CN213971728U - Alumina hollow ball blowing forming device - Google Patents
Alumina hollow ball blowing forming device Download PDFInfo
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- CN213971728U CN213971728U CN202022658495.0U CN202022658495U CN213971728U CN 213971728 U CN213971728 U CN 213971728U CN 202022658495 U CN202022658495 U CN 202022658495U CN 213971728 U CN213971728 U CN 213971728U
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- cooling box
- alumina hollow
- air compressor
- hollow ball
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Abstract
The utility model discloses an alumina hollow ball blowing forming device, which relates to the technical field of alumina hollow ball production equipment and comprises a cooling box, an air compressor and a nozzle, wherein a bracket is arranged below the cooling box, a flow port is arranged at the top of the cooling box, the nozzle is arranged below the flow port and is communicated with the gas outlet of the air compressor, a collecting box is arranged at one side of the bottom of the cooling box, which is far away from the nozzle, a gas outlet is arranged at the top of the cooling box, a secondary nozzle is arranged between the nozzle and the collecting box, the spraying direction of the secondary nozzle is vertically upward, the secondary nozzle is communicated with the gas outlet of the air compressor, the utility model is used for the blowing forming of the alumina hollow ball, the motion track of liquid drops is more dispersed by arranging the secondary nozzle, and the probability of collision of the liquid drops is reduced, thereby reducing the damage of the hollow ball and improving the yield of the hollow ball.
Description
Technical Field
The utility model relates to an alumina clean shot production facility technical field specifically is an alumina clean shot jetting forming device.
Background
The alumina hollow sphere is a novel high-temperature heat insulation material, and the crystal form is a-Al2O3 microcrystal. The alumina hollow ball is used as main body, and can be made into various products, its maximum service temperature is 1800 deg.C, and its mechanical strength is high, and is several times that of general light product, and its volume density is only one-half of that of corundum product.
The preparation method of alumina hollow ball includes ball-rolling loss method and melt-blowing method, and the ball-rolling method is characterized by that firstly, the organic resin or low-melting material is made into core pill, and placed in a rotating disk, then the moist alumina fine powder containing a certain water content is spread in the disk and adhered on the core pill to form a shell, as if a layer of sugar coating is wrapped on the exterior of said core pill, then said ball pill is placed at high temperature and fired, in which the core pill is lost and volatilized, and the shell is sintered to form the hollow ball.
The melting blowing method adopts industrial Al2O3The method is characterized in that the raw materials are directly melted in an electric arc furnace, the furnace body is inclined when the raw materials are completely melted, the melted raw materials flow into a flow port from a discharge chute, meanwhile, an air pressure valve is opened, liquid flow is blown away by compressed air to form liquid drops, the liquid drops are rapidly solidified in the air due to the action of melt viscosity and surface tension in the flight process to form a shell-shaped ball body, the shell-shaped ball body is collected in a collection chamber, and then a qualified finished product is obtained through sorting, screening or rinsing, however, the liquid drops are very large in quantity and consistent in flight direction, and the liquid drops collide with each other in the solidification process, so that a part of solidified hollow balls are broken, the yield of the hollow balls is reduced, the breakage rate of the conventional hollow balls can reach 10%, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides an alumina hollow ball jetting forming device, the breakage rate that can effectively reduce the hollow ball to solve the problem that the hollow ball yields is low among the prior art.
The utility model adopts the technical scheme as follows:
the utility model provides an alumina hollow ball jetting forming device, includes cooler bin, air compressor, nozzle, the cooler bin below is equipped with the support, the top of cooler bin is equipped with the mouth that flows, it is equipped with the nozzle to flow mouthful below, the nozzle with air compressor's gas outlet intercommunication, keep away from the cooler bin bottom one side of nozzle is equipped with the collecting box, the collecting box with the cooler bin intercommunication, the top of cooler bin still is equipped with the gas vent, be equipped with the second grade nozzle between nozzle, the collecting box, the injection direction of second grade nozzle is vertical upwards, the second grade nozzle with air compressor's gas outlet intercommunication.
Furthermore, the secondary nozzle is composed of a nozzle base and a plurality of nozzles installed on the nozzle base, the lower end of the nozzle base is communicated with an air outlet of the air compressor through a pressure-resistant pipeline, and the nozzle base divides compressed air into a plurality of strands and sprays the compressed air out through the nozzles.
Furthermore, the spray heads are uniformly arranged on the upper surface of the spray head base, and the connecting line of the spray heads positioned at the edge of the spray head base is a regular polygon.
Furthermore, a plurality of partition plates are arranged in the collecting box, the collecting box is divided into mutually independent compartments by the partition plates, and discharge ports are formed in the side faces of the compartments.
Further, the baffle is according to keeping away from the direction equidistance of second grade nozzle is arranged, the baffle comprises swash plate and riser below the swash plate, the swash plate with the contained angle of riser is greater than 90 and is less than 180.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
(1) through setting up the second grade nozzle, the liquid drop that will just form upwards blows, because the diameter of liquid drop is not of uniform size, and the liquid drop, the ascending effort that the liquid drop that the diameter is little received is little, and the ascending effort that the liquid drop that the diameter is big received is big, make the liquid drop of different diameters size obtain the initial velocity of different vertical directions behind the second grade nozzle, thereby make the movement track of liquid drop become more dispersed, the probability that the liquid drop collided each other has been reduced, thereby the damage of clean shot has been reduced, the yields of clean shot has been improved.
(2) Through the arrangement of the plurality of uniformly arranged spray heads, the air flow sprayed by the secondary spray nozzle can cover all the liquid drops as much as possible, the air flow is distributed more uniformly, and the liquid drops with the same size and weight are ensured to be subjected to the same force.
(3) Through setting up a plurality of baffles, separate into the collecting box with the compartment of second grade nozzle different distances, make the clean shot of different diameters fall into different compartments, realize carrying out preliminary screening to the clean shot.
Drawings
Fig. 1 is a front view structure diagram of the present invention.
FIG. 2 is a perspective view of the cooling box and collection box.
Fig. 3 is a front view structural view of the head base.
FIG. 4 is a top view of a showerhead base.
The labels in the figure are: 1-cooling box, 2-air compressor, 3-nozzle, 4-bracket, 5-flow port, 6-collecting box, 7-exhaust port, 8-secondary nozzle, 9-nozzle base, 10-nozzle, 11-clapboard and 12-discharge port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
An alumina hollow ball injection molding device comprises a cooling box 1, an air compressor 2 and a nozzle 3, wherein the air compressor is a VW-15/7 type oilless air compressor, the exhaust pressure is 1MPa, and the exhaust volume is 15m3Min, a support 4 is arranged below the cooling box 1, a flow port 5 is arranged at the top of the cooling box 1 and used for injecting molten aluminum oxide, a nozzle 3 is arranged below the flow port 5, the injection direction of the nozzle 3 is inclined upwards, the nozzle 3 is communicated with an air outlet of the air compressor 2 and used for spraying compressed air, a collecting box 6 is arranged on one side of the bottom of the cooling box 1, which is far away from the nozzle 3, the collecting box 6 is communicated with the cooling box 1 and used for collecting cooling formed airThe aluminium oxide clean shot, the top of cooler bin 1 is equipped with gas vent 7 for the gas in the cooler bin 1 of discharging is equipped with second grade nozzle 8 between nozzle 3, the collecting box 6, and second grade nozzle 8's the vertical upwards of injection direction, second grade nozzle 8 and air compressor 2's gas outlet intercommunication.
Be equipped with 3 baffles 11 in the collecting box 6, baffle 11 separates collecting box 6 for 4 mutually independent compartments, and baffle 11 arranges according to the direction equidistance of keeping away from second grade nozzle 8, and baffle 11 comprises swash plate and the riser of swash plate below, and the swash plate is 135 with the contained angle of riser, and the side of compartment is equipped with discharge gate 12 for emit the alumina hollow ball in the collecting box 6.
And a pressure reducing valve and a pressure gauge are arranged on connecting pipelines of the nozzle 3 and the secondary nozzle 8 and the air compressor 2 and are used for controlling the pressure of the sprayed compressed air.
The working principle is as follows: when the device is used, the opening of the pressure reducing valve is adjusted firstly, the ejection pressure of the nozzle 3 is 0.7MPa, the ejection pressure of the secondary nozzle 8 is 0.5MPa, then molten alumina is injected through the flow opening 5, under the action of compressed air ejected from the nozzle 3, molten alumina liquid flow is dispersed into a large number of liquid drops and flies upwards along the airflow direction of the compressed air, then the liquid drops pass through the upper part of the secondary nozzle 8 and are acted by the upward airflow, the upward acting force exerted on the liquid drops with different diameters is different, the distribution of the liquid drops in the vertical direction is more dispersed, the flying time in the cooling box is long due to the higher flying of the liquid drops with the larger diameters, and the initial speed of all the liquid drops in the horizontal direction is almost the same, so the flying distance of the liquid drops with the larger diameters is farther, the moving paths of the liquid drops with the different diameters are more dispersed, and the collision probability of hollow spheres in the cooling box is reduced, improve the yields of clean shot, in addition, because the clean shot of diameter difference is different at the horizontal direction flight distance, the great clean shot of diameter difference can fall into different compartments to realize the screening of the clean shot of different diameter scopes.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. An alumina hollow ball injection molding device comprises a cooling box (1), an air compressor (2) and a nozzle (3), a bracket (4) is arranged below the cooling box (1), a flow port (5) is arranged at the top of the cooling box (1), the nozzle (3) is arranged below the flow port (5), the nozzle (3) is communicated with an air outlet of the air compressor (2), a collecting box (6) is arranged on one side of the bottom of the cooling box (1) far away from the nozzle (3), the collecting box (6) is communicated with the cooling box (1), an exhaust port (7) is arranged at the top of the cooling box (1), it is characterized in that a secondary nozzle (8) is arranged between the nozzle (3) and the collecting box (6), the spraying direction of the secondary nozzle (8) is vertical upwards, and the secondary nozzle (8) is communicated with the air outlet of the air compressor (2).
2. The alumina hollow sphere blowing forming device according to claim 1, wherein the secondary nozzle (8) is composed of a nozzle base (9) and a plurality of nozzles (10) installed on the nozzle base (9), the lower end of the nozzle base (9) is communicated with the air outlet of the air compressor (2) through a pressure-resistant pipeline, and the nozzle base (9) divides compressed air into a plurality of strands and sprays the compressed air through the nozzles (10).
3. The alumina hollow sphere blowing forming device as claimed in claim 2, wherein the nozzles (10) are uniformly arranged on the upper surface of the nozzle base (9), and the connecting line of the nozzles (10) at the edge of the nozzle base (9) is a regular polygon.
4. The alumina hollow sphere blowing forming device as claimed in claim 2, wherein a plurality of partition plates (11) are arranged in the collection box (6), the partition plates (11) divide the collection box (6) into mutually independent compartments, and discharge ports (12) are arranged on the side surfaces of the compartments.
5. The alumina hollow sphere blowing forming device as claimed in claim 4, wherein the partition plates (11) are arranged equidistantly in a direction away from the secondary nozzle (8), the partition plates (11) are composed of inclined plates and vertical plates below the inclined plates, and the included angle between the inclined plates and the vertical plates is greater than 90 degrees and less than 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022658495.0U CN213971728U (en) | 2020-11-17 | 2020-11-17 | Alumina hollow ball blowing forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022658495.0U CN213971728U (en) | 2020-11-17 | 2020-11-17 | Alumina hollow ball blowing forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213971728U true CN213971728U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022658495.0U Active CN213971728U (en) | 2020-11-17 | 2020-11-17 | Alumina hollow ball blowing forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213971728U (en) |
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2020
- 2020-11-17 CN CN202022658495.0U patent/CN213971728U/en active Active
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