CN207521638U - A kind of accumulation of heat ball-type forge furnace - Google Patents
A kind of accumulation of heat ball-type forge furnace Download PDFInfo
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- CN207521638U CN207521638U CN201721647382.2U CN201721647382U CN207521638U CN 207521638 U CN207521638 U CN 207521638U CN 201721647382 U CN201721647382 U CN 201721647382U CN 207521638 U CN207521638 U CN 207521638U
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- fire door
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Abstract
The utility model is related to a kind of accumulation of heat ball-type forge furnace, including：Furnace body, fire door, fire door elevating mechanism, combustion system and control system composition；It is characterized in that：Setting refractory lining in the furnace body, regenerative chamber is symmetrically set between refractory lining and furnace body, is intermediate equipped with burner hearth, filling heat-storing sphere in the regenerative chamber, top both sides set gas passage, the gas passage connects multiple burners, the burner exit is set a trap portion's negative pressure cavity, and local decompression's chamber is communicated with burner hearth.This programme air is sent by air blower by gas passage, then pass through heat-storing sphere, heat-storing sphere resistance is big, pressure is big, flow velocity is overflow, and the pressure of combustion gas is small, flow velocity degree is fast, area of fluidic vectoring thrust local decompression is generated in local decompression's chamber, vortex flow combustion gas is generated and forms the burning of disperse formula with air uniform stirring, make fuel gas buring uniform, temperature is uniform in burner hearth, and the thermal efficiency is high.
Description
Technical field
The present invention relates to a kind of forge furnaces.Belong to furnace apparatus technical field.
Background technology
In metallurgical industry, heating furnace is by metalliferous material or workpiece heat to the industrial furnace for being rolled into forging temperature.Add
Hot stove is applied throughout oil, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, material, light industry, daily use chemicals, pharmacy
Etc. many industry fields, for the heating before metal base or ingot forging and stamping.Material does not move when heating；It is not segmented in stove, it is desirable that each
It is uniform to locate furnace temperature, large steel ingot is heated and uses periodic temperature schedule.There are two types of chamber-type heating furnaces：Stationary furnace bottom batch-type furnace
And bogie-type furnace.
There are following problems for existing stationary furnace bottom batch-type furnace：Workpiece temperature positioned at upper furnace is high, positioned at stove
The workpiece temperature of thorax lower part is low, and workpiece uneven heating can influence product quality, influences the thermal efficiency and temperature of accumulation of heat ball-type heating furnace
The uniformity of degree.Meanwhile the service life of fire door is short, leakproofness can become worse and worse with the extension of time.
Invention content
The purpose of this utility model is that：First purpose overcomes in burner hearth workpiece uneven heating up and down, the thermal efficiency in burner hearth
The problem of low, the heat-storing sphere thermal efficiency for providing a kind of regenerative chamber is high, temperature uniformity in burner hearth.
Second purpose is for the leakproofness for extending the service life of fire door, strengthening fire door.Fire door is heating furnace input and output material
Channel, and fire door is then the significant points of fire door sealing and most weak position.Since fire door opens and closes frequent, hot and cold alternation
Variation is big, and mechanical collision also easily occurs for when input and output material, in addition fire door width is big, contact surface is long, and sealing is difficult, fire door these
Factor can make the service life of fire door shorten, leakproofness weakens.
What the purpose of this utility model was realized in：
A kind of accumulation of heat ball-type forge furnace, including：Furnace body, fire door, fire door elevating mechanism, combustion system and control system
Composition；It is characterized in that：Setting refractory lining, is symmetrically set with accumulation of heat in the furnace body between refractory lining and furnace body
Room, centre are equipped with burner hearth, and heat-storing sphere is filled in the regenerative chamber, and top both sides set gas passage, and the gas passage connection is more
A burner, the burner exit are set a trap portion's negative pressure cavity, and local decompression's chamber is communicated with burner hearth.This programme air is by air blower
It is sent by gas passage, then by heat-storing sphere, heat-storing sphere resistance is big, pressure is big, flow velocity is overflow, and the pressure of combustion gas is small, stream
Speed is fast, generates area of fluidic vectoring thrust local decompression in local decompression's chamber, generation vortex flow absorbs combustion gas and formed with air uniform stirring
Disperse formula is burnt, and makes fuel gas buring uniform, and temperature is uniform in burner hearth, and the thermal efficiency is high, and thermal effect interest rate is up to 80%.This scheme solves
First purpose.
Preferably, the refractory lining is combined using one-piece casting structure and prefabricated components, and the furnace body side, door pillar are adopted
With one-piece casting structure, the furnace body top uses prefabricated components.
Preferably, using thermal insulation material outside the furnace body, the thermal insulation material is high-strength light heat-preserving brick and fire resisting
Fiber thermal insulation blanket forms.
Preferably, insulating layer is formed using multi-layer refractory fibre blanket lay-up at the top of the furnace body, and fibrous layer topmost sets and pours
Material feeding protective layer.
Preferably, the fire door does frame, liner high-temperature refractory fiber module using formed steel construction.
Preferably, the burner arranges 10 per side, and bocca is located at upper furnace.
Preferably, the fire door elevating mechanism includes crossbeam, electric block, anchor chain, limiting device；On the fire door crossbeam
The electric block transmission in portion, drives anchor chain to open and close fire door, and fire door sets limiting device up and down.This solution solves the second purposes.
Preferably, the combustion system includes：Gas pipeline, air and flue system, compressed air pipe system.
Preferably, the control system includes temperature control, stove door switch and fire door elevating control, two-position four-way valve events
Control, combustion gas control, overtemperature alarm, natural gas superpressure low pressure alarming.
Description of the drawings
Fig. 1 is a kind of positive structure schematic of accumulation of heat ball-type forge furnace of the utility model；
Fig. 2 is a kind of side structure schematic diagram of accumulation of heat ball-type forge furnace of the utility model；
Fig. 3 is a kind of accumulation of heat ball-type forge furnace gas passage schematic diagram of the utility model；
Fig. 4 is a kind of accumulation of heat ball-type forge furnace combustion system schematic diagram of the utility model；
It is 1 furnace body in figure, 2 fire doors, 3 fire door elevating mechanisms, 4 combustion systems, 41 main valves, 42 flowmeters, 43 pressure reducing valves, 44 fast
Valve, 45 actuator ball valves, pressure meter switch, 47 solenoid valves, 5 control systems, 6 regenerative chambers, 7 burner hearths, 8 heat-storing spheres, 9 gases are cut to lead to
Road, 10 burners, 11 local decompression's chambers, 12 pulley blocks, 13 two-position four-way valves.
Specific embodiment：
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
As shown in attached drawing 1,2,3,4, a kind of accumulation of heat ball-type forge furnace, including：Furnace body 1, fire door 2, fire door elevator
Structure 3, combustion system 4 and control system 5 form；It is characterized in that：Setting refractory lining, refractory lining and stove in the furnace body 1
Regenerative chamber 6 is symmetrically set between body, is intermediate equipped with burner hearth 7, the interior filling heat-storing sphere 7 of the regenerative chamber 6, top both sides are set
Gas passage 9, the gas passage 9 connect multiple burners 10, and 10 exit of burner is set a trap portion's negative pressure cavity 11, the part
Negative pressure cavity 11 is communicated with burner hearth 7.This programme air is sent by air blower by gas passage, then passes through heat-storing sphere, heat-storing sphere
Resistance is big, pressure is big, flow velocity is overflow, and the pressure of combustion gas is small, flow velocity degree is fast, and fluidic vectoring thrust local decompression is generated in local decompression's chamber
Area generates vortex flow combustion gas and forms the burning of disperse formula with air uniform stirring, makes fuel gas buring uniform, temperature is uniform in burner hearth, heat
It is efficient.
The refractory lining is combined using one-piece casting structure and prefabricated components, and 1 side of furnace body, door pillar are using whole
Pouring structure, the furnace body top use prefabricated components.The prefabricated components material uses PA80 castables.The pouring material has
The features such as refractoriness is high, and thermal shock resistance is excellent, and anti-flame impingement aggressivity is good, and resistance to surface comes off, and service life is long, furnace wall pours
It builds material height and is more than thickness, lift joint anti-collision performance is good.Prefabricated components are using precast block, steel mould at the top of the furnace body
Block frame, prefabricated rear furnace body overhead thickness is uniform, and bending resistance is better than cast in situs processing performance, furnace body top
Component in-site installation on furnace wall, pour refractory concrete and fix at the top of furnace body by outside；
Using thermal insulation material, the thermal insulation material is protected for high-strength light heat-preserving brick and refractory fibre for 1 outside of furnace body
Warm blanket composition.This heat-insulating wall structure can effectively trap heat scatter and disappear, heat preservation energy-saving；
The 1 top insulating layer of furnace body is formed using multi-layer refractory fibre blanket lay-up, and fibrous layer topmost sets castable guarantor
Sheath；
The fire door 2 does frame, liner high-temperature refractory fiber module using formed steel construction.Furnace door frame shell uses 20mm
Steel plate welds, horizontal and vertical to set a plurality of channel steel and I-steel as rinforcement bar, internal to use high-temperature refractory fiber containing zirconium
Compression module, module middle part are equipped with heat resisting steel anchoring piece, and the lower part of fire door has been embedded in heat resisting casting bottom plate.During installation module it
Between mutually compress, anchoring piece is far from counter-fire face, and module is fixed on by welding form in fire door by anchoring piece, to avoid fire door
Mouth and flame contact, high temperature fiber surface are higher by fire door edge 50mm, and when fire door is closed, refractory fibre touches fire door fire resisting
Face, and firedoor frame leaves fire door 50mm.Fire door robustness greatly improves in this programme.
The fire door elevating mechanism：The electric block on fire door crossbeam top is driven, drive anchor chain keying fire door, above and below fire door
There is limiting device, upper limit travel switch is in fire door fully open position, and lower caging device is mounted on hoisting rope side, when
Fire door, which is fallen into place, to be postponed, and looseness of steel wire ropes, limiting device displacement is fallen on travel switch, is declined and is stopped, and this device can be with
It avoids hoist engine stroke excessive, hoist engine is avoided to damage, fire door lifting has remote control switch manipulation.Oven door sealing：Fire door lifts
Slideway is made of channel steel, and fire door both sides are walked there are four pulley blocks 12 in slideway, after fire door falls in place, outside four pulleys
There are four the actions of gas steel for side, fire door are tensed, the resistance to guncotton of fire door is tightly attached on fire door refractory wall, and fire door refractory fibre covers fire door
Edge 300mm, even if fire door has the mechanical damage less than 300mm, fire door can also remain turned-off sealing state, to prevent fire door resistance to
Fiery fiber is squeezed deformation after being tensed by cylinder, and cylinder tension travel also has limiting device so that fire door refractory fibre was both
Sealing can be kept, and certain decrement can be kept, is prevented without the compression placed restrictions on, until fire door steel plate is adjacent to fire door.
The burner 10 arranges 10 per side, and burner is located at upper furnace.In this way, flame distribution is uniform, although flame by
Burner hearth ejection suitable for reading, but due to being provided with local decompression's chamber, flame actually can inhale flowing in burner hearth there are one volume, and flame is from fire
Mouth flow to opposite furnace wall, then rolls up to furnace bottom, and cycle flame is formed in stove, the uniformity of furnace temperature is substantially increased, overcomes
In-furnace temperature inhomogeneities caused by crater position.
The combustion system includes：Gas pipeline, air and flue system, compressed air pipe system；The combustion
Burning system is set as impulsive switched burning, and when left side burner flame is burnt, burner smoke evacuation accumulation of heat in right side switches burning after N seconds,
Right side burner flame burning, left side burner smoke evacuation accumulation of heat, toward complex Alternating, switching burning so that heat storage fully stores in combustion chamber
Heat is sufficiently exothermic.
The gas pipeline is accessed by workshop total pipeline, total pipeline access workshop gas pipeline main valve 41, the total pipeline
Upper installation flowmeter 42, pressure reducing valve 43, repid cut-off valve 44, actuator ball valve 45, pressure gauge 46；If manifold pressure pressure reducing valve
43 should control to gaseous-pressure before burner in 8-10KPa；
The burner is equipped with gas electromagnetic valve 47.Combustion gas adjusting is carried out, the different combustion state of each burner can be directed to
Individually it is effectively adjusted, the system accurately quick cut-out of adjustment, it is ensured that adjustment and security needs；
The end of stove gas pipeline is equipped with diffusion valve and diffuse channel, the emptying of gas pipeline during for stopping production for a long time
Displacement；
The air, ducted systems are channel of the combustion fan to port conveying combustion air, i.e., provide burning to fuel
Required oxygen has the compositions such as air blower, pipeline, elbow, two position and four-way reversing valve air ports；
The flue system is that the channel of inner flue gas of the stove is discharged by air-introduced machine strength, is exchanged for discharging through accumulation of heat
Flue gas after cooling；
The compressed air is the power source of all pneumatic apparatus in pipe-line system, and each road pipeline is respectively arranged with shut-off valve
And it with filtering, lubricates, the three linked piece of voltage regulation function, two-position four way change valve execution cylinder, oven door sealing cylinder is pneumatically held
The pneumatic elements such as row device, pressure switch are required to stable Pneumatic pressure.
The control system include temperature control, stove door switch and fire door elevating control, 13 action control of two-position four-way valve,
Combustion gas control, overtemperature alarm, natural gas superpressure low pressure alarming, emergency control；
The temperature control mainly has combustion gas Electric Actuator, temperature transmitter, the compositions such as frequency conversion air blower and PLC.Temperature
The signal of degree sensor enters PLC and the temperature of setting is compared, and makes the decision of heating and heat preservation.It is electronic to hold during heating
Row device valve opening opens to the maximum.Air blower is tuned to optimum value in proportion.Frequency is transferred to optimum value by air-introduced machine automatically simultaneously.
When temperature reaches set temperature, the PID regulating systems inside PLC control burnt gas valve aperture, air blower and air inducing unit frequency
Reach best heat preservation combustion frequency；
The stove door switch and fire door elevating control are controlled by remote controler, and stove door switch is opened with fire door lifting by limiting
It closes to interlock.When fire door is closed, the signal that limit switch is sent out disconnects the access that fire door rises.It is dynamic up and down to lock fire door
Make.When fire door is in opening, limit switch connects fire door lower channel, and fire door rises to certain position, encounter on
Limit switch, vertical motion stop.When fire door drops to support roller, looseness of steel wire ropes, lower position switch action, cylinder of then pulling
Action, fire door is tight；
The two-position four-way valve action control is used for converting the channel direction of air and combustion gas, and there is control system in commutating period
It commutates according to the set time of setting.Switch operation has switching signal to be fed back, once breaking down, can generate alarm
And show abort situation；
The combustion gas control is completed by Electric Actuator, and actuator is controlled according to temperature requirement linear regulation.Combustion gas
Flowing commutation has the electromagnetic valve switch in three-way pipeline to control.When one end is closed, the other end is opened.Actuation time and two four
Port valve synchronizes；
The overtemperature alarm：For furnace temperature of heating furnace because failure is after set temperature alert limit, Heating Furnace Control sends out report
Alert, repid cut-off valve automatically cuts off combustion gas, shows failure cause；
The natural gas superpressure low pressure alarming：Gas pressure sets bound, by pressure sensor to PLC, works as pressure
When power is beyond the bound of setting, system sends out alarm signal and automatically cuts off combustion gas；
The exhaust gas temperature overtemperature alarm：Heating furnace exhaust gas temperature is because failure is after set temperature alert limit, heating
Stove control sends out alarm, and repid cut-off valve automatically cuts off combustion gas, shows failure cause；
The emergency：When heating furnace breaks down, combustion gas manually can be quickly cut off, releases event
Barrier.
In the utility model unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of accumulation of heat ball-type forge furnace, including：Furnace body, fire door, fire door elevating mechanism, combustion system and control system group
Into；It is characterized in that：Setting refractory lining in the furnace body, be symmetrically set between refractory lining and furnace body regenerative chamber,
Centre is equipped with burner hearth, and heat-storing sphere is filled in the regenerative chamber, and top both sides set gas passage, and the gas passage connects multiple burnings
Mouth, the burner gas outlet are set a trap portion's negative pressure cavity, and local decompression's chamber is communicated with burner hearth.
2. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：The refractory lining is using whole
Pouring structure and prefabricated components combine, and the furnace body side, door pillar are using one-piece casting structure, and the furnace body top is using prefabricated
Component.
3. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：Using heat preservation outside the furnace body
Material, the thermal insulation material are formed for high-strength light heat-preserving brick and refractory fibre insulation blanket.
4. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：Insulating layer is adopted at the top of the furnace body
It is formed with multi-layer refractory fibre blanket lay-up, fibrous layer topmost sets castable protective layer.
5. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：The fire door uses formed steel construction
Do frame, liner high-temperature refractory fiber module.
6. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：The burner arranges 10 per side
A, bocca is located at upper furnace.
7. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：The fire door elevating mechanism includes
Crossbeam, electric block, anchor chain, limiting device；The electric block transmission on the fire door crossbeam top, drives anchor chain to open and close fire door,
Fire door sets limiting device up and down.
8. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：The combustion system includes：Combustion
Feed channel, air, flue system, compressed air pipe system.
9. a kind of accumulation of heat ball-type forge furnace as described in claim 1, it is characterised in that：The control system includes temperature
Control, stove door switch and fire door elevating control, two-position four-way valve action control, combustion gas control, overtemperature alarm, natural gas superpressure are low
Pressure alarm, emergency control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721647382.2U CN207521638U (en) | 2017-12-01 | 2017-12-01 | A kind of accumulation of heat ball-type forge furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721647382.2U CN207521638U (en) | 2017-12-01 | 2017-12-01 | A kind of accumulation of heat ball-type forge furnace |
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| Publication Number | Publication Date |
|---|---|
| CN207521638U true CN207521638U (en) | 2018-06-22 |
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ID=62577446
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721647382.2U Active CN207521638U (en) | 2017-12-01 | 2017-12-01 | A kind of accumulation of heat ball-type forge furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580788A (en) * | 2018-07-03 | 2018-09-28 | 西安东威电炉设备有限公司 | A kind of multichannel passing-type furnace bottom and gas heating furnace |
| CN108687299A (en) * | 2018-08-09 | 2018-10-23 | 德清县鑫宏锻造有限公司 | Forge furnace |
-
2017
- 2017-12-01 CN CN201721647382.2U patent/CN207521638U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580788A (en) * | 2018-07-03 | 2018-09-28 | 西安东威电炉设备有限公司 | A kind of multichannel passing-type furnace bottom and gas heating furnace |
| CN108687299A (en) * | 2018-08-09 | 2018-10-23 | 德清县鑫宏锻造有限公司 | Forge furnace |
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