阅读说明：本技术 一种轻质抹灰石膏砂浆及其制备方法 (Lightweight plastering gypsum mortar and preparation method thereof ) 是由 康琳 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种轻质抹灰石膏砂浆及其制备方法,由以下步骤组成：制备石膏粉：将石膏进行磨粉处理,得到细度均匀的石膏粉；制备淀粉醚：淀粉为原料,并通过铜盐为催化剂,并借助反应釜和超声波对淀粉进行硅醚化反应,得到淀粉醚；制备原料混合物：石膏粉、淀粉醚、水泥、粉煤灰、保水剂倒入混料装置中,进行均匀混合；制备抹灰石膏：将步骤三中的混合和集料进行再次充分混合,得到抹灰石膏,本发明涉及建筑材料技术领域。该轻质抹灰石膏砂浆及其制备方法,达到了提高综合能力的效果,增稠能力好,同时减少受潮湿天气的影响,不易出现空鼓、开裂、表面起灰或脱落的质量问题,延长了建筑物的使用寿命,提高了使用性能。(The invention discloses a lightweight plastering gypsum mortar and a preparation method thereof, and the lightweight plastering gypsum mortar comprises the following steps: preparing gypsum powder: grinding gypsum to obtain gypsum powder with uniform fineness; preparing starch ether: taking starch as a raw material, taking copper salt as a catalyst, and carrying out silicon etherification reaction on the starch by means of a reaction kettle and ultrasonic waves to obtain starch ether; preparing a raw material mixture: pouring gypsum powder, starch ether, cement, fly ash and a water-retaining agent into a mixing device, and uniformly mixing; preparing plastering gypsum: the invention relates to the technical field of building materials, and discloses plastering gypsum obtained by fully mixing the mixture and aggregate in the third step. The lightweight plastering gypsum mortar and the preparation method thereof achieve the effect of improving comprehensive capacity, have good thickening capacity, simultaneously reduce the influence of wet weather, are not easy to cause quality problems of hollowing, cracking, surface dusting or falling, prolong the service life of buildings and improve the service performance.)

1. A preparation method of light plastering gypsum mortar is characterized by comprising the following steps:

step one, preparing gypsum powder: grinding gypsum to obtain gypsum powder with uniform fineness;

step two, preparing starch ether: taking starch such as potato starch, cassava starch, corn starch, wheat starch and the like as raw materials, taking copper salt as a catalyst, and carrying out silicon etherification reaction on the starch by means of a reaction kettle and ultrasonic waves to obtain starch ether;

step three, preparing a raw material mixture: pouring the gypsum powder in the step one, the starch ether, the cement, the fly ash and the water-retaining agent in the step two into a mixing device, and uniformly mixing;

step four, preparing plastering gypsum: and fully mixing the mixture and the aggregate in the third step again to obtain the plastering gypsum.

2. The preparation method of the lightweight plastering gypsum mortar of claim 1, wherein the preparation method comprises the following steps: the compounding device in the third step include organism (1), top one side of organism (1) is provided with power unit (2), the top of organism (1) and the position that is close to power unit (2) are provided with feeder hopper (3), just it is connected with live-rollers (4) to be located the central point rotation between the top of organism (1) inner wall and the corresponding both sides in bottom, the inner wall top that organism (1) was run through on the top of live-rollers (4) and is connected with power unit (2) cooperation, the fixed surface of live-rollers (4) is connected with agitating unit (5), the one end that live-rollers (4) were kept away from in agitating unit (5) and the position that is close to organism (1) inner wall is provided with scrapes wall device (6), the inner wall of organism (1) is provided with protruding device (7).

