CN102519244B - Dustproof device located in roller hearth type heat treatment furnace - Google Patents
Dustproof device located in roller hearth type heat treatment furnace Download PDFInfo
- Publication number
- CN102519244B CN102519244B CN201110461911.0A CN201110461911A CN102519244B CN 102519244 B CN102519244 B CN 102519244B CN 201110461911 A CN201110461911 A CN 201110461911A CN 102519244 B CN102519244 B CN 102519244B
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- Prior art keywords
- roller
- clean air
- air pipeline
- furnace
- sidewall
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Abstract
A dustproof device can prevent dust from entering a furnace with a simple structure, wherein roller through holes (31) are formed on a furnace body side wall (23), a hearth roller (33) used for conveying processed products penetrates the roller through holes (31), and the end parts of the hearth roller (33) are protruded from the side surface of the furnace body side wall. Clean air pipelines (41) are mounted on the outer side surface of the furnace body side wall and are located in positions above the roller through holes (31). The clean air pipelines (41) are provided with air outlets (43) opening downward, as well as baffles (44), and the air outlets (43) are covered by the baffles (44) cover from side surfaces.
Description
The application is application number is 200510103380.2, the applying date be September 20 in 2005 order, denomination of invention is the divisional application of the application for a patent for invention of " dust guard being arranged in roller furnace bed heat-treatment furnace ".
Technical field
The present invention relates to a kind of dust guard, described dust guard is used for preventing dust from entering in roller furnace bed heat-treatment furnace, this roller furnace bed heat-treatment furnace is used for needing the article processed to heat-treat, the article that described needs carry out processing are, the glass substrate such as used in plasma display panel manufacturing engineering etc. or its middle machining object product.
Background technology
As this dust guard disclosed in have: the siege roller making to be used as to process article are carried is applied on sidewall of the furnace body, and the end of its siege roller is highlighted from the side of sidewall, in the nose portion of siege roller, nested and be covered with two sealing rings, these two sealing rings are along the axially-aligned of roller, and relative sealing ring side abuts each other mutually, near that sealing ring of sidewall of the furnace body side, be fixed on sidewall of the furnace body outer surface under the state of close contact, another sealing ring then can along roller axle to moving freely, and make it load to the direction close to previous sealing ring (for example, see patent document 1: flat No. 6-265273 of Japanese Laid-Open Patent Publication) by spring.
In this dust guard of the prior art, there is following problem points.The first, in the heat resistance of sealing ring material, there is difficulty.The second, produce dust from the roller through-Penetration portion sidewall of the furnace body.3rd, because eliminating the gap between roller and sealing ring completely, therefore dust is entered in stove from stove by this gap.In addition, for by two sealing rings and spring assembling more complicated to the structure on sidewall of the furnace body and siege roller, the cost thus spent is higher.
Summary of the invention
The object of the invention is to, provide a kind of simply to construct the dust guard being formed and can prevent dust from entering into the roller furnace bed heat-treatment furnace in stove.
Dust guard provided by the invention is for the dust guard in roller furnace bed heat-treatment furnace, the structure of described roller furnace bed heat-treatment furnace is, sidewall of the furnace body defines roller through hole, be used as carrying the siege roller of processed goods through in described roller through hole, and roll end is highlighted from the side of sidewall of the furnace body, the feature of described dust guard is: on this sidewall of the furnace body outer surface, be installed with clean air pipeline, and make this clean air pipeline be positioned on the top position higher than roller through hole, clean air pipeline is provided with opening direction air outlet down, and baffle plate is provided with on clean air pipeline, this baffle plate is made to cover air outlet from the side.
In dust guard provided by the invention, around the outer openings edge part of roller through hole, be in the space that becomes folded by clean air pipeline and baffle plate, in this space, be filled with the clean air of discharging from air outlet, so dust cannot enter in this space.Even if the air outside stove enters in stove between roller through hole side face and siege rollers outer surface, because this air is clean air, be wherein do not comprise dust, so, also can prevent dust from entering in stove.
