4747results about "Cement mixing apparatus" patented technology

The invention provides a flow-state solidified soil mixing construction method based on automatic adjustment of proportioning parameters, belongs to the technical field of flow-state solidified soil, and realizes intelligent control of a flow-state solidified soil mixing process by establishing a three-section type precise screening and stirring system and a high-precision automatic control system. According to the method, firstly, target performance parameters are input, and an optimal matching scheme is automatically selected through a multi-target optimization algorithm; starting an original soil treatment unit to perform soil material dispersion treatment and measuring the physical characteristics of the soil material; adding the raw materials according to the accurate measurement, and fully mixing; when it is detected that the performance of the mixture deviates from a target value, the system automatically triggers a parameter compensation mechanism for adjustment; and meanwhile, a material ratio fluctuation early warning system is established, so that uneven mixture quality caused by starting and stopping of equipment or material conveying delay is avoided, and the technical problem that in the prior art, matching parameters are difficult to accurately regulate and control in real time in the mixing process of the flow-state solidified soil is solved.

The invention relates to the technical field of engineering construction control, in particular to a self-adaptive control method and system for a cement mixing pile, and the method comprises the steps: setting the slurry preparation ratio parameter of a slurry preparation barrel of a feeding hopper according to the working information of the cement mixing pile, and conveying the prepared slurry to a slurry storage barrel of a discharging hopper; collecting a slurry static pressure signal of a slurry storage barrel of the blanking hopper, and monitoring the load dynamic characteristics of a stirring motor of the blanking hopper in real time in the stirring process; the slurry spraying quality parameters of the slurry are analyzed, and when the slurry spraying quality parameters reach the preset feeding standard, the slurry is conveyed to a slurry spraying pipeline to be matched with a cement mixing pile for pile forming work; when the guniting quality parameter exceeds the interval of the feeding standard, a real-time matching error is obtained; and generating a ratio correction instruction to correct the pulping ratio parameters. According to the invention, the dynamic closed-loop control of the pile forming quality of the cement mixing pile under the complex geological condition is effectively realized, and the industry bottleneck that the traditional open-loop proportioning system cannot respond to the slurry state change in real time is broken through.

A concrete mortar mixing and stirring system belongs to the technical field of concrete production equipment. Aiming at the problems that an existing stirring system is difficult to accurately judge the mixing uniformity of concrete mortar and the quality is easily influenced due to excessive stirring or insufficient stirring, the system comprises a stirring tank, a vibration signal acquisition unit, a torque monitoring unit and a control unit, stirring blades in a stirring tank are driven by a motor, a vibration signal acquisition unit captures a tank body vibration signal, a torque monitoring unit detects the torque change of the motor, and a control unit decomposes the tank body vibration signal into a frequency domain signal and extracts a preset aggregate collision vibration frequency band energy value to generate a vibration energy sequence; and analyzing the torque change fluctuation intensity to generate a torque variation coefficient sequence, calculating a correlation coefficient sequence of the two, generating an adaptive shutdown threshold by a sliding time window, and cutting off a motor power supply when the correlation coefficient sequence is continuously lower than the threshold for a preset number of times. The device is mainly used for automatic stirring control of concrete mortar, and precise starting and stopping of the stirring process are achieved.

The invention relates to the technical field of cement prefabricated part production equipment, in particular to a cement prefabricated plate production device and method. Comprising a rack, and the rack is provided with a steel bar laying mechanism, a pouring and distributing mechanism, a precise vibrating mechanism, a forming and pressing mechanism and a conveying mechanism; the steel bar laying mechanism comprises a laying support, a moving assembly and a positioning assembly. The pouring and distributing mechanism comprises a storage bin and a grading and distributing assembly; the precise vibrating mechanism comprises a vibrating frame and a vibrating unit; the forming press-fit mechanism comprises a press-fit support, a press-fit driving assembly and a press-fit plate. According to the invention, the adjustable design of steel bar spacing is matched with the positioning assembly, so that the spacing of steel bars of different specifications is accurately adjusted, the steel bars are quickly placed at preset positions, and then the distribution amount of each area is adjusted according to the distribution of the steel bars through the grading distribution assembly to ensure sufficient slurry in the corresponding cement area; and the precise vibrating mechanism combines preset steel bar parameters to achieve differential vibrating, and the vibrating strength is enhanced in a steel bar dense area to guarantee sufficient slurry filling.

The utility model belongs to the technical field of concrete stirring equipment, and discloses a concrete stirring and mixing device with an automatic additive adding function, which comprises a rack and a stirring assembly arranged on the rack, the stirring assembly comprises a material storage barrel arranged on the rack; one end of the driving shaft is rotationally connected with the storage barrel, and the free end of the driving shaft penetrates through the top of the storage barrel; the crushing blade is arranged in the storage barrel, and the crushing blade is coaxially and fixedly connected with the driving shaft; the output end of the driving motor is fixedly connected with the driving shaft; according to the scheme, the driving motor drives the driving shaft and the crushing blades to rotate in the material storage barrel, and the shearing force generated by the blades of the crushing blades is utilized to crush and scatter agglomerated dry powder additives, so that the situation that a part of areas are not coagulated for a long time or the overall strength deviation is too large due to uneven dispersion of the retarders agglomerated with damp is avoided; the utility model solves the problem that the concrete additive is affected with damp and agglomerated.

Apparatus for real time water content and water cement monitoring on a ready-mix concrete truck includes at least one real time moisture measurement module or sensor configured tosense continuous real time moisture measurements of a batch of wet cement loaded into a rotating drum of a ready-mix concrete truck; andprovide signaling containing information about the continuous real time moisture measurements sensed.The apparatus may include either a hatch door of the rotating drum of the ready-mix concrete truck, or the rotating drum of the ready-mix concrete truck, or the ready-mix concrete truck itself.

The invention provides grouting and filling equipment for water-preserved mining of a coal mine, and relates to the technical field of mining equipment, and the grouting and filling equipment comprises a base frame piece, a grouting guide pipe piece, a slurry post-processing assembly and a plugging driving assembly. A plurality of groups of outer ring parts with hole wall pressure sensors are arranged on the outer wall of the grouting guide pipe piece, and a pipe end micro sensor is arranged at the grout outlet end; the inserting and pulling driving assembly drives the stirring assembly to push the outer ring part through the motor, and inserting and pulling of the grouting guide pipe piece are controlled. During working, the guide pipe piece is inserted into a grouting hole to a goaf, the sensor monitors rock mass pressure, temperature and sound wave signals in real time, the grouting pressure is dynamically adjusted in combination with formation resistance, and grout fluid channeling or insufficient filling is avoided. Through precise pressure regulation and automatic insertion and extraction, the problems of material waste, underground water pollution and insufficient goaf filling in traditional grouting are solved, and the environmental protection property and the engineering efficiency of water-preserved mining are remarkably improved.

The invention relates to the technical field of self-thermal-insulation mortar, in particular to self-thermal-insulation mortar and a preparation method thereof. Comprising the following components: Portland cement, a gradient graphene aerogel skeleton, metal organic framework nanoparticles, photo-thermal-phase change coupling microcapsules, magnetic field orientation Fe3O4 nanosheets, self-repairing microcapsules, silicon carbide nanowire aerogel, a water reducing agent and a fiber reinforced material. The gradient graphene aerogel skeleton, the photo-thermal-phase change coupling microcapsules and other materials with excellent thermal insulation performance are introduced, and a multi-layer thermal insulation structure is constructed. The gradient graphene aerogel skeleton has extremely low heat conductivity coefficient and high porosity, and can effectively prevent heat transfer; the photo-thermal-phase change coupling microcapsules can absorb and release a large amount of heat in the phase change process, and the heat preservation effect of the mortar is further improved.

