CN113070995B - Flexible AAC plate production process - Google Patents

Flexible AAC plate production process Download PDF

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Publication number
CN113070995B
CN113070995B CN202110333272.3A CN202110333272A CN113070995B CN 113070995 B CN113070995 B CN 113070995B CN 202110333272 A CN202110333272 A CN 202110333272A CN 113070995 B CN113070995 B CN 113070995B
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China
Prior art keywords
slurry
powder
stirring
spraying
liquid
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CN113070995A (en
Inventor
杨永泉
张火明
季鹏程
李国志
刘爽
杨广会
陈学军
孟凡刚
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Youboluoke New Building Materials Tianjin Co ltd
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Youboluoke New Building Materials Tianjin Co ltd
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    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
    • B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
    • 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
    • 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
    • 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
    • B28C5/003—Methods for mixing
    • B28C5/006—Methods for mixing involving mechanical aspects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

The invention provides a flexible AAC plate production process, which is characterized in that the production and manufacturing of an aerated concrete plate are completed through the working procedures of raw material preparation, weighing and metering, stirring, pouring, standing and maintaining, cutting, steam curing and plate snapping, in the stirring working procedure, a powder material is added into a powder spraying system and matched with a liquid spraying system to mix the powder material and liquid in the air, so that the phenomenon that a large amount of powder material is added into a stirring tank to form a large amount of dust bubbles, the subsequent stirring time is long, and the bubbles which are not fully stirred cause the generation of the entrained materials in the subsequent production is avoided; the production efficiency is improved by synchronous stirring, pouring and vibrating.

Description

Flexible AAC plate production process
Technical Field
The invention relates to the technical field of aerated concrete production, in particular to a flexible AAC plate production process.
Background
The aerated concrete (AAC) board is a light porous board, has lower density than common cement materials, and has good fire resistance, sound insulation, heat preservation and certain shock resistance. However, if bubbles are generated in the stirring and pouring processes, local bubbles are too large in the subsequent foaming process, so that the indexes of strength, heat preservation performance, sound insulation, heat insulation and the like of the aerated concrete are greatly influenced, and the batch is unqualified.
Chinese patent CN201910547722.1 discloses a production process and a production line of autoclaved aerated concrete slabs, relating to the technical field of production of autoclaved aerated concrete slabs. According to the production process of the autoclaved aerated concrete slab, the die can be adjusted at any time according to actual production requirements, and the die does not need to be prefabricated, so that the die cost is greatly reduced; and after the static oxygen is finished, the semi-cured slurry is immediately cut and shaped, so that the problems that the slurry is difficult to cut after being completely cured, a large amount of smoke and dust are generated in the cutting process, and the environment is polluted are avoided. The production line of the autoclaved aerated concrete slab can fully utilize the field, so that pouring, static oxygen and oxygen evaporation are synchronously and tightly carried out, and the production speed of the autoclaved aerated concrete slab is greatly increased.
In the scheme, the time of the stirring and pouring process is long, so that the subsequent aerated concrete is prevented from being half-grown, and the technical problem of low production efficiency is caused; the problem of bubble has seriously influenced pouring efficiency and production efficiency, in order to solve the problem of bubble, among the prior art scheme, through modes such as extension stirring time, reduction pouring speed, extension vibration time solve, and then lead to production efficiency low.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a flexible AAC plate production process, which completes the production and manufacture of an aerated concrete plate through the processes of raw material preparation, weighing and metering, stirring, pouring, standing and maintaining, cutting, steam curing and plate breaking off, wherein in the stirring process, a powder material is added into a powder spraying system and matched with a liquid spraying system to mix the powder material and liquid in the air, so that the phenomenon that a large amount of powder material is added into a stirring tank to form a large amount of dust bubbles, which causes long subsequent stirring time and the bubbles which are not fully stirred to cause the generation of entrained materials in subsequent production is avoided; the production efficiency is improved by synchronous stirring, pouring and vibrating.
In order to achieve the purpose, the invention provides the following technical scheme:
a flexible AAC plate production process is characterized by comprising the following steps:
step one, raw material preparation, namely respectively feeding a plurality of raw materials to be processed into a ball mill and grinding the raw materials into fine particles;
weighing and metering, namely weighing and metering the fine particles of the raw materials in the step one respectively, continuously inputting the fine particles into a stirring bin, and adding water in proportion;
stirring, namely starting a main stirring paddle arranged in a stirring bin to stir the raw materials in the step two; meanwhile, adding powdery beneficiation waste residues into a material storage area, alternately spraying the powdery beneficiation waste residues and water in proportion by using a powder spraying system and a liquid spraying system, fully mixing the powdery beneficiation waste residues and sprayed mist water drops in the air, and then enabling the mixture to fall into a stirring bin, and puncturing beneficiation waste residue slurry falling to the top end of slurry in the stirring bin by using a stirring assembly arranged at the bottom end of a liquid spraying unit to ensure that the beneficiation waste residue slurry is free of bubbles; after the main stirring paddle is stirred for the process time, the foaming agent is added into the stirring bin after being metered and homogenized, and the main stirring paddle is continuously stirred for the process time;
pouring, namely after the mould is oiled, hoisting a steel bar cage into the mould, conveying the mould to the lower part of the stirring bin along a track, driving a pouring head and a vibrating system arranged below the pouring head to move downwards to the top end inside the mould by a driving assembly, distributing a plurality of vibrating rods among the steel bar cages in a staggered manner, and enabling the bottom end of the vibrating system to be close to the bottom end of the mould; opening a pouring switch to pour the slurry in the stirring bin into the mold along a pouring head, and simultaneously enabling the vibrating system to reciprocate up and down along with the material spraying pressure changing unit; after pouring is finished, the driving assembly drives the pouring head and the vibrating system to move upwards to wait for the next group of dies;
step five, standing and maintaining, wherein the slurry poured in the step four enters a pre-curing chamber together with the mold for pre-curing;
cutting, namely demolding the green body cured in the step five to separate the mold frame from the bottom plate, and driving the blank to flow and convey to a cutting machine by the bottom plate to cut the waste and transversely cut the waste; assembling the mold frame and the next group of bottom plates, cleaning and oiling the assembled mold, and transporting to the fourth step to wait for pouring; adding the cut waste materials into a stirring bin in the third step after slurry preparation and metering;
seventhly, carrying out steam curing, namely transferring the green body cut in the sixth step into a steam curing kettle for steam curing;
and step eight, plate breaking, namely transferring the steamed blank body to the plate breaking machine, separating the aerated concrete plate, transferring the separated plate to a storage area by an output forklift, cleaning the bottom plate, conveying the cleaned bottom plate to the step six, assembling the cleaned bottom plate with the mold frame, and recycling the cleaned bottom plate.
Preferably, after the powdered ore dressing waste residue in the third step is added into the material storage area, the powder in the material storage area is intermittently added into the powder spraying area by utilizing a plurality of groups of feeding pressure changing units in the powder spraying system and matching with the up-and-down reciprocating action of the pressure changing seat and the action of a feeding sealing cover arranged at the feeding port.
Preferably, in the third step, during the downward movement of the variable pressure seat, the liquid spraying unit stops rotating by using a ratchet assembly arranged at one end of the transmission shaft, and simultaneously the slurry inlet pipeline is opened and water is added into the liquid storage tank.
Preferably, the powder spraying system in the third step utilizes the pressure changing seat to move downwards to drive the powder spraying pressure head to move downwards, powder is sprayed out from the powder spraying area on the powder spraying seat along the discharge port, and the powder is sprayed out in a distributed manner after passing through the bulk cargo net arranged on the discharge port; at the moment, the slurry inlet pipeline is closed to finish the action of adding water into the liquid storage tank.
Preferably, in the third step, the pressure changing base moves upwards to drive the transmission unit arranged in the pressure changing base to rotate, the transmission unit drives the liquid spraying unit to rotate, the water in the liquid storage tank is sprayed out along the liquid spraying pipe in a centrifugal mode, the liquid spraying net arranged at the outlet of the liquid spraying pipe is used for scattering water drops to be sprayed out in a mist mode, the water drops are mixed with the powder which is just sprayed out and falls, and the slurry without bubbles falls into the stirring bin.
Preferably, in the fourth step, the mixed powder slurry falling onto the surface of the slurry in the stirring bin is subjected to secondary stirring by the stirring paddle and the action of the pricker, so that bubbles on the surface of the slurry are pierced, and the subsequent stirring time is saved.
Preferably, in the fourth step, the casting head is arranged in a T shape, the length dimension of the T-shaped casting head is matched with the length dimension of the inner cavity of the mold, and a plurality of slurry outlets are arranged below the T-shaped casting head; and protective covers are arranged on two sides of the pouring head.
Preferably, in the fourth step, when the pouring head descends into the mold, the lower end face of the positioning boss abuts against the upper end of the support plate, and the vibrating frame is driven to move upwards when the pressure changing seat moves upwards; when the transformer base moves downwards, the vibrating frame moves downwards under the action of the elastic force of the elastic connecting piece to reset, so that the vibrating frame synchronously reciprocates along with the up-and-down movement of the transformer base, and the vibrating efficiency is improved.
Preferably, the precuring in the fifth step is carried out at the room temperature of 50-70 ℃ for 1.5-2 h.
Preferably, in the seventh step, the steam curing pressure is 0.8-1.3Mpa, the steam curing temperature is 200-210 ℃, and the steam curing time is 8-12 h.
The invention also aims to overcome the defects and provide a flexible AAC plate production line, which is characterized in that the powder is fully mixed with the slurry during adding, bubbles of the raw powder are prevented from being generated, the subsequent vibrating time is shortened by pouring and vibrating at the same time, the vibrating is started from a small amount of material, the vibrating efficiency is high, the vibrating and foam removing effect is good, the flowing time of the slurry in a mold is shortened by arranging a T-shaped pouring head, the pouring efficiency is improved, and the production efficiency of aerated concrete is further improved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a flexible AAC panel production line, includes ball-milling system, weighing and metering system, quiet maintenance system, cutting system, evaporates the system of curing, breaks off with the fingers and thumb the board system and locates the stirring storehouse on the equipment platform, its characterized in that still includes: the powder spraying system is arranged above the stirring bin, the liquid spraying system is arranged in the powder spraying system, the driving system is connected with the powder spraying system, the pouring system is arranged below the stirring bin, and the vibrating system is arranged below the pouring system;
the powder spraying system comprises a powder spraying unit arranged at the mouth part of the stirring bin, a material spraying transformation unit arranged above the powder spraying unit in a sliding manner, and a plurality of groups of feeding transformation units arranged at the outer side of the material spraying transformation unit;
the liquid spraying system comprises a liquid spraying unit arranged in the powder spraying unit and a transmission unit arranged above the liquid spraying unit and connected with the inner wall of the powder spraying unit;
the pouring system comprises a T-shaped pouring head which is sleeved at the bottom end of the stirring bin in a sliding manner and protective covers which are arranged on two sides of the pouring head; a plurality of slurry outlets are formed below the pouring head; the pouring head is connected with the equipment platform through a driving assembly;
the vibrating system comprises a vibrating frame arranged below the pouring head and a plurality of vibrating rods arranged at the bottom end of the vibrating frame; the vibrating frame is connected with the bottom end of the pouring head through an elastic connecting piece.
As an improvement, the powder spraying unit comprises:
the powder spraying seat is arranged at the opening part of the stirring bin, and the end part of the powder spraying seat is sequentially provided with a powder spraying area and a material storage area from inside to outside; a plurality of groups of powder spraying areas and material storage areas are uniformly distributed on the circumference; the powder spraying area and the material storage area are connected through a plurality of feed inlets; the other side of the powder spraying area is communicated with the stirring bin through a plurality of discharge holes; a bulk cargo net is arranged on the plurality of discharge ports;
the feeding sealing cover is rotatably arranged on one side surface of the feeding hole close to the powder spraying area; and
the discharging sealing cover is rotatably arranged on the inner side surface of the powder spraying seat and is arranged on one side of the discharging port;
all be equipped with the torsional spring on the sealed rotation axis of lid of ejection of compact and the sealed lid of feeding, when no exogenic action, the sealed lid of ejection of compact and the sealed lid of feeding lock corresponding discharge gate and feed inlet all the time under the elastic action of torsional spring.
As an improvement, the material spraying transformation unit comprises a transformation seat connected with the output end of the driving system, a powder spraying pressure head matched with the number and the size of the powder spraying areas is arranged at the bottom end of the transformation seat, the powder spraying pressure head is arranged in the powder spraying areas in a sliding mode, and the powder spraying pressure head is driven to slide up and down in the powder spraying areas through the up-and-down movement of the driving system to change the pressure in the powder spraying areas.
As an improvement, two ends of the vibrating frame are in sliding connection with supporting plates symmetrically extending out of two sides of the variable pressure seat through transmission rods; a positioning boss is arranged at the top end of the transmission rod; when the pouring head descends into the mold, the lower end face of the positioning boss abuts against the upper end of the supporting plate, and the vibrating frame is driven to move upwards when the pressure changing seat moves upwards; when the transformer base moves downwards, the vibrating frame moves downwards under the action of the elastic force of the elastic connecting piece to reset, and the vibrating frame synchronously reciprocates along with the up-and-down movement of the transformer base.
As an improvement, the number of the multiple groups of charging pressure-changing units is matched with that of the material storage areas; the feeding transformation unit comprises a feeding pressure head arranged on the material storage area in a sliding mode, a first rack arranged above the feeding pressure head and connected with the feeding pressure head, a first gear arranged above the powder spraying seat in a rotating mode and a second rack arranged on the outer side of the powder spraying pressure head; the first rack and the second rack are distributed on two sides of the first gear and are respectively in meshed transmission with the second gear.
As an improvement, the liquid spraying unit comprises a rotating shaft rotatably arranged at the bottom end of the powder spraying base and a liquid spraying frame assembly arranged outside the rotating shaft; liquid inlet channel has been seted up on the top of pivot, and the top of pivot is run through to this liquid inlet channel's one end, and its other end radially runs through the pivot setting and its a plurality of liquid outlets of circumference equipartition along the pivot.
As an improvement, the liquid spray frame assembly comprises a plurality of groups of liquid storage plates which are arranged along the axial direction of the rotating shaft and fixedly connected with the rotating shaft, a liquid spray frame which is fixedly connected with the liquid storage plates and liquid spray pipes which are arranged above the liquid storage plates; the liquid storage plate is arranged in a concave mode, and the height of one side, close to the liquid spraying frame, of the liquid storage plate is higher than that of the position, close to the rotating shaft, of the liquid storage plate; the liquid storage plate is provided with a plurality of liquid storage tanks, the liquid storage tanks are positioned below the liquid outlet, the liquid spraying pipes are arranged in the liquid storage tanks, and one ends of the liquid spraying pipes penetrate through the liquid spraying frame.
As an improvement, the liquid spraying unit further comprises a stirring assembly arranged at the bottom end of the rotating shaft; the stirring assembly comprises a plurality of groups of stirring paddles which are uniformly distributed in the circumferential direction of the rotating shaft, a plurality of pointed pricking pins are arranged on the stirring paddles, and the height of the stirring assembly is matched with the height of the upper surface of the slurry in the stirring bin, so that the pricking pins carry out secondary mixing on the powder on the surface of the slurry.
As an improvement, the transmission unit comprises a third rack connected with the voltage transformation seat, a transmission shaft rotatably arranged on a connecting rod extending out of the powder spraying seat, a first bevel gear rotatably arranged at one end of the transmission shaft, a ratchet wheel assembly arranged at the other end of the transmission shaft, and a second bevel gear rotatably arranged at the top end of the rotation shaft and in meshing transmission with the first bevel gear; the third rack is in meshing transmission with the ratchet assembly.
As an improvement, the ratchet wheel assembly comprises a third gear which is rotatably arranged on the variable pressure seat and is in meshing transmission with the third rack, and a fixed wheel arranged on the transmission shaft; a plurality of ratchets are arranged inside the third gear, and a plurality of pawls matched with the ratchets are arranged on one side of the fixed wheel; when the transformation seat moves upwards, the third gear is driven to rotate, so that the liquid spraying unit is driven to rotate; when the variable pressure seat moves downwards, the third gear rotates but the liquid spraying unit does not rotate.
The invention has the beneficial effects that:
(1) the production method comprises the steps of raw material preparation, weighing and metering, stirring, pouring, standing and maintaining, cutting, steam curing and plate breaking, the production and the manufacture of the aerated concrete plate are finished, the powdery material is added into a powder spraying system and matched with a liquid spraying system to mix the powdery material and liquid in the air, and the phenomenon that a large amount of powdery material is added into a stirring tank to form a large amount of dust bubbles, so that the subsequent stirring time is long and the bubbles which are not fully stirred cause the generation of the entrained raw material in the subsequent production is avoided;
(2) according to the invention, the T-shaped pouring head matched with the length and the size of the inner cavity of the mold in the pouring system is adopted, so that the inner cavity of the mold is quickly filled with the slurry, the flowing time of the slurry in the inner cavity of the mold is reduced, and the pouring efficiency is improved;
(3) according to the invention, the vibration system vibrates while pouring, so that the subsequent vibration time is shortened, and the pouring efficiency is improved; the vibrating system synchronously acts along with the powder spraying system and is matched with the action of the elastic connecting piece to enable the vibrating system to do up-and-down reciprocating action, so that the phenomenon that slurry in a cavity of a mould is lack of slurry and the subsequent forming quality of the slurry is influenced because a vibrating rod is in the slurry for a long time and the slurry is taken out when the vibrating rod is pulled out outwards is avoided; the vibrating system is inserted into the die cavity in advance to a certain depth, so that the problem that the vibrating system is difficult to insert when being inserted by a subsequent worker is solved;
(4) according to the invention, the powder spraying system is matched with the liquid spraying system, namely powder spraying is carried out firstly and then slurry spraying is carried out, and the powder spraying port is higher than the slurry spraying port, so that the powder is mixed with the sprayed slurry in the falling process, bubbles are prevented from being generated when too much powder is mixed with the slurry, the powder is prevented from being mixed due to accumulation, and the problem of difficulty in subsequent stirring is solved;
(5) according to the invention, the interval opening time of the discharging sealing cover is controlled through the stroke of the variable pressure seat, so that the powder entering the powder spraying area each time is controlled, the quantity of the powder sprayed out each time is controlled, and the quantitative addition of the powder is realized;
(6) according to the invention, through the arrangement of the liquid storage tank, the amount of the slurry sprayed out each time is fixed, and the fixed-ratio mixing is realized by matching with the calculated powder spraying amount, so that the matching consistency of the whole slurry in the stirring bin after mixing is improved, and the stability of subsequent foaming is improved;
(7) according to the invention, through the arrangement of the bulk cargo net, the sprayed powder falls in a distributed manner, so that insufficient mixing in the falling process is avoided; through the arrangement of the liquid dispersion net, the sprayed slurry is in a raindrop type and is fully mixed with the dispersed powder, so that the mixing effect is improved;
(8) according to the invention, through the arrangement of the ratchet wheel assembly, in the ascending process of the transformer base, the unidirectional ratchets and the pawls are matched to drive the liquid spraying unit to rotate, so that centrifugal liquid spraying is realized, and in the descending process of the transformer base, the unidirectional ratchets and the pawls keep the liquid spraying unit static, so that slurry can be conveniently added into the liquid storage tank;
(9) according to the invention, the obliquely arranged liquid storage plate is matched with the liquid discharge tank arranged on the edge and the liquid storage tank arranged on the liquid storage plate, so that the fixed-amount storage of the slurry in the liquid storage tank is realized, the volume of the slurry sprayed out each time is ensured to be constant, and the consistency of the ratio of the slurry to the powder after mixing is further ensured.
In conclusion, the invention has the advantages of high pouring efficiency, good vibrating effect, high production speed, no bubble, no entrained bubbles and the like.
Drawings
FIG. 1 is a schematic view of the process of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic diagram of a powder injection system according to the present invention;
FIG. 4 is a schematic structural sectional view of a powder spraying system according to the present invention;
FIG. 5 is a schematic structural diagram of a powder spraying unit according to the present invention;
FIG. 6 is a schematic view of a transformer base according to the present invention;
FIG. 7 is a schematic structural view of the mounting position of the discharge sealing cover according to the present invention;
FIG. 8 is a schematic diagram of a feed pressure swing unit of the present invention;
FIG. 9 is a schematic axial half-section view of a spray unit structure according to the present invention;
FIG. 10 is a schematic cross-sectional view of a liquid spraying unit according to the present invention;
FIG. 11 is a schematic view of a spray carriage assembly of the present invention;
FIG. 12 is a schematic view of a liquid storage plate according to the present invention;
FIG. 13 shows a spray tube of the present invention;
FIG. 14 is a schematic view of the stirring assembly of the present invention;
FIG. 15 is a schematic structural view of a transmission unit according to the present invention;
FIG. 16 is a schematic view of a ratchet assembly of the present invention;
FIG. 17 is a schematic structural view of the vibrating system of the present invention;
FIG. 18 is a cross-sectional axial view of the gating system of the present invention;
FIG. 19 is a schematic structural view of a material spraying state of the present invention;
FIG. 20 is a schematic view of the mixing state of the guniting system according to the invention;
FIG. 21 is a schematic view of the invention in a pre-casting condition;
fig. 22 is a schematic view of the state of the present invention during casting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example one
As shown in fig. 1, a flexible AAC plate production process includes the following steps:
step one, raw material preparation, namely respectively feeding a plurality of raw materials to be processed into a ball mill and grinding the raw materials into fine particles;
weighing and metering, namely weighing and metering the fine particles of the raw materials in the step one respectively, continuously inputting the fine particles into a stirring bin 1, and adding water in proportion;
stirring, namely starting a main stirring paddle arranged in the stirring bin 1 to stir the raw materials in the step two; meanwhile, the powdered ore dressing waste residues are added into a material storage area 2112, the powdered ore dressing waste residues and water are alternately sprayed out in proportion by using a powder spraying system 2 and a liquid spraying system 3, the powdered ore dressing waste residues and sprayed mist water drops are fully mixed in the air and then fall into a stirring bin 1, and a stirring component 313 arranged at the bottom end of a liquid spraying unit 31 punctures ore dressing waste residue slurry falling to the top end of slurry in the stirring bin 1, so that the ore dressing waste residue slurry is ensured to be bubble-free; after the main stirring paddle is stirred for the process time, the foaming agent is added into the stirring bin 1 after being metered and homogenized, and the main stirring paddle is continuously stirred for the process time;
pouring, namely after the mould is oiled, hoisting a steel reinforcement cage into the mould, conveying the mould to the lower part of the stirring bin 1 along a track, driving a pouring head 51 and a vibrating system 6 arranged below the pouring head 51 to move downwards to the top end inside the mould by a driving assembly 53, distributing a plurality of vibrating rods 62 among the steel reinforcement cages in a staggered manner, and enabling the bottom end of the vibrating system 6 to be close to the bottom end of the mould; opening a pouring switch to pour the slurry in the stirring bin into the mold along a pouring head 51, and simultaneously enabling the vibrating system 6 to reciprocate up and down along with the material spraying pressure transformation unit 22; after the pouring is finished, the driving assembly 53 drives the pouring head 51 and the vibrating system 6 to move upwards to wait for the next set of molds;
step five, standing and maintaining, wherein the slurry poured in the step four enters a pre-curing chamber together with a mold for pre-curing;
cutting, namely demolding the green body cured in the step five to separate the mold frame from the bottom plate, and driving the blank to flow and convey to a cutting machine by the bottom plate to cut the waste and transversely cut the waste; assembling the mold frame and the next group of bottom plates, cleaning and oiling the assembled mold, and transporting to the fourth step to wait for pouring; adding the cut waste materials into the stirring bin 1 in the third step after slurry preparation and metering;
seventhly, carrying out steam curing, namely transferring the green body cut in the sixth step into a steam curing kettle for steam curing;
and step eight, plate breaking, namely transferring the steamed blank body to the plate breaking machine, separating the aerated concrete plate, transferring the separated plate to a storage area by an output forklift, cleaning the bottom plate, conveying the cleaned bottom plate to the step six, assembling the cleaned bottom plate with the mold frame, and recycling the cleaned bottom plate.
After the powdered ore dressing waste residue in the third step is added into the material storage area 2112, the powder in the material storage area 2112 is intermittently added into the powder spraying area 2111 by utilizing the multiple groups of feeding and pressure changing units 23 in the powder spraying system 2 in cooperation with the up-and-down reciprocating action of the pressure changing seat 221 and the action of the feeding sealing cover 212 arranged at the feeding port 2113.
In addition, in the third step, during the downward movement of the pressure changing base 221, the rotation of the spray unit 31 is stopped by the ratchet assembly 324 provided at the end of the driving shaft 322, and the slurry inlet pipe is opened to add water into the reservoir 31211.
Further, the powder spraying system 2 in the third step utilizes the pressure changing base 221 to move downwards to drive the powder spraying pressure head 2211 to move downwards, powder is sprayed out from the powder spraying area 2111 on the powder spraying base 211 along the discharge port 2114, and the powder is sprayed out in a distributed manner after passing through the bulk material net 2115 arranged at the discharge port 2114; at this time, the slurry inlet pipeline is closed to finish the action of adding water into the liquid storage tank 31211.
In the third step, the transmission unit 32 disposed in the pressure changing seat 221 is driven to rotate by the upward movement of the pressure changing seat 221, the liquid spraying unit 31 is driven to rotate by the transmission unit 32, the water in the liquid storage tank 31211 is centrifugally sprayed out along the liquid spraying pipe 3123, the water droplets are scattered into a mist by the liquid scattering net 31231 disposed at the outlet of the liquid spraying pipe 3123 and sprayed out, and are mixed with the powder material just sprayed out and falling, and the slurry mixed without bubbles falls into the stirring chamber 1.
Preferably, in the fourth step, the mixed powder slurry falling onto the surface of the slurry in the stirring bin 1 is secondarily stirred by the stirring paddle 3131 and is acted by the pricking pin 3132, so that the bubbles on the surface of the slurry are pricked, and the subsequent stirring time is saved.
In the fourth step, in this embodiment, the casting head 51 is arranged in a shape like a "T", the length dimension of the "T" shaped casting head 51 is matched with the length dimension of the inner cavity of the mold, and a plurality of slurry outlets 511 are arranged below the "T" shaped casting head 51; protective covers 52 are arranged on two sides of the pouring head 51.
In the fourth step, when the casting head 51 is lowered into the mold 200, the lower end surface of the positioning boss 641 abuts against the upper end of the support plate 2213, and the vibrating frame 61 is driven to move upward when the transforming seat 221 moves upward; when the transformer seat 221 moves downwards, the vibrating frame 61 moves downwards to reset under the elastic force of the elastic connecting piece 63, so that the vibrating frame 61 synchronously reciprocates along with the up-and-down movement of the transformer seat 221, and the vibrating efficiency is improved.
Preferably, the pre-culture in the fifth step is carried out at the room temperature of 50-70 ℃ for 1.5-2 h.
Preferably, in the seventh step, the steam curing pressure is 0.8-1.3Mpa, the steam curing temperature is 200-210 ℃, and the steam curing time is 8-12 h.
Example two
As shown in fig. 2-4, a flexible AAC plate production line includes a ball milling system, a weighing and metering system, a static maintenance system, a cutting system, a steam curing system, a plate breaking-off system, and a stirring bin 1 disposed on an equipment platform 100, and further includes: the powder spraying system 2 is arranged above the stirring bin 1, the liquid spraying system 3 is arranged in the powder spraying system 2, and the driving system 4 is connected with the powder spraying system 2, and the top end of the driving system 4 is connected with the top end of the equipment platform; the driving system 4 can select cylinder transmission, gear rack transmission or other linear transmission modes; of course, a cam drive may also be selected;
the powder spraying system 2 comprises a powder spraying unit 21 arranged at the opening part of the stirring bin 1, a material spraying pressure transformation unit 22 arranged above the powder spraying unit 21 in a sliding manner, and a plurality of groups of material feeding pressure transformation units 23 arranged on the outer side of the material spraying pressure transformation unit 22;
the liquid spraying system 3 comprises a liquid spraying unit 31 arranged in the powder spraying unit 21 and a transmission unit 32 arranged above the liquid spraying unit 31 and connected with the inner wall of the powder spraying unit 21;
as shown in fig. 18, the gating system 5 includes a T-shaped gating head 51 slidably sleeved at the bottom end of the stirring bin 1 and protective covers 52 disposed at two sides of the gating head 51; a plurality of slurry outlets 511 are formed below the pouring head 51; the pouring head 51 is connected with the equipment platform 100 through a driving assembly 53;
the vibrating system 6 comprises a vibrating frame 61 arranged below the pouring head 51 and a plurality of vibrating rods 62 arranged at the bottom end of the vibrating frame 61; the vibrating frame 61 is connected with the bottom end of the pouring head 51 through an elastic connecting piece 63;
it should be noted that, the length of the pouring head 51 is matched with the length of the mold 200, that is, the length of the pouring head 51 is slightly smaller than the size of the inner cavity of the mold 200, and the arrangement of the "T" -shaped pouring head 51 enables the slurry to flow out along the slurry outlet 511 quickly, reduces the lateral flow time of the slurry in the mold, and improves the pouring efficiency;
in addition, the protective cover 52 is arranged, so that the phenomenon that slurry is wasted due to outward splashing of the slurry in the pouring process is effectively prevented;
wherein, the vibrating frame 61 is hollow, the pouring head 51 is positioned at the middle part, and the slurry is sprayed into the mold 200 along the hollow part at the middle part;
in this embodiment, the elastic connection 63 is preferably a plurality of sets of strong springs arranged side by side at both ends of the tamper frame 61, providing elastic force for the return of the tamper frame 61.
As a modification, as shown in fig. 4 to 7, the powder spraying unit 21 includes:
the powder spraying seat 211 is arranged at the opening of the stirring bin 1, and the end part of the powder spraying seat 211 is sequentially provided with a powder spraying area 2111 and a material storage area 2112 from inside to outside; a plurality of groups are uniformly distributed on the circumference of the powder spraying area 2111 and the material storage area 2112; the powder spraying area 2111 is connected with the material storage area 2112 through a plurality of feed inlets 2113; the other side of the powder spraying area 2111 is communicated with the stirring bin 1 through a plurality of discharge holes 2114;
the feeding sealing cover 212 is rotatably arranged on one side surface of the feeding port 2113 close to the powder spraying area 2111; and
the discharging sealing cover 213 is, as shown in fig. 7, rotatably disposed on the inner side surface of the powder spraying base 211 and on one side of the discharging port 2114;
the rotating shafts of the discharging sealing cover 213 and the feeding sealing cover 212 are both provided with a torsion spring 214, and when no external force acts, the discharging sealing cover 213 and the feeding sealing cover 212 are always buckled and sealed with the corresponding discharging port 2114 and the corresponding feeding port 2113 under the elastic force action of the torsion spring 214.
Preferably, a bulk material net 2115 is arranged on the discharge ports 2114; wherein, the arrangement of the bulk cargo net 2115 leads the sprayed powder to fall in a distributed way.
As an improvement, as shown in fig. 3, the material spraying pressure varying unit 22 includes a pressure varying seat 221 connected to an output end of the driving system 4, a powder spraying pressure head 2211 matched with the number and size of the powder spraying areas 2111 is disposed at a bottom end of the pressure varying seat 221, the powder spraying pressure head 2211 is slidably disposed in the powder spraying areas 2111, and the powder spraying pressure head 2211 is driven to slide up and down in the powder spraying areas 2111 by the up-and-down movement of the driving system 4 to change the pressure in the powder spraying areas 2111.
As shown in fig. 16, 20 and 21, in this embodiment, two ends of the vibrating frame 61 are slidably connected to the symmetrically extending support plates 2213 on two sides of the transformer base 221 through the transmission rods 64; the top end of the transmission rod 64 is provided with a positioning boss 641; when the pouring head 51 is lowered into the mold 200, the lower end surface of the positioning boss 641 abuts against the upper end of the support plate 2213, and the vibrating frame 61 is driven to move upwards when the transformation seat 221 moves upwards; when the transformer seat 221 moves downwards, the vibrating frame 61 moves downwards to reset under the elastic force of the elastic connecting piece 63, and the vibrating frame 61 synchronously reciprocates along with the up-and-down movement of the transformer seat 221.
Preferably, as shown in fig. 8, the number of the plurality of sets of the feeding pressure transformation units 23 is matched with the number of the stock areas 2112; the feeding pressure varying unit 23 comprises a feeding pressure head 231 arranged on the material storage area 2112 in a sliding manner, a first rack 232 arranged above the feeding pressure head 231 and connected with the feeding pressure head, a first gear 233 arranged above the powder spraying seat 211 in a rotating manner, and a second rack 234 arranged outside the powder spraying pressure head 2211; the first rack 232 and the second rack 234 are distributed on two sides of the first gear 233 and are respectively in meshing transmission with the second gear;
it should be noted that the first gear 233 is rotatably connected to a support shaft 2116 provided on the powder spraying base 211, a guide base 235 is provided on the support shaft 2116, and the first rack 232 slides in the guide base;
in addition, the opening time of the discharging sealing cover 213 is controlled by the stroke of the pressure changing seat 221, so that the powder entering the powder spraying area 2111 each time is controlled, the quantity of the powder sprayed each time is controlled, and quantitative powder adding is realized;
further, the feeding pressure head 231 moves downwards to pressurize the powder in the storage area 2112 under the action of the first rack 232 during the ascending process of the pressure changing seat 221, and the feeding sealing cover 212 is pushed open, so that the powder can smoothly enter the powder spraying area 2111 through the plurality of feeding holes 2113.
As a modification, as shown in fig. 9 to 12, the liquid spraying unit 31 includes a rotating shaft 311 rotatably disposed at the bottom end of the powder spraying base 211 and a liquid spraying frame assembly 312 disposed outside the rotating shaft 311; a liquid inlet channel 3111 is opened at the top end of the rotating shaft 311, one end of the liquid inlet channel 3111 penetrates through the top end of the rotating shaft 311, and the other end of the liquid inlet channel 3111 penetrates through the rotating shaft 311 along the radial direction of the rotating shaft 311 and is evenly provided with a plurality of liquid outlets 3112 along the circumferential direction of the rotating shaft 311.
In this embodiment, the spray frame assembly 312 includes a plurality of groups of liquid storage plates 3121 arranged along the axial direction of the rotating shaft 311 and fixedly connected to the rotating shaft 311, spray frames 3122 fixedly connected to the liquid storage plates 3121, and spray pipes 3123 arranged above the liquid storage plates 3121; the liquid storage plate 3121 is arranged in a concave shape, and the height of one side of the liquid storage plate 3122 close to the liquid spray rack 3122 is higher than the height of the position close to the rotating shaft 311; a plurality of liquid storage tanks 31211 are arranged on the liquid storage plate 3121, the liquid storage tanks 31211 are positioned below the liquid outlet 3112, the liquid spraying pipe 3123 is arranged in the liquid storage tanks 31211, and one end of the liquid spraying pipe 3123 penetrates through the liquid spraying frame 3122;
it should be noted that the liquid outlet 3112 is higher than the top ends of the liquid storage plates 3121; a plurality of liquid discharge grooves 31212 are uniformly distributed on the periphery of one side, close to the liquid spray frame 3122, of the liquid storage plate 3121, when the liquid storage grooves 31211 are full of slurry, the redundant slurry liquid discharge grooves 31212 downwards flow into the next liquid storage groove 31211, so that the filling of the slurry in all the liquid storage grooves 31211 is downwards completed, the volume of the slurry sprayed each time is ensured to be fixed through the arrangement of the liquid storage grooves 31211, the fixed amount of sprayed powder is matched with the fixed amount of slurry through calculation, the quantitative and sufficient mixing of the slurry and the powder is realized, and the generation of bubbles when the powder is mixed with the slurry is avoided;
further, as shown in fig. 13, a liquid dispersion net 31231 is provided at the end of the liquid spray pipe 3123, and the liquid dispersion net 31231 is provided to spray the sprayed slurry in a raindrop manner, and to sufficiently disperse and mix the slurry with the powdery waste material falling in a dispersed manner, thereby preventing the formation of bubbles when the powdery material is mixed with the slurry; the liquid outlet of the liquid spraying pipe 3123 can be arranged in a wide-mouth manner, so that the scattering area of the sprayed liquid is increased, and the mixing effect of the liquid and the powder is further improved;
in addition, as shown in fig. 19, the position of the discharge port 2114 is higher than the position of the uppermost liquid spraying tube 3123 of the liquid storage plates 3121, so that the powder is sprayed out through the discharge port 2114 and then is dispersed downward under the action of the dispersing net 2115, the spraying of the powder is completed when the pressure changing seat 221 moves upward, at this time, the liquid spraying frame assembly 312 rotates under the action of the transmission unit 32, so that the slurry in the liquid storage tank 31211 is sprayed out along the liquid spraying tube 3123 under the action of centrifugal force, the sprayed slurry is sprayed out under the action of the dispersing net 31231 in a raindrop type, and is dispersed and mixed with the powder in the falling process, and the multiple groups of liquid spraying tubes 3123 ensure that the powder in the falling process is mixed and then falls into the stirring bin, thereby solving the phenomenon of air bubbles caused by powder accumulation.
Preferably, as shown in fig. 14, the liquid spraying unit 31 further includes a stirring assembly 313 disposed at the bottom end of the rotating shaft 311; the stirring component 313 comprises a plurality of groups of stirring paddles 3131 which are uniformly distributed along the circumferential direction of the rotating shaft 311, a plurality of pointed pricking pins 3132 are arranged on the stirring paddles 3131, the height of the stirring component 313 is matched with the height of the upper surface of the slurry in the stirring bin 1, and the pricking pins 3132 are used for carrying out secondary mixing on powder on the surface of the slurry;
as shown in fig. 20, the slurry sprayed during the dropping process and the sprayed powder are mixed and then fall onto the surface of the slurry in the stirring bin 1, and the air bubbles on the surface of the slurry are pierced by the stirring paddle 3131 and the needles 3132, so that the mixing is facilitated and the subsequent stirring time is saved.
Preferably, as shown in fig. 15 to 16, the transmission unit 32 includes a third rack 321 connected to the pressure varying base 221, a transmission shaft 322 rotatably disposed on a connecting rod 2212 extending from the powder spraying base 211, a first bevel gear 323 rotatably disposed at one end of the transmission shaft 322, a ratchet assembly 324 disposed at the other end of the transmission shaft 322, and a second bevel gear 325 rotatably disposed at the top end of the rotation shaft 311 and engaged with the first bevel gear 323 for transmission; the third rack 321 is in meshing transmission with the ratchet assembly 324.
In this embodiment, the ratchet assembly 324 includes a third gear 3241 rotatably disposed on the voltage transformation base 221 and engaged with the third rack 321 for transmission, and a fixed wheel 3242 disposed on the transmission shaft 322; a plurality of ratchet teeth 3243 are arranged inside the third gear 3241, and a plurality of pawls 3244 matched with the ratchet teeth 3243 are arranged on one side of the fixed gear 3242; when the pressure-varying seat 221 moves upward, the third gear 3241 is driven to rotate, so as to drive the liquid spraying unit 31 to rotate; when the variable pressure base 221 moves downward, the third gear 3241 rotates but the liquid ejecting unit 31 does not rotate;
in addition, in the process that the variable pressure seat 221 descends, the sensor controls the electromagnetic valve to open the slurry inlet pipeline, so that slurry is added into the liquid inlet channel 3111 of the rotating shaft 311 through the slurry inlet pipeline, the slurry flows into the liquid storage tank 31211 along the liquid inlet channel 3111, the slurry addition is completed when the variable pressure seat 221 descends to the bottom end, and when the variable pressure seat 221 moves upwards, the sensor controls the electromagnetic valve to close the slurry inlet pipeline, and the slurry addition is stopped; wherein one end of the slurry inlet pipeline is communicated with the liquid inlet channel 3111, and the other end of the slurry inlet pipeline extends into the slurry tank to suck slurry.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A flexible AAC plate production process is characterized by comprising the following steps:
preparing raw materials, namely respectively feeding a plurality of raw materials to be processed into a ball mill, and grinding into fine particles;
weighing, namely weighing and metering the fine particles of the raw materials in the step one respectively, continuously inputting the fine particles into a stirring bin (1), and adding water in proportion;
stirring, starting a main stirring paddle arranged in the stirring bin (1) to stir the raw materials in the step two; meanwhile, adding powdery beneficiation waste residues into a material storage area (2112), alternately spraying the powdery beneficiation waste residues and water in proportion by using a powder spraying system (2) and a liquid spraying system (3), fully mixing the powdery beneficiation waste residues and sprayed mist water drops in the air, and then enabling the mixture to fall into a stirring bin (1), and puncturing beneficiation waste residue slurry falling to the top end of slurry in the stirring bin (1) by using a stirring assembly (313) arranged at the bottom end of a liquid spraying unit (31), so that the beneficiation waste residue slurry is ensured to be free of bubbles; after the main stirring paddle is stirred for the process time, the foaming agent is added into the stirring bin (1) after being metered and homogenized, and the main stirring paddle is continuously stirred for the process time;
pouring, after the mould is oiled, hoisting a reinforcement cage into the mould, conveying the mould to the lower part of the stirring bin (1) along a track, driving a pouring head (51) and a vibrating system (6) arranged below the pouring head (51) to move downwards to the top end inside the mould by a driving assembly (53), wherein a plurality of vibrating rods (62) are distributed among the reinforcement cages in a staggered manner, and the bottom end of the vibrating system (6) is close to the bottom end of the mould; opening a pouring switch to pour the slurry in the stirring bin into the mold along a pouring head (51), and simultaneously enabling the vibrating system (6) to reciprocate up and down along with the material spraying pressure transformation unit (22); after the pouring is finished, the driving assembly (53) drives the pouring head (51) and the vibrating system (6) to move upwards to wait for the next group of moulds;
standing and maintaining, wherein the slurry poured in the fourth step enters a pre-curing chamber together with the mold for pre-curing;
cutting, namely demolding the green body cured in the step five to separate the mold frame from the bottom plate, and driving the blank to flow and convey to a cutting machine by the bottom plate to cut the waste and transversely cut the waste; assembling the mold frame and the next group of bottom plates, cleaning and oiling the assembled mold, and transporting to the fourth step to wait for pouring; the cut waste materials are added into a stirring bin (1) in the third step after slurry preparation and measurement;
steam curing, namely transferring the green bodies cut in the sixth step into a steam curing kettle for steam curing;
the aerated concrete plates are separated, the separated plates are transported to a storage area by an output forklift, and meanwhile, the bottom plate is cleaned and then transported to the sixth step to be assembled with a mold frame for recycling;
after the powdered ore dressing waste residue in the third step is added into the material storage area (2112), powder in the material storage area (2112) is discontinuously added into the powder spraying area (2111) by utilizing a plurality of groups of feeding and pressure changing units (23) in the powder spraying system (2) in cooperation with the up-and-down reciprocating action of the pressure changing seat (221) and the action of a feeding sealing cover (212) arranged at a feeding hole (2113);
the powder spraying system (2) in the third step utilizes the pressure changing seat (221) to move downwards to drive the powder spraying pressure head (2211) to move downwards, powder is sprayed out from a powder spraying area (2111) on the powder spraying seat (211) along a discharge port (2114), and the powder is sprayed out in a distributed mode after passing through a bulk material net (2115) arranged at the discharge port (2114); at this time, the slurry inlet pipeline is closed, and the action of adding water into the liquid storage tank (31211) is completed.
2. The process for producing a flexible AAC board according to claim 1, wherein in the third step, during the downward movement of the pressure changing base (221), the liquid spraying unit (31) is stopped from rotating by a ratchet assembly (324) provided at one end of the transmission shaft (322), and the slurry inlet pipe is opened to add water into the liquid storage tank (31211).
3. The flexible AAC plate production process according to claim 1, wherein in the third step, the transmission unit (32) arranged in the variable pressure seat (221) is driven to rotate by the aid of the upward movement of the variable pressure seat (221), the liquid spraying unit (31) is driven to rotate by the transmission unit (32), water in the liquid storage tank (31211) is centrifugally sprayed out along the liquid spraying pipe (3123), water drops are scattered into a mist by the aid of a liquid scattering net (31231) arranged at an outlet of the liquid spraying pipe (3123) and are sprayed out to be mixed with powder in a falling process, and slurry without bubbles falls into the stirring bin (1).
4. The process for producing a flexible AAC plate according to claim 1, wherein in the fourth step, the mixed powder slurry falling onto the surface of the slurry in the stirring bin (1) is secondarily stirred by the stirring paddle (3131) and is punctured by the puncturing needle (3132), so that the subsequent stirring time is saved.
5. The flexible AAC plate production process according to claim 1, wherein in the fourth step, the casting head (51) is arranged in a shape of "T", the length dimension of the "T" casting head (51) is matched with the length dimension of the inner cavity of the mold, and a plurality of slurry outlets (511) are arranged below the "T" casting head (51); and protective covers (52) are arranged on two sides of the pouring head (51).
6. The process for producing a flexible AAC plate according to claim 1, wherein in the fourth step, when the casting head (51) is lowered into the mold (200), the lower end surface of the positioning boss (641) abuts against the upper end of the support plate (2213), and the vibrating frame (61) is driven to move upwards when the pressure changing base (221) moves upwards; when the transformer base (221) moves downwards, the vibrating frame (61) moves downwards to reset under the action of the elastic force of the elastic connecting piece (63), so that the vibrating frame (61) synchronously reciprocates along with the up-and-down movement of the transformer base (221), and the vibrating efficiency is improved.
7. The process for producing the flexible AAC sheet according to claim 1, wherein in the fifth step, the pre-curing is performed at a room temperature of 50-70 ℃ for 1.5-2 h.
8. The process for producing the flexible AAC sheet according to claim 1, wherein in the seventh step, the steam curing pressure is 0.8-1.3MPa, the steam curing temperature is 200-210 ℃, and the steam curing time is 8-12 h.
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