3. The preparation method of the lightweight plastering gypsum mortar of claim 2, wherein the preparation method comprises the following steps: agitating unit (5) are equipped with stirring tooth (51), bulb slide bar (52), reset spring (53), push rod (54), cambered surface lug (55), the one end of stirring tooth (51) is connected with the fixed surface of live-rollers (4), bulb slide bar (52) sliding connection is inside and is located the surface position, reset spring (53) are fixed between bulb slide bar (52) tip and the inside corresponding both sides of stirring tooth (51), push rod (54) sliding connection is in the inside of stirring tooth (51), cambered surface lug (55) set up in the inside of stirring tooth (51) and fix the surface at push rod (54).

4. The preparation method of the lightweight plastering gypsum mortar of claim 3, wherein the preparation method comprises the following steps: sliding holes matched with the ball head sliding rod (52) and the push rod (54) are formed in the stirring teeth (51), and accommodating cavities matched with the ball head sliding rod (52), the return spring (53), the push rod (54) and the cambered surface convex block (55) are formed in the stirring teeth (51).

5. The preparation method of the lightweight plastering gypsum mortar of claim 2, wherein the preparation method comprises the following steps: scrape wall device (6) and be equipped with and scrape strip (61), elastic component (62), magnetic stripe (63), the one end sliding connection who keeps away from live-rollers (4) inside and agitating unit (5) of scraping strip (61), elastic component (62) set up in the inside of scraping strip (61) and be located the tip position of agitating unit (5), and magnetic stripe (63) set up in the inside of scraping strip (61) and be close to the position of elastic component (62).

6. The preparation method of the lightweight plastering gypsum mortar of claim 1, wherein the preparation method comprises the following steps: the anti-collision device is characterized in that the protruding device (7) is provided with an arc elastic plate (71) and a magnetic knocking device (72), the end of the arc elastic plate (71) is fixedly connected with the inner wall of the machine body (1), the arc elastic plate (71) is uniformly distributed on the inner wall of the machine body (1), and the magnetic knocking device (72) is arranged on the inner wall of the machine body (1) and located at the position of the arc elastic plate (71).

7. The preparation method of the lightweight plastering gypsum mortar of claim 6, wherein the preparation method comprises the following steps: the magnetic knocking device (72) is provided with an elastic wire (721), a counterweight ball (722) and a magnetic ball (723), one end of the elastic wire (721) is fixedly connected with the inner wall of the machine body (1), the counterweight ball (722) is fixedly connected with one end, far away from the inner wall of the machine body (1), of the elastic wire (721), and the magnetic ball (723) is arranged in the inner center of the counterweight ball (722).

Technical Field

The invention relates to the technical field of building materials, in particular to light plastering gypsum mortar and a preparation method thereof.

Background

With the continuous development of science and technology and the continuous progress of society, the construction industry is also quietly and quietly developed. With the deep promotion of the national policy of energy conservation and environmental protection, the industrial byproduct gypsum represented by calcined desulfurized gypsum is used as a main raw material for preparing semi-aqueous plastering gypsum, and is widely developed and applied. The plastering gypsum is a green environment-friendly material suitable for indoor plastering of novel walls. The plastering gypsum is a good matching material, and can ensure that a plastering layer does not bulge and crack. The gypsum slurry is easy to permeate into the pores on the surface of the wallboard, and expands in volume during hydration to form bar tenons and fine pointing seams, so that the bonding strength of the plastering layer and the wallboard is increased.

At present, the existing light plastering gypsum mortar in the market has poor bonding strength and is easily affected by dampness, and particularly in plum rain seasons, the quality problems of hollowing, cracking, surface dusting and the like can occur, so that the service life and normal use of a building are affected, the condition of large-area falling is easily caused in serious conditions, and the service performance is reduced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides light plastering gypsum mortar and a preparation method thereof, which solve the problems that the existing light plastering gypsum mortar has poor bonding strength and is easily affected by dampness, and particularly, in plum rain seasons, the quality problems of hollowing, cracking, surface dusting and the like can occur, the service life and normal use of a building are affected, and the condition of large-area shedding is easily caused in serious seasons, so that the service performance is reduced.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation method of light plastering gypsum mortar comprises the following steps:

