A smelting device for smelting titanium alloy

Abstract

The present invention provides a smelting device for smelting titanium alloy, which relates to the technical field of smelting equipment, including: a vacuum tank body, a main sealing cover body, a feeding pipe and an inner stirring shaft; the characteristic is that the opening at the head end of the vacuum tank body is butt-sealed with a main sealing cover body, a feeding pipe is fixed on the upper part of the vacuum tank body, an inner stirring shaft is arranged on the inner side of the feeding pipe, an upper sealing cover is rotated by hinges on the top of the feeding pipe, a telescopic cylinder is fixed on the upper part of the feeding pipe, an upper connecting column is fixed on the telescopic rod of the telescopic cylinder, the upper connecting column is located below the upper sealing cover, and side connecting clamping columns are fixed on both sides of the lower part of the upper connecting column. By rotating the discharging rotating plate, the discharging ports between the discharging plate and the lower discharging rotating plate are staggered, and the material is put in multiple times in small amounts, shortening the time for uniform mixing, and solving the problem that the addition of other metals is also all added at one time, and the amount of one-time addition is large, resulting in a long mixing time for titanium and other metals.

Description

Technical Field

[0001] The invention relates to the technical field of smelting equipment, and in particular to a smelting device for smelting titanium alloy. Background Art

[0002] Titanium alloy is an alloy material with titanium as the main material and other metal materials added. In order to avoid oxidation during the smelting process of titanium alloy, titanium alloy smelting needs to be in a vacuum environment.

[0003] Titanium alloy smelting uses a vacuum smelting device. The vacuum smelting device places a smelting crucible in a tank, and the tank is evacuated before the titanium alloy smelting operation. The vacuum environment of the tank makes it very difficult to add other metals during the smelting process. Other metals are added all at once, and the amount added at one time is large, which results in a longer mixing time for titanium and other metals, increasing the smelting time. Summary of the invention

[0004] The disclosed embodiment relates to a smelting device for smelting titanium alloy, in which after the discharge ports of the middle discharge plate and the lower discharge rotating plate are staggered with each other, the upper space of the feeding tube and the interior of the vacuum tank body are isolated and disconnected, and other materials are added to the feeding tube by opening the upper sealing cover. After the discharge ports are aligned, the materials fall into the melting crucible, thereby realizing the addition of other materials during the vacuum smelting of the titanium alloy without destroying the vacuum environment of the titanium alloy smelting.

[0005] In a first aspect of the present disclosure, a smelting device for smelting titanium alloy is provided, which specifically includes: a vacuum tank body, a main sealing cover body, a feeding pipe and an inner stirring shaft, wherein the front end opening of the vacuum tank body is butt-jointed and sealed with the main sealing cover body, a feeding pipe is fixed to the upper part of the vacuum tank body, an inner stirring shaft is arranged on the inner side of the feeding pipe, a vacuum pump module is fixed to the outer side of the vacuum tank body, the vacuum pump module is connected to a connecting pipe and an electromagnetic valve is arranged, the connecting pipe is connected to the inside of the vacuum tank body, the bottom of the vacuum tank body is fixedly connected to an electric slide, the electric slide adopts existing equipment to drive the vacuum tank body along the slide rail through a motor, and an inner supporting slide is fixed inside the vacuum tank body.

[0006] In at least some embodiments, a middle worm gear shaft is fixed at the center of the main sealing cover body, the middle worm gear of the middle worm gear shaft is meshingly connected with the lower worm, the lower worm and the main shaft of the driving motor are fixed, the tail end of the middle worm gear shaft is rotatably connected with the lower base, the head end of the middle worm gear shaft is fixedly connected to the melting crucible, the melting crucible is smelted by the existing electromagnetic heating method. Since this is not the main innovation of the present design, the heating method of the melting crucible is not introduced in detail, and the driving motor and the lower base are fixedly connected.

