CN201497364U - Furnace door sealing device applicable for box heat treatment furnace - Google Patents
Furnace door sealing device applicable for box heat treatment furnace Download PDFInfo
- Publication number
- CN201497364U CN201497364U CN 200920232537 CN200920232537U CN201497364U CN 201497364 U CN201497364 U CN 201497364U CN 200920232537 CN200920232537 CN 200920232537 CN 200920232537 U CN200920232537 U CN 200920232537U CN 201497364 U CN201497364 U CN 201497364U
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- fire door
- steel plate
- seal groove
- furnace
- furnace door
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Abstract
The utility model relates to a furnace door sealing device applicable for box heat treatment furnace. A furnace mouth on the upper edge of a end wall steel plate is welded with flat steels which are in parallel with each other to form an inner seal groove and an outer seal groove. The seal grooves are filled with sealing rings. A furnace door opposite to the sealing rings is provided with a steel plate to form an inner seal cutter and an outer seal cutter. The end wall steel plate is also welded with a track. The inside of the track is provided with a vertical guide slot for an idler wheel of the furnace door to move up and down, and a horizontal guide slot for the idler wheel of the furnace door to move forward and backward. The end wall steel plate is welded with a horizontal channel steel along a fore-and-aft direction. The channel steel is provided with a long straight hole. The end wall steel plate is also provided with an air cylinder. An end part of the cylinder piston rod is connected with a clamping rail. One end of the clamping rail has a through groove structure, while the other end thereof is arranged in the long straight hole of the channel steel. The furnace door is also convexly provided with a pressing block. The pressing block is inserted in the through groove. When the cylinder piston rod resets, the furnace door is driven to be close to the end wall. The sealing cutters on the furnace door are in close contact with the sealing rings in the seal grooves on the end wall so as to realize excellent sealing.
Description
Technical field
The utility model relates to a kind of furnace door sealing device, relates in particular to the furnace door sealing device of box-annealing furnace, soaking pit and heating furnace in the heat-treatment furnace.
Background technology
In the process of heat-treating in box heat-treatment furnace, oven door sealing missionary society causes the heat in the stove to run off from fire door easily, makes whole heat treatment cycle time lengthening, energy waste; Material temperature near door side does not often reach the temperature that sets, and makes the poor temperature uniformity in the whole burner hearth.
The sealing of at present main employing all is a hilted broadsword, has only one deck sealing ring, on the fire door with chilled water unit, increased the weight of fire door weight, and chilled water unit often do not reach the cooling effect of expection, fire door is easy to distortion; To fire door compress also that just design has a downward bending-like toward the headwall direction at the guide rail place, make the fire door roller clip inside the track of bending by the deadweight of fire door, if when furnace pressure is higher, be easy to make fire door to unclamp once more.
In order to overcome the above problems, will consider to prevent fire door distortion, oven door sealing design, a kind of more effective furnace door sealing device is provided.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of furnace door sealing device that is applicable to box heat-treatment furnace is provided.
The purpose of this utility model is achieved through the following technical solutions:
Be applicable to the furnace door sealing device of box heat-treatment furnace, characteristics are: fire door is welded with the band steel that is parallel to each other in headwall steel plate upper edge, forms the interior seal groove and the external seal groove of spill, all is filled with sealing ring in described interior seal groove and the external seal groove; The fire door relative with the external seal groove with described interior seal groove is provided with the steel plate that protrudes the fire door inner surface, sealing cutter and external seal cutter in forming, and described interior sealing cutter and interior seal groove match, and described external seal cutter and external seal groove match; Also be welded with track on the headwall steel plate, be provided with vertical guide slot that moves up and down for the fire door roller and the horizontal guide groove that seesaws for the fire door roller in the described track, the bottom of described vertical guide slot is connected transition with horizontal guide groove; In addition, fore-and-aft direction is welded with horizontal channel-section steel in headwall steel plate upper edge, has long straight hole on the channel-section steel, and the direction of long straight hole is parallel to the direction that fire door seesaws; Cylinder also is installed on the headwall steel plate, and cylinder is parallel with channel-section steel arranges side by side, and the end of described cylinder piston rod connects grip rails, and an end of described grip rails is straight-through up and down bathtub construction, and the other end of grip rails places the long straight hole of channel-section steel; Also convex with briquetting on fire door, described briquetting embeds in the straight-through up and down groove of grip rails.
Further, the above-mentioned furnace door sealing device that is applicable to box heat-treatment furnace, wherein, described sealing ring is the heat-resisting braid over braid of alumina silicate.
Further, the above-mentioned furnace door sealing device that is applicable to box heat-treatment furnace, wherein, the vertical guide slot bottom of described track is welded with a wedge that is used for guiding centering.
