CN101893372B - Furnace tank for pit furnace having structure for preventing/reducing leakage of heat in furnace - Google Patents
Furnace tank for pit furnace having structure for preventing/reducing leakage of heat in furnace Download PDFInfo
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- CN101893372B CN101893372B CN201010234554.XA CN201010234554A CN101893372B CN 101893372 B CN101893372 B CN 101893372B CN 201010234554 A CN201010234554 A CN 201010234554A CN 101893372 B CN101893372 B CN 101893372B
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- 238000012856 packing Methods 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to a furnace tank for a pit furnace having a structure for preventing/reducing the leakage of heat in the furnace. The furnace tank comprises a furnace tank body (2) and a flange (1) arranged at the port of the furnace tank body (2) and is characterized in that: the flange (1) has a hollow annular structure; the four sides of the flange (1) are sealed to form an annular sealed cavity (15); an inner ring (12) of the flange is fixedly connected with the port of the furnace tank body (2); the flange (1) has an integrally-molded structure or a split hermetically-connected structure; and the annular sealed cavity (15) allows the hollow and annular flange (1) to have the structure for preventing/reducing the leakage of heat in the furnace. The hollow flange is adopted, and the middle area of the flange is the annular sealed cavity which is equivalent to a heat-insulating layer arranged at the port of the furnace tank body, so that the loss of heat conducted out of the furnace tank body through the flange can be reduced, and the advantages of preventing/reducing the leakage of heat in the furnace and realizing uniform temperature in the furnace are achieved.
Description
Technical field
The present invention relates to a kind of vertical pit furnace pot, especially relate to a kind of preventing/the reduce vertical pit furnace pot that furnace heat leaks.Belong to Equipment for Heating Processing technical field.
Background technology
At present, in Process of Chemical Thermal Treatment, conventional well formula or Scale Bell-type Heat Treatment Furnace all need Packed retort, to prevent gas effusion.For shaft furnace, retort will seal with bell, is generally a pair of flange screw sealing on application retort and bell, and sealing surface is between retort flange and bell flange.It is as a whole that retort flange and retort weld together into, they or the main load-supporting part of stove, and therefore, retort and flange need to have enough structural strengths, and prior art is selected steel manufacture.There is the shortcoming of following two aspects: (1) flange and retort weld together, close contact, due to metals both, heat conduction is large, and flange outside is directly exposed in stove outer air, causes hot short circuit, and heat is lost in a large number.(2) because a large amount of heats outwards distributes by aforementioned " hot short circuit ", be first to cause burner hearth interior on the low side near near temperature fire door, the temperature homogeneity in stove is produced to bad impact, be secondly to cause environmental pollution.
In prior art, in order to improve the temperature homogeneity in shaft furnace, researcher mainly starts with shaft furnace is improved from the layout of stove internal fan and the aspects such as installation of deflector, the utility model patent that is " 88200905.2 " as Chinese Patent Application No. discloses a kind of without internal muffle sleeve gas permeation shaft furnace, be characterized in retort without internal muffle sleeve (or claiming air guiding sleeve), furnace atmosphere circulation is by circulating fan, air channel is (by bell lower edge, wind deflector, retort wall forms) complete, during work, circulating fan timing and time delay change the furnace gas that turns to obtain turbulent flow and laminar flow periodicity alternation, make furnace atmosphere circulation more even.Meanwhile, the utility model patent that Chinese Patent Application No. is " 200620087242.X " discloses a kind of nitrogen, carbon, oxygen multiple composite leaching-well type furnace, and it makes the interior temperature of stove even by blower fan apparatus is set in stove.Above-mentioned two patents are all to make the interior temperature of stove even by increasing fan (blower fan) and deflector (ventilating duct), have following shortcoming: owing to having increased the structures such as blower fan and deflector, make the overall structure of shaft furnace become very complicated; Cause the increase of cost rising and operating cost simultaneously.
Summary of the invention
Object of the present invention, in order to overcome the defect that in prior art, shaft furnace exists, provide a kind of and prevent/reduce the vertical pit furnace pot that furnace heat leaks, it can reduce flange heat loss, make in stove temperature even, guarantee that flange and retort have enough structural strengths, there is the feature of simple in structure, reduction expense and energy consumption simultaneously.
