CN116045672A - Vacuum furnace for purification vacuum heat treatment for rare earth extraction - Google Patents

Abstract

The invention belongs to the field of rare earth extraction and purification, and discloses a vacuum furnace for purification and vacuum heat treatment for rare earth extraction, which comprises a vacuum furnace body, wherein a furnace door is arranged on the left side of the vacuum furnace body, a first belt is connected below a door shaft, a rotating shaft is connected behind the first belt, an auxiliary opening mechanism is arranged on the right side of a sealing ring, a placing rack is arranged on the right side of the auxiliary opening mechanism, a first sliding chute is arranged below a sliding rod, a pushing frame mechanism is arranged behind the placing rack, and a pushing mechanism is arranged below the pushing frame mechanism. This vacuum furnace is used in purification vacuum thermal treatment for rare earth extraction adopts novel structural design for this device is placed the feeding and is got when material with the ejection of compact more convenient, is convenient for the opening of furnace gate through the mode that reduces inside and outside pressure difference, and pushing equipment is when placing the feeding with the rare earth of purification, by pushing the middle part of device, thereby makes the rare earth be heated evenly, improves purification efficiency.

Description

Vacuum furnace for purification vacuum heat treatment for rare earth extraction

Technical Field

The invention relates to the field of rare earth extraction and purification, in particular to a vacuum furnace for purification vacuum heat treatment for rare earth extraction.

Background

Rare earth ores exist mainly in the crust in mineral form, which has three main types: as essential constituent elements of minerals, rare earth is assigned to a mineral lattice in the form of an ionic compound to constitute an essential component of the minerals, extraction is a unit operation for separating a mixture, is one of means for purifying and purifying the compound in an organic chemistry laboratory, and is a means for purifying the rare earth minerals by extracting a desired substance from a solid or liquid mixture, and in rare earth extraction technology, there are generally an electrolytic method and a vacuum reduction method, in which only rare earth metals of general industrial grade can be prepared, and when rare earth metals having low impurities and high purity are desired to be prepared, generally by a vacuum thermal reduction method, and a vacuum furnace for thermal processing is an apparatus for vacuum thermal treatment of rare earth, and the following problems are found in the use of vacuum furnaces on the market at present:

1. the vacuum furnace is used for evacuating oxygen in the furnace to a vacuum state and then carrying out heating treatment, so that the phenomena of oxidization and decarburization are avoided when the common heating treatment is carried out in the air, the temperature in the furnace is higher when the vacuum furnace is used for carrying out the heating treatment, the rare earth is inconvenient to take and replace when the vacuum furnace is used for continuous processing, a worker cannot stretch hands into the high-temperature furnace to take the rare earth subjected to the heating treatment, a great deal of time is required for waiting for cooling the rare earth, and the time for extracting and purifying work is longer.

2. In order to ensure the pure vacuum state in the vacuum furnace, the sealing performance of the vacuum furnace door is usually strong, but the sealing ring is arranged on the door, so that the door is very difficult to open, and the internal vacuum state generates internal and external air pressure differences, so that the door is tightly adsorbed on the vacuum furnace.

3. The vacuum furnace generally has a certain length, the treatment effect of placing the rare earth in the middle of the placing rack is optimal, but when the rare earth is placed, the middle of the placing rack in the furnace is difficult to place by means of manual placing, so that the taking work of staff is laborious.

Therefore, a vacuum furnace for purification vacuum heat treatment for rare earth extraction needs to be designed to solve the above problems.

Disclosure of Invention

The invention aims to provide a vacuum furnace for purification and vacuum heat treatment for rare earth extraction, which aims to solve the problems that the existing lifting device is poor in lifting stability and safety in the construction process of a glass curtain wall and the size of a device for placing glass cannot be adjusted according to the glass with different sizes.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a vacuum furnace is used in purification vacuum thermal treatment for rare earth extraction, includes the vacuum furnace body, vacuum furnace body left side is provided with the furnace gate, the furnace gate left side is provided with the door axle, and the furnace gate inner wall is provided with the sealing washer, door axle below is connected with belt one, belt one rear is connected with the rotation axis, the sealing washer right side is provided with assists and opens the mechanism, assist and open mechanism right side and be provided with the rack, the rack below is connected with the slide bar, the slide bar below is provided with spout one, the rack rear is provided with pushing away a mechanism, pushing away a mechanism below is provided with pushing away the material mechanism, vacuum furnace body middle part is provided with the heating storehouse, and vacuum furnace body below is connected with the supporting leg.

Preferably, the pushing frame mechanism comprises a connecting rod, the right side of the connecting rod is connected with a chuck block, the left side of the connecting rod is connected with a gear II, the left side of the gear II is provided with a gear I, an auxiliary pushing rod is arranged above the gear I, the left side of the auxiliary pushing rod is connected to a movable shaft, a belt II is connected to the movable shaft, the second auxiliary pushing mechanism is positioned on the right side of the first group of auxiliary pushing mechanisms, and the second auxiliary pushing mechanism is connected with the first group of auxiliary pushing mechanisms through a connecting bottom.

Preferably, the first gear is meshed with the second gear, the diameter of the first gear is larger than that of the second gear, and the movable shaft is connected with the rotary shaft through the second belt.

Preferably, the movable shaft, the push rod, the first gear, the second gear and the connecting rod form a first boost mechanism, the second boost mechanism and the first boost mechanism are identical in structure, and the second boost mechanism is movably connected with the first boost mechanism through a connecting bottom.

Preferably, the pushing mechanism comprises a baffle plate, the baffle plate is connected to a rack, the rack is located below the first gear, a pushing rod is arranged in front of the baffle plate, and the rack is located inside the sliding groove.

Preferably, the rack is meshed with the first gear, the rack is connected with the baffle, the baffle and the pushing rod are of an integrated structure, and the pushing rod and the baffle are in contact with the surface of the placing frame.

Preferably, the auxiliary opening mechanism comprises a sliding vane, the sliding vane is positioned in a second sliding chute, the sliding chute is positioned on the left inner wall of the vacuum furnace body, a first ventilation hole is formed in the upper portion of the sliding vane, a second ventilation hole is formed in the second inner wall of the sliding chute, and a handle is connected to the outer side of the sliding vane.

Preferably, the first air hole is larger than the second air hole, the sliding sheet is in rough contact with the second sliding groove, and the sliding sheet is connected with the handle through hot melting.

Compared with the prior art, the invention has the beneficial effects that: the vacuum furnace for purification and vacuum heat treatment for rare earth extraction adopts a novel structural design, a placement frame is connected with a door shaft through a pushing frame mechanism, the placement frame is driven to slide in the furnace through opening and closing of a furnace door, rare earth on the placement frame is convenient to take, the pushing frame mechanism is provided with a pushing mechanism, when the placement frame slides in the furnace, a pushing rod pushes the rare earth placed on the placement frame to the middle part of the placement frame, so that the heat treatment effect is better, an auxiliary opening mechanism is arranged at the furnace door, air is put into the vacuum furnace after the processing is finished through pulling a handle, the air pressure difference inside and outside the furnace is reduced, and the furnace door is convenient to open;

1. the placing rack in the vacuum furnace is connected with the door shaft of the furnace door through the pushing rack mechanism, and when the furnace door is opened, the door shaft is driven to rotate, so that the movable shaft of the pushing rack mechanism rotates, the pushing rod arranged on the movable shaft is matched with the connecting rod to pull the placing rack, and when the furnace door is opened, the placing rack is automatically pushed out of the furnace, and rare earth on the placing rack is conveniently taken;

2. a rack meshed with the rack is arranged below the upper gear of the pushing frame mechanism, and the rack, the baffle and the pushing rod form the pushing mechanism;

3. the auxiliary opening mechanism is arranged in the door frame of the furnace door, and the sliding vane is pulled manually, so that the air holes on the sliding vane correspond to the air holes formed in the inner wall of the vacuum furnace, after the heat treatment is finished, air enters the furnace, the pressure difference between the inside and the outside is reduced, and the furnace door is convenient to open.

Drawings

FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 2 is a schematic diagram of the overall side view of the present invention;

FIG. 3 is a schematic top view of the overall structure of the present invention;

FIG. 4 is a schematic perspective view of a pushing frame mechanism according to the present invention;

FIG. 5 is a schematic view of an enlarged top view of the connection of the pushing frame mechanism of the present invention;

FIG. 6 is an enlarged schematic view of the structure of the present invention at A;

FIG. 7 is a schematic diagram showing a front sectional structure of the auxiliary opening mechanism of the present invention;

fig. 8 is a schematic side sectional view of the auxiliary opening mechanism of the present invention.

In the figure: 1. a vacuum furnace body; 2. a furnace door; 3. a door spindle; 4. support legs; 5. a first belt; 6. a rotation shaft; 7. a slide bar;

8. pushing frame mechanism: 801. a movable shaft; 802. a second belt; 803. a push-assisting rod; 804. a first gear; 805. a second gear; 806. a connecting bottom; 807. a chuck block; 808. a connecting rod; 809. a second boosting mechanism;

9. a placing rack; 10. a heating bin; 11. a seal ring;

12. and the pushing mechanism comprises a pushing mechanism: 1201. a rack; 1202. a sliding groove; 1203. a baffle; 1204. a pushing rod;

13. a first chute;

14. auxiliary opening mechanism: 1401. a sliding sheet; 1402. an air hole I; 1403. a handle; 1404. a second chute; 1405. and a vent hole II.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a vacuum furnace for purification vacuum thermal treatment for rare earth extraction, including vacuum furnace body 1, vacuum furnace body 1 left side is provided with furnace gate 2, furnace gate 2 left side is provided with door shaft 3, and furnace gate 2 inner wall is provided with sealing washer 11, door shaft 3 below is connected with belt one 5, belt one 5 rear is connected with rotation axis 6, sealing washer 11 right side is provided with assists and opens mechanism 14, it is provided with rack 9 to assist the mechanism 14 right side, rack 9 below is connected with slide bar 7, slide bar 7 below is provided with spout one 13, rack 9 rear is provided with pushing equipment 8, pushing equipment 8 below is provided with pushing equipment 12, vacuum furnace body 1 middle part is provided with heating bin 10, and vacuum furnace body 1 below is connected with supporting leg 4.

In this example, the pushing frame mechanism 8 includes a connecting rod 808, a chuck block 807 is connected to the right side of the connecting rod 808, a gear two 805 is connected to the left side of the connecting rod 808, a gear one 804 is provided on the left side of the gear two 805, a pushing rod 803 is provided above the gear one 804, the left side of the pushing rod 803 is connected to the movable shaft 801, a belt two 802 is connected to the movable shaft 801, a second pushing mechanism 809 is located on the right side of the first group of pushing mechanisms, the second pushing mechanism 809 is connected to the first group of pushing mechanisms through a connecting bottom 806, the gear one 804 is meshed with the gear two 805, the diameter of the gear one 804 is larger than that of the gear two 805, the movable shaft 801 is connected to the rotating shaft 6 through the belt two 802, and the meshing of the gear one 804 and the gear two 805 enables the pushing rod 803 to be linked with the connecting rod 808, so as to push the placing frame 9.

The movable shaft 801, the boosting rod 803, the first gear 804, the second gear 805 and the connecting rod 808 form a first boosting mechanism, the second boosting mechanism 809 has the same structure as the first boosting mechanism, the second boosting mechanism 809 is movably connected with the first boosting mechanism through the connecting bottom 806, and the sliding of the placing frame 9 is more stable due to the linkage of the two boosting mechanisms.

The pushing mechanism 12 comprises a baffle 1203, the baffle 1203 is connected to the rack 1201, the rack 1201 is located below the first gear 804, a pushing rod 1204 is arranged in front of the baffle 1203, the rack 1201 is located inside the sliding groove 1202, the rack 1201 is meshed with the first gear 804, the rack 1201 is connected with the baffle 1203, the baffle 1203 and the pushing rod 1204 are of an integrated structure, the pushing rod 1204 and the baffle 1203 are in contact with the surface of the placing frame 9, the pushing rod 1204 and the baffle 1203 are driven by the rack 1201 to push and discharge rare earth above the placing frame 9, push and feed the rare earth, the rare earth is located in the middle of the placing frame 9 during processing, and heating uniformity of the heating bin 10 is improved.