Again further, the above-mentioned furnace door sealing device that is applicable to box heat-treatment furnace, wherein, the gradient of described wedge is 2～3 °.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
The utility model novel structure is compressed by the air cylinder driven fire door, and is reliable; When cylinder piston rod resets, drive fire door and rely on the headwall direction, fire door is compressed fully, and the interior sealing cutter on the fire door and external seal cutter respectively with headwall in seal groove closely contact with sealing ring in the external seal groove, realized the excellent sealing in the stove course of work.In addition, also changed original fire door and stove frame steel construction and easily caused distortion, sealing defect of bad, guaranteed the continuity of producing from structure; And then guaranteed the temperature homogeneity of product in the burner hearth to greatly reduce energy consumption and maintenance load.Cost is low, function is remarkable, and is ease in use, and economic benefit and social effect are remarkable.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: the utility model device overlook partial schematic diagram;
The partial schematic diagram of Fig. 2: Fig. 1;
Fig. 3: the schematic diagram of fire door roller and track.
The implication of each Reference numeral sees the following form among the figure:
| Reference numeral | Implication | Reference numeral | Implication | | Implication | |
| 1 | |
2 | The |
3 | The internal |
|
| 4 | |
5 | |
6 | The fire door roller | |
| 7 | |
8 | |
9 | |
|
| 10 | Briquetting | 11 | Channel-section steel | A | Headwall | |
| B | Fire door | C | Fire door |
The specific embodiment
As shown in Figure 1 and Figure 2, be applicable to the furnace door sealing device of box heat-treatment furnace, stove gate is welded with the band steel that is parallel to each other in the steel plate upper edge of headwall A, form the interior seal groove 3 and the external seal groove 4 of spill, all be filled with sealing ring in interior seal groove 3 and the external seal groove 4, the sealing ring material is the heat-resisting braid over braid of alumina silicate; The fire door relative with interior seal groove 3 and external seal groove 4 is provided with the steel plate (available band steel or angle steel are made) that protrudes the fire door inner surface, sealing cutter 1 and external seal cutter 2 in steel plate be arranged in parallel and forms, interior sealing cutter 1 matches with interior seal groove 3, and external seal cutter 2 matches with external seal groove 4; The channel-section steel of door side is provided with fire door roller 6, by screw it is fixed; On the headwall steel plate, also be welded with track 5, be provided with vertical guide slot that moves up and down for fire door roller 6 and the horizontal guide groove that seesaws for fire door roller 6 in the track 5, the bottom of vertical guide slot is connected transition with horizontal guide groove, be bending-like towards the headwall direction, can make fire door rely on headwall along the direction of bending; The bottom of the vertical guide slot of track is welded with the wedge 7 that is used for the transition guiding centering, and as Fig. 3, the gradient of wedge is 2～3 °, and the gradient direction need be omited on the upper side in the bending steel plate, wedge make the fire door roller move up and down transfer to before and after centering before the horizontal movement.In order to ensure cylinder piston rod in the horizontal direction along elastic, grip rails also need make it to have the displacement of above-below direction with a horizontal support power, at headwall steel plate upper edge fore-and-aft direction weld horizontal channel-section steel 11, have long straight hole on the channel-section steel 11, the direction of long straight hole is parallel to the direction that fire door seesaws, the length of long straight hole is greater than the cylinder stroke, makes the grip rails can be along with the flexible of cylinder piston rod moves in long straight hole.Cylinder 8 is installed on the headwall steel plate, the cylinder seat of cylinder 8 is fastened on the headwall steel plate by bolt, cylinder 8 and channel-section steel 11 are parallel arranges side by side, the end of cylinder piston rod is connected with grip rails 9 by bearing pin, one end of grip rails 9 is straight-through up and down bathtub construction, and the other end of grip rails 9 places the straight hole of channel-section steel 11; On fire door B, the extension is arranged, 10 ends that are welded in the extension of briquetting, the length of extension can just make briquetting be embedded in the straight-through up and down groove of grip rails, and leaves the space of about 15mm with grip rails.
