CN219190594U

CN219190594U - Ceramic microbead forming equipment

Info

Publication number: CN219190594U
Application number: CN202223404138.7U
Authority: CN
Inventors: 丁国强; 彭朝阳; 李锦章; 刘锋
Original assignee: Xiangtan Shunluo Electronic Co ltd
Current assignee: Xiangtan Shunluo Electronic Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-16
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to the technical field of ceramic microbead preparation, and discloses ceramic microbead forming equipment which comprises a slurry feeding device for storing slurry, a liquid drop spray head connected with the slurry feeding device to enable the slurry to form liquid microbeads, an oil mist spray head for spraying oil mist to the liquid microbeads to obtain spherical liquid drops, an electrified tray arranged at the outlet side of the oil mist spray head to enable the spherical liquid drops to be electrified and a solidification forming device for solidifying the spherical liquid drops. The ceramic microsphere forming equipment in the embodiment can be beneficial to preparing ceramic microspheres with better uniformity.

Description

Ceramic microbead forming equipment

Technical Field

The utility model relates to the technical field of ceramic microbead preparation, in particular to ceramic microbead forming equipment.

Background

The prior ceramic microbead forming process comprises the steps of firstly preparing slurry during production, then spraying the slurry from a spray head to form liquid microbeads, enabling the liquid microbeads to fall into a curing forming device along a set direction, forming solid spherical objects, and finally drying, discharging glue, sintering, polishing and other subsequent procedures on the solid spherical objects to obtain the ceramic microbeads with uniform, compact, high-strength and wear resistance.

In the current production process, different liquid microbeads may attract each other in the falling process of the formed liquid microbeads along the set direction, so as to form liquid microbeads with larger particle size, thereby resulting in poor uniformity of the prepared ceramic microbeads.

In view of this, it is desirable to design a ceramic bead molding apparatus so that the uniformity of the ceramic beads produced is better.

Disclosure of Invention

The utility model aims to provide ceramic microbead forming equipment so as to ensure that the prepared ceramic microbeads have better uniformity.

To achieve the purpose, the utility model adopts the following technical scheme:

the ceramic microbead forming equipment comprises a slurry feeding device for storing slurry, a liquid drop spray head connected with the slurry feeding device to enable the slurry to form liquid microbeads, an oil mist spray head for spraying oil mist to the liquid microbeads to obtain spherical liquid drops, an electrified tray arranged on the outlet side of the oil mist spray head to enable the spherical liquid drops to be electrified, and a curing forming device for curing the spherical liquid drops.

Optionally, the ceramic microbead forming apparatus further comprises a first air supply pipe for supplying air to the droplet ejection head and a pressure gauge arranged on the droplet ejection head to detect the internal pressure of the droplet ejection head; the first air supply pipe is provided with a pulse control valve.

Optionally, the oil mist sprayer is connected with an oil storage tank through a connecting pipeline, an outlet of the oil storage tank is provided with an atomization device, the atomization device is connected with a second air supply pipe, and an outlet of the atomization device is connected with the connecting pipeline;

the oil mist spray head is provided with one end of the connecting pipeline far away from the atomizing device.

Optionally, the outlet of the oil mist spray head is in a ring shape, and the outlet of the oil mist spray head is arranged around the liquid drop spray head.

Optionally, the curing and forming device comprises a first curing pipeline and a second curing pipeline communicated with the first curing pipeline;

the first curing pipeline is provided with a first heating device, and the periphery of the second curing pipeline is provided with a second heating device for heating the second curing pipeline.

Optionally, the first curing pipeline is vertically arranged, and the second curing pipeline is horizontally arranged;

and a filter screen for collecting the solidified ceramic microbeads is further arranged at the pipeline outlet of the second solidification pipeline.

Optionally, an oil phase collecting tank is arranged at one side of the bottom of the filter screen.

Optionally, the droplet ejection head faces an inlet end of the first solidification conduit.

Optionally, the feed slurry device comprises a slurry storage tank and a liquid outlet pipe connected with the slurry storage tank, wherein the liquid outlet pipe is connected with the liquid drop spray head, and a metering pump is arranged on the liquid outlet pipe.

Optionally, the second gas supply pipe is connected with a nitrogen supply device.

Compared with the prior art, the utility model has the following beneficial effects:

in this embodiment, the slurry feeding device supplies slurry, the slurry forms liquid microbeads through the droplet spray head, the oil mist sprayed by the oil mist spray head enables the liquid microbeads to form spherical droplets with better roundness, charges are attached to the spherical droplets when the spherical droplets pass through the electrified tray, charges carried by the spherical droplets are the same, the spherical droplets are mutually repelled due to repulsion of the spherical droplets caused by mutual repulsion of the spherical droplets, namely, the spherical droplets are difficult to fuse with each other, so that the uniformity of the solidified and formed solid ceramic balls is better, and the uniformity of the ceramic microbeads prepared is better.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are therefore not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, which would otherwise be used by those skilled in the art, would not have the essential significance of the present disclosure, would still fall within the scope of the present disclosure without affecting the efficacy or achievement of the present disclosure.

