CN110423860A - A kind of scrap steel preheating furnace - Google Patents
A kind of scrap steel preheating furnace Download PDFInfo
- Publication number
- CN110423860A CN110423860A CN201910826304.6A CN201910826304A CN110423860A CN 110423860 A CN110423860 A CN 110423860A CN 201910826304 A CN201910826304 A CN 201910826304A CN 110423860 A CN110423860 A CN 110423860A
- Authority
- CN
- China
- Prior art keywords
- steel
- hopper
- scrap
- flue gas
- tipburn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 128
- 239000010959 steel Substances 0.000 title claims abstract description 128
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000003546 flue gas Substances 0.000 claims abstract description 81
- 239000000779 smoke Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000005338 heat storage Methods 0.000 claims description 40
- 230000001172 regenerating effect Effects 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 17
- 230000003028 elevating effect Effects 0.000 claims description 8
- 239000003034 coal gas Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 22
- 238000010586 diagram Methods 0.000 description 15
- 239000001294 propane Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C21C5/562—Manufacture of steel by other methods starting from scrap
- C21C5/565—Preheating of scrap
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of scrap steel preheating furnaces, comprising: supporting steel frame is sequentially formed with feeding station, heating station and discharging station thereon；Strung alongside is at the top of the supporting steel frame for loading multiple steel scrap hoppers of steel scrap；It is arranged in below the supporting steel frame for providing the smoke circulating device of high-temperature flue gas from bottom to the steel scrap hopper；Hopper driving device for driving the steel scrap hopper mobile to the discharging station from the feeding station；And for from top to the tipburn device of the steel scrap hopper open fire heat supply.The scrap steel preheating furnace can carry out heat supply from top and bottom to steel scrap hopper respectively, have the advantages that heat supply is uniform.
Description
Technical field
The present invention relates to industrial furnace technology field more particularly to scrap steel preheating furnaces.
Background technique
Industrial furnace is that in the industrial production, the heat converted using fuel combustion or electric energy is heated material or workpiece
Thermal Equipment.Steel scrap refers to the ferrous waste (such as trimming, cutting head) for not becoming product in steel plant's production process and makes
Steel material in the equipment scrapped after, component.Steel scrap needs to be preheated before recycling, and scrap steel preheating can play energy conservation
Double action with steel-making production capacity is improved, gradually causes the attention of each steel mill in recent years.Existing scrap steel preheating furnace is usually
High-temperature flue gas device is set below steel scrap hopper to realize lower part high-temp combustion heat supply, existing defect are as follows: steel scrap hopper
Top be not provided with heating plant, so as to cause steel scrap hopper lower part steel scrap heat supply preferably and the steel scrap heat supply on top is poor,
Haves the defects that uneven heating.Therefore, it is necessary to study a kind of scrap steel preheating furnaces.
Summary of the invention
Shortcoming present in view of the above technology, the present invention provides a kind of uniform scrap steel preheating furnaces of heat supply.
The technical solution adopted by the present invention to solve the technical problems is: a kind of scrap steel preheating furnace, comprising: supporting steel frame,
It is sequentially formed with feeding station, heating station and discharging station thereon；Strung alongside is at the top of the supporting steel frame for loading
Multiple steel scrap hoppers of steel scrap；It is arranged below the supporting steel frame for providing high-temperature flue gas from bottom to the steel scrap hopper
Smoke circulating device；Hopper driving for driving the steel scrap hopper mobile to the discharging station from the feeding station
Device；And for from top to the tipburn device of the steel scrap hopper open fire heat supply.
Preferably, the top opening of the steel scrap hopper, bottom form several through-holes being passed through for hot fume.
Preferably, the supporting steel frame includes a main steel frame, the side steelframe that the opposite two sides of the main steel frame are arranged in,
In, spacing Q is preset between the main steel frame and the side steelframe.