The stove gate position of headwall A be welded in by band steel form on the headwall steel plate in seal groove 3 and external seal groove 4, fill the heat-resisting braid over braid of alumina silicate in the seal groove and form sealing ring, using the advantage of the heat-resisting braid over braid of alumina silicate is that heat-resisting quantity is strong, saved the water-cooled mount structure of fire door, and be at stove and should not make fire door distortion under the high-temperature work environment.In the door structure corresponding, protrude the steel plate of fire door inner surface (towards the surface of headwall direction), sealing cutter 1 and external seal cutter 2 in forming with the headwall seal groove.Also be provided with the track 5 that moves forward and backward up and down for fire door roller 6 in addition on the headwall surface, at the fire door place that puts in place that descends, track is the bending-like of a horizontal direction towards the headwall direction, vertical guide slot and wedge 7 of horizontal guide groove transition position weldering at track, when fire door descends, wedge 7 when fire door roller 6 moves downwards in track on the bump track, utilize the deadweight of fire door and the gradient of wedge that fire door is carried out centering, drive by cylinder 8 and to drive fire doors and rely on the headwall direction, the interior sealing cutter 1 that makes fire door and external seal cutter 2 respectively with headwall on interior seal groove 3 closely contact with the heat-resisting braid over braid of alumina silicate in the external seal groove 4.Air cylinder base directly is fixed on the steel plate on headwall surface, the termination of cylinder piston rod is connected with grip rails 9, because of fire door need have displacement at above-below direction, and cylinder is to be fixed on the headwall, if fire door directly is connected with cylinder and will finishes obviously that to move up and down be infeasible, so these needs are satisfied in the effect of grip rails just, design has briquetting 10 on fire door, and briquetting 10 is slided up and down in the straight-through up and down groove of grip rails; When the cylinder piston rod retracted for clearance, one end of grip rails 9 seesaws along the long straight hole of channel-section steel 11, the briquetting 10 of grip rails 9 other ends driving simultaneously is being with fire door to rely on the headwall direction, when cylinder piston rod resets fully, fire door is also just compacted, realize the sealing fully of the stove course of work, improved the sealing of fire door.
The concrete course of work is: if fire door need be closed, at first, fire door roller 6 moves downward along the vertical guide slot in the track 5, and it is descending that fire door roller 6 drives fire door B, and cylinder is not worked, and briquetting 10 slides downwards in the straight-through up and down groove of grip rails simultaneously; When coming downwards to the bottom in the vertical guide slot of fire door roller 6 at track, wedge 7 on the fire door roller 6 bump tracks, utilize the deadweight of fire door and the gradient of wedge that fire door is carried out centering, this moment cylinder operation, cylinder piston rod shrinks, one end of grip rails 9 is made forward movement along the long straight hole of channel-section steel 11, the briquetting 10 of grip rails 9 other ends driving simultaneously is being with fire door B to move to headwall A direction, fire door roller 6 slides in the horizontal guide groove of track 5, fire door B relies on headwall A, make fire door B closed at fire door C place, sealing ring closely contacts in the interior seal groove 3 on interior sealing cutter 1 on the fire door and the headwall, sealing ring closely contacts in external seal cutter 2 and the external seal groove 4, realizes the sealing of fire door.
If fire door needs to open, at first, cylinder operation, cylinder piston rod stretches out, one end of grip rails 9 is done setback along the straight hole of channel-section steel 11, grip rails 9 other ends drive and go after briquetting 10 is being with fire door B to deviate from headwall A simultaneously, fire door roller 6 slides in the horizontal guide groove of track 5, fire door B leaves headwall A, when walking to the end place after in the horizontal guide groove of fire door roller 6 at track, it is up that elevating mechanism on the fire door drives fire door, fire door roller 6 carries out the transition in the vertical guide slot from the horizontal guide groove of track, and fire door roller 6 moves upward along the vertical guide slot in the track 5, and cylinder is not worked, briquetting 10 upwards slides in the straight-through up and down groove of grip rails simultaneously, and fire door B is opened.
In sum, the utility model design is unique, is compressed by the air cylinder driven fire door, and is simple for structure, reliable; When cylinder piston rod resets, drive fire door and rely on the headwall direction, fire door is compressed fully, and the interior sealing cutter on the fire door and external seal cutter respectively with headwall in seal groove closely contact with sealing ring in the external seal groove, realized the excellent sealing in the stove course of work.In addition, also changed original fire door and stove frame steel construction and easily caused distortion, sealing defect of bad, guaranteed the continuity of producing from structure; And then guaranteed the temperature homogeneity of product in the burner hearth to greatly reduce energy consumption and maintenance load, effect is very desirable.
What need understand is: above-mentioned explanation is not to be to restriction of the present utility model, and in the utility model design scope, the interpolation of being carried out, conversion, replacement etc. also should belong to protection domain of the present utility model.
Claims (4)
1. be applicable to the furnace door sealing device of box heat-treatment furnace, it is characterized in that: fire door is welded with the band steel that is parallel to each other in headwall steel plate upper edge, forms the interior seal groove and the external seal groove of spill, all is filled with sealing ring in described interior seal groove and the external seal groove; The fire door relative with the external seal groove with described interior seal groove is provided with the steel plate that protrudes the fire door inner surface, sealing cutter and external seal cutter in forming, and described interior sealing cutter and interior seal groove match, and described external seal cