CN212042664U - Symmetrical drainage structure of vacuum gas atomization powder making equipment - Google Patents
Symmetrical drainage structure of vacuum gas atomization powder making equipment Download PDFInfo
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- CN212042664U CN212042664U CN202020100320.5U CN202020100320U CN212042664U CN 212042664 U CN212042664 U CN 212042664U CN 202020100320 U CN202020100320 U CN 202020100320U CN 212042664 U CN212042664 U CN 212042664U
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Abstract
The utility model discloses a vacuum gas atomization powder process equipment symmetrical formula drainage structure, including smelting chamber and atomizing bucket, be equipped with the atomizing nozzle towards the atomizing bucket between smelting chamber and the atomizing bucket, the lateral wall symmetry of atomizing bucket sets up a plurality of groups induced air mouth, and every group induced air mouth all is connected to the whirlwind bucket that corresponds, draught fan, booster pump, reinforced storehouse and smelting chamber are connected gradually along the air current direction in the gas outlet of whirlwind bucket, whirlwind bottom of the barrel portion is equipped with an album powder bucket. The symmetrical drainage structure is arranged to continuously drain the turbulent airflow at the lower end of the atomizing nozzle, so that the furnace blocking rate can be reduced, and meanwhile, inert gas is supplemented into the smelting chamber, so that a balanced closed-loop type gas supplementing structure in the whole atomizing system is formed, the wall hanging rate and the furnace blocking rate are further reduced, structures such as an additional gas supplementing source are not needed, the structure is simple and effective, and the production cost is reduced. The drainage can reduce the collision probability of coarser particles and finer particles, reduce the amount of satellite powder in the product and improve the product performance.
Description
Technical Field
The utility model belongs to vacuum atomization powder process field, more specifically relates to a vacuum atomization powder process equipment symmetry formula drainage structure.
Background
In the existing equipment for preparing powder by vacuum gas atomization, high-pressure inert gas breaks metal droplets melted by induction heating through a gas atomization spray disk, and then the metal droplets are condensed to form metal powder. In the atomization process, the atomization nozzles form weak negative pressure, and the back spray phenomenon can occur in some nozzles. The reverse spraying is a phenomenon that titanium alloy liquid drops are sprayed upwards under the action of air flow when entering the lower end of the atomizing spray plate. The metal liquid drops have the phenomenon of back spray, which causes serious furnace blockage and can not be produced continuously. In addition, in the atomization process, the airflow at the lower end of the atomization nozzle is disordered, so that the furnace blockage phenomenon is easily caused, and meanwhile, the solidified thin metal powder is easily collided with the unsolidified thick metal liquid drops to form adhesion and satellite powder. In order to improve the situation, an air supply device is required to be added in the smelting chamber or the feeding bin, namely, inert gas is continuously supplied into the smelting chamber, so that a certain amount of positive pressure exists between the smelting chamber and the atomizing barrel, the reverse spray phenomenon can be eliminated, and continuous production is realized. The existing general external air supplement structure or non-air supplement structure is adopted, and the external air supplement structure is adopted to reduce the pressure of 40MPa to about 0.5MPa through a pressure reducing valve, which has higher requirement on the pressure reducing valve; or the design of multi-stage decompression is adopted, the structure is complex, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects, designs a symmetrical drainage structure, continuously leads out the turbulent airflow at the lower end of the atomizing nozzle, can reduce the furnace blockage rate, and simultaneously, the sucked gas can supplement inert gas into the smelting chamber, thereby further reducing the furnace blockage rate; can also improve the powder performance and reduce the adhesion among the powder.
In order to realize the above-mentioned purpose, the utility model provides a vacuum gas atomization powder process equipment symmetrical formula drainage structure, including smelting chamber and atomizing bucket, be equipped with the atomizing nozzle towards the atomizing bucket between smelting chamber and the atomizing bucket, the lateral wall symmetry of atomizing bucket sets up a plurality of groups induced air mouth, and every group induced air mouth all is connected to the whirlwind bucket that corresponds, the gas outlet of whirlwind bucket connects gradually draught fan, booster pump, adds feed bin and smelting chamber along the air current direction, whirlwind barrel head portion is equipped with album powder bucket.
Every group induced air mouth contains the induced air mouth of a plurality of different angles, and the induced air mouth is 30 ~ 80 angles with the horizontal direction, selects according to the size of spraying the apex angle, and the export in every induced air mouth all is equipped with pneumatic valve, and the selection in induced air mouth is controlled through pneumatic valve. The induced draft opening can work singly, also can a plurality of cooperation work, can confirm according to actual use condition. A conical buffer structure is arranged between the pneumatic valve and the cyclone barrel, so that air flow can stably enter the cyclone barrel after being buffered.
The utility model also can set up the filter between draught fan and the booster pump, the filter core aperture of filter is 10 ~ 30 mu m, can further filter the metal powder in the air current.
Add the feed bin and still be connected with safety relief valve, when adding feed bin in gas pressure surpass 1 atmospheric pressure 20KPa, safety relief valve is automatic to be opened and is carried out the pressure release. When the gas pressure in the feeding bin does not exceed 1 atmosphere pressure and 20KPa, the safety relief valve is in a closed state.
Symmetrical formula drainage structure is at the during operation, and the air current gets into the whirlwind bucket through the induced air mouth, at draught fan suction in-process, have partial metal powder to be pumped in the whirlwind bucket to receive centrifugal force and action such as gravity and fall into and collect in the collection powder bucket, do not contain metal powder in the air current that makes the draught fan come out, air current process booster pump back pressure can reach 0.2-0.8MPa, carry out the tonifying qi through adding the feed bin, gaseous slowly gets into the smelting chamber after adding the feed bin, get into the atomizing bucket from the atomizing nozzle centre bore, realize the tonifying qi effect. Gaseous the emergence diffusion after crossing through atomizing nozzle lower extreme in the atomizing process, because the difference of atomizer, its gaseous meeting point then can reciprocate on its central axis, and the drainage direction is different when based on different injection apex angles, selects different induced air mouths to realize the drainage in the atomizing bucket.
The utility model discloses the part that does not relate to all is the same with prior art or can realize through prior art.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the turbulent air current of symmetrical formula drainage structure with the atomizing nozzle lower extreme and draw away constantly, can reduce stifled stove rate, supply inert gas in the smelting chamber simultaneously, form a closed loop formula tonifying qi structure, further reduce the wall built-up rate and stifled stove rate, this tonifying qi structure is the tonifying qi of whole atomizing system internal balance formula, need not plus tonifying qi air supply isotructure, and is simple effective, reduction in production cost. The drainage can reduce the collision probability of coarser particles and finer particles, reduce the amount of satellite powder in the product and improve the product performance.
Drawings
FIG. 1 is the structure diagram of the symmetrical drainage structure of the vacuum gas atomization powder manufacturing device.
In the figure: 1-smelting chamber, 2-atomizing barrel, 3-atomizing nozzle, 4-induced draft port, 5-pneumatic valve, 6-buffer structure, 7-cyclone barrel, 8-induced draft fan, 9-filter, 10-booster pump, 11-charging bin, 12-powder collecting barrel and 13-safety relief valve.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and specific examples.
Examples
According to the symmetrical formula drainage structure of vacuum gas atomization powder process equipment shown in figure 1, including smelting chamber 1 and atomizing bucket 2, be equipped with the atomizing nozzle 3 towards atomizing bucket 2 between smelting chamber 1 and the atomizing bucket 2, the lateral wall symmetry of atomizing bucket 2 sets up two sets of induced air mouths 4, and every group induced air mouth 4 all is connected to the whirlwind bucket 7 that corresponds, the gas outlet of whirlwind bucket 7 connects gradually draught fan 8, filter 9, booster pump 10, adds feed bin 11 and smelting chamber 1 along the air current direction, and the filter core aperture of filter 9 is 10 ~ 30 mu m, 7 bottoms of whirlwind bucket are equipped with collection powder bucket 12.
In this embodiment each group of air inducing ports 4 is provided with 5 air inducing ports 4 with different angles, the air inducing ports 4 are at an angle of 30-80 degrees with the horizontal direction, the air inducing ports are selected according to the size of the jet apex angle, and the outlets of the air inducing ports 4 are provided with pneumatic valves 5. A conical buffer structure 6 is arranged between the pneumatic valve 5 and the cyclone barrel 7.
This embodiment add feed bin 11 and still be connected with safety relief valve 13, and when gas pressure exceeded 1 atmospheric pressure 20KPa in adding feed bin 11, safety relief valve 13 was opened automatically and is carried out the pressure release. When the gas pressure in the feeding bin does not exceed 1 atmosphere pressure and 20KPa, the safety relief valve 13 is in a closed state.
This embodiment symmetry formula drainage structure is at the during operation, the air current gets into cyclone bucket 7 through induced air mouth 4, at 8 suction in-process of draught fan, have partial metal powder and be sucked in cyclone bucket 7, and receive centrifugal force and gravity etc. and act on and fall into collection powder bucket 12 and collect, do not contain metal powder in the dual function back air current through collection powder bucket 12 and filter 9, the air current can reach 0.2-0.8MPa through booster pump 10 back pressure, carry out the tonifying qi through adding feed bin 11, gaseous slowly gets into behind adding feed bin 11 and smelt room 1, get into atomizing bucket 2 from 3 centre holes of atomizing nozzle, realize the tonifying qi effect. Gaseous 3 lower extremes of atomizing nozzle of process of atomizing meet the back and take place the diffusion, as shown by the dotted line in figure 1, because atomizing nozzle 3's difference, its gaseous meeting point then can reciprocate on its central axis, and the drainage direction is different when based on different injection apex angles, selects different induced air mouth 4 to realize the drainage in the atomizing bucket 2.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (7)
1. The utility model provides a vacuum gas atomization powder process equipment symmetry formula drainage structure, its characterized in that is including smelting chamber (1) and atomizing bucket (2), be equipped with atomizing nozzle (3) towards atomizing bucket (2) between smelting chamber (1) and atomizing bucket (2), the lateral wall symmetry of atomizing bucket (2) sets up a plurality of groups induced air mouth (4), and every group induced air mouth (4) all are connected to the whirlwind bucket (7) that correspond, draught fan (8), booster pump (10), reinforced storehouse (11) and smelting chamber (1) are connected gradually along the air current direction in the gas outlet of whirlwind bucket (7), whirlwind bucket (7) bottom is equipped with collection powder bucket (12).
2. The symmetrical flow-guiding structure of the vacuum gas atomization powder-making device of claim 1, characterized in that each set of air-guiding ports (4) comprises a plurality of air-guiding ports (4) with different angles, and the angle between the air-guiding ports (4) and the horizontal direction is 30-80 °.
3. The symmetrical flow-guiding structure of vacuum gas atomization powder-making equipment as claimed in claim 2, characterized in that the outlet of each air-guiding opening (4) is provided with a pneumatic valve (5).
4. The symmetrical flow guiding structure of vacuum gas atomization powder manufacturing equipment according to claim 3, characterized in that a conical buffer structure (6) is arranged between the pneumatic valve (5) and the cyclone barrel (7).
5. The symmetrical flow guiding structure of the powder producing apparatus by vacuum atomization as claimed in claim 1, wherein a filter (9) is disposed between the induced draft fan (8) and the booster pump (10).
6. The symmetrical flow guiding structure of the vacuum gas atomization powder manufacturing device of claim 5, characterized in that the filter element aperture of the filter (9) is 10-30 μm.
7. The symmetrical flow guiding structure of the vacuum gas atomization powder manufacturing equipment of claim 1, characterized in that the feeding bin (11) is connected with a safety pressure relief valve (13).
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| CN202020100320.5U CN212042664U (en) | 2020-01-14 | 2020-01-14 | Symmetrical drainage structure of vacuum gas atomization powder making equipment |
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| CN202020100320.5U CN212042664U (en) | 2020-01-14 | 2020-01-14 | Symmetrical drainage structure of vacuum gas atomization powder making equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178537A (en) * | 2021-12-17 | 2022-03-15 | 无锡锋速钢丸有限公司 | Waste recovery device is used in stainless steel shot production |
| CN114472905A (en) * | 2022-01-17 | 2022-05-13 | 江苏威拉里新材料科技有限公司 | Rapid air supply device for gas atomization powder making equipment and use method thereof |
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2020
- 2020-01-14 CN CN202020100320.5U patent/CN212042664U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178537A (en) * | 2021-12-17 | 2022-03-15 | 无锡锋速钢丸有限公司 | Waste recovery device is used in stainless steel shot production |
| CN114472905A (en) * | 2022-01-17 | 2022-05-13 | 江苏威拉里新材料科技有限公司 | Rapid air supply device for gas atomization powder making equipment and use method thereof |
| CN114472905B (en) * | 2022-01-17 | 2024-02-23 | 江苏威拉里新材料科技有限公司 | Quick air supplementing device for aerosolized powder making equipment and application method of quick air supplementing device |
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