In addition, the lower edge of baffle plate is arranged on the lower position lower than the nose portion of siege roller, and in the lower edge of baffle plate, define the otch that the nose portion of siege roller can be made to run through, and the surrounding of roller through hole is widely covered by baffle plate.Like this, the effect preventing dust from entering can be increased.
In addition, between roller through hole side face and siege rollers outer surface, accompany the protective casing of metal or heat resistant glass.Like this, can prevent the sidewall of the furnace body usually formed by heat-insulating material from producing dust from roller through hole side face.
According to dust guard of the present invention, the effect simply constructing to prevent dust from entering in stove can be obtained.
Accompanying drawing explanation
Fig. 1 is the transverse cross-sectional view being carried out by dust guard of the present invention representing together with roller furnace bed heat-treatment furnace.
Fig. 2 is a sectional view part of Fig. 1 being carried out amplifying and represent.
Fig. 3 is the stereogram of the part shown in Fig. 2.
Detailed description of the invention
With reference to the accompanying drawings embodiments of the present invention are described.
In the following description, so-called left and right, refers to Fig. 1 to be benchmark, its left and right sides is called the left and right meaning.
It is square body of heater 11 that roller furnace bed heat-treatment furnace has cross section.Body of heater 11 is made up of roof 21, diapire 22 and left and right sides wall 23.These roofs 21, diapire 22 and two side 23 are formed by heat-insulating material.In addition, roof 21, diapire 22 and two side 23 has heater (not shown).The inner surface of roof 21, diapire 22 and two side 23 is covered with the dust-proof wall (not shown) of heat resistant glass.
On multiple positions on the length direction of two side 23, define the roller through hole 31 be in respectively throughout on concentric position.Metal protective casing 32 is inserted in each roller through hole 31.Material as protective casing 32 also can not adopt metal and adopt heat resistant glass.
As the siege roller 33 that the pottery level of transport process product is shaft-like, making its end from the situation that sidewall side highlights, be applied in by means of protective casing 32 in the roller through hole 31 in each position.
The clean air pipeline 41 that cross section, left and right is square, is installed on the outer surface of two side 23 with cantilever-shaped form, and its installation position is on the top position high compared with left and right roller through hole 31.For two clean air pipelines 41, although its left and right directions is contrary, there is identical structure.Below, the clean air pipeline 41 on right side is described.
On the position that the roof of clean air pipeline 41 is suitable, be connected to clean air supply pipe 42.On the diapire of clean air pipeline 41, separate certain intervals in the longitudinal direction and be provided with the downward air outlet in direction 43.On clean air pipeline 41 with on the sidewall of body of heater 11 opposite side, be provided with the baffle plate 44 made by polytetrafluoroethylene (PTFE) (registration mark) of vertical plate.The lower edge of baffle plate 44 is arranged on the lower position lower than the nose portion of siege roller 33.In the lower edge of baffle plate 44, define for making the projecting ends of siege roller 33 through otch 45 wherein.Otch 45 has inverted U-shaped profile, and has circular-arc part on top.Between this circular-arc part and the siege roller 33 outer surface first half, there is a little gap.This gap is the little degree to allowing air circulation hardly preferably.
From the clean air that air outlet 43 is discharged, be filled in the space of the opened downward formed by clean air pipeline 41 and baffle plate 44.Like this, even if air enters in body of heater 11 from the gap between siege roller 33 and protective casing 32, this air is also clean air, therefore, does not worry that the dust outside body of heater 11 can enter in body of heater 11.Particularly, among heat-treatment furnace, in intensification, unsticking mixture regional extent, negative pressure is retained as by being vented in body of heater 11, so, although the dust outside body of heater 11 probably enters in stove, owing to being clean air in this space, thus the possibility that enters of this dust just complete without.In addition, although from the side face of roller through hole 31, can produce threadiness and emboliform dust by the heat-insulating material constituting body of heater 11, dispersing of this dust is stoped by protective casing 32.
In the above description, the shape of clean air pipeline, air outlet, baffle plate and otch is not be limited to illustrated shape.Such as, otch also can not adopt otch as described above but adopt hole shape.In addition, as the material of baffle plate, also can not adopt polytetrafluoroethylene (PTFE) (registration mark) but adopt heat-resistant plastic.
