EB furnace feeding device

Abstract

The utility model relates to the field of electron beam cold bed smelting, and discloses an EB furnace feeding device which comprises a smelting furnace, and a grinding mechanism is arranged above the smelting furnace. The grinding mechanism comprises a grinding box, a second motor, a rotating shaft, a grinding block, a first grinding ring and a second grinding ring, the second motor is fixedly connected to the top of the grinding box, one end of the rotating shaft is fixedly connected to the output end of the second motor, and the other end of the rotating shaft is fixedly connected to the top of the grinding block; the bottom of the outer side of the grinding block is fixedly connected to the inner wall of the first grinding ring, and the lower side of the interior of the grinding box is fixedly connected to the outer side of the second grinding ring. According to the grinding device, through rotation of the first grinding ring, smelted materials enter from the feeding pipeline and fall into the gap between the first grinding ring and the second grinding ring, through rotation of the first grinding ring, the smelted materials are ground, the particle size of the smelted materials is made to have certain uniformity, then the smelting time is shortened, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of electron beam cold bed smelting, in particular to an EB furnace feeding device. Background Art

[0002] Electron beam melting refers to a vacuum melting method that converts the kinetic energy of a high-speed electron beam into heat energy as a heat source for metal melting under high vacuum. It is referred to as EBM for short. This melting method has the characteristics of high melting temperature, adjustable furnace power and heating speed, and good product quality, but it also has problems such as low metal yield, high specific power consumption, and the need to melt in a high vacuum state. Electron beam melting is not only used for melting and refining of steel and rare metals, but is also widely used in welding, ceramic material melting and casting, etc.

[0003] When the existing EB furnace is in use, the raw material particles have different sizes, so it is necessary to extend the smelting time to make them melt completely, thereby reducing the processing efficiency. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an EB furnace feeding device, which aims to improve the problems that raw material particles are of different sizes, the smelting time needs to be extended, and the processing efficiency is low.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an EB furnace feeding device comprises a smelting furnace, and a grinding mechanism is arranged above the smelting furnace;

[0006] The grinding mechanism includes a grinding box, a second motor, a rotating shaft, a grinding block, a first grinding ring and a second grinding ring. The second motor is fixedly connected to the top of the grinding box, one end of the rotating shaft is fixedly connected to the output end of the second motor, the other end of the rotating shaft is fixedly connected to the top of the grinding block, the outer bottom of the grinding block is fixedly connected to the inner wall of the first grinding ring, and the inner lower side of the grinding box is fixedly connected to the outer side of the second grinding ring.

[0007] As a further description of the above technical solution:

[0008] A material storage pipeline is fixedly connected to the left side of the top of the grinding box.

[0009] As a further description of the above technical solution:

[0010] The top of the material storage pipeline is fixedly connected to a first motor, and a spiral blade is arranged inside the material storage pipeline, and one end of the spiral blade is fixedly connected to the output end of the first motor.

[0011] As a further description of the above technical solution:

[0012] The outer top of the material storage pipeline is fixedly connected with a feeding pipeline.

[0013] As a further description of the above technical solution:

[0014] The bottom of the grinding box is fixedly connected with a material storage box.

[0015] As a further description of the above technical solution:

[0016] The bottom of the material storage box is fixedly connected with a discharge pipe, and the outer side of the discharge pipe is fixedly connected with a solenoid valve.

[0017] As a further description of the above technical solution:

[0018] The first grinding ring and the second grinding ring are made of cemented carbide.

[0019] As a further description of the above technical solution:

[0020] The grinding block is conical.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by driving the second motor, the rotation of the rotating shaft and the grinding block can be driven, thereby driving the first grinding ring to rotate. The smelt enters from the feed pipe and falls into the gap between the first grinding ring and the second grinding ring. Through the rotation of the first grinding ring, the smelt is ground into particles of similar size, thereby reducing the smelting time and improving the smelting quality.

[0023] 2. In the utility model, the smelt slides into the storage pipe along the curvature of the feed pipe through the feed pipe and falls onto the spiral blades. The spiral blades prevent the raw materials from directly entering the grinding box. By driving the first motor to drive the spiral blades to rotate, the raw materials can be slowly brought into the grinding box, which can prevent excessive raw materials from entering the grinding box and causing blockage, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall structural diagram of an EB furnace feeding device proposed by the utility model;

[0025] Figure 2 This is a cross-sectional view of a grinding mechanism of an EB furnace feeding device proposed by the utility model;

[0026] Figure 3 This is a cross-sectional view of a material storage pipeline of an EB furnace feeding device proposed by the utility model;

[0027] Figure 4 for Figure 2 Enlarged view of point A in .

[0028] Legend:

[0029] 1. Melting furnace; 2. Grinding box; 3. Storage box; 4. Storage pipe; 5. Feed pipe; 6. First motor; 7. Second motor; 8. Discharge pipe; 9. Solenoid valve; 10. Rotating shaft; 11. Grinding block; 12. First grinding ring; 13. Second grinding ring; 14. Spiral blade. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 2 , Figure 4 The utility model provides an embodiment: an EB furnace feeding device, comprising a smelting furnace 1, a grinding mechanism is arranged above the smelting furnace 1; the grinding mechanism comprises a grinding box 2, a second motor 7, a rotating shaft 10, a grinding block 11, a first grinding ring 12 and a second grinding ring 13, the second motor 7 is fixedly connected to the top of the grinding box 2, one end of the rotating shaft 10 is fixedly connected to the output end of the second motor 7, the other end of the rotating shaft 10 is fixedly connected to the top of the grinding block 11, the outer bottom of the grinding block 11 is fixedly connected to the inner wall of the first grinding ring 12, and the inner lower side of the grinding box 2 is fixedly connected to the outer side of the second grinding ring 13. The grinding block 11 is conical. The first grinding ring 12 and the second grinding ring 13 are set to be made of cemented carbide. When in use, the object to be smelted is first put into the feed pipe 5, passed through the spiral blade 14, and entered into the grinding box 2, and then ground by the first grinding ring 12 and the second grinding ring 13 to form particles of uniform size, passed through the storage box 3, and entered the discharge pipe 8, and then the solenoid valve 9 is powered on to keep its valve in an open state, so that the ground particles can enter the smelting furnace 1 from the discharge pipe 8 to start smelting. Through the cone of the grinding block 11, the first grinding ring 12 can be fixedly connected below the cone, and when the cone rotates, the first grinding ring 12 can be driven to rotate. Through the cemented carbide material, due to the high hardness of the cemented carbide material, the first grinding ring 12 and the second grinding ring 13 will not be deformed when the smelt is ground.

[0032] Reference Figure 1 , Figure 3, a storage pipe 4 is fixedly connected to the left side of the top of the grinding box 2. A first motor 6 is fixedly connected to the top of the storage pipe 4, and a spiral blade 14 is arranged inside the storage pipe 4, and one end of the spiral blade 14 is fixedly connected to the output end of the first motor 6. A feed pipe 5 is fixedly connected to the top of the outer side of the storage pipe 4. Through the storage pipe 4, the items that need to be smelted can be stored to ensure the uninterrupted supply of materials. Through the spiral blade 14, when there is no need to add smelting materials to the smelting furnace 1, the smelting materials can be dropped on the spiral blade 14 so that they will not fall into the grinding box 2. When it is necessary to add smelting materials, the first motor 6 is driven again to rotate the spiral blade 14 so that the smelting materials above the spiral blade 14 can smoothly enter the grinding box 2 for grinding. By driving the first motor 6, the spiral blade 14 can be driven to operate. Through the feed pipe 5, the smelting materials can be put in from one end of the feed pipe 5, so that the smelting materials can slide along the curvature of the feed pipe 5 into the inside of the storage pipe 4 and fall onto the spiral blade 14.

[0033] Reference Figure 1-2 The bottom of the grinding box 2 is fixedly connected with a storage box 3. The bottom of the storage box 3 is fixedly connected with a discharge pipe 8, and the outer side of the discharge pipe 8 is fixedly connected with a solenoid valve 9. Through the storage box 3, it can be ensured that when the smelting furnace 1 is running, there will be no untimely feeding or interrupted feeding, which will affect the smelting quality. Through the discharge pipe 8, the ground particles can enter the smelting furnace 1 from one end of the discharge pipe 8, and through the solenoid valve 9, when the smelting furnace 1 does not need to be fed, the feeding is stopped in time.

[0034] Working principle: When in use, first put the smelt to be smelted through the feed pipe 5, the smelt slides into the storage pipe 4 along the curvature of the feed pipe 5, and falls on the spiral blade 14, and then drives the first motor 6 to start the spiral blade 14 to make the smelt enter the grinding box 2. When grinding is not needed, it is only necessary not to drive the first motor 6 to let the smelt stand on the spiral blade 14. When the smelt enters the grinding box 2, drive the second motor 7 to drive the second motor 7 to drive the rotation of the rotating shaft 10 and the grinding block 11, thereby driving the first grinding ring 12 to rotate, and the smelt falls into the gap between the first grinding ring 12 and the second grinding ring 13. Through the rotation of the first grinding ring 12, the smelt The smelting material is ground into particles of uniform size, which reduces the smelting time and improves the smelting quality. After being ground into particles of uniform size, the particles fall into the storage box 3. When the smelting furnace 1 is running, the solenoid valve 9 is powered on to keep its valve open, so that the smelting material ground into particles enters the smelting furnace 1 along the discharge pipe 8 for smelting. When the smelting furnace 1 does not need to be fed, the solenoid valve 9 is powered off to close its valve to prevent particles from entering the smelting furnace 1. When the solenoid valve 9 is kept closed, part of the smelting material that has been ground into particles can be stored in the storage box 3 to avoid untimely feeding and slow feeding when the smelting furnace 1 needs to be fed, thereby affecting the quality after smelting.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An EB furnace feeding device, comprising a smelting furnace (1), characterized in that: A grinding mechanism is provided above the smelting furnace (1); The grinding mechanism comprises a grinding box (2), a second motor (7), a rotating shaft (10), a grinding block (11), a first grinding ring (12) and a second grinding ring (13); the second motor (7) is fixedly connected to the top of the grinding box (2); one end of the rotating shaft (10) is fixedly connected to the output end of the second motor (7); the other end of the rotating shaft (10) is fixedly connected to the top of the grinding block (11); the outer bottom of the grinding block (11) is fixedly connected to the inner wall of the first grinding ring (12); and the inner lower side of the grinding box (2) is fixedly connected to the outer side of the second grinding ring (13).

2. The EB furnace feeding device according to claim 1, characterized in that: A material storage pipe (4) is fixedly connected to the left side of the top of the grinding box (2).

3. The EB furnace feeding device according to claim 2, characterized in that: The top of the material storage pipe (4) is fixedly connected to a first motor (6), a spiral blade (14) is arranged inside the material storage pipe (4), and one end of the spiral blade (14) is fixedly connected to the output end of the first motor (6).

4. The EB furnace feeding device according to claim 2, characterized in that: A feeding pipeline (5) is fixedly connected to the outer top of the material storage pipeline (4).

5. The EB furnace feeding device according to claim 1, characterized in that: A material storage box (3) is fixedly connected to the bottom of the grinding box (2).

6. The EB furnace feeding device according to claim 5, characterized in that: A discharge pipe (8) is fixedly connected to the bottom of the material storage box (3), and a solenoid valve (9) is fixedly connected to the outside of the discharge pipe (8).

7. The EB furnace feeding device according to claim 1, characterized in that: The first grinding ring (12) and the second grinding ring (13) are made of hard alloy.

8. The EB furnace feeding device according to claim 1, characterized in that: The grinding block (11) is conical.

Images