CN112091227A - Powder-making and mixing integrated equipment for powder die steel metallurgy production and use method thereof - Google Patents
Powder-making and mixing integrated equipment for powder die steel metallurgy production and use method thereof Download PDFInfo
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- CN112091227A CN112091227A CN202011112765.6A CN202011112765A CN112091227A CN 112091227 A CN112091227 A CN 112091227A CN 202011112765 A CN202011112765 A CN 202011112765A CN 112091227 A CN112091227 A CN 112091227A
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- 239000000843 powder Substances 0.000 title claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000002156 mixing Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009865 steel metallurgy Methods 0.000 title claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 81
- 239000010959 steel Substances 0.000 claims abstract description 81
- 230000001681 protective effect Effects 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 26
- 238000009833 condensation Methods 0.000 claims description 17
- 230000005494 condensation Effects 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000007670 refining Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 2
- 230000008676 import Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 43
- 239000000956 alloy Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 7
- 238000009689 gas atomisation Methods 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004663 powder metallurgy Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009692 water atomization Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses powder making and mixing integrated equipment for powder die steel metallurgical production and a using method thereof, wherein the powder making and mixing integrated equipment comprises a powder making barrel, the powder making barrel is fixedly arranged below a fixed bedplate, and a conical cover is fixed in the center of the top of the powder making barrel; the rotating assembly is arranged above the fixed bedplate and is connected with the conveying pipe; the gas supply assembly comprises a booster pump arranged on the outer wall of the powder making barrel, and the booster pump is connected with the rotating assembly; and a condensing structure; the device drives the crankshaft and the worm to rotate simultaneously through the motor, the worm drives the worm wheel to rotate so as to drive the booster pump to work and increase the conveying flow rate of protective gas, the rotary bevel gear set is matched with the conveying pipe to rotate so as to atomize molten steel flowing out of an atomizing head at the end of the conveying pipe, meanwhile, gas protects the atomized molten steel, the cooling structure is driven to pump cold water continuously and circularly under the action of the crankshaft, the gas is cooled, and the cooling solidification speed of the atomized molten steel is accelerated.
Description
Technical Field
The invention relates to the field of mechanical equipment, in particular to powder-making and mixing integrated equipment for powder die steel metallurgy production and a using method thereof.
Background
Many modern advanced powder metallurgy manufacturing processes require powders with strict geometric properties. There are various powder-making methods of powder metallurgy, such as gas atomization, water atomization and mechanized powder-making using conventional powder production.
The method for preparing the alloy powder by water atomization and gas atomization has the same principle of powder preparation, but the physical properties of the prepared powder are greatly different, particularly the shape. Because the heat capacity of the gas is smaller than that of water, when gas atomization is adopted, the chilling degree of the alloy is low, and the alloy liquid atomized into fine liquid drops cannot be immediately solidified when the alloy liquid drops are impacted by an atomization medium, so that the time for the alloy liquid drops to shrink into balls in the falling process is given, and the spherical alloy powder is easily obtained.
Most of the existing gas atomization powder metallurgy technologies can not realize circumferential uniform blowing of molten steel, and the condensation speed is relatively slow, so that the defects exist.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background art, the invention provides a powder making and mixing integrated device for powder die steel metallurgy production and a use method thereof.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
the utility model provides a metallurgical production of powder mould steel is with mixed integrative equipment of powder process, is fixed including the fixed platen and the symmetry that the level set up the support frame of fixed platen below both sides, wherein, still include:
the powder making barrel is fixedly arranged below the fixed platen, a conical cover is fixed at the center of the top of the powder making barrel, a through conveying pipe is arranged at the center of the conical cover in a sealing and rotating mode, and the conveying pipe is used for conveying hot-melt molten steel to the conical cover and the powder making barrel; and
the rotating assembly is arranged above the fixed platen and connected with the conveying pipe, an atomizing head is arranged inside the lower end of the conveying pipe, and the rotating assembly is used for driving atomized molten steel to rotate when the conveying pipe discharges the atomized molten steel through the atomizing head; providing centrifugal force for the atomized molten steel, so that the molten steel can rotate, atomize and flow out of the conveying pipe and the atomizing head; and
the gas supply assembly comprises a booster pump arranged on the outer wall of the powder making barrel, the booster pump is connected with the rotating assembly, the output end of the booster pump penetrates through the side wall of the conical cover and is fixedly sealed with the conical cover, the output end of the booster pump is tangentially opposite to the lower end of the conveying pipe, and the gas supply assembly is used for providing high-speed flowing shielding gas; and
the condensation structure, the condensation structure is connected the input and the runner assembly of booster pump for lower the temperature to the protective gas, make the protective gas who flows from the booster pump output have lower temperature, thereby help molten steel rapid solidification becomes the powder.
A use method of powder-making and mixing integrated equipment for powder die steel metallurgical production comprises the following steps:
firstly, building a platform, fixedly connecting a support frame with a ground cement foundation through bolts, mounting a fixed platform on the support frame, mounting equipment on the fixed platform, and checking the firmness of the whole structure after building is finished;
connecting pipelines, namely connecting the input end of the booster pump with protective gas storage equipment through an air inlet pipe, communicating a condenser pipe and a water inlet pipe with a cooling water tank, connecting a conveying pipe with molten steel refining equipment, and checking air tightness;
opening a valve, opening a gate valve connected with a discharge pipe, starting protective gas storage equipment, slowly and continuously conveying protective gas into the powder making cylinder by the protective gas storage equipment, and discharging air in the powder making cylinder, the pipeline and subsequent equipment;
starting powder making, opening a valve of molten steel refining equipment, discharging molten steel into a powder making barrel through a conveying pipe, accelerating the flow velocity of shielding gas by the work of a booster pump, and crushing atomized molten steel discharged from the lower ends of the conveying pipe and an atomizing head by the shielding gas blown out of an air supply pipe to form an atomized state;
and step five, vacuumizing, starting air extraction equipment on subsequent equipment, collecting the solidified powder steel ingot, extracting protective gas, and sealing and packaging the steel ingot powder after powder preparation is finished.
After adopting the structure, compared with the prior art, the invention has the following advantages: this equipment passes through the motor and drives the bent axle and the worm rotates simultaneously, thereby the worm drives the worm wheel and rotates and drive the booster pump work and increase the transport velocity of flow of protective gas, the rotatory bevel gear group of cooperation drives the conveyer pipe and rotates and carry out atomization treatment to the molten steel from conveyer pipe and atomising head atomizing outflow, simultaneously protect atomizing molten steel by the protective gas, prevent to produce the oxidation, and drive cooling structure under the bent axle effect and constantly circulate and pump the cold water, cool down protective gas, accelerate atomizing molten steel cooling solidification rate, compare in current gas atomization powder metallurgy technique, circumference atomizing has, the atomizing is even, and protective gas can with the function of atomizing molten steel intensive mixing, and the setting of cooling structure can shorten the setting time of powder steel ingot, reduce the length of solidification passageway.
Drawings
FIG. 1 is a schematic structural view of a powder-making and mixing integrated device for powder die steel metallurgical production;
FIG. 2 is an enlarged view of the portion A of the powder-making and mixing integrated equipment for powder die steel metallurgical production;
FIG. 3 is a schematic structural diagram of a sealing element and a connecting rod in a powder-making and mixing integrated device for powder die steel metallurgical production;
FIG. 4 is a schematic structural diagram of a conical cover in a powder-making and mixing integrated device for powder die steel metallurgical production;
in the figure: 1-fixing the bedplate; 2-a support frame; 3-making a powder cylinder; 4-a conveying pipe; 5-sealing the joint; 6-mounting a frame; 7-a conical cover; 8-air supply pipe; 9-a discharge pipe; 10-a box body; 11-a motor; 12-a worm; 13-a bevel gear; 14-bevel gear number two; 15-a worm gear; 16-a transmission member; 17-a crankshaft; 18-a connecting rod; 19-a sealing plug; 20-a check valve; 21-water inlet pipe; 22-condenser tube.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 4, in an embodiment of the present invention, a powder-making and mixing integrated apparatus for powder mold steel metallurgy production includes a horizontally disposed fixed platen 1 and support frames 2 symmetrically fixed on two sides below the fixed platen 1, wherein the apparatus further includes:
the powder making barrel 3 is fixedly arranged below the fixed platen 1, a conical cover 7 is fixed at the center of the top of the powder making barrel 3, a through conveying pipe 4 is arranged at the center of the conical cover 7 in a sealing and rotating mode, and the conveying pipe 4 is used for conveying hot-melted molten steel to the conical cover 7 and the powder making barrel 3; and
the rotating assembly is arranged above the fixed platen 1 and connected with the conveying pipe 4, an atomizing head is arranged inside the lower end of the conveying pipe 4, and the rotating assembly is used for driving atomized molten steel to rotate when the conveying pipe 4 discharges the atomized molten steel through the atomizing head, so that centrifugal force is provided for the molten steel, and the molten steel is enabled to rotate, atomize and flow out of the conveying pipe 4 and the atomizing head; and
the air supply assembly comprises a booster pump arranged on the outer wall of the powder making barrel 3, the booster pump is connected with the rotating assembly, the output end of the booster pump penetrates through the side wall of the conical cover 7 and is fixed with the conical cover in a sealing manner, the output end of the booster pump tangentially faces the lower end of the conveying pipe 4, and the air supply assembly is used for providing high-speed flowing shielding gas; and
the condensation structure is connected with the input end of the booster pump and the rotating assembly and used for cooling the protective gas, so that the protective gas flowing out of the output end of the booster pump has low temperature, and molten steel is helped to be rapidly solidified into powder;
specifically, molten steel after high-temperature atomization is conveyed into the powder making barrel 3 through the conveying pipe 4 and the atomizing head, the conveying pipe 4 is driven to rotate by the rotating assembly, so that the molten steel falls from the lower end of the conveying pipe 4 in a spiral rotating mode, the rotating assembly drives the booster pump to work, the output end of the booster pump penetrates through the side wall of the conical cover 7 to blow shielding gas to the lower end of the conveying pipe 4, the rapidly flowing shielding gas directly breaks fluid molten steel, so that the molten steel is atomized, the shielding gas can play a good role in protection, high-sphericity and high-cleanliness alloy powder is prepared by adopting a shielding gas atomization technology, the molten steel spirally flows out to ensure that the molten steel is fully contacted with the shielding gas at 360 degrees, a circumferential atomization effect is played, meanwhile, the shielding gas is cooled by utilizing a condensation structure, so that the shielding gas which is contacted with the molten steel to atomize can, helping the atomized molten steel to be quickly solidified and formed.
In one embodiment of the invention, the upper part of the conveying pipe 4 is hermetically and rotatably provided with a sealing joint 5, the sealing joint 5 is fixedly penetrated on a mounting frame 6, the mounting frame 6 is fixedly arranged on the fixed bedplate 1, and a discharge pipe 9 for discharging atomized and solidified steel ball fine powder is fixedly communicated with the bottom of the powder making barrel 3;
the pipeline for conducting molten steel is connected through the sealing joint 5, so that molten steel is discharged to the conveying pipe 4, atomized and solidified steel powder enters the discharge pipe 9 to be discharged, the steel powder is vacuumized, vibrated and sheathed by subsequent equipment, and subjected to hot isostatic pressing consolidation to form a completely compact powder ingot.
In another embodiment of the present invention, the rotating assembly includes:
a second bevel gear 14, wherein the second bevel gear 14 is fixed on the upper part of the conveying pipe 4 and is used for driving the conveying pipe 4 to rotate;
the first bevel gear 13 is meshed with the second bevel gear 14 and is used for driving the second bevel gear 14 to rotate; and
the worm 12 is horizontally and rotatably arranged on the fixed bedplate 1, and the first bevel gear 13 is fixed at the end of the worm 12 and used for driving the conveying pipe 4 vertical to the worm to rotate through a bevel gear set;
when the worm 12 rotates, the first bevel gear 13 is driven to synchronously rotate, and the rotating first bevel gear 13 drives the second bevel gear 14 and the conveying pipe 4 to rotate, so that the spiral flow of the molten steel is realized, and the molten steel is in all-directional contact with the shielding gas.
In another embodiment of the present invention, the booster pump comprises a booster pump housing fixed on the outer wall of the powder making cylinder 3 and an impeller rotatably arranged in the booster pump housing, a worm wheel 15 engaged with the worm 12 is rotatably arranged on the fixed platen 1, and the worm wheel 15 is connected with the rotating shaft of the impeller through a transmission piece 16;
when the worm 12 rotates, the worm wheel 15 is driven to rotate, the rotating worm wheel 15 drives the impeller in the booster pump to rotate by means of the transmission part 16, so that the effect of pumping protective gas is achieved, the protective gas has a large initial flow rate, and the effect of atomizing molten steel is achieved.
In another embodiment of the present invention, an air inlet pipe is arranged at an input end of the booster pump, a condenser pipe 22 for cooling the shielding gas is spirally wound on the surface of the air inlet pipe, the condenser pipe 22 is connected to an outlet of the condensing structure through a check valve 20, and an inlet pipe 21 is communicated with an inlet of the condensing structure through another check valve 20;
when the condensation structure works, the worm 12 is driven to rotate, meanwhile, cold water is sucked from the water inlet pipe 21 by the condensation structure through the two check valves 20 and then is discharged from the condensation pipe 22, the cold water flowing on the condensation pipe 22 cools the protective gas flowing in the air inlet pipe, and the temperature of the protective gas discharged from the air supply pipe 8 is reduced, so that the atomized molten steel powder can be absorbed by heat, and the atomized molten steel powder can be rapidly solidified.
In yet another embodiment of the present invention, the condensing structure includes:
the box body 10 is fixedly penetrated on the fixed bedplate 1, the water inlet pipe 21 is connected with the lower side wall of the box body 10, and the condensation pipe 22 is connected with the bottom of the box body 10;
the crankshaft 17 is rotatably connected to the upper part of the box body 10 and is connected with the worm 12, and one end of the crankshaft 17 is connected with the motor 11 arranged on the outer wall of the box body 10; and
the edge of the sealing plug 19 is in sealing and sliding fit with the inner wall of the box body 10, and the crankshaft 17 is connected with the sealing plug 19 through a connecting rod 18;
when the motor 11 works, the crankshaft 17 is driven to rotate, the rotating crankshaft 17 drives the sealing plug 19 to slide up and down along the inner wall of the box body 10 in a reciprocating sealing manner through the connecting rod 18, cold water is discharged from the water inlet pipe 21 through the two check valves 20 and then flows out of the condensation pipe 22, and meanwhile, the crankshaft 17 drives the worm 12 to rotate.
In another embodiment of the present invention, the top of the sealing joint 5 is provided with a connecting seat through a flange, the lower part of the discharge pipe 9 is provided with a gate valve for controlling the opening and closing of the discharge pipe 9, and the motor 11 and the gate valve are both connected with a controller through cables;
utilize the work of controller control motor 11 and slide valve, the sealed intercommunication discharge tube 9 of the material pipe that will follow-up evacuation vibrations dress sheathing equipment when carrying out the powder process during operation, starter motor 11 carries out the powder process to accomplish the powder process of whole flow.
In another embodiment of the invention, a method for using the powder-making and mixing integrated equipment for powder die steel metallurgy production comprises the following steps:
firstly, building a platform, namely fixedly connecting a support frame with a ground cement foundation through bolts, mounting a fixed platform on the support frame, mounting equipment on the fixed platform, and checking the firmness of the whole structure and the connection tightness of connecting pieces such as bolts and the like after building is finished so as to prevent vibration or collapse during working;
connecting pipelines, namely connecting the input end of the booster pump with protective gas storage equipment through an air inlet pipe, communicating a condenser pipe and a water inlet pipe with a cooling water tank, connecting a conveying pipe with molten steel refining equipment, checking air tightness and avoiding leakage, particularly a pipeline connected with the protective gas and a pipeline communicated with the molten steel;
opening a valve, opening a gate valve connected with a discharge pipe, starting protective gas storage equipment, slowly and continuously conveying protective gas into the powder making cylinder by the protective gas storage equipment, discharging air in the powder making cylinder, the pipeline and subsequent equipment, eliminating oxygen mixed in the air, and overcoming the oxidation-reduction reaction in the process of making powder from molten steel;
step four, starting powder making, opening a valve of molten steel refining equipment, discharging molten steel into a powder making barrel through a delivery pipe, accelerating the flow velocity of shielding gas by a booster pump, crushing atomized molten steel discharged from the lower ends of the delivery pipe and an atomizing head by using the shielding gas blown out from an air delivery pipe to form an atomized state, outputting centrifugal force to the molten steel by the rotating delivery pipe to enable the molten steel to be discharged in a rotating manner, and further ensuring that the molten steel is uniformly atomized under the action of the shielding gas in the circumferential direction, cooling the shielding gas by a condensing pipe, and enabling the blown-out shielding gas to accelerate the condensation of the atomized molten steel;
and step five, vacuumizing, starting air extraction equipment on subsequent equipment, collecting the solidified powder steel ingot, extracting protective gas, and sealing and packaging the steel ingot powder after powder preparation is finished.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (8)
1. The utility model provides a metallurgical production of powder mould steel is with mixed integrative equipment of powder process, is fixed including fixed platen (1) and the symmetry that the level set up support frame (2) of fixed platen (1) below both sides, its characterized in that still includes:
the powder making barrel (3) is fixedly arranged below the fixed bedplate (1), a conical cover (7) is fixed at the center of the top of the powder making barrel (3), a through conveying pipe (4) is arranged at the center of the conical cover (7) in a sealing and rotating mode, and the conveying pipe (4) is used for conveying hot-melt molten steel to the conical cover (7) and the powder making barrel (3); and
the rotating assembly is arranged above the fixed bedplate (1) and connected with the conveying pipe (4), an atomizing head is arranged inside the lower end of the conveying pipe (4), and the rotating assembly is used for driving atomized molten steel to rotate when the conveying pipe (4) discharges the atomized molten steel through the atomizing head; and
the air supply assembly comprises a booster pump arranged on the outer wall of the powder making barrel (3), the booster pump is connected with the rotating assembly, the output end of the booster pump penetrates through the side wall of the conical cover (7) and is fixedly sealed with the side wall, and the output end of the booster pump is tangentially opposite to the lower ends of the conveying pipe (4) and the atomizing head; and
the condensation structure is connected with the input end of the booster pump and the rotating assembly and used for cooling the airflow of the protective gas.
2. A powder-making and mixing integrated device for powder mold steel metallurgical production according to claim 1, characterized in that the upper part of the conveying pipe (4) is provided with a sealing joint (5) in a sealing and rotating manner, the sealing joint (5) is fixedly penetrated on a mounting frame (6), the mounting frame (6) is fixedly penetrated on the fixed bedplate (1), and a discharge pipe (9) for discharging atomized and solidified steel ball fine powder is fixedly communicated with the bottom of the powder making barrel (3).
3. A powder-making and mixing integrated device for metallurgical production of powder mold steel as claimed in claim 2, wherein the rotating assembly comprises:
the second bevel gear (14) is fixed at the upper part of the conveying pipe (4) and is used for driving the conveying pipe (4) to rotate;
the first bevel gear (13) is meshed with the second bevel gear (14) and is used for driving the second bevel gear (14) to rotate; and
the worm (12) is horizontally and rotatably arranged on the fixed bedplate (1), and the first bevel gear (13) is fixed at the end of the worm (12) and used for driving the conveying pipe (4) vertical to the worm to rotate through the bevel gear set.
4. A powder-making and mixing integrated equipment for powder mould steel metallurgy production according to claim 3, wherein the booster pump comprises a booster pump housing fixed on the outer wall of the powder-making barrel (3) and an impeller rotatably arranged in the booster pump housing, a worm wheel (15) meshed with the worm (12) is rotatably arranged on the fixed platen (1), and the worm wheel (15) is connected with the rotating shaft of the impeller through a transmission part (16).
5. The metallurgical production of powder mould steel mixes integrative equipment with powder process of claim 4, characterized in that, the input of booster pump is provided with the intake pipe, intake pipe surface spiral winding has condenser pipe (22) that is used for cooling to the protective gas, condenser pipe (22) are connected through a check valve (20) the export of condensation structure the import department of condensation structure communicates inlet tube (21) through another check valve (20).
6. A powder-making and mixing integrated device for metallurgical production of powder mold steel as claimed in claim 5, wherein the condensation structure comprises:
the box body (10) is fixedly penetrated on the fixed bedplate (1), the water inlet pipe (21) is connected with the side wall of the lower part of the box body (10), and the condensation pipe (22) is connected with the bottom of the box body (10);
the crankshaft (17) is rotationally connected to the upper part of the box body (10) and is connected with the worm (12), and one end of the crankshaft (17) is connected with a motor (11) arranged on the outer wall of the box body (10); and
the edge of the sealing plug (19) is in sealing sliding fit with the inner wall of the box body (10), and the crankshaft (17) is connected with the sealing plug (19) through a connecting rod (18).
7. A powder-making and mixing integrated equipment for metallurgical production of powder mold steel as claimed in claim 6, wherein the top of the sealing joint (5) is flange-mounted with a connecting seat, the lower part of the discharge pipe (9) is mounted with a gate valve for controlling the opening and closing of the discharge pipe (9), and the motor (11) and the gate valve are connected with a controller through cables.
8. Use method of the powder-making and mixing integrated equipment for metallurgical production of powder die steel according to any one of claims 1 to 7, characterized by comprising the following steps:
firstly, building a platform, fixedly connecting a support frame with a ground cement foundation through bolts, mounting a fixed platform on the support frame, mounting equipment on the fixed platform, and checking the firmness of the whole structure after building is finished;
connecting pipelines, namely connecting the input end of the booster pump with protective gas storage equipment through an air inlet pipe, communicating a condenser pipe and a water inlet pipe with a cooling water tank, connecting a conveying pipe with molten steel refining equipment, and checking air tightness;
opening a valve, opening a gate valve connected with a discharge pipe, starting protective gas storage equipment, slowly and continuously conveying protective gas into the powder making cylinder by the protective gas storage equipment, and discharging air in the powder making cylinder, the pipeline and subsequent equipment;
starting powder making, opening a valve of molten steel refining equipment, discharging the molten steel into a powder making barrel through a conveying pipe, accelerating the flow velocity of shielding gas by the work of a booster pump, and crushing the molten steel discharged from the lower end of the conveying pipe by using the shielding gas blown out from an air supply pipe to form an atomized state;
and step five, vacuumizing, starting air extraction equipment on subsequent equipment, collecting the solidified powder steel ingot, extracting protective gas, and sealing and packaging the steel ingot powder after powder preparation is finished.
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| CN202011112765.6A CN112091227A (en) | 2020-10-16 | 2020-10-16 | Powder-making and mixing integrated equipment for powder die steel metallurgy production and use method thereof |
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| CN202011112765.6A CN112091227A (en) | 2020-10-16 | 2020-10-16 | Powder-making and mixing integrated equipment for powder die steel metallurgy production and use method thereof |
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