The invention provides compositions and methods directed to carbonation of a cement mix during mixing. The carbonation may be controlled by one or more feedback mechanisms to adjust carbon dioxide delivery based on one or more characteristics of the mix or other aspects of the mixing operation.

The invention provides a concrete production system which comprises a feeding device, a material distributing device, a concrete stirring device and a control device and is characterized in that the concrete stirring device comprises three stirring assemblies, the material distributing device is used for sequentially conveying materials conveyed by the feeding device to each stirring assembly, and the control device is used for controlling the material distributing device to control the stirring assemblies. The control device comprises a concrete process control terminal, a data transceiving network, a server, a remote control terminal and a monitoring device, and the monitoring device is used for detecting the working states of the feeding device and the concrete stirring device; the data transmit-receive network, the server, the remote control terminal and the monitoring device are respectively in information connection with the process control terminal. By arranging the three stirring assemblies, concrete can be stirred in a time-sharing mode, the problem that a system is shut down during discharging and cleaning of a traditional single stirring tank is solved, and the production efficiency of the concrete is greatly improved.

The present invention relates to the technical field of mortar conveying, and in particular to a mortar conveying system, which includes a feed hopper, a feeding pipe connected to the bottom of the feed hopper, and a bracket fixed on the surface of the feed hopper. The system further includes: a auger rotatably connected to the inner wall of the feeding pipe, a support block fixed to the top of the bracket and a support mechanism installed thereon, and a servo motor fixed to the top of the support block. The present invention facilitates the disassembly and cleaning of the conveying pipe by the staff. In addition, this conveying system can not only break and stir the agglomerated mortar, but also reduce the blockage inside the discharge pipe, solving the problem that after the use of some current mortar conveyors, it is inconvenient for the staff to clean the conveying pipe and the auger, thus easily affecting the subsequent conveying efficiency, and solving the problem that when some current mortar conveyors are in use, the agglomerated mortar in the feed hopper that is not transported away in time easily affects the smoothness of the subsequent conveying operation.

A pretreatment mixing and stirring device includes a cylindrical housing having a top plate, a bottom plate arranged to oppose to the top plate, a side plate arranged between the top plate and the bottom plate, and a mixing and stirring region where a calcined gypsum and an additive are mixed and stirred in an interior surrounded by the top plate, the bottom plate, and the side plate, a disk-shaped rotating plate arranged inside the housing, a rotating drive shaft, penetrating the top or bottom plate, and coupled to the rotating plate, a calcined gypsum supply port, arranged in the top plate, and supplying the calcined gypsum to the mixing and stirring region, and an additive supply port, arranged in at least one of the top and side plates, and supplying the additive to the mixing and stirring region.

The invention relates to the technical field of concrete preparation, in particular to a preparation device and a preparation process of carbon-sequestration premixed concrete, and solves the problems that in the existing preparation process of the carbon-sequestration premixed concrete, carbon dioxide gas is inconvenient to inject into the concrete, so that a pipeline is easily blocked, and the production efficiency is high. And concentration control during carbon self-sequestration of the carbon dioxide gas is inconvenient. The device comprises a fixed carbon preparation mechanism and a split-flow carbon injection mechanism, a stirring driving mechanism is installed on the inner side of the middle of the fixed carbon preparation mechanism, a sealing pressure maintaining mechanism is installed at the upper end of the fixed carbon preparation mechanism, and the split-flow carbon injection mechanism is installed on the inner side of the bottom end of the fixed carbon preparation mechanism; the split-flow carbon injection mechanism comprises a conical separation strip; and the conical separation strip is fixedly connected with the bottom end of the stirring and material placing shell. Carbon dioxide gas is conveyed in a pressurized mode, the pipeline can be effectively prevented from being blocked by concrete, the concentration of the carbon dioxide gas can be conveniently monitored and adjusted, and high efficiency of carbon sequestration is kept.