[0007] In at least some embodiments, the lower base is slidably connected to the main sealing cover, and the lower base is fixedly connected to the slide rail of the electric slide. After the main sealing cover and the vacuum tank body are closed, the smelting crucible is located inside the vacuum tank body, and the smelting crucible is located below the feeding tube.

[0008] In at least some embodiments, the top hinge of the feeding tube is rotated to form an upper sealing cover, a telescopic cylinder is fixed to the upper part of the feeding tube, an upper connecting column is fixed to the telescopic rod of the telescopic cylinder, the upper connecting column is located below the upper sealing cover, side connecting columns are fixed on both sides of the lower part of the upper connecting column, the upper part of the feeding tube is connected to the connecting pipe, and the feeding tube is connected to the vacuum pump module through the connecting pipe.

[0009] In at least some embodiments, an upper spiral column slides on the upper part of the inner stirring shaft, an upper material guide vane slides through the middle of the upper spiral column, the upper material guide vane is rotatably connected to the middle discharging plate, a sealing rubber strip is provided at the bottom of the middle discharging plate, a lower discharging rotating plate is rotatably provided at the bottom of the middle discharging plate, a sealing rubber strip is provided on the outer side of the lower discharging rotating plate, an upper limit clip strip slides and engages with the upper part of the upper spiral column, a tail slide strip slides at the tail of the upper limit clip strip, an upper connecting inclined groove is provided on the top of the upper spiral column, and the upper connecting inclined groove is slidably connected to the side connecting column.

[0010] In at least some embodiments, a middle support spring is arranged between the tail slide bar and the upper limit clamping bar, and the middle support spring supports the upper limit clamping bar and the upper spiral column to engage, thereby keeping the position of the upper spiral column fixed and preventing the upper spiral column from falling directly when the upper spiral column and the side connecting clamping column are separated. A middle support spring is arranged between the inner stirring shaft and the upper spiral column, and the middle discharge plate is fixed on the inner side of the feeding pipe, the upper spiral column is below the lower discharge turn plate, and the upper spiral column is above the melting crucible. The upper spiral column descends to the inside of the melting crucible to perform stirring operations.

[0011] In at least some embodiments, the middle discharge plate and the lower discharge turn plate are both provided with a discharge port, the upper spiral column and the feeding tube are axially slidingly connected, the upper spiral column passes through the circular hole in the middle of the middle discharge plate, the bottom of the upper guide vane and the top of the middle discharge plate fit and slide, the lower discharge turn plate and the upper spiral column are slidably connected through, when the upper spiral column makes an axial vertical movement, the lower discharge turn plate and the upper guide vane make a circumferential rotation, the upper part of the inner stirring shaft has the same spiral structure as the upper spiral column, when the inner stirring shaft and the upper spiral column move axially, the inner stirring shaft rotates circumferentially, and the circumferential rotation of the inner stirring shaft stirs the inside of the melting crucible.

[0012] In at least some embodiments, when the discharge ports of the middle discharge plate and the lower discharge rotating plate are aligned with each other, the upper space of the middle discharge plate of the feeding tube and the interior of the vacuum tank body are in a connected state, and the material from the middle discharge plate falls into the melting crucible. When the discharge ports of the middle discharge plate and the lower discharge rotating plate are staggered with each other, the upper space of the middle discharge plate of the feeding tube and the interior of the vacuum tank body are in an isolated state.

[0013] The present invention provides a smelting device for smelting titanium alloy, which has the following beneficial effects:

[0014] After the discharge ports of the middle discharge plate and the lower discharge turn plate are staggered with each other, the upper space of the feeding tube and the interior of the vacuum tank are isolated and disconnected, and other materials are added to the feeding tube by opening the upper sealing cover. After the discharge ports are aligned, the materials fall into the melting crucible, thereby realizing the addition of other materials during the vacuum smelting of titanium alloys without destroying the vacuum environment of titanium alloy smelting.

[0015] By rotating the lower discharging rotating plate, the discharging ports between the middle discharging plate and the lower discharging rotating plate are staggered, so that intermittent feeding of materials can be achieved, and materials can be fed in small amounts and multiple times, thereby improving mixing efficiency and shortening the time for uniform mixing.

[0016] After the inner stirring shaft contacts the bottom of the melting crucible, the upper spiral column continues to descend axially, and the inner stirring shaft rotates circumferentially to stir the inside of the melting crucible. The rotation of the inner stirring shaft accelerates the uniform mixing of the materials inside the melting crucible.

[0017] The upper connecting chute and the side connecting clamp column are slidably inserted to achieve separation and connection, and the upper sealing cover is fully opened to expand the entrance size of the feeding, making the feeding operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the structure of the vacuum tank body and the main sealing cover body of the present application in a closed state;

[0022] Figure 2 A schematic diagram showing the structure of the vacuum tank body and the main sealing cover body of the present application in an open state;

[0023] Figure 3 A schematic cross-sectional structure diagram of the vacuum tank body of the present application is shown;

[0024] Figure 4 The schematic diagram of the structure of the vacuum pump module of the present application is shown;

[0025] Figure 5 The cross-sectional structure schematic diagram of the feeding pipe of the present application is shown;

[0026] Figure 6 This application shows Figure 5A is a schematic diagram of the structure of the enlarged part;

[0027] Figure 7 The cross-sectional structure diagram of the upper spiral column of the present application is shown

[0028] Figure 8 A structural schematic diagram showing the staggered state of the discharge ports of the middle discharge plate and the lower discharge rotating plate of the present application;

[0029] Fig. 9 A structural schematic diagram showing the alignment state of the discharge ports of the middle discharge plate and the lower discharge rotating plate of the present application;

[0030] Reference numerals list

[0031] 1. Vacuum tank body; 101. Vacuum pump module; 102. Connecting pipe; 103. Electric slide; 104. Inner support slide; 2. Main sealing cover; 201. Middle worm gear shaft; 202. Lower worm; 203. Driving motor; 204. Lower base; 205. Melting crucible; 3. Feeding pipe; 301. Upper sealing cover; 302. Telescopic cylinder; 303. Upper connecting column; 304. Side connecting column; 4. Inner stirring shaft; 401. Upper spiral column; 402. Upper material guide blade; 403. Middle discharge plate; 404. Discharge port; 405. Lower discharge plate; 406. Upper limit card strip; 407. Tail slide; 408. Middle support spring; 409. Upper connecting chute. DETAILED DESCRIPTION

[0032] Example 1: Please refer to Figures 1 to 9 :

[0033] The present invention proposes a smelting device for smelting titanium alloy, comprising: a vacuum tank body 1, a main sealing cover body 2, a feeding pipe 3 and an inner stirring shaft 4, a vacuum pump module 101 is fixed on the outside of the vacuum tank body 1, the vacuum pump module 101 is connected to a connecting pipe 102 and an electromagnetic valve is arranged, the connecting pipe 102 is connected to the inside of the vacuum tank body 1, the bottom of the vacuum tank body 1 is fixedly connected to an electric slide 103, the electric slide 103 adopts existing equipment to drive the vacuum tank body 1 to move along the slide rail through a motor, an inner supporting slide 104 is fixed inside the vacuum tank body 1, the main sealing cover body 2 is sealed at the head end opening of the vacuum tank body 1, a middle worm gear shaft 201 is fixed at the center of the main sealing cover body 2, a worm wheel in the middle of the middle worm gear shaft 201 and a lower worm 2 02 meshing connection, the lower worm 202 and the main shaft of the driving motor 203 are fixed, the tail end of the middle worm wheel shaft 201 is rotatably connected to the lower base 204, the head end of the middle worm wheel shaft 201 is fixedly connected to the smelting crucible 205, the smelting crucible 205 is smelted by the existing electromagnetic heating method, since this is not the main innovation of the present design, the heating method of the smelting crucible 205 is not introduced in detail, the driving motor 203 and the lower base 204 are fixedly connected, the lower base 204 and the main sealing cover 2 are slidably connected, the lower base 204 and the slide rail of the electric slide 103 are fixedly connected, after the main sealing cover 2 and the vacuum tank body 1 are closed, the smelting crucible 205 is on the inner side of the vacuum tank body 1, and the smelting crucible 205 is below the feeding pipe 3;

