阅读说明：本技术 一种复合锆英粉及其制备方法 (Composite zircon powder and preparation method thereof ) 是由 刘溧 徐和良 李万景 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种复合锆英粉及其制备方法,属于领域,一种复合锆英粉及其制备方法,通过在在锆英粉中加入锆刚玉粉、高岭土粉、有机膨润土、碳酸钙,有效提高混合锆英粉的耐火性、抗渣性、抗侵蚀性和粘附性、增稠性、高温稳定性,以及有效提高混合锆英粉质的颜白细腻性等多种优越性能,而加设固态分散剂,有效提高粉体产品的分散性、流动性,有效提高其在铸造应用方面的效果,此外,通过在研磨机的底端设置可旋转的落料装置,易于将多种不同的原料研磨后置于不同的预存腔处,预存腔底端与搅拌器相连通,无需人工的手动装载,且在落料的过程中完成过筛操作,无需人工分部操作,简化操作流程,有效提高工作效率,降低工作力度。(The invention discloses a composite zircon powder and a preparation method thereof, belonging to the field, the composite zircon powder and the preparation method thereof are characterized in that zirconium corundum powder, kaolin powder, organic bentonite and calcium carbonate are added into the zircon powder, so that the fire resistance, slag resistance, erosion resistance, adhesiveness, thickening property and high-temperature stability of the mixed zircon powder are effectively improved, the color fineness and the like of the mixed zircon powder are effectively improved, solid dispersing agents are additionally arranged, the dispersibility and the fluidity of powder products are effectively improved, the effect of the powder products in the casting application aspect is effectively improved, in addition, a rotatable blanking device is arranged at the bottom end of a grinding machine, various raw materials are easily ground and then placed in different pre-storage cavities, the bottom end of the pre-storage cavity is communicated with a stirrer, manual loading is not needed, and the sieving operation is completed in the blanking process, the manual division operation is not needed, the operation flow is simplified, the working efficiency is effectively improved, and the working strength is reduced.)

1. The composite zircon powder and the preparation method thereof are characterized in that: the adhesive comprises the following components in parts by mass: 55-70 parts of zircon sand, 15-20 parts of zirconia alumina, 5-15 parts of kaolin, 10-10 parts of organic bentonite, 3-5 parts of calcium carbonate and 2-5 parts of solid dispersant, wherein the preparation method comprises the following steps: the method comprises the following steps:

s1, weighing the components according to the mixture ratio of the components;

s2, respectively placing the zircon sand, the zirconia alumina and the kaolin into a calcining furnace for calcining, and cooling the calcined zircon sand, the zirconia alumina and the kaolin for later use;

s3, respectively placing the cooled zircon sand, the cooled zirconia alumina and the cooled kaolin in the S2 into a grinding machine (1) and grinding the zircon sand, the cooled zirconia alumina and the cooled kaolin in batches by a grinding mechanism to obtain zircon powder, zirconia alumina powder and kaolin powder;

and S4, respectively placing the zircon powder, the zirconium corundum powder and the kaolin powder which are obtained by grinding in the step S3 into a stirrer (2), mixing and stirring through a stirring mechanism, simultaneously adding organic bentonite, calcium carbonate and a solid dispersing agent into the stirrer (2) in sequence, mixing and stirring for 1-2h, and uniformly stirring to obtain the mixed zircon powder.

2. The composite zircon powder and the preparation method thereof according to claim 1, wherein the zircon powder comprises: the calcination temperature of the zircon sand in the S2 is 400-800 ℃, the calcination temperature of the zircon corundum is 500-1000 ℃, and the calcination temperature of the kaolin is 800-1200 ℃.

3. The composite zircon powder and the preparation method thereof according to claim 1, wherein the zircon powder comprises: and (3) sieving the zircon powder and the zirconium corundum powder in the step (S3) by using a 320-mesh sieve.

4. The composite zircon powder and the preparation method thereof according to claim 1, wherein the zircon powder comprises: the organic bentonite is sieved by a 200-mesh sieve, the calcium carbonate is sieved by a 325-mesh sieve, and the solid dispersing agent is selected from a solid dispersing agent TH-270.

5. The composite zircon powder and the preparation method thereof according to claim 1, wherein the zircon powder comprises: agitator (2) top portion fixed mounting has pre-storage box (3), grind machine (1) fixed connection in pre-storage box (3) top, a plurality of chamber (301) of prestoring are seted up along its week direction to the inside of pre-storage box (3), and are a plurality of the bottom of prestoring chamber (301) all is linked together with the inside of agitator (2), and prestores chamber (301) bottom and install the solenoid valve, the bottom portion of grinding machine (1) rotates and installs and prestores chamber (301) assorted doffer with a plurality of.

6. The composite zircon powder and the preparation method thereof according to claim 5, wherein the zircon powder comprises the following components: grind mechanism including rotating a pair of grinding roller (4) of connecting in grinding machine (1) inside, the one end lateral wall of grinding machine (1) rotates and installs and grind roller (4) inner fixed connection's meshing gear (5) with a pair of, and a multiple toothing gear (5) meshing is connected, the other end lateral wall fixed mounting of grinding machine (1) has carries out driven rotating electrical machines to one of them grinding roller (4).

7. The composite zircon powder and the preparation method thereof according to claim 6, wherein the zircon powder comprises the following components: the blanking device is installed in blanking pipe (7) of grinding machine (1) bottom middle part including rotating, blanking pipe (7) are located the middle part below of a pair of grinding roller (4), and the bottom of blanking pipe (7) runs through and grinds machine (1) and fixedly connected with and prestore slope stand pipe (8) that chamber (301) position corresponds, the inside fixed mounting who grinds machine (1) has first motor (10), the drive end of first motor (10) runs through and grinds machine (1) and fixedly connected with first gear (9), fixed second gear (11) of being connected with first gear (9) meshing of having cup jointed on the bottom outer wall of blanking pipe (7), the bottom portion fixed mounting of slope stand pipe (8) has sieve mechanism (6).

8. The composite zircon powder and the preparation method thereof according to claim 7, wherein the zircon powder comprises: sieve mechanism (6) including fixed cover fixed plate (601) of locating slope stand pipe (8) bottom portion, the top fixedly connected with electric putter (602) of fixed plate (601), the flexible end of electric putter (602) runs through fixed plate (601) and threaded connection has sieve (603), inlay on crossing sieve (603) and establish and install sieve (604) of crossing that correspond with slope stand pipe (8) bottom portion position.

9. The composite zircon powder and the preparation method thereof according to claim 8, wherein the zircon powder comprises: fixed mounting has annular injection pipe (14) on the top inner wall of agitator (2), the bottom distribution of annular injection pipe (14) has a plurality of nozzles, fixedly connected with solid-state dispersant feeding case (16) on the lateral wall of prestore case (3), the bottom portion fixed connection of inlet pipe (15) and solid-state dispersant feeding case (16) is passed through to one side upper end of annular injection pipe (14), air-blower (17) that fixedly connected with is located the below on the lateral wall of agitator (2) frame, air-blower (17) are linked together through jet-propelled pipe and solid-state dispersant feeding case (16) inside.

10. The composite zircon powder and the preparation method thereof according to claim 9, wherein the zircon powder comprises: the stirring mechanism comprises a second motor (12) fixedly installed in the middle of the bottom end of the pre-storage box (3), the driving end of the second motor (12) penetrates through the pre-storage box (3) and is fixedly connected with a stirring rod (13), and the stirring rod (13) is located inside the stirrer (2).

Technical Field

The invention relates to the technical field of zircon powder preparation, and particularly relates to composite zircon powder and a preparation method thereof.

Background

Zircon powder is used as an indispensable additive in the field of material science, the application range is gradually expanded, the application amount is gradually increased, and the zircon powder can be widely applied to daily production. Zircon powder can be used in investment casting for mold coatings and ceramic cores, in the frit industry, in the glass industry, for whitening, in friction materials for abrasion resistance, and in many chemical industries for specialty applications including cosmetics, instrument corrosion protection, leather making, fibers (for making flame retardant fibers).

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide composite zircon powder and a preparation method thereof.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The composite zircon powder comprises the following components in parts by mass: 55-70 parts of zircon sand, 15-20 parts of zirconia alumina, 5-15 parts of kaolin, 10-10 parts of organic bentonite, 3-5 parts of calcium carbonate and 2-5 parts of solid dispersant, wherein the preparation method comprises the following steps: the method comprises the following steps:

s1, weighing the components according to the mixture ratio of the components;

s2, respectively placing the zircon sand, the zirconia alumina and the kaolin into a calcining furnace for calcining, and cooling the calcined zircon sand, the zirconia alumina and the kaolin for later use;

s3, respectively placing the cooled zircon sand, the cooled zirconia alumina and the cooled kaolin in a grinding machine, and grinding the zircon sand, the cooled zirconia alumina and the cooled kaolin in batches by a grinding mechanism to obtain zircon powder, zirconia alumina powder and kaolin powder;

and S4, respectively placing the zircon powder, the zirconium corundum powder and the kaolin powder which are obtained by grinding in the step S3 into a stirrer, mixing and stirring through a stirring mechanism, simultaneously sequentially adding organic bentonite, calcium carbonate and a solid dispersing agent into the stirrer, mixing and stirring for 1-2 hours, and uniformly stirring to obtain the mixed zircon powder.

Further, the calcination temperature of the zircon sand in S2 is 400-800 ℃, the calcination temperature of the zircon corundum is 500-1000 ℃, the calcination temperature of the kaolin is 800-1200 ℃, the whiteness of the raw materials is enhanced after calcination, and the higher the calcination whiteness is, the better the quality is.

Further, the zircon powder, the zirconium corundum powder and the kaolin powder in the step S3 are all sieved by a 320-mesh sieve.

Further, the organic bentonite is sieved by a 200-mesh sieve, the calcium carbonate is sieved by a 325-mesh sieve, and the solid dispersing agent is selected from a solid dispersing agent TH-270.

Further, agitator top portion fixed mounting has the case of prestoring, grind machine fixed connection prestoring case top, the inside of prestoring case has seted up a plurality of chambeies along its circumferencial direction, a plurality of prestoring chamber's bottom all is linked together with the inside of agitator, and prestore the chamber bottom and install the solenoid valve, the bottom portion of grinding machine rotates and installs the doffer with a plurality of chamber assorted of prestoring, and each raw materials flows through the doffer and falls into to prestoring intracavity after fully grinding through grinding the machine, and a plurality of prestoring chamber ring sets up, can rotate along its circumferencial direction through the doffer, when grinding different raw materials, rotate the bottom of doffer to prestoring chamber rather than corresponding, alright realize carrying out interim loading to different raw materials powder, after multiple raw materials grind the completion, open the solenoid valve of prestoring chamber bottom, alright realize that multiple raw materials evenly fall into the agitator, the operations of loading the raw material and introducing the raw material into the stirrer are not manually performed.

Furthermore, grind the mechanism including rotating and connecting in the inside a pair of grinding roller of grinding machine, the meshing gear of installing with the inner fixed connection of a pair of grinding roller is rotated to the one end lateral wall of grinding machine, and a multiple meshing gear meshing is connected, the other end lateral wall fixed mounting of grinding machine carries out the rotating electrical machines that drives one of them grinding roller.

Further, doffer installs the blanking pipe in grinding machine bottom middle part including rotating, the blanking pipe is located the middle part below of a pair of grinding roller, and the bottom of blanking pipe runs through the slope stand pipe that grinds machine and fixedly connected with and prestore the chamber position and correspond, the inside fixed mounting who grinds the machine has first motor, the drive end of first motor runs through the first gear of grinding machine and fixedly connected with, the fixed second gear that is connected with first gear engagement that has cup jointed on the bottom outer wall of blanking pipe, the bottom portion fixed mounting of slope stand pipe has the mechanism of sieving, and the installation of doffer bottom is sieved the mechanism, realizes sieving the back to the raw materials after grinding again leading-in to prestore the intracavity, need not the manual work and sieves.

Further, the fixed plate of slope stand pipe bottom end portion is located including fixed cover to the mechanism that sieves, the top fixedly connected with electric putter of fixed plate, electric putter's flexible end runs through fixed plate and threaded connection has the sieve, cross and inlay on the sieve and establish the screen cloth of crossing that installs and slope stand pipe bottom end position corresponds, through setting up the mechanism that sieves at slope stand pipe bottom end portion, after the raw materials grinds, through the slope stand pipe leading-in to prestoring the chamber time, the raw materials after the grinding at first fall on the screen cloth of crossing the sieve, cross the sieve and can vibrate from top to bottom along with electric putter to can realize sieving the processing to the raw materials that fall.

