CN107906948B - A kind of horizontal-type high temperature hydrogen resistance furnace - Google Patents
A kind of horizontal-type high temperature hydrogen resistance furnace Download PDFInfo
- Publication number
- CN107906948B CN107906948B CN201711008342.8A CN201711008342A CN107906948B CN 107906948 B CN107906948 B CN 107906948B CN 201711008342 A CN201711008342 A CN 201711008342A CN 107906948 B CN107906948 B CN 107906948B
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- fire door
- furnace
- vault
- high temperature
- roller
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Classifications
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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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
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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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
-
- 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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/12—Arrangement of devices for charging
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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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/13—Arrangement of devices for discharging
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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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/14—Arrangements of heating devices
Abstract
The present invention relates to plate rolling process equipment technical field more particularly to a kind of horizontal-type high temperature hydrogen resistance furnaces.Horizontal-type high temperature hydrogen resistance furnace of the invention includes heating furnace and loading and unloading device, and the top of heating furnace is equipped with the double-deck top construction, and heating furnace is connect by fire door with loading and unloading device；Closed on fire door to be equipped with fire door able to turn on or off, fire door is moved horizontally to pressing on fire door by being dropped in front of fire door above fire door, and along the axial direction of fire door, to realize to the closed of fire door.The equipment can effectively prevent on the basis of meeting the demand for heat before heating large scale tungsten slab rolling and load-bearing hidden danger, poorly sealed safety in production hidden danger occur.
Description
Technical field
The present invention relates to plate rolling process equipment technical field more particularly to a kind of horizontal-type high temperature hydrogen resistance furnaces.
Background technique
Resistance furnace is chiefly used in heating, metal heat treatmet heating, soldering, powder metallurgy burning before metal forging in mechanical industry
The techniques such as knot, glass ceramics roasting and annealing, low-melting-point metal fusing, the drying of sand mold and paint film, are made using electric current
Heating element or heat medium fever in furnace, to be heated to workpiece or workpiece.And hydrogen resistance furnace using hydrogen to electric furnace into
Row protection, makes product be able to maintain bright in color, surface non-oxidation, and product rejection rate is extremely low.Hydrogen resistance furnace is applied in tungsten
And its annealing after the heating and rolling before alloy slab rolling has good effect.Hydrogen resistance furnace generally by heating furnace and
Its corollary system composition.
Existing hydrogen resistance furnace generallys use resistance heating manner, using hydrogen as protective atmosphere, operating temperature 1350
DEG C~1550 DEG C, maximum can heat tungsten slab weight no more than 300kg, slab outer dimension be no more than 800mm (L) ×
550mm (W) × 100mm (H), and for the demand for heat before large scale tungsten slab rolling, hydrogen resistance furnace should meet with
Lower principle: heating temperature is not less than 1600 DEG C, to guarantee the heating needs before tungsten and its alloy slab rolling；Temperature uniformity
Less than ± 10 DEG C, to meet the requirement of tungsten and its alloy slab rolling after annealing；It is not small that maximum can heat tungsten slab weight
In 1000KG；Maximum can heat tungsten size of plate blank not less than 1500 (L) × 1000 (W) × 150 (H)；When long suitable for high temperature
Between the needs that keep the temperature；The component and material of selection can high-temperature resistance hydrogen gas corrosions；Good security protection etc..
Therefore, existing hydrogen resistance furnace is unable to satisfy client to the demand for heat before large scale tungsten slab rolling, together
When can also face that furnace roof span is excessive and to cause load-bearing hidden danger and existing door structure to be opened and closed inconvenient, when closed with furnace
It is poorly sealed between body, to be easy to cause hydrogen gas leakage, cause safety in production hidden danger.
Summary of the invention
(1) technical problems to be solved
The present invention provides a kind of horizontal-type high temperature hydrogen resistance furnaces, are meeting adding before heating large scale tungsten slab rolling
On the basis of heat demand, it can effectively prevent and load-bearing hidden danger, poorly sealed safety in production hidden danger occur.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of horizontal-type high temperature hydrogen resistance furnace, including heating furnace and
Loading and unloading device, the top of the heating furnace are equipped with the double-deck top construction, and the heating furnace is filled by fire door and the loading and unloading
Set connection；Closed on the fire door to be equipped with fire door able to turn on or off, the fire door above fire door by dropping in front of fire door, and edge
The axial direction of the fire door is moved horizontally to pressing on the fire door, to realize to the closed of the fire door.
Preferably, the bottom of the furnace lining is equipped with substrate, and standing around the substrate has inner furnace wall, the bilayer furnace roof
Structure includes interior vault and outer vault, and the top of the interior vault and outer vault is arched upward upwards, and the interior vault and outer vault
Between there are gap, the circumferential direction of the interior vault and the circumferential direction of outer vault are connect by skew block with the inner furnace wall respectively, sharp
It surrounds to form furnace lining inner cavity with the substrate, inner furnace wall and interior vault；The upper surface of the outer vault is equipped with furnace top insulation layer,
Vertical outside the inner furnace wall to have outer furnace wall, one end of the outer furnace wall is stood on the substrate, the other end and the furnace top insulation layer
Connection.
Preferably, the fire door is connected separately with lift drive mechanism and driving mechanism for opening or closing, the lift drive mechanism
The fire door is driven to go up and down between the front and top of fire door, the driving mechanism for opening or closing drives the fire door along the fire door
Axis horizontal it is mobile.
Preferably, the lift drive mechanism includes decelerating motor, upper shaft, sprocket wheel and guide post, the upper shaft
The sprocket wheel is respectively installed with outside both ends, two sprocket wheels pass through chain respectively and connect with fire door, the two sides point of the fire door
It is not sleeved on outside a guide post, the decelerating motor is installed on one end of the upper shaft, by driving the upper shaft
Rotation, to drive the sprocket wheel to rotate, the sprocket wheel passes through the folding and unfolding of chain described in rotate driving, to drive the fire door edge to lead
To column vertical lifting.
