CN111578703A

CN111578703A - Cover type circulation mechanical vacuum refining device

Info

Publication number: CN111578703A
Application number: CN202010461083.XA
Authority: CN
Inventors: 柳青峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-08-25

Abstract

The invention discloses a cover type circulation mechanical vacuum refining device, which comprises a vacuum smelting furnace main body, wherein one side of the vacuum smelting furnace main body is provided with a vacuum-pumping pipe, the top of the vacuum smelting furnace main body is provided with a furnace cover, the top of the furnace cover is provided with an annular cylinder in a penetrating way, the inner wall of the annular cylinder is provided with a lateral airtight device, the lateral airtight device comprises a sector air bag, one side of the sector air bag is provided with an air-replenishing air bag, one side of the sector air bag is inwards concave and provided with an inwards-contracting part, the inner wall of the air-replenishing air bag is correspondingly and slidably provided with a piston plate, an arc-shaped sleeve is sleeved between the two piston plates in a sliding way, two sides of the air-replenishing air bag are correspondingly provided with fixed rollers, the fixed rollers are wound with volute springs, the volute springs penetrate through the, has the characteristics of strong practicability and adaptability to various steel shapes.

Description

Cover type circulation mechanical vacuum refining device

Technical Field

The invention relates to the technical field of metal smelting, in particular to a cover-type circulation mechanical vacuum refining device.

Background

The vacuum melting is a special melting technology for melting metal and alloy under the vacuum condition. Vacuum melting causes a change in the conditions of the physicochemical reaction carried out at atmospheric pressure, which is mainly reflected in a reduction in the gas phase pressure. If the pressure of the system is reduced, the equilibrium reaction can be shifted in the direction of increasing gaseous species, provided that there is a gas phase in the metallurgical reaction and that the number of moles of gas in the reaction product is greater than the number of moles of gas in the reactants.

When the existing vacuum smelting furnace is used for smelting long-section steel, the negative pressure state in the furnace needs to be maintained, so that the steel needs to be cut off in advance, the steel completely enters the interior of the furnace body and can be smelted, one extra process is required during smelting, time and labor are wasted, and the practicability is poor. Therefore, it is necessary to design a jacket type circulation mechanical vacuum refining device which has strong practicability and is suitable for various steel shapes.

Disclosure of Invention

The invention aims to provide a cover type circulation mechanical vacuum refining device to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a cover type circulation machinery vacuum refining device, includes the vacuum melting furnace main part, one side of vacuum melting furnace main part is provided with the evacuation pipe, the bell is installed at the top of vacuum melting furnace main part, the top of bell link up and is provided with an annular section of thick bamboo, the inner wall of an annular section of thick bamboo is provided with side gas tight device.

Further, side air-tight device includes fan-shaped gasbag, one side of fan-shaped gasbag is provided with the tonifying qi gasbag, one side of fan-shaped gasbag is equipped with the portion that contracts inwards to the indent, the inner wall of tonifying qi gasbag corresponds to slide and is provided with the piston board, two the arc cover has been cup jointed in the slip between the piston board, the both sides correspondence of tonifying qi gasbag is installed the fixed roll, the wraparound has the volute spring on the fixed roll, the volute spring passes the outer wall of tonifying qi gasbag, and the one end of volute spring is connected with the piston board.

Furthermore, the top and the bottom of the fan-shaped air bag are correspondingly provided with grooves, and the inner walls of the grooves are uniformly and rotatably provided with contact rollers.

Further, a top airtight device is arranged at the top of the furnace cover and comprises a cover shell, an elastic rubber film is fixedly bonded on the inner wall of the housing, a hose is arranged on one side of the housing in a penetrating way, the top of the furnace cover is fixedly provided with a fixed sleeve by welding, the inside of the fixed sleeve is movably connected with a winding roller by a bearing, the hose is wound outside the winding roller, the tail end of the hose is fixed with the fixed sleeve, two ends of the winding roller are rotatably connected with a bracket which is arranged at the top of the furnace cover, one side of the bracket is provided with a winding motor, an output shaft of the winding motor is connected with the winding roller, the one end of hose is connected with the liquid pump, the feed liquor end of liquid pump is connected with the filling liquid case, the top of bell corresponds installs the guide rail, housing and guide rail sliding connection.

Furthermore, two ports of the liquid pump are respectively connected with a first branch pipe and a second branch pipe, a fourth valve is arranged on the first branch pipe, a second valve is arranged on the second branch pipe, a first valve is arranged between the outlet end of the liquid pump and the first branch pipe, and a third valve is arranged between the inlet end of the liquid pump and the second branch pipe.

Further, the inner wall of the housing is provided with a fixed block, and the bottom of the fixed block is connected with a heating wire.

Further, the bottom of housing is provided with blocks the subassembly, block the subassembly including fixed solid fixed ring that sets up at the bottom inner wall of housing, gu fixed ring's inner wall has the baffle that the range upon range of form slip of a plurality of to cup joint through welded fastening, the draw-in groove has been seted up to one side of baffle, is located on two baffles be provided with the fixture block between the draw-in groove.

Furthermore, a first electromagnet and a second electromagnet are respectively installed on the inner wall of the baffle, a permanent magnet is installed on the outer wall of the baffle, and the first electromagnet and the second electromagnet located on the outer ring baffle and the permanent magnet located on the inner ring baffle are in a matched structure.

Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,

(1) by arranging the lateral airtight device, the lateral airtightness can be provided when the smelting part is vertically placed, so that the smelting part can be completely placed into the smelting part for smelting without section cutting, and the working efficiency is high;

(2) the outer wall of the smelting part is attached to the fan-shaped air bag, the air supply air bag and other components in an inflation mode, so that the smelting part is suitable for smelting parts with different contour shapes;

(3) the top of the vacuum furnace can be tightly sealed by the top airtight device, so that a negative pressure environment is conveniently formed in the vacuum furnace, air leakage caused by a hollow smelting part is prevented, and the vacuum furnace does not need to be manually sealed;

(4) the elastic rubber membrane, the liquid pump and other components are arranged, so that the smelting parts with different top surface shapes can be adapted, the sealing can be better realized, and the application is wider;

(5) by providing the blocking member, the falling of the elastic rubber film in the non-contour shape can be restricted, so that the elastic rubber film in the contour shape falls to better complement the gap of the refining member with the inclined top surface.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the top airtight device of the present invention;

FIG. 3 is a side cross-sectional structural schematic view of the top airtight device of the present invention;

FIG. 4 is a schematic view of the barrier assembly of the present invention;

FIG. 5 is a schematic view of the side airtight device of the present invention;

FIG. 6 is a schematic cross-sectional view of the lateral airtight device of the present invention;

in the figure: 1. a vacuum melting furnace main body; 11. vacuumizing a tube; 2. a furnace cover; 21. an annular cylinder; 22. a guide rail; 3. a lateral airtight device; 4. a top airtight device; 31. a fan-shaped air bag; 311. a groove; 312. a contact roller; 313. an inner contracting part; 32. a gas-replenishing air bag; 321. a piston plate; 322. an arc-shaped sleeve; 323. a throttle valve; 324. a fixed roller; 325. a volute spiral spring; 41. an elastic rubber film; 42. heating wires; 43. a housing; 44. a fixed block; 45. a hose; 46. winding the tube roller; 461. fixing a sleeve; 47. a support; 471. a winding motor; 48. a liquid pump; 481. a first branch pipe; 482. a second branch pipe; 483. a first valve; 484. a second valve; 485. a third valve; 486. a fourth valve; 49. a filling liquid tank; 5. a blocking component; 51. a fixing ring; 52. a baffle plate; 521. a clamping block; 522. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a cover type circulation mechanical vacuum refining device comprises a vacuum smelting furnace main body 1, wherein a vacuumizing pipe 11 is arranged on one side of the vacuum smelting furnace main body 1, a furnace cover 2 is installed at the top of the vacuum smelting furnace main body 1, an annular cylinder 21 is arranged at the top of the furnace cover 2 in a penetrating manner, a lateral airtight device 3 is arranged on the inner wall of the annular cylinder 21, the vacuum smelting furnace main body 1 is used for smelting a smelting part, the vacuumizing pipe 11 is used for maintaining a negative pressure environment, the annular cylinder 21 is used for placing the smelting part, the lateral airtight device 3 is used for sealing the lateral side of the smelting part to prevent air leakage, the smelting part can be placed into the vacuum smelting furnace main body 1 for smelting without being cut into sections, and;

referring to fig. 5 and 6, the lateral airtight device 3 includes a fan-shaped air bag 31, an air supply air bag 32 is disposed on one side of the fan-shaped air bag 31, an inward contracting portion 313 is disposed on one side of the fan-shaped air bag 31 in an inward concave manner, piston plates 321 are slidably disposed on inner walls of the air supply air bag 32, an arc-shaped sleeve 322 is slidably sleeved between the two piston plates 321, fixed rollers 324 are correspondingly mounted on two sides of the air supply air bag 32, a spiral spring 325 is wound on the fixed rollers 324, the spiral spring 325 passes through outer walls of the air supply air bag 32, and one end of the spiral spring 325 is connected with the piston plates 321, when a melting element is inserted into the middle of the fan-shaped air bag 31, the piston plates 321 are pulled inward by elastic force, the piston plates 321 slide and shorten in the arc-shaped sleeve 322 to adapt to the gradually narrowing shape of the air supply air bag 32, space of the air supply air bag 32 is squeezed into the fan-, the outer wall of the fan-shaped air bag 31 is deformed and is mutually attached to the outer wall of the smelting piece, when the smelting piece is used up or the cross section shape is changed, the inward-contracting part 313 is inwards extruded or the inward-contracting part 313 is outwards jacked up due to the elastic force of the volute spiral spring 325 to adapt to the change of the shape, so that the air tightness can be kept all the time, and a throttle valve 323 is preferably connected outside the air replenishing air bag 32 and used for limiting the deformation speed of the fan-shaped air bag 31;

the top and the bottom of the fan-shaped air bag 31 are correspondingly provided with grooves 311, the inner wall of the groove 311 is uniformly and rotatably provided with contact rollers 312, the contact rollers 312 are contacted with the outer wall of a smelting part when in use, the peripheral surface of the contact rollers 312 is slightly higher than the outer wall of the fan-shaped air bag 31, and the friction between the fan-shaped air bag 31 and the smelting part can be reduced;

as shown in fig. 2, a top airtight device 4 is arranged on the top of a furnace cover 2, the top airtight device 4 comprises a housing 43, an elastic rubber film 41 is fixed on the inner wall of the housing 43 through bonding, a hose 45 is arranged on one side of the housing 43 in a penetrating way, a fixed sleeve 461 is fixed on the top of the furnace cover 2 through welding, a winding roller 46 is movably connected inside the fixed sleeve 461 through a bearing, the hose 45 is wound outside the winding roller 46, the tail end of the hose 45 is fixed with the fixed sleeve 461, two ends of the winding roller 46 are rotatably connected with a bracket 47, the bracket 47 is arranged on the top of the furnace cover 2, a winding motor 471 is arranged on one side of the bracket 47, the output shaft of the winding motor 471 is connected with the winding roller 46, one end of the hose 45 is connected with a liquid pump 48, the liquid inlet end of the liquid pump 48 is connected with a filling liquid tank 49, a guide, when the smelting part starts to smelt, the top of the smelting part starts to descend, the height of the housing 43 changes along with the height of the smelting part and slides downwards on the guide rail 22, when the smelting part descends, the winding motor 471 is started, the output shaft of the winding motor drives the winding roller 46 to rotate, the hose 45 is wound on the outer wall of the winding roller 46 again, the liquid pump 48 works at the moment and pumps liquid into the housing 43 from the hose 45, the liquid is gradually accumulated and fills the housing 43 according to the shape of the top of the smelting part, the hollow smelting part is prevented from leaking gas, and the shape of the elastic rubber film 41 can be changed at will due to the fact that the shape of the liquid can be changed at will, and the elastic rubber film adapts to the end face of;

as shown in fig. 3, a first branch pipe 481 and a second branch pipe 482 are respectively connected to two ports of the liquid pump 48, a fourth valve 486 is provided on the first branch pipe 481, a second valve 484 is provided on the second branch pipe 482, a first valve 483 is provided between an outlet end of the liquid pump 48 and the first branch pipe 481, a third valve 485 is provided between an inlet end of the liquid pump 48 and the second branch pipe 482, when liquid needs to be pumped into the housing 43, the first valve 483 and the third valve 485 are opened, the second valve 484 and the fourth valve 486 are closed, liquid is pumped into the housing 43 from the filling liquid tank 49 at the moment, so that the liquid in the housing 43 is replenished, a better sealing effect is achieved, when liquid needs to be pumped out, the second valve 484 and the fourth valve 486 are opened, the first valve 483 and the third valve 485 are closed, the liquid is changed from the moment to be equivalent to the liquid pump 48, and the liquid in the housing 43 is pumped back for the next use, only the valve is needed to be switched, and a water pump is not needed to be additionally configured, so that the cost is saved;

the inner wall of the housing 43 is provided with a fixed block 44, the bottom of the fixed block 44 is connected with a heating wire 42, liquid in the housing 43 can be low-temperature condensed paraffin such as paraffin, the liquid is solid at low temperature and is attached to the top of a smelting part, the top space of the smelting part is compensated more stably and difficultly, the heating wire 42 is electrified and heated when the work is finished, the paraffin is changed into liquid and can be randomly deformed, and the smelting part with different top surface shapes can be conveniently used next time;

as shown in fig. 4, a blocking assembly 5 is arranged at the bottom of the housing 43, the blocking assembly 5 includes a fixing ring 51 fixedly arranged on the inner wall of the bottom of the housing 43, a plurality of stacked baffles 52 slidably sleeved on the inner wall of the fixing ring 51 are fixed by welding, a clamping groove 522 is formed in one side of each baffle 52, a clamping block 521 is arranged between the clamping grooves 522 on the two baffles 52, the blocking assembly 5 is used for blocking the deformation of the elastic rubber film 41, when the placement of the refining piece is completed, the maximum outline is selected according to the outline shape of the refining piece, the corresponding baffles 52 are drawn out one by one until the maximum outline is covered, when the liquid flushing in the elastic rubber film 41 deforms, the elastic rubber film 41 in the non-outline shape can be limited from falling, so that the elastic rubber film 41 in the outline shape falls, and the gap of the refining piece with the inclined top surface is better complemented, and the sealing;

the first electromagnet and the second electromagnet are respectively installed on the inner wall of the baffle plate 52, the permanent magnet is installed on the outer wall of the baffle plate 52, the first electromagnet and the second electromagnet located on the outer ring baffle plate 52 and the permanent magnet located on the inner ring baffle plate 52 are of a matched structure, when the baffle plate 52 needs to be unfolded, the first electromagnet located on the outer ring only needs to be electrified, the first electromagnet and the permanent magnet located on the inner ring attract each other at the moment, the baffle plate 52 on one layer is enabled to be unfolded outwards, the first electromagnet and the second electromagnet on each baffle plate 52 are controlled by the controller independently, adaptive automatic adjustment can be carried out according to the shape profile of a smelting part, and the problems that manual adjustment is time-consuming and labor-consuming.

Example (b): when using this vacuum to refine the device, at first will treat the vertical annular section of thick bamboo 21 of putting into of steel spare that refines, its one end extends vacuum melting furnace main part 1 outside, utilize side air seal 3 to guarantee the leakproofness of panel side, utilize top air seal 4 to guarantee to refine the leakproofness at a top, can directly plug up its top when the cavity in the face of the middle part seting up the hole refines the piece, need not manual jam, both cooperations are used for maintaining the vacuum of vacuum melting furnace main part 1, make and need not to refine the piece before smelting and cut into the segment, the bottom has smelted afterwards and has fallen by oneself according to gravity, finally make whole automatic decline of smelting of piece finish, whole process need not manual operation, time saving and labor saving.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hood-type circulation mechanical vacuum refining device comprises a vacuum smelting furnace main body (1), and is characterized in that: one side of the vacuum melting furnace main body (1) is provided with a vacuumizing pipe (11), the top of the vacuum melting furnace main body (1) is provided with a furnace cover (2), the top of the furnace cover (2) is provided with an annular cylinder (21) in a penetrating manner, and the inner wall of the annular cylinder (21) is provided with a lateral air-tight device (3).

