Atomization tundish
By designing a slag partition, the metal melt and impurities are separated by slag separating plates, the problem of difficult to remove impurities with high density in the prior art is solved, and the finished product quality and atomization efficiency of metal powder are improved.
Patent Information
- Application Number
- CN202420443331.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The prior art is difficult to effectively remove impurities with high density in the atomization method, which affects the finished product quality and atomization efficiency of metal powders.
A kind of atomization tundra is designed, including an insulating shell and a liner, with a slag partition plate in the inner liner, which divides the flow area of the metal melt into a deposition cavity and a discharge cavity. The metal melt is separated into the discharge cavity through a feed pipe to prevent impurities from entering.
Effectively isolate the scum with smaller density and impurities with larger density, which improves the finished product quality of metal powder, avoids impurities from clogging the diversion pipe, and improves the atomization efficiency.
Smart Images
Figure CN222552170U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of powder metallurgy material preparation, in particular to an atomizing tundish. Background Art
[0002] Among the methods for manufacturing metal powders, atomization is one of the most widely used methods. The main process flow of the atomization method is as follows: the molten metal melt passes through the tundish and enters the atomizer for atomization to form metal powder. The prior art generally divides the tundish into two areas by setting a structure such as a slag baffle plate. In one area of the molten metal melt, some impurities with lower density float up and are blocked on one side by the slag baffle plate. The molten metal melt enters the other area through the opening at the bottom of the slag baffle plate, and the slag baffle plate is used to isolate the impurities with lower density. However, some impurities with higher density may pass through the opening at the bottom of the slag baffle plate with the molten metal melt and enter the atomizer with the metal melt, affecting the quality of the finished metal powder, or clogging the guide tube, affecting the efficiency of atomization. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides an atomizing tundish.
[0004] The technical solution of the utility model is: an atomizing tundish, comprising an insulation shell and an inner liner, the inner wall of the insulation shell is fitted with the outer wall of the inner liner, and a water outlet is provided at the bottom of the insulation shell. The inner liner is provided with a slag separator, which divides the interior of the inner liner into a deposition chamber and a discharge chamber, and the discharge chamber is connected to the water outlet; a feed pipe is provided at the bottom of one side of the slag separator located in the deposition chamber, one end of the feed pipe is bent downward, and the other end passes through the slag separator and is connected to the discharge chamber.
[0005] Furthermore, the insulation shell and the lining are both tapered, being wider at the top and narrower at the bottom.
[0006] Furthermore, a bottom slope is provided at the bottom of the deposition chamber, and the bottom slope is integrated with the lining.
[0007] Furthermore, a plurality of material conveying pipes are arranged at the same height of the slag separation plate.
[0008] Furthermore, a plurality of reinforcing ribs are provided on both sides of the slag separator.
[0009] Furthermore, side fillets are provided on both sides of the discharge cavity close to the slag separator.
[0010] Compared with the prior art, the utility model has the following advantages: after the molten metal enters the deposition chamber, the slag with a smaller density floats up and is isolated on one side of the deposition chamber by the slag isolation plate; the impurities with a larger density sink to the bottom of the deposition chamber, and the molten metal enters the discharge chamber on the other side of the slag isolation plate through the feed pipe. A section of the feed pipe is bent downward to prevent impurities with a larger density from entering the feed pipe along with the molten metal, thereby separating the molten metal from the impurities with a larger density. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0012] Figure 1 It is an overall schematic diagram of the utility model;
[0013] Figure 2 It is a cross-sectional schematic diagram of the utility model.
[0014] Among them: 1. insulation shell; 2. lining; 11. water inlet; 21. sedimentation chamber; 22. slag separator; 23. discharge chamber; 211. bottom slope; 221. feed pipe; 222. reinforcing ribs; 231. side fillet. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0016] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:
[0017] like Figures 1-2As shown, an atomizing tundish includes an insulation shell 1 and an inner liner 2, the inner wall of the insulation shell 1 is fitted with the outer wall of the inner liner 2, and a water inlet 11 is provided at the bottom of the insulation shell 1. The inner liner 2 is provided with a slag separator 22, and the slag separator 22 divides the interior of the inner liner 2 into a deposition chamber 21 and a discharge chamber 23, and the discharge chamber 23 is connected to the water inlet 11. The slag separator 22 is located at the bottom of one side of the deposition chamber 21 and is provided with a feed pipe 221, one end of the feed pipe 221 is bent downward, and the other end passes through the slag separator 22 and is connected to the discharge chamber 23. The molten metal first enters the deposition chamber 21, and the slag with a smaller density floats up and is isolated on one side of the deposition chamber 21 by the slag separator 22. One end of the feed pipe 221 is bent downward, which can prevent impurities with a larger density from entering the feed pipe 221 along with the molten metal, and the impurities with a larger density are deposited at the bottom of the deposition chamber 21. The insulation shell 1 and the lining 2 are both tapered, wide at the top and narrow at the bottom. The tapered structure is convenient for increasing the pressure at the bottom of the tundish and improving the fluidity of the molten metal. The bottom of the deposition chamber 21 is provided with a bottom slope 211, and the bottom slope 211 is integrated with the lining 2. The low slope is convenient for concentrating impurities with higher density to the bottom surface of the deposition chamber 21, so that the impurities with higher density are separated from the molten metal, and the molten metal is above the high-density impurities and enters the discharge chamber 23 through the feed pipe 221. A plurality of feed pipes 221 are provided at the same height of the slag separator 22. The multiple feed pipes 221 can improve the transportation efficiency of the molten metal and make the molten metal enter the discharge chamber 23 evenly. A plurality of reinforcing ribs 222 are provided on both sides of the slag separator 22. The reinforcing ribs 222 can improve the strength of the slag separator 22 and prevent local deformation of the slag separator 22. Side fillets 231 are provided on both sides of the discharge chamber 23 close to the slag separator 22 , and the side fillets 231 prevent the molten metal from colliding too violently with the inner wall of the discharge chamber 23 when flowing in the discharge chamber 23 , so that the molten metal remains stable in the discharge chamber 23 .
[0018] The working principle of the specific implementation mode of the utility model is as follows: the molten metal enters the sedimentation chamber 21, the slag separation plate 22 isolates the floating impurities on one side of the sedimentation chamber 21, the high-density impurities sink and accumulate to the bottom surface of the sedimentation chamber 21 along the bottom slope 211, the molten metal enters the discharge chamber 23 along the feed pipe 221, and is finally discharged through the water outlet 11 at the bottom of the discharge chamber 23.
[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.
[0020] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. An atomizing tundish, comprising an insulation shell (1) and an inner liner (2), wherein the inner wall of the insulation shell (1) is in contact with the outer wall of the inner liner (2), and a water inlet (11) is provided at the bottom of the insulation shell (1), characterized in that: The inner lining (2) is provided with a slag separation plate (22), and the slag separation plate (22) divides the interior of the inner lining (2) into a sedimentation chamber (21) and a discharge chamber (23), and the discharge chamber (23) is connected to the water outlet (11); the slag separation plate (22) is provided with a feed pipe (221) at the bottom of one side of the sedimentation chamber (21), and one end of the feed pipe (221) is bent downward, and the other end passes through the slag separation plate (22) and is connected to the discharge chamber (23).
2. The atomizing tundish according to claim 1, characterized in that: The heat-insulating shell (1) and the inner lining (2) are both in a cone shape that is wider at the top and narrower at the bottom.
3. The atomizing tundish according to claim 1, characterized in that: The bottom of the deposition chamber (21) is provided with a bottom slope (211), and the bottom slope (211) is integrated with the lining (2).
4. The atomizing tundish according to claim 1, characterized in that: A plurality of material conveying pipes (221) are arranged at the same height of the slag separation plate (22).
5. The atomizing tundish according to claim 1, characterized in that: Both sides of the slag separation plate (22) are provided with a plurality of reinforcing ribs (222).
6. The atomizing tundish according to claim 1, characterized in that: The discharge cavity (23) is provided with side fillets (231) on both sides close to the slag separation plate (22).