Preferably, the hopper driving device includes a pair of of hopper mobile unit, and the hopper mobile unit includes a water
The translation beam of flat setting, one be located at below the translation beam and the lift beam parallel with the translation beam, be rotatably arranged on it is described
Be used to support on lift beam multiple wheel groups of the translation beam, be fixed at be used to support in civil engineering the wheel group it is multiple tiltedly
Rail chair, piston rod and the lift beam are pivotally connected to drive the wheel group to be slided on the inclined rail seat to realize the translation beam
The hydraulic cylinder of elevating movement, the Translation cylinder that drives the translation beam to move horizontally, wherein be equipped on the inclined rail seat and institute
The ramp that wheel group is matched and is obliquely installed is stated, the bottom of the translation beam is equipped with the track matched with the wheel group, institute
It states and is additionally provided with centering sliding rail on the opposite both ends of translation beam, be additionally provided in the civil engineering and matched with the centering sliding rail
Centering wheel unit, when the translation beam is lifted upwards, the top of the translation beam passes through the spacing Q and the steel scrap
The bottom of bucket offsets to realize the lifting of the steel scrap hopper.
Preferably, the smoke circulating device includes: a pair of two sides below the steel scrap hopper and is built-in with accumulation of heat
The heat storage tank of room；It is connected to the circulation line of heat storage tank described in side, heat storage tank and the steel scrap hopper described in the other side, it is described to follow
Endless tube road is divided into high-temperature flue gas pipeline and low-temperature flue gas pipeline；And multiple reversal valves on the circulation line are set；Its
In, be additionally provided on the circulation line for by by the regenerative chamber of side heat storage tank cooling after low-temperature flue gas pressurization send to
The regenerative chamber of other side heat storage tank is heated to being sent again after the condition of high temperature to the air-introduced machine of the steel scrap hopper, the air-introduced machine setting
On the low-temperature flue gas pipeline, heat supply burner is provided on the heat storage tank.
Preferably, the tipburn device includes tipburn bracket above the steel scrap hopper, is mounted on the tipburn
Multiple top burners on bracket and for driving the tipburn bracket to do the tipburn carriage drive of upper and lower direction elevating movement
Portion, wherein the top burner is located at the surface of the steel scrap hopper, length of the top burner along the tipburn bracket
Directional spreding.
Preferably, it is additionally provided on the tipburn bracket for providing the gas piping and use of coal gas to the top burner
In the first air pipeline to top burner offer air, wherein the bottom of the top burner forms one towards institute
The flame port of steel scrap hopper is stated, a coal gas interface being connected to the gas piping is formed on the side wall of the top burner
The first air interface being connected to one with first air pipeline.
Preferably, the two sides of the flame port of the top burner are provided with engine firewall, and the engine firewall is located at the top
The bottom of portion's burner.
Preferably, the top burner is blast furnace gas burner nozzle, is additionally provided with ever-burning flame burner in the top burner.
Preferably, bellows are additionally provided between the bottom and the smoke circulating device of the steel scrap hopper.
Compared with prior art, the present invention the beneficial effect is that: scrap steel preheating furnace provided by the invention, smoke circulating device energy
Enough to provide high-temperature flue gas from bottom to steel scrap hopper, tipburn device provides open fire from top to steel scrap hopper, has heat supply uniform
The advantages of；
Air-introduced machine is located on low-temperature flue gas pipeline, effectively extends the service life of air-introduced machine, to extend flue gas recirculation
The service life of device avoids frequent maintenance, effectively reduces use cost；
Smoke circulating device includes a pair of heat storage tank for being built-in with regenerative chamber, can be realized circulation heating, effectively reduces energy
Consumption；
Hopper driving device has the advantages that movement is steady reliable；
Two sides are provided with tipburn carriage drive portion below tipburn bracket, which can drive top burner to do
The elevating movement of upper and lower direction, when steel scrap hopper be in lifting operation when, top burner by the tipburn carriage drive portion also to
Upper lifting has the advantages that structure is simple, easy to use so that top burner be avoided to collide with steel scrap hopper.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the side-looking direction of scrap steel preheating furnace of the present invention；
Fig. 2 is supporting steel frame and positional diagram of the hopper driving device on overlook direction Z of the invention；
Fig. 3 is the structural schematic diagram of supporting steel frame of the invention；
Fig. 4 is the structural schematic diagram of hopper driving device of the invention on main view direction M；
Fig. 5 is the structural schematic diagram of hopper driving device of the invention on overlook direction Z；
Fig. 6 is the structural schematic diagram of inclined rail seat of the invention；
Fig. 7 is the structural schematic diagram of translation beam of the invention；
Fig. 8 is the positional relationship of supporting steel frame of the invention, steel scrap hopper, smoke circulating device and bellows on main view direction M
Schematic diagram；
Fig. 9 is the structural schematic diagram of tipburn device of the invention on overlook direction Z；
Figure 10 is the schematic diagram of the section structure in the direction N-N in Fig. 9；
Figure 11 is the structural schematic diagram of top burner of the invention；
Figure 12 is the structural schematic diagram of smoke circulating device of the invention on overlook direction Z；
Figure 13 is one of the connection schematic diagram of smoke circulating device of the invention；
Figure 14 is the two of the connection schematic diagram of smoke circulating device of the invention；
Figure 15 is the structural schematic diagram in tipburn carriage drive portion of the invention.
In figure: 10, supporting steel frame；11, main steel frame；12, side steelframe；20, steel scrap hopper；30, hopper driving device；31,
Translation beam；311, track；312, centering sliding rail；32, Translation cylinder；33, lift beam；34, wheel group；35, inclined rail seat；351, ramp；
352, limited block；36, hydraulic cylinder；37, centering wheel unit；40, smoke circulating device；41, heat storage tank；42, circulation line；43,
Heat supply burner；50, tipburn device；51, tipburn bracket；511, gas piping；512, the first air pipeline；513, propane pipeline；
514, the second air pipeline；52, top burner；521, flame port；522, coal gas interface；523, the first air interface；524,
Propane interface；525, the second air interface；53, tipburn carriage drive portion；531, Electrohydraulic push rod；532, swing arm unit；533, even
Connect frame；54, engine firewall；60, air-introduced machine；61, the first high-temperature flue gas pipeline；611, the first high-temperature flue gas reversal valve；62, second
High-temperature flue gas pipeline；621, the second high-temperature flue gas reversal valve；63, the first low-temperature flue gas pipeline；631, the first low-temperature flue gas commutates
Valve；64, the second low-temperature flue gas pipeline；641, the second low-temperature flue gas reversal valve；65, third low-temperature flue gas pipeline；651, third is low
Warm fume reversing valve；66, the 4th low-temperature flue gas pipeline；661, the 4th low-temperature flue gas reversal valve；70, civil engineering；80, bellows.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
As shown in Fig. 1 to Figure 15, the present invention provides a kind of scrap steel preheating furnaces, comprising: supporting steel frame 10, thereon successively shape
At having feeding station, heating station and discharging station, as shown in Figure 2 and Figure 4, the quantity of the feeding station is set as 1, work
Position A is the feeding station, and the quantity of the heating station is set as 6, and the quantity of the heating station is according to actual use
Depending on situation, station B~G is the heating station, and the quantity of the discharging station is set as 1, and station H is discharging station；
Strung alongside is at the top of the supporting steel frame 10 for loading multiple steel scrap hoppers 20 of steel scrap；It is arranged in the supporting steel frame 10
Lower section is used to provide multiple smoke circulating devices 40 of high-temperature flue gas from bottom to the steel scrap hopper 20, such as Fig. 2 and Figure 12 institute
Showing, it is preferred that the smoke circulating device 40 is arranged in a one-to-one correspondence with the heating station, certainly, the smoke circulating device
40 non-can also be arranged in a one-to-one correspondence with the heating station, and a smoke circulating device 40 can be to multiple heating
Station heat supply；Hopper driving device for driving the steel scrap hopper 20 mobile to the discharging station from the feeding station
30；And for from top to the tipburn device 50 of the 20 open fire heat supply of steel scrap hopper.
As an embodiment of this programme, as shown in Figure 1, the top opening of the steel scrap hopper 20, bottom form confession
Several through-hole (not shown) that hot fume is passed through.
As an embodiment of this programme, as shown in figures 1 and 3, the supporting steel frame 10 includes a main steel frame 11, setting
Side steelframe 12 in the opposite two sides of the main steel frame 11, wherein between being preset between the main steel frame 11 and the side steelframe 12
Away from Q, the main steel frame 11 and the side steelframe 12 are respectively fixedly disposed in civil engineering 70.
As an embodiment of this programme, as shown in Fig. 3 to Fig. 7, the hopper driving device 30 includes that a pair of of hopper moves
Moving cell, the hopper mobile unit include a horizontally disposed translation beam 31, one be located at 31 lower section of the translation beam and with institute
It states the parallel lift beam 33 of translation beam 31, be rotatably arranged on the multiple wheels for being used to support the translation beam 31 on the lift beam 33
Group 34 is fixed at multiple inclined rail seats 35 that the wheel group 34 is used to support in civil engineering 70, piston rod and the lift beam 33
Pivot joint is to drive the wheel group 34 to be slided on the inclined rail seat 35 to realize the hydraulic of the elevating movement of the translation beam 31
Cylinder 36, the Translation cylinder 32 for driving the translation beam 31 to move horizontally, wherein be equipped on the inclined rail seat 35 and the wheel group 34
The ramp 351 for matching and being obliquely installed, the bottom of the translation beam 31 are equipped with the track matched with the wheel group 34
311, centering sliding rail 312 is additionally provided on the opposite both ends of the translation beam 31, be additionally provided in the civil engineering 70 with it is described
The centering wheel unit 37 that centering sliding rail 312 matches, when 31 lifting upwards of translation beam, the top of the translation beam 31 is worn
The bottom for crossing the spacing Q and the steel scrap hopper 20 offsets to realize the lifting of the steel scrap hopper 20；In the present solution, such as
Shown in Fig. 6, the top end face of the inclined rail seat 35 tilts the ramp 351 so that the translation beam 31 is in the wheel group for one
34 and the hydraulic cylinder 36 under the action of the clinoplain that moves up and down, be additionally provided with one at the end portion of the ramp 351
Prevent the wheel group 34 from skidding off the limited block 352 of the ramp 351, the limited block 352 is detachably arranged at the inclined rail seat
On 35.
As an embodiment of this programme, as shown in figs. 1 and 12, the smoke circulating device 40 includes: that a pair is located at
The 20 lower section two sides of steel scrap hopper and the heat storage tank 41 for being built-in with regenerative chamber；It is connected to heat storage tank 41, other side institute described in side
The circulation line 42 of heat storage tank 41 and the steel scrap hopper 20 is stated, the circulation line 42 divides for high-temperature flue gas pipeline and low temperature cigarette
Feed channel, the high-temperature flue gas pipeline are the pipeline for conveying high-temperature flue gas, and the low-temperature flue gas pipeline is transporting low temperature flue gas
Pipeline；And multiple reversal valves on the circulation line 42 are set；Wherein, as shown in Figure 13 and Figure 14, the circulation pipe
It is additionally provided on road 42 for sending the low-temperature flue gas pressurization after the cooling of the regenerative chamber of side heat storage tank to other side accumulation of heat
The regenerative chamber of case is heated to sending again after the condition of high temperature to the air-introduced machine 60 of the steel scrap hopper 20, and the air-introduced machine 60 is arranged in institute
It states on low-temperature flue gas pipeline, is provided with heat supply burner 43 on the heat storage tank 41；The middle part of the heat storage tank 41 is formed with described
Regenerative chamber, the top of the heat storage tank are the combustion chamber being connected to the regenerative chamber, the lower part of the heat storage tank 41 be with it is described
Regenerative chamber is connected to the surge chamber siphoned away for caching cryogenic gas for the air-introduced machine 60.In the present solution, for convenience,
Side heat storage tank is known as the first heat storage tank, other side heat storage tank is known as the second heat storage tank, the heat supply on first heat storage tank
Burner is known as the first heat supply burner, the heat supply burner on the heat storage tank of the other side is known as the second heat supply burner, first heat storage tank
Interior regenerative chamber is known as the first regenerative chamber, the regenerative chamber in second heat storage tank is known as the second regenerative chamber；When in such as Figure 13
When shown working condition, at this point, the first heat supply burner is in combustion state, first regenerative chamber is in heat storage state,
The second heat supply burner is flameout state, and second regenerative chamber is in heat release state, is generated by the first heat supply burner
High-temperature flue gas by first regenerative chamber cooling after be in low-temperature flue gas, this is because in heat storage state it is described first store
Hot cell can absorb heat quickly to which high-temperature flue gas is changed into low-temperature flue gas, and the air-introduced machine 60 will be stored by described first
The low-temperature flue gas pressurization of hot cell cooling is sent to high-temperature flue gas is heated in second regenerative chamber, and second regenerative chamber can add
Hot low-temperature flue gas be because are as follows: second regenerative chamber is in heat release state, can quick release heat for heating low-temperature flue gas
So that low-temperature flue gas is changed into high-temperature flue gas, the air-introduced machine 60 again send high-temperature flue gas to the steel scrap hopper 20；When being in
When working condition as shown in figure 14, at this point, the first heat supply burner is in flameout state, first regenerative chamber is in heat release
State, the second heat supply burner are in combustion state, and second regenerative chamber is in heat storage state, are burnt by second heat supply
The high-temperature flue gas that mouth generates is in low-temperature flue gas after second regenerative chamber cooling, this is because described in heat storage state
Second regenerative chamber can absorb heat quickly to which high-temperature flue gas is changed into low-temperature flue gas, and the air-introduced machine 60 will be by described
The low-temperature flue gas pressurization of second regenerative chamber cooling is sent to being heated to high-temperature flue gas, first regenerative chamber in first regenerative chamber
Can heat low-temperature flue gas be because are as follows: first regenerative chamber is in heat release state, can quick release heat for heat it is low
Warm flue gas is so that low-temperature flue gas is changed into high-temperature flue gas, in the present solution, the work of first regenerative chamber and second regenerative chamber
It is opposite to make state.As shown in Figure 13 and Figure 14, the reversal valve includes one first high-temperature flue gas reversal valve 611, one second high temperature
Fume reversing valve 621, one first low-temperature flue gas reversal valve 631, one second low-temperature flue gas reversal valve 641, a third low-temperature flue gas
Reversal valve 651 and one the 4th low-temperature flue gas reversal valve 661；The circulation line 42 is provided with first high-temperature flue gas including one
First high-temperature flue gas pipeline 61, one of reversal valve 611 is provided with the second high-temperature flue gas of the second high-temperature flue gas reversal valve 621
The first low-temperature flue gas pipeline 63, one that pipeline 62, one is provided with the first low-temperature flue gas reversal valve 631 is provided with described second
Second low-temperature flue gas pipeline 64, one of low-temperature flue gas reversal valve 641 is provided with the third of the third low-temperature flue gas reversal valve 651
Low-temperature flue gas pipeline 65, one is provided with the 4th low-temperature flue gas pipeline 66 of the 4th low-temperature flue gas reversal valve 661；Wherein, institute
The one end for stating the first high-temperature flue gas pipeline 61 is connected to the combustion chamber of first heat storage tank, the other end and is connected to the steel scrap
Bucket 20, the one end of the second high-temperature flue gas pipeline 62 are connected to the combustion chamber of second heat storage tank, the other end connection institute
State steel scrap hopper 20, the one end of the first low-temperature flue gas pipeline 63 is connected to the air inlet of the air-introduced machine 60, the other end
Portion is connected to the surge chamber of first heat storage tank, one end and the air-introduced machine 60 of the second low-temperature flue gas pipeline 64
Air inlet connection, the other end are connected to the surge chamber of second heat storage tank, one end of the third low-temperature flue gas pipeline 65
Portion is connected to the air outlet of the air-introduced machine 60, the other end is connected to the surge chamber of first heat storage tank, and the described 4th is low
The one end of warm flue 66 is connected to the air outlet of the air-introduced machine 60, the buffering of the other end and second heat storage tank
Room connection；In the present solution, the air-introduced machine 60 is arranged on low-temperature flue gas pipeline, it can effectively extend the air-introduced machine 60
Service life avoids frequently overhauling to extend the service life of smoke circulating device 40, effectively saved use at
This, while also effectively reducing the energy consumption.
As an embodiment of this programme, as shown in Fig. 1 and Fig. 9, the tipburn device 50 includes being located at the steel scrap
The tipburn bracket 51 of 20 top of bucket is mounted on multiple top burners 52 on the tipburn bracket 51 for providing open fire and is used for
The tipburn bracket 51 is driven to do the tipburn carriage drive portion 53 of upper and lower direction elevating movement, wherein the top burner 52
In the surface of the steel scrap hopper 20, the top burner 52 is distributed along the length direction of the tipburn bracket 51；This programme
In, as shown in figure 9, the quantity of the tipburn device 50 is set as 3, it is separately positioned on heating station C, E and G station
On, the quantity of the tipburn device 50 is depending on actual use situation.
As an embodiment of this programme, as shown in Figure 10 and Figure 11, be additionally provided on the tipburn bracket 51 for
The top burner 52 provides the gas piping 511 of coal gas and for providing the first air hose of air to the top burner 52
Road 512, wherein the bottom of the top burner 52 forms one towards the flame port 521 of the steel scrap hopper 20, the spray
Fire end mouth 521 provides open fire from the top of the steel scrap hopper 20 to the steel scrap hopper 20, which can promote described useless
The after-flame of combustible component and improve flue-gas temperature in flue gas in steel hopper 20, formed on the side wall of the top burner 52 one with
The first air interface that the coal gas interface 522 and one that the gas piping 511 is connected to are connected to first air pipeline 512
523。
As an embodiment of this programme, as shown in Figure 10, the two sides of the flame port 521 of the top burner 52 are arranged
There is engine firewall 54, the engine firewall 54 is located at the bottom of the top burner 52, and the engine firewall 54 can be avoided the flame
The flame that port 521 sprays has an impact the tipburn bracket 51.
As an embodiment of this programme, the top burner 52 is blast furnace gas burner nozzle, has flame stabilization, spout speed
Spend fast advantage；Ever-burning flame burner (not shown), as shown in Figure 10 and Figure 11, the top are additionally provided in the top burner 52
The propane interface 524 and one for being passed through propane and air to the ever-burning flame burner is also formed on the shell of portion's burner 52
Second air interface 525 is additionally provided on the tipburn bracket 51 for providing the third of propane gas to the propane interface 524
Alkane pipeline 513 and for second air interface 525 provide air the second air pipeline 514, wherein the propane pipe
Road 513 is connected to the propane interface 524, and second air pipeline 514 is connected to second air interface 525；We
In case, the purpose that the ever-burning flame burner is arranged is: the propane flame of ever-burning flame burner is smaller and is burning always, gas burner
It is easy to extinguish, and propane flame is more stable reliable, exists after gas burner is flame-out there are also propane flame, therefore, gas fire
Flame can be ignited again.
