1. The inorganic composite foamed cement insulation board is characterized by comprising the following raw materials in parts by weight:

70-100 parts of cement, 30-60 parts of fly ash, 30-40 parts of fine sand, 10-20 parts of nano hollow microspheres, 20-50 parts of foaming agent, 15-25 parts of fiber mixture, 5-20 parts of calcium stearate and 120-160 parts of water at 25-50 ℃.

2. The manufacturing method of the inorganic composite foamed cement insulation board according to claim 1, characterized by comprising the following steps:

uniformly stirring cement, fly ash, fine sand and water to prepare cement paste;

adding a fiber mixture and calcium stearate into the cement paste, and heating and stirring to obtain mixed cement paste;

adding a foaming agent and nano hollow microspheres into the mixed cement slurry, stirring for a preset time, and foaming to obtain foamed slurry;

pouring the foaming slurry into a mold, standing for foaming until the blank is hardened, and performing initial maintenance after the blank is hardened to obtain a foaming cement insulation board blank;

and demolding the blank of the foamed cement insulation board, and curing again to obtain the inorganic composite foamed cement insulation board.

3. The method for manufacturing the inorganic composite foamed cement insulation board according to claim 2, wherein the step of uniformly stirring cement, fly ash, fine sand and water to prepare cement paste comprises the following steps:

and mixing the cement and the fly ash, and then adding the fine sand and water to uniformly stir to obtain the cement paste.

4. The method for manufacturing the inorganic composite foamed cement insulation board according to claim 2, wherein the step of adding the fiber mixture and the calcium stearate to the cement paste, heating and stirring to obtain the mixed cement paste comprises the following steps:

adding the fiber mixture and calcium stearate into the cement paste, heating and stirring to obtain mixed cement paste, and heating and stirring to 30 ℃.

5. The method for manufacturing the inorganic composite foamed cement insulation board according to claim 2,

adding a foaming agent and nano hollow microspheres into the mixed cement slurry, stirring for a preset time, and foaming to obtain foamed slurry, wherein the foaming agent and the nano hollow microspheres comprise:

stirring the mixed cement slurry, and adding the foaming agent, wherein the foaming agent slurry is prepared from the following components in parts by weight: animal protein foaming agent or plant protein foaming agent, and then stirring for 10 min;

and then stirring the mixed cement slurry again, adding the nano hollow microspheres into the mixed cement slurry, wherein the granularity of the nano hollow microspheres is 4-5nm, the hollow rate is more than 80%, and standing for 5min again.

6. The method for manufacturing the inorganic composite foamed cement insulation board according to claim 2,

pouring the foaming slurry into a mould to statically foam until the blank is hardened, and after the blank of the injection mould is hardened, carrying out initial maintenance to obtain a blank of the foaming cement insulation board:

standing for 2-6 h, and curing for 1-2 days at the initial stage.

7. The inorganic composite foamed cement insulation board of claim 2,

in the step of demolding and curing the foamed cement insulation board blank again:

the curing time is 4-6 days.

8. The manufacturing device adopting the manufacturing method of the inorganic composite foamed cement insulation board according to claim 2 is characterized in that,

the stirring device comprises a frame body, a stirring box, a stirring assembly, a feeding hole and a discharging hole, wherein the frame body is arranged on two side edges of the stirring box, the stirring assembly is arranged inside the stirring box, the feeding hole is arranged above the stirring box, and the discharging hole is arranged below the stirring box;

the stirring assembly comprises a motor, a fixed cylinder, a stirring rod, a stirring block and a fixed rod, wherein the number of the fixed rod is multiple and many, the fixed rod is respectively connected with the stirring box fixedly and is positioned on two inner side walls of the stirring box, the motor is arranged above the stirring box, one end of the fixed cylinder is fixedly connected with the output end of the motor, the other end of the fixed cylinder is inserted into the stirring box and is fixedly connected with the stirring block, the number of the stirring rod is multiple and many, the stirring rod is arranged on two side edges of the fixed cylinder, and the stirring rod is respectively arranged with the fixed rod in a mutually staggered mode.