Claims (3)
1. a dust guard, described dust guard is used in roller furnace bed heat-treatment furnace, the structure of described roller furnace bed heat-treatment furnace is, sidewall of the furnace body defines roller through hole, be used as carrying the siege roller of processed goods through in roller through hole, and the end of siege roller highlights from the side of sidewall of the furnace body, the feature of described dust guard is:
This sidewall of the furnace body outer surface is installed with clean air pipeline, and make this clean air pipeline be positioned on the top position higher than roller through hole, the diapire of clean air pipeline is provided with opening direction air outlet down, clean air pipeline is provided with baffle plate, this baffle plate is made to cover air outlet from the side, clean air pipeline is installed on the outer surface of two side with cantilever-shaped
The diapire of clean air pipeline is on the top position higher than roller through hole, and its roof is on the lower position lower than the upper end of sidewall of the furnace body medial surface, this clean air pipeline flatly arranges along the length direction of sidewall of the furnace body, the roof of clean air pipeline is connected with clean air supply pipe, clean air is supplied to clean air pipeline by clean air supply pipe, and by discharging downwards from air outlet in clean air pipeline.
2. dust guard as claimed in claim 1, is characterized in that: the space being formed opened downward by clean air pipeline and baffle plate.
3. dust guard as claimed in claim 1 or 2, is characterized in that: the lower edge of baffle plate is arranged on the lower position lower than the nose portion of siege roller, and the lower edge of baffle plate defines the otch that the nose portion of siege roller is run through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110461911.0A CN102519244B (en) | 2005-09-20 | 2005-09-20 | Dustproof device located in roller hearth type heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110461911.0A CN102519244B (en) | 2005-09-20 | 2005-09-20 | Dustproof device located in roller hearth type heat treatment furnace |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101033802A Division CN1936474B (en) | 2005-09-20 | 2005-09-20 | Anti-dust apparatus in roller-hearth-type heat treatment furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102519244A CN102519244A (en) | 2012-06-27 |
| CN102519244B true CN102519244B (en) | 2015-03-04 |
Family
ID=46290250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110461911.0A Expired - Fee Related CN102519244B (en) | 2005-09-20 | 2005-09-20 | Dustproof device located in roller hearth type heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102519244B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579766A (en) * | 1991-09-25 | 1993-03-30 | Ngk Insulators Ltd | Roller hearth kiln |
| US5266027A (en) * | 1992-08-12 | 1993-11-30 | Ngk Insulators, Ltd. | Roller-hearth continuous furnace |
| JPH0694370A (en) * | 1992-09-14 | 1994-04-05 | Murata Mfg Co Ltd | Sealing structure of end of driving roller for continuous furnace |
| JP2000055564A (en) * | 1999-08-20 | 2000-02-25 | Ngk Insulators Ltd | Roller hearth kiln |
| JP2000161860A (en) * | 1998-11-25 | 2000-06-16 | Koyo Thermo System Kk | Driving structure of ceramic roller |
| JP2005214453A (en) * | 2004-01-27 | 2005-08-11 | Takasago Ind Co Ltd | Atmospheric heating furnace |
-
2005
- 2005-09-20 CN CN201110461911.0A patent/CN102519244B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579766A (en) * | 1991-09-25 | 1993-03-30 | Ngk Insulators Ltd | Roller hearth kiln |
| US5266027A (en) * | 1992-08-12 | 1993-11-30 | Ngk Insulators, Ltd. | Roller-hearth continuous furnace |
| JPH0694370A (en) * | 1992-09-14 | 1994-04-05 | Murata Mfg Co Ltd | Sealing structure of end of driving roller for continuous furnace |
| JP2000161860A (en) * | 1998-11-25 | 2000-06-16 | Koyo Thermo System Kk | Driving structure of ceramic roller |
| JP2000055564A (en) * | 1999-08-20 | 2000-02-25 | Ngk Insulators Ltd | Roller hearth kiln |
| JP2005214453A (en) * | 2004-01-27 | 2005-08-11 | Takasago Ind Co Ltd | Atmospheric heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102519244A (en) | 2012-06-27 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |