CN113074560A - Dust removal device of intermediate frequency furnace for casting - Google Patents
Dust removal device of intermediate frequency furnace for casting Download PDFInfo
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- CN113074560A CN113074560A CN202110464516.1A CN202110464516A CN113074560A CN 113074560 A CN113074560 A CN 113074560A CN 202110464516 A CN202110464516 A CN 202110464516A CN 113074560 A CN113074560 A CN 113074560A
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- intermediate frequency
- frequency furnace
- dust removal
- dust removing
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- 239000000428 dust Substances 0.000 title claims abstract description 272
- 238000005266 casting Methods 0.000 title claims abstract description 21
- 238000003723 Smelting Methods 0.000 claims abstract description 39
- 230000003028 elevating effect Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 11
- 241001417490 Sillaginidae Species 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/02—Crucible or pot furnaces with tilting or rocking arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
- F27B2014/0818—Discharging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a dust collector of intermediate frequency furnace for casting, belongs to the casting and smelts technical field for solve when smelting in the smelting process and when empting the problem that a dust collector can't satisfy the dust removal of two kinds of states, including dust excluding hood, pipeline components, dust removal motor, control assembly, rotary mechanism, elevating system, the dust excluding hood passes through pipeline components with the dust removal motor links to each other, rotary mechanism with elevating system all sets up on the pipeline components, realizes dust collector's rotation and lift, control assembly is used for control rotary mechanism with elevating system and dust removal motor realize dust collector's normal function. Through having designed the dust excluding hood that has rotation and raising and lowering functions, realized that the dust excluding hood position is adjustable, realized having first structural plane and second structural plane through the setting the dust excluding hood that has and realized can holding when smelting the intermediate frequency furnace fire door, also can cover the liquid outlet of intermediate frequency furnace when empting, realized removing dust comprehensively.
Description
Technical Field
The invention relates to the technical field of casting, in particular to an intermediate frequency furnace for smelting molten metal.
Background
The intermediate frequency furnace has the characteristics of high smelting speed, low cost and the like, and is used in a smelting stage for smelting alloy steel. Dust when the intermediate frequency furnace is smelted needs a lot less than electric arc furnace, refining furnace, so traditional intermediate frequency furnace dust removal mostly adopts dust removal fan to connect monomer rotation or remove the dust excluding hood.
The rotary dust hood is higher from the furnace body opening, and can be used simultaneously during smelting and liquid discharging. When liquid is discharged, the furnace platform of the intermediate frequency furnace can rotate 90 degrees, so that the distance between the furnace mouth of the intermediate frequency furnace and the rotary dust hood is lower, and the dust removal effect is better. However, when smelting, the rotary dust hood is too high away from the furnace mouth of the intermediate frequency furnace, so that a large part of smoke dust leaks outwards, and the dust removal effect is poor.
The movable dust hood is lower from the furnace mouth of the intermediate frequency furnace and can be used during smelting. Generally, a guide rail is required to be arranged beside a furnace body of the intermediate frequency furnace, so that the dust hood can move on the guide rail. When smelting, the dust hood is moved to the upper part of the furnace mouth of the intermediate frequency furnace, and the dust removal effect is better. When liquid is discharged, the furnace platform of the intermediate frequency furnace needs to rotate 90 degrees, and the dust hood needs to be moved to the position beside the furnace body of the intermediate frequency furnace before liquid is discharged, so that the dust hood cannot be used. And the movable dust hood track occupies a large position and is difficult to install.
Disclosure of Invention
In view of the above problem that the dust removing device of the intermediate frequency furnace in the prior art is always poor in effect during smelting and pouring, there is a need for a dust removing device of an intermediate frequency furnace for casting, which can remove dust in two modes, namely, molten metal smelting and pouring, and achieve a good dust removing effect.
The utility model provides a dust collector of intermediate frequency furnace for casting, includes dust excluding hood, pipeline subassembly, dust removal motor, control assembly, rotary mechanism, elevating system, the dust excluding hood passes through the pipeline subassembly with the dust removal motor links to each other, rotary mechanism with elevating system all sets up on the pipeline subassembly, is used for realizing dust collector's rotation and lift, control assembly is used for controlling rotary mechanism with elevating system and dust removal motor are used for realizing dust collector's normal function.
