CN107543411B - A kind of superelevation enamel pipe tunnel oven - Google Patents
A kind of superelevation enamel pipe tunnel oven Download PDFInfo
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- CN107543411B CN107543411B CN201710306931.8A CN201710306931A CN107543411B CN 107543411 B CN107543411 B CN 107543411B CN 201710306931 A CN201710306931 A CN 201710306931A CN 107543411 B CN107543411 B CN 107543411B
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- tunnel oven
- superelevation
- enamel pipe
- insulating layer
- heating
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Abstract
The invention discloses a kind of superelevation enamel pipe tunnel ovens, it solves the problems, such as the superelevation tunnel oven temperature difference how is effectively reduced, and realize the accurate operation of superelevation enamel tunnel oven, improve the production efficiency of superelevation enamel pipe；Its technical solution are as follows: including steel construction；The top of the steel construction uses ceiling structure, and the downside of ceiling structure is equipped with top layer insulating layer, staggered floor curved seal structure is equipped in top layer insulating layer；The inside two sides inner wall of the steel construction is equipped with side insulating layer, is equipped with height-adjustable Segmented heating area along tunnel oven short transverse on the insulating layer of side；The bottom of the steel construction is equipped with material collecting tank, is equipped with heating device in the two sides of material collecting tank.
Description
Technical field
The present invention relates to a kind of superelevation enamel pipe tunnel ovens.
Background technique
With energy-saving and environment-friendly needs, all kiln gas require to carry out waste heat recycling, therefore air preheater is just
Towards enlargement development, the enamel pipe higher than 6 meters or more is generally required.The firing of enamel pipe is divided into continuous process and intermittent
Two kinds of technique.Continuous process is generally used tunnel oven to complete, and batch process uses shaft furnace or wall-mounted shuttle
Formula kiln is completed.Conventional enamel pipe tunnel oven is below 4 meters at present, and the enamel pipe higher than 4 meters generally uses shaft furnace to be burnt
Knot is sintered low efficiency, poor quality.
The sintering for the overlength enamel pipe that large-scale preheater uses is always technological difficulties.How superelevation tunnel oven is effectively reduced
The temperature difference be to solve the most critical issue of current superelevation enamel pipe preparation.It solves the temperature difference and is divided into two parts, first part is heat
The distribution of amount, it is contemplated that it expands with heat and contract with cold, needs not knowing closeer heating element in bottom, and it is relatively fewer on top；Followed by
" chimney " effect caused by the heat loss of top leads to upper and lower temperature difference.If excessive temperature differentials, the sintering of this tunnel oven bottom and top
Technique is inconsistent to cause product product poor.Finally be exactly enamel pipe during the sintering process, the glaze on enamel pipe has under part
The impurity such as the iron rust in drop phenomenon and enamel pipe fall off, and need this part goods and materials of periodic cleaning.
In conclusion in the prior art for the superelevation tunnel oven temperature difference how is effectively reduced the problem of, still lack effective
Solution.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of superelevation enamel pipe tunnel ovens, are used for air preheat
The continous way of the relevant devices such as the enamels such as device, enamel pipe, board with enamel panel layer is sintered, and passes through tunnel oven sealing and power controllable
Match, realize the accurate operation of superelevation enamel tunnel oven, improve the production efficiency of superelevation enamel pipe, solves that product qualification rate is low, property
The unstable problem of energy.
The present invention adopts the following technical solutions:
A kind of superelevation enamel pipe tunnel oven, the superelevation enamel pipe for being 4-10 meters for being sintered height, including steel construction；It is described
The top of steel construction use ceiling structure, the downside of ceiling structure is equipped with top layer insulating layer, and mistake is equipped in top layer insulating layer
Layer curved seal structure reduces top heat loss by staggered floor curved seal structure；The inside two sides inner wall of the steel construction is equipped with side
Face insulating layer is equipped with height-adjustable Segmented heating area along tunnel oven short transverse on the insulating layer of side；The steel
The bottom of structure is equipped with material collecting tank, is equipped with heating device in the two sides of material collecting tank, reduces bottom because heat expansion is cold by heating device
Upper and lower temperature difference caused by contracting.
Further, the ceiling structure is equipped with the suspended structure for hanging enamel pipe, the staggered floor song envelope
Structure is set in suspended structure, drives staggered floor curved seal structure to increase the resistance that hot gas leaks in tunnel oven by mobile suspended structure
Power.
Further, the suspended structure is equipped with pulley, keeps the enamel pipe being transmitted in tunnel oven real by pulley
Now uninterrupted or interval movement.
Further, arrange that several heating zones, each heating zone include several heating units in tunnel oven short transverse.
