CN107345764A - The trolley type heating furnace in controllable gas flow field - Google Patents
The trolley type heating furnace in controllable gas flow field Download PDFInfo
- Publication number
- CN107345764A CN107345764A CN201610290572.7A CN201610290572A CN107345764A CN 107345764 A CN107345764 A CN 107345764A CN 201610290572 A CN201610290572 A CN 201610290572A CN 107345764 A CN107345764 A CN 107345764A
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- China
- Prior art keywords
- burner
- exhaust opening
- gas flow
- type heating
- heating furnace
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- 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.)
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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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
Abstract
The present invention provides a kind of trolley type heating furnace in controllable gas flow field, array is arranged at intervals with some burners and exhaust opening on both sides furnace wall in burner hearth, burner combustion produces high-temperature flue gas and forms higher-pressure region in burner forefoot area, exhaust opening produces draft and forms negative pressuren zone in exhaust opening forefoot area, pass through the keying and the smoke evacuation of control exhaust opening or closing of the keying control burner of control valve, exhaust opening smoke evacuation in right side during the burner combustion of left side, the smoke evacuation of left side exhaust opening, timing exchange the relative position of burner hearth inner high voltage area and negative pressuren zone during the burner combustion of right side.The present invention is simple in construction, easy to use, is easily achieved, and by controlling different zones furnace pressure, realizes fluid flow direction in control stove.Timing changes furnace gas flow direction, reduces the temperature difference in stove, temperature field is tended to be uniform, high-temperature heater temperature uniformity is reached within ± 10 DEG C.Flame localized hyperthermia is avoided to effective heating area temperature profile effect, so as to avoid the risk that workpiece is burnt.
Description
Technical field
The present invention relates to field of metallurgy；
A kind of more particularly to trolley type heating furnace in controllable gas flow field.
Background technology
Trolley type heating furnace is to products such as production mould steel, bearing steel, high-alloy steel.Trolley type heating furnace belongs to interval
Formula alternating temperature stove, subregion, furnace temperature are not changed over time burner hearth by defined heating schedule.Trolley type heating furnace has a batch-type furnace
Thorax, furnace bottom are a moveable chassis, and workpiece is arranged on the equally distributed sizing block special of trolley surface, by drawing during heating
Mechanism pulls in chassis in stove；After heating, chassis is pulled out into discharging outside stove by haulage gear.
In the prior art, part trolley type heating furnace uses high-speed burner impulse combustion technology, and burner is arranged in body of heater two
Side wall bottom, is spaced at equal intervals parallels on chassis face, and the space between parallels is as the burner high-temperature high-speed airflow flowing space；
Also there is part trolley type heating furnace that burner is arranged in into furnace roof both sides.
Trolley type heating furnace generally uses above-mentioned combustion heat supplying mode at present, when burner determines in the installation site of body of heater
Afterwards, the Flow Field Distribution position in stove also determines that it has the following disadvantages therewith：First, exist in burner combustion space local high
Temperature, flame easily make workpiece burning close to workpiece；Second, the temperature of burner front space is higher than the temperature away from this position, make
The workpiece surface temperature difference is big, even more than 60 DEG C.In actual production, encounter and high workpiece is required to steel temperature homogeneity, will
The difficulty of equipment operation regulation can be considerably increased.
The content of the invention
A variety of deficiencies of prior art in view of the above, the technical problem to be solved in the present invention are to provide a kind of controllable
The trolley type heating furnace of gas flowfield, it is distributed by changing fluid field in furnace, it is existing to overcome to improve furnace temperature of heating furnace uniformity
The drawbacks described above of technology.
In order to achieve the above objects and other related objects, the present invention provides a kind of car-type heating in controllable gas flow field
Stove, array is arranged at intervals with some burners and exhaust opening on the both sides furnace wall in burner hearth, and burner combustion produces high-temperature flue gas and burnt
Mouth forefoot area forms higher-pressure region, and exhaust opening produces draft and forms negative pressuren zone in exhaust opening forefoot area, passes through the keying of control valve
Control the keying of burner and the smoke evacuation of control exhaust opening or close, the smoke evacuation of right side exhaust opening, right side burner during the burner combustion of left side
The smoke evacuation of left side exhaust opening, timing exchange the relative position of burner hearth inner high voltage area and negative pressuren zone during burning.
Preferably, the burner be high combustion rate burner, flat flame burner, heat-accumulating burner it is any.
Preferably, the burner uses parallel shafting, and the flame after burning presses close to furnace wall, and workpiece keeps certain safety
Distance.
Preferably, when burner hearth is width 1.5m~2.5m narrow burner hearth, the burner uses heat storage type combustion.