Background

The foaming cement is widely used in the field of buildings at present and is an ideal heat-preservation, sound-insulation, heat-insulation and fireproof material. A large number of foamed cement boards have thus appeared in the prior art.

However, in the existing manufacturing method of the foamed cement board, the prepared foamed cement insulation board has poor insulation effect due to uneven stirring.

Disclosure of Invention

The invention aims to provide an inorganic composite foamed cement insulation board and a manufacturing method and device thereof, and aims to solve the technical problem that in the existing manufacturing method of the foamed cement board in the prior art, the prepared foamed cement insulation board is poor in insulation effect due to uneven stirring.

In order to achieve the purpose, the invention adopts an inorganic composite foaming cement insulation board which comprises the following raw materials in parts by weight:

70-100 parts of cement, 30-60 parts of fly ash, 30-40 parts of fine sand, 10-20 parts of nano hollow microspheres, 20-50 parts of foaming agent, 15-25 parts of fiber mixture, 5-20 parts of calcium stearate and 120-160 parts of 25-30 ℃.

The invention also provides a manufacturing method of the inorganic composite foamed cement insulation board, which comprises the following steps:

uniformly stirring cement, fly ash, fine sand and water to prepare cement paste;

adding a fiber mixture and calcium stearate into the cement paste, and heating and stirring to obtain mixed cement paste;

adding a foaming agent and nano hollow microspheres into the mixed cement slurry, stirring for a preset time, and foaming to obtain foamed slurry;

pouring the foaming slurry into a mold, standing and foaming until the blank is hardened, and after the blank of the injection mold is hardened, carrying out initial maintenance to obtain a blank of the foaming cement insulation board;

and demolding the blank of the foamed cement insulation board, and curing again to obtain the inorganic composite foamed cement insulation board.

Wherein, the cement and the fly ash are mixed, and then the fine sand and the water are added for uniform stirring.

Adding the fiber mixture and calcium stearate into the cement paste, heating and stirring to obtain mixed cement paste, and heating and stirring to 30 ℃.

Adding a foaming agent and nano hollow microspheres into the mixed cement slurry, stirring for a preset time, and foaming to obtain foamed slurry, wherein the foaming agent and nano hollow microspheres comprise:

stirring the mixed cement slurry, and adding the foaming agent, wherein the foaming agent slurry is prepared from the following components in parts by weight: animal protein foaming agent or plant protein foaming agent, and then stirring for 10 min;

and then stirring the mixed cement slurry again, adding the nano hollow microspheres into the mixed cement slurry, wherein the granularity of the nano hollow microspheres is 4-5nm, the hollow rate is more than 80%, and standing for 5min again.

Pouring the foaming slurry into a mold, standing for foaming until the blank is hardened, and after the blank is hardened by injection molding, carrying out initial maintenance to obtain a foaming cement insulation board blank:

standing for 2-6 h, and curing for 1-2 days at the initial stage.

Wherein, in the step of demoulding and curing the blank of the foamed cement heat-insulating plate again:

the curing time is 4-6 days.

The invention also provides a manufacturing device adopting the manufacturing method of the inorganic composite foamed cement insulation board, which comprises a frame body, a stirring box, a stirring assembly, a feeding hole and a discharging hole, wherein the frame body is arranged on two side edges of the stirring box;

the stirring assembly comprises a motor, a fixed cylinder, a stirring rod, a stirring block and a fixed rod, wherein the number of the fixed rod is multiple and many, the fixed rod is respectively connected with the stirring box fixedly and is positioned on two inner side walls of the stirring box, the motor is arranged above the stirring box, one end of the fixed cylinder is fixedly connected with the output end of the motor, the other end of the fixed cylinder is inserted into the stirring box and is fixedly connected with the stirring block, the number of the stirring rod is multiple and many, the stirring rod is arranged on two side edges of the fixed cylinder, and the stirring rod is respectively arranged with the fixed rod in a mutually staggered mode.