step one, preparing gypsum powder: grinding gypsum to obtain gypsum powder with uniform fineness;

step two, preparing starch ether: taking starch such as potato starch, cassava starch, corn starch, wheat starch and the like as raw materials, taking copper salt as a catalyst, and carrying out silicon etherification reaction on the starch by means of a reaction kettle and ultrasonic waves to obtain starch ether;

step three, preparing a raw material mixture: pouring the gypsum powder in the step one, the starch ether, the cement, the fly ash and the water-retaining agent in the step two into a mixing device, and uniformly mixing;

step four, preparing plastering gypsum: and fully mixing the mixture and the aggregate in the third step again to obtain the plastering gypsum.

Preferably, the compounding device in step three include the organism, top one side of organism is provided with power unit, the top of organism and the position that is close to power unit are provided with the feeder hopper, just be located central position between the top of organism inner wall and the corresponding both sides in bottom and rotate and be connected with the live-rollers, the inner wall top that the organism was run through to the top of live-rollers and be connected with the power unit cooperation, the fixed surface of live-rollers is connected with agitating unit, agitating unit keeps away from the one end of live-rollers and is close to the position of organism inner wall and is provided with the wall scraping device, the inner wall of organism is provided with the bellying device.

Preferably, agitating unit is equipped with stirring tooth, bulb slide bar, reset spring, push rod, cambered surface lug, the one end of stirring tooth is connected with the fixed surface of live-rollers, bulb slide bar sliding connection is inside and be located the surface position, reset spring fixes between bulb slide bar tip and the inside corresponding both sides of stirring tooth, push rod sliding connection is in the inside of stirring tooth, the cambered surface lug sets up in the inside of stirring tooth and fixes the surface at the push rod.

Preferably, the inside of stirring tooth all sets up the slide opening with bulb slide bar, push rod looks adaptation, the inside of stirring tooth is provided with the appearance chamber with bulb slide bar, reset spring, push rod, cambered surface lug looks adaptation.

Preferably, the wall scraping device is provided with a scraping strip, an elastic piece and a magnetic strip, one end of the rotating roller is far away from the inner part of the scraping strip and the stirring device and is connected in a sliding mode, the elastic piece is arranged in the scraping strip and is located at the end position of the stirring device, and the magnetic strip is arranged in the scraping strip and is close to the elastic piece.

Preferably, the protrusion device is provided with an arc elastic plate and a magnetic knocking device, the end of the arc elastic plate is fixedly connected with the inner wall of the machine body, the arc elastic plate is uniformly distributed on the inner wall of the machine body, and the magnetic knocking device is arranged on the inner wall of the machine body and located on the position of the arc elastic plate.

Preferably, the magnetic knocking device is provided with an elastic wire, a counterweight ball and a magnetic ball, one end of the elastic wire is fixedly connected with the inner wall of the machine body, the counterweight ball is fixedly connected with one end, far away from the inner wall of the machine body, of the elastic wire, and the magnetic ball is arranged in the center of the interior of the counterweight ball.

(III) advantageous effects

The invention provides light plastering gypsum mortar and a preparation method thereof. The method has the following beneficial effects:

the lightweight plastering gypsum mortar and the preparation method thereof have the advantages that the gypsum mortar is good in thickening capacity, the influence of wet weather is reduced, the quality problems of hollowing, cracking, surface dusting or shedding are not prone to occurring, the service life of a building is prolonged, and the service performance is improved by preparing gypsum powder, preparing starch, preparing a raw material mixture and preparing plastering gypsum.

The light plastering gypsum mortar and the preparation method thereof utilize the rotation of the mortar body, the power mechanism, the feeding hopper, the rotating roller, the stirring device, the wall scraping device and the protrusion device, can quickly and uniformly stir materials by increasing the stirring direction, can self-clean equipment by connecting the structures with each other and combining the magnetic action, are not easy to cause the adhesion of the materials, are beneficial to cleaning work and improve the service performance.

