CN203572224U - Convection radiation wall for heat accumulating type industrial furnace and heat accumulating type industrial furnace - Google Patents
Convection radiation wall for heat accumulating type industrial furnace and heat accumulating type industrial furnace Download PDFInfo
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- CN203572224U CN203572224U CN201320751938.8U CN201320751938U CN203572224U CN 203572224 U CN203572224 U CN 203572224U CN 201320751938 U CN201320751938 U CN 201320751938U CN 203572224 U CN203572224 U CN 203572224U
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- convection current
- industrial furnace
- fire door
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Abstract
The utility mode relates to a convection radiation wall for a heat accumulating type industrial furnace and the heat accumulating type industrial furnace. The convection radiation wall is made of high-temperature-resistance materials, is positioned between two side furnace openings, and comprises peaks, valleys, mountain feet and bases, wherein the peaks are projected in a the mountain shape, the valleys are positioned between the peaks, the mountain feet are positioned below the valleys, the bases are positioned below the mountain feet, the peaks have heights and widths for blocking the direct through air flow between the two side furnace openings, except the bases, more than two hemispheroids are regularly distributed on the wall surfaces, facing the two side furnace openings, at the two sides of the convection radiation wall, the diameter and the height of each hemispheroid is 15 to 50mm, the gap between the vertexes of the hemispheroids is 1 to 2 times of the sphere diameter, and the occupied percentage of the hemispheroids on the unit wall surface is 35 to 80 percent. The convection radiation wall adopts materials and wall body structures for improving the convection radiation heat transfer effect, and the convection and radiation heat transfer of high-temperature furnace gas in the furnace can be improved, so the smoke gas flowing and the medium mixing in the furnace are improved, the heating workpiece uniformity is improved, the heating energy consumption is reduced, and the heat efficiency of a hearth is improved.
Description
Technical field
The utility model relates to heat-accumulating industrial furnace and equipment, and more particularly, the utility model relates in particular to flow-disturbing and the heat-transfer equipment in a kind of heat-accumulating industrial furnace and stove thereof.
Background technology
At present, heat-accumulating industrial furnace be utilize the external regenerator in both sides come warm-up combustion-supporting air or simultaneously preheating gas fuel to realize the Novel industrial kiln of high-temperature air combustion promoter.Heat-accumulating industrial furnace kiln generally adopts the smoke evacuation of clearance-type furnace side, pulsed burning, therefore, easily produces furnace pressure fluctuation; Meanwhile, due to the degree varies of breaking, harden of heat storage in the different regenerator that are in operation, thereby impact smoke evacuation resistance and blast change, so that the resistance of the different gas channels in both sides is also inhomogeneous; Therefore, high-temperature furnace gas in heat-accumulating industrial furnace has not been mainly the skewness of traditional heating stove along furnace superintendent direction, but also along the pressure of stove cross direction, be also uneven distribution simultaneously, from fire door furnace pressure fluctuation from the near to the remote, increase, these all further cause furnace flame and high-temperature furnace gas skewness.
At present, due to above reason, all there are the following problems for most of recuperative heaters: fuel and combustion air mix bad, combustion medium and high-temperature furnace gas are directly taken away by opposite smoke evacuation fire door, on flame is multi-direction in stove, there is no abundant release heat, through thermal testing, in flue gas, there are higher combustible component and oxygen to exist simultaneously.Show aborning: the one, energy consumption is high, and the 2nd, in stove, workpiece heating is inhomogeneous.
Summary of the invention
For the above-mentioned shortcoming of prior art, the purpose of this utility model is that a kind of heat-accumulating industrial furnace convection current radiant wall and device will be provided, its tool has the following advantages: adopt the wall body structure and the material that improve convection current radiant heat transfer effect, can increase convection current and the radiant heat transfer of furnace high-temperature furnace gas, thereby improving medium in stove mixes and flow of flue gas, improve heated parts uniformity, reduce heating energy consumption, improve the burner hearth thermal efficiency.
For this reason, one of technical solution of the present utility model is a kind of heat-accumulating industrial furnace convection current radiant wall, it is located at both sides and respectively has more than 2 fire door and both sides fire door one by one in corresponding heat-accumulating industrial furnace, and described convection current radiant wall consists of high temperature resistant material, it is between the fire door of both sides, and it comprises the mountain peak of chevron projection, between peak-to-peak mountain valley, mountain, the foot of the hill below mountain valley, the base portion below the foot of the hill; Described mountain peak has the height and the width that intercept straight-through air-flow between the fire door of both sides, except base portion, convection current radiant wall both sides in the face of on the metope of both sides fire door all rule be distributed with 2 above hemispheres, hemispheroidal diameter and be highly 15-50mm, spacing between hemisphere summit is 1-2 times of sphere diameter, and the shared ratio of hemisphere on unit metope is 35-80%.
By the experiment of a large amount of novelties, high temperature resistant material convection current radiant wall of the present utility model takes can intercept in the face of the metope of both sides fire door the novelty flow-disturbing hemisphere of the height/wide structure of straight-through air-flow between the fire door of both sides, in addition characteristic diameter and height, thereby very simply architecture advances, improve the heat-transfer effect of convection current radiation, can increase convection current and the radiant heat transfer of high-temperature furnace gas in stove, thereby effectively improve inner flue gas of the stove mobility and medium mixing uniformity, improve the heating uniformity of workpiece, reduce heating energy consumption, improve the burner hearth thermal efficiency.
For flow-disturbing, heat transfer, the radiation effect of the further convection current radiant wall structure improving, the utility model convection current radiant wall comprises following structure aspects improvement:
Described convection current radiant wall is located at the wide middle part of stove between heat-accumulating industrial furnace 2 sides; The edge, highest and lowest of the aspect ratio both sides fire door on described mountain peak all exceeds 80-120mm, the width on described mountain peak than the most left and rightmost edges of both sides fire door all wide go out 80-120mm.
The 1.5-3.0 that whole body of wall height is described base portion height doubly.
For flow-disturbing, heat transfer, the radiation effect of the further convection current radiant wall structure improving, the utility model convection current radiant wall comprises the improvement of following material and structure aspects:
Described hemispheroidal material is mullite, Al in its component
2o
3weight rate is not less than 56%.
Take the central wall body thickness of the convection current radiant wall of the spacing between the hemisphere bottom on the metope of both sides as 100-900mm.
The material of described center body of wall comprises high-alumina brick, Al in high-alumina brick component
2o
3weight rate is not less than 48%.
Sintering is gone back on described hemisphere surface high radiant rate black matrix coating, and it comprises the component of following weight rate meter: SiC:45%～65%, ZrO
2: 10%～15%, Si0
2: 10%～25%, silicic acid anhydride 3%～5%, sodium metasilicate 10%～20%.
The thickness of described black matrix coating is 1.5-3.5mm.
Above-mentioned mullite material, high-alumina brick material meet GB/T2988-2012, ASTM-AM28 regulation.
Correspondingly, another technical solution of the present utility model is a kind of heat-accumulating industrial furnace that adopts heat-accumulating industrial furnace described above convection current radiant wall, heat-accumulating industrial furnace comprises body of heater front end, body of heater rear end, furnace roof, furnace bottom, respectively has the both sides of more than 2 fire door, the fire door of both sides is corresponding one by one, and described convection current radiant wall consists of high temperature resistant material, it is between the fire door of both sides, and it comprises the mountain peak of chevron projection, between peak-to-peak mountain valley, mountain, the foot of the hill below mountain valley, the base portion below the foot of the hill; Described mountain peak has the height and the width that intercept straight-through air-flow between the fire door of both sides, except base portion, convection current radiant wall both sides in the face of on the metope of both sides fire door all rule be distributed with 2 above hemispheres, hemispheroidal diameter and be highly 15-50mm, spacing between hemisphere summit is 1-2 times of sphere diameter, and the shared ratio of hemisphere on unit metope is 35-80%.
By the experiment of a large amount of novelties, heat-accumulating industrial furnace of the present utility model adopts above-mentioned high temperature resistant material convection current radiant wall, this convection current radiant wall takes can intercept in the face of the metope of both sides fire door the height/wide structure of straight-through air-flow between the fire door of both sides, in addition diameter and highly special hemisphere turbulence construction, thereby very simply architecture advances, improve the heat-transfer effect of convection current radiation, increase convection current and the radiant heat transfer of heat-accumulating industrial furnace furnace high-temperature furnace gas of the present utility model, thereby effectively improve inner flue gas of the stove mobility and medium mixing uniformity, improve the heating uniformity of workpiece, reduce heating energy consumption, improve the burner hearth thermal efficiency.
For further promoting the UTILIZATION OF VESIDUAL HEAT IN of stove, improve flow-disturbing, heat transfer, radiation effect in stove simultaneously, Ben Mingfa heat-accumulating industrial furnace comprises the improvement of following convection current radiant wall material and structure aspects:
The fire door of described both sides is all connected with waste heat regenerator; Described convection current radiant wall is located at the wide middle part of stove between heat-accumulating industrial furnace 2 sides; The edge, highest and lowest of the aspect ratio both sides fire door on described mountain peak all exceeds 80-120mm, the width on described mountain peak than the most left and rightmost edges of both sides fire door all wide go out 80-120mm; Described hemispheroidal material is mullite, Al in its component
2o
3weight rate is not less than 56%; Sintering is gone back on described hemisphere surface high radiant rate black matrix coating, and it comprises the component of following weight rate meter: SiC:45%～65%, ZrO
2: 10%～15%, SiO
2: 10%～25%, silicic acid anhydride 3%～5%, sodium metasilicate 10%～20%.
Trial production shows: convection current radiant wall of the present utility model and heat-accumulating industrial furnace, can improve burner hearth thermal efficiency 5-10%, reduce the stove unit consumption of steel rolling heating more than 5%, improve the quality of hot-working workpiece in stove, reduce workpiece burn out rate to 0.1-0.5%, reduce the heat time 5% of workpiece in stove; Thereby enhance productivity and economic benefit comprehensively.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is that the structure master of the utility model heat-accumulating industrial furnace and convection current radiant wall embodiment looks schematic diagram.
Fig. 2 is the schematic side view of Fig. 1.
Fig. 3 is the broken section schematic perspective view of Fig. 1.
Fig. 4 is the schematic perspective view of the utility model convection current radiant wall embodiment partial structurtes.
Fig. 5 is the physical dimension schematic diagram of the utility model convection current radiant wall embodiment.
Fig. 6 is the schematic side view of Fig. 5.
The specific embodiment
As Fig. 1-6, shown in be respectively the utility model heat-accumulating industrial furnace and and the structural representation of convection current radiant wall embodiment different visual angles.This heat-accumulating industrial furnace embodiment comprises body of heater front end 11, body of heater rear end 12, furnace roof 13, furnace bottom 14, respectively has the both sides of 8 fire doors 15, and the fire door of both sides is corresponding one by one, and the fire door of described both sides is all connected with waste heat regenerator 16; Between heat-accumulating industrial furnace 2 sides, the wide middle part of stove is provided with convection current radiant wall 20; Camber line in figure and straight arrows represent multiple air flow and thermal-radiating direction.
Described convection current radiant wall 20 consists of high temperature resistant material, and it is located at both sides and respectively has more than 2 fire door and the both sides fire door wide middle part of stove of corresponding heat-accumulating industrial furnace one by one; It is between both sides fire door 15, and it comprises mountain peak 21, the mountain valley between mountain peak 21 22, the foot of the hill 23, the foot of the hill base portion 24 23 below of mountain valley below 22 of chevron projection; Described mountain peak 21 has the height H 3 and the width L1 that intercept straight-through air-flow between both sides fire door 15, the width in mountain valley 22 is L2, except base portion 24, convection current radiant wall 20 both sides in the face of on the metope of both sides fire door 15 all rule be distributed with 2 above hemispheres 30, the diameter of hemisphere 30 and be highly 15-50mm, spacing between hemisphere 30 summits is 1-2 times of sphere diameter, and the shared ratio of hemisphere 30 on unit metope is 35-80%.The material of described hemisphere 30 is mullite, Al in its component
2o
3weight rate is not less than 56%.
The height H 3 on described mountain peak all exceeds 80-120mm than the edge, highest and lowest of both sides fire door 15, the width L1 on described mountain peak than the most left and rightmost edges of both sides fire door 15 all wide go out 80-120mm.
The 1.5-3.0 that whole body of wall height H 1+H2+H3 is described base portion height H 1 doubly.
Take the central wall body thickness b1 of the convection current radiant wall of the spacing between hemisphere 30 bottoms on the metope of both sides as 100-900mm.
The material of described center body of wall comprises the high-alumina brick at middle part 25, Al in high-alumina brick component
2o
3weight rate is not less than 48%.
Sintering is gone back on described hemisphere 30 surfaces, and to have thickness be the high radiant rate black matrix coating of 1.5-3.5mm, and it comprises the component of following weight rate meter: SiC:45%～65%, ZrO
2: 10%～15%, SiO
2: 10%～25%, silicic acid anhydride 3%～5%, sodium metasilicate 10%～20%.
Claims (10)
1. a heat-accumulating industrial furnace convection current radiant wall, it is located at both sides and respectively has more than 2 fire door and both sides fire door one by one in corresponding heat-accumulating industrial furnace, it is characterized in that: described convection current radiant wall consists of high temperature resistant material, it is between the fire door of both sides, and it comprises the mountain peak of chevron projection, between peak-to-peak mountain valley, mountain, the foot of the hill below mountain valley, the base portion below the foot of the hill; Described mountain peak has the height and the width that intercept straight-through air-flow between the fire door of both sides, except base portion, convection current radiant wall both sides in the face of on the metope of both sides fire door all rule be distributed with 2 above hemispheres, hemispheroidal diameter and be highly 15-50mm, spacing between hemisphere summit is 1-2 times of sphere diameter, and the shared ratio of hemisphere on unit metope is 35-80%.
2. heat-accumulating industrial furnace convection current radiant wall as claimed in claim 1, is characterized in that: described convection current radiant wall is located at the wide middle part of stove between heat-accumulating industrial furnace 2 sides; The edge, highest and lowest of the aspect ratio both sides fire door on described mountain peak all exceeds 80-120mm, the width on described mountain peak than the most left and rightmost edges of both sides fire door all wide go out 80-120mm.
3. heat-accumulating industrial furnace convection current radiant wall as claimed in claim 1, is characterized in that: the 1.5-3.0 that whole body of wall height is described base portion height doubly.
4. heat-accumulating industrial furnace convection current radiant wall as claimed in claim 1, is characterized in that: described hemispheroidal material is mullite.
5. heat-accumulating industrial furnace convection current radiant wall as claimed in claim 1, is characterized in that: take the central wall body thickness of the convection current radiant wall of the spacing between the hemisphere bottom on the metope of both sides as 100-900mm.
6. heat-accumulating industrial furnace convection current radiant wall as claimed in claim 5, is characterized in that: the material of described center body of wall comprises high-alumina brick component.
7. heat-accumulating industrial furnace convection current radiant wall as claimed in claim 1, is characterized in that: sintering is gone back on described hemisphere surface high radiant rate black matrix coating.
8. heat-accumulating industrial furnace convection current radiant wall as claimed in claim 7, is characterized in that: the thickness of described black matrix coating is 1.5-3.5mm.
9. employing heat-accumulating industrial furnace as described in one of claim 1-8 heat-accumulating industrial furnace of convection current radiant wall, heat-accumulating industrial furnace comprises body of heater front end, body of heater rear end, furnace roof, furnace bottom, respectively has the both sides of more than 2 fire door, the fire door of both sides is corresponding one by one, it is characterized in that: described convection current radiant wall consists of high temperature resistant material, it is between the fire door of both sides, and it comprises the mountain peak of chevron projection, between peak-to-peak mountain valley, mountain, the foot of the hill below mountain valley, the base portion below the foot of the hill; Described mountain peak has the height and the width that intercept straight-through air-flow between the fire door of both sides, except base portion, convection current radiant wall both sides in the face of on the metope of both sides fire door all rule be distributed with 2 above hemispheres, hemispheroidal diameter and be highly 15-50mm, spacing between hemisphere summit is 1-2 times of sphere diameter, and the shared ratio of hemisphere on unit metope is 35-80%.
10. heat-accumulating industrial furnace as claimed in claim 9, is characterized in that: the fire door of described both sides is all connected with waste heat regenerator; Described convection current radiant wall is located at the wide middle part of stove between heat-accumulating industrial furnace 2 sides; The edge, highest and lowest of the aspect ratio both sides fire door on described mountain peak all exceeds 80-120mm, the width on described mountain peak than the most left and rightmost edges of both sides fire door all wide go out 80-120mm; Described hemispheroidal material is mullite; Take the central wall body thickness of the convection current radiant wall of the spacing between the hemisphere bottom on the metope of both sides as 100-900mm, the material of described center body of wall comprises high-alumina brick component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751938.8U CN203572224U (en) | 2013-11-25 | 2013-11-25 | Convection radiation wall for heat accumulating type industrial furnace and heat accumulating type industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751938.8U CN203572224U (en) | 2013-11-25 | 2013-11-25 | Convection radiation wall for heat accumulating type industrial furnace and heat accumulating type industrial furnace |
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| Publication Number | Publication Date |
|---|---|
| CN203572224U true CN203572224U (en) | 2014-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751938.8U Withdrawn - After Issue CN203572224U (en) | 2013-11-25 | 2013-11-25 | Convection radiation wall for heat accumulating type industrial furnace and heat accumulating type industrial furnace |
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|---|---|
| CN (1) | CN203572224U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604297A (en) * | 2013-11-25 | 2014-02-26 | 宝钢集团广东韶关钢铁有限公司 | Regenerative industrial furnace and convection radiation wall thereof |
| CN104315866A (en) * | 2014-09-29 | 2015-01-28 | 广东工业大学 | Efficient heat storage type aluminum smelting furnace |
| TWI670459B (en) * | 2018-09-28 | 2019-09-01 | 英屬維京群島商金順鑫國際商業有限公司 | Heat treatment stove |
-
2013
- 2013-11-25 CN CN201320751938.8U patent/CN203572224U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604297A (en) * | 2013-11-25 | 2014-02-26 | 宝钢集团广东韶关钢铁有限公司 | Regenerative industrial furnace and convection radiation wall thereof |
| CN103604297B (en) * | 2013-11-25 | 2015-04-29 | 宝钢集团广东韶关钢铁有限公司 | Regenerative industrial furnace and convection radiation wall thereof |
| CN104315866A (en) * | 2014-09-29 | 2015-01-28 | 广东工业大学 | Efficient heat storage type aluminum smelting furnace |
| CN104315866B (en) * | 2014-09-29 | 2019-04-26 | 广东工业大学 | High-efficiency heat-accumulating aluminium melting furnace |
| TWI670459B (en) * | 2018-09-28 | 2019-09-01 | 英屬維京群島商金順鑫國際商業有限公司 | Heat treatment stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140430 Effective date of abandoning: 20150429 |