The invention relates to an inorganic composite foamed cement insulation board and a manufacturing device of a manufacturing method thereof, wherein the manufacturing device comprises the following steps: uniformly stirring cement, fly ash, fine sand and water to obtain cement paste; adding a fiber mixture and calcium stearate into the cement paste, and heating and stirring to obtain mixed cement paste; adding a foaming agent and the nano hollow microspheres into the mixed cement slurry, stirring for a certain time again, and foaming to obtain foamed slurry; injecting the foaming slurry into a mold for internal static foaming until the blank is hardened, and after the blank of the injection mold is hardened, performing initial maintenance to obtain a blank of the foaming cement insulation board; and demolding the blank of the foamed cement insulation board, and maintaining again to obtain the inorganic composite foamed cement insulation board, wherein the inorganic composite foamed cement insulation board has good structural strength, so that the insulation effect is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a flow chart of the steps of example 1 of the present invention.

Fig. 2 is a flowchart of the steps of embodiment 2 of the present invention.

Fig. 3 is a flowchart of the steps of embodiment 3 of the present invention.

FIG. 4 is a side view of a manufacturing device of the manufacturing method of the mechanical composite foamed cement insulation board of the present invention.

Fig. 5 is a cross-sectional view of the a-a line structure of fig. 4 in accordance with the present invention.

1-frame body, 2-stirring box, 3-stirring component, 31-motor, 32-fixed cylinder, 33-stirring rod, 34-stirring block, 35-fixed rod, 4-feeding hole, 5-discharging hole, 6-heating component, 61-heating pipe, 62-electric heating wire and 63-fixed support.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1, in embodiment 1, the present invention provides a method for manufacturing an inorganic composite foamed cement insulation board, including the following steps:

s1: uniformly stirring 70 parts of cement, 30 parts of fly ash, 30 parts of fine sand and 120 parts of water at 25 ℃ to obtain cement paste;

s2: adding 15 parts of fiber mixture and 5 parts of calcium stearate into the cement paste, and heating and stirring again to obtain mixed cement paste;

s3: adding 20 parts of foaming agent and 10 parts of nano hollow microspheres into the mixed cement slurry, stirring for 10min, and foaming to obtain foamed slurry;

s4: pouring the foaming slurry into a mold, standing for foaming until the blank is hardened, and performing initial maintenance after the blank is hardened to obtain a foaming cement insulation board blank;

s5: and demolding the blank of the foamed cement insulation board, and curing again to obtain the inorganic composite foamed cement insulation board.

Wherein, the step of evenly stirring cement, fly ash, fine sand and water to obtain cement paste comprises the following steps: and mixing the cement and the fly ash, then adding the fine sand and the water, and stirring and mixing. Adding the fiber mixture and calcium stearate, wherein the fiber mixture is one or a combination of more of polypropylene fibers, polyethylene fibers, wood fibers and hemp fibers, heating and stirring to obtain mixed cement slurry, adding a foaming agent and nano hollow microspheres into the mixed cement slurry, stirring for 10min, and foaming to obtain foamed slurry, and the method comprises the following steps of: stirring the mixed cement paste, adding the foaming agent, and standing for 10 min; and then stirring the mixed cement paste again, and simultaneously adding the nano hollow microspheres into the mixed cement paste. Pouring the foaming slurry into a mold, standing for foaming for 2-6 hours until the blank is hardened, and after the blank of the injection mold is hardened, carrying out initial curing to obtain a blank of the foaming cement insulation board: the initial curing time is 1-2 days. In the step of demolding and curing the foamed cement insulation board blank again: the curing time is 4-6 days. And after the inorganic composite foaming water thermal insulation cement board is obtained, immersing the inorganic composite foaming water thermal insulation cement board into the epoxy emulsion for 2-4 min, and then taking out and drying. The inorganic composite foaming water heat insulation cement board has good structural strength, thereby enhancing the heat insulation effect.