The invention belongs to the technical field of pavement repairing, and discloses a material mixing and grouting integrated cement concrete pavement repairing device which comprises a frame, an adjusting assembly is arranged on the front face of the frame, a vibration assembly is arranged at the bottom of the adjusting assembly, and the vibration assembly comprises a fixing rod. According to the device, through cooperation of structures such as the vibration assembly and the supporting wheels, a knocking hammer of the vibration assembly is driven to knock a grouting area range in the moving process, mortar air injected into the device can be discharged through knocking vibration, and the device is convenient to use. According to the mortar filling device, mortar can permeate into gaps, filling uniformity is guaranteed, the vibration effect can be achieved through knocking, air of the mortar can be effectively emptied, meanwhile, the mortar can be prevented from overflowing, the flatness of the surface after the gaps are filled with the mortar can be guaranteed, and meanwhile grouting uniformity can be guaranteed.

A vehicle includes a chassis, a cab, a drum coupled to the chassis and configured to mix a concrete mixture received therein and selectively dispense the concrete mixture, a chute configured to be operable between a raised position and a lowered position such that, when in the lowered position, the chute is configured to receive the concrete mixture from the drum and provide the concrete mixture to a work location, a sensor configured to detect an operational characteristic and provide signals relating to the operational characteristics, and a control system. The control system is configured to receive the signals relating to the operational characteristic from the sensor, determine, based on signals relating to the operational characteristic, when the vehicle entered an operational state, generate a timestamp indicating when the vehicle entered the operational state, provide the timestamp and the operational state to a fleet management system.

The utility model relates to the technical field of concrete spraying machines, and discloses a building concrete spraying machine which comprises a machine shell, a rotor spraying assembly is fixedly installed on the machine shell through a plurality of sets of fixers and used for spraying concrete raw materials, and a feeding hopper is fixedly installed above the rotor spraying assembly and used for feeding the concrete raw materials into the machine shell. A partition plate is arranged between the feeding hopper and the rotor spraying assembly, and a discharging hole is formed in the partition plate and used for communicating the feeding hopper with the rotor spraying assembly and conveying concrete raw materials into the rotor spraying assembly through the feeding hopper. According to the concrete spraying machine for the building, by arranging the discharging mechanism composed of the tip cone block and the stirring fan blades, arch breaking and concrete raw material stirring can be effectively achieved, and the discharging speed is increased.

The invention discloses a UHPC-foam concrete composite material with a sandwich structure and a preparation method of the UHPC-foam concrete composite material. The composite material comprises two ultra-high performance concrete (UHPC) panel layers, a foam concrete sandwich layer of a negative Poisson's ratio three-dimensional framework prepared through a photocuring three-dimensional printing technology is arranged between the two ultra-high performance concrete (UHPC) panel layers, and the three-dimensional framework is of an inward-concave honeycomb topological structure and has the characteristic of transverse expansion after being pressed; impact stress can be effectively dispersed, and a dual energy dissipation path is formed through a synergistic effect with a porous energy absorption mechanism of the foam concrete. The panel layer and the sandwich layer are combined through a layered pouring process, and an interface is subjected to scabbling treatment so as to enhance the bonding strength. The composite material is superior to a traditional material in the aspects of compressive strength and energy absorption performance, is suitable for the fields of anti-explosion buildings, military protection engineering, frontier defense facilities and the like, and has a wide application prospect.

The invention discloses spatial free distribution micro-scale cage-shaped unit interlocking confined concrete and a preparation method thereof.The preparation method of the spatial free distribution micro-scale cage-shaped unit interlocking confined concrete comprises the steps that a concrete premix, a pouring formwork and a plurality of micro-scale cage-shaped units are prepared; the concrete premix and the multiple micro-scale cage-shaped constraint units are mixed, and pouring is completed in the formwork; and curing and hardening the concrete premix in the pouring template and a concrete reinforcing framework formed by interlocking the plurality of cage-shaped constraint units to obtain the spatial free distribution micro-scale cage-shaped unit interlocking constraint concrete. The cage-shaped constraint units with multiple concrete component scales are doped in the concrete premix, the spatial free distribution micro-scale cage-shaped unit interlocking constraint concrete is prepared, and the mechanical property of a concrete member can be improved.

The utility model relates to the technical field of constructional engineering, and discloses structural gap grouting equipment for constructional engineering construction, which comprises a base, a grouting mechanism is arranged at the top of the base, the grouting mechanism comprises a box body and a pump machine, the box body and the pump machine are both fixedly connected with the base, the input end of the pump machine is communicated with the base, and the output end of the pump machine is communicated with the base. The output end of the pump machine communicates with a grouting pipe through a hose, and a moving mechanism is arranged in an inner cavity of the base. By arranging the grouting mechanism, slurry condensation can be avoided, a grouting pipe can be conveniently used for grouting by opening a pump, the device is convenient to move by arranging the moving mechanism, a user can conveniently push the device by pushing a handle, the grouting pipe can be fixed by arranging the adjusting mechanism, and the grouting pipe can be driven to rotate by opening a third motor. The grouting direction can be adjusted conveniently, the height of the grouting pipe can be adjusted by starting the first motor, grouting can be conducted on ceilings, floors and vertical joints, and use is convenient.

The utility model provides a grouting device for road and bridge construction, which relates to the technical field of road and bridge construction and comprises a base, a stirring device is arranged in an inner cavity of a barrel I, and fixing devices are arranged on the surfaces of two connecting plates. According to the device, an electric push rod operates to drive two pressing plates to be downwards attached and embedded into the ground, four inserting rods at the bottoms of the pressing plates are inserted into the ground along with the pressing plates, at the moment, the whole device can be stably placed through the two pressing plates, and a motor operates to drive a plurality of stirring rods on the surface of a rotating rod to stir and mix slurry in a first barrel body; and the two scraping plates can stir the slurry in the second barrel body, the two U-shaped scraping plates can rotationally scrape the inner wall of the first barrel body, the two scraping plates can rotationally scrape the inner wall of the second barrel body, and the slurry adhering to the inner wall can be cleaned up.

The invention discloses a co-extrusion-molded microporous polyphenyl particle phase change energy storage gradient water stop thermal insulation structural slab, the thermal insulation structural slab sequentially comprises an EVA water stop layer, a strength layer and a thermal insulation layer from outside to inside, the EVA water stop layer is prepared by doping EVA rubber powder and fly ash into cement; the strength layer is made of high-strength cement; the heat preservation layer is made of microporous polystyrene foaming particles, microcapsules containing phase change materials and foaming cement. Through innovative design and material selection, the heat preservation performance of the gradient water stop heat preservation layer structural slab is gradually reduced from inside to outside so as to meet the requirements of different environment temperatures, the highest waterproof performance is provided on the outermost layer of the structure, and the heat preservation performance is gradually reduced inwards so as to reduce condensation of internal moisture; and an efficient, environment-friendly and economical solution is provided for the building industry. The invention solves the problem of balance between thermal insulation performance and fireproof performance of the traditional building thermal insulation material, and improves the problems of insufficient waterproof performance, limited heat energy storage capacity and the like of the traditional material.

The invention discloses a preparation method and a use method of a concrete wall with self-heating, phase change energy storage and thermoelectric effects, and belongs to the technical field of novel wall materials. In order to develop a multifunctional intelligent concrete wall, cement, water, fine aggregate and coarse aggregate are weighed according to the mass ratio of 1: (0.2-1): (1.3-3): (2.5-5), a conductive material accounting for 0.8-3% of the volume of concrete is weighed, a packaging phase change material accounting for 2-10% of the mass of the cement is weighed, the conductive material, the cement, the fine aggregate and the coarse aggregate are put into a stirring machine, and the stirring machine is used for stirring; after uniform stirring, water is added for continuous stirring, in the process, a packaging phase change material is added and stirred to be uniform, functional cement concrete is obtained for wall pouring, a positive electrode or a negative electrode is inserted into a wall seam during wall pouring, an insulating layer is used for blocking, and an insulating layer is arranged on each of the inner side and the outer side of the functional cement concrete wall; and the wall is maintained for a certain time after being poured. The wall body disclosed by the invention has multiple functions.

The invention relates to a preparation method of low-carbon magnesium phosphate cement. The low-carbon magnesium phosphate cement is prepared from the following raw materials in parts by weight: 40-50 parts of magnesium oxide, 20-30 parts of phosphate, 1-2 parts of a retarder, 6-8 parts of quartz powder, 1-3 parts of glass fibers, 0.5-1.5 parts of polypropylene fibers, 1-3 parts of steel fibers, 10-20 parts of slag powder, 5-15 parts of silica fume, 1-2 parts of nano silicon dioxide, 0.5-1.5 parts of nano aluminum oxide and 4-6 parts of an additive. According to the preparation method of the low-carbon magnesium phosphate cement, mineral admixtures or industrial waste residues which are lower in price are introduced to serve as partial substitute materials, the requirement for high-cost raw materials is reduced, waste such as fly ash and slag can be used for replacing partial expensive raw materials, the production cost is reduced, cyclic utilization of resources is promoted, and the low-carbon magnesium phosphate cement is suitable for industrial production. Secondly, in order to overcome the problem that the strength of traditional low-carbon magnesium phosphate cement is reduced in water, a special retarder, a stabilizer and other modified materials are added, and dissolution of hydration products in water can be effectively inhibited.

The invention relates to the technical field of building construction equipment, in particular to a concrete mixing device with movable blades, which comprises a mixing drum, a mixing shaft, a vibrating screen component and an adjusting mixing component, the mixing shaft is arranged in the mixing drum, and the adjusting mixing component is mounted on the mixing shaft through a hinge structure. The angle and the length of the blade can be adjusted by adjusting the stirring assembly; the vibrating screen component is arranged at the top of the stirring barrel and can pretreat raw materials and remove caked impurities; by adjusting the stirring assembly, stirring dead angles can be eliminated, the concrete stirring uniformity is improved, material segregation is reduced, and the stirring efficiency is improved.

With increasing demands for cost reductions, profitability, tighter construction deadlines and potential liabilities construction companies, raw material suppliers, infrastructure owners, etc. are seeking cost effective systems, method and processes relating to the quality control of said construction materials. Accordingly processes, systems and methods are disclosed relating to concrete and other construction materials such as automatic slump measurement, automatic load measurement, artificial intelligence—machine learning optimization of material mixes, and automatic ingestion of data from unstructured documents to provide data to artificial intelligence—machine learning processes.

A vehicle includes a mixing drum rotatably coupled to a chassis, a fill level sensor configured to provide a signal indicative of a fill level of a material within the mixing drum, an axle assembly including a first tractive element, a suspension actuator coupled to the axle assembly and configured to apply a biasing force that forces the first tractive element into engagement with a ground surface, a lift axle including a second tractive element, a lift actuator coupled to the lift axle, and a controller. The controller is configured to calculate a target weight to be supported by at least one of the first tractive element or the second tractive element based on the fill level of the material within the mixing drum and control the suspension actuator to vary the biasing force based on the target weight.

The invention relates to the field of flow-state solidified soil, and discloses flow-state solidified soil prepared from construction waste, preparation equipment and a preparation method. The pre-dehydration module is used for controlling the water content of discharged materials to be less than or equal to 14%; the system further comprises a main drying system, an auxiliary material adding device, a water adding device and mixing equipment. The main drying system comprises a high-temperature drying area, a high-temperature buffering area and a heat preservation discharging area which are arranged in the vertical direction, materials treated by the pre-dehydration module are lifted into the high-temperature drying area through lifting equipment, the main drying system comprises at least two sets of material conveying belts, and a plurality of hot air openings are evenly formed in the top of the high-temperature drying area; an inlet of the hot air pipe is communicated with an air cavity heated by a heat source; a recovery channel communicating with the portion, close to the bottom, of the heat preservation discharging area is arranged on one side of the main drying system, and an obliquely-arranged dust baffle is arranged in the recovery channel. According to the invention, the problems of fluctuation of construction waste sources and large change of material moisture content in the prior art are solved.

The invention relates to the technical field of concrete prefabricated part preparation, and discloses assembly type concrete prefabricated part preparation equipment and technology.The assembly type concrete prefabricated part preparation equipment comprises a vertical shaft planetary mixer, a buffer pipe is fixedly connected to one feeding port, and two partition plates are fixedly connected to the inner wall of the buffer pipe in the axial direction; a rotating plate is jointly and rotationally connected between the two partition plates, a plurality of rotating rings are concentrically arranged on the outer side of the rotating plate at equal intervals, and a plurality of push plates are jointly and fixedly connected between every two adjacent rotating rings and between the rotating plate and the adjacent rotating rings. The push plate drives the raw materials to move in the annular channel and is matched with the fixing rod to scatter the caked raw materials, through vibration and rotation of the sieve plate, the raw materials are evenly spread on the sieve plate and further scattered, then the raw materials are scattered into the stirring cylinder, the raw materials are effectively mixed with slurry, and extrusion damage to aggregate due to high-speed rotation of the stirring arm is avoided.

The invention relates to the technical field of building construction, in particular to a cement material stirring device for building decoration engineering construction, a screening mechanism in the cement material stirring device drives an inclined box and an internal inclined screen to continuously move up and down in a reciprocating manner through a transmission assembly, and dynamic screening of input cement is achieved; qualified powder rapidly penetrates through the screen and enters a subsequent process through the vertical pipe, intercepted agglomerates automatically roll down to a lower outlet under the action of vibration and inclination, the agglomerated cement materials are screened, meanwhile, the smashing mechanism ingeniously obtains power from a driving motor through a rotating shaft, and the smashing efficiency is improved. Crushing cutters distributed on a first rotating rod and a second rotating rod in a staggered mode in the box body are driven by a bevel gear and a gear set to rotate oppositely at a high speed, cakes falling from a lower outlet are thoroughly cut and scattered, the cakes are reduced into fine powder and then collected into a stirring barrel, and the efficiency and quality of raw material preparation before stirring are greatly improved; and the problem of non-uniform slurry caused by cement caking and core hardening is fundamentally avoided.

The invention relates to the technical field of floor slab concrete, and discloses aerated concrete applied to sound insulation and heat preservation of a floor slab and a preparation method of the aerated concrete aiming at the problems that an existing sound insulation floor slab containing the aerated concrete is poor in structural stability, namely the sound insulation effect and the long-term effect of mechanical properties are poor and the like. Comprising 30-40 parts of fly ash, 25-35 parts of sand, 15-20 parts of ardealite, 10-15 parts of quick lime, 5-8 parts of silicon-aluminum porous microspheres, 3-5 parts of slaked lime, 1-2 parts of Fe3O4-polypropylene fiber and 0.2-0.5 part of aluminum powder. The preparation method of the silicon-aluminum porous microspheres comprises the following steps: mixing a silicon source, an aluminum source and a surfactant, and uniformly stirring to obtain silicon-aluminum homogenate; and adding nano titanium dioxide, carrying out ultrasonic dispersion and freeze drying, transferring into a heating furnace, and heating and calcining to obtain the silicon-aluminum porous microspheres. The supporting and strengthening effects on pores are realized through gas production reaction and the like in the material, so that the structural strength and durability of the aerated concrete are improved.