(III), this light gypsum mortar that plasters and preparation method thereof, through stirring tooth, the bulb slide bar, reset spring, the push rod, the cambered surface lug, scrape the wall device, when the rotation of live-rollers, the stirring tooth also can rotate thereupon with scraping the wall device, when stirring the material, in time strike off the powder that glues on the inner wall of organism, in order to reduce to glue, simultaneously along with the rotation that does not stop, receive the press action of bellying device, through the promotion to scraping the wall device, and then apply thrust on the bulb slide bar through push rod and cambered surface lug, and utilize reset spring's elasticity, make the reciprocal extension and the shrink of bulb slide bar, and then increased the stirring direction, the stirring efficiency has been improved, the whole structure links together, no isolated structure exists, safety and reliability, multiple functions have been realized.

(IV), this light gypsum mortar that plasters and preparation method thereof, through scraping the strip, the elastic component, the magnetic stripe, the magnetic ball, set up magnetic stripe and magnetic ball into the homonymy magnetic pole, can produce repellent magnetic force, when scraping the strip and receiving the drive of stirring tooth and rotate, can in time strike off the sticky powder on the inner wall of organism, simultaneously with the contact of face elastic plate, it slides to scrape the strip and receive thrust, and in time exert thrust on the push rod, thereby help the bulb slide bar to be released, increase stirring direction, and the magnetic stripe can the magnetic ball meet when rotating, and produce repellent magnetic force, make the reciprocal strike of magnetic knocking device to the inner wall of arc elastic plate and organism, further drop sticky powder through the vibration, ingenious with the structure in the same place, not only favorable to use the compounding, and realized the function from the clearance.

The light plastering gypsum mortar comprises a cambered surface elastic plate, a magnetic knocking device, an elastic wire, a counterweight ball and a magnetic ball, wherein when the cambered surface elastic plate is pressed by a scraping strip, the cambered surface elastic plate is deformed by utilizing acting force and counterforce, and the counterweight ball is pushed outwards by utilizing repulsive magnetic force, so that the counterweight ball rotates and disappears by magnetic force, the counterweight ball performs reciprocating impact on the inner wall, vibration is generated, the elastic force provided by the elastic wire is combined, the vibration amplitude and frequency are increased, the rotation of the counterweight ball and the repulsive magnetic force are fully utilized, structural interrelation is utilized, sticky powder is timely removed by vibration, and self-cleaning work is realized.

Drawings

FIG. 1 is a flow chart of a preparation method of the lightweight plastering gypsum mortar of the invention;

FIG. 2 is a schematic view of the overall structure of a mixing device in the lightweight plastering gypsum mortar and the preparation method thereof of the present invention;

FIG. 3 is a schematic view of the internal structure of a mixing device in the lightweight plastering gypsum mortar and the preparation method thereof of the present invention;

FIG. 4 is a schematic structural view of a stirring device in the lightweight plastering gypsum mortar and the preparation method thereof of the present invention;

FIG. 5 is a schematic structural view of a wall scraping device in the lightweight plastering gypsum mortar and the preparation method thereof of the present invention;

FIG. 6 is a schematic cross-sectional structure of a body and a projection device in the lightweight plastering gypsum mortar and the preparation method thereof of the present invention;

FIG. 7 is a schematic structural view of a magnetic knocking device in the lightweight plastering gypsum mortar and the preparation method thereof.

In the figure: 1 machine body, 2 power mechanisms, 3 feed hoppers, 4 rotating rollers, 5 stirring devices, 6 wall scraping devices, 7 protrusion devices, 51 stirring teeth, 52 ball head sliding rods, 53 return springs, 54 push rods, 55 cambered surface convex blocks, 61 scraping strips, 62 elastic pieces, 63 magnetic stripes, 71 cambered surface elastic plates, 72 magnetic knocking devices, 721 elastic wires, 722 counterweight balls and 723 magnetic balls.

