be introduced using aerator according to the actual situation, there is foam concrete obtained not
Same characteristic further increases the using effect and the scope of application of foam concrete obtained；
A kind of beneficial effect of device preparing foam concrete based on aeration method of the invention is:
1, by the way that aerator is arranged in the accommodating chamber of agitating device, and aerator is imported into gas towards Stirring mechanism
Body makes concrete slurry in whipping process while receiving aeration operation, keeps concrete slurry mixing more uniform；
2, the gas imported is evenly dispersed in concrete slurry under the Stirring effect of Stirring mechanism, makes shape
At the concrete slurry of more bubble is contained, to be used to prepare foam concrete；
3, apparatus structure is simple, optimizes the preparation process of foam concrete, can by adjusting aerator aeration quantity, inflation
The ingredient of the gas of time and importing makes the foam concrete that different performance is made, and the scope of application is wider, is conducive to foam coagulation
The preparation of soil.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of method that foam concrete is prepared based on aeration method of embodiment 1；
Fig. 2 is a kind of flow diagram of method that foam concrete is prepared based on aeration method of embodiment 2；
Fig. 3 is a kind of structural schematic diagram of device that foam concrete is prepared based on aeration method of embodiment 3；
Fig. 4 is the schematic diagram of the section structure of Fig. 3；
Fig. 5 is the schematic diagram of internal structure of agitating device；
The structural schematic diagram at another visual angle Fig. 6 Fig. 5.
Appended drawing reference
1- agitating device, 11- accommodating chamber, 12- limiting slot, 2- Stirring mechanism, 21- rotation axis, 22- rotating vane, 3- expose
Device of air, 31- shell, 32- aeration head, 4- feeder, 5- air inlet pipe, 6- capping, 7- power mechanism.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain this hair
It is bright, it is not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, a kind of method for preparing foam concrete based on aeration method, specifically comprises the following steps: step 1: former
Material is equipped with: according to concrete proportioning, preparing raw material；Step 2: raw material mixing: the raw material that step 1 is prepared are added using superposition
Material mode mixes, and concrete initial slurry is made；Step 3: aeration stirring: before concrete initial slurry initial set, by concrete
Initial slurry addition is provided in the agitating device of Stirring mechanism, and aerator is arranged towards rotation in agitating device
Rabbling mechanism inflation, stirs evenly obtained concrete slurry；Step 4: concrete slurry injection maintenance molding: is made in step 3
Mold, maintenance molding.
A kind of method preparing foam concrete based on aeration method of the present embodiment, was stirred in concrete slurry
Cheng Zhong introduces air-flow towards Stirring mechanism by aerator, on the one hand by the rotation of Stirring mechanism by air-flow
Be uniformly dispersed, on the other hand by the fluxion strap of slurry take offence flow point dissipate, make by aerator introduce air-flow uniformly divided
It is scattered in slurry, while being influenced by the viscosity of concrete slurry, formation bubble volume is smaller, respectively independent, it is not easy to poly-
Air pocket is synthesized, makes to import the bubble that air-flow is formed and is evenly dispersed, stablizes and be stored in concrete slurry, to concrete slurry
After solidification, obtain having several uniform in size, foam concrete of hole for being evenly distributed, and foam concrete structure obtained
Stablize, uniform quality, when being prepared, the raw material of foam concrete will be used to prepare in advance, such as: gather materials, cementitious material,
Water etc. is pre-mixed uniformly using superposition feed way, concrete initial slurry is made, the superposition feed way is will be each
It after kind of raw material carry out respectively several pieces in advance, puts in order by raw material, that selects in a kind of raw material every time a carries out
Mixing keeps raw material mixing more uniform, reinjects the agitating device for being provided with aerator until all mixing finishes raw material
Middle carry out aeration stirring makes concrete initial slurry receive aeration operation during stirring, in concrete initial slurry
More bubble is formed, concrete slurry is made, preparation process reduces the technique step of the additives such as addition foaming agent, foam stabilizer
Suddenly, not only make foam concrete preparation process obtained simple, cost is relatively low, also due to various additives are not added with, so that system
For the foam concrete obtained using environmental protection, pollution-free, cost reduction, the scope of application is wider.