2. A mantle type circular flow mechanical vacuum refining apparatus as defined in claim 1, wherein: side airtight device (3) are including fan-shaped gasbag (31), one side of fan-shaped gasbag (31) is provided with tonifying qi gasbag (32), one side indent of fan-shaped gasbag (31) is equipped with interior portion of contracting (313), the inner wall of tonifying qi gasbag (32) corresponds the slip and is provided with piston plate (321), two slip cup joint arc cover (322) between piston plate (321), fixed roller (324) are installed to the both sides correspondence of tonifying qi gasbag (32), the wraparound has volute spring (325) on fixed roller (324), volute spring (325) passes the outer wall of tonifying qi gasbag (32), and volute spring (325)'s one end is connected with piston plate (321).

3. A mantle type circular flow mechanical vacuum refining apparatus as defined in claim 2, wherein: the top and the bottom of the fan-shaped air bag (31) are correspondingly provided with grooves (311), and the inner wall of each groove (311) is uniformly provided with contact rollers (312) in a rotating manner.

4. A mantle type circular flow mechanical vacuum refining apparatus as defined in claim 3, wherein: the top of bell (2) is provided with top airtight device (4), top airtight device (4) includes housing (43), the inner wall of housing (43) is fixed with elastic rubber membrane (41) through the bonding, one side of housing (43) link up and is provided with hose (45), the top of bell (2) is through welded fastening has fixed cover (461), there is rich pipe roller (46) inside of fixed cover (461) through bearing swing joint, hose (45) twines in the outside of rich pipe roller (46), and the end of hose (45) is fixed mutually with fixed cover (461), the both ends of rich pipe roller (46) are rotated and are connected with support (47), support (47) are installed at the top of bell (2), rolling motor (471) is installed to one side of support (47), the output shaft of rolling motor (471) is connected with rich pipe roller (46), the one end of hose (45) is connected with liquid pump (48), the feed liquor end of liquid pump (48) is connected with packing liquid case (49), guide rail (22) are installed to the top correspondence of bell (2), housing (43) and guide rail (22) sliding connection.

5. A hood-type circular flow mechanical vacuum refining apparatus according to claim 4, wherein: two ports of the liquid pump (48) are respectively connected with a first branch pipe (481) and a second branch pipe (482), a fourth valve (486) is arranged on the first branch pipe (481), a second valve (484) is arranged on the second branch pipe (482), a first valve (483) is arranged between the outlet end of the liquid pump (48) and the first branch pipe (481), and a third valve (485) is arranged between the inlet end of the liquid pump (48) and the second branch pipe (482).

6. A hood-type circular flow mechanical vacuum refining apparatus according to claim 5, wherein: the inner wall of the housing (43) is provided with a fixing block (44), and the bottom of the fixing block (44) is connected with a heating wire (42).

7. A mantle type circular flow mechanical vacuum refining apparatus as defined in claim 6, wherein: the bottom of housing (43) is provided with blocks subassembly (5), block subassembly (5) including fixed solid fixed ring (51) that sets up the bottom inner wall in housing (43), the inner wall of fixed ring (51) is through welded fastening have baffle (52) that the range upon range of form slip of a plurality of cup jointed, draw-in groove (522) have been seted up to one side of baffle (52), lie in on two baffle (52) be provided with fixture block (521) between draw-in groove (522).

8. A mantle type circular flow mechanical vacuum refining apparatus as defined in claim 7, wherein: the inner wall of the baffle (52) is respectively provided with a first electromagnet and a second electromagnet, the outer wall of the baffle (52) is provided with a permanent magnet, and the first electromagnet and the second electromagnet on the outer ring baffle (52) are matched with the permanent magnet on the inner ring baffle (52).