Further, an annular injection pipe is fixedly installed on the inner wall of the top end of the stirrer, a plurality of nozzles are distributed at the bottom end of the annular injection pipe, a solid dispersant feeding box is fixedly connected to the outer side wall of the pre-storage box, the upper end of one side of the annular injection pipe is fixedly connected with the bottom end of the solid dispersant feeding box through a feeding pipe, a blower below the blower is fixedly connected to the outer side wall of the stirrer frame, the blower is communicated with the inside of the solid dispersant feeding box through an air injection pipe, when the solid dispersant is added, the solid dispersant can be introduced from the top end of the solid dispersant feeding box, the blower is started to inject air into the solid dispersant feeding box through the air injection pipe, the solid dispersant mechanism flows into the annular injection pipe through the action of air flow, and finally is injected into the stirrer through the plurality of nozzles at the bottom end of the annular injection, the solid dispersant and each raw material in the stirrer are fully mixed.

Further, rabbling mechanism includes the second motor of fixed mounting in the middle part of preliminary deposit case bottom, the drive end of second motor runs through preliminary deposit case and fixedly connected with puddler, the puddler is located the inside of agitator.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through adding zirconium corundum powder in the zircon powder, kaolin powder, organobentonite, calcium carbonate, effectively improve the multiple superior properties such as the refractability of mixed zircon powder, slag resistance, erosion resistance and adhesion, the thickening nature, high temperature stability, and effectively improve the white fine and smooth nature of mixed zircon powder, and add and establish solid-state dispersant, effectively improve the dispersibility of powder product, the mobility, effectively improve its effect in the aspect of casting application, in addition, set up rotatable doffer through the bottom at the machine of grinding, easily arrange the different chamber department of prestoring in after grinding with multiple different raw materials, prestoring chamber bottom is linked together with the agitator, need not artifical manual loading, and accomplish the operation of sieving at the in-process of blanking, simplify the operation flow.

(2) The fixed plate of slope stand pipe end portion is located including fixed cover to the mechanism that sieves, the top fixedly connected with electric putter of fixed plate, electric putter's flexible end runs through fixed plate and threaded connection has the sieve, it establishes the screen cloth of crossing of installing with slope stand pipe end position correspondence to cross to inlay on the sieve, through setting up the mechanism that sieves at slope stand pipe end portion, after the raw materials grinds, it is leading-in to prestoring the chamber through the slope stand pipe when, the raw materials after the grinding at first fall on the screen cloth of crossing the sieve, cross the sieve and can vibrate from top to bottom along with electric putter, thereby can realize sieving the processing to the raw materials that fall.

(3) The top end of the stirrer is provided with the annular injection pipe, and the solid dispersing agent is effectively sprayed into the stirrer from a plurality of nozzles at the bottom end of the annular injection pipe through the cooperation of the solid dispersing agent feeding box and the air blower, so that the solid dispersing agent and all raw materials in the stirrer are fully mixed.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a perspective view of the grinder and agitator combination of the present invention;

FIG. 3 is an internal cross-sectional view of the grinder and agitator combination of the present invention;

FIG. 4 is a perspective view of the blanking device of the present invention;

FIG. 5 is a perspective view of the junction of the blanking device and the screening mechanism of the present invention;

fig. 6 is a perspective view of the mixer of the present invention in combination with an annular injection tube.

The reference numbers in the figures illustrate:

1 grinding machine, 2 stirring machines, 3 pre-storage boxes, 301 pre-storage cavities, 4 grinding rollers, 5 meshed gears, 6 sieving mechanisms, 601 fixing plates, 602 electric push rods, 603 sieving plates, 604 sieving screens, 7 blanking pipes, 8 inclined guide pipes, 9 first gears, 10 first motors, 11 second gears, 12 second motors, 13 stirring rods, 14 annular spraying pipes, 15 feeding pipes, 16 solid dispersing agent feeding boxes and 17 air blowers.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.