Preferably, can according to the actual situation, using aerator towards Stirring mechanism introduce air, carbon dioxide,
Any one of nitrogen, oxygen or inert gas etc. make in foam concrete obtained to include several containing heterogeneity gas
The bubble of body, and then the use characteristic of foam concrete is adjusted, make foam concrete heat-preserving excellent effect obtained, the scope of application
It is relatively wide.
Embodiment 2
As shown in Figs. 1-2, a kind of method that foam concrete is prepared based on aeration method of the present embodiment, preparation flow and implementation
Example 1 is identical, and difference is: raw material described in step 1 include sludge material, and the sludge material passes through drying and other treatment by domestic sludge
It is made, the domestic sludge is that sewage treatment plants carry out the sludge slurry generated after sewage treatment.
A kind of method that foam concrete is prepared based on aeration method of the present embodiment, by using made from domestic sludge
On the one hand sludge material provides preferable utilization ways as raw material for the resource utilization of domestic sludge, and by desiccation
The sludge material of reason eliminates the large quantity of moisture in domestic sludge, eliminates most heavy metal, makes to use the conduct of sludge material
For foam concrete made from raw material using environment friendly and pollution-free, the scope of application is wider, on the other hand, due to being rich in domestic sludge
Various protein substances, during concrete slurry aeration stirring, colloid, extracellular polymeric in domestic sludge, macromolecular have
The protein substances such as machine object are fully hydrolyzed, the oxygen in the air being introduced into aerator in hydrated reaction of cement adstante febre
It is fully oxidized, water and bubble are formed, harmful substance is removed, the gas that cooperation aerator introduces further increases bubble obtained
The porosity of foam concrete, makes foam concrete environmental protection obtained and heat insulation effect is more preferable.
Preferably, aeration stirring described in step 3 includes stirring operation at least twice, each time the stirring speed of stirring operation
Degree is different, and maintenance molding described in step 4 includes at least maintenance operations three times, and the temperature of maintenance operations is different each time.This reality
It applies a kind of of example and the method for foam concrete is prepared as using sludge material conduct made from domestic sludge based on aeration method
Raw material makes sludge material using the maintenance operations of the care environments of the stirring operation and different temperatures of multiple different mixing speeds
It is uniformly mixed with other raw material in concrete, is dispersed smaller by the gas that aerator introduces, quantity is more, and size is equal
Even, the protein substance in sludge material is fully hydrolyzed and aoxidizes, and stomata is formed in concrete slurry, increases porosity, makes to be made
Foam concrete uniform quality, stable structure, heat insulation effect is preferable, and the scope of application is wider.
Preferably, the step 3 specifically comprises the following steps: step 3.1: primary stirring: 20 r/min of mixing speed-
30r/min, mixing time at least 3min；Step 3.2: secondary agitation: 40 r/min -50r/min of mixing speed, mixing time
At least 3min.It is preferred that the mixing speed once stirred is 20r/min, the mixing speed of secondary agitation is 30r/min, preferably once
Alternately, the gas for introducing aerator is uniformly dispersed for stirring and secondary agitation, is filled with the protein substance in sludge material
Tap touching uses foam concrete obtained environment friendly and pollution-free in producing bubbles inside in concrete slurry maintenance processes,
Quality is more stable, and the scope of application is wider.
Preferably, the step 4 specifically comprises the following steps: step 4.1: insulated curing: will be filled with concrete slurry
Mold carry out insulated curing after demoulding, be made foam concrete blank, 35 DEG C -36 DEG C of holding temperature, soaking time is at least
24h；Step 4.2: heating maintenance: being made concrete blank for step 4.1 and carry out heating maintenance, and resistance aqueous foam concrete is made,
92 DEG C -98 DEG C of curing temperature, curing time at least 72h；Step 4.3: resistance aqueous foam concrete ventilation maintenance: being placed on ventilation
Under environment, maintenance to the obvious visual washmarking of nothing, obtained foam concrete, 5 DEG C -10 DEG C of curing temperature.By by concrete slurry
By preliminary insulated curing, make concrete slurry curing molding, then blank is subjected to heating maintenance, cooperates hydrated cementitious temperature
And warm temperature, so that the sludge material in blank is fully hydrolyzed and is aoxidized, then remove extra moisture by ventilation maintenance, makes to be made
Foam concrete not only simple process, preparation is convenient, and preparation cost is lower, and heat insulation effect and using effect are compared with regular-type foam
Concrete, mass per volume is lighter, and preparation cost is lower, and preparation process is simpler, due to the bubble that it is rich in, but also its
Heat insulation effect is more preferable.
Embodiment 3
As shown in figures 1 to 6, a kind of device preparing foam concrete based on aeration method, including agitating device 1, the stirring dress
The accommodating chamber 11 being provided in 1 for containing slurry is set, is provided with Stirring mechanism 2 and at least one in the accommodating chamber 11
Aerator 3, the aerator 3 are connected with feeder 4, and the aerator 3 is filled towards the Stirring mechanism 2
Gas.
A kind of device preparing foam concrete based on aeration method of the present embodiment, the preferably described agitating device 1 is in vertical
The box-structure of cube formula is respectively provided with aerator 3 in 1 inside quadrangle of agitating device, and the aerator 3 includes 31 He of shell
Air inlet pipe 5 on shell 31 is set, and the shell 31 is whole cylindric in 1/4, is provided in the arc surface side of shell 31
At least one aeration head 32, the aeration head 32 are connected to air inlet pipe 5, and air inlet pipe 5 is removably connected with gas supply by pipeline
Device 4, when feeder 4 works, feeder 4, towards gas is supplied inside shell 31, makes gas from aeration by pipeline
First 32 venthole output, is inflated towards the Stirring mechanism 2 being arranged in accommodating chamber 11, due to 1 inside four of agitating device
Angle is provided with aerator 3, so that making the number of bubbles to be formed in Stirring mechanism 2 is coated on by the air-flow of different directions
Measure more, foam concrete porosity obtained is higher, wherein the Stirring mechanism 2 includes the power with power mechanism 7
The rotation axis 21 that output shaft is detachably connected is provided with an at least rotating vane 22, the rotating vane in rotation axis 21
22 are arranged relative to 11 bottom angled of accommodating chamber, enable rotating vane 22 that concrete slurry to be pushed to flow centered on rotation axis
Dynamic, the gas for being filled with aerator 3 is flowed with concrete slurry, it is uniform in size to be dispersed to volume, and in concrete slurry
In spiral distribution, keep bubble distribution uniform, can according to the actual situation, by control feeder 4 and for drive rotation
The work and stopping for the power mechanism 7 that axis 21 rotates adjust the working time of agitating device 1, and by adjusting feeder to provide
Gas ingredient, make foam concrete better quality obtained.
Preferably, the feeder 4 is making oxygen by air separation machine, makes the aerator 3 towards the Stirring mechanism 2
It is oxygenated.It uses making oxygen by air separation machine to provide oxygen for aerator 3, introduces oxygen into the concrete slurry in stirring, a side
Face makes to form several oxygen bubbles of uniform size in concrete slurry, keeps foam concrete obtained uniform in material, heat preservation
Effect is preferable, on the other hand, reacts the sludge material containing protein substance added in oxygen and concrete slurry sufficiently, makes it
In the fully oxidized hydrolysis of albumen, remove sludge material in harmful substance, not only contribute to increase concrete slurry in bubble
Quantity, additionally it is possible to make the concrete of the material obtained containing sludge make and use environmental protection, keep the obtained better foam of using effect mixed
Solidifying soil.
Preferably, be provided with the limiting slot 12 being adapted to the air inlet pipe 5 on the agitating device 1, the air inlet pipe 5 with
The separable connection of the limiting slot 12, the aerator 3 is limited in agitating device 1.The preferably described limit of the present embodiment
Position slot 12 runs through the top of agitating device 1, be limited in the air inlet pipe 5 on aerator 3 can in the limiting slot 12, relatively holds
Easy is installed to aerator 3 in agitating device 1, in use, the air inlet pipe 5 of aerator 3 is aligned limiting slot 12, from upper
Aerator 3 being put into agitating device 1 down, by the side in two faces and accommodating chamber 11 on the shell 31 of aerator 3
Wall fitting, limits aerator 3 by air inlet pipe 5 and 1 relative position of agitating device, completes the installation of aerator 3, preferably
The ratio between lateral length x and the transverse width y of 11 side wall of accommodating chamber of plane on the shell 31 of aerator 3 are 1:4, make to be aerated
Device 3 will not influence the normal work that the Stirring mechanism 2 at 11 center of accommodating chamber is arranged in, and the peace of Stirring mechanism 2
Dress can be installed according to the structure of Stirring mechanism 2 itself, it is preferred to use the capping 6 that is adapted to at the top of agitating device 1 and
The rotation axis 21 being arranged in capping 6 is used as Stirring mechanism 2, and when use only needs capping 2 being placed on agitating device 1
On, 11 top opening of accommodating chamber is closed, the installation of Stirring mechanism 2 can be completed, make 2 use side of Stirring mechanism
Just.
Preferably, several ventholes are provided on the aerator 3, the venthole aperture is micron order.Using tool
There is the aerator 3 of micron order venthole, so that aerator 3 is introduced into the bubble volume in concrete slurry smaller, by concrete
The restriction effect of slurry is coated in concrete slurry by preferable retention, is avoided bubble excessive and is risen along concrete slurry,
Rupture is spilt into air, is made in foam concrete obtained to include more bubble uniform in size, stable structure, is guaranteed to be made
Foam concrete using effect, and since venthole aperture is smaller, when being also beneficial to that aerator 3 is avoided to stop working,
Concrete slurry blows back into aerator 3, guarantees the normal work of aerator 3, the present embodiment is preferably in the shell of aerator 3
Several micron-sized aeration heads 32 of installation in body 31 realize aeration by the outlet side of aeration head 32 towards Stirring mechanism 2
The charge operation of device, use is more convenient, and structure is simpler.
Above embodiments are only to illustrate the present invention and not limit the technical scheme described by the invention, although this explanation
The present invention has been described in detail referring to the above embodiments for book, but the present invention is not limited to above-mentioned specific embodiment party
Formula, therefore any couple of present invention modifies or equivalent replacement, and the technical solution of all spirit and scope for not departing from invention
And its improve, it should all cover within the scope of the claims of the present invention.
Claims (10)
1. a kind of method for preparing foam concrete based on aeration method, which is characterized in that specifically comprise the following steps:
Step 1: raw material preparation: according to concrete proportioning, preparing raw material；
Step 2: raw material mixing: the raw material that step 1 is prepared are mixed using superposition feed way, and concrete is made and initially starches
Material；
Step 3: before concrete initial slurry initial set, the addition of concrete initial slurry aeration stirring: being provided with Stirring
In the agitating device of mechanism, and aerator is set in agitating device and is inflated towards Stirring mechanism, stirs evenly obtained
Concrete slurry；
Step 4: concrete slurry injection mold, maintenance molding maintenance molding: is made in step 3.
2. the method for preparing foam concrete based on aeration method as described in claim 1, it is characterised in that: institute in step 1
Stating raw material includes sludge material, and the sludge material is made by domestic sludge by drying and other treatment, and the domestic sludge is that life is dirty
Water treatment plant carries out the sludge slurry generated after sewage treatment.
3. the method for preparing foam concrete based on aeration method as claimed in claim 2, it is characterised in that: institute in step 3
It states aeration stirring and includes stirring operation at least twice, the mixing speed of stirring operation is different each time.
4. the method for preparing foam concrete based on aeration method as claimed in claim 2, it is characterised in that: institute in step 4
Stating maintenance molding includes at least maintenance operations three times, and the temperature of maintenance operations is different each time.
5. the method for preparing foam concrete based on aeration method as claimed in claim 3, it is characterised in that: the step 3
Specifically comprise the following steps:
Step 3.1: primary stirring: mixing speed 20 r/min -30r/min, mixing time at least 3min；
Step 3.2: secondary agitation: mixing speed 40 r/min -50r/min, mixing time at least 3min.
6. the method for preparing foam concrete based on aeration method as claimed in claim 4, it is characterised in that: the step 4
Specifically comprise the following steps:
Step 4.1: insulated curing: demoulding after the mold progress insulated curing of concrete slurry will be filled with, foam coagulation is made
Sun-dried mud brick material, 35 DEG C -36 DEG C of holding temperature, soaking time is at least for 24 hours；
Step 4.2: heating maintenance: being made concrete blank for step 4.1 and carry out heating maintenance, and resistance aqueous foam concrete is made,
92 DEG C -98 DEG C of curing temperature, curing time at least 72h；
Step 4.3: ventilation maintenance: resistance aqueous foam concrete is placed under ventilated environment, and maintenance is to without obvious visual washmarking, system
Foam concrete, 5 DEG C -10 DEG C of curing temperature.
7. a kind of device for preparing foam concrete based on aeration method, which is characterized in that including agitating device, the stirring dress
It is provided with the accommodating chamber for containing slurry in setting, Stirring mechanism and at least one aeration dress are provided in the accommodating chamber
It sets, the aerator is connected with feeder, and the aerator is inflated towards the Stirring mechanism.
8. the device of foam concrete is prepared based on aeration method as claimed in claim 7, it is characterised in that: the gas supply dress
It is set to making oxygen by air separation machine, is oxygenated the aerator towards the Stirring mechanism.
9. the device of foam concrete is prepared based on aeration method as claimed in claim 7, it is characterised in that: the aeration dress
It sets and is provided with air inlet pipe, the limiting slot being adapted to the air inlet pipe, the air inlet pipe and institute are provided on the agitating device
The separable connection of limiting slot is stated, the aerator is limited in agitating device.
10. the device of foam concrete is prepared based on aeration method as claimed in claim 7, it is characterised in that: the aeration
Several ventholes are provided on device, the venthole aperture is micron order.
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| CN201811148201.0A CN109203244A (en) | 2018-09-29 | 2018-09-29 | A kind of method and device preparing foam concrete based on aeration method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811148201.0A CN109203244A (en) | 2018-09-29 | 2018-09-29 | A kind of method and device preparing foam concrete based on aeration method |
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| CN109203244A true CN109203244A (en) | 2019-01-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111716538A (en) * | 2020-06-30 | 2020-09-29 | 贵州凯襄新材料有限公司 | Stirring device for preparing aerated concrete |
| CN112194503A (en) * | 2020-11-03 | 2021-01-08 | 烟台三力轻质混凝土科技有限公司 | Curing method for manufacturing foam concrete member |
| CN113650160A (en) * | 2021-08-27 | 2021-11-16 | 哈尔滨工业大学（深圳） | Method and device for preparing concrete building material by adding carbon dioxide in stirring process |
| CN113843894A (en) * | 2021-12-02 | 2021-12-28 | 中国华能集团清洁能源技术研究院有限公司 | Stirring equipment and stirring method for carbon-rich gas mixed concrete slurry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107915433A (en) * | 2017-11-22 | 2018-04-17 | 陈波霖 | A kind of preparation method of concrete |
| CN207736520U (en) * | 2017-12-10 | 2018-08-17 | 成都西亚科技发展有限公司 | A kind of aggregate mixing arrangement for producing foam concrete |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107915433A (en) * | 2017-11-22 | 2018-04-17 | 陈波霖 | A kind of preparation method of concrete |
| CN207736520U (en) * | 2017-12-10 | 2018-08-17 | 成都西亚科技发展有限公司 | A kind of aggregate mixing arrangement for producing foam concrete |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111716538A (en) * | 2020-06-30 | 2020-09-29 | 贵州凯襄新材料有限公司 | Stirring device for preparing aerated concrete |
| CN111716538B (en) * | 2020-06-30 | 2022-03-29 | 贵州凯襄新材料有限公司 | Stirring device for preparing aerated concrete |
| CN112194503A (en) * | 2020-11-03 | 2021-01-08 | 烟台三力轻质混凝土科技有限公司 | Curing method for manufacturing foam concrete member |
| CN113650160A (en) * | 2021-08-27 | 2021-11-16 | 哈尔滨工业大学（深圳） | Method and device for preparing concrete building material by adding carbon dioxide in stirring process |
| CN113843894A (en) * | 2021-12-02 | 2021-12-28 | 中国华能集团清洁能源技术研究院有限公司 | Stirring equipment and stirring method for carbon-rich gas mixed concrete slurry |
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Application publication date: 20190115 |