Object of the present invention can reach by following measure:
A kind of preventing/the reduce vertical pit furnace pot that furnace heat leaks, comprise retort body and flange, flange is arranged on retort body port, its design feature is: described flange is hollow circulus, the surrounding sealing of flange, an annular seal cavity of formation, the interior ring of described flange is fixedly connected with the port of retort body; Described flange be formed in one structure or split type Hermetical connecting structure; Described annular seal cavity has hollow annular structure flanges to prevent/reduce the furnace heat structure that leaks.
Object of the present invention can also reach by following measure:
One embodiment of the present invention are: described flange is split type Hermetical connecting structure, and this flange comprises can flange outer shroud, ring, annular upper cover plate and annular lower cover in flange; The inner edge of flange outer shroud is fixedly connected with the outer rim of annular upper cover plate, annular lower cover respectively, in flange, the outer rim of ring is fixedly connected with the inner edge of annular upper cover plate, annular lower cover respectively, by ring, annular upper cover plate and annular lower cover in flange outer shroud, flange, is enclosed and is formed ring packing cavity.
One embodiment of the present invention are: between the outer rim of the inner edge of flange outer shroud and annular upper cover plate, annular lower cover, form welding connection structure, between the inner edge of the outer rim of encircling and annular upper cover plate, annular lower cover, form welding connection structure in flange; In flange, ring and retort body port locates to form welding connection structure.
One embodiment of the present invention are: in ring packing cavity, can be provided with heat-preservation cotton.
One embodiment of the present invention are: in described ring packing cavity, can be provided with the reinforcement that several are evenly arranged.
One embodiment of the present invention are: in ring packing cavity, can be provided with an annular ring, by annular ring, ring packing cavity is separated into two toroidal cavities.
One embodiment of the present invention are: in the external side of retort and flange, encircle weld and be provided with and thicken plate.
One embodiment of the present invention are: in the inner side of retort body port, can be welded with some equally distributed back-up blocks.
The invention has the beneficial effects as follows:
1, the present invention is owing to adopting hollow flange, flange zone line is ring packing cavity, be equivalent to be provided with a thermal insulation separation thermosphere in retort body port, therefore can reduce the heat loss of conducting out through flange from retort body, have and prevent/reduce that furnace heat leaks, makes the uniform beneficial effect of temperature in stove.And in ring packing cavity, insert the heat-preservation cotton that pyroconductivity is very low, can further reduce heat loss.
2, the present invention by arranging reinforcement, annular ring in ring packing cavity, above retort, thicken plate, at retort port inner side welding back-up block, improve furnace tank structure intensity with the welding of flange welding place, therefore, can guarantee that flange and retort have enough structural strengths, there is the beneficial effect of simple in structure, reduction expense and energy consumption simultaneously.
Accompanying drawing explanation
Fig. 1 is the partial cutaway schematic of vertical pit furnace pot described in the specific embodiment of the invention 1.
Fig. 2 is that the part master of vertical pit furnace pot looks generalized section described in the specific embodiment of the invention 2.
Fig. 3 is the local top cross-sectional view of vertical pit furnace pot described in the specific embodiment of the invention 2.
Fig. 4 is that the part master of vertical pit furnace pot looks generalized section described in the specific embodiment of the invention 3.
Fig. 5 is the local top cross-sectional view of vertical pit furnace pot described in the specific embodiment of the invention 3.
Fig. 6 is that the part master of vertical pit furnace pot looks generalized section described in the specific embodiment of the invention 4.
Fig. 7 is the local top cross-sectional view of vertical pit furnace pot described in the specific embodiment of the invention 4.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Specific embodiment 1:
With reference to Fig. 1, the present embodiment comprises retort body 2 and flange 1, and flange 1 is arranged on retort body 2 ports, and described flange 1 is hollow circulus, the surrounding sealing of flange 1, an annular seal cavity 15 of formation, the interior ring 12 of described flange is fixedly connected with the port of retort body 2; Described flange 1 is split type Hermetical connecting structure; Described annular seal cavity 15 has hollow annular structure flanges 1 to prevent/reduce the furnace heat structure that leaks.
In the present embodiment:
Described flange 1 comprises ring 12, annular upper cover plate 13 and annular lower cover 14 in flange outer shroud 11, flange; The inner edge of described flange outer shroud 11 welds with the outer rim of annular upper cover plate 13, annular lower cover 14 respectively, in described flange, the outer rim of ring 12 is welded with the inner edge of annular upper cover plate 13, annular lower cover 14 respectively, makes between ring 12, annular upper cover plate 13 and annular lower cover 14, to form a ring packing cavity 15 in flange outer shroud 11, flange; The inner edge of ring 12 and the welding of the outer rim of retort body 2 ports in described flange.
Described annular upper cover plate 13 and annular lower cover 14 adopt the thick steel plate of 4mm, and described flange outer shroud and described interior ring system are 30mm, and thickness is 10mm, and the difference in outer shroud external diameter and interior ring footpath is 100mm.Flange zone line is ring packing cavity, can reduce the heat loss of conducting out from retort, and is provided with the heat-preservation cotton that pyroconductivity is very low in described ring packing cavity 15, further reaches the object that reduces heat loss.
Specific embodiment 2:
With reference to Fig. 2 and Fig. 3, the feature of the present embodiment is: in described ring packing cavity 15, be provided with 16 reinforcements that are radially evenly arranged 16, the width of described reinforcement 16 is 6mm, plays the effect that improves furnace tank structure intensity.Other is identical with specific embodiment 1.
Specific embodiment 3:
With reference to Fig. 4 and Fig. 5, the feature of the present embodiment is: in described ring packing cavity 15, be welded with the intermediate annular circle 17 that a width is 6mm, annular ring 17 is separated into two toroidal cavities by described ring packing cavity 15, further improves the structural strength of retort.Other is identical with specific embodiment 1 or specific embodiment 2.
Specific embodiment 4:
With reference to Fig. 6 and Fig. 7, the feature of the present embodiment is: that in retort body 2 outsides and flange, encircles that 12 welds are provided with 6mm thickens plate 18, to increase the intensity at fire door place, in the inner side of retort body 2 ports, be welded with 16 equally distributed back-up blocks 19, this group back-up block can further increase the intensity of fire door load-bearing place simultaneously.Other is identical with specific embodiment 1, specific embodiment 2 or specific embodiment 3.
Specific embodiment 5:
The feature of the present embodiment is: described flange 1 structure that is formed in one.
The above; it is only preferably specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, all being belonged to protection scope of the present invention.
Claims (6)
1. a vertical pit furnace pot that prevents/reduce that furnace heat leaks, comprise retort body (2) and flange (1), flange (1) is arranged on retort body (2) port, it is characterized in that: described flange (1) is hollow circulus, the surrounding sealing of flange (1), a formation annular seal cavity (15), the interior ring (12) of described flange is fixedly connected with the port of retort body (2); Described flange (1) structure that is formed in one; Described annular seal cavity (15) has hollow annular structure flanges (1) to prevent/reduce the furnace heat structure that leaks; In ring packing cavity (15), be provided with an annular ring (17), by annular ring (17), ring packing cavity (15) be separated into two toroidal cavities.
2. a kind of preventing according to claim 1/reduce the vertical pit furnace pot that furnace heat leaks, is characterized in that: described flange (1) comprises ring (12), annular upper cover plate (13) and annular lower cover (14) in flange outer shroud (11), flange; The inner edge of flange outer shroud (11) is fixedly connected with the outer rim of annular upper cover plate (13), annular lower cover (14) respectively, in flange, the outer rim of ring (12) is fixedly connected with the inner edge of annular upper cover plate (13), annular lower cover (14) respectively, by ring (12), annular upper cover plate (13) and annular lower cover (14) in flange outer shroud (11), flange, is enclosed and is formed ring packing cavity (15).
3. a kind of preventing according to claim 2/the reduce vertical pit furnace pot that furnace heat leaks, it is characterized in that: between the outer rim of the inner edge of flange outer shroud (11) and annular upper cover plate (13), annular lower cover (14), form welding connection structure, in flange, between the inner edge of the outer rim of ring (12) and annular upper cover plate (13), annular lower cover (14), form welding connection structure; In flange, ring (12) and retort body (2) port locates to form welding connection structure.
4. a kind of preventing according to claim 1 and 2/reduce the vertical pit furnace pot that furnace heat leaks, is characterized in that: in ring packing cavity (15), be provided with heat-preservation cotton.
5. according to a kind of the preventing described in claim 2 or 3/reduce the vertical pit furnace pot that furnace heat leaks, it is characterized in that: in retort body (2) outside and flange, encircle (12) weld and be provided with and thicken plate (18).
6. according to a kind of the preventing described in claim 2 or 3/reduce the vertical pit furnace pot that furnace heat leaks, it is characterized in that: the inner side at retort body (2) port is welded with some equally distributed back-up blocks (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010234554.XA CN101893372B (en) | 2010-07-22 | 2010-07-22 | Furnace tank for pit furnace having structure for preventing/reducing leakage of heat in furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010234554.XA CN101893372B (en) | 2010-07-22 | 2010-07-22 | Furnace tank for pit furnace having structure for preventing/reducing leakage of heat in furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101893372A CN101893372A (en) | 2010-11-24 |
| CN101893372B true CN101893372B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010234554.XA Active CN101893372B (en) | 2010-07-22 | 2010-07-22 | Furnace tank for pit furnace having structure for preventing/reducing leakage of heat in furnace |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261832A (en) * | 2011-06-08 | 2011-11-30 | 上海交通大学 | Vertical pit furnace pot with hollow flange |
| CN102288030B (en) * | 2011-07-21 | 2014-09-03 | 广东世创金属科技有限公司 | Uniform-heating screen with cooling structure for thermally-stimulated furnace |
| CN103776259B (en) * | 2012-10-23 | 2017-08-01 | 天龙科技炉业(无锡)有限公司 | A kind of sealing device for shaft furnace mouthful |
| CN106868238B (en) * | 2017-02-28 | 2019-04-12 | 西安交通大学 | One kind being used for the granulated granulator system of molten slag |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3622135A (en) * | 1968-10-03 | 1971-11-23 | Degussa | Vacuum oven for evenly heating workpieces |
| SU1459378A1 (en) * | 1986-09-09 | 1995-12-10 | Е.И. Старовойтенко | Gasostat furnace heat-insulating hood |
| CN2540547Y (en) * | 2002-05-21 | 2003-03-19 | 山东齐鲁武峰塑料制品有限公司 | Plastic flange |
| CN101825394A (en) * | 2010-06-04 | 2010-09-08 | 上海交通大学 | Structure for bell-type and well-type mixed furnace |
-
2010
- 2010-07-22 CN CN201010234554.XA patent/CN101893372B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3622135A (en) * | 1968-10-03 | 1971-11-23 | Degussa | Vacuum oven for evenly heating workpieces |
| SU1459378A1 (en) * | 1986-09-09 | 1995-12-10 | Е.И. Старовойтенко | Gasostat furnace heat-insulating hood |
| CN2540547Y (en) * | 2002-05-21 | 2003-03-19 | 山东齐鲁武峰塑料制品有限公司 | Plastic flange |
| CN101825394A (en) * | 2010-06-04 | 2010-09-08 | 上海交通大学 | Structure for bell-type and well-type mixed furnace |
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| CN101893372A (en) | 2010-11-24 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Owner name: GUANGDONG SHICHUANG METAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUANGDONG STRONG METAL TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 528313, Stone Industrial Park, Chencun Town, Shunde District, Guangdong, Foshan, 32 Patentee after: GUANGDONG STRONG METAL TECHNOLOGY CO.,LTD. Address before: 528313, Stone Industrial Zone, Chencun Town, Shunde District, Guangdong, Foshan Patentee before: GUANGDONG STRONG METAL TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A well type furnace pot with a structure to prevent/reduce heat leakage inside the furnace Effective date of registration: 20231031 Granted publication date: 20140409 Pledgee: Agricultural Bank of China Limited Shunde Chencun sub branch Pledgor: GUANGDONG STRONG METAL TECHNOLOGY CO.,LTD. Registration number: Y2023980063429 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |