CN112159244A - Production process of autoclaved aerated concrete slab with high quality product rate - Google Patents
Production process of autoclaved aerated concrete slab with high quality product rate Download PDFInfo
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- CN112159244A CN112159244A CN202011037836.0A CN202011037836A CN112159244A CN 112159244 A CN112159244 A CN 112159244A CN 202011037836 A CN202011037836 A CN 202011037836A CN 112159244 A CN112159244 A CN 112159244A
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- 239000004567 concrete Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000005520 cutting process Methods 0.000 claims abstract description 37
- 239000004576 sand Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 9
- 239000004571 lime Substances 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 4
- 239000010440 gypsum Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 238000011282 treatment Methods 0.000 claims description 24
- 239000003973 paint Substances 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- 238000007598 dipping method Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 238000010025 steaming Methods 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 239000011268 mixed slurry Substances 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000010981 drying operation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000004566 building material Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses a production process of an autoclaved aerated concrete slab with high quality product rate, belonging to the technical field of building material processing production; the raw materials and the corresponding mass proportion are as follows, 49-52 parts of silica sand, 3.5-5 parts of gypsum, 18-21 parts of cement, 9-12 parts of lime and water are respectively optimized for the preparation stage, the pouring forming stage, the demolding cutting stage and the grooving steam curing stage, and the problem that the high-quality product rate is relatively low in the process of producing the autoclaved aerated concrete slab by the current process is effectively solved.
Description
Technical Field
The invention relates to the technical field of building material processing and production, in particular to a production process of an autoclaved aerated concrete slab with high quality product rate.
Background
Autoclaved aerated concrete slabs (called aerated slabs and AAC slabs for short) are widely popularized and applied in China as a combined assembly type building material due to the characteristics of economy, convenience in construction and environmental protection in production, the production of the aerated slabs needs to be carried out by fully mixing raw materials such as cement, lime, silica sand and the like into slurry, then pouring the slurry into a trolley provided with a steel bar net piece for casting and forming, and cutting the concrete slab into a certain specification size after the whole concrete structure is formed in a casting trolley; the country of the fabricated building materials also sets relevant standards for the density and the strength of the fabricated building materials, for example, the national standard of autoclaved aerated concrete slabs used as external wall panels requires the strength to be more than 5MPa, and the density to be 625kg/m3The following; the strength of the inner wallboard is required to be more than 3.5MPa, and the density is required to be 525kg/m3The following; as is well known, the strength and density of a building wall are generally in a proportional structure, and under the current process technology, in order to meet the corresponding strength requirement, the density of the external wall panel made of medium-grade materials is generally 600 +/-5 kg/m3The density of the inner wall board is 510 plus or minus 5kg/m3The autoclaved aerated concrete slab with the quality cannot meet the wall structures with special purposes, and if the density is reduced by adopting other modes, the strength is inevitably changed, so that the standard requirements cannot be met, and therefore, the method for manufacturing the autoclaved aerated concrete slab capable of realizing high-quality product rate under the national standard is urgently needed at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the production process of the autoclaved aerated concrete slab with the high quality product rate is provided, so that the problem that the quality product rate is relatively low in the process of producing the autoclaved aerated concrete slab in the current process is solved.
In order to solve the problems, the invention provides the following technical scheme:
a production process of an autoclaved aerated concrete slab with high quality product rate comprises the following steps:
s1, a preparation phase;
A. weighing the following raw materials in parts by weight; 49-52 parts of silica sand, 3.5-5 parts of gypsum, 18-21 parts of cement and 9-12 parts of lime; adding the materials into a stirring kettle, and then continuously adding quantitative water according to the water-material ratio of 0.6-0.65 for stirring to obtain a ready-to-stir material;
B. processing steel bars into sheet-shaped steel bar meshes through an automatic mesh forming device, simultaneously, performing wax impregnation on a steel bar frame, detachably mounting the steel bar meshes on the steel bar frame through a steel bar connecting frame to form a steel bar cage, and performing rust prevention treatment on the steel bar cage through paint impregnation and drying;
C. cleaning the ferry pouring vehicle, performing oil coating treatment on the inner wall of the ferry pouring vehicle, and loading a reinforcing cage into the ferry pouring vehicle;
s2, pouring and forming;
according to the ratio of 0.51-0.6 kg/m3Adding aluminum powder paste serving as a gas former into the prepared stirring material, stirring, introducing the mixed slurry into a prepared ferry pouring vehicle on a corresponding station of a production line after stirring and gas forming are finished, and performing vibration foaming treatment on the mixed material in the ferry pouring vehicle by using a vibrating device; separating and taking out the steel chisel frame from the steel reinforcement cage, returning the steel chisel frame taken out to the initial position through a crane after cleaning, and waiting for next networking, wherein the pouring vehicle is sequentially transferred into a pre-steam curing chamber and a static stopping chamber to perform solidification and shaping treatment on the outer layer of the pouring plate; the working temperature in the pre-steaming chamber is 50-70 ℃; the working temperature in the static parking room is between 80 and 100 DEG C
S3, demolding and cutting;
opening the side wall of the ferry pouring truck, demolding and taking out the outer-layer molded pouring plate by using a clamping crane, and placing the outer-layer molded pouring plate on a ferry pallet truck; conveying the pouring plate to a cutting machine by a ferry pallet truck for cutting and cutting; sending the waste materials subjected to cutting, cutting and stripping into a waste material pool for waiting for next recovery treatment;
s4, grooving and steaming;
selecting different grooving processing modes according to the process and the product requirement:
if wet grooving is needed, continuously processing the pouring plate through a wet grooving device after cutting and cutting are finished; stacking and piling the ferry pallet truck where the processed pouring plates are located vertically through a stacker crane, sending the ferry pallet truck into a steam curing kettle along a ferry line, taking out the ferry pallet truck after steam curing is finished, performing stack separation operation, and separating the pouring plates from the ferry pallet truck through a transfer device;
if dry grooving is needed, after cutting and cutting are finished, stacking the ferry pallet truck vertically through a stacker crane, feeding the ferry pallet truck into a steam curing kettle along a ferry line, performing stacking operation after steam curing is finished, and transferring pouring plates on the ferry pallet truck to a dry grooving processing line for processing;
the ferry pallet truck with the poured plate unloaded returns to the original station after being cleaned;
s5, finishing and packaging;
and performing finish machining treatment on the finished aerated concrete plate obtained after grooving and steam curing, and packaging and warehousing the finished aerated concrete plate.
Preferably, in the raw material used in step S1, the silicon content of the silica sand is 95%, the sand content is 3%, and the balance of the silica sand which needs to be ground by a ball mill to a standard negative pressure screen with fineness of 0.045mm is not more than 40%; the lime fineness needs the allowance below a standard negative pressure sieve of 0.08mm not to exceed 20 percent.
Preferably, the raw material in step S1 further includes casting cutting waste generated in the previous processing production, and the corresponding weight portion is 15-18.
Preferably, in the step S1, the steel reinforcement cage is subjected to more than two paint dipping and drying treatments when being subjected to paint dipping and drying, and the concentrations of the paint dipping solutions are different when the paint dipping and drying are performed each time; the thickness of the finally formed paint layer is 0.06-0.1 mm.
Preferably, in step S2, the high-temperature steam used in the steam-curing kettle transfers the condensed steam with residual heat to the pre-steam-curing chamber and the static-stop chamber for heating through the recycling pipeline system.
The invention has the beneficial effects that:
the invention provides a new processing technology aiming at the problems in the production of the existing autoclaved aerated concrete slab, firstly, the new proportion and the corresponding quality parameter requirements are provided for the raw materials such as silica sand, lime and the like, so that the physical and chemical indexes of the slab are improved, meanwhile, the process optimization is sequentially carried out on the preparation stage, the pouring forming stage, the demoulding cutting stage and the slotting steam curing stage, and specifically, a steel bar cage body is formed by using a wax-impregnated steel bar frame and a steel bar net and is further subjected to paint dipping and drying to serve as rust prevention, so that the chemical stability of the formed steel bar net is improved; after pouring, vibrating and forming, respectively solidifying and shaping in a pre-steaming chamber and a static stop chamber according to specified temperature, after demolding and cutting, vertically placing the plates into a steaming kettle for steaming, and ensuring that all positions of the plates can be effectively steamed through gaps among the cut plates, thereby improving the steaming efficiency and ensuring the strength of the plates; and the invention can also choose dry grooving or wet grooving two kinds of ways according to the need, carry on the finishing treatment in order to obtain the finished concrete slab finally.
Detailed Description
The invention will be further described with reference to specific examples:
example (b):
the embodiment provides a production process of an autoclaved aerated concrete slab with high quality product rate, which comprises the following steps:
s1, a preparation phase;
A. weighing the following raw materials in parts by weight; 50.7 parts of silica sand, 4 parts of gypsum, 18 parts of cement and 9.3 parts of lime; adding the materials into a stirring kettle, and then continuously adding quantitative water according to the water-material ratio of 06 for stirring to obtain a ready-to-stir material;
B. processing steel bars into sheet-shaped steel bar meshes through an automatic mesh forming device, simultaneously, performing wax impregnation on a steel bar frame, detachably mounting the steel bar meshes on the steel bar frame through a steel bar connecting frame to form a steel bar cage, and performing rust prevention treatment on the steel bar cage through paint impregnation and drying;
C. cleaning the ferry pouring vehicle, performing oil coating treatment on the inner wall of the ferry pouring vehicle, and loading a reinforcing cage into the ferry pouring vehicle;
s2, pouring and forming;
according to 0.54kg/m3Adding aluminum powder paste serving as a gas former into the prepared stirring material, stirring, introducing the mixed slurry into a prepared ferry pouring vehicle on a corresponding station of a production line after stirring and gas forming are finished, and performing vibration foaming treatment on the mixed material in the ferry pouring vehicle by using a vibrating device; separating and taking out the steel chisel frame from the steel reinforcement cage, returning the steel chisel frame taken out to the initial position through a crane after cleaning, and waiting for next networking, wherein the pouring vehicle is sequentially transferred into a pre-steam curing chamber and a static stopping chamber to perform solidification and shaping treatment on the outer layer of the pouring plate; the working temperature in the pre-steaming chamber is 63 ℃; the working temperature in the static room is between 95 DEG C
S3, demolding and cutting;
opening the side wall of the ferry pouring truck, demolding and taking out the outer-layer molded pouring plate by using a clamping crane, and placing the outer-layer molded pouring plate on a ferry pallet truck; conveying the pouring plate to a cutting machine by a ferry pallet truck for cutting and cutting; sending the waste materials subjected to cutting, cutting and stripping into a waste material pool for waiting for next recovery treatment;
s4, grooving and steaming;
selecting different grooving processing modes according to the process and the product requirement:
if wet grooving is needed, continuously processing the pouring plate through a wet grooving device after cutting and cutting are finished; stacking and piling the ferry pallet truck where the processed pouring plates are located vertically through a stacker crane, sending the ferry pallet truck into a steam curing kettle along a ferry line, taking out the ferry pallet truck after steam curing is finished, performing stack separation operation, and separating the pouring plates from the ferry pallet truck through a transfer device;
if dry grooving is needed, after cutting and cutting are finished, stacking the ferry pallet truck vertically through a stacker crane, feeding the ferry pallet truck into a steam curing kettle along a ferry line, performing stacking operation after steam curing is finished, and transferring pouring plates on the ferry pallet truck to a dry grooving processing line for processing;
the ferry pallet truck with the poured plate unloaded returns to the original station after being cleaned;
s5, finishing and packaging;
and performing finish machining treatment on the finished aerated concrete plate obtained after grooving and steam curing, and packaging and warehousing the finished aerated concrete plate.
In the raw materials used in step S1, the silicon content of the silica sand is 95%, the sand content is 3%, and the balance of the silica sand which needs to be ground by a ball mill to a standard negative pressure screen with fineness of 0.045mm is not more than 40%; the lime fineness needs the allowance below a standard negative pressure sieve of 0.08mm not to exceed 20 percent.
The raw material in step S1 further includes casting cutting waste generated in the previous machining, which corresponds to 18 parts by weight.
In the step S1, more than two paint dipping and drying treatments are performed on the reinforcement cage in sequence when paint dipping and drying operations are performed on the reinforcement cage, and the concentrations of paint liquid soaked in the paint dipping and drying treatments are different; the thickness of the finally formed paint layer is 0.06-0.1 mm.
In step S2, the high-temperature steam used in the steam-curing kettle transfers the condensed steam with residual heat to the pre-steam-curing chamber and the static-stop chamber for heating through the recycling pipe system.
Claims (5)
1. A production process of an autoclaved aerated concrete slab with high quality product rate is characterized by comprising the following steps: the method comprises the following steps:
s1, a preparation phase;
A. weighing the following raw materials in parts by weight; 49-52 parts of silica sand, 3.5-5 parts of gypsum, 18-21 parts of cement and 9-12 parts of lime; adding the materials into a stirring kettle, and then continuously adding quantitative water according to the water-material ratio of 0.6-0.65 for stirring to obtain a ready-to-stir material;
B. processing steel bars into sheet-shaped steel bar meshes through an automatic mesh forming device, simultaneously, performing wax impregnation on a steel bar frame, detachably mounting the steel bar meshes on the steel bar frame through a steel bar connecting frame to form a steel bar cage, and performing rust prevention treatment on the steel bar cage through paint impregnation and drying;
C. cleaning the ferry pouring vehicle, performing oil coating treatment on the inner wall of the ferry pouring vehicle, and loading a reinforcing cage into the ferry pouring vehicle;
s2, pouring and forming;
according to the ratio of 0.51-0.6 kg/m3Adding aluminum powder paste serving as a gas former into the prepared stirring material, stirring, introducing the mixed slurry into a prepared ferry pouring vehicle on a corresponding station of a production line after stirring and gas forming are finished, and performing vibration foaming treatment on the mixed material in the ferry pouring vehicle by using a vibrating device; separating and taking out the steel chisel frame from the steel reinforcement cage, returning the steel chisel frame taken out to the initial position through a crane after cleaning, and waiting for next networking, wherein the pouring vehicle is sequentially transferred into a pre-steam curing chamber and a static stopping chamber to perform solidification and shaping treatment on the outer layer of the pouring plate; the working temperature in the pre-steaming chamber is 50-70 ℃; the working temperature in the static parking room is between 80 and 100 DEG C
S3, demolding and cutting;
opening the side wall of the ferry pouring truck, demolding and taking out the outer-layer molded pouring plate by using a clamping crane, and placing the outer-layer molded pouring plate on a ferry pallet truck; conveying the pouring plate to a cutting machine by a ferry pallet truck for cutting and cutting; sending the waste materials subjected to cutting, cutting and stripping into a waste material pool for waiting for next recovery treatment;
s4, grooving and steaming;
selecting different grooving processing modes according to the process and the product requirement:
if wet grooving is needed, continuously processing the pouring plate through a wet grooving device after cutting and cutting are finished; stacking and piling the ferry pallet truck where the processed pouring plates are located vertically through a stacker crane, sending the ferry pallet truck into a steam curing kettle along a ferry line, taking out the ferry pallet truck after steam curing is finished, performing stack separation operation, and separating the pouring plates from the ferry pallet truck through a transfer device;
if dry grooving is needed, after cutting and cutting are finished, stacking the ferry pallet truck vertically through a stacker crane, feeding the ferry pallet truck into a steam curing kettle along a ferry line, performing stacking operation after steam curing is finished, and transferring pouring plates on the ferry pallet truck to a dry grooving processing line for processing;
the ferry pallet truck with the poured plate unloaded returns to the original station after being cleaned;
s5, finishing and packaging;
and performing finish machining treatment on the finished aerated concrete plate obtained after grooving and steam curing, and packaging and warehousing the finished aerated concrete plate.
2. The production process of the autoclaved aerated concrete slab with high quality product rate according to claim 1, is characterized in that: in the raw materials used in step S1, the silicon content of the silica sand is 95%, the sand content is 3%, and the balance of the silica sand which needs to be ground by a ball mill to a standard negative pressure screen with fineness of 0.045mm is not more than 40%; the lime fineness needs the allowance below a standard negative pressure sieve of 0.08mm not to exceed 20 percent.
3. The production process of the autoclaved aerated concrete slab with high quality product rate according to claim 1, is characterized in that: the raw materials in the step S1 further include casting cutting waste materials generated in the previous processing production, and the corresponding weight portions are 15-18.
4. The production process of the autoclaved aerated concrete slab with high quality product rate according to claim 1, is characterized in that: in the step S1, more than two paint dipping and drying treatments are performed on the reinforcement cage in sequence when paint dipping and drying operations are performed on the reinforcement cage, and the concentrations of paint liquid soaked in the paint dipping and drying treatments are different; the thickness of the finally formed paint layer is 0.06-0.1 mm.
5. The production process of the autoclaved aerated concrete slab with high quality product rate according to claim 1, is characterized in that: in step S2, the high-temperature steam used in the steam-curing kettle transfers the condensed steam with residual heat to the pre-steam-curing chamber and the static-stop chamber for heating through the recycling pipe system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011037836.0A CN112159244A (en) | 2020-09-28 | 2020-09-28 | Production process of autoclaved aerated concrete slab with high quality product rate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011037836.0A CN112159244A (en) | 2020-09-28 | 2020-09-28 | Production process of autoclaved aerated concrete slab with high quality product rate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976277A (en) * | 2021-02-05 | 2021-06-18 | 济源亚升新型建材有限公司 | Full-automatic pouring device |
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