Preferably, the driving mechanism for opening or closing includes that cylinder, actuating arm and multistage link mechanism, the cylinder pass through driving
Arm is connect with multistage link mechanism, and the multistage link mechanism is connect by guide post with fire door, and the cylinder drives the drive
Swing arm rotation, in the case where the rotation of the actuating arm drives, the multistage link mechanism drives axial water of the fire door along fire door
Translation is dynamic, according to the rotational angle of the actuating arm, the multistage link mechanism can to the fire door move horizontally position into
The regulation of row multistage.
Preferably, the multistage link mechanism includes upper connecting rod, lower link and lower rotary shaft, the both ends difference of the upper connecting rod
Hinged by link block and the top of the guide post, the both ends of the lower link pass through the bottom of pivoted arm Yu the guide post respectively
End is hinged, and when the actuating arm rotates, the lower rotary shaft drives pivoted arm rotation by rotation, and pushes guiding by the pivoted arm
Column is mobile, to drive the link block to rotate relative to the upper connecting rod, to push axial horizontal shifting of the fire door along fire door
It is dynamic.
Preferably, the outer cover of the furnace lining is equipped with furnace shell, and the furnace shell is air tight structure, on the side wall of the furnace shell
Electrode mounting hole, monitoring air inlet, fire door mounting hole and furnace pressure detection hole, the fire door mounting hole is respectively equipped with to cover in fire door
Outside；Air inlet and thermocouple mounting hole are respectively equipped at the top of the furnace shell.
Preferably, heater, radiation shield, cooling jacket and at least a pair of of sealing tracheae, institute are respectively equipped in the furnace lining
State the top that heater is installed in the furnace lining, the radiation shield is arranged in the inside of the fire door, the cooling jacket with
The fire door connection, to be passed through coolant liquid into the fire door；Each pair of sealing tracheae is symmetrically arranged in the fire door
Two sides up and down, for hydrogen being passed through into the fire door to form fiery curtain in the fire door.
Preferably, the loading and unloading device includes:
At least two groups roller-way is oppositely arranged with the fire door, for the conveying work pieces into the fire door；
At least two roller-way driving mechanisms are connect with roller-way described in every group respectively；
Lifting truck is connected in the roller-way driving mechanism, can be moved along the guide rail level in the roller-way driving mechanism
It is dynamic；
Fork arm, one end are laid between roller-way described in each group, and the other end is mounted on the lifting by fork arm elevating mechanism
On truck, the lifting truck drives the fork arm vertical lifting.
Preferably, the horizontal-type high temperature hydrogen resistance furnace further include:
Atmosphere control system is connect with the furnace lining, for introducing gas into the furnace lining respectively；
It is connected in flue, one end and the furnace lining, the other end is set to outside the fire door, for that will give up in the furnace lining
Gas is drawn.
(3) beneficial effect
Above-mentioned technical proposal of the invention has the advantages that
1, in horizontal-type high temperature hydrogen resistance furnace of the invention, the top of heating furnace is equipped with the double-deck top construction, utilizes bilayer
Top construction reinforces furnace roof, and effectively heat-insulated to furnace roof progress, to mitigate the load-bearing pressure of furnace roof；At the same time, on fire door
Closed to be equipped with fire door able to turn on or off, fire door amount of movement in opening and closing is smaller, and can seal pressing when closed on fire door, real
Now to the closed of fire door, so that the equipment is on the basis for meeting the demand for heat before heating large scale tungsten slab rolling
On, it effectively prevent load-bearing hidden danger, poorly sealed safety in production hidden danger occur.
2, in horizontal-type high temperature hydrogen resistance furnace of the invention, fire door moves under the driving effect of multistage link mechanism, energy
Enough realize lifting position it is continuously adjustable, four sections of open position it is adjustable, to further increase fire door to the leakproofness of fire door, more have
The efficiency for improving fire door opening and closing of effect, avoids because workpiece size is excessive, and causes furnace gas closed when workpiece passes in and out fire door
The not tight problem of property.
3, in horizontal-type high temperature hydrogen resistance furnace of the invention, quick feeding, multiple groups feeding roller are realized by loading and unloading device
Road operates parallel, can effectively improve feeding efficiency, and every group of roller-way is operated alone, and can according to need opening and closing roller-way in real time,
To save production cost.
4, in horizontal-type high temperature hydrogen resistance furnace of the invention, loading and unloading device drives fork arm to move horizontally using lifting truck
And efficient loading and unloading is realized in lifting, the combination transmitted using fork arm and roller-way, and then realizes pipelining production, is effectively improved
Production efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the horizontal-type high temperature hydrogen resistance furnace of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the heating furnace of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the double-deck top construction of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the fire door of the embodiment of the present invention；
Fig. 5 be the embodiment of the present invention it is door opened when status diagram；
Fig. 6 is the status diagram when fire door of the embodiment of the present invention is closed；
Fig. 7 is the structural schematic diagram of the loading and unloading device of the embodiment of the present invention.
Wherein, 1, furnace shell；2, furnace lining；3, thermocouple；4, heater；5, radiation shield；6, flue；7, lift drive mechanism；
8, driving mechanism for opening or closing；9, fire door；10, fire door；11, fork arm lifting apparatus；12, fork arm；13, roller-way；14, roller-way driving machine
Structure；15, skeleton；16, guardrail；17, truck is gone up and down；18, fork arm elevating mechanism；19, substrate；20, inner furnace wall；21, outer furnace wall；
22, skew block；23, interior vault；24, outer vault；25, furnace top insulation layer；26, upper shaft；27, sprocket wheel；28, decelerating motor；29,
Rolling bearing units；30, short axle；31, guide post；32, directive wheel；33, connecting plate；34, cylinder saddle；35, cylinder；36, actuating arm；
37, bracket；38, lower link；39, lower rotary shaft；40, pivoted arm；41, upper connecting rod；42, link block；43, chain.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
As shown in Figure 1, present embodiments providing a kind of horizontal-type high temperature hydrogen resistance furnace, which includes heating furnace and handling
Expect device, 9 front of fire door of heating furnace is arranged in loading and unloading device, so that heating furnace is correspondingly connected with loading and unloading device, dress
Device for discharging is used to for workpiece being sent into furnace lining 2 by the fire door 9 of heating furnace and takes out the production processed in self-heating furnace
Product.
As shown in Fig. 2, the heating furnace of the present embodiment includes but is not limited to furnace shell 1, furnace lining 2, fire door 10, heater 4, reflection
Screen 5, electrode, thermocouple 3 and fork arm lifting apparatus 11.Wherein, the top of furnace lining 2 is equipped with the double-deck top construction, utilizes double-deck furnace
Roof construction reinforces furnace roof, and effectively heat-insulated to furnace roof progress, to mitigate the load-bearing pressure of furnace roof；At the same time, close on fire door 9
It closes and fire door 10 able to turn on or off is installed, fire door 10 is moved by dropping to 9 front of fire door above fire door 9, and along the axial level of fire door 9
It moves to pressing on fire door 9, to realize to the closed of fire door 9, since amount of movement is smaller in opening and closing for fire door 10, and when closed
Pressing can be sealed on fire door 9, so that the equipment is meeting the demand for heat before heating large scale tungsten slab rolling
On the basis of, it effectively prevent load-bearing hidden danger, poorly sealed safety in production hidden danger occur.
Specifically, standing around substrate 19 has inner furnace wall 20, double as shown in figure 3, the bottom of furnace lining 2 is equipped with substrate 19
Layer top construction includes interior vault 23 and outer vault 24, and the top of interior vault 23 and outer vault 24 is arched upward upwards, interior 23 He of vault
There are gap between outer vault 24, to directly bear against on vault after preventing bowed out top compression excessive deformation, thus for interior vault
Load-bearing provides good cushion space, improves the load bearing stength and stability of the double-deck vault construction；The circumferential direction of interior vault 23 and outer
The circumferential direction of vault 24 is connect by skew block 22 with inner furnace wall 20 respectively, is surrounded using substrate 19, inner furnace wall 20 and interior vault 23
2 inner cavity of furnace lining is formed, is equipped with furnace top insulation layer 25 in the upper surface of outer vault 24；It is vertical outside inner furnace wall 20 to have outer furnace wall 21, outside
One end of furnace wall 21 is stood on substrate 19, and the other end is connect with furnace top insulation layer 25, to form second layer furnace outside furnace lining 2
Wall protection.
Wherein, substrate 19 is the brace foundation of entire 2 inner cavity of furnace lining, and inner furnace wall 20 is used to support furnace roof, and outer furnace wall 21 is used
In heat preservation, on this basis by muti-piece lower layer vault brick masonry at interior vault 23, and by muti-piece upper layer vault brick masonry at
Outer vault 24, and make between two layers of vault that there are a fixed gaps, furnace top insulation brick is sequentially piled up on outer vault 24, thus outside
The upper surface of vault 24 forms furnace top insulation layer 25.
The interior vault 23 of the bilayer top construction is when bearing up to 1600 DEG C of high temperature intracavitary in furnace lining 2, due to depositing
It is protected in the support of outer vault 24, interior vault 23 is only subjected to own wt；Although and outer vault 24 to bear self weight and
The dual-pressure of furnace top insulation layer 25, but have the thermal insulation protection of interior vault 23, then outer vault 24 is without being subjected to excessively high temperature,
Then its intensity is higher than interior vault 23, can bear furnace roof weight completely.Therefore, the double-deck top construction is protected mutually by two layers of vault
Shield, the common large scale high temperature hydrogen furnace operating temperature that solves is high, and the big problem of furnace roof span further improves the work of this equipment
Make temperature, so that the safety in production after the size of increasing 2 inner cavity of furnace lining has obtained powerful guarantee.
In order to meet production requirement, expand effective working region of heating furnace, it is preferred that 2 inner cavity of furnace lining of the present embodiment
Having a size of 1700 (L) × 1380 (W) × 380 (H) mm, flame retardant coating is equipped with inside furnace lining 2, outside is equipped with insulating layer, wherein fire resisting
Layer using import High purity corundum brick, insulating layer be followed successively by from the inside to the outside corundum brick, alumina bubble brick, light weeight alumina brick and
Ceramic fiber blanket, so that it is guaranteed that the heat-insulated effect with external insulation in the inside of furnace lining 2.
As shown in figure 4, the fire door 10 of the application is mounted on fire door 9, opened in input and output material, remaining time closes.Furnace
Door 10 can be realized oscilaltion in opening and closing, front and back is opened and closed, and wherein lifting position is continuously adjustable, and four sections of open position adjustable.
When fire door 10 is closed, the sealing of fire door 10 is pressed on fire door 9, realizes the sealing to fire door 9, and since the opening and closing of fire door 10 is imitated
Rate is high, opening and closing stroke is adjustable, and 10 clamping stagnation situation of fire door is effectively prevent to occur, and is capable of the effect of the opening and closing of Reasonable Regulation And Control fire door 10
Rate, so that protective gas excessively leaks when preventing workpiece from passing in and out, the fiery curtain upset and fire door 10 avoided the occurrence of in fire door 9 is closed
The problems such as poorly sealed after closing.
The fire door 10 of the present embodiment is connected separately with lift drive mechanism 7 and driving mechanism for opening or closing 8, lift drive mechanism 7
It is separately mounted on bracket 37 with driving mechanism for opening or closing 8, lift drive mechanism 7 drives fire door 10 in the front and top of fire door 9
Between go up and down, driving mechanism for opening or closing 8 drive fire door 10 moved along the axis horizontal of fire door 9, so that 10 realization level of fire door be made to open
Close and be vertically moved up or down movement.
Preferably, in the bracket 37 that is respectively arranged on the left side and the right side of fire door 10, lift drive mechanism 7 includes decelerating motor
28, upper shaft 26, sprocket wheel 27 and guide post 31, the both ends of upper shaft 26 are set in the top of bracket 37, and upper shaft 26
Both ends outside be respectively installed with sprocket wheel 27, two sprocket wheels 27 are connect by chain 43 with fire door 10 respectively, and the two sides of fire door 10 are divided
It is not sleeved on outside a guide post 31, decelerating motor 28 is installed on one end of upper shaft 26, is rotated by driving upper shaft 26, with band
Movable sprocket 27 rotates, and sprocket wheel 27 passes through the folding and unfolding of rotate driving chain 43, to drive fire door 10 along 31 vertical lifting of guide post.It opens
Closing driving mechanism 8 includes that cylinder 35, actuating arm 36 and multistage link mechanism, cylinder 35 are preferably fixed on branch by cylinder saddle 34
On frame 37, cylinder 35 is connect by actuating arm 36 with multistage link mechanism, and multistage link mechanism passes through guide post 31 and fire door 10
Connection, actuating arm 36 are driven by cylinder 35 and are rotated, and the rotation of actuating arm 36 can push multistage connecting rod mechanism movement, to drive furnace
Door 10 is moved horizontally along the axial direction of fire door 9, and by the change of the rotational angle of actuating arm 36, multistage link mechanism can be to fire door 10
Move horizontally position carry out multistage regulation.
In order to realize the multistage regulation to 10 shift position of fire door, preferably multistage link mechanism includes upper connecting rod 41, lower company
Bar 38 and lower rotary shaft 39, the both ends of upper connecting rod 41 pass through link block 42 respectively and the top of guide post 31 is hinged, specifically, connection
The end of the hinged upper connecting rod 41 in one end of block 42, the other end are hinged on the top of guide post 31 by a short axle 30, in this way when leading
When pushing or pull downward on upwards to column 31, short axle 30 drives link block 42 to rotate around upper connecting rod 41, so that it is more to form connecting rod
Duan Yundong；The both ends of upper connecting rod 41 are rotatably connected on two brackets 37 by rolling bearing units 29, to connect in guarantee
The rotation of bar 41 is accurate.The both ends of lower link 38 pass through pivoted arm 40 respectively and the bottom end of guide post 31 is hinged, and actuating arm 36 rotates
When, lower rotary shaft 39 drives pivoted arm 40 to rotate by rotation, and pushes guide post 31 mobile by pivoted arm 40, to drive link block 42
It is rotated relative to upper connecting rod 41, so that fire door 10 be pushed to move horizontally along the axial direction of fire door 9.
10 two sides of fire door are fixedly connected with connecting plate 33, several directive wheels are equipped between 10 side wall of fire door and connecting plate 33
32, guide post 31 is inserted between several directive wheels 32, to provide guidance and position-limiting action when fire door 10 opens and closes.
Fire door 10 when closed, as shown in figure 5, decelerating motor 28 drives upper shaft 26 and sprocket wheel 27 to rotate counterclockwise, chain
Taking turns 27 draw chains 43 falls fire door 10 along guide post 31；Cylinder 35 drives actuating arm 36 to rotate counterclockwise, drives lower rotary shaft
39 rotations pull guide post 31 to transport obliquely so that pivoted arm 40 be driven to rotate clockwise around lower rotary shaft 39 when pivoted arm 40 rotates
Dynamic, to pull link block 42 to rotate clockwise around upper connecting rod 41 by short axle 30, the movement of guide post 31 drives fire door 10
Along the axial movement of fire door 9, and then it is pressed on fire door 10 on fire door 9.
Fire door 10 is when opening, as shown in fig. 6, cylinder 35 drives actuating arm 36 to rotate clockwise, drives 39 turns of lower rotary shaft
It is dynamic, so that pivoted arm 40 be driven to rotate counterclockwise around lower rotary shaft 39, push guide post 31 to move obliquely when pivoted arm 40 rotates, from
And pulling link block 42 to rotate counterclockwise around upper connecting rod 41 by short axle 30, the movement of guide post 31 drives fire door 10 along fire door
9 axial movement, to be removed outward from fire door 9；Decelerating motor 28 drives upper shaft 26 and sprocket wheel 27 to rotate clockwise, and drags
Chain 43 rises fire door 10 along guide post 31.
The structure setting of the fire door 10 effectively prevent the opening and closing of fire door 10 of this equipment clamping stagnation occur；Using crank link mechanism
4 points of compressions for realizing fire door 10, greatly improve 10 leakproofness of fire door；It is led using double guide posts 31 cooperation at least eight half slot
It is the lifting guiding of fire door 10 to wheel 32, substantially increases the positioning accuracy of fire door 10, through practical application after a period of time, work
Reliably, 10 good seal of fire door does not occur 10 catching phenomenon of fire door, meets user usage requirements.
In order to cooperate the production work needs of this equipment, be also connected with cooling water channel on fire door 10, can water flowing cooling prevent
10 temperature distortion of fire door；It is additionally provided with exhaust outlet on fire door 10, and is fitted with ever-burning flame and monitoring thermocouple, exhaust gas is arranged by exhaust outlet
Out, it is lighted by ever-burning flame, monitors whether ever-burning flame extinguishes by monitoring thermocouple.
Preferably, fire door 9 is manufactured, to guarantee big ruler having a size of 1584 (W) × 218 (H) mm using high temperature stainless steel material
The disengaging of very little slab.Heater 4, radiation shield 5, cooling jacket and at least a pair of of sealing tracheae are respectively equipped in furnace lining 2.Heater
4 are installed on the top in furnace lining 2, it is preferred to use the manufacture of tungsten bar is lifted on roof of the furnace, the electricity of heater 4 by molybdenum system hook
Pole is led to outside furnace shell 1 by electrode mounting hole by 2 side of furnace lining, and electrode uses water cooling form, is filled and is sealed with 1 spiral shell of furnace shell, and
Other than furnace shell 1 and cable connection；The heating furnace of this equipment installs 6 heaters 4 altogether, every 21 group, totally 3 groups, installs 12 altogether
Branch electrode, every heater 42 electrodes of mating installation.The inside of fire door 9 is arranged in radiation shield 5, preferably by four layers of molybdenum sheet group
At, it is linked up with by molybdenum system and is lifted on 2 oral area of furnace lining, heat radiation of the reduction burner hearth high temperature to fire door 9.Cooling jacket and fire door 9 connect
It connects, to be passed through coolant liquid into fire door 9.The two sides up and down in fire door 9 are symmetrically arranged in each pair of sealing tracheae, are used for fire door
Hydrogen is passed through in 9 to form the fiery curtain of ever-burning flame in fire door 9.Thermocouple 3 at the top of furnace shell 1 by being inserted into fire door 9, this equipment
Fire door 9 in 4 thermocouples 3 are set altogether, wherein it is temperature thermocouple 3 that 3, which are temperature-control heat couple 3,1, be all made of W-Re heat
Galvanic couple 3.
Fork arm lifting apparatus 11, fork arm lifting apparatus 11 and loading and unloading device phase are also equipped on the outside of the fire door 9 of the application
Adaptation, is used cooperatively with loading and unloading device, plays Auxiliary support with the fork arm 12 to loading and unloading device.The fork arm lifting apparatus
11 include idler wheel, slide plate, linear guide, lift cylinder, close to switch.Fork arm lifting apparatus 11 is mounted on heating furnace fire door 9
Lower section.Specifically, the lower section outside fire door 9 is laid with two linear guides vertically, the slide plate bottom of the fork arm lifting apparatus 11 is set
There is sliding block, it can be along linear guide vertical motion under the driving for lifting cylinder.There are two idler wheels for dress at the top of slide plate.When taking on material,
It lifts cylinder and stretches out drive slide plate rise, make idler wheel support below the fork arm 12 of loading and unloading device, play Auxiliary support；Work as dress
Discharging complete when, lift cylinder retract drive slide plate fall, to avoid high-temperature baking slide plate and idler wheel, the fork arm is protected to lift dress
Set 11 safety；In addition, being connected on lifting cylinder in order to control the start and stop of the fork arm lifting apparatus 11 close to switch.
2 outer cover of furnace lining of the present embodiment is equipped with furnace shell 1, and furnace shell 1 is air tight structure, preferably steel plate and profile welding
Made of air-tightness rectangular housing；Be respectively equipped on the side wall of furnace shell 1 electrode mounting hole, monitoring air inlet, fire door mounting hole and
Furnace pressure detects hole, and fire door mounting hole covers outside fire door 9, and furnace shell 1 is preferably rectangular configuration, then preferred fire door mounting hole is arranged in furnace
Outside the fire door 9 of shell 1, setting furnace pressure detects hole, scattering device on the side wall of two sides on the side wall opposite with fire door mounting hole is equipped with
There are several electrode mounting holes and monitoring air inlet.The top of furnace shell 1 is respectively equipped with 3 mounting hole of air inlet and thermocouple, preferably exists
Bell is equipped at the top of furnace shell 1, bell is preferably welded using steel plate, and 1 top of furnace shell, centre fluorubber gasket are screwed on
Sealing.
As shown in fig. 7, the loading and unloading device of the application is mounted on heating furnace front and is connected with mill table 13, work is realized
Transmission of the part between heating furnace and mill table 13.The device includes at least two groups roller-way 13, compatible with 13 quantity of roller-way
Roller-way driving mechanism 14, lifting truck 17 and fork arm 12.
Specifically, one end of each group roller-way 13 is oppositely arranged with fire door 9, the other end is connected with mill table 13, is used for
The conveying work pieces between milling train and heating furnace, each roller-way driving mechanism 14 is connect with every group of roller-way 13 respectively, to control each group
The slewing rate of roller-way 13, to control the travel speed of workpiece, since each group roller-way 13 respectively drives, and each roller-way is driven
It links between mechanism 14, therefore the feeding for being driven separately or simultaneously multi-group workpiece may be implemented, it can be according to production-scale need
Production line is deployed in real time；Several rollers are sequentially arranged on every group of roller-way 13 respectively, 13 driving device of roller-way includes slowing down
Driving motor, electromagnetic clutch, drive shaft, bearing, driving wheel, drive chain and guide rail pass through driving wheel by deceleration motor
Each roller turn is driven with drive chain, each roller maximum linear velocity is up to 1000mm/s, 13 driving device of roller-way setting
There are three giving up the throne after advanced potential and one, and it can realize that acceleration-deceleration, speed are continuously adjustable.Lifting truck 17 is connected to roller-way drive
It on motivation structure 14, can be moved horizontally along the guide rail in roller-way driving mechanism 14, each lifting truck 17 is made along guide rail horizontal respectively
The linkage in direction is fed or individually feeding.One end of fork arm 12 is laid between roller-way 13 described in each group, and the other end passes through fork arm
Elevating mechanism 18 is mounted on lifting truck 17, and lifting truck 17 drives 12 vertical lifting of fork arm；On each lifting truck 17
Two molybdenum alloy fork arms 12 are at least installed, deceleration motor can also drive the lifting of lifting truck 17 and by fork arm 12
Realize that the picking-up of workpiece is put down.
When to heating furnace charge, after workpiece transfers across centering on any roller-way 13, lifting truck 17 is risen
Fork arm 12 at this time opens the fire door of heating furnace 10 to which roller-way 13 is left in workpiece picking-up, after lifting truck 17 advances in place,
Fork arm 12 declines to fall in workpiece on the siege in furnace lining 2, and lifting truck 17 is then retracted initial position, closes fire door
10。
When the discharging from inside to outside of self-heating furnace, first the fire door of heating furnace 10 is opened, after driving lifting truck 17 advances in place,
Workpiece picking-up is left siege by the rise of fork arm 12, and driving lifting truck 17 is retracted in place, added so that fork arm 12 drives workpiece to leave
Then hot stove declines fork arm 12 so that workpiece is fallen on any roller-way 13, is rotated by roller-way 13 and workpiece is transmitted on milling train,
Discharging finishes the fire door 10 for closing heating furnace in time.
Skeleton 15 and guardrail 16 are additionally provided in the loading and unloading device, skeleton 15 is welded using profile, is each section
Installation foundation；The outside of each component is equipped with guardrail 16 or backplate, and guardrail 16 and backplate are separately mounted on skeleton 15, thus
Each moving component on device is protected.
In order to produce and process needs, this equipment further includes flue 6, atmosphere control system, cooling system, pneumatic actuation system
System and electric-control system.
It is connected in one end of flue 6 and furnace lining 2, the other end is set to outside fire door 9, for drawing the exhaust gas in furnace lining 2；
It is preferred that flue 6 is mounted on the outside of furnace shell 1 close to the position of fire door 9, in order to which the exhaust gas at fire door 9 to be discharged in time.
Atmosphere control system is connect with furnace lining 2, and for introducing gas into furnace lining 2 respectively, which makes gas
Body is passed through the different parts in heating furnace by preset program, to realize flow and pressure control；In addition, the operation of the system is same
The production of heating furnace and the opening and closing interlocking action of fire door 10, form controllable air flow method and flow direction, thus effectively in furnace chamber
Guarantee the safe operation of equipment.
Specifically, atmosphere control system enters gas principle using hydrogen shield, nitrogen prepurging, and the gas flow being passed through can
It adjusts.The main control structure of the atmosphere control system includes shut-off valve, electro connecting pressure gauge, needle-valve, ball valve, flowmeter, electromagnetism
Valve, check-valves, fire arrester and air circuit connection pipeline.In conjunction with above structure, the ventilation branch which is equipped with include but
It is not limited to technique hydrogen branch, technique nitrogen branch, pressure maintaining hydrogen branch, pressure maintaining nitrogen branch, gas curtain hydrogen branch, ever-burning flame
Hydrogen branch, sample tap branch.
Technique hydrogen branch (or technique nitrogen branch) introduced at the top of furnace shell 1 it is intracavitary in furnace lining 2, for controlling temperature
Lifting and the protection to workpiece and heater 4 in production process.Wherein, technique nitrogen branch is also used to heat up preceding displacement
Intracavitary air in furnace lining 2 is flushed with hydrogen the quick-fried chance of hydrogen during gas to reduce, improves the safety of equipment.Pressure maintaining hydrogen branch
Road (or pressure maintaining nitrogen branch) is introduced from the two sides of furnace shell 1, guarantees micro-positive pressure in furnace when opening for fire door 10, to prevent air stream
Enter and cause hydrogen quick-fried, improves the safety of equipment.Gas curtain hydrogen branch is arranged in the upper and lower two sides of fire door 9, before the unlatching of fire door 10
Ventilation lights to form fiery curtain, enters furnace chamber, the hydrogen that burn-up fire door 9 overflows by fiery curtain burning isolation air.Ever-burning flame hydrogen
Branch is divided into two-way, is arranged in the downside of fire door 9 all the way, is divided into two-way, is ventilated by sealing tracheae to fire door 9, to heat
The furnace operating time phase burns to form fiery curtain, for lighting spilling hydrogen.Another way is arranged in 10 exhaust ports of fire door, for lighting
Hydrogen is discharged in exhaust outlet.Temperature-measuring heat couple is set in the port of ever-burning flame hydrogen, is used for outfiring alarm.The four of 1 bottom of furnace shell
A sample tap is respectively arranged in angle, and usually valve is closed, and valve is opened when needing to detect furnace atmosphere oxygen content or hydrogen purity and is taken
Sample.
Cooling system is used to provide cooling for fire door 9, fire door 10 and water cooled electrode, guarantees the safe operation of equipment, is adding
It is manually opened before hot stove heating；Cooling system includes that shut-off valve, electro connecting pressure gauge, filter, throttle valve, pipeline and temperature are opened
It closes, each branch cooling water flow is adjusted by each return water branch throttle valve, return water temperature is controlled, when return water temperature is more than 50 DEG C
When, temperature switch will export alarm signal.
Pneumatic system realizes the lifting of the front and back opening and closing and fork arm lifting apparatus 11 of fire door 10 using compressed air as power,
Pneumatic system include shut-off valve, electro connecting pressure gauge, filtering pressure reducing valve, reversal valve, cylinder 35, throttle valve be connected to it is above-mentioned each
The vent line of component.Pneumatic system can control the compression strength of fire door 10 by adjusting two filtering pressure reducing valve outlet pressures respectively
Strength is lifted with fork arm 12, can control 11 lifting speed of 10 opening and closing speed of fire door and fork arm lifting apparatus by adjusting throttle valve.
Electric-control system includes electric control system, temprature control unit, motor control part and controlling alarm part.Its
In, electric control system includes control cabinet, handheld box, relaying box and outside wiring.The sky of different size is mounted in control cabinet
Air cock shields to circuit as general supply and each section power switch.Use A.C. contactor as different electricity
Machine selection control, the output for using relay as each valve control.The operation and operation of equipment are to pass through programmable controller
(PLC) it realizes.Temperature controller is housed in the cabinet door of control cabinet, the process of heating is measured, show, is recorded, and according to
Setting value output control signal is sent to PLC, realizes and automatically controls.Voltmeter, ammeter, state instruction are also installed in cabinet door
Deng working condition and operating condition and indicating fault for observation device.It is protection hydrogen furnace in abnormal conditions (power-off)
In the case of normal work, which is further provided with ups power system to guarantee the power supply of control loop.
Temprature control unit: the computer heating control mode of this equipment is controlled with phase controlling current feedback power regulator
Heating power processed, thus furnace temperature can be made by predetermined heating.There are three heating zones in furnace, by 3 temperature controllers according to the temperature of setting
Degree carries out PID closed-loop control.In addition there are 3 W-Re temperature-controlling thermal couples to measure the temperature value in 3rd area respectively and feed back to temp controlled meter.Also
There are 1 W-Re temperature-measuring heat couple, directly detection in-furnace temperature, to realize the real-time monitoring to workpiece temperature.
Motor control part: this equipment is preferably equipped with 5 driving motors altogether, and 1 for controlling the deceleration of the lifting of fire door 10
28,1, motor for control the mobile deceleration control motor of lifting truck 17,2 motors gone up and down for controlling fork arm 12,1
A motor for being used to control roller-way 13.Every motor is equipped with 1 frequency converter.
Controlling alarm part: this equipment is for overtemperature, limit overtemperature, water temperature height, hydraulic pressure deficiency, ignition failure, H2 pressure
The abnormal conditions such as deficiency, N2 insufficient pressure, overload open circuit carry out sound-light alarm, and execute corresponding safeguard measure.But for
Overtemperature and water shortage failure do not execute safeguard measure not instead of at once, certain pre-warning time are given, if failing in pre-warning time
Debugging, equipment are carried out safeguard measure.Equipment breaks down after alarm, should observe indicating fault in time and determine reason, energy
The exclusion as early as possible excluded, or switch to manual work mode and take remedy or safeguard measure.
For the demand for heat before large scale tungsten slab rolling, hydrogen resistance furnace should meet following principle: heating temperature
Degree is not less than 1600 DEG C, to guarantee the heating needs before tungsten and its alloy slab rolling；Temperature uniformity is less than ± 10 DEG C, with
Meet the requirement of tungsten and its alloy slab rolling after annealing；Maximum can heat tungsten slab weight not less than 1000KG；It is maximum
Tungsten size of plate blank can be heated not less than 1500 (L) × 1000 (W) × 150 (H)；Needs suitable for high temperature long-time heat preservation；
The component and material of selection can high-temperature resistance hydrogen gas corrosions；Good security protection etc..
The technical parameter of horizontal-type high temperature hydrogen resistance furnace described in the present embodiment is as shown in table 1.
1 hydrogen resistance furnace technical data sheet of table
As can be seen from Table 1, horizontal-type high temperature hydrogen resistance furnace described in the present embodiment fully meets large scale tungsten slab
Workpiece size before rolling requires and every demand for heat, and through practical application after a period of time, kiln is stable and reliable in work,
Furnace body collapsing phenomenon does not occur and fiery curtain upsets phenomenon, therefore is meeting the demand for heat before heating large scale tungsten slab rolling
On the basis of, this equipment can effectively prevent load-bearing hidden danger, poorly sealed safety in production hidden danger occur；In addition, and comparative example
Used existing resistance furnace is compared, this equipment also has that temperature-controlled precision is high, heating power is strong, effective heating area temperature uniformity
Good advantage.
In conclusion the above embodiments have the advantages that
1, the top of heating furnace is equipped with the double-deck top construction, reinforces furnace roof using the double-deck top construction, and carry out to furnace roof
It is effectively heat-insulated, to mitigate the load-bearing pressure of furnace roof；At the same time, closed on fire door 9 that fire door 10 able to turn on or off, fire door are installed
10 opening and closing when amount of movement it is smaller, and when closed can seal pressing on fire door 9, realize to the closed of fire door 9 so that
The equipment on the basis of meeting the demand for heat before heating large scale tungsten slab rolling, effectively prevent occurring load-bearing hidden danger,
Poorly sealed safety in production hidden danger.
2, fire door 10 moves under the driving effect of multistage link mechanism, can be realized lifting position and is continuously adjusted, opens
Four sections of position is adjustable, to further increase fire door 10 to the leakproofness of fire door 9, more effectively improves the effect that fire door 10 opens and closes
Rate is avoided because workpiece size is excessive, and the problem for causing furnace gas airtightness not tight when workpiece passes in and out fire door 9.
3, quick feeding is realized by loading and unloading device, multiple groups feeding roller-way 13 operates parallel, can effectively improve feeding
Efficiency, and every group of roller-way 13 is operated alone, and can according to need opening and closing roller-way 13 in real time, to save production cost.
4, loading and unloading device drives fork arm 12 to move horizontally and go up and down using lifting truck 17, utilizes fork arm 12 and roller-way 13
Efficient loading and unloading is realized in the combination of transmission, and then realizes pipelining production, effectively improves production efficiency.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (6)
1. a kind of horizontal-type high temperature hydrogen resistance furnace, which is characterized in that including heating furnace and loading and unloading device, set in the heating furnace
There is furnace lining, the top of the furnace lining is equipped with the double-deck top construction, and the heating furnace is connect by fire door with the loading and unloading device；
Closed on the fire door to be equipped with fire door able to turn on or off, the fire door is dropped in front of fire door by fire door top, and along the furnace
The axial direction of mouth is moved horizontally to pressing on the fire door, to realize to the closed of the fire door；
Wherein, the fire door is connected separately with lift drive mechanism and driving mechanism for opening or closing, and the lift drive mechanism drives institute
It states fire door to go up and down between the front and top of fire door, the driving mechanism for opening or closing drives the fire door along the axis of the fire door
It moves horizontally；
The lift drive mechanism includes decelerating motor, upper shaft, sprocket wheel and guide post, is covered respectively outside the both ends of the upper shaft
Equipped with the sprocket wheel, two sprocket wheels pass through chain respectively and connect with fire door, and the two sides of the fire door are set in an institute
It states outside guide post, the decelerating motor is installed on one end of the upper shaft, by driving the upper shaft to rotate, to drive
Sprocket wheel rotation is stated, the sprocket wheel passes through the folding and unfolding of chain described in rotate driving, to drive the fire door along guide post vertical lifting；
The driving mechanism for opening or closing includes that cylinder, actuating arm and multistage link mechanism, the cylinder are connected by actuating arm and multistage
Linkage connection, the multistage link mechanism are connect by guide post with fire door, and the cylinder drives the actuating arm rotation,
Under the rotation of the actuating arm drives, the multistage link mechanism drives the fire door to move horizontally along the axial direction of fire door, according to
The rotational angle of the actuating arm, the multistage link mechanism can carry out multistage regulation to the position that moves horizontally of the fire door；
The multistage link mechanism includes upper connecting rod, lower link and lower rotary shaft, and the both ends of the upper connecting rod pass through link block respectively
Hinged with the top of the guide post, the both ends of the lower link pass through pivoted arm respectively and the bottom end of the guide post is hinged, institute
When stating actuating arm rotation, the lower rotary shaft drives pivoted arm rotation by rotation, and pushes guide post mobile by the pivoted arm, with
The link block is driven to rotate relative to the upper connecting rod, so that the fire door be pushed to move horizontally along the axial direction of fire door.
2. horizontal-type high temperature hydrogen resistance furnace according to claim 1, which is characterized in that the bottom of the furnace lining is equipped with lining
Bottom, standing around the substrate has inner furnace wall, and the bilayer top construction includes interior vault and outer vault, the interior vault and outer
The top of vault is arched upward upwards, and there are gap, the circumferential direction of the interior vault and outer vaults between the interior vault and outer vault
Circumferential direction connect with the inner furnace wall by skew block respectively, surround using the substrate, inner furnace wall and interior vault and to form furnace lining
Inner cavity；
The upper surface of the outer vault is equipped with furnace top insulation layer, and standing outside the inner furnace wall has outer furnace wall, and the one of the outer furnace wall
End is stood on the substrate, and the other end is connect with the furnace top insulation layer.
3. horizontal-type high temperature hydrogen resistance furnace according to claim 1, which is characterized in that the outer cover of the furnace lining is equipped with furnace
Shell, the furnace shell are air tight structure, and electrode mounting hole, monitoring air inlet, fire door peace are respectively equipped on the side wall of the furnace shell
It fills hole and furnace pressure detects hole, the fire door mounting hole covers outside fire door；Air inlet and thermoelectricity are respectively equipped at the top of the furnace shell
Even mounting hole.
4. horizontal-type high temperature hydrogen resistance furnace according to claim 1, which is characterized in that be respectively equipped with heating in the furnace lining
Device, radiation shield, cooling jacket and at least a pair of of sealing tracheae, the heater is installed on the top in the furnace lining, described anti-
The inside that the fire door is arranged in screen is penetrated, the cooling jacket is connect with the fire door, to be passed through coolant liquid into the fire door；
The two sides up and down in the fire door are symmetrically arranged in each pair of sealing tracheae, for be passed through into the fire door hydrogen with
Fiery curtain is formed in the fire door.
5. horizontal-type high temperature hydrogen resistance furnace according to claim 1, which is characterized in that the loading and unloading device includes:
At least two groups roller-way is oppositely arranged with the fire door, for the conveying work pieces into the fire door；
At least two roller-way driving mechanisms are connect with roller-way described in every group respectively；
Lifting truck is connected in the roller-way driving mechanism, can be moved horizontally along the guide rail in the roller-way driving mechanism；
Fork arm, one end are laid between roller-way described in each group, and the other end is mounted on the lifting truck by fork arm elevating mechanism
On, the lifting truck drives the fork arm vertical lifting.
6. horizontal-type high temperature hydrogen resistance furnace according to claim 1-5, which is characterized in that further include:
Atmosphere control system is connect with the furnace lining, for introducing gas into the furnace lining；
It is connected in flue, one end and the furnace lining, the other end is set to outside the fire door, for drawing the exhaust gas in the furnace lining
Out.
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| CN201711008342.8A CN107906948B (en) | 2017-10-25 | 2017-10-25 | A kind of horizontal-type high temperature hydrogen resistance furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI813845B (en) * | 2020-01-13 | 2023-09-01 | 秦文隆 | Lifting atmosphere sintering device |
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| CN201037731Y (en) * | 2007-04-05 | 2008-03-19 | 中钢集团耐火材料有限公司 | Structure integration high temperature kiln |
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| CN105004187A (en) * | 2015-09-01 | 2015-10-28 | 唐山亚捷机械有限公司 | Heating furnace door device |
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| CN86205750U (en) * | 1986-08-11 | 1987-11-18 | 孟凡谦 | Well type annealing furnace of wire stock |
| DE3627175C1 (en) * | 1986-08-11 | 1988-01-14 | Heraeus Gmbh W C | Muffle or chamber furnace |
| CN201037731Y (en) * | 2007-04-05 | 2008-03-19 | 中钢集团耐火材料有限公司 | Structure integration high temperature kiln |
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| TWI813845B (en) * | 2020-01-13 | 2023-09-01 | 秦文隆 | Lifting atmosphere sintering device |
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