FIG. 1 is a schematic diagram of an installation structure of a ceramic bead molding apparatus according to an embodiment of the present utility model;

fig. 2 is an enlarged schematic view of the position a in fig. 1.

Illustration of: 1. a slurry supply device; 101. a slurry storage tank; 102. a metering pump; 103. a liquid outlet pipe; 2. a droplet ejection head; 3. an oil mist nozzle; 4. a charged tray; 5. a curing and forming device; 51. a first curing tunnel; 52. a second curing tunnel; 6. a first gas supply pipe; 7. a pressure gauge; 8. a pulse control valve; 9. an oil storage tank; 10. an atomizing device; 11. a second gas supply pipe; 12. a filter screen; 13. an oil phase collection tank.

Detailed Description

In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

The embodiment of the utility model provides ceramic microsphere forming equipment, which can be beneficial to preparing ceramic microspheres with better uniformity.

Referring to fig. 1 to 2, the ceramic bead molding apparatus includes a slurry supply device 1 for storing slurry, a droplet discharge head 2 connected to the slurry supply device 1 to form the slurry into liquid beads, an oil mist discharge head 3 for discharging oil mist to the liquid beads to obtain spherical droplets, a charged tray 4 provided at an outlet side of the oil mist discharge head 3 to charge the spherical droplets, and a curing molding device 5 for curing the spherical droplets.

In this embodiment, the slurry feeding device 1 supplies slurry, the slurry forms liquid microbeads through the droplet spray heads 2, the oil mist sprayed by the oil mist spray heads 3 causes the liquid microbeads to form spherical droplets with better roundness, the spherical droplets are charged when passing through the charged tray 4, and the charges carried by the spherical droplets are the same, and the spherical droplets are mutually repelled due to the repulsion of the same charges, namely, the spherical droplets are difficult to fuse with each other, so that the uniformity of the solidified and formed solid ceramic balls is better, namely, the uniformity of the prepared ceramic microbeads is better.

The slurry production is of the prior art, and the slurry supply device 1 is used only to supply slurry to the droplet discharge head 2. The slurry is formed by ball milling ceramic powder, a cross-linking agent, an initiator and a catalyst.

After the oil mist is sprayed to the liquid microbeads, an oil film layer is formed on the liquid microbeads, so that spherical liquid drops are obtained.

Optionally, the ceramic microbead forming apparatus further includes a first air supply pipe 6 for supplying air to the droplet discharge head 2 and a pressure gauge 7 provided on the droplet discharge head 2 to detect the pressure inside the droplet discharge head 2; the first air supply pipe 6 is provided with a pulse control valve 8.

The speed adjustment pulse control valve may be prepared as needed to adjust the speed at which the droplet discharge head 2 discharges the droplets.

Optionally, the oil mist head 3 is connected with an oil reservoir 9 through a connecting pipe, the outlet of the oil reservoir 9 is provided with an atomizer 10, and the atomizer 10 forms oil mist due to atomized oil. The atomizing device 10 is connected with a second air supply pipe 11, and an outlet of the atomizing device 10 is connected with a connecting pipeline; the second air supply pipe 11 forms an oil mist by the atomizing device 10. The atomizing device 10 is of the prior art and therefore the specific principle of atomization will not be described in detail. The oil mist head 3 is provided with an end of the connecting pipe remote from the atomizing device 10.

Optionally, the outlet of the oil mist sprayer 3 is in a ring shape, and the outlet of the oil mist sprayer 3 is arranged around the droplet sprayer 2, so that the oil mist better coats the liquid microbeads, namely, the liquid microbeads are in contact with the oil mist after being sprayed out, and the liquid microbeads are completely coated by the oil mist.

Alternatively, the curing molding device 5 includes a first curing duct 51 and a second curing duct 52 communicating with the first curing duct 51; the first curing duct 51 is provided with a first heating means, and the second curing duct 52 is provided at the outer periphery thereof with a second heating means to heat the second curing duct 52. An oil phase collecting tank 13 is arranged at one side of the bottom of the filter screen 12.

The first curing pipeline 51 is vertically arranged, and the second curing pipeline 52 is horizontally arranged; the pipe outlet of the second curing pipe 52 is also provided with a screen 12 for collecting the cured ceramic microbeads.