Further, the heating unit is adding thermal resistance band or resistance wire, and adding thermal resistance band or resistance wire are in tunnel
In kiln short transverse at interval of 500mm be a heating unit；Entire tunnel oven can arrange 3-6 heating in the height direction
Area.
Further, in the insulating layer of top reserve height be 10-15mm, the perforation layer that width is 120-200mm, it is described
Staggered floor curved seal structure be set to perforation layer in.
Further, the material collecting tank is V-type, for handling the glaze to drip in enamel pipe production process, iron rust etc.
Waste material, and aperture is reserved in tunnel oven two sides of the bottom, it is periodically removed by side wall preformed hole.
Further, the heating device is adding thermal resistance band or resistance wire, the adding thermal resistance band or resistance wire of bottom
Bottom is further reduced because of upper and lower temperature difference caused by expanding with heat and contract with cold.
Further, the top of the top insulating layer is equipped with wiring pile, the electricity of all adding thermal resistance bands or resistance wire
It is convenient to connect electricity by top wiring staking electricity for line.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention by inside tunnel oven two sides adding thermal resistance band or resistance wire are arranged to the heating of segmented
Area, the hot gas effectively reduced in tunnel oven are leaked by top；Adding thermal resistance band or resistance wire are installed in tunnel oven bottom, used
In the heat preservation concurrent heating of bottom temp, further decreases because of the too low phenomenon in bottom caused by expanding with heat and contract with cold, improve entire burner hearth
Temperature uniformity；It is eliminated because furnace roof and furnace bottom are because of the temperature difference to be formed of leaking out, effectively by the heating device of top and bottom
Burner hearth upper and lower temperature difference ± 7.5 DEG C, the left and right temperature difference ± 7 DEG C are controlled, energy-saving effect is significant；
(2) of the invention to pass through setting staggered floor curved seal structure, it can run well at tunnel oven turning and effectively song seals, can have
Effect reduces thermal convection up and down, reduces kiln top heat loss, the temperature difference in degradation kiln；
(3) V-type material collecting tank is arranged in tunnel oven bottom in the present invention, for collecting the objects such as lower tear drop, iron rust on enamel pipe
Matter, and routine observation removing is carried out by reserved aperture.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the main view of superelevation enamel tunnel oven sectional view of the invention；
Fig. 2 is the side view of superelevation enamel tunnel oven sectional view of the invention；
Fig. 3 is the main view of staggered floor curved seal structure of the invention；
Fig. 4 is the side view of staggered floor curved seal structure of the invention；
Fig. 5 is the main view of superelevation enamel tunnel oven bottom material collecting tank of the invention；
Fig. 6 is the side view of superelevation enamel tunnel oven bottom material collecting tank of the invention；
Wherein, 1- ceiling structure, 2- staggered floor curved seal structure, the side 3- insulating layer, 4- heating unit, 5- material collecting tank, 6- add
Thermal, 7- steel construction, 8- suspended structure, 9- wiring pile.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, exist in the prior art for the enamel pipe higher than 4 meters using shaft furnace progress
Low efficiency, poor quality and the biggish deficiency of the superelevation tunnel oven temperature difference of sintering, in order to solve technical problem as above, the application is mentioned
A kind of superelevation enamel pipe tunnel oven is gone out.
In a kind of typical embodiment of the application, as Figure 1-Figure 2, a kind of superelevation enamel pipe tunnel is provided
Kiln primarily can be used for height as the sintering of 6 meters or more of air preheater enamel pipe；Including steel construction 7；The steel knot
Support construction of the structure 7 as entire tunnel oven；The top of the steel construction 7 uses ceiling structure 1, the downside of ceiling structure 1
Equipped with top layer insulating layer, staggered floor curved seal structure 2 is equipped in top layer insulating layer, the application exists by the way that staggered floor curved seal structure 2 is arranged
Tunnel oven turning can run well and effectively bent envelope, and thermal convection up and down can be effectively reduced, reduce kiln top heat loss, degrade
The kiln temperature difference.
The inside two sides inner wall of the steel construction 7 be equipped with side insulating layer 3, the side of the side insulating layer 3 with
The inner wall of tunnel oven contacts, and height-adjustable segmentation is equipped in tunnel oven short transverse in the other side of side insulating layer 3
Formula heating zone；The bottom of the steel construction 7 is equipped with material collecting tank 5, is equipped with heating device 6 in the two sides of material collecting tank 5, passes through heating
Device 6 reduces bottom because of upper and lower temperature difference caused by expanding with heat and contract with cold.
Above-mentioned side insulating layer 3 and top layer insulating layer is protected using low thermally conductive polycrystalline mullite fibre and alumina silicate fibre etc.
Warm refractory material.
As shown in Figure 3 and Figure 4, in the insulating layer of top reserve height be 10-15mm, the perforation that width is 120-200mm
Layer, the staggered floor curved seal structure 2 are set in perforation layer, form staggered floor by the way that different height is arranged in adjacent curved seal structure
Curved seal structure 2；Staggered floor curved seal structure 2 can increase the resistance that hot gas leaks in furnace, caused by inhibition answers furnace roof to radiate " chimney "
Effect plays the role of the burner hearth upper and lower temperature difference for reducing tunnel oven very big.
Above-mentioned ceiling structure 1 is equipped with multiple suspended structures 8 for being used to hang enamel pipe, and the suspended structure 8 is
Enamel pipe hook structure；The staggered floor curved seal structure 2 is set in suspended structure 8, drives staggered floor by mobile suspended structure 8
Curved seal structure 2 increases the resistance that hot gas leaks in tunnel oven.
Above-mentioned suspended structure 8 is equipped with pulley, realizes the enamel pipe being transmitted in tunnel oven by pulley uninterrupted
Or the movement of interval.When the enamel pipe of suspension is arrived by transmission mechanism into tunnel oven, due to being provided on the suspension structure
Staggered floor curved seal structure 2, therefore the hot gas that kiln can be effectively reduced is leaked by top.
Several heating zones are arranged in tunnel oven short transverse, adjust the heated height of each heating zone according to the actual situation,
Reduce upper and lower temperature difference in tunnel oven；Each heating zone includes several heating units 4.The width of heating of heating unit 4 is according to demand
The sintering temperature of enamel pipe is determining, generally 400mm~600mm.
Above-mentioned heating unit 4 is adding thermal resistance band, and adding thermal resistance band is at interval of 500mm in tunnel oven short transverse
One heating unit；Entire tunnel oven can arrange 3-6 heating zone in the height direction.The adding thermal resistance band is nickel aluminium
Chromium alloy resistive band, tunnel oven is interior to be heated using Calite resistance band.
The top of above-mentioned top insulating layer is equipped with wiring pile 9, all heating units 4, heating device 6 electric wire by connecing
Line stake 9 connects electricity；It can be adjusted according to binding post 9 of the temperature requirements to furnace roof, realize the heating unit 4 of each heating zone
Quantity is adjustable, to realize the controllable adjustment of kiln in the height direction.
As shown in Figure 5 and Figure 6, above-mentioned material collecting tank 5 be V-type, for handle the glaze to drip in enamel pipe production process,
The waste materials such as iron rust, and aperture is reserved in tunnel oven two sides of the bottom, it is periodically removed by side wall preformed hole.
Above-mentioned heating device 6 is resistance wire, is set to the two sides of material collecting tank 5V type position；The resistance wire of tunnel oven bottom
Bottom is further reduced because of upper and lower temperature difference caused by expanding with heat and contract with cold, improves the temperature uniformity of entire burner hearth.
The present invention utilizes tunnel oven new construction, and staggered floor curved seal structure 2, side segmented including being set to top are adjustable
Adding thermal resistance band, bottom resistance silk and V-type material collecting tank；Top thermal loss, benefit are reduced using the staggered floor curved seal structure 2 at top
It is laid out with two sides Segmented heating area, and can according to circumstances adjust the heated height of each heating zone, reduction upper and lower temperature difference, and bottom
The resistance wire in portion further reduces bottom because of upper and lower temperature difference caused by expanding with heat and contract with cold.Heating structure (two sides heating zone in tunnel oven
And bottom heating device) eliminate because furnace internal cause is leaked out the temperature difference to be formed；Effectively control burner hearth upper and lower temperature difference ± 7.5 DEG C, left and right
The temperature difference ± 7 DEG C, energy-saving effect are significant.
In the another embodiment of the application, the heating unit 4 is resistance wire, and the heating device 6 is to add
Thermal resistance band.
In another embodiment of the application, the heating unit 4 and heating device 6 are adding thermal resistance band or
For resistance wire.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of superelevation enamel pipe tunnel oven, which is characterized in that the superelevation enamel pipe for being 4-10 meters for being sintered height, including steel
Structure；The top of the steel construction uses ceiling structure, and the downside of ceiling structure is equipped with top layer insulating layer, in top layer insulating layer
In be equipped with staggered floor curved seal structure, pass through staggered floor curved seal structure reduce top heat loss；The inside two sides inner wall of the steel construction
It is equipped with side insulating layer, is equipped with height-adjustable Segmented heating area along tunnel oven short transverse on the insulating layer of side；
The bottom of the steel construction is equipped with material collecting tank, is equipped with heating device in the two sides of material collecting tank, reduces bottom by heating device
Because expanding with heat and contract with cold caused by upper and lower temperature difference.
2. a kind of superelevation enamel pipe tunnel oven according to claim 1, which is characterized in that the ceiling structure is equipped with
For hanging the suspended structure of enamel pipe, the staggered floor curved seal structure is set in suspended structure, passes through mobile suspended structure
Staggered floor curved seal structure is driven to increase the resistance that hot gas leaks in tunnel oven.
3. a kind of superelevation enamel pipe tunnel oven according to claim 2, which is characterized in that the suspended structure is equipped with
Pulley makes enamel pipe carry out intermittent movement by pulley.
4. a kind of superelevation enamel pipe tunnel oven according to claim 1, which is characterized in that the cloth in tunnel oven short transverse
Several heating zones are set, each heating zone includes several heating units.
5. a kind of superelevation enamel pipe tunnel oven according to claim 4, which is characterized in that the heating unit is heating
Resistance band or resistance wire.
6. a kind of superelevation enamel pipe tunnel oven according to claim 1, which is characterized in that reserve height in the insulating layer of top
Degree be 10-15mm, the perforation layer that width is 120-200mm, the staggered floor curved seal structure be set to penetrates through layer in.
7. a kind of superelevation enamel pipe tunnel oven according to claim 1, which is characterized in that the material collecting tank is V-type.
8. a kind of superelevation enamel pipe tunnel oven according to claim 1, which is characterized in that the heating device is heating
Resistance band or resistance wire.
9. a kind of superelevation enamel pipe tunnel oven according to claim 1, which is characterized in that the top insulating layer it is upper
Portion is equipped with wiring pile.
10. a kind of superelevation enamel pipe tunnel oven according to claim 1, which is characterized in that pre- in tunnel oven two sides of the bottom
Aperture is stayed, periodic cleaning tunnel oven bottom waste material is convenient for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306931.8A CN107543411B (en) | 2017-05-04 | 2017-05-04 | A kind of superelevation enamel pipe tunnel oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306931.8A CN107543411B (en) | 2017-05-04 | 2017-05-04 | A kind of superelevation enamel pipe tunnel oven |
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| Publication Number | Publication Date |
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| CN107543411A CN107543411A (en) | 2018-01-05 |
| CN107543411B true CN107543411B (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902129A (en) * | 1959-10-10 | 1962-07-25 | Siemens Ag | Apparatus for use in applying laminar electrodes to semi-conductor members |
| JPH05240584A (en) * | 1992-02-28 | 1993-09-17 | Kawasaki Steel Corp | Vertical induction furnace |
| CN1185488A (en) * | 1996-12-17 | 1998-06-24 | 神钢汎技术股份有限公司 | Sintering furnace for enamel product |
| CN201335601Y (en) * | 2008-12-25 | 2009-10-28 | 欧阳可成 | Ultra-temperature roller kiln for sintering refractory raw material |
| CN202973857U (en) * | 2012-11-20 | 2013-06-05 | 江苏华东炉业有限公司 | Bogie-hearth resistance furnace |
| CN205593381U (en) * | 2016-03-14 | 2016-09-21 | 江苏和腾热工装备科技有限公司 | Full fibre kiln crown structure and heating element mounting structure of energy -saving pushed bat kiln |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7731892B2 (en) * | 2004-01-30 | 2010-06-08 | Rodolfo Napoli | Pit furnace closing system |
-
2017
- 2017-05-04 CN CN201710306931.8A patent/CN107543411B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902129A (en) * | 1959-10-10 | 1962-07-25 | Siemens Ag | Apparatus for use in applying laminar electrodes to semi-conductor members |
| JPH05240584A (en) * | 1992-02-28 | 1993-09-17 | Kawasaki Steel Corp | Vertical induction furnace |
| CN1185488A (en) * | 1996-12-17 | 1998-06-24 | 神钢汎技术股份有限公司 | Sintering furnace for enamel product |
| CN201335601Y (en) * | 2008-12-25 | 2009-10-28 | 欧阳可成 | Ultra-temperature roller kiln for sintering refractory raw material |
| CN202973857U (en) * | 2012-11-20 | 2013-06-05 | 江苏华东炉业有限公司 | Bogie-hearth resistance furnace |
| CN205593381U (en) * | 2016-03-14 | 2016-09-21 | 江苏和腾热工装备科技有限公司 | Full fibre kiln crown structure and heating element mounting structure of energy -saving pushed bat kiln |
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| CN107543411A (en) | 2018-01-05 |
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