The auxiliary opening mechanism 14 comprises a sliding vane 1401, the sliding vane 1401 is positioned inside a sliding vane second 1404, the sliding vane second 1404 is positioned on the left side inner wall of the vacuum furnace body 1, an air hole first 1402 is formed in the upper portion of the sliding vane 1401, an air hole second 1405 is formed in the inner wall of the sliding vane second 1404, a handle 1403 is connected to the outer side of the sliding vane 1401, the air hole first 1402 is larger than the air hole second 1405, the sliding vane 1401 is in rough contact with the sliding vane second 1404, the sliding vane 1401 is connected with the handle 1403 through hot melting, the air holes are formed in a corresponding mode through the sliding vane 1401, accordingly air enters the inside of the vacuum furnace body 1, pressure difference between the inside and the outside is reduced, and door opening is more convenient and labor-saving.

Working principle: when the device is used, firstly, according to fig. 1-5, when the rare earth is required to be subjected to heat treatment, extraction and purification, the prepared rare earth is placed in a container, the furnace door 2 of the vacuum furnace body 1 is opened, when the furnace door 2 is opened, the door shaft 3 rotates to drive the rotating shaft 6 to rotate through the belt I5, the rotating shaft 6 drives the movable shaft 801 to rotate through the belt II 802, when the movable shaft 801 rotates, the movable shaft 801 is driven to rotate by the gear I804, the diameter of the gear II 805 is smaller than that of the gear I804, the gear I804 is meshed with the gear II 805, so that the gear I804 rotates to drive the gear II 805 to rotate, the connecting rod 808 connected above the gear II 805 rotates around the gear II 805, so that the chuck block 807 connected to the other side of the connecting rod 808 slides, the connecting rod 808 is movably connected with the chuck block 807, and therefore, the rotating movement of the chuck block 807 is limited by the sliding rod 7 positioned in the chute I13, the placing frame 9 in the chuck block 807 achieves the effect of stable parallel sliding, when the furnace door 2 is opened, the connecting rod 808 drives the chuck block 807 to slide outwards in parallel, so that the pushing assisting frame is better, the pushing mechanism is arranged, and the second pushing mechanism 809 is connected with the inner side of the furnace door body 1204, and the vacuum furnace door is connected with the vacuum furnace door body is started by the second pushing mechanism, and the vacuum furnace door body is provided with the vacuum furnace door 1.

According to fig. 3 and 6, a rack 1201 is disposed on the right side of a first gear 804 on the frame mechanism 8, the rack 1201 is meshed with the first gear 804, when the first gear 804 rotates, the rack 1201 is driven to slide in a sliding groove 1202, the right side of the rack 1201 is connected with a material pushing rod 1204 and a baffle 1203, the baffle 1203 is located at the inner side of the vacuum furnace body 1, when the frame mechanism 8 pushes the frame 9 out of the furnace, the material pushing rod 1204 slides to the outer side end of the frame 9 along with the rotation of the first gear 804, after rare earth is placed at the inner side of the material pushing rod 1204, when the furnace door 2 is closed, the door shaft 3 is reversed, the frame mechanism 8 pulls the frame 9 back into the furnace, and meanwhile, the reverse rotation of the first gear 804 drives the material pushing rod 1204 to slide towards the inner side of the vacuum furnace body 1, so that the material pushing rod 1204 pushes the inner rare earth to the middle of the frame 9, the rare earth is located at the middle of the vacuum furnace body 1, after the heat treatment is completed, when the frame mechanism 8 pushes the frame 9 out the frame 9, the baffle 1201 slides towards the furnace door 2 again, so that the baffle 1203 drives the rare earth to move towards the furnace door 2, and the staff is convenient to take the rare earth.

