CN115350645B - Metal shot centrifugal atomization device - Google Patents
Metal shot centrifugal atomization device Download PDFInfo
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- CN115350645B CN115350645B CN202211284397.2A CN202211284397A CN115350645B CN 115350645 B CN115350645 B CN 115350645B CN 202211284397 A CN202211284397 A CN 202211284397A CN 115350645 B CN115350645 B CN 115350645B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
Abstract
The application discloses shot metal centrifugal atomization device, be applied to shipboard auxiliary assembly technical field, shot metal centrifugal atomization device includes the liquid reserve tank, spray assembly and centrifugal atomization subassembly, the liquid reserve tank has the liquid reserve chamber of following the first direction extension, the liquid reserve chamber is used for storing cooling medium, spray assembly has a plurality of mouths that spray of arranging around the first direction, cooling medium that spray assembly stored can flow out and form the water curtain from spraying the mouth, centrifugal atomization subassembly includes the rotary disk that is used for storing metallic solution, the rotary disk has a plurality of side openings of arranging around the first direction, rotary disk configuration becomes can be rotary motion around the first direction, make metallic solution from being thrown out in the side opening and dispersing into a plurality of molten state's shot, all molten state's shot falls into behind the water curtain in the cooling medium that the liquid reserve chamber stores with solidification formation a plurality of solid-state shots. The design can effectively improve the yield of the small-particle-size metal shots.
Description
Technical Field
The application relates to the technical field of auxiliary equipment on ships, in particular to a metal shot centrifugal atomization device.
Background
The ship sails in the water route for a long time, and the corrosion of water leads to some spare parts of ship to rust easily, if not handle rusty spare part in time, spare part can finally damage and lead to the operation of ship to appear the incident. Because the ship has a long period of sailing in a waterway, auxiliary equipment is often arranged on the ship for the maintenance of the ship.
The shot blasting machine is a common shipboard auxiliary device, has a good polishing effect, and metal shots are thrown out of the shot blasting machine under the action of centrifugal force and impact the surfaces of rusty parts, so that iron rust attached to the surfaces of the parts is removed. The metal shot belongs to the consumable article, and when the metal shot struck rusty spare part surface, spare part also can exert great reaction force to the metal shot, and the metal shot exists the wearing and tearing under this great reaction force.
The centrifugal atomization method is a common metal pill forming method, and is a method for separating metal solution by using centrifugal force and allowing the metal solution to fall into a cooling medium for solidification and forming.
In the related art, the small-sized metal shot is usually used to hit the surface of the rusted component to optimize the removal effect of the rust adhered to the surface of the component, so the demand for the small-sized metal shot is high, and how to increase the yield of the small-sized metal shot in the centrifugal casting process is an urgent problem to be solved.
Disclosure of Invention
The embodiment of the application provides a metal shot centrifugal atomization device which is used for solving the problem that the yield of metal shots with small particle sizes is low in the centrifugal casting process.
The embodiment of the application provides a metal pill centrifugal atomization device; the metal pill centrifugal atomization device comprises a liquid storage tank, a spraying assembly and a centrifugal atomization assembly, wherein the liquid storage tank is provided with a liquid storage cavity extending along a first direction, the liquid storage cavity is used for storing cooling media, the spraying assembly is used for storing the cooling media, the spraying assembly is installed on the liquid storage tank and located on one side of an opening of the liquid storage cavity, the spraying assembly is provided with a plurality of spraying openings arranged around the first direction, the cooling media stored by the spraying assembly can flow out of the spraying openings and form a water curtain, the centrifugal atomization assembly is installed on the liquid storage tank and located between the spraying assembly and a cavity bottom wall of the liquid storage cavity, the centrifugal atomization assembly comprises a rotary disk used for storing metal solution, the rotary disk is provided with a plurality of side openings arranged around the first direction, the rotary disk is configured to rotate around the first direction, so that the metal solution is thrown out of the side openings and dispersed into a plurality of metal pills in a molten state, and all the metal pills in the molten state fall into the cooling media stored in the liquid storage cavity after passing through the water curtain to form a plurality of dispersed solid metal pills in a solidified manner.
In some embodiments, the spray assembly includes a spray container and a plurality of spray pipes, the spray container has a spray cavity for storing a cooling medium, the spray container further has a spray surface facing the cavity bottom wall of the liquid storage cavity, the plurality of spray pipes are arranged on the spray surface around a first direction and communicated with the spray cavity, each spray pipe has a first port far away from one side of the spray surface, and the first port serves as the spray opening.
In some embodiments, the spray container is annular, the annular spray container defines a central axis parallel to or coincident with the first direction, and each of the spray pipes further has a second port near one side of the spray surface, the second port being disposed closer to the central axis of the spray container than the first port in a direction perpendicular to the first direction.
In some embodiments, an acute angle between the extending direction of each spray pipe and the central axis of the spray container is greater than or equal to 15 degrees and less than or equal to 20 degrees.
In some embodiments, the centrifugal atomization device further includes a pressure assembly, the pressure assembly is mounted on the spray assembly, and the pressure assembly is configured to change the air pressure in the spray chamber, so that the air pressure in the spray chamber and the external atmospheric pressure form a pressure difference, so that the cooling medium stored in the spray chamber is ejected from the spray opening under the action of the pressure difference and forms a water curtain.
In some of these embodiments, the spray assembly still includes inlet liquid pipeline and suction pump, and inlet liquid pipeline's one end stretches into the stock solution intracavity and is close to the chamber bottom wall setting in stock solution chamber, and inlet liquid pipeline's the other end and the spray container intercommunication, the suction pump is located inlet liquid pipeline.
In some of these embodiments, the pressure assembly includes a pressure pump, which is disposed in the inlet conduit.
In some of these embodiments, the pressure assembly includes an air bladder, an inflator, and a suction pump. The gasbag is located and sprays the intracavity and be connected with spraying the container, and the gasbag includes the utricule, with the air inlet of utricule intercommunication and with the gas outlet of utricule intercommunication. The inflator pump is positioned outside the spraying cavity and is connected with the spraying container, and an inflation port of the inflator pump is communicated with the air inlet of the air bag. The air pump is positioned outside the spraying cavity and is connected with the spraying container, and an air pumping opening of the air pump is communicated with an air outlet of the air bag.
In some embodiments, the metal pill centrifugal atomization device further comprises a first liquid level sensor, a second liquid level sensor and a controller; the first liquid level sensor is arranged on the spraying container and used for detecting the liquid level of the cooling medium in the spraying cavity; the second liquid level sensor is installed in the spray container and used for detecting the liquid level of the cooling medium in the spray cavity. The controller is electrically connected with the first liquid level sensor and the second liquid level sensor; when the first liquid level sensor detects that the liquid level of the cooling medium in the spraying cavity is within a first threshold range, the controller turns on the inflator pump to enable the inflator pump to inflate the bag body of the air bag, and at the moment, the air pump is in a closed state; when the second liquid level sensor detects that the liquid level of the cooling medium in the spraying cavity is within a second threshold range, the controller closes the inflator pump and opens the air pump, so that the inflator pump stops inflating the air bag body of the air bag and air in the air bag body of the air bag is pumped out through the air pump.
In some of these embodiments, the centrifugal atomizing assembly further comprises a mount and a rotary motor; the mounting seat is positioned in the liquid storage cavity and connected with the cavity bottom wall of the liquid storage cavity, and the mounting seat is provided with a mounting space; the rotating motor is arranged in the installation space, and a rotating shaft of the rotating motor is fixedly connected with the rotating disk.
The invention has the following beneficial effects:
after a cooling medium stored in the spraying assembly flows out from the spraying port to form a water curtain, the centrifugal atomizing assembly is started, the metal solution in the rotating disk penetrates through the side holes of the rotating disk under the action of larger centrifugal force to be dispersed into a plurality of metal shots in a molten state with smaller diameters, the metal shots in the molten state with smaller diameters penetrate through the water curtain, the water curtain can play a cooling role on the metal shots in the molten state with smaller diameters, the flying radius of the metal shots in the molten state with smaller diameters can be effectively reduced, and the metal shots in the molten state with smaller diameters can directly fall into the bottom wall of the liquid storage cavity to be solidified into a plurality of solid metal shots with smaller diameters.
The spray cavity of the spray container is used for storing cooling media, and a hollow area formed by the inner annular surface of the spray container can be used for separating the centrifugal atomization assembly from the containing part, so that the space occupancy rate of the centrifugal atomization device and the spray assembly in the liquid storage tank is reduced. The shower is used for forming the water curtain that encircles the setting of first direction with coolant reposition of redundant personnel, and the shower is the mode slope setting that expands outward and can makes the even stability that the water curtain formed, improves water curtain formation efficiency.
The suction pump can be with the old cooling medium of the stock solution intracavity of liquid storage tank via inlet liquid pipeline suction again spray the intracavity of spraying the container, has effectively realized the cyclic utilization of the old cooling medium of the stock solution intracavity of liquid storage tank.
The pressure assembly can increase the air pressure in the spraying cavity, so that the formed water curtain has certain impact force, and the flying radius of the metal shot in a molten state can be further effectively reduced. The design of the pressure pump can ensure that the formed water curtain has certain impact force. The inflator pump inflates the bag body of the air bag through the air inlet of the air bag, so that the formed water curtain has certain impact force.
When the first liquid level sensor detects that the liquid level of the cooling medium in the spraying cavity is within a first threshold range, the controller turns on the inflator pump, the inflator pump inflates the bag body, and the volume of the bag body is gradually increased to form a water curtain with certain impact force; when the second liquid level sensor detects that the liquid level of the cooling medium in the spraying cavity is within the second threshold range, the controller closes the inflator pump and opens the air pump, the air pump pumps air from the capsule body, and the volume of the capsule body is gradually reduced to reset the volume of the capsule body.
The rotating motor drives the rotating disc to rotate at a high rotating speed, so that the metal solution can be effectively dispersed into a plurality of metal shots with small diameters in a molten state after being subjected to high centrifugal force in the rotating disc and penetrating out of the side holes of the rotating disc.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a centrifugal metal pill atomizing device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a spray assembly in an embodiment of the present application;
FIG. 3 is a schematic structural view of a spray assembly according to another embodiment of the present disclosure;
FIG. 4 is a schematic side view of a spray assembly in one embodiment of the present application;
FIG. 5 is a schematic cross-sectional view of the spray assembly of FIG. 1;
FIG. 6 is a schematic diagram of a centrifugal atomization device for metal shot in one embodiment of the present application;
fig. 7 is a schematic cross-sectional view of the spray assembly of fig. 6.
Reference numerals: 1. a metal shot centrifugal atomization device; 10. a liquid storage tank; 11. a liquid storage cavity; 111. an opening of the reservoir chamber; 112. a cavity bottom wall of the liquid storage cavity; x, a first direction; 20. a spray assembly; 21. a spray container; 211. a spray chamber; 212. a spray surface; 22. a spray pipe; 221. a first port; 222. a second port; 223. a spray port; 23. a liquid inlet pipeline; 24. a water pump; 30. a centrifugal atomizing assembly; 31. rotating the disc; 311. a side hole; 32. a mounting seat; 321. an installation space; 33. a rotating electric machine; 40. a pressure assembly; 41. a pressure pump; 42. an air bag; 421. a capsule body; 422. an air inlet; 423. an air outlet; 43. an inflator pump; 44. an air pump; 51. a first liquid level sensor; 52. a second liquid level sensor; 60. a controller; m and a central axis.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
The ship sails in the water route for a long time, and the corrosion of water leads to some spare parts of ship to rust easily, if not handle rusty spare part in time, spare part can finally damage and lead to the operation of ship to appear the incident. Because the ship has a long period of sailing in a waterway, auxiliary equipment is often arranged on the ship for the maintenance of the ship.
The shot blasting machine is a common auxiliary device on a ship, has a good polishing effect, and metal shots are thrown out of the shot blasting machine under the action of centrifugal force and impact on the surface of a rusty part, so that rust attached to the surface of the part is removed. The metal shot belongs to the consumable article, and when the metal shot struck rusty spare part surface, spare part also can exert great reaction force to the metal shot, and the metal shot exists the wearing and tearing under this great reaction force.
The centrifugal atomization method is a common metal pill forming method, and is a method for separating metal solution by using centrifugal force and allowing the metal solution to fall into a cooling medium for solidification and forming.
In the related art, the small-sized metal shot is usually used to hit the surface of the rusted component to optimize the removal effect of the rust adhered to the surface of the component, so the demand for the small-sized metal shot is high, and how to increase the yield of the small-sized metal shot in the centrifugal casting process is an urgent problem to be solved.
In order to solve the above technical problem, referring to fig. 1, the present application provides a metal pellet centrifugal atomization apparatus 1, which can effectively improve the yield of metal pellets with small particle size.
The metal shot centrifugal atomization device 1 comprises a liquid storage tank 10, a spraying assembly 20 and a centrifugal atomization assembly 30, wherein the liquid storage tank 10 is provided with a liquid storage cavity 11 extending along a first direction X, the liquid storage cavity 11 is used for storing a cooling medium, the spraying assembly 20 is used for storing the cooling medium, the spraying assembly 20 is installed on the liquid storage tank 10 and is positioned at one side of an opening 111 of the liquid storage cavity, the spraying assembly 20 is provided with a plurality of spraying ports 223 arranged around the first direction X, the cooling medium stored in the spraying assembly 20 can flow out from the spraying ports 223 and form a water curtain, the centrifugal atomization assembly 30 is installed on the liquid storage tank 10 and is positioned between the spraying assembly 20 and a cavity bottom wall 112 of the liquid storage cavity, the centrifugal atomization assembly 30 comprises a rotary disk 31 used for storing a metal solution, the rotary disk 31 is provided with a plurality of side holes 311 arranged around the first direction X, the rotary disk 31 is configured to rotate around the first direction X, so that the metal solution is thrown out from the side holes 311 and dispersed into a plurality of metal shots in a molten state, and all the metal shots fall into the cooling medium stored in the liquid storage cavity 11 after passing through the water curtain to form a plurality of solid metal shots which are dispersed and solidified.
The following will describe the specific structure of the metal pellet centrifugal atomizing device 1 with reference to fig. 1 to 7.
The metal pill centrifugal atomization device 1 comprises a liquid storage tank 10, a spraying assembly 20 and a centrifugal atomization assembly 30.
The liquid reservoir 10 serves as a container for cooling the molten metal pellets in the centrifugal atomizing device 1 and collecting the metal pellets which are cooled to form a solid state. The specific shape of the reservoir 10 is not limited herein, and the designer can design the reservoir reasonably according to actual needs.
The liquid storage tank 10 is provided with a liquid storage cavity 11 extending along the first direction X, the liquid storage cavity 11 is a hollow area in the liquid storage tank 10, the specific shape of the liquid storage cavity 11 is not limited, and a designer can reasonably design according to actual needs.
The liquid storage cavity 11 is used for storing a cooling medium, the cooling medium is used for cooling the metal shots in the molten state, so that the metal shots in the molten state are converted into a liquid medium of the metal shots in the solid state, and the cooling medium and the metal shots in the molten state are not mutually fused. For example, the cooling medium may be, but is not limited to, a liquid medium such as water.
The spray assembly 20 serves as a structure for decelerating molten metal pellets that rotate at a high speed in the metal pellet centrifugal atomizing apparatus 1.
The spray assembly 20 is installed in the reservoir 10 at a side where the opening 111 of the reservoir cavity is located. Here does not limit the specific installation mode between spray set 20 and liquid storage tank 10, and liquid storage tank 10 is as the support body in order to support spray set 20, and the designer can carry out reasonable design to the specific installation mode between spray set 20 and the liquid storage tank 10 according to actual need.
The spray assembly 20 is used for storing a cooling medium, the spray assembly 20 is provided with a plurality of spray openings 223 arranged around the first direction X, and the cooling medium stored in the spray assembly 20 can flow out of the spray openings 223 and form a water curtain. For example, the cooling medium stored in the spray assembly 20 can flow out in a stream form from each spray opening 223 under the effect of its own weight, and the cooling medium in the stream state flowing out from all the spray openings 223 encloses to form a water curtain arranged around the first direction X.
The centrifugal atomizing assembly 30 serves as a structural member for dispersing the metal solution into a plurality of metal pellets in a molten state in the metal pellet centrifugal atomizing device 1.
The centrifugal atomizing assembly 30 is located between the spray assembly 20 and the chamber bottom wall 112 of the reservoir chamber.
The centrifugal atomizing assembly 30 comprises a rotating disc 31, the rotating disc 31 is used for storing the metal solution, the rotating disc 31 is used as a container for containing the metal solution, the specific shape of the rotating disc 31 is not limited, and a designer can reasonably design the specific shape of the rotating disc 31 according to actual needs.
The rotating disk 31 has a plurality of side holes 311 arranged around the first direction X, and the side holes 311 may be formed on a sidewall of the rotating disk 31 by injection molding or 3D printing. The plurality of side holes 311 may be evenly distributed on the sidewall of the rotating disk 31 at equal intervals around the first direction X.
The rotating disc 31 is configured to rotate around the first direction X, so that the metal solution is thrown out of the side holes 311 of the rotating disc 31 and is dispersed into a plurality of metal shots in a molten state, and all the metal shots in the molten state pass through the water curtain and fall into the cooling medium stored in the reservoir cavity 11 to be solidified into a plurality of dispersed metal shots in a solid state.
It should be noted that the analysis of the centrifugal atomization of the metal solution at different rotation speeds yields: the rotation speed of the rotating disk 31 is a key factor affecting the separation of the metal solution into molten metal pellets of different diameters during centrifugal atomization. When the diameter of the rotating disk 31 and the properties of the metal solution are constant, the diameter of the molten metal shot in which the metal solution is dispersed after passing through the side holes 311 of the rotating disk 31 is decreased as the rotation speed of the rotating disk 31 is increased.
Based on the metal shot centrifugal atomization device 1 in the embodiment of the present application, after the cooling medium stored in the spray assembly 20 flows out from the spray port 223 to form a water curtain, the centrifugal atomization assembly 30 is started, the rotary disc 31 rotates around the first direction X, the metal solution is subjected to a larger centrifugal force in the rotary disc 31 by increasing the rotation speed of the rotary disc 31 rotating around the first direction X, the metal solution is dispersed into a plurality of metal shots in a molten state with a smaller diameter after passing through the side holes 311 of the rotary disc 31, the metal shots in the molten state with a smaller diameter impact the water curtain under the action of a larger centrifugal force, the water curtain can cool the metal shots in the molten state with a smaller diameter on the one hand, and can effectively reduce the flight radius of the metal shots in the molten state with a smaller diameter on the other hand, so that the metal shots in the molten state with a smaller diameter can be prevented from directly impacting the cavity side wall of the cavity 11, thereby preventing the metal shots in the molten state with a smaller diameter from being deformed under the action of the cavity side wall of the cavity, so that the metal shots with a smaller diameter can fall into the cavity bottom wall 112 of the liquid storage cavity to solidify to form a plurality of metal shots with a smaller diameter, thereby achieving the effect of the solid metal shot production of the liquid storage cavity, and increasing the solid metal output of the metal shots with a smaller diameter.
It should be noted that, this metal shot centrifugal atomization device 1 can effectively promote the output of the less solid-state metal shot of diameter to guarantee to provide the metal shot of sufficient demand volume on the boats and ships and to polish the processing in order to supply the shot-blasting machine to zero device of boats and ships. For example, when a certain pipe in a ship is rusted due to long-term immersion in water, a maintenance person can put solid metal shots with small diameters produced by the metal shot centrifugal atomization device 1 into a shot slipping pipe of a shot blasting machine, the solid metal shots with small diameters thrown out of the shot blasting machine impact the surface of the pipe under the action of centrifugal force, so that rust attached to the surface of the pipe falls off under the impact of the solid metal shots with small diameters, the surface of the pipe polished by the shot blasting machine is smoother, the maintenance person can coat new paint on the surface of the pipe again, the corrosion resistance of the pipe is improved, and the service life of the pipe is prolonged.
Further, considering that the spray assembly 20 needs to store the cooling medium on the one hand and can form a water curtain with the cooling medium on the other hand, in order to make the spray assembly 20 have corresponding functions, it is designed that in some embodiments, the spray assembly 20 includes a spray container 21 and a plurality of spray pipes 22, the spray container 21 has a spray cavity 211 for storing the cooling medium, the spray container 21 further has a spray surface 212 disposed facing the cavity bottom wall 112 of the reservoir cavity, the plurality of spray pipes 22 are disposed on the spray surface 212 around the first direction X and are communicated with the spray cavity 211, each spray pipe 22 has a first port 221 on a side away from the spray surface 212, and the first port 221 serves as the spray port 223. The showers 22 may be arranged on the spraying surface 212 in one turn around the first direction X, or in multiple turns around the first direction X. In the design, the spray cavity 211 of the spray container 21 is used for storing the cooling medium, the cooling medium stored in the spray cavity 211 is dispersed into a bundle shape after passing through the spray pipe 22, and a plurality of bundle-shaped cooling media are enclosed to form a water curtain arranged around the first direction X.
Further, in some embodiments, spray container 21 is annular, and annular spray container 21 defines a central axis M parallel to or coincident with first direction X, and each shower 22 further has a second port 222 adjacent to one side of spray face 212, and in a direction perpendicular to first direction X (i.e., in a direction perpendicular to central axis M), second port 222 is disposed closer to central axis M of spray container 21 than first port 221. In the design, the whole spray container 21 adopts an annular structure, and a hollow area formed by the inner annular surface of the spray container 21 can be used for accommodating the part to separate the centrifugal atomization assembly 30, so that the centrifugal atomization assembly 30 and the spray assembly 20 are arranged more tightly on the space structure, and the space occupancy rate of the centrifugal atomization device and the spray assembly 20 in the liquid storage tank 10 is saved; the extending directions of the spraying pipes 22 are obliquely arranged in an outward expanding mode relative to the spraying surface 212 of the spraying container 21, so that all the spraying ports 223 are arranged in a staggered mode, the liquid amount is ensured, the water curtain is uniform and stable, and the water curtain forming efficiency is improved.
Further, in some embodiments, an acute angle α between the extending direction of each shower 22 and the central axis M of the spray container 21 is 15 degrees or more and 20 degrees or less. Through reasonable design of the inclination angles of the spray pipes 22, the first ports 221 of the two adjacent spray pipes 22 can be partially overlapped in the radial direction approximately along the spray container 21, so that gaps between the bunched cooling mediums sprayed out of the first ports 221 of the two adjacent spray pipes 22 can be effectively reduced, the metal shots in the molten state with small diameter can be prevented from directly passing through the water curtain between the two bunched cooling mediums, the water curtain can be formed more uniformly and stably, the water curtain forming efficiency is further improved, and the metal shots in the molten state with small diameter can be ensured to effectively pass through the water curtain under the action of the centrifugal force of the rotating disc 31. When the acute angle alpha is smaller than 15 degrees, the cooling medium falls into the liquid storage cavity 11 to cause splash splashing, and the centrifugal atomization assembly 30 is influenced; when the acute angle α is greater than 20 degrees, the proportion of solid metal shots with smaller diameters among all the solid metal shots obtained decreases.
Considering that after the cooling medium in the spraying cavity 211 of the spraying container 21 is used up, a new cooling medium can be injected into the spraying cavity 211 of the spraying container 21 again, and in order to realize recycling of the old cooling medium in the liquid storage cavity 11 of the liquid storage tank 10, in some embodiments, the spraying assembly 20 further includes a liquid inlet pipe 23 and a water pump 24, one end of the liquid inlet pipe 23 extends into the liquid storage cavity 11 and is disposed near the cavity bottom wall 112 of the liquid storage cavity, the other end of the liquid inlet pipe 23 is communicated with the spraying container 21, and the water pump 24 is disposed in the liquid inlet pipe 23. In this design, through design suction pump 24, suction pump 24 can be with old coolant in the stock solution chamber 11 of stock solution pond 10 via inlet pipe 23 pumpout in the chamber 211 that sprays of spray container 21 again, need not additionally spray the new coolant of injecting into the chamber 211 that sprays of container 21, has effectively realized the cyclic utilization of old coolant in the stock solution chamber 11 of stock solution pond 10. It should be noted that the old cooling medium absorbs the heat of the molten metal pellets with a smaller diameter, which causes the temperature of the old cooling medium to rise, but the cooling medium with the raised temperature can dissipate the accumulated heat by means of thermal convection for a while, so that the temperature of the cooling medium is lowered for the next cooling.
Considering that the metal solution is subjected to a larger centrifugal force in the rotating disc 31, the metal solution is dispersed into a plurality of metal shots in a molten state with smaller diameters after passing through the side holes 311 of the rotating disc 31, the metal shots in the molten state with smaller diameters collide with the water curtain under the action of the larger centrifugal force, the water curtain can reduce the flying radius of the metal shots in the molten state with smaller diameters, the metal shots in the molten state with smaller diameters are prevented from directly colliding with the cavity side wall of the liquid storage cavity 11, and the flying radius of the metal shots in the molten state with smaller diameters is further reduced, therefore, the centrifugal atomization device is designed, in some embodiments, further comprises a pressure assembly 40, the pressure assembly 40 is installed on the spray assembly 20, the pressure assembly 40 is configured to change the air pressure in the spray cavity 211, and the air pressure in the spray cavity 211 forms a pressure difference with the external atmospheric pressure, so that the cooling medium stored in the spray cavity 211 is sprayed from the spray port 223 under the action of the pressure difference and forms the water curtain. In this design, through design pressure unit 40, pressure unit 40 can increase the atmospheric pressure in the chamber 211 that sprays, make the atmospheric pressure in the chamber 211 that sprays be greater than external atmospheric pressure in order to form pressure differential, the cooling medium in the chamber 211 that sprays and goes out from the mouth 223 that sprays of shower 22 under the effect of this pressure differential, make the water curtain that forms have certain impact force, when the shot metal of the less molten state of diameter striking has the water curtain of certain impact force, the impact force that the water curtain has can further effectively reduce the radius of flight of the shot metal of molten state, make the shot metal of the less molten state of diameter can fall into the chamber diapire 112 of stock solution chamber with the solidification formation a plurality of solid-state shot metal that the diameter is less.
It should be noted that the cooling medium can be sprayed from the spray openings 223 of the spray pipes 22 by the pressure assembly 40 to form a water curtain, and the water curtain has a certain impact force, and when the molten metal shots with smaller diameters pass through the water curtain, the molten metal shots with smaller diameters can be dispersed into molten metal shots with smaller diameters by the impact force of the water curtain, and then the molten metal shots with smaller diameters fall into the cavity bottom wall 112 of the reservoir cavity to be solidified into a plurality of solid metal shots with smaller diameters.
Further, the embodiments of the pressure assembly 40 can be, but are not limited to, the following embodiments.
In the first embodiment, the pressure assembly 40 includes a pressure pump 41, and the pressure pump 41 is provided in the liquid inlet pipe 23. In this design, the pressure pump 41 is designed to pressurize the cooling medium stored in the shower chamber 211 so that the air pressure in the shower chamber 211 is greater than the ambient atmospheric pressure to form a pressure difference, and the cooling medium in the shower chamber 211 is ejected from the shower port 223 of the shower pipe 22 by the pressure difference to form a water curtain with a certain impact force.
In the second embodiment, the pressure assembly 40 includes an air bag 42, an inflator 43, and a suction pump 44. The air bag 42 is positioned in the spraying cavity 211 and connected with the spraying container 21, and the air bag 42 comprises a bag body 421, an air inlet 422 communicated with the bag body 421 and an air outlet 423 communicated with the bag body 421. The inflator 43 is located outside the spraying cavity 211 and connected with the spraying container 21, and an inflation port of the inflator 43 is communicated with the air inlet 422 of the air bag 42. The air pump 44 is located outside the shower chamber 211 and connected to the shower container 21, and an air suction port of the air pump 44 communicates with the air outlet 423 of the air bag 42. Here, the specific connection mode between the capsule 421 of the air bag 42 and the wall of the spraying cavity 211 is not limited, and a designer can design reasonably according to actual needs. In the design, the inflator 43 inflates the bag body 421 of the air bag 42 through the air inlet 422 of the air bag 42, the volume of the bag body 421 of the air bag 42 is gradually increased, so that the air pressure in the spraying cavity 211 is greater than the external atmospheric pressure to form a pressure difference, and the cooling medium in the spraying cavity 211 is sprayed out from the spraying port 223 of the spraying pipe 22 under the action of the pressure difference to form a water curtain with a certain impact force; the air pump 44 is used for exhausting the air sent into the bag body 421 of the air bag 42 by the inflator 43 to the outside atmosphere so as to reset the bag body 421 of the air bag 42, so that the inflator 43 can inflate the bag body 421 of the air bag 42 next time.
Further, for the automatic control of the air pump 43 and the air pump 44, it is designed that in some embodiments, the metal pill centrifugal atomizing device 1 further includes a first liquid level sensor 51, a second liquid level sensor 52, and a controller 60. A first level sensor 51 is mounted to the spray container 21, the first level sensor 51 being used to detect the level of the cooling medium in the spray chamber 211. A second liquid level sensor 52 is mounted to the spray container 21, the second liquid level sensor 52 being for detecting the level of the cooling medium in the spray chamber 211. The controller 60 is electrically connected to the first liquid level sensor 51 and the second liquid level sensor 52. When the first liquid level sensor 51 detects that the liquid level of the cooling medium in the spray chamber 211 is within the first threshold range, the controller 60 turns on the inflator 43, so that the inflator 43 inflates the bag 421 of the airbag 42, and the air pump 44 is in a closed state. When the second liquid level sensor 52 detects that the liquid level of the cooling medium in the spray chamber 211 is in the second threshold range, the controller 60 turns off the inflator 43 and turns on the suction pump 44, so that the inflator 43 stops inflating the bladder 421 of the airbag 42 and the gas in the bladder 421 of the airbag 42 is sucked out by the suction pump 44. The designer can reasonably design the first threshold range of the first liquid level sensor 51 and the second threshold range of the second liquid level sensor 52 according to actual needs. It should be noted that the first threshold range and the second threshold range both correspond to an interval range, a difference between a maximum value and a minimum value of the first threshold range and a difference between a maximum value and a minimum value of the second threshold range may be equal or unequal, and the minimum value of the first threshold range is greater than the maximum value of the second threshold range. In the design, when the first liquid level sensor 51 detects that the liquid level of the cooling medium in the spraying cavity 211 is within a first threshold range, the first liquid level sensor 51 sends a first electric signal to the controller 60, the controller 60 automatically turns on the inflator 43 according to the first electric signal, the inflator 43 starts to inflate the bag body 421 of the air bag 42 through the air inlet 422 of the air bag 42, the volume of the bag body 421 of the air bag 42 is gradually increased, so that the air pressure in the spraying cavity 211 is greater than the external atmospheric pressure to form a pressure difference, and the cooling medium in the spraying cavity 211 is ejected out from the spraying port 223 of the spraying pipe 22 under the action of the pressure difference to form a water curtain with a certain impact force; as the cooling medium is continuously sprayed from the spraying port 223 of the spraying pipe 22, the liquid level of the cooling medium in the spraying cavity 211 is continuously decreased, when the second liquid level sensor 52 detects that the liquid level of the cooling medium in the spraying cavity 211 is in the second threshold range, the second liquid level sensor 52 sends a second electric signal to the controller 60, the controller 60 turns off the inflator 43 and turns on the air pump 44 according to the second electric signal, the air pump 44 discharges the gas in the bag body 421 of the airbag 42 to the outside atmosphere until the gas in the bag body 421 of the airbag 42 is almost completely discharged, and the controller 60 turns off the air pump 44 to reset the bag body 421 of the airbag 42, so that the inflator 43 inflates the bag body 421 of the airbag 42 next time.
Considering that the centrifugal atomizing assembly 30 is a structural member for dispersing the metal solution into a plurality of metal shots in a molten state in the metal shot centrifugal atomizing device 1, in order to enable the rotating disk 31 to rotate at high speed, it is designed that in some embodiments, the centrifugal atomizing assembly 30 further includes a mounting seat 32 and a rotating motor 33. Mounting base 32 is positioned within reservoir chamber 11 and is coupled to chamber bottom wall 112 of the reservoir chamber, and mounting base 32 has a mounting space 321 (an interior hollow region of mounting base 32). The rotary motor 33 is mounted in the mounting space 321, and a rotary shaft of the rotary motor 33 is fixedly connected to the rotary plate 31. In this design, by increasing the rotation speed of the rotary motor 33, the rotary motor 33 rotates to drive the rotary disc 31 connected thereto to rotate at a larger rotation speed, the rotary disc 31 rotating at the larger rotation speed makes the metal solution receive a larger centrifugal force in the rotary disc 31, and the metal solution having the larger centrifugal force can be effectively dispersed into a plurality of metal shots having a smaller diameter in a molten state after passing through the side holes 311 of the rotary disc 31.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. A metal shot centrifugal atomization device is characterized by comprising:
a reservoir having a reservoir cavity extending in a first direction, the reservoir cavity for storing a cooling medium;
the spraying assembly is used for storing cooling media, is arranged in the liquid storage tank and is positioned on one side of the opening of the liquid storage cavity, and is provided with a plurality of spraying ports which are distributed in the first direction in a surrounding manner, and the cooling media stored by the spraying assembly can flow out of the spraying ports to form a water curtain; the spray assembly comprises a spray container and a plurality of spray pipes, the spray container is annular, the annular spray container defines a central axis parallel to or coincident with the first direction, the spray container is provided with a spray cavity for storing the cooling medium, the spray container is also provided with a spray surface arranged facing the cavity bottom wall of the liquid storage cavity, the spray pipes are arranged on the spray surface around the first direction and are communicated with the spray cavity, each spray pipe is provided with a first port far away from one side of the spray surface and a second port close to one side of the spray surface, the first port is used as the spray opening, the second port is closer to the central axis than the first port along the direction perpendicular to the first direction, and an acute angle formed between the extension direction of each spray pipe and the central axis is more than or equal to 15 degrees and less than or equal to 20 degrees; and
the centrifugal atomization assembly is arranged in the liquid storage tank and is positioned between the spraying assembly and the bottom wall of the liquid storage cavity, the centrifugal atomization assembly comprises a rotating disc for storing metal solution, and the rotating disc is provided with a plurality of side holes distributed in the first direction in a surrounding mode;
wherein the rotating disc is configured to rotate around the first direction, so that the metal solution is ejected from the side hole and dispersed into a plurality of metal shots in a molten state, and all the metal shots in the molten state pass through the water curtain and fall into the cooling medium stored in the reservoir cavity to be solidified into a plurality of dispersed metal shots in a solid state.
2. A centrifugal atomizing device for metal pellets as set forth in claim 1, wherein said spray assembly further includes:
one end of the liquid inlet pipeline extends into the liquid storage cavity and is arranged close to the cavity bottom wall of the liquid storage cavity, and the other end of the liquid inlet pipeline is communicated with the spraying container;
and the water suction pump is arranged on the liquid inlet pipeline.
3. A centrifugal atomizing device for metal pellets as set forth in claim 2,
centrifugal atomizing device still includes pressure components, pressure components install in spray components, pressure components configures into and can change spray the atmospheric pressure of intracavity, makes spray the atmospheric pressure of intracavity and external atmospheric pressure and form pressure differential, so that spray the chamber and store coolant is in follow under the effect of pressure differential spray mouthful blowout and form the water curtain.
4. A centrifugal atomizing device for metal pellets as set forth in claim 3,
the pressure assembly comprises a pressure pump, and the pressure pump is arranged on the liquid inlet pipeline.
5. A centrifugal atomizing device for metal pellets as set forth in claim 3, wherein said pressure assembly includes:
the air bag is positioned in the spraying cavity and is connected with the spraying container, and the air bag comprises a bag body, an air inlet communicated with the bag body and an air outlet communicated with the bag body;
the inflator pump is positioned outside the spraying cavity and connected with the spraying container, and an inflation port of the inflator pump is communicated with the air inlet of the air bag; and
and the air pump is positioned outside the spraying cavity and connected with the spraying container, and an air pumping opening of the air pump is communicated with the air outlet of the air bag.
6. A centrifugal atomizing device for metal pellets as set forth in claim 5, further comprising:
the first liquid level sensor is arranged on the spraying container and used for detecting the liquid level of the cooling medium in the spraying cavity;
the second liquid level sensor is arranged on the spraying container and used for detecting the liquid level of the cooling medium in the spraying cavity; and
a controller electrically connected to the first level sensor and the second level sensor;
when the first liquid level sensor detects that the liquid level of the cooling medium in the spraying cavity is within a first threshold range, the controller turns on the inflator pump to inflate the airbag body with air;
when the second liquid level sensor detects that the liquid level of the cooling medium in the spraying cavity is within a second threshold range, the controller closes the inflator pump and opens the air pump, so that the inflator pump stops inflating the bag body and pumps out the gas in the bag body.
7. A centrifugal atomizing device for metal pellets according to any one of claims 1 to 6, wherein said centrifugal atomizing assembly further comprises:
the mounting seat is positioned in the liquid storage cavity and connected with the cavity bottom wall of the liquid storage cavity, and the mounting seat is provided with a mounting space;
and the rotating motor is arranged in the installation space, and a rotating shaft of the rotating motor is fixedly connected with the rotating disk.
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| CN202211284397.2A CN115350645B (en) | 2022-10-20 | 2022-10-20 | Metal shot centrifugal atomization device |
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| CN202211284397.2A CN115350645B (en) | 2022-10-20 | 2022-10-20 | Metal shot centrifugal atomization device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3868492A1 (en) * | 2020-02-20 | 2021-08-25 | Kolon Industries, Inc. | Spray nozzle and metal powder manufacturing apparatus including same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB785290A (en) * | 1952-12-06 | 1957-10-23 | Moossche Eisenwerke Ag | Improvements in a process and apparatus for the production of iron granules |
| SU606684A1 (en) * | 1974-09-05 | 1978-05-15 | Всесоюзный Научно-Исследовательский Проектно-Технологический Институт Горного Машиностроения | Method of obtaining shot from melt |
| CN101612666B (en) * | 2009-06-15 | 2011-07-20 | 连云港倍特超微粉有限公司 | Alloy steel shot preparation method and device therefor |
| CN104493188B (en) * | 2015-01-04 | 2016-07-06 | 多棱新材料股份有限公司 | Shot-peening produces equipment and production technology thereof with steel ball |
| CN110170658B (en) * | 2019-06-06 | 2022-05-27 | 厦门三和超道智能科技有限公司 | Steel shot production equipment and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3868492A1 (en) * | 2020-02-20 | 2021-08-25 | Kolon Industries, Inc. | Spray nozzle and metal powder manufacturing apparatus including same |
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