CN217686611U - Furnace lining push-out device of induction furnace - Google Patents

Abstract

The application relates to the technical field of induction furnaces, in particular to a furnace lining pushing device of an induction furnace, which comprises a furnace body and a furnace lining, wherein the furnace lining is abutted against the inner wall of an induction coil in the furnace body, an embedded groove is formed in the inner wall of the bottom of the furnace body, a pushing block is embedded in the embedded groove, the pushing block is abutted against the furnace lining, and a connecting mechanism is fixed on the outer wall of the bottom of the furnace body; coupling mechanism with the caulking groove intercommunication, one side that coupling mechanism deviates from the furnace body is connected with the release hydro-cylinder, the piston rod of release hydro-cylinder passes coupling mechanism and with the connection can be dismantled to the release piece, and this application has the effect that improves demolising efficiency of furnace lining.

Description

Furnace lining push-out device of induction furnace

Technical Field

The application relates to the technical field of induction furnaces, in particular to a furnace lining push-out device of an induction furnace.

Background

The working principle of the induction furnace is that an alternating magnetic field generated by electrifying an induction coil acts on magnetic conduction furnace burden in the furnace to heat and melt the furnace burden. The furnace body for loading furnace charge mainly comprises a cage-shaped furnace shell, a supporting furnace frame, an induction coil, a magnetic yoke and the like, and is erected through a tilting mechanism. The induction coil is arranged inside the furnace shell, the magnetic yoke is arranged outside the induction coil and clings to the outer arc surface of the coil, and furnace burden to be melted is loaded inside the cylindrical coil. In order to contain furnace burden and molten steel, a lining made of refractory material with a certain thickness is built along the inner arc surface of the coil, and the lining is specially called as a furnace lining. The furnace lining is directly contacted with the furnace charge or molten steel after the furnace charge is melted. After the furnace lining is built, furnace charge can be filled in the furnace lining for melting operation. Along with the abrasion of the charging materials and the corrosion of molten steel, the furnace lining with a certain thickness can be gradually thinned until the contained molten steel possibly penetrates through the furnace lining to corrode the induction coil, the service life of the furnace lining is limited, and at the moment, the scrapped furnace lining needs to be dismantled and a new furnace lining needs to be built again.

The existing mode of dismantling the scrapped furnace lining is mainly realized manually, and after the furnace lining is cooled down, a furnace repairing worker enters a hearth, drills the furnace wall by using an air pick, and removes the furnace lining tightly attached to the inner arc surface of the coil.

In order to solve the problems, the inventor thinks that the manual dismantling mode needs to wait until the furnace lining is cooled to the residual temperature acceptable to human bodies, the operation can be carried out manually, the cooling time of the furnace lining is about 10 hours, the manual dismantling operation time is about 12 hours, time and labor are wasted, the working efficiency is low, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of demolising of furnace lining, this application provides an induction furnace lining ejecting device.

The application provides a pair of induction furnace lining ejecting device adopts following technical scheme:

a furnace lining push-out device of an induction furnace comprises a furnace body and a furnace lining, wherein the furnace lining is abutted against the inner wall of an induction coil in the furnace body, an embedded groove is formed in the inner wall of the furnace bottom of the furnace body, a push-out block is embedded in the embedded groove and abutted against the furnace lining, and a connecting mechanism is fixed on the outer wall of the furnace bottom of the furnace body; the connecting mechanism is communicated with the caulking groove, one side of the connecting mechanism, which deviates from the furnace body, is connected with a push-out oil cylinder, and a piston rod of the push-out oil cylinder penetrates through the connecting mechanism and is detachably connected with the push-out block.

By adopting the technical scheme, after the scrapping of the furnace lining is confirmed, a worker uses specific equipment to tip the furnace body to be horizontal, then the push-out oil cylinder is installed on the side wall of the furnace bottom of the furnace body through the connecting mechanism, the piston rod of the push-out oil cylinder extends into the furnace body and is connected with the push-out block on the side wall of the furnace bottom, the push-out oil cylinder is started after the connection is completed, the piston rod of the push-out oil cylinder is ejected out of the cylinder barrel through hydraulic power to push the push-out block, then the push-out block pushes the whole furnace lining out of the furnace body under the action of thrust of the push-out block on the furnace lining, the whole push-out process does not need to wait for the cooling of the furnace lining, and the push-out block is ejected out at one time, so that the convenience and the rapidness are realized, and the dismantling efficiency of the furnace lining is greatly improved.

Optionally, the caulking groove is arranged on the inner wall of the furnace bottom at one side of the furnace body within the rotation range.

By adopting the technical scheme, after the furnace body is tilted to be horizontal, the front edge of the inner arc surface of the furnace body is the lower surface of the furnace lining, and due to the action of gravity, the friction force borne by the lower furnace lining is large, the push-out block is arranged on the inner wall of the furnace bottom at one side in the rotation range, so that the side with large friction force of the furnace lining obtains large thrust, and the push-out efficiency of the furnace lining is further improved.

Optionally, the push-out block is an iron block, and a magnetic part is fixed at one end of the piston rod of the push-out oil cylinder, which extends into the connecting mechanism.

By adopting the technical scheme, during actual installation, the push-out block is positioned in the furnace body, the connection between the piston rod of the push-out oil cylinder and the push-out block is difficult, and the magnetic force piece is arranged on the push-out oil cylinder, so that during push-out operation, the magnetic force piece is attracted with the iron push-out block to complete the push-out operation; after the furnace lining is ejected, the piston rod of the push-out oil cylinder is retracted, the push-out block and the magnetic part are automatically separated under the blocking of the inner wall of the caulking groove, the operation is convenient and rapid, the connection efficiency of the push-out oil cylinder and the push-out block is improved, and the push-out efficiency of the furnace lining is further improved.

Optionally, the furnace body is erected on a tilting mechanism, the tilting mechanism includes a rotating seat, a fixed seat rotatably disposed on the rotating seat, and a driving assembly disposed between the fixed seat and the rotating seat, and the furnace body is fixed on the fixed seat through a fastening assembly.

Through adopting above-mentioned technical scheme, pass through fastening component fixed mounting with the furnace body on tilting mechanism's fixing base, drive the fixing base through drive assembly and drive the furnace body and rotate on rotating the seat, realize the automation of furnace body and tumble, labour saving and time saving has practiced thrift the time cost.

Optionally, a discharge guide nozzle is arranged on the side wall of one side, facing the discharge hole of the furnace body, of the fixing seat.

Through adopting above-mentioned technical scheme, the ejection of compact guide nozzle of setting on the fixing base plays the guide effect at the furnace wall in-process of pushing out, has reduced the abandonment furnace wall and has taken place the unfixed possibility of slope falling point under factors such as self gravity in pushing out the in-process, and then has reduced the influence to the environment.

Optionally, a slag pot is arranged on one side of the tipping mechanism deviating from the rotation range of the furnace body.

By adopting the technical scheme, the furnace lining falls to the ground after being pushed out, fragments of the furnace lining fall everywhere and generate a large amount of dust to cause environmental pollution, and the slag pot is arranged at the falling part of the furnace lining to take the falling furnace lining, so that the furnace lining falls into the slag pot, and the possibility of pollution caused by the splashing of the fragments of the furnace lining all around is reduced.

Optionally, a blocking cover is arranged on the upper surface of the slag pot, and a driving piece for driving the blocking cover to rotate is arranged on the slag pot.

Through adopting above-mentioned technical scheme, after the slag ladle was taken the furnace lining, the furnace lining is cracked can produce a large amount of dusts unavoidably, sets up the fender lid that can rotate on the slag ladle upper surface, seals the slag ladle mouth after the furnace lining falls into the slag ladle, has avoided the dust as far as possible to scatter, has further reduced the possibility that causes environmental pollution.

Optionally, a mica paper layer is arranged on the inner wall of the induction coil in the furnace body.

By adopting the technical scheme, the furnace body and the furnace lining are bonded tightly in the long-term use process, the friction force between the furnace lining and the coil in the furnace body is large when the furnace lining is pushed out, the coil can be damaged when the furnace lining is pushed out through the push-out block, the furnace lining is only rubbed with the smooth mica paper layer when being pushed out through the mica paper layer, and the possibility of damaging the coil is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pushing-out block is pushed by the pushing-out oil cylinder, so that the furnace lining is pushed out from the furnace body, a person is not required to be in close contact with the furnace lining when the furnace is disassembled, the operation can be performed without waiting for the complete cooling of the furnace lining, the time for waiting for the cooling of the furnace lining is shortened, meanwhile, the manual furnace disassembling operation time is long, the integral disassembling of the furnace lining can be completed only in a few minutes through the pushing-out device, the operation is convenient and rapid, and the disassembling efficiency of the furnace lining is greatly improved.

2. The falling furnace lining is received and taken and kept off dust through the slag pot and the blocking cover, so that the possibility that the furnace lining fragments are scattered everywhere and generate a large amount of dust to cause environmental pollution is reduced, and the pushing device is more environment-friendly and healthy.

3. The discharging guide nozzle plays a guiding role in the pushing-out process of the furnace lining, the possibility that the inclined falling point of the waste furnace lining is unfixed under the influence of factors such as self gravity and the like in the pushing-out process is reduced, and the influence on the environment is further reduced.

Drawings

FIG. 1 is an axial view of an embodiment of the present application, which mainly shows an overall structure of a lining pushing-out device of an electric induction furnace.

Fig. 2 is an axial view mainly showing the overall structure of the tilting mechanism in the embodiment of the present application.

FIG. 3 is a schematic full-section view mainly showing the structure in the furnace body in the embodiment of the present application.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Reference numerals: 1. a furnace body; 2. a furnace lining; 3. a tipping mechanism; 31. a rotating seat; 32. a fixed seat; 33. a drive assembly; 331. a first hinge mount; 332. a second hinge mount; 333. a hydraulic cylinder; 4. a fastening assembly; 41. a cage-type furnace shell; 42. a furnace cover; 5. a connector; 6. a hinge joint; 7. caulking grooves; 8. pushing out the block; 9. a connecting mechanism; 91. a sleeve; 92. positioning seats; 10. pushing out the oil cylinder; 11. a slot; 12. positioning a groove; 13. perforating holes; 14. a limiting groove; 141. an installation part; 142. a limiting part; 15. a limiting column; 16. a magnetic member; 17. a slag pot; 18. a blocking cover; 19. a drive member; 20. a discharge guide nozzle; 21. a mica paper layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses an induction furnace lining push-out device.

Referring to fig. 1, an induction furnace lining push-out device includes a tilting mechanism 3, a furnace body 1 and a lining 2, in this embodiment, the furnace body 1 is cylindrical, the furnace body 1 is installed on the tilting mechanism 3, the lining 2 is built on the inner wall of an induction coil in the furnace body 1, and the tilting mechanism 3 can drive the furnace body 1 and the lining 2 to rotate from a vertical state to a horizontal state, so as to facilitate the removal of the lining 2.

Referring to fig. 1 and 2, the tilting mechanism 3 includes a rotating base 31, two fixed bases 32 and two driving assemblies 33, the fixed bases 32 are rotatably mounted on the rotating base 31 through a rotating shaft, the two driving assemblies 33 are symmetrically arranged between the rotating base 31 and the fixed bases 32 and are used for supporting and driving the fixed bases 32 to rotate, and the furnace body 1 is inserted into the fixed bases 32 and is fixedly mounted on the fixed bases 32 through the fastening assemblies 4.

The driving assembly 33 comprises a first hinged seat 331, a second hinged seat 332 and a hydraulic oil cylinder 333, the first hinged seat 331 is welded and fixed on the rotating seat 31, the second hinged seat 332 is welded and fixed on the side wall of the fixed seat 32 facing the first hinged seat 331, one end of a piston rod of the hydraulic oil cylinder 333 is rotatably connected with the second hinged seat 332 through a connector 5 and a rotating shaft, the connector 5 is integrally formed with the piston rod of the hydraulic oil cylinder 333, one end of a cylinder barrel of the hydraulic oil cylinder 333 is rotatably arranged on the first hinged seat 331 through a hinged joint 6 and a rotating shaft, and the hinged joint 6 is integrally formed with the cylinder barrel of the hydraulic oil cylinder 333.

Referring to fig. 1, the fastening assembly 4 includes a cage-type furnace shell 41 and a furnace cover 42, the cage-type furnace shell 41 is fixedly sleeved on the outer wall of the furnace body 1, the cage-type furnace shell 41 and the fixing seat 32 are fixedly welded to the side wall of the bottom wall of the furnace body 1, the furnace cover 42 is covered on the outer wall of one end of the furnace body 1 located on the fixing seat 32 deviated from the bottom wall of the furnace body 1, the furnace cover 42 and the cage-type furnace shell 41 are fixedly connected through bolts, and then the furnace body 1 is fastened on the fixing seat 32.

Referring to fig. 3 and 4, an induction furnace lining push-out device further comprises a push-out block 8, a connecting mechanism 9 and a push-out oil cylinder 10, an embedded groove 7 is formed in the inner wall of the furnace bottom of the furnace body 1, the embedded groove 7 is formed in the inner wall of the furnace bottom of one side, located in the rotation range, of the furnace body 1, the push-out block 8 is embedded in the embedded groove 7, the side, facing a furnace opening, of the push-out block 8 is flush with the inner wall of the furnace bottom, the connecting mechanism 9 is inserted in the outer wall of the furnace bottom and is communicated with the embedded groove 7, the push-out oil cylinder 10 is installed on the furnace body 1 through the connecting mechanism 9, and a piston rod of the push-out oil cylinder 10 extends into the embedded groove 7 and is detachably connected with the push-out block 8.

Referring to fig. 4, coupling mechanism 9 includes sleeve 91 and positioning seat 92, circular slot 11 has been seted up on the stove bottom outer wall of furnace body 1, slot 11 and caulking groove 7 intercommunication, sleeve 91 is inserted and is established in slot 11, and sleeve 91 outer wall and slot 11 inner wall welded fastening, positioning seat 92 integrated into one piece deviates from the one end of furnace body 1 at sleeve 91, in this embodiment, positioning seat 92 is square piece, positioning seat 92 has seted up constant head tank 12 on deviating from the lateral wall of furnace body 1, constant head tank 12 runs through on being close to the inner wall of furnace body 1 and has seted up wear hole 13, wear hole 13 and the coaxial seting up of slot 11, the cylinder of release hydro-cylinder 10 piston rod one end is installed in constant head tank 12, the piston rod of release hydro-cylinder 10 passes wear hole 13 and sleeve 91 is connected with release piece 8.

Referring to fig. 4, the positioning seat 92 is different from the side wall of the positioning groove 12, and a limiting groove 14 is formed in a penetrating manner, the limiting groove 14 is communicated with the positioning groove 12, the limiting groove 14 includes an installation portion 141 and a limiting portion 142, the installation portion 141 is formed near the furnace body 1, and the limiting portion 142 is formed at the bottom of the installation portion 141 away from one side of the furnace body 1.

Referring to fig. 4, a magnetic member 16 is fixedly installed at the end of the piston rod of the pushing-out oil cylinder 10, in this embodiment, the magnetic member 16 may be a magnet, and the pushing-out block 8 is an iron block, when the removal operation is performed, the pushing-out oil cylinder 10 is started, the piston rod of the pushing-out oil cylinder 10 pushes the magnetic member 16 and is adsorbed on the pushing-out block 8, and the furnace lining 2 is pushed out through the pushing-out block 8; after the furnace lining 2 is dismantled, the piston rod of the push-out oil cylinder 10 is retracted, the push-out block 8 is blocked by the inner wall of the caulking groove 7 and then separated from the magnetic part 16, and the connection mode is convenient and quick.

Referring to fig. 1, a slag pot 17 is installed on one side of the rotating seat 31, which is far away from the driving assembly 33, and the slag pot 17 is used for accommodating the furnace lining 2 pushed out from the furnace body 1, so that the damage that fragments are splashed and a large amount of dust is generated when the furnace lining 2 falls to the ground is reduced.

Referring to fig. 1, slag ladle 17 top lid is equipped with keeps off lid 18, slag ladle 17 deviates from welded fastening and has the fixed plate on the lateral wall of rotating seat 31, driving piece 19 has been placed to the fixed plate, driving piece 19 includes but not limited to revolving cylinder, motors etc, the preferred revolving cylinder of driving piece 19 in this embodiment, keep off lid 18 and pass through bolt and revolving cylinder fixed connection, it rotates to keep off lid 18 through driving piece 19 drive, and then the realization is to the closure of slag ladle 17 opening, further reduced the dust and drifted away the possibility that causes environmental pollution from slag ladle 17 in.

Referring to fig. 1 and 3, a discharging guide nozzle 20 is welded and fixed on the side wall of the fixed seat 32 facing the discharging port of the furnace body 1, the discharging guide nozzle 20 is located on one side of the fixed seat 32 close to the rotating shaft, and the discharging guide nozzle 20 plays a role in guiding blanking in the pushing-out process of the furnace lining 2, so that the possibility that the inclined falling point of the waste furnace lining 2 is not fixed under the influence of factors such as self gravity in the pushing-out process is reduced, the possibility of danger occurrence is reduced, and the influence on the environment is also reduced.

Referring to fig. 3, the mica paper layer 21 is arranged on the inner wall of the induction coil in the furnace body 1, when the furnace lining 2 is built, the furnace lining 2 is abutted against the mica paper layer 21, and the mica paper layer 21 only generates friction with the smooth mica paper layer 21 when the furnace lining 2 is pushed out, so that the possibility of coil damage caused by friction between the furnace lining 2 and the induction coil is reduced.

The implementation principle of the furnace lining push-out device of the induction furnace in the embodiment of the application is as follows: when the furnace lining 2 in the induction furnace is scrapped, the tilting mechanism 3 overturns the furnace body 1 to be horizontal, then the push-out oil cylinder 10 is installed at the furnace bottom of the furnace body 1 through the connecting mechanism 9, and is connected with a piston rod of the push-out oil cylinder 10 and a push-out block 8 at the furnace bottom through the magnetic piece 16. After the connection is finished, the pushing-out oil cylinder 10 is started to push the pushing-out block 8, and further the furnace lining 2 is pushed out from the furnace body 1.

After the pushed-out furnace lining 2 falls into the slag pot 17, the blocking cover 18 shields the opening of the slag pot 17, so that the possibility of environment caused by the splashing of fragments and dust of the furnace lining 2 is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an induction furnace lining ejecting device, includes furnace body (1) and furnace lining (2), its characterized in that: the furnace lining (2) is abutted against the inner wall of an induction coil in the furnace body (1), an embedded groove (7) is formed in the inner wall of the furnace bottom of the furnace body (1), a push-out block (8) is embedded in the embedded groove (7), the push-out block (8) is abutted against the furnace lining (2), and a connecting mechanism (9) is fixed on the outer wall of the furnace bottom of the furnace body (1);

coupling mechanism (9) with caulking groove (7) intercommunication, one side that coupling mechanism (9) deviate from furnace body (1) is connected with and releases hydro-cylinder (10), the piston rod that releases hydro-cylinder (10) passes coupling mechanism (9) and with it can dismantle the connection to release piece (8).

2. The induction furnace lining push-out device according to claim 1, wherein: the caulking groove (7) is arranged on the inner wall of the furnace bottom at one side of the furnace body (1) within the rotation range.

3. The induction furnace lining push-out device according to claim 1, wherein: the push-out block (8) is an iron block, and a magnetic part (16) is fixed at one end of a piston rod of the push-out oil cylinder (10) extending into the connecting mechanism (9).

4. The induction furnace lining push-out device according to claim 1, wherein: the furnace body (1) is erected on the tilting mechanism (3), the tilting mechanism (3) comprises a rotating seat (31), a fixed seat (32) and a driving assembly (33), the fixed seat (32) is rotatably arranged on the rotating seat (31), the driving assembly (33) is arranged between the fixed seat (32) and the rotating seat (31), and the furnace body (1) is fixed on the fixed seat (32) through a fastening assembly (4).

5. The pushing-out device for the lining of the induction furnace according to claim 4, wherein: and a discharge guide nozzle (20) is arranged on the side wall of the fixed seat (32) facing one side of the discharge hole of the furnace body (1).

6. The pushing-out device for the lining of the induction furnace according to claim 4, wherein: and a slag pot (17) is arranged on one side of the tilting mechanism (3) deviating from the rotation range of the furnace body (1).

7. The pushing-out device for the lining of the induction furnace according to claim 6, wherein: the slag ladle is characterized in that a blocking cover (18) is arranged on the upper surface of the slag ladle (17), and a driving piece (19) for driving the blocking cover (18) to rotate is arranged on the slag ladle (17).

8. The pushing-out device for the lining of the induction furnace according to claim 1, wherein: the inner wall of the induction coil in the furnace body (1) is provided with a mica paper layer (21).

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