According to fig. 7-8, when the door 2 needs to be opened after heating, the sealing ring 11 is arranged on the outer ring of the door 2, in order to make the door 2 open more easily, the handle 1403 is pulled to drive the sliding vane 1401 to slide in the sliding slot two 1404, so that the air hole one 1402 above the sliding vane 1401 corresponds to the air hole two 1405 on the wall of the vacuum furnace body 1, thereby allowing the external air to enter into the vacuum furnace body 1 from the air hole, reducing the pressure difference between the inside and the outside of the vacuum furnace body 1, and making the door 2 open more labor-saving.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a purification vacuum furnace for heat treatment for rare earth extraction, includes vacuum furnace body (1), its characterized in that: the vacuum furnace comprises a vacuum furnace body (1), wherein a furnace door (2) is arranged on the left side of the vacuum furnace body (1), a door shaft (3) is arranged on the left side of the furnace door (2), a sealing ring (11) is arranged on the inner wall of the furnace door (2), a first belt (5) is connected to the lower portion of the door shaft (3), a rotating shaft (6) is connected to the rear portion of the first belt (5), an auxiliary opening mechanism (14) is arranged on the right side of the sealing ring (11), a placing rack (9) is arranged on the right side of the auxiliary opening mechanism (14), a sliding rod (7) is connected to the lower portion of the placing rack (9), a first chute (13) is arranged below the sliding rod (7), a pushing rack mechanism (8) is arranged on the rear portion of the placing rack (9), a heating bin (10) is arranged in the middle of the vacuum furnace body (1), and a supporting leg (4) is connected to the lower portion of the vacuum furnace body (1).

2. The vacuum furnace for purification vacuum heat treatment for rare earth extraction according to claim 1, wherein: the pushing frame mechanism (8) comprises a connecting rod (808), the right side of the connecting rod (808) is connected with a chuck block (807), the left side of the connecting rod (808) is connected with a gear II (805), the left side of the gear II (805) is provided with a gear I (804), a pushing assisting rod (803) is arranged above the gear I (804), the left side of the pushing assisting rod (803) is connected onto a movable shaft (801), the movable shaft (801) is connected with a belt II (802), the second pushing assisting mechanism (809) is positioned on the right side of the first group of pushing assisting mechanisms, and the second pushing assisting mechanism (809) is connected with the first group of pushing assisting mechanisms through a connecting bottom (806).

3. The vacuum furnace for purification vacuum heat treatment for rare earth extraction according to claim 2, wherein: the first gear (804) is meshed with the second gear (805), the diameter of the first gear (804) is larger than that of the second gear (805), and the movable shaft (801) is connected with the rotary shaft (6) through the second belt (802).

4. The vacuum furnace for purification vacuum heat treatment for rare earth extraction according to claim 2, wherein: the movable shaft (801), the boosting rod (803), the first gear (804), the second gear (805) and the connecting rod (808) form a first boosting mechanism, the second boosting mechanism (809) has the same structure as the first boosting mechanism, and the second boosting mechanism (809) is movably connected with the first boosting mechanism through a connecting bottom (806).

5. The vacuum furnace for purification vacuum heat treatment for rare earth extraction according to claim 1, wherein: the pushing mechanism (12) comprises a baffle (1203), the baffle (1203) is connected to a rack (1201), the rack (1201) is located below a first gear (804), a pushing rod (1204) is arranged in front of the baffle (1203), and the rack (1201) is located inside a sliding groove (1202).

6. The vacuum furnace for purification vacuum heat treatment for rare earth extraction according to claim 5, wherein: the rack (1201) is meshed with the first gear (804), the rack (1201) is connected with the baffle (1203), the baffle (1203) and the pushing rod (1204) are of an integrated structure, and the pushing rod (1204) and the baffle (1203) are both contacted with the surface of the placing frame (9).

7. The vacuum furnace for purification vacuum heat treatment for rare earth extraction according to claim 1, wherein: the auxiliary opening mechanism (14) comprises a sliding vane (1401), the sliding vane (1401) is located inside a sliding groove II (1404), the sliding groove II (1404) is located on the left inner wall of the vacuum furnace body (1), an air vent I (1402) is formed in the upper portion of the sliding vane (1401), an air vent II (1405) is formed in the inner wall of the sliding groove II (1404), and a handle (1403) is connected to the outer side of the sliding vane (1401).

8. The vacuum furnace for purification vacuum heat treatment for rare earth extraction according to claim 7, wherein: the first ventilation hole (1402) is larger than the second ventilation hole (1405), the sliding sheet (1401) is in rough contact with the second sliding groove (1404), and the sliding sheet (1401) is connected with the handle (1401) through hot melting.

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