CN1936474B - Anti-dust apparatus in roller-hearth-type heat treatment furnace - Google Patents
Anti-dust apparatus in roller-hearth-type heat treatment furnace Download PDFInfo
- Publication number
- CN1936474B CN1936474B CN2005101033802A CN200510103380A CN1936474B CN 1936474 B CN1936474 B CN 1936474B CN 2005101033802 A CN2005101033802 A CN 2005101033802A CN 200510103380 A CN200510103380 A CN 200510103380A CN 1936474 B CN1936474 B CN 1936474B
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- roller
- clean air
- air pipeline
- siege
- baffle plate
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Abstract
This invention relates to a dustproof device for preventing dust from entering into the oven with a simple structure, in which, a roller through hole is formed on the side wall of the oven, a hearth roller passes through the hole for transporting process products and the end of the hearth roller is extruded from the side of the side wall of the oven, a pipeline for clean air is mounted on the outer surface of the side wall of the oven and is put above the roller through hole, an air exhaust port is set on the clean air pipeline with the open-end downward and a baffle is set on the pipeline to cover the air exhaust port from the side.
Description
Technical field
The present invention relates to a kind of dust guard; Said dust guard is used to prevent that dust from entering in the roller hearth formula heat-treatment furnace; This roller hearth formula heat-treatment furnace is used for the article that needs are handled are heat-treated; The article that described needs are handled do, for example in plasma display panel manufacturing engineering etc. employed glass substrate or wherein between process article.
Background technology
Have as this dust guard is disclosed: make to be used as to be applied on the sidewall of the furnace body handling the siege roller that article carry; And the end of its siege roller is highlighted from lateral faces; On the outstanding end 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 butt each other each other; That sealing ring near sidewall of the furnace body one side; Closely be fixed on the sidewall of the furnace body outer surface under the state of contact, another sealing ring then can be mobile to freely along roller axle, and make it load (for example referring to patent documentation 1: Japan Patent open communique spy open flat 6-265273 number) to the direction near previous sealing ring by spring.
In this dust guard of the prior art, exist following problem points.The first, existing difficulty aspect the hear resistance of sealing ring material.The second, the roller portion of running through from sidewall of the furnace body produces dust.The 3rd, because of eliminating the gap between roller and the sealing ring fully, so dust enters in the stove outside stove through this gap.In addition, the structure that is used for two sealing rings and groups of springs are installed on sidewall of the furnace body and the siege roller is complicated, thereby the cost of cost is higher.
Summary of the invention
The objective of the invention is to, provide a kind of formation can prevent that dust from entering into the dust guard of the roller hearth formula heat-treatment furnace in the stove with simple structure.
Dust guard provided by the invention is the dust guard that is used for roller hearth formula heat-treatment furnace; The structure of said roller hearth formula heat-treatment furnace does; On sidewall of the furnace body, formed the roller through hole; Be used as carry processed goods the siege roller in said roller through hole, and the roller end is highlighted from the side of sidewall of the furnace body, said dust guard is characterised in that: on this sidewall of the furnace body outer surface, the clean air pipeline is installed; And this clean air pipeline is positioned at than on the high top position of roller through hole; On the clean air pipeline, be provided with opening direction air outlet down, and on the clean air pipeline, be provided with baffle plate, make this baffle plate 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, in this space, be full of the clean air of discharging from air outlet by in the folded space that becomes of clean air pipeline and baffle plate; So dust can't enter in this space.Even the outer air of stove enters in the stove between roller through hole side face and siege rollers outer surface, because this air is a clean air, wherein is not comprise dust, so, can prevent that also dust from entering in the stove.
In addition, the lower edge of baffle plate is set at than on the low lower position of the protuberance of siege roller, and on the lower edge of baffle plate, has formed the otch that the outstanding end that can make the siege roller is run through, and is widely covered by baffle plate around the roller through hole.Like this, can increase the effect that prevents that dust from getting into.
In addition, between roller through hole side face and siege rollers outer surface, accompany the protective casing of metal system or heat resistant glass system.Like this, can prevent that the sidewall of the furnace body that is formed by heat-insulating material usually from producing dust from roller through hole side face.
According to dust guard of the present invention, can obtain preventing the effect that dust gets in stove with simple structure.
Description of drawings
Fig. 1 is the transverse cross-sectional view that dust guard of the present invention is represented with roller hearth formula heat-treatment furnace.
Fig. 2 amplifies the part of Fig. 1 and the cutaway view represented.
Fig. 3 is the stereogram of part shown in Figure 2.
The specific embodiment
With reference to the accompanying drawings embodiment of the present invention is described.
In following explanation, so-called about, be meant with Fig. 1 to be benchmark, its left and right sides is called the left and right meaning respectively.
It is square body of heater 11 that roller hearth formula heat-treatment furnace has the 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, on roof 21, diapire 22 and two side 23, has heater (not shown).On the inner surface of roof 21, diapire 22 and two side 23, be covered with the dustproof wall (not shown) of heat resistant glass system.
On a plurality of positions on the length direction of two side 23, formed and be in the roller through hole 31 on the concentric position throughout respectively.In each roller through hole 31, inserted metal protective casing 32.Material as protective casing 32 can not adopt metal yet and adopts heat resistant glass.
The shaft-like siege roller 33 of pottery system level as the transport process article under the situation that its end is highlighted from the sidewall side, is applied in the roller through hole 31 in each position by means of protective casing 32.
The clean air pipeline 41 that cross section, the left and right sides is square is installed on 23 outer surfaces of two side with cantilever-shaped form, and its installation position is in than on the high top position of left and right sides roller through hole 31.For two clean air pipelines 41,, has identical construction though its left and right directions is opposite.Below, the clean air pipeline 41 on right side is described.
On the suitable position of the roof of clean air pipeline 41, connecting 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 air outlet 43 that is directed downwards.On on the clean air pipeline 41 and sidewalls body of heater 11 opposite sides, be provided with vertical tabular baffle plate 44 by polytetrafluoroethylene (PTFE) (registration mark) system.The lower edge of baffle plate 44 is set at than on the low lower position in the outstanding end of siege roller 33.On the lower edge of baffle plate 44, formed the protrusion end that is used to make siege roller 33 through wherein otch 45.Otch 45 has the profile of the word of falling U shape, and on top, has circular-arc portion.Between this circular-arc and the siege roller 33 outer surface first halves, there is a little gap.This gap is preferably little of the degree that allows circulation of air hardly.
From the clean air that air outlet 43 is discharged from, be filled in the unlimited space, the below that forms by clean air pipeline 41 and baffle plate 44.Like this, even air enters in the body of heater 11 from the gap between siege roller 33 and the protective casing 32, this air also is a clean air, therefore, does not worry that body of heater 11 outer dust can enter in the body of heater 11.Particularly; Among heat-treatment furnace, in intensification, unsticking mixture regional extent, be retained as negative pressure through exhaust in the body of heater 11; So; Though body of heater 11 outer dust enter in the stove probably, owing to be clean air in this space, the possibility that this dust gets into has not just had fully.In addition, though from the side face of roller through hole 31, can produce fibrous and emboliform dust by the heat-insulating material that has constituted body of heater 11, dispersing of this dust stoped by protective casing 32.
In above-mentioned explanation, the shape of clean air pipeline, air outlet, baffle plate and otch is not to be limited to illustrated shape.For example, otch also can not adopt the otch of above-mentioned that kind but adopt the circular hole shape.In addition, as the material of baffle plate, also can not adopt polytetrafluoroethylene (PTFE) (registration mark) but the employing heat-resistant plastic.
Claims (2)
1. dust guard; Said dust guard is used for roller hearth formula heat-treatment furnace; The structure of said roller hearth formula heat-treatment furnace does, on sidewall of the furnace body, formed the roller through hole, be used as carry processed goods the siege roller in the roller through hole; And the end of siege roller highlights from the side of sidewall of the furnace body, and said dust guard is characterised in that:
On this sidewall of the furnace body outer surface, the clean air pipeline is installed; And this clean air pipeline is positioned at than on the high top position of roller through hole; On the clean air pipeline, be provided with opening direction air outlet down, on the clean air pipeline, be provided with baffle plate, make this baffle plate cover air outlet from the side; The clean air pipeline is with on the cantilever-shaped outer surface that is installed in the two side
The clean air pipeline sets along the length direction of sidewall of the furnace body; On the roof of clean air pipeline, be connected with the clean air supply pipe; The lower edge of baffle plate is set at than on the low lower position in the outstanding end of siege roller; On the lower edge of baffle plate, formed the otch that the outstanding end that makes the siege roller is run through, said otch is the profile of the word of falling U shape, and on top, has circular-arc portion; Between this circular-arc and the siege roller first half, be formed with the gap of the degree that allows circulation of air hardly; Form the space that the below is opened wide through clean air pipeline and baffle plate, clean air is supplied to the clean air pipeline through the clean air supply pipe, and through discharging downwards from air outlet in the clean air pipeline.
2. dust guard as claimed in claim 1 is characterized in that: between roller through hole side face and siege rollers outer surface, accompany the protective casing of metal system or heat resistant glass system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101033802A CN1936474B (en) | 2005-09-20 | 2005-09-20 | Anti-dust apparatus in roller-hearth-type heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101033802A CN1936474B (en) | 2005-09-20 | 2005-09-20 | Anti-dust apparatus in roller-hearth-type heat treatment furnace |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110461911.0A Division CN102519244B (en) | 2005-09-20 | 2005-09-20 | Dustproof device located in roller hearth type heat treatment furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1936474A CN1936474A (en) | 2007-03-28 |
| CN1936474B true CN1936474B (en) | 2012-08-22 |
Family
ID=37954116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101033802A Expired - Fee Related CN1936474B (en) | 2005-09-20 | 2005-09-20 | Anti-dust apparatus in roller-hearth-type heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1936474B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214453A (en) * | 2004-01-27 | 2005-08-11 | Takasago Ind Co Ltd | Atmospheric heating furnace |
-
2005
- 2005-09-20 CN CN2005101033802A patent/CN1936474B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214453A (en) * | 2004-01-27 | 2005-08-11 | Takasago Ind Co Ltd | Atmospheric heating furnace |
Non-Patent Citations (1)
| Title |
|---|
| JP平6-94370A 1994.04.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1936474A (en) | 2007-03-28 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 |