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.

The first embodiment is as follows:

referring to fig. 1-7, the present invention provides a technical solution: a preparation method of light plastering gypsum mortar comprises the following steps:

step one, preparing gypsum powder: grinding gypsum to obtain gypsum powder with uniform fineness;

step two, preparing starch ether: taking starch such as potato starch, cassava starch, corn starch, wheat starch and the like as raw materials, taking copper salt as a catalyst, and carrying out silicon etherification reaction on the starch by means of a reaction kettle and ultrasonic waves to obtain starch ether;

step three, preparing a raw material mixture: pouring the gypsum powder in the step one, the starch ether, the cement, the fly ash and the water-retaining agent in the step two into a mixing device, and uniformly mixing;

step four, preparing plastering gypsum: fully mixing the mixture and the aggregate in the third step again to obtain the plastering gypsum, so that the thickening capacity of the gypsum mortar is good, the influence of wet weather is reduced, the quality problems of hollowing, cracking, surface dusting or shedding are not easy to occur, the service life of the building is prolonged, and the service performance is improved.

The second embodiment:

the material mixing device comprises a machine body 1, a power mechanism 2 is arranged on one side of the top of the machine body 1, a feed hopper 3 is arranged at the top of the machine body 1 and close to the power mechanism 2, a rotating roller 4 is rotatably connected between the top and the bottom of the inner wall of the machine body 1 and positioned at the central position, the top end of the rotating roller 4 penetrates through the top of the inner wall of the machine body 1 and is matched and connected with the power mechanism 2, a stirring device 5 is fixedly connected to the surface of the rotating roller 4, a wall scraping device 6 is arranged at one end of the stirring device 5, far away from the rotating roller 4 and close to the inner wall of the machine body 1, a bulge device 7 is arranged on the inner wall of the machine body 1, the materials can be quickly and uniformly stirred by utilizing the rotation of the self, the stirring direction is increased, the structures are mutually connected and are combined with the magnetic action, the equipment is self-cleaned, the sticky condition of the materials is not easy to occur, and the cleaning work is facilitated, the service performance is improved.

The third embodiment is as follows:

the stirring device 5 is provided with a stirring tooth 51, a ball head slide rod 52, a return spring 53, a push rod 54 and an arc-shaped convex block 55, one end of the stirring tooth 51 is fixedly connected with the surface of the rotating roller 4, the ball head slide rod 52 is connected inside in a sliding manner and positioned at the surface position, the return spring 53 is fixed between the end part of the ball head slide rod 52 and the two corresponding sides inside the stirring tooth 51, the push rod 54 is connected inside the stirring tooth 51 in a sliding manner, the arc-shaped convex block 55 is arranged inside the stirring tooth 51 and fixed on the surface of the push rod 54, when the rotating roller 4 rotates, the stirring tooth 5 and the wall scraping device 6 also rotate along with the rotation, when materials are stirred, powder adhered on the inner wall of the machine body 1 is timely scraped so as to reduce adhesion, meanwhile, along with continuous rotation, under the pressing effect of the protrusion device 7, through the pushing of the wall scraping device 6, further thrust is applied to the ball head slide rod 52 through the push rod 54 and the arc-shaped convex block 55, and the ball head slide rod 52 is extended and contracted in a reciprocating manner by the elasticity of the return spring 53, so that the stirring direction is increased, and the stirring efficiency is improved.

The fourth embodiment is as follows:

the wall scraping device 6 is provided with a scraping strip 61, an elastic piece 62 and a magnetic strip 63, the inner part of the scraping strip 61 is connected with one end of the stirring device 5 far away from the rotating roller 4 in a sliding manner, the elastic piece 62 is arranged in the scraping strip 61 and is positioned at the end part of the stirring device 5, the magnetic strip 63 is arranged in the scraping strip 61 and is close to the elastic piece 62, when the scraping strip 61 is driven by the stirring teeth 51 to rotate, powder adhered to the inner wall of the machine body 1 can be scraped in time, while being in contact with the face elastic plate 71, the wiper strip 61 is pushed to slide, and applies a pushing force to the push rod 54 in time, thereby helping the ball head slide bar 52 to be pushed out, increasing the stirring direction, and the magnetic balls 723 to meet when the magnetic strips 63 rotate, and generates repulsive magnetic force, so that the magnetic knocking device 72 can knock the arc elastic plate 71 and the inner wall of the machine body 1 in a reciprocating manner, and sticky powder can be further dropped through vibration.

The fifth embodiment:

the protrusion device 7 is provided with an arc elastic plate 71 and a magnetic knocking device 72, the end of the arc elastic plate 71 is fixedly connected with the inner wall of the machine body 1, the arc elastic plate 71 is uniformly distributed on the inner wall of the machine body 1, and the magnetic knocking device 72 is arranged on the inner wall of the machine body 1 and located at the position of the arc elastic plate 71.

The magnetic knocking device 72 is provided with an elastic wire 721, a counterweight ball 722 and a magnetic ball 723, one end of the elastic wire 721 is fixedly connected with the inner wall of the machine body 1, the counterweight ball 722 is fixedly connected with one end of the elastic wire 721 far away from the inner wall of the machine body 1, the magnetic ball 723 is arranged in the center of the inner part of the counterweight ball 722, when the cambered surface elastic plate 71 is pressed by the scraping strip 61, the counterweight ball 722 is deformed by using acting force and reacting force, is pushed outwards by using repulsive magnetic force, rotates and disappears, so that the counterweight ball performs reciprocating impact on the inner wall, further generates vibration 722, combines with the elastic force provided by the elastic wire 721, increases vibration amplitude and frequency, fully utilizes self-rotation and repulsive magnetic force, and is mutually connected by using a structure, and timely removes sticky powder through vibration, thereby realizing self-cleaning work.

When the device is used, the whole device is placed at a designated position, the power mechanism 2 is used as power to drive the rotating roller 4, raw materials are poured into the feeding hopper 3, when the rotating roller 4 rotates, the stirring teeth 5 and the wall scraping device 6 also rotate along with the rotating roller, when materials are stirred, powder adhered to the inner wall of the machine body 1 is timely scraped to reduce adhesion, meanwhile, the pushing force of the protrusion device 7 is exerted on the ball head slide rod 52 through the push rod 54 and the cambered surface convex block 55 along with the continuous rotation, the elastic force of the reset spring 53 is utilized to enable the ball head slide rod 52 to extend and contract in a reciprocating mode, the stirring direction is further increased, the stirring efficiency is improved, when the scraping strip 61 is driven by the stirring teeth 51 to rotate, the powder adhered to the inner wall of the machine body 1 can be timely scraped, and meanwhile, when the powder is in contact with the surface elastic plate 71, the scraping strip 61 slides under the thrust and applies the thrust to the push rod 54 in time, thereby facilitating the pushing of the ball head slide rod 52, increasing the stirring direction, and the magnetic strip 63 meets the magnetic ball 723 during the rotation and generates repulsive magnetic force, so that the magnetic knocking device 72 performs reciprocating knocking on the cambered surface elastic plate 71 and the inner wall of the machine body 1, further dropping off sticky powder through vibration, and when the cambered surface elastic plate 71 is pressed by the scraping strip 61, the cambered surface elastic plate is deformed by using the acting force and the reaction force, and the counterweight ball 722 is pushed outwards by using the repulsive magnetic force, so that the counterweight ball 722 performs reciprocating impact on the inner wall to generate vibration, and the elastic force provided by the elastic wire 721 is combined to increase the vibration amplitude and frequency, the self rotation and the repulsive magnetic force are fully utilized, and the structure is utilized to be mutually linked, the sticky powder is removed in time through vibration, and self-cleaning work is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.