Preferably, the burner collectively forms combustion system with gas piping, air duct, blower fan, valve.
Preferably, the exhaust opening and flue, air-introduced machine, valve, the common smoke evacuation system of chimney.
By above technical scheme, the present invention has following technique effect compared to prior art：The present invention it is simple in construction,
It is easy to use, be easily achieved, by controlling different zones furnace pressure, realize fluid flow direction in control stove.Timing changes furnace gas
Flow direction, reduce the temperature difference in stove, temperature field is tended to be uniform, high-temperature heater temperature uniformity is reached within ± 10 DEG C.Avoid
Flame localized hyperthermia is to effective heating area temperature profile effect, so as to avoid the risk that workpiece is burnt.
Brief description of the drawings
Fig. 1 and Fig. 2 is shown as the working state schematic representation of the trolley type heating furnace in controllable gas flow field of the present invention.
Component label instructions：
1 higher-pressure region
2 negative pressuren zones
3 effective heating areas
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Fig. 1 is referred to Fig. 2.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to
Coordinate the content disclosed in specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influenceing the effect of present invention can be generated and the purpose that can reach, all should still fall in disclosed skill
Art content is obtained in the range of covering.Meanwhile in this specification it is cited as " on ", " under ", "left", "right", " centre " and
The term of " one " etc., understanding for narration is merely convenient to, and is not used to limit the enforceable scope of the present invention, its relativeness
It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the present invention.
The present invention provides a kind of trolley type heating furnace in controllable gas flow field, in burner hearth on the furnace wall of symmetrical both sides between array
Every being provided with some burners and exhaust opening, burner collectively forms combustion system with gas piping, air duct, blower fan, valve；Row
Mouth and flue, air-introduced machine, valve, the common smoke evacuation system of chimney.
The burner hearth of trolley type heating furnace is enclosed construction, and fuel is burnt by combustion system produces high-temperature flue gas, into stove
Furnace pressure is raised after thorax, higher-pressure region 1 is formed in burner forefoot area；Draft is produced by smoke evacuation system in exhaust opening discharging fume
Prebuccal area domain forms negative pressuren zone 2, controls the keying of burner by the keying of control valve and controls exhaust opening smoke evacuation or close,
Exhaust opening smoke evacuation in right side during the burner combustion of left side, during the burner combustion of right side the smoke evacuation of left side exhaust opening, timing exchange burner hearth inner high voltage
Area and the relative position of negative pressuren zone, and then control inner flue gas of the stove flow direction.By the keying FREQUENCY CONTROL higher-pressure region of control valve and
Negative pressuren zone exchanges the frequency of position.Which achieves controllable flow field.Have particular application as, as shown in fig.1, in first half cycle,
Higher-pressure region 1 is formed on the inside of the furnace wall of left side, negative pressuren zone 2 is formed on the inside of the furnace wall of right side, high-temperature furnace gas flows to negative pressuren zone from higher-pressure region 1
2, when by effective heating area 3, by workpiece heat, furnace gas temperature reduces after heat exchange, and into after negative pressuren zone, it is logical to enter back into smoke evacuation
Road, complete a heating process to workpiece；As shown in fig.2, the later half cycle have adjusted the relative of higher-pressure region 1 and negative pressuren zone 2
Position, make furnace gas reverse flow, have modified the left and right sides temperature difference of the workpiece of effective heating area 3, workpiece temperature is reached unanimity.
Burner hearth effective heating area both sides higher-pressure region 1 and negative pressuren zone 2 are Fuzzy divides, without obvious boundary, along appointing for gas flow direction
Meaning vertical cross section, gas inflow side is high pressure, outflow side is negative pressure.In the present embodiment, by generation high-temperature gas side
As high pressure, 1, will discharge high-temperature gas side as low-pressure area 2.
As a further improvement on the present invention, according to different features of oven profile, can be matched in the type selecting of burner high combustion rate burner,
Flat flame burner, heat-accumulating burner.When burner uses parallel shafting, flame is arranged in effective heating area both sides, using gas
Wall attachment effect, the flame after burning press close to furnace wall, and workpiece keeps certain safe distance, fundamentally solves because of flame office
Burning problem caused by portion's high temperature.When burner hearth is width 1.5m~2.5m narrow burner hearth, burner uses heat storage type combustion.Accumulation of heat
Formula combustion technology (or self-preheating combustion technology) and flat flame combustion technology are combined, and realize effectively tissue fluid field in furnace,
Success is achieved in terms of improving temperature uniformity.
In summary, the present invention is simple in construction, easy to use, is easily achieved, and by controlling different zones furnace pressure, realizes control
Fluid flows in stove processed.Timing changes furnace gas flow direction, reduces the temperature difference in stove, temperature field is tended to be uniform, make high-temperature heating
Stove temperature uniformity reaches within ± 10 DEG C.Flame localized hyperthermia is avoided to effective heating area temperature profile effect, so as to keep away
The risk that workpiece is burnt is exempted from.So the present invention effectively overcomes various shortcoming of the prior art and has high industrial profit
With value.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. a kind of trolley type heating furnace in controllable gas flow field, it is characterised in that array spacings are set on the both sides furnace wall in burner hearth
Some burners and exhaust opening are equipped with, burner combustion produces high-temperature flue gas and forms higher-pressure region in burner forefoot area, and exhaust opening is produced and taken out
Power forms negative pressuren zone in exhaust opening forefoot area, controls the keying of burner and control exhaust opening to discharge fume by the keying of control valve
Or close, exhaust opening smoke evacuation in right side during the burner combustion of left side, left side exhaust opening smoke evacuation during the burner combustion of right side, timing exchanges burner hearth
Inner high voltage area and the relative position of negative pressuren zone.
2. the trolley type heating furnace in controllable gas flow field according to claim 1, it is characterised in that the burner is at a high speed
Burner, flat flame burner, heat-accumulating burner it is any.
3. the trolley type heating furnace in controllable gas flow field according to claim 1, it is characterised in that the burner is using flat
Flame burns, and the flame after burning presses close to furnace wall, and workpiece keeps certain safe distance.
4. the trolley type heating furnace in controllable gas flow field according to claim 1, it is characterised in that burner hearth is width 1.5m
During~2.5m narrow burner hearth, the burner uses heat storage type combustion.
5. the trolley type heating furnace in controllable gas flow field according to claim 1, it is characterised in that the burner and coal gas
Pipeline, air duct, blower fan, valve collectively form combustion system.
6. the trolley type heating furnace in controllable gas flow field according to claim 1, it is characterised in that the exhaust opening and cigarette
The common smoke evacuation system of road, air-introduced machine, valve, chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290572.7A CN107345764A (en) | 2016-05-04 | 2016-05-04 | The trolley type heating furnace in controllable gas flow field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290572.7A CN107345764A (en) | 2016-05-04 | 2016-05-04 | The trolley type heating furnace in controllable gas flow field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107345764A true CN107345764A (en) | 2017-11-14 |
Family
ID=60253685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610290572.7A Pending CN107345764A (en) | 2016-05-04 | 2016-05-04 | The trolley type heating furnace in controllable gas flow field |
Country Status (1)
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| CN (1) | CN107345764A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004282A (en) * | 2019-05-24 | 2019-07-12 | 武汉迈特炉业科技有限公司 | A kind of car type furnace for large piece heat treatment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202339101U (en) * | 2011-09-26 | 2012-07-18 | 天津金轮自行车集团有限公司 | Heat accumulating type aluminum melting furnace |
| CN102607267A (en) * | 2012-03-20 | 2012-07-25 | 朱海生 | Regenerative high-temperature air combustion energy-saving environment-friendly shuttle-type kiln |
| CN203349648U (en) * | 2013-03-27 | 2013-12-18 | 成都阳光铝制品有限公司 | Heat-storage-type energy-saving smelting furnace |
| CN203758241U (en) * | 2013-12-30 | 2014-08-06 | 苏州市层燃炉窑科技有限公司 | Heating furnace |
| CN104006654A (en) * | 2014-05-21 | 2014-08-27 | 江苏华德工业炉有限公司 | Different-section different-side air and coal gas dual-regeneration burner heating furnace |
-
2016
- 2016-05-04 CN CN201610290572.7A patent/CN107345764A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202339101U (en) * | 2011-09-26 | 2012-07-18 | 天津金轮自行车集团有限公司 | Heat accumulating type aluminum melting furnace |
| CN102607267A (en) * | 2012-03-20 | 2012-07-25 | 朱海生 | Regenerative high-temperature air combustion energy-saving environment-friendly shuttle-type kiln |
| CN203349648U (en) * | 2013-03-27 | 2013-12-18 | 成都阳光铝制品有限公司 | Heat-storage-type energy-saving smelting furnace |
| CN203758241U (en) * | 2013-12-30 | 2014-08-06 | 苏州市层燃炉窑科技有限公司 | Heating furnace |
| CN104006654A (en) * | 2014-05-21 | 2014-08-27 | 江苏华德工业炉有限公司 | Different-section different-side air and coal gas dual-regeneration burner heating furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004282A (en) * | 2019-05-24 | 2019-07-12 | 武汉迈特炉业科技有限公司 | A kind of car type furnace for large piece heat treatment |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171114 |
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| RJ01 | Rejection of invention patent application after publication |