Referring to fig. 2, in embodiment 2, the present invention provides a method for manufacturing an inorganic composite foamed cement insulation board, including the following steps:

s1: uniformly stirring 100 parts of cement, 60 parts of fly ash, 40 parts of fine sand and 160 parts of 50 ℃ water to obtain cement paste;

s2: adding 25 parts of fiber mixture and 20 parts of calcium stearate into the cement paste, and heating and stirring again to obtain mixed cement paste;

s3: adding 50 parts of foaming agent and 20 parts of nano hollow microspheres into the mixed cement slurry, stirring for 10min, and foaming to obtain foamed slurry;

s4: pouring the foaming slurry into a mold, standing for foaming until the blank is hardened, and performing initial maintenance after the blank is hardened to obtain a foaming cement insulation board blank;

s5: and demolding the blank of the foamed cement insulation board, and curing again to obtain the inorganic composite foamed cement insulation board.

Wherein, the step of evenly stirring cement, fly ash, fine sand and water to obtain cement paste comprises the following steps: and mixing the cement and the fly ash, then adding the fine sand and the water, and stirring and mixing. Adding the fiber mixture and calcium stearate, wherein the fiber mixture is one or a combination of more of polypropylene fibers, polyethylene fibers, wood fibers and hemp fibers, heating and stirring to obtain mixed cement slurry, adding a foaming agent and nano hollow microspheres into the mixed cement slurry, stirring for 10min, and foaming to obtain foamed slurry, and the method comprises the following steps of: stirring the mixed cement paste, adding the foaming agent, and standing for 10 min; and then stirring the mixed cement paste again, and simultaneously adding the nano hollow microspheres into the mixed cement paste. Pouring the foaming slurry into a mold, standing for foaming for 2-6 hours until the blank is hardened, and after the blank of the injection mold is hardened, carrying out initial curing to obtain a blank of the foaming cement insulation board: the initial curing time is 1-2 days. In the step of demolding and curing the foamed cement insulation board blank again: the curing time is 4-6 days. And after the inorganic composite foaming water thermal insulation cement board is obtained, immersing the inorganic composite foaming water thermal insulation cement board into the epoxy emulsion for 2-4 min, and then taking out and drying. The inorganic composite foaming water heat insulation cement board has good structural strength, thereby enhancing the heat insulation effect.

Referring to fig. 3, in embodiment 3, the present invention provides a method for manufacturing an inorganic composite foamed cement insulation board, including the following steps:

s1: uniformly stirring 80 parts of cement, 50 parts of fly ash, 35 parts of fine sand and 140 parts of 35 ℃ water to obtain cement paste;

s2: adding 20 parts of fiber mixture and 15 parts of calcium stearate into the cement paste, and heating and stirring again to obtain mixed cement paste;

s3: adding 35 parts of foaming agent and 15 parts of nano hollow microspheres into the mixed cement slurry, stirring for 10min, and foaming to obtain foamed slurry;

s4: pouring the foaming slurry into a mold, standing for foaming until the blank is hardened, and performing initial maintenance after the blank is hardened to obtain a foaming cement insulation board blank;

s5: and demolding the blank of the foamed cement insulation board, and curing again to obtain the inorganic composite foamed cement insulation board.

Wherein, the step of evenly stirring cement, fly ash, fine sand and water to obtain cement paste comprises the following steps: and mixing the cement and the fly ash, then adding the fine sand and the water, and stirring and mixing. Adding the fiber mixture and calcium stearate, wherein the fiber mixture is one or a combination of more of polypropylene fibers, polyethylene fibers, wood fibers and hemp fibers, heating and stirring to obtain mixed cement slurry, adding a foaming agent and nano hollow microspheres into the mixed cement slurry, stirring for 10min, and foaming to obtain foamed slurry, and the method comprises the following steps of: stirring the mixed cement paste, adding the foaming agent, and standing for 10 min; and then stirring the mixed cement paste again, and simultaneously adding the nano hollow microspheres into the mixed cement paste. Pouring the foaming slurry into a mold, standing for foaming for 2-6 hours until the blank is hardened, and after the blank of the injection mold is hardened, carrying out initial curing to obtain a blank of the foaming cement insulation board: the initial curing time is 1-2 days. In the step of demolding and curing the foamed cement insulation board blank again: the curing time is 4-6 days. And after the inorganic composite foaming water thermal insulation cement board is obtained, immersing the inorganic composite foaming water thermal insulation cement board into the epoxy emulsion for 2-4 min, and then taking out and drying. The inorganic composite foaming water heat insulation cement board has good structural strength, thereby enhancing the heat insulation effect.

Referring to fig. 4 and 5, the invention further provides a manufacturing device using the manufacturing method of the inorganic composite foamed cement insulation board, which includes a frame body 1, a stirring box 2, a stirring assembly 3, a feeding port 4 and a discharging port 5, wherein the frame body 1 is arranged on two side edges of the stirring box 2, the stirring assembly 3 is arranged inside the stirring box 2, the feeding port 4 is arranged above the stirring box 2, and the discharging port 5 is arranged below the stirring box 2;

stirring subassembly 3 includes motor 31, solid fixed cylinder 32, puddler 33, stirring piece 34 and dead lever 35, the quantity of dead lever 35 is many, many dead lever 35 respectively with 2 fixed connection of agitator tank, and be located the inside both sides wall of agitator tank 2, motor 31 set up in the top of agitator tank 2, solid fixed cylinder 32 one end with motor 31's output fixed connection, gu fixed cylinder 32's the other end inserts agitator tank 2, and with stirring piece 34 fixed connection, the quantity of puddler 33 is many, many puddler 33 all set up in gu fixed cylinder 32's both sides limit, and many puddler 33 respectively with dead lever 35 sets up in a staggered way each other.

In the process of manufacturing the inorganic composite foamed cement insulation board, the frame body 1 supports the stirring box 2, when raw materials need to be stirred and mixed, the raw materials are put into the stirring box 2 through the feed inlet 4, the stirring assembly 3 in the stirring box 2 is started, the motor 31 of the stirring assembly 3 operates, the output end of the motor 31 drives the fixed cylinder 32 to rotate, the fixed cylinder 32 drives the stirring block 34 to rotate in the stirring box 2, the stirring rods 33 are arranged on two side edges of the fixed cylinder 32, the fixing rods 35 are arranged on two side edges of the stirring box 2, when the fixed cylinder 32 rotates, the stirring rods 33 are driven to rotate, the stirring rods 33 and the fixing rods 35 are arranged, and after stirring, valves on the side edges of the discharge port 5 are opened in a staggered manner, the raw materials are discharged through the discharge port 5 below the stirring box 2, so that the raw materials can be more fully mixed.

Further, the manufacturing device of the inorganic composite foamed cement insulation board further comprises a heating assembly 6, wherein the heating assembly 6 is fixedly connected with the fixed cylinder 32 and is positioned inside the fixed cylinder 32.

In the present embodiment, the heating unit 6 is provided inside the fixed cylinder 32, and the heating unit 6 heats the material inside the stirring tank 2 by heat transfer inside the fixed cylinder 32, thereby enhancing the stirring effect.

Further, the heating assembly 6 includes a heating tube 61 and a heating wire 62, the heating tube 61 is disposed inside the fixing cylinder 32, and the heating wire 62 is sleeved outside the heating tube 61.

In this embodiment, the heating pipe 61 is disposed inside the fixing cylinder 32, and the heating wire 62 is sleeved outside the heating pipe 61, so as to assist the heating pipe 61 and enhance the heating effect, thereby enhancing the heat transfer and facilitating the manufacture of the inorganic composite foamed cement insulation board.

Further, the heating assembly 6 further comprises two fixing supports 63, and the two ends of the heating pipe 61 are fixedly connected with the fixing supports 63.

In the present embodiment, the fixing brackets 63 are provided at both ends of the heating pipe 61, and the fixing brackets 63 can support the heating pipe 61.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.