Metal powder recovery device and water atomization metal powder production equipment

Abstract

The utility model provides a metal powder recovery device and water atomization metal powder production equipment. Material liquid generated in the water atomization metal powder dehydration process is material liquid, the material liquid flows into the first collision cavity through the water inlet pipe, the barrel is in a circular shape, the material liquid flows in the collision cavity in a spiral-flow mode, the material liquid collides with the upper enclosure piece, the lower enclosure piece and the inner wall of the barrel back and forth in the collision cavity, and the material liquid flows into the second collision cavity through the water inlet pipe. Metal powder in the material liquid loses kinetic energy and is settled into the settling cavity, and the material liquid alternately circulates in the first collision cavity, the second collision cavity, the third collision cavity and the fourth collision cavity through the first flow passing channel or the second flow passing channel in the first liquid flow direction, so that the material liquid forms a'sine curve 'flowing path; in this way, the material liquid can fully collide and make contact with the upper fence piece, the lower fence piece and the barrel, metal powder in the material liquid is settled at the bottom of the settling cavity after losing kinetic energy, and the recovery rate of the metal powder is increased.

Description

Technical Field

[0001] The present disclosure relates to the field of metal powder recovery, and in particular to a metal powder recovery device and water atomization metal powder production equipment. Background Art

[0002] Water atomization is a method of directly breaking liquid metal or alloy into fine droplets under the action of external force, and quickly condensing to obtain powder. Compared with mechanical crushing, water atomization is a simpler and more economical method of powder production. The atomization process converts kinetic energy into the surface energy of the metal melt.

[0003] However, overflow water will be generated during the dehydration process of water atomized metal powder. The overflow water contains metal powder. The traditional treatment method is to manually collect the overflow water and filter it. Although some metal powder can be filtered and recovered, due to the fine particles of the metal powder, some metal powder in the filtered water cannot be filtered out. If the filtered water is discharged, it will not only pollute the environment, but also waste water resources and metal powder resources.

[0004] Therefore, how to recycle the water resources and metal resources of overflow water is an urgent problem that needs to be solved. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a metal powder recovery device and a water atomization metal powder production device that can recover metal powder and realize the recycling of water resources.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A metal powder recovery device, comprising:

[0008] A cylinder body, wherein the cylinder body is formed with a receiving cavity;

[0009] A conical box body, the conical box body is connected to the bottom of the cylinder body, the conical box body forms a sedimentation chamber, and the sedimentation chamber is communicated with the accommodating chamber;

[0010] An upper enclosure member, the upper enclosure member is located in the accommodating cavity, and both ends of the upper enclosure member are extended and connected to the inner wall of the cylinder;

[0011] A lower enclosure member, wherein the lower enclosure member is located in the accommodating chamber, both ends of the lower enclosure member are extended and connected to the inner wall of the cylinder, and the upper enclosure member is staggeredly connected with the lower enclosure member to separate the accommodating chamber into a first collision chamber, a second collision chamber, a third collision chamber and a fourth collision chamber which are sequentially arranged along the first liquid flow direction, and the first collision chamber, the second collision chamber, the third collision chamber and the fourth collision chamber are all connected to the sedimentation chamber;

[0012] The water inlet pipe, and the water inlet pipe is communicated with the first collision chamber;

[0013] The water outlet pipe, and the water outlet pipe is communicated with the fourth collision chamber;

[0014] The top of the upper baffle is higher than the top of the lower baffle in the vertical direction, the bottom of the upper baffle is higher than the bottom of the lower baffle in the vertical direction, a first flow passage is formed between the top of the lower baffle and the top of the cylinder body, and a second flow passage is formed between the bottom of the upper baffle and the bottom of the lower baffle;

[0015] The liquids in the first collision chamber and the third collision chamber respectively flow to the second collision chamber and the fourth collision chamber through the first flow passage; the liquids in the second collision chamber and the fourth collision chamber respectively flow to the third collision chamber and the first collision chamber through the second flow passage.

[0016] In one embodiment, the metal powder recovery device further includes an annular baffle, the annular baffle is located in the accommodation cavity, and the annular baffle is respectively connected with the upper baffle and the lower baffle;

[0017] The annular baffle divides the first collision chamber into a first collision inner cavity and a first collision outer cavity in sequence from inside to outside along the radial direction of the cylinder body;

[0018] The annular baffle divides the second collision chamber into a second collision inner cavity and a second collision outer cavity in sequence from inside to outside along the radial direction of the cylinder body;

[0019] The annular baffle divides the third collision chamber into a third collision inner cavity and a third collision outer cavity in sequence from inside to outside along the radial direction of the cylinder body;

[0020] The annular baffle divides the fourth collision chamber into a fourth collision inner cavity and a fourth collision outer cavity in sequence from inside to outside along the radial direction of the cylinder body;

[0021] The liquid flow direction of the first collision inner cavity is the first liquid flow direction, and the liquid flow direction of the fourth collision outer cavity is the second liquid flow direction;

[0022] A flow port is formed on the annular baffle located in the fourth collision chamber, and the liquid in the fourth collision inner cavity flows to the fourth collision outer cavity through the flow port.