As an embodiment of this programme, as shown in figure 15, tipburn carriage drive portion 53 includes being rotatably arranged on steel
Electrohydraulic push rod 531 on frame is fixedly connected positioned at 51 lower section of tipburn bracket and with the tipburn bracket 51 and is used to support institute
It states the connection framework 533 of tipburn bracket 51, the straight reciprocating motion of 531 piston rod of Electrohydraulic push rod is converted into the connection
Swing arm unit 532 of the frame 533 in the upward elevating movement of upper and lower, wherein the Electrohydraulic push rod 531 and the connection frame
Frame 533 is located at the opposite two sides of the swing arm unit 532, and the swing arm unit 532 includes being arranged on the steelframe
Synchronizing shaft, the first swing arm and the second swing arm for being fastened on the synchronizing shaft, the work of first swing arm and the Electrohydraulic push rod 531
Stopper rod pivot joint, second swing arm and the connection framework 533 are pivotally connected, when the piston rod movement of the Electrohydraulic push rod 531, institute
It states piston rod and drives the synchronizing shaft to rotate by first swing arm, the synchronizing shaft drives second swing arm upper and lower again
It swings, to drive the movement above and below of connection framework 533.
As an embodiment of this programme, as shown in figure 8, the bottom of the steel scrap hopper 20 and the smoke circulating device
Bellows 80 are additionally provided between 40, the bellows 80 enable to flue gas to uniformly enter in the steel scrap hopper 20.
Although the embodiments of the present invention have been disclosed as above, but it is not limited in listed fortune in specification and embodiments
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily real
Now other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is not limited to
Specific details and legend shown and described herein.
Claims (10)
1. a kind of scrap steel preheating furnace characterized by comprising
Supporting steel frame (10) is sequentially formed with feeding station, heating station and discharging station thereon；
Strung alongside is at the top of the supporting steel frame (10) for loading multiple steel scrap hoppers (20) of steel scrap；
It is arranged below the supporting steel frame (10) for providing the flue gas of high-temperature flue gas from bottom to the steel scrap hopper (20)
Circulator (40)；
Hopper driving device for driving the steel scrap hopper (20) mobile to the discharging station from the feeding station
(30)；And
For from top to the tipburn device (50) of steel scrap hopper (20) the open fire heat supply.
2. scrap steel preheating furnace as described in claim 1, which is characterized in that the top opening of the steel scrap hopper (20), bottom
Form several through-holes being passed through for hot fume.
3. scrap steel preheating furnace as described in claim 1, which is characterized in that the supporting steel frame (10) includes a main steel frame
(11), the side steelframe (12) in the opposite two sides of the main steel frame (11) is set, wherein the main steel frame (11) and the side steelframe
(12) spacing Q is preset between.
4. scrap steel preheating furnace as claimed in claim 3, which is characterized in that the hopper driving device (30) includes a pair of of hopper
Mobile unit, the hopper mobile unit include a horizontally disposed translation beam (31), one below the translation beam (31)
And it the lift beam (33) parallel with the translation beam (31), is rotatably arranged on the lift beam (33) and is used to support the translation
Multiple wheel groups (34) of beam (31) are fixed at multiple inclined rail seats that the wheel group (34) is used to support on civil engineering (70)
(35), piston rod and the lift beam (33) are pivotally connected to drive the wheel group (34) to be slided on the inclined rail seat (35) to real
The hydraulic cylinder (36) of the elevating movement of the existing translation beam (31), the Translation cylinder for driving the translation beam (31) to move horizontally
(32), wherein the ramp (351) for matching and being obliquely installed with the wheel group (34), institute are installed on the inclined rail seat (35)
The bottom for stating translation beam (31) is equipped with the track (311) matched with the wheel group (34), the translation beam (31) it is opposite
It is additionally provided with centering sliding rail (312) on both ends, is additionally provided on the civil engineering (70) and is matched with the centering sliding rail (312)
Centering wheel unit (37), when the translation beam (31) is lifted upwards, the top of the translation beam (31) passes through the spacing Q
It is offseted with the bottom of the steel scrap hopper (20) to realize the lifting of the steel scrap hopper (20).
5. scrap steel preheating furnace as described in claim 1, which is characterized in that the smoke circulating device (40) includes:
A pair is located at steel scrap hopper (20) the lower section two sides and is built-in with the heat storage tank (41) of regenerative chamber；
It is connected to the circulation line of heat storage tank (41) described in side, heat storage tank (41) and the steel scrap hopper (20) described in the other side
(42), the circulation line (42) is divided into high-temperature flue gas pipeline and low-temperature flue gas pipeline；And
Multiple reversal valves on the circulation line (42) are set；
Wherein, be additionally provided on the circulation line (42) for by by the regenerative chamber of side heat storage tank cooling after low temperature cigarette
Gas pressurization send the regenerative chamber to other side heat storage tank to be heated to being sent again after the condition of high temperature to the air-introduced machine of the steel scrap hopper (20)
(60), the air-introduced machine (60) is arranged on the low-temperature flue gas pipeline, is provided with heat supply burner on the heat storage tank (41)
(43).
6. scrap steel preheating furnace as described in claim 1, which is characterized in that the tipburn device (50) includes being located at the steel scrap
Tipburn bracket (51) above hopper (20), the multiple top burners (52) being mounted on the tipburn bracket (51) and for driving
The tipburn bracket (51) is set to do the tipburn carriage drive portion (53) of upper and lower direction elevating movement, wherein the top burner
(52) it is located at the surface of the steel scrap hopper (20), length direction of the top burner (52) along the tipburn bracket (51)
Distribution.
7. scrap steel preheating furnace as claimed in claim 6, which is characterized in that be additionally provided on the tipburn bracket (51) for
The top burner (52) provides the gas piping (511) of coal gas and for providing the first of air to the top burner (52)
Air pipeline (512), wherein the bottom of the top burner (52) forms a spitfire end towards the steel scrap hopper (20)
Mouthful (521) form a coal gas interface being connected to the gas piping (511) on the side wall of the top burner (52)
(522) and first air interface (523) that is connected to first air pipeline (512).
8. scrap steel preheating furnace as claimed in claim 7, which is characterized in that the flame port (521) of the top burner (52)
Two sides be provided with engine firewall (54), the engine firewall (54) is located at the bottom of the top burner (52).
9. scrap steel preheating furnace as claimed in claim 6, which is characterized in that the top burner (52) is blast furnace gas burner nozzle,
Ever-burning flame burner is additionally provided in the top burner (52).
10. scrap steel preheating furnace as described in claim 1, which is characterized in that the bottom of the steel scrap hopper (20) and the cigarette
Bellows (80) are additionally provided between gas circulator (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910826304.6A CN110423860B (en) | 2019-09-03 | 2019-09-03 | Scrap steel preheating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910826304.6A CN110423860B (en) | 2019-09-03 | 2019-09-03 | Scrap steel preheating furnace |
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| CN110423860A true CN110423860A (en) | 2019-11-08 |
| CN110423860B CN110423860B (en) | 2024-01-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560491A (en) * | 2020-06-15 | 2020-08-21 | 沈阳科维润工程技术有限公司 | Integrated tilting waste steel preheating device |
| CN115572791A (en) * | 2022-10-19 | 2023-01-06 | 安徽闽建环保设备有限公司 | Intelligent bucket type scrap steel heating system |
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| CN111560491A (en) * | 2020-06-15 | 2020-08-21 | 沈阳科维润工程技术有限公司 | Integrated tilting waste steel preheating device |
| CN115572791A (en) * | 2022-10-19 | 2023-01-06 | 安徽闽建环保设备有限公司 | Intelligent bucket type scrap steel heating system |
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| Publication number | Publication date |
|---|---|
| CN110423860B (en) | 2024-01-05 |
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