It should be noted that, the liquid microbeads coated with the oil film start to be pre-cured when entering the first curing pipeline 51, i.e. the crosslinking agent inside the slurry starts to be solidified, and the formed solid ceramic balls have a certain strength. The solid ceramic balls then pass through a second curing tube 52 and are fully cured.

The solidified and formed solid ceramic balls are collected by a filter screen 12, and then subjected to the steps of cleaning, drying, glue discharging, sintering, polishing, screening and packaging to obtain the required ceramic microbeads. The practical production shows that zirconia microbeads with the particle size of 0.3mm can be produced, and the density of the zirconia microbeads is 6.08g/cm < 3 >.

Alternatively, the droplet ejection head 2 is directed towards the inlet end of the first solidification conduit 51. The liquid microbeads are shaped by the droplet ejection head 2 and then fall into the inlet end of the first solidification pipe 51. The inlet end of the first curing duct 51 is also provided with an exhaust port. Here, it is necessary to avoid the droplet discharge head 2 from being discharged along the exhaust port.

Alternatively, the slurry feeding device 1 comprises a slurry storage tank 101 and a liquid outlet pipe 103 connected with the slurry storage tank 101, the liquid outlet pipe 103 is connected with the liquid drop spray head 2, and a metering pump 102 is arranged on the liquid outlet pipe 103. Specifically, a set amount of slurry is output by metering pump 102.

Alternatively, the second gas supply pipe 11 is connected to a nitrogen supply device. I.e. the oil forms an oil mist under the impact of nitrogen. The nitrogen can not react with the slurry, thereby ensuring the production quality.

In the single droplet ejection head 2 of this embodiment, the maximum productivity can reach 60kg/h when producing ceramic microbeads of 0.3 mm; if a single device is provided with 50 sets of nozzles, the productivity can reach 3t/h. The ceramic microbeads prepared by the device in the embodiment can control the grain diameter deviation within 10 microns.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The ceramic microsphere forming equipment is characterized by comprising a slurry feeding device (1) for storing slurry, a liquid drop spray head (2) connected with the slurry feeding device (1) so as to enable the slurry to form liquid microspheres, an oil mist spray head (3) for spraying oil mist to the liquid microspheres to obtain spherical liquid drops, an electrified tray (4) arranged on the outlet side of the oil mist spray head (3) so as to enable the spherical liquid drops to be electrified, and a solidification forming device (5) for solidifying the spherical liquid drops.

2. Ceramic microbead forming apparatus according to claim 1, further comprising a first air supply pipe (6) for supplying air to the droplet ejection head (2) and a pressure gauge (7) provided on the droplet ejection head (2) to detect the pressure inside the droplet ejection head (2); the first air supply pipe (6) is provided with a pulse control valve (8).

3. Ceramic microbead forming apparatus according to claim 1, characterized in that the oil mist spray head (3) is connected with an oil storage tank (9) through a connecting pipe, an outlet of the oil storage tank (9) is provided with an atomizing device (10), the atomizing device (10) is connected with a second air supply pipe (11), and an outlet of the atomizing device (10) is connected with the connecting pipe;

the oil mist spray head (3) is provided with one end of the connecting pipeline far away from the atomizing device (10).

4. Ceramic microbead shaping apparatus according to claim 1, characterized in that the outlet of the oil mist nozzle (3) is ring-shaped and the outlet of the oil mist nozzle (3) is arranged around the droplet nozzle (2).

5. Ceramic bead shaping device according to claim 1, characterized in that the curing shaping means (5) comprise a first curing duct (51) and a second curing duct (52) communicating with the first curing duct (51);

the first curing pipeline (51) is provided with a first heating device, and the periphery of the second curing pipeline (52) is provided with a second heating device for heating the second curing pipeline (52).

6. Ceramic microbead shaping apparatus according to claim 5, characterized in that the first curing duct (51) is arranged vertically and the second curing duct (52) is arranged horizontally;

the pipe outlet of the second solidification pipe (52) is also provided with a filter screen (12) for collecting solidified ceramic microbeads.

7. Ceramic microbead shaping apparatus according to claim 6, characterized in that the bottom side of the filter screen (12) is provided with an oil phase collecting tank (13).

8. Ceramic microbead shaping apparatus according to claim 5, characterized in that the droplet ejection head (2) is directed towards the inlet end of the first solidification duct (51).

9. Ceramic microbead shaping apparatus according to claim 5, characterized in that the slurry supply device (1) comprises a slurry storage tank (101), a liquid outlet pipe (103) connected to the slurry storage tank (101), the liquid outlet pipe (103) is connected to the droplet ejection head (2), and a metering pump (102) is arranged on the liquid outlet pipe (103).

10. A ceramic microbead forming apparatus according to claim 3, characterized in that the second gas supply pipe (11) is connected with nitrogen supply means.