[0023] In one embodiment, the number of the annular baffles is multiple, and the multiple annular baffles are sequentially arranged at intervals in the direction of the inner wall of the cylinder body with the center of the cylinder body as the center.

[0024] In one embodiment, the center line of the annular retaining member is coaxially arranged with the center line of the cylinder body.

[0025] In one embodiment, the top of the annular retaining member extends to the top of the cylinder body, and the bottom of the annular retaining member extends to the bottom of the lower retaining member.

[0026] In one embodiment, one end of the water outlet pipe is fixed on the annular retaining member, the other end of the water outlet pipe extends to the outside of the cylinder body, and a water outlet is formed at the top of the water outlet pipe.

[0027] In one embodiment, the metal powder recovery device further includes a backflush water washing assembly, the backflush water washing assembly includes a backflush water washing ring, a backflush water through pipe and a plurality of fixing plates. The backflush water washing ring is arranged on the inner wall of the cylinder body. A plurality of spray holes are arranged at intervals at the bottom end of the backflush water washing ring. One end of the backflush water through pipe is arranged on the backflush water washing ring, and the backflush water through pipe is respectively communicated with the plurality of spray holes. The other end of the backflush water through pipe extends to the top of the cylinder body. One end of each fixing plate is welded to the inner wall of the conical box body, and the other end of each fixing plate is welded to the annular retaining member. The backflush water washing ring is respectively abutted against the plurality of fixing plates, and each fixing plate is located between two adjacent spray holes.

[0028] In one embodiment, the ultrafine metal powder recovery device further includes a central circular pipe, the central circular pipe is located at the center of the accommodation cavity, and the central circular pipe is respectively connected to the upper retaining member and the lower retaining member.

[0029] In one embodiment, a metal powder outlet pipe is opened at the bottom of the conical box body.

[0030] In one embodiment, the ultrafine metal powder recovery device further includes a support frame and a plurality of support columns. The support frame is respectively connected to the inner wall of the conical box body and the bottom of the central circular pipe, and each support column is respectively connected to the support frame and the annular retaining member.

[0031] In one embodiment, the ultrafine metal powder recovery device further includes a fixing frame, and the fixing frame is connected to the conical box body.

[0032] A water atomized metal powder production device includes the metal powder recovery device according to any one of the above embodiments.

[0033] Compared with the prior art, the present disclosure has at least the following advantages:

[0034] 1. The material liquid generated during the dehydration process of water-atomized metal powder is the material liquid. The material liquid flows into the first collision chamber through the water inlet pipe, and the accommodation chamber communicates with the precipitation chamber. That is, the bottoms of the first collision chamber, the second collision chamber, the third collision chamber, and the fourth collision chamber are interconnected through the precipitation chamber. Since the cylinder body is circular, the material liquid has a swirling flow direction in the collision chamber. The material liquid collides back and forth with the upper baffle, the lower baffle, and the inner wall of the cylinder body in the collision chamber, causing the metal powder in the material liquid to lose kinetic energy and settle into the precipitation chamber. The material liquid alternately flows through the first flow channel or the second flow channel in the first collision chamber, the second collision chamber, the third collision chamber, and the fourth collision chamber along the first liquid flow direction, forming a "sine curve" flow path for the material liquid. In this way, the material liquid can fully collide and contact with the upper baffle, the lower baffle, and the cylinder body, enabling the metal powder in the material liquid to lose kinetic energy and settle at the bottom of the precipitation chamber, thereby improving the recovery rate of the metal powder.

[0035] 2. After passing through the "sine curve" flow path, the material liquid is stratified into an upper layer liquid and a lower layer metal powder concentrated slurry. At this time, the upper layer liquid without metal powder in the fourth collision chamber can flow back to the previous process through the water outlet pipe for recycling, realizing the recycling of water resources. At the same time, the lower layer metal powder concentrated slurry located in the precipitation chamber can also be sent back to the previous process for water-atomized metal powder dehydration treatment, avoiding the waste of metal powder resources and improving the yield of metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a top view of the structure when the number of annular baffle members in the metal powder recovery device is 0;

[0038] Figure 2 It is a top view of the structure when the number of annular baffle members in the metal powder recovery device is 1;

[0039] Figure 3 For Figure 2 It is a schematic structural diagram of the metal powder recovery device shown;

[0040] Figure 4 For Figure 2 It is a schematic structural diagram of another perspective of the metal powder recovery device shown;