Furthermore, the dust hood is provided with a first structural surface and a second structural surface, the second structural surface is overlapped on the first structural surface to form a profile structure of the dust hood, the first structural surface is in an inverted cone shape, a through hole is formed in the conical top of the inverted cone shape, the through hole is connected with the pipeline assembly, and the pipeline assembly is further connected with the dust removal motor to enable impurities and dust collected by the dust hood in the smelting process to be led away from the dust hood; the outer contour of the second structural surface is rectangular, and the conical bottom surface of the first structural surface in the shape of the inverted cone is expanded along the width direction of the intermediate frequency furnace rotating platform until the expanded length is equal to the width of the intermediate frequency furnace rotating platform.
Furthermore, the first structure surface is used for collecting impurities and dust during molten metal smelting; the second structure surface is used for collecting impurities and dust generated when the molten metal is poured.
Furthermore, the caliber of the first structure surface is not smaller than the diameter of a furnace opening of the intermediate frequency furnace; the length of the rectangular second structural surface is not less than the width of the intermediate frequency furnace rotating platform.
Further, the pipeline assembly includes first dust removal pipeline, second dust removal pipeline, third dust removal pipeline and fourth dust removal pipeline, first dust removal pipeline one end links to each other with the dust removal motor, the other end links to each other with the one end of second dust removal pipeline, the other end and the one end of third dust removal pipeline of second dust removal pipeline are connected, the other end and the fourth dust removal pipeline of third dust removal pipeline are first, the other end of fourth dust removal pipeline with the through-hole at dust excluding hood vertex of a cone links to each other for the realization is drawn from miscellaneous, the dirt in the dust excluding hood.
Furthermore, the fourth dust removal pipeline has a telescopic function, so that the lifting function of the dust hood can be realized, specifically, the fourth dust removal pipeline has three sections of pipelines, and the inner diameters of the three sections of pipelines are sequentially increased from the direction of the third dust removal pipeline to the direction of the dust hood, so that the telescopic function of the fourth dust removal pipeline is realized.
Furthermore, in order to prevent the three-section pipeline from being disconnected in the telescopic process, the pipeline with the smaller inner diameter is provided with an outward hook, and the pipeline with the larger inner diameter is provided with an inward hook, so that the hooking relationship between the pipeline with the smaller inner diameter and the pipeline with the larger inner diameter is realized, and the telescopic pipeline is convenient to stretch.
The control assembly comprises a control cabinet, an operator and a terminal execution piece, the control cabinet is arranged near the intermediate frequency furnace, the operator is a movable handheld operator, and the terminal execution piece is arranged on the first dust removal pipeline and used for controlling the start and stop of dust removal operation.
The rotating mechanism comprises a rotating motor, a motor rotating gear, a pipeline rotating gear, a rotating motor bracket, a pipeline rotating part, a first rotating limit, a second rotating limit and a rotating limit rod; one end of the rotating motor support is connected with the third dust removal pipeline, namely one end of the rotating motor support is fixed on the third dust removal pipeline; the other end of the rotating motor bracket is connected with one end face of the motor rotating gear, and the other end face of the motor rotating gear is connected with the rotating motor; in order to realize the rotating function of the dust removing device, the second dust removing pipeline is split into a rotatable part and a fixed part, and a pipeline rotating gear is arranged on the edge of the rotatable part close to the fixed part of the second dust removing pipeline; a pipeline rotating part is further arranged above the pipeline rotating gear of the rotatable part of the second dust removing pipeline, the first rotating limit and the second rotating limit are both arranged on the pipeline rotating part, a rotating limiting rod is further arranged on the rotating motor support and used for limiting the rotating angle of the dust removing device; the motor rotating gear is meshed with the pipeline rotating gear, so that the rotating motor drives the dust removal device to rotate.
Elevating system includes elevator motor, lift supports frame, extensible member, flexible mounting and flexible support piece, lift supports frame sets up on the second dust removal pipeline, elevator motor sets up on the lift supports frame, be equipped with flexible mounting on elevator motor's the output shaft, flexible support piece sets up on pipe assembly, is used for supporting the extensible member, the one end of extensible member with flexible mounting links to each other, the other end links to each other with the dust excluding hood, and it is right to realize the promotion of dust excluding hood and put down the operation.
The dust removal device of the intermediate frequency furnace for casting comprises the following use processes:
1) the dust removal device is arranged near the intermediate frequency furnace, so that the dust removal cover can just cover a certain height range right above a furnace mouth of the intermediate frequency furnace; the dust removal device is provided with a smelting position and a dumping position, the dust removal cover is lifted at the smelting position to form a non-working state of the dust removal device, and the dust removal cover is lowered to the lowest position when the intermediate frequency furnace is smelted, so that the dust removal cover is as close to a furnace mouth of the intermediate frequency furnace as possible; when the intermediate frequency furnace is dumped, the dust hood is positioned at the dumping position and is lifted to be higher than the dumping device of the intermediate frequency furnace, so that impurities and dust can be collected as completely as possible;
2) before the molten metal is smelted in the intermediate frequency furnace, the dust removal cover is rotated to a position right above a furnace mouth of the intermediate frequency furnace through the operator, and the dust removal motor is started to start dust removal operation;
3) when smelting is finished and before metal liquid needs to be poured, the dust removal cover is rotated to an initial position through the operator, the lifting mechanism is started to lift the dust removal cover to the highest point, and then the dust removal cover is rotated to a position right above an inclined intermediate frequency furnace mouth;
4) and after the metal liquid is poured, the dust removal cover is rotated to the initial position through the operator, and the dust removal motor is stopped after the dust removal cover is put down.
The operation condition of the dust removal device in the whole working process of the intermediate frequency furnace is described above.
As an optimization of the technical scheme, in order to collect impurities and dust in the smelting process more comprehensively, a retractable and expandable curtain which can extend towards the furnace mouth direction of the intermediate frequency furnace is arranged at the edge of the dust hood, and the lowest point of the curtain can be in contact with the caliber edge of the intermediate frequency furnace or just not in contact with the caliber edge of the intermediate frequency furnace when the curtain is expanded, so that the flying of the impurities and dust in the smelting process is completely avoided. The dedusting device comprises a dedusting cover, a pipeline assembly, a dedusting motor, a control assembly, a rotating mechanism and a curtain, wherein the curtain is arranged on the end face of the dedusting cover opposite to a furnace opening of the intermediate frequency furnace. According to the technical scheme, the lifting mechanism is omitted, the curtain is added, and the collection of impurities and dust under two conditions of smelting and dumping can be realized.
As an optimization of the technical scheme, the length of the fourth dust removal pipeline is the length of the fourth dust removal cover under the height of the dust removal cover when the dust removal cover is toppled over.
The technical scheme of the invention has the beneficial effects that: through having designed the dust excluding hood that has rotation and raising and lowering functions, realized that the dust excluding hood position is adjustable, realized having first structural plane and second structural plane through the setting the dust excluding hood that has and realized can holding when smelting the intermediate frequency furnace fire door, also can cover the liquid outlet of intermediate frequency furnace when empting to comprehensive dust removal has been realized. Meanwhile, the dust removal device is simple in structure, convenient to install, simple to operate and high in working reliability.
Drawings
FIG. 1 is a schematic view of a dust removing apparatus of an intermediate frequency furnace;
FIG. 2 is a schematic view of the state of the dust removing device during smelting;
FIG. 3 is a schematic view showing a state of a dust removing device for pouring molten metal;
FIG. 4 is a schematic view of a three-segment pipe connection;
FIG. 5 is an enlarged schematic view of the rotation mechanism and the lift mechanism;
FIG. 6 is a schematic view of another dust removing device of the intermediate frequency furnace;
wherein, 1-intermediate frequency furnace hearth; 2-a control cabinet; 3-an operator; 4-intermediate frequency furnace rotating platform; 5-dust removal hood; 6-a first dust removal pipeline; 7-molten metal transfer package; 8-an electrically operated valve; 9-a second dust removal pipeline; 10-a first fixed pulley; 11-a first steel cord; 12-a wire rope joint; 13-intermediate frequency furnace; 14-a second steel cord; 15-a second fixed pulley; 16-a fourth dust removal duct; 17-lifting support frame; 18-a lift motor; 19-wire rope drums; 20-a third dust removal duct; 21-first rotational limit; 22-a pipe swivel; 23-a second rotational limit; 24-rotating the stop lever; 27-a pipe rotating gear; 28-rotating electrical machine support; 29-motor rotation gear; 30-a rotating electrical machine; 31-dust removal motor.
Detailed Description
In order to more clearly illustrate the technical solutions of the present invention, the technical solutions of the present invention are described in detail with reference to the accompanying drawings, and it is obvious that the following descriptions are some exemplary embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to the embodiments without creative efforts.
The technical scheme includes that the dust removal device of the intermediate frequency furnace for casting comprises a dust removal cover, a pipeline assembly, a dust removal motor, a control assembly, a rotating mechanism and a lifting mechanism, wherein the dust removal cover is connected with the dust removal motor through the pipeline assembly, the rotating mechanism and the lifting mechanism are both arranged on the pipeline assembly and used for achieving rotation and lifting of the dust removal device, and the control assembly is used for controlling the rotating mechanism, the lifting mechanism and the dust removal motor and used for achieving normal operation of the dust removal device. The problem of among the prior art when smelting and when empting the molten metal under these two kinds of different states, a dust collector can't effectively remove dust is solved.
Fig. 1 to 5 show a specific structure of a dust removing device of an intermediate frequency furnace for casting according to an embodiment of the present invention.
In this embodiment, the intermediate frequency furnace 13 is disposed on the intermediate frequency furnace hearth 1, and the dust removing device is also disposed on the intermediate frequency furnace hearth 1, the dust removing device includes a dust hood 5, a pipe assembly, a dust removing motor 31, a control assembly, a rotating mechanism and a lifting mechanism, wherein the pipe assembly includes a first dust removing pipe 6, a second dust removing pipe 9, a third dust removing pipe 20 and a fourth dust removing pipe 16, the control assembly includes a control cabinet 2, an operator 3 and a terminal actuator electric valve 8, the rotating mechanism includes a rotating motor 30, a rotating motor bracket 28, a motor rotating gear 29, a pipe rotating gear 27, a pipe rotating member 22, a first rotating limit 21, a second rotating limit 23 and a rotating limit rod 24, and the lifting mechanism includes a lifting support frame 17, a lifting motor 18, a first steel wire rope 11 and a steel wire rope joint 12 as telescopic members, a second steel wire rope 14, A wire rope reel 19 as a telescopic fixing member.
For a clearer description of the connection relationship between the respective components, reference will now be made to the dust removing motor 31.
The dust removal motor 31 is connected with one end of the first dust removal pipeline 6 which is horizontally arranged, so that impurities and dust in the dust removal cover 5 are led away from the dust removal cover 5 through a pipeline assembly; the other end of the first dust removal pipeline 6 is horizontally arranged and is connected with the lower end of the second dust removal pipeline 9, the high end of the second dust removal pipeline 9 is horizontally arranged and is connected with one end of the third dust removal pipeline 20, the other end of the third dust removal pipeline 20 is vertically arranged and is connected with one end of the third dust removal pipeline 16, and the other end of the fourth dust removal pipeline 16 is connected with the dust hood. The second dust removal pipeline 9 is divided into a movable part and a fixed part, the fixed part is positioned below the movable part, a pipeline rotating gear 27 is arranged at the lower edge of the movable part of the second dust removal pipeline 9, and the pipeline rotating gear 27 is sleeved at the edge of the movable part of the second dust removal pipeline 9 in a penetrating manner and is fixed with the movable part of the second dust removal pipeline 9 in a welding manner; a duct rotating part 22 is further arranged above the duct rotating gear 27, and the duct rotating part 22 can realize that the movable part of the second dust removing duct 9 rotates along the axis of the second dust removing duct 9, so as to drive the dust removing cover 5 to rotate; a first rotation limit 21 and a second rotation limit 23 are further arranged on the pipeline rotating part 22, and a rotation limit rod is arranged on a position, corresponding to the first rotation limit 21 and the second rotation limit 23, on the rotating motor bracket 28, so that the rotation angle of the dust hood 5 can be conveniently controlled; the welding of the one end of rotating electrical machines support 28 is in on the third dust removal pipeline 20, the other end of rotating electrical machines support 28 and the one end terminal surface lug connection of motor rotating gear 29, if can be welded connection, another terminal surface of motor rotating gear 29 links to each other with the output shaft of rotating electrical machines 30 to realize that rotating electrical machines 30 is rotatory to be driven motor rotating gear 29 is rotatory, motor rotating gear 29 with pipeline rotating gear 27 meshes, thereby drives the movable part rotation of second dust removal pipeline 9, also drives dust excluding hood 5 rotatory promptly. A lifting support frame 17 is further arranged on the fixed part of the second dust removal pipeline 9, the lifting support frame 17 is used for fixing and supporting the lifting motor 18, the output shaft of the lifting motor 18 is provided with the steel wire rope reel 19, one end of the first steel wire rope 11 is wound on the steel wire rope reel 19, the other end of the first steel wire rope 11 is connected with one end of the second steel wire rope 14 through a steel wire rope joint 12, and the other end of the second steel wire rope 14 is connected with the dust hood 5; in order to realize the rising and the decline function of dust excluding hood 5 to the different situation when conveniently smelting and when empting, fourth dust removal pipeline 16 sets up to extending structure, extending structure is the three section pipeline structure that can wear each other, specifically follows third dust removal pipeline 20 to the dust excluding hood direction, the internal diameter of three section pipeline increases gradually to realize wearing each other in order to shorten the purpose of third dust removal pipeline 20 length, after elevator motor 18 starts, through the mode of the winding extensible member of drive wire rope reel 19 to eminence pulling dust excluding hood 5, in-process that dust excluding hood 5 rises, the three section pipeline wears each other to overlap together, and when three pipeline all worn, wire rope was taut, stop the winding, also stopped the promotion action. In addition, in order to control dust removal conveniently, an electric valve 8 serving as a terminal executing part is further arranged on the first dust removal pipeline 6, the electric valve 8 is in communication connection with the control cabinet 2, and an operator can control the work or operation condition of the dust removal device through the operator 3.
The specific operation process of the dust removal device of the intermediate frequency furnace for casting is as follows:
1) adding a metal raw material to be melted into the intermediate frequency furnace 13;
2) lowering the dust hood 5 of the dust removal device to the lowest point, and starting the intermediate frequency furnace 13 to start smelting of molten metal;
3) in the smelting process, when raw materials need to be added into the intermediate frequency furnace 13, the dust hood 5 is lifted to a certain distance away from a furnace mouth of the intermediate frequency furnace 13, so long as the raw materials can be added smoothly, and after the raw materials are added, the dust hood is lowered to the lowest point again;
4) after smelting is finished, when metal liquid needs to be poured, the dust hood 5 is firstly lifted to the highest point, and then the dust hood 5 is rotated to the pouring position;
5) after the molten metal is poured, the dust hood 5 is rotated to a smelting position along with the resetting of the intermediate frequency furnace 13, and the dust hood 5 is kept at the highest position. And completing a cycle, namely the initial state of the dust removing device is in a smelting position and the dust removing cover is in a high position.
In another embodiment, the intermediate frequency furnace 13 is disposed on the intermediate frequency furnace hearth 1, the dust removing device is also disposed on the intermediate frequency furnace hearth 1, the dust removing device includes a dust removing hood 5, a pipe assembly, a dust removing motor 31, a control assembly, a rotating mechanism and a curtain 32, the pipe assembly includes a first dust removing pipe 6, a second dust removing pipe 9, a third dust removing pipe 20 and a fourth dust removing pipe 16, the control assembly includes a control cabinet 2, an operator 3 and an end effector electric valve 8, the rotating mechanism includes a rotating motor 30, a rotating motor bracket 28, a motor rotating gear 29, a pipe rotating gear 27, a pipe rotating member 22, a first rotating limit 21, a second rotating limit 23 and a rotating limit rod 24, the curtain 32 is disposed on an edge of the dust removing hood 5, and the direction of retracting and expanding of the curtain 32 is vertically downward, namely, the curtain 32 is expanded towards the furnace opening of the intermediate frequency furnace 13, and the lower edge of the curtain 32 just does not contact the furnace opening of the intermediate frequency furnace 13. In the embodiment, a lifting mechanism with a complex structure is removed, the curtain 32 with a simple structure is adopted, and the problem that impurities and dust are not completely collected due to the fact that the dust hood 5 is far away from the furnace mouth of the intermediate frequency furnace 13 during smelting is solved by the curtain 32, so that one dust removal device can be suitable for two different states during smelting and pouring.
The specific operation process of the dust removal device of the intermediate frequency furnace for casting is as follows:
1) adding a metal raw material to be melted into the intermediate frequency furnace 13, wherein the initial state of the dust removal device is that the dust removal device is at a smelting position and the curtain 32 is in a retracted state;
2) the curtain 32 is unfolded, and the intermediate frequency furnace 13 is started to melt molten metal;
3) in the smelting process, when raw materials need to be added into the intermediate frequency furnace 13, the curtain 32 is folded to a certain height so as to facilitate the addition of the raw materials, and after the addition of the raw materials is finished, the curtain 32 is immediately unfolded;
4) when the molten metal is smelted and needs to be poured, the curtain 32 is folded, and the dust hood 5 is rotated along with the pouring of the intermediate frequency furnace 13, so that the dust hood 5 can effectively collect impurities and dust until the pouring of the molten metal is finished; and the dust hood 5 is reset to the initial state along with the reset of the intermediate frequency furnace 13.
The above embodiment is only a description of a typical application of the technical solution of the present invention, and may be reasonably expanded without creative efforts.
Claims (9)
1. The utility model provides a dust collector of intermediate frequency furnace for casting, its characterized in that, includes dust excluding hood, pipeline subassembly, dust removal motor, control assembly, rotary mechanism, elevating system or heavy curtain, the dust excluding hood passes through pipeline subassembly with the dust removal motor links to each other, rotary mechanism with elevating system all sets up on the pipeline subassembly, is used for realizing dust collector's rotation and lift, the heavy curtain sets up on the dust excluding hood, control assembly is used for controlling rotary mechanism elevating system dust removal motor with the heavy curtain is used for realizing dust collector's normal operation.
2. The dust removing device for the intermediate frequency furnace for casting according to claim 1, wherein the dust removing hood has a structure that an end surface has a rectangular contour, a middle part is inverted cone-shaped, a diameter of a cone bottom of the inverted cone-shaped in the middle part is not smaller than a diameter of a furnace opening of the intermediate frequency furnace, and a length direction of the rectangular contour in the outer part is not smaller than a width of a rotary platform of the intermediate frequency furnace.
3. The dust removing device of the intermediate frequency furnace for casting according to claim 2, wherein the duct assembly includes a first dust removing duct, a second dust removing duct, a third dust removing duct, and a fourth dust removing duct, one end of the first dust removing duct is connected to the dust removing motor, the other end of the first dust removing duct is connected to one end of the second dust removing duct, the other end of the second dust removing duct is connected to one end of the third dust removing duct, the first other end of the third dust removing duct is connected to the fourth dust removing duct, and the other end of the fourth dust removing duct is connected to the through hole of the dust removing hood cone top; the fourth dust removal pipeline is provided with three sections of pipelines, and the inner diameters of the three sections of pipelines are sequentially increased from the direction of the third dust removal pipeline to the direction of the dust removal cover, so that the telescopic function of fourth dust removal fixation is realized.
4. The dust removing device of an intermediate frequency furnace for casting according to claim 3, wherein the rotating mechanism includes a rotating motor, a motor rotating gear, a pipe rotating gear, a rotating motor bracket, a pipe rotating member, a first rotation limit, a second rotation limit, a rotation limit rod; one end of the rotating motor support is connected with the third dust removal pipeline; the other end of the rotating motor bracket is connected with one end face of the motor rotating gear, and the other end face of the motor rotating gear is connected with the rotating motor; the edge of the rotatable part close to the fixed part of the second dust removal pipeline is provided with the pipeline rotating gear, the second dust removal pipeline is positioned above the pipeline rotating gear and is further provided with a pipeline rotating part, the first rotating limit and the second rotating limit are both arranged on the pipeline rotating part, the rotating motor support is further provided with a rotating limiting rod, the motor rotating gear is meshed with the pipeline rotating gear, and therefore the rotating motor drives the dust removal device to rotate.
5. The dust removing apparatus of an intermediate frequency furnace for casting according to claim 4, wherein the elevating mechanism includes an elevating motor, an elevating support frame, an expansion member, an expansion fixing member, and an expansion support member, the elevating support frame is disposed on the fixed portion of the second dust removing duct, the elevating motor is disposed on the elevating support frame, the expansion fixing member is disposed on an output shaft of the elevating motor, the expansion support member is disposed on the duct assembly to support the expansion member, and one end of the expansion member is connected to the expansion fixing member and the other end is connected to the dust removing cover.
6. The dust removing device of the intermediate frequency furnace for casting according to claim 5, wherein the operation process of the dust removing device is as follows:
adding a metal raw material to be melted into the intermediate frequency furnace;
lowering a dust removal cover of the dust removal device to the lowest point, and starting the intermediate frequency furnace to start smelting of molten metal;
in the smelting process, when raw materials need to be added into the intermediate frequency furnace, the dust hood is lifted to a certain distance away from a furnace mouth of the intermediate frequency furnace, so long as the raw materials can be smoothly added, and after the raw materials are added, the dust hood is immediately lowered to the lowest point again;
after smelting is finished, when metal liquid needs to be poured, the dust hood is lifted to the highest point, and then the dust hood is rotated to a pouring position;
and after the molten metal is poured, rotating the dust hood to a smelting position along with the resetting of the intermediate frequency furnace, and keeping the dust hood at the highest position unchanged.
7. The dust removing device for the intermediate frequency furnace for casting according to claim 4, wherein the curtain is provided on an end surface of the dust removing hood opposite to the furnace mouth of the intermediate frequency furnace.
8. The dust removing device of an intermediate frequency furnace for casting according to claim 7, wherein the curtain can be expanded toward the mouth of the intermediate frequency furnace, and the end of the curtain is in contact with or not in contact with the mouth of the intermediate frequency furnace.
9. The dust removing device of the intermediate frequency furnace for casting according to claim 8, wherein the operation process of the dust removing device is as follows:
adding a metal raw material to be melted into the intermediate frequency furnace;
the curtain is unfolded, and the intermediate frequency furnace is started to melt molten metal;
in the smelting process, when raw materials need to be added into the intermediate frequency furnace, the curtain is folded to a certain height so as to facilitate the addition of the raw materials, and after the addition of the raw materials is finished, the curtain is immediately unfolded;
when the molten metal is smelted and needs to be poured, the curtain is folded, and the dust removal cover is rotated along with the pouring of the intermediate frequency furnace, so that impurities and dust can be effectively collected by the dust removal cover until the pouring of the molten metal is finished; and then, along with the resetting of the intermediate frequency furnace, the dust hood is reset to an initial state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464516.1A CN113074560A (en) | 2021-04-28 | 2021-04-28 | Dust removal device of intermediate frequency furnace for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464516.1A CN113074560A (en) | 2021-04-28 | 2021-04-28 | Dust removal device of intermediate frequency furnace for casting |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192859Y (en) * | 1994-03-07 | 1995-03-22 | 杭州环境净化设备厂 | Low-suspension slewing dust eliminate collecting device for arc stove |
| JP2000199691A (en) * | 1998-12-28 | 2000-07-18 | Amano Corp | Dust collector for electric furnace |
| CN105499247A (en) * | 2015-12-31 | 2016-04-20 | 山东昌宁集团有限公司 | Rotary ceiling sucking dedusting system and dedusting method thereof |
| CN205980823U (en) * | 2016-08-30 | 2017-02-22 | 瑞安市三星防腐铸造有限公司 | Dust collecting equipment of intermediate frequency furnace |
| CN111729439A (en) * | 2020-08-27 | 2020-10-02 | 山东交通职业学院 | Environment-friendly foundry electric stove dust collector |
| CN212158182U (en) * | 2019-12-31 | 2020-12-15 | 四川秦岭科技有限公司 | Intermediate frequency smelting furnace flue gas collection device |
| CN212320449U (en) * | 2020-06-04 | 2021-01-08 | 河北利镔通用设备有限公司 | Movable dust collecting device |
-
2021
- 2021-04-28 CN CN202110464516.1A patent/CN113074560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192859Y (en) * | 1994-03-07 | 1995-03-22 | 杭州环境净化设备厂 | Low-suspension slewing dust eliminate collecting device for arc stove |
| JP2000199691A (en) * | 1998-12-28 | 2000-07-18 | Amano Corp | Dust collector for electric furnace |
| CN105499247A (en) * | 2015-12-31 | 2016-04-20 | 山东昌宁集团有限公司 | Rotary ceiling sucking dedusting system and dedusting method thereof |
| CN205980823U (en) * | 2016-08-30 | 2017-02-22 | 瑞安市三星防腐铸造有限公司 | Dust collecting equipment of intermediate frequency furnace |
| CN212158182U (en) * | 2019-12-31 | 2020-12-15 | 四川秦岭科技有限公司 | Intermediate frequency smelting furnace flue gas collection device |
| CN212320449U (en) * | 2020-06-04 | 2021-01-08 | 河北利镔通用设备有限公司 | Movable dust collecting device |
| CN111729439A (en) * | 2020-08-27 | 2020-10-02 | 山东交通职业学院 | Environment-friendly foundry electric stove dust collector |
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