[0034] A feeding pipe 3 is fixed on the upper part of the vacuum tank body 1. The top hinge of the feeding pipe 3 is rotated with an upper sealing cover 301. A telescopic cylinder 302 is fixed on the upper part of the feeding pipe 3. The telescopic rod of the telescopic cylinder 302 is fixed with an upper connecting column 303. The upper connecting column 303 is located below the upper sealing cover 301. Side connecting clamping columns 304 are fixed on both sides of the lower part of the upper connecting column 303. The upper part of the feeding pipe 3 is connected with the connecting pipe 102. The feeding pipe 3 is connected to the vacuum pump module 101 through the connecting pipe 102 to perform vacuum operation. An inner stirring shaft 4 is arranged on the inner side of the feeding pipe 3. An upper spiral column 401 is slidably arranged on the upper part of the inner stirring shaft 4. An upper material guide vane 402 slides through the middle of the spiral column 401, and the upper material guide vane 402 is rotatably connected to the middle discharge plate 403. A sealing rubber strip is provided at the bottom of the middle discharge plate 403, and a lower discharge turn plate 405 is rotatably provided at the bottom of the middle discharge plate 403. A sealing rubber strip is provided on the outer side of the lower discharge turn plate 405. An upper limit clip 406 slides and engages with the upper part of the upper spiral column 401, and the tail of the upper limit clip 406 slides, and a tail slide bar 407 is fixed on the inner side of the feeding pipe 3. An upper connecting inclined groove 409 is opened on the top of the upper spiral column 401, and the upper connecting inclined groove 409 is slidably connected with the side connecting card column 304.

[0035] In the embodiment of the present disclosure, a middle support spring 408 is arranged between the tail slide bar 407 and the upper limit clamping bar 406. The middle support spring 408 supports the upper limit clamping bar 406 and the upper spiral column 401 to engage with each other, thereby keeping the position of the upper spiral column 401 fixed and preventing the upper spiral column 401 from falling directly when it is separated from the side connecting clamping bar 304. A middle support spring 408 is arranged between the inner stirring shaft 4 and the upper spiral column 401. The middle discharge plate 403 is fixed on the inner side of the feeding tube 3. The upper spiral column 401 is below the lower discharge rotating plate 405. The upper spiral column 401 is above the melting crucible 205. The upper spiral column 401 descends to the inside of the melting crucible 205 to perform stirring operations.

[0036] In the disclosed embodiment, the middle discharge plate 403 and the lower discharge rotating plate 405 are both provided with a discharge port 404, the upper spiral column 401 and the feeding tube 3 are axially slidably connected, the upper spiral column 401 passes through the central circular hole of the middle discharge plate 403, the bottom of the upper material guide vane 402 and the top of the middle discharge plate 403 slide in contact, the lower discharge rotating plate 405 and the upper spiral column 401 are slidably connected through, when the upper spiral column 401 makes an axial vertical movement, the lower discharge rotating plate 405 and the upper material guide vane 402 rotate circumferentially, the upper part of the inner stirring shaft 4 has the same spiral structure as the upper spiral column 401, when the inner stirring shaft 4 and the upper spiral column 401 move axially, the inner stirring shaft 4 rotates circumferentially, the circumferential rotation of the inner stirring shaft 4 performs a stirring operation on the inside of the melting crucible 205, and the rotation of the inner stirring shaft 4 accelerates the uniform mixing of the materials inside the melting crucible 205.

[0037] In the embodiment of the present disclosure, when the discharge port 404 of the middle discharge plate 403 and the lower discharge turn plate 405 are aligned with each other, the upper space of the middle discharge plate 403 of the feeding tube 3 and the interior of the vacuum tank body 1 are in a connected state, and the material of the middle discharge plate 403 falls into the melting crucible 205. When the discharge port 404 of the middle discharge plate 403 and the lower discharge turn plate 405 are staggered from each other, the upper space of the middle discharge plate 403 of the feeding tube 3 and the interior of the vacuum tank body 1 are in an isolated state, and the operation of the vacuum pump module 101 to evacuate the internal space of the feeding tube 3 facilitates the material inside the feeding tube 3 to enter the vacuum tank body 1, and also avoids the entry of air.

[0038] Embodiment 2, on the basis of embodiment 1, a motor is arranged inside the upper sealing cover 301, the upper connecting inclined groove 409 is arranged on the rotating cylinder at the top of the upper spiral column 401, the outer side of the upper spiral column 401 is connected to a bracket by rotation, the tail of the bracket is connected to a gear by rotation, the gear and the upper spiral column 401 are meshed and rotate synchronously, the outer gear of the upper spiral column 401 and the main shaft of the motor inside the upper sealing cover 301 are axially slidably connected, the outer gear of the upper spiral column 401 and the main shaft of the motor rotate synchronously, while the upper spiral column 401 is lifted and lowered, the motor inside the upper sealing cover 301 drives the upper spiral column 401 to rotate in a circular direction through the gear, and the upper spiral column 401 and the inner stirring shaft 4 are driven by the motor to perform titanium alloy smelting and mixing operations, there is no need for the upper spiral column 401 to move up and down, and the rotation speed of the circular shaft of the upper spiral column 401 can also be adjusted and controlled in multiple directions to meet the needs of customers with higher requirements.

[0039] The working principle of this embodiment is as follows: the electric slide 103 is started to drive the vacuum tank 1 to move synchronously away from the main sealing cover 2, the smelting crucible 205 is exposed to the outside, and the titanium metal to be smelted is added to the inside of the smelting crucible 205. Then, the electric slide 103 is started to drive the vacuum tank 1 to move closer to the main sealing cover 2, the smelting crucible 205 enters the inside of the main sealing cover 2, and the smelting crucible 205 slides to the top of the inner support slide 104, and the inner support slide 104 assists in supporting the smelting crucible 205. The vacuum tank 1 and the main The sealing cover 2 is sealed from the outside, and after the upper spiral column 401 is raised to the highest position, the discharge port 404 of the middle discharge plate 403 and the lower discharge rotating plate 405 are staggered, and the upper space of the feeding pipe 3 and the interior of the vacuum tank body 1 are isolated and disconnected. The vacuum pump module 101 can perform vacuuming operations on the feeding pipe 3 or the interior space of the vacuum tank body 1. Before heating the melting crucible 205, the interior space of the vacuum tank body 1 needs to be evacuated or replaced with other inert gases to avoid oxidation during the titanium alloy smelting process;

[0040] The upper sealing cover 301 and the feeding tube 3 are closed to seal the inside of the feeding tube 3. The upper sealing cover 301 and the feeding tube 3 are tightened by bolts. When other auxiliary materials need to be added, the upper sealing cover 301 is opened, and the feeding tube 3 and the top outlet are connected to the outside to feed other materials. The materials are fed to the top of the middle discharge plate 403, and then the upper sealing cover 301 is closed. The vacuum pump module 101 starts the process of vacuuming the inside of the feeding tube 3. When the smelting conditions for adding other materials are met, the telescopic rod of the telescopic cylinder 302 pushes the upper spiral column 401 downward, and the upper spiral column 401 is moved downward. The spiral chute on the outside of the rotating column 401 guides the upper material guide vane 402 and the lower material discharge rotating plate 405 to rotate synchronously. After the discharge port 404 of the lower material discharge rotating plate 405 is aligned with the discharge port 404 of the middle material discharge plate 403, the rotation of the upper material guide vane 402 pushes the material on the top of the middle material discharge plate 403 to the discharge port 404, and the material on the middle material discharge plate 403 falls into the melting crucible 205, so that other materials can be added during the vacuum smelting of the titanium alloy. The inside of the feeding pipe 3 is also vacuum, which will not destroy the vacuum environment of the titanium alloy smelting; the chute of the upper connecting chute 409 is a side connecting column 304 follows the arc path opened by the rotation of the upper sealing cover 301, so the side connecting column 304 is opened and closed as the upper sealing cover 301 rotates, and the upper connecting inclined groove 409 slides and chalks, and the side connecting column 304 and the upper connecting inclined groove 409 maintain axial synchronous movement in the vertical direction, and the upper sealing cover 301 will not be unable to be opened due to the sliding insertion of the side connecting column 304 and the upper connecting inclined groove 409, and there is no need to set up additional structures such as blocks, and there is no need to set a separate smaller feeding port on the top of the upper sealing cover 301. After the upper sealing cover 301 is fully opened, the feeding The top opening of the tube 3 is fully opened to expand the size of the feeding entrance. The larger caliber makes feeding operation more convenient. The middle support spring 408 supports the upper limit clamping strip 406 and the upper spiral column 401 to keep the upper spiral column 401 fixed in position to prevent the upper spiral column 401 from falling directly when it is separated from the side connection clamping column 304. The head end of the side connection clamping column 304 is a slope structure. After the downward movement force of the upper spiral column 401 is greater than the middle support spring 408, the side connection clamping column 304 retreats to compress the middle support spring 408 and separates from the upper spiral column 401, and the upper spiral column 401 continues to move downward.

[0041] During the vertical movement of the upper spiral column 401, the lower discharge rotating plate 405 is driven to rotate. Through the rotation of the lower discharge rotating plate 405, the discharge port 404 between the middle discharge plate 403 and the lower discharge rotating plate 405 is staggered. After the discharge port 404 is staggered, the lower discharge rotating plate 405 will block the discharge port 404 of the middle discharge plate 403, and the material input operation will be stopped, so as to realize intermittent material input. The material is input in small amounts and multiple times, which improves the mixing efficiency during smelting and shortens the time for uniform mixing. After the inner stirring shaft 4 contacts the bottom of the melting crucible 205, the upper spiral column 401 continues to descend axially, and the spiral grooves of the upper spiral column 401 and the inner stirring shaft 4 slide to guide the inner stirring shaft 4 to rotate in a circular motion. The inner stirring shaft 4 rotates in a circular direction to stir the inside of the melting crucible 205. The rotation of the inner stirring shaft 4 accelerates the uniform mixing of the materials inside the melting crucible 205. The rotation of the inner stirring shaft 4 does not require an additional motor drive. When the titanium alloy is smelted, the vacuum tank body 1 and the feeding pipe 3 are ventilated and contact the vacuum state. The electric slide 103 drives the vacuum tank body 1 to move away from the main sealing cover body 2. The driving motor 203 starts to drive the lower worm 202 to rotate. The lower worm 202 engages and drives the middle worm wheel shaft 201 to rotate. The middle worm wheel shaft 201, the main sealing cover body 2 and the melting crucible 205 rotate synchronously, and the melting crucible 205 is tilted to pour the internal molten metal.

Claims

1. A smelting device for smelting titanium alloy, comprising: A vacuum tank body (1), a main sealing cover body (2), a feeding pipe (3) and an inner stirring shaft (4); characterized in that the opening at the head end of the vacuum tank body (1) is butt-jointed and sealed with the main sealing cover body (2), a feeding pipe (3) is fixed on the upper part of the vacuum tank body (1), an inner stirring shaft (4) is arranged on the inner side of the feeding pipe (3), an upper sealing cover (301) is rotatably arranged on the top hinge of the feeding pipe (3), a telescopic cylinder (302) is fixed on the upper part of the feeding pipe (3), an upper connecting column (303) is fixed on the telescopic rod of the telescopic cylinder (302), the upper connecting column (303) is located below the upper sealing cover (301), side connecting clamping columns (304) are fixed on both sides of the lower part of the upper connecting column (303), the upper part of the feeding pipe (3) and the connecting column (3) are connected to each other. The inner stirring shaft (4) is connected to the through pipe (102); an upper spiral column (401) is slidably provided on the upper part of the inner stirring shaft (4); an upper material guide vane (402) is slidably provided through the middle part of the upper spiral column (401); the upper material guide vane (402) is rotatably connected to the middle discharge plate (403); a lower discharge plate (405) is rotatably provided at the bottom of the middle discharge plate (403); an upper limit clamping strip (406) is slidably engaged on the upper part of the upper spiral column (401); a tail slide bar (407) is slidably provided at the tail of the upper limit clamping strip (406); an upper connecting inclined groove (409) is provided on the top of the upper spiral column (401); the upper connecting inclined groove (409) and the side connecting clamping column (304) are slidably connected; the tail slide bar (407) and the upper limit clamping strip (406) are slidably connected. ), a middle support spring (408) is provided between the inner stirring shaft (4) and the upper spiral column (401), a middle discharge plate (403) is fixed on the inner side of the feeding pipe (3), and the upper spiral column (401) is located below the lower discharge rotating plate (405); the middle discharge plate (403) and the lower discharge rotating plate (405) are both provided with a discharge port (404), the upper spiral column (401) and the feeding pipe (3) are axially slidably connected, the bottom of the upper material guide vane (402) and the top of the middle discharge plate (403) are fitted and slidably connected, the lower discharge rotating plate (405) and the upper spiral column (401) are penetrated and slidably connected, and when the upper spiral column (401) moves axially vertically, the lower discharge rotating plate (405) The plate (405) and the upper material guide blade (402) rotate in a circular direction, the upper part of the inner stirring shaft (4) and the upper spiral column (401) have the same spiral structure, and when the inner stirring shaft (4) and the upper spiral column (401) move axially, the inner stirring shaft (4) rotates in a circular direction; when the discharge ports (404) of the middle discharge plate (403) and the lower discharge rotating plate (405) are aligned with each other, the upper space of the middle discharge plate (403) of the feeding pipe (3) and the interior of the vacuum tank body (1) are in a connected state, and when the discharge ports (404) of the middle discharge plate (403) and the lower discharge rotating plate (405) are staggered with each other, the upper space of the middle discharge plate (403) of the feeding pipe (3) and the interior of the vacuum tank body (1) are in an isolated state.

2. A smelting device for smelting titanium alloy according to claim 1, characterized in that: A vacuum pump module (101) is fixed on the outside of the vacuum tank body (1); the vacuum pump module (101) is connected to a connecting pipe (102); the connecting pipe (102) is connected to the inside of the vacuum tank body (1); the bottom of the vacuum tank body (1) is fixedly connected to an electric slide (103); and an inner support slide (104) is fixed inside the vacuum tank body (1).

3. A smelting device for smelting titanium alloy according to claim 2, characterized in that: A middle worm wheel shaft (201) is fixed at the center of the main sealing cover body (2); the middle worm wheel of the middle worm wheel shaft (201) is meshedly connected with the lower worm (202); the lower worm (202) and the main shaft of the driving motor (203) are fixed; the tail end of the middle worm wheel shaft (201) is rotatably connected with the lower base (204); and the head end of the middle worm wheel shaft (201) is fixedly connected with the smelting crucible (205).

4. A smelting device for smelting titanium alloy according to claim 3, characterized in that: The lower base (204) is slidably connected to the main sealing cover (2), and the lower base (204) is fixedly connected to the electric slide (103). After the main sealing cover (2) and the vacuum tank body (1) are closed, the smelting crucible (205) is located inside the vacuum tank body (1), and the smelting crucible (205) is located below the feeding pipe (3).

5. The smelting device for smelting titanium alloy according to claim 4, characterized in that: The upper spiral column (401) is located above the melting crucible (205).

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