[0041] Figure 5Top view of the structure when the number of annular enclosures in the metal powder recovery device is 2;

[0042] Figure 6 is Figure 5 Schematic structural diagram of the metal powder recovery device shown;

[0043] Figure 7 is Figure 5 Schematic structural diagram of another perspective of the metal powder recovery device shown;

[0044] Figure 8 Schematic structural diagram of the backwash water washing ring in the metal powder recovery device;

[0045] Description of the drawings: Metal powder recovery device (10); Cylindrical body (100); Accommodation cavity (101); First collision cavity (102); First inner collision cavity (1021); First outer collision cavity (1022); Second collision cavity (103); Second inner collision cavity (1031); Second outer collision cavity (1032); Third collision cavity (104); Third inner collision cavity (1041); Third outer collision cavity (1042); Fourth collision cavity (105); Fourth inner collision cavity (1051); Fourth outer collision cavity (1052); First flow channel (106); Flow port (107); First liquid flow direction (110); Second liquid flow direction (120); Conical box body (200); Precipitation cavity (201); Second flow channel (202); Metal powder outlet pipe (203); Upper enclosure (300); Lower enclosure (400); Water inlet pipe (500); Water outlet pipe (600); Water outlet (601); Annular enclosure (700); Backwash water washing assembly (800); Backwash water washing ring (810); Spraying holes (8101); Backwash water through pipe (820); Fixed plate (830); Central circular pipe (900); Support frame (1000); Support column (1100); Fixed frame (1200). Detailed implementation manners

[0046] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present disclosure more thorough and comprehensive.

[0047] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this disclosure pertains. The terms used in the specification of this disclosure herein are for the purpose of describing specific implementations only and are not intended to limit this disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0049] Please refer to Figures 1 to 8 , for a better understanding of the metal powder recovery device 10 of this disclosure, the following further explains the metal powder recovery device 10:

[0050] The metal powder recovery device 10 of one embodiment includes a cylinder 100, a conical box 200, an upper enclosure 300, a lower enclosure 400, a water inlet pipe 500 and a water outlet pipe 600. The cylinder 100 is formed with a receiving chamber 101. The conical box 200 is connected to the bottom of the cylinder 100, and the conical box 200 is formed with a sedimentation chamber 201. The upper enclosure 300 is located in the receiving chamber 101, and both ends of the upper enclosure 300 are extended and connected to the inner wall of the cylinder 100. The lower enclosure 400 is located in the accommodating chamber 101, and both ends of the lower enclosure 400 are extended and connected to the inner wall of the cylinder 100. The upper enclosure 300 is staggeredly connected with the lower enclosure 400 to divide the accommodating chamber 101 into a first collision chamber 102, a second collision chamber 103, a third collision chamber 104 and a fourth collision chamber 105 arranged in sequence along the first liquid flow direction 110. The first collision chamber 102, the second collision chamber 103, the third collision chamber 104 and the fourth collision chamber 105 are all connected to the sedimentation chamber 201. The water inlet pipe 500 is connected to the first collision chamber 102. The water outlet pipe 600 is connected to the fourth collision chamber 105. The top of the upper enclosure 300 is higher than the top of the lower enclosure 400 in the vertical direction, and the bottom of the upper enclosure 300 is higher than the bottom of the lower enclosure 400 in the vertical direction. A first flow passage 106 is formed between the top of the lower enclosure 400 and the top of the cylinder 100, and a second flow passage 202 is formed between the bottom of the upper enclosure 300 and the bottom of the lower enclosure 400. The liquid in the first collision chamber 102 and the third collision chamber 104 flows to the second collision chamber 103 and the fourth collision chamber 105 through the first flow passage 106 respectively; the liquid in the second collision chamber 103 and the fourth collision chamber 105 flows to the third collision chamber 104 and the first collision chamber 102 through the second flow passage 202 respectively.

[0051] In this embodiment, the material liquid is generated during the dehydration process of the water atomized metal powder. The material liquid flows into the first collision chamber 102 through the water inlet pipe 500, and the accommodation chamber 101 communicates with the precipitation chamber 201, that is, the bottoms of the first collision chamber 102, the second collision chamber 103, the third collision chamber 104, and the fourth collision chamber 105 are interconnected through the precipitation chamber 201. Since the cylinder 100 is circular in shape, the material liquid has a swirling flow direction in the collision chamber. The material liquid collides back and forth with the upper baffle member 300, the lower baffle member 400, and the inner wall of the cylinder 100 in the collision chamber, causing the metal powder in the material liquid to lose kinetic energy and settle into the precipitation chamber 201. The material liquid alternately flows through the first flow channel 106 or the second flow channel 202 along the first liquid flow direction 110 in the first collision chamber 102, the second collision chamber 103, the third collision chamber 104, and the fourth collision chamber 105, forming a "sine curve" flow path. In this way, the material liquid can fully collide and contact with the upper baffle member 300, the lower baffle member 400, and the cylinder 100, causing the metal powder in the material liquid to lose kinetic energy and settle at the bottom of the precipitation chamber 201, thereby improving the recovery rate of the metal powder.

[0052] Furthermore, after passing through the "sine curve" flow path, the material liquid is stratified into an upper liquid and a lower metal powder concentrated slurry. At this time, the upper liquid without metal powder in the fourth collision chamber 105 can flow back to the previous process through the water outlet pipe 600 for recycling, realizing the recycling of water resources. At the same time, the lower metal powder concentrated slurry located in the precipitation chamber 201 can also be sent back to the previous process for water atomized metal powder dehydration treatment, avoiding the waste of metal powder resources and improving the yield of metal powder.

[0053] It should be noted that the flow direction of the first liquid flow direction 110 is specifically as follows: the material liquid is first input into the first collision chamber 102 through the water inlet pipe 500, and then flows into the second collision chamber 103 through the first flow channel 106. Since the material liquid is continuously input, under the push of the water flow, the material liquid flows into the third collision chamber 104 through the second flow channel 202, and then flows into the fourth collision chamber 105 through the first flow channel 106, forming a "sine curve" flow path, which can maximize the flow of the material liquid, enabling the metal powder in the material liquid to fully contact and collide with the upper baffle member 300, the lower baffle member 400, and the cylinder 100, so that the metal powder in the material liquid loses kinetic energy and settles at the bottom of the precipitation chamber 201, improving the recovery rate of the metal powder.

[0054] Further, although the material liquid is input from the first collision chamber 102, it will also fill the second collision chamber 103, the third collision chamber 104, and the fourth collision chamber 105, so that a swirling flow is formed in each collision chamber, causing the material liquid to continuously contact and collide with the cylinder body 100, the upper retaining member 300, and the lower retaining member 400. However, the material liquid is continuously input and will fill each collision chamber. In this embodiment, the first liquid flow direction 110 of the material liquid refers to the flow direction of the material liquid in the first collision chamber 102, so that the suspension of the material liquid in the first collision chamber 102 can flow along the maximum precipitation path, ensuring that the metal powder in the material liquid can fully settle at the bottom of the precipitation chamber 201.

[0055] It should be supplemented that the vertical direction here refers to the direction of gravity, that is, the vertically downward direction, and the top of the upper retaining member 300 is flush with the top of the cylinder body 100.

[0056] As Figures 2 to 4 shown, in one embodiment, the metal powder recovery device 10 further includes an annular retaining member 700. The annular retaining member 700 is located in the accommodation chamber 101 and is respectively connected to the upper retaining member 300 and the lower retaining member 400. The annular retaining member 700 divides the first collision chamber 102 into a first collision inner chamber 1021 and a first collision outer chamber 1022 in sequence from the inside to the outside along the radial direction of the cylinder body 100. The annular retaining member 700 divides the second collision chamber 103 into a second collision inner chamber 1031 and a second collision outer chamber 1032 in sequence from the inside to the outside along the radial direction of the cylinder body 100. The annular retaining member 700 divides the third collision chamber 104 into a third collision inner chamber 1041 and a third collision outer chamber 1042 in sequence from the inside to the outside along the radial direction of the cylinder body 100. The annular retaining member 700 divides the fourth collision chamber 105 into a fourth collision inner chamber 1051 and a fourth collision outer chamber 1052 in sequence from the inside to the outside along the radial direction of the cylinder body 100. The water inlet pipe 500 is communicated with the first collision inner chamber 1021. The water outlet pipe 600 is communicated with the first collision outer chamber 1022. The liquid flow direction of the first collision inner chamber 1021 is the first liquid flow direction 110, and the liquid flow direction of the fourth collision outer chamber 1052 is the second liquid flow direction 120. An overflow port 107 is provided on the annular retaining member 700 located in the fourth collision chamber 105, and the liquid in the fourth collision inner chamber 1051 flows to the fourth collision outer chamber 1052 through the overflow port 107.

[0057] It should be noted that in this embodiment, a flow cycle of the material liquid is a circular "sine curve" flow path. By providing the annular baffle member 700, the material liquid flows for two cycles, so that the material liquid can fully contact and collide with the upper baffle member 300, the lower baffle member 400, the annular baffle member 700 and the cylinder 100, further improving the recovery rate of metal powder. Specifically, the material liquid first enters the first collision inner cavity 1021 through the water inlet pipe 500, and then flows into the second collision inner cavity 1031 through the first flow channel 106. Since the material liquid is continuously input, under the push of the water flow, the material liquid flows into the third collision inner cavity 1041 through the second flow channel 202, and then flows into the fourth collision inner cavity 1051 through the first flow channel 106. At this time, the material liquid flows along the first liquid flow direction 110 for a circular "sine curve" flow path. Then the material liquid flows into the fourth collision outer cavity 1052 through the flow port 107, and flows into the third collision outer cavity 1042 through the first flow channel 106. Under the push of the water flow, the material liquid flows into the second collision outer cavity 1032 through the second flow channel 202, and then flows into the first collision outer cavity 1022 through the first flow channel 106. At this time, the material liquid flows along the second liquid flow direction 120 for another circular "sine curve" flow path. In this way, the flow path of the material liquid is maximized, so that the ultrafine powder in the material liquid can fully contact and collide with the upper baffle member 300, the lower baffle member 400 and the cylinder 100. The metal powder settles at the bottom of the precipitation cavity 201, forming a lower-layer metal powder concentrated slurry at the bottom of the precipitation cavity 201 and can flow back to the previous process for water atomized metal powder dehydration treatment, avoiding the waste of metal powder resources, improving the yield of metal powder, and the upper layer liquid flowing out of the first collision outer cavity 1022 can flow back to the previous process for recycling. In this way, water resource recycling and full recovery and utilization of metal powder can be realized.

[0058] It should be added that the first liquid flow direction 110 and the second liquid flow direction 120 are arranged in opposite directions. The upper baffle member 300 can be passed through the avoidance welding groove on the annular baffle member 700 and welded to the annular baffle member 700, or the upper baffle member 300 is divided into two baffle plates and welded to the annular baffle member 700, the cylinder 100 and the lower baffle member 400 respectively. Similarly, the lower baffle member 400 can be passed through the avoidance welding groove on the annular baffle member 700 and welded to the annular baffle member 700, or the lower baffle member 400 is divided into two baffle plates and welded to the annular baffle member 700, the cylinder 100 and the upper baffle member 300 respectively.

[0059] Please refer to Figures 5 to 7, in one embodiment, the number of the annular retaining members 700 is multiple, and the multiple annular retaining members 700 are sequentially arranged at intervals in the direction from the center of the cylinder 100 to the inner wall of the cylinder 100. It can be understood that by setting multiple annular retaining members 700, the material liquid passes through multiple circumferential "sine curve" flow paths, and the annular retaining members 700 can be set according to actual production requirements, so as to maximize the recovery of metal powder in the material liquid and realize the recycling of water resources and the full utilization of metal powder.

[0060] Furthermore, the multiple annular retaining members 700 are sequentially arranged at intervals in the direction from the center of the cylinder 100 to the inner wall of the cylinder 100, and at the same time, the second flow passage 202 is divided into several parts, and the height values of the multiple second flow passages 202 decrease sequentially in the direction from the center of the cylinder 100 to the inner wall of the cylinder 100, ensuring that the metal powder at the center of the cylinder 100 can fully contact and collide with the upper retaining member 300, the lower retaining member 400 and the annular retaining member 700, so that most of the metal powder settles at the bottom of the center of the precipitation chamber 201, and the residual metal powder on the conical surface of the precipitation chamber 201 is reduced, facilitating the recycling and reuse of the metal powder.

[0061] As Figure 2 shown, in one embodiment, the center line of the annular retaining member 700 is coaxially arranged with the center line of the cylinder 100, that is, the annular retaining member 700 and the cylinder 100 form a concentric circle structure, so that each collision chamber is relatively evenly separated in the same liquid flow direction, enabling the material liquid to form a swirl in each collision chamber, and enabling the metal powder in the material liquid to fully contact and collide with the cylinder 100, the upper retaining member 300, the lower retaining member 400 and the annular retaining member 700, thus improving the recovery rate of metal powder.

[0062] As Figure 2 and Figure 3 shown, in one embodiment, the top of the annular retaining member 700 extends to the top of the cylinder 100, and the bottom of the annular retaining member 700 extends to the bottom of the lower retaining member 400. It can be understood that this can ensure that the metal powder is fully contacted and collided, so that the metal powder can settle in the precipitation chamber.

[0063] As Figure 2 shown, in one embodiment, one end of the water outlet pipe 600 is fixed on the annular retaining member 700, the other end of the water outlet pipe 600 extends to the outside of the cylinder 100, and a water outlet 601 is formed at the top of the water outlet pipe 600. It can be understood that water is discharged through the water outlet 601 at the top of the water outlet pipe 600, and the clear water at the top of the termination chamber 102b does not contain metal powder, enabling the clear water at the top of the termination chamber 102b to be recycled and reused, realizing the reuse of water resources.

[0064] It should be noted that the water outlet pipe 600 is welded to the annular baffle member 700 and the cylinder body 100.

[0065] It should be supplemented that according to the different numbers of the annular baffle members 700, the positions of the water outlet pipes 600 also change accordingly to ensure that the material liquid has the maximum precipitation flow path.

[0066] As Figure 3 shown, in one embodiment, the metal powder recovery device 10 further includes a backflush water washing assembly 800. The backflush water washing assembly 800 includes a backflush water washing ring 810, a backflush water through pipe 820 and a plurality of fixing plates 830. The backflush water washing ring 810 is arranged on the inner wall of the cylinder body 100. A plurality of spray holes 8101 are arranged at intervals at the bottom end of the backflush water washing ring 810. One end of the backflush water through pipe 820 is arranged on the backflush water washing ring 810. The backflush water through pipe 820 is respectively communicated with a plurality of spray holes 8101. The other end of the backflush water through pipe 820 extends to the top of the cylinder body 100. One end of each fixing plate 830 is welded to the inner wall of the conical box body 200, and the other end of each fixing plate 830 is welded to the annular baffle member 700. The backflush water washing ring 810 is respectively abutted against a plurality of fixing plates 830. Each fixing plate 830 is located between two adjacent spray holes 8101.

[0067] It can be understood that since the precipitated metal powder will adhere to the conical surface of the precipitation chamber 201, the high-pressure water flows into the backflush water washing ring 810 through the backflush water through pipe 820, and then sprays out through a plurality of spray holes 8101 of the backflush water washing ring 810 and acts on the conical surface of the precipitation chamber 201 to wash the metal powder adhering to the conical surface of the precipitation chamber 201 to the bottom of the precipitation chamber 201, further improving the recovery rate of the metal powder.

[0068] It should be noted that the fixing plate 830 is arranged between two adjacent spray holes 8101 and will not interfere with the spraying of the spray holes 8101.

[0069] As Figure 2 and Figure 3 shown, in one embodiment, the metal powder recovery device 10 further includes a central circular pipe 900. The central circular pipe 900 is located at the center of the accommodation chamber 101. The central circular pipe 900 is respectively connected to the upper baffle member 300 and the lower baffle member 400. It can be understood that through the central circular pipe 900, the annular baffle member 700 and the cylinder body 100, the material liquid forms a swirl, enabling the material liquid to maximize the flow path and further improving the recovery rate of the metal powder.

[0070] As Figure 3As shown, in one embodiment, a metal powder outlet pipe 203 is provided at the bottom of the conical box body 200. It can be understood that the concentrated slurry of the lower-layer metal powder located in the precipitation chamber 201 is refluxed to the previous process through the metal powder outlet pipe 203 for dehydration treatment of the water atomized metal powder, avoiding waste of metal powder resources and improving the yield of metal powder.

[0071] As Figure 3 shown, in one embodiment, the metal powder recovery device 10 further includes a support frame 1000 and a plurality of support columns 1100. The support frame 1000 is respectively connected to the inner wall of the conical box body 200 and the bottom of the central circular pipe 900, and each support column 1100 is respectively connected to the support frame 1000 and the annular enclosure 700. It can be understood that the structural strength of the recovery device is increased by the support columns 1100 and the support frame 1000. In this embodiment, the support frame 1000 is a cross-shaped support frame.

[0072] As Figure 3 shown, in one embodiment, the metal powder recovery device 10 further includes a fixing frame 1200, and the fixing frame 1200 is connected to the conical box body 200. It can be understood that the fixing frame 1200 is used to fix the conical box body 200 so that it can be placed stably on the ground.

[0073] Please refer to Figure 2 and Figure 3 , in one embodiment, when the number of the annular enclosures 700 is one, the working process of the metal powder recovery device 10 is as follows:

[0074] 1. The material liquid generated in the front-end water atomized metal powder dehydration process is the material liquid. The material liquid is input into the first collision inner cavity 1021 through the water inlet pipe 500, and the material liquid will also fill the first collision outer cavity 1022, the second collision inner cavity 1031, the second collision outer cavity 1032, the third collision inner cavity 1041, the third collision outer cavity 1042, the fourth collision inner cavity 1051 and the fourth collision outer cavity 1052.

[0075] 2. When the water level in the first collision inner cavity 1021 is flush with the top of the lower baffle 300, the flow path of the material liquid from the water inlet pipe 500 to the water outlet pipe 600 is as follows: The material liquid flows through the water inlet pipe 500, the first collision inner cavity 1021, the first flow channel 106, the second collision inner cavity 1031, the second flow channel 202, the third collision inner cavity 1041, the first flow channel 106, and the fourth collision inner cavity 1051 in sequence along the first liquid flow direction 110, so that the material liquid completes a cycle of "sine curve" swirling flow path. Then the material liquid flows into the fourth collision outer cavity 1052 through the flow port 107. The material liquid flows through the fourth collision outer cavity 1052, the first flow channel 106, the third collision outer cavity 1042, the second flow channel 202, the second collision outer cavity 1032, the first flow channel 106, the first collision outer cavity 1022, and the water outlet pipe 600 in sequence along the second liquid flow direction, so that the material liquid completes another cycle of "sine curve" swirling flow path. Among them, the functions of setting the first flow channel 106, the second flow channel 202, and the flow port 107 are to guide the liquid flow direction. When the material liquid flows into each collision cavity, it will contact and collide with the cylinder body 100, the upper baffle 300, the lower baffle 400, and the annular baffle 700, so that the metal powder in the material liquid loses kinetic energy and settles at the bottom of the precipitation cavity 201.

[0076] 3. After the material liquid passes through two cycles of "sine curve" swirling flow path, it is stratified into an upper layer liquid and a lower layer metal powder concentrated slurry in the device. The upper layer liquid can overflow and be discharged through the water outlet pipe 600, and the lower layer metal powder concentrated slurry can be discharged from the metal powder outlet pipe 203.

[0077] The present disclosure also provides a water atomized metal powder production device, including the metal powder recovery device described in any one of the above embodiments.

[0078] In this embodiment, through the metal powder recovery device, the material liquid without metal powder and the metal powder concentrated slurry can be recovered, realizing the recycling of water resources and the full utilization of metal powder, thereby reducing the production cost of the water atomized metal powder production device and improving the yield of metal powder.

[0079] Compared with the prior art, the present disclosure has at least the following advantages:

[0080] 1. The material liquid generated during the dehydration process of the water-atomized metal powder is the material liquid. The material liquid flows into the first collision chamber 102 through the water inlet pipe 500, and the accommodation chamber 101 communicates with the precipitation chamber 201. That is, the bottoms of the first collision chamber 102, the second collision chamber 103, the third collision chamber 104, and the fourth collision chamber 105 are interconnected through the precipitation chamber 201. Since the cylinder 100 is circular, the flow direction of the material liquid in the collision chamber is a swirling flow. The material liquid collides back and forth with the upper baffle member 300, the lower baffle member 400, and the inner wall of the cylinder 100 in the collision chamber, causing the metal powder in the material liquid to lose kinetic energy and settle into the precipitation chamber 201. The material liquid alternately flows through the first flow channel 106 or the second flow channel 202 in the first collision chamber 102, the second collision chamber 103, the third collision chamber 104, and the fourth collision chamber 105 along the first liquid flow direction 110, forming a "sine curve" flow path for the material liquid. In this way, the material liquid can fully collide and contact with the upper baffle member 300, the lower baffle member 400, and the cylinder 100, causing the metal powder in the material liquid to lose kinetic energy and settle at the bottom of the precipitation chamber 201, improving the recovery rate of the metal powder.

[0081] 2. After passing through the "sine curve" flow path, the material liquid is stratified into an upper layer liquid and a lower layer metal powder concentrated slurry. At this time, the upper layer liquid without metal powder in the fourth collision chamber 105 can flow back to the previous process through the water outlet pipe 600 for recycling, realizing the recycling of water resources. At the same time, the lower layer metal powder concentrated slurry located in the precipitation chamber 201 can also be sent back to the previous process for water-atomized metal powder dehydration treatment, avoiding the waste of metal powder resources and improving the yield of metal powder.

[0082] The above embodiments only represent several implementation manners of the present disclosure. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the disclosed patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several deformations and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. A metal powder recovery device (10), characterized in that: include: A cylinder (100), wherein the cylinder (100) is formed with a receiving cavity (101); A conical box (200), the conical box (200) being connected to the bottom of the cylinder (100), the conical box (200) being formed with a sedimentation chamber (201), the sedimentation chamber (201) being communicated with the accommodating chamber (101); An upper enclosure member (300), the upper enclosure member (300) being located in the accommodating cavity (101), and both ends of the upper enclosure member (300) extending and connected to the inner wall of the cylinder (100); a lower enclosure (400), the lower enclosure (400) being located in the accommodating chamber (101), both ends of the lower enclosure (400) extending and connected to the inner wall of the cylinder (100), the upper enclosure (300) being staggeredly connected with the lower enclosure (400) to separate the accommodating chamber (101) into a first collision chamber (102), a second collision chamber (103), a third collision chamber (104) and a fourth collision chamber (105) which are sequentially arranged along the first liquid flow direction (110); a water inlet pipe (500), the water inlet pipe (500) being in communication with the first collision chamber (102); a water outlet pipe (600), the water outlet pipe (600) being in communication with the fourth collision chamber (105); The top of the upper enclosure (300) is higher than the top of the lower enclosure (400) in the vertical direction, and the bottom of the upper enclosure (300) is higher than the bottom of the lower enclosure (400) in the vertical direction. A first flow passage (106) is formed between the top of the lower enclosure (400) and the top of the cylinder (100), and a second flow passage (202) is formed between the bottom of the upper enclosure (300) and the bottom of the lower enclosure (400); The liquid in the first collision chamber (102) and the third collision chamber (104) flows to the second collision chamber (103) and the fourth collision chamber (105) respectively through the first flow passage (106); the liquid in the second collision chamber (103) and the fourth collision chamber (105) flows to the third collision chamber (104) and the first collision chamber (102) respectively through the second flow passage (202).

2. The metal powder recovery device (10) according to claim 1, characterized in that: It also includes an annular enclosure (700), the annular enclosure (700) is located in the accommodating cavity (101), and the annular enclosure (700) is connected to the upper enclosure (300) and the lower enclosure (400) respectively; The annular enclosure (700) divides the first collision chamber (102) into a first collision inner chamber (1021) and a first collision outer chamber (1022) in sequence from inside to outside along the radial direction of the cylinder (100); The annular enclosure (700) divides the second collision chamber (103) into a second collision inner chamber (1031) and a second collision outer chamber (1032) in sequence from inside to outside along the radial direction of the cylinder (100); The annular enclosure (700) divides the third collision chamber (104) into a third collision inner chamber (1041) and a third collision outer chamber (1042) in sequence from inside to outside along the radial direction of the cylinder (100); The annular enclosure (700) divides the fourth collision chamber (105) into a fourth collision inner chamber (1051) and a fourth collision outer chamber (1052) in sequence from inside to outside along the radial direction of the cylinder (100); The water inlet pipe (500) is in communication with the first collision inner cavity (1021); The water outlet pipe (600) is in communication with the first collision outer cavity (1022); The liquid flow direction of the first collision inner cavity (1021) is a first liquid flow direction (110), and the liquid flow direction of the fourth collision outer cavity (1052) is a second liquid flow direction (120); The annular enclosure (700) located in the fourth collision chamber (105) is provided with a flow port (107), and the liquid in the fourth collision inner chamber (1051) flows to the fourth collision outer chamber (1052) through the flow port (107).

3. The metal powder recovery device (10) according to claim 2, characterized in that: The number of the annular enclosure members (700) is plural, and the plurality of annular enclosure members (700) are arranged in sequence and spaced apart from each other in a direction toward the inner wall of the cylinder (100) with the center of the cylinder (100) as the center.

4. The metal powder recovery device (10) according to any one of claims 2 to 3, characterized in that: The top of the annular enclosure (700) extends to the top of the cylinder (100), and the bottom of the annular enclosure (700) extends at least to the bottom of the lower enclosure (400).

5. The metal powder recovery device (10) according to any one of claims 2 to 3, characterized in that: One end of the water outlet pipe (600) is fixed on the annular enclosure (700), and the other end of the water outlet pipe (600) extends to the outside of the cylinder (100). A water outlet (601) is formed at the top of the water outlet pipe (600).

6. The metal powder recovery device (10) according to any one of claims 2 to 3, characterized in that: The invention also comprises a backwashing water washing component (800), wherein the backwashing water washing component (800) comprises a backwashing water washing ring (810), a backwashing water pipe (820) and a plurality of fixing plates (830), wherein the backwashing water washing ring (810) is arranged on the inner wall of the cylinder (100), and a plurality of water spray holes (8101) arranged at intervals are opened at the bottom end of the backwashing water washing ring (810), and one end of the backwashing water pipe (820) is arranged on the backwashing water washing ring (810), and the backwashing water pipe (820) is respectively connected to the plurality of fixing plates (830). The backwash water washing ring (810) is connected to the water spray hole (8101), the other end of the backwash water pipe (820) extends to the top of the cylinder (100), one end of each of the fixed plates (830) is welded to the inner wall of the cylinder (100), and the other end of each of the fixed plates (830) is welded to the annular enclosure (700), and the backwash water washing ring (810) is respectively abutted against a plurality of the fixed plates (830), and each of the fixed plates (830) is located between two adjacent water spray holes (8101).

7. The metal powder recovery device (10) according to any one of claims 1 to 3, characterized in that: It also includes a central circular tube (900), which is located at the center of the accommodating cavity (101), and the central circular tube (900) is connected to the upper enclosure (300) and the lower enclosure (400) respectively.

8. The metal powder recovery device (10) according to any one of claims 1 to 3, characterized in that: The bottom of the conical box (200) is provided with a metal powder outlet (203).

9. The metal powder recovery device (10) according to any one of claims 2 to 3, characterized in that: The metal powder recovery device (10) further comprises a support frame (1000), wherein the support frame (1000) is connected to the inner wall of the conical box body (200) and the bottom of the annular enclosure (700).

10. A water atomized metal powder production device, characterized in that: The invention comprises the metal powder recovery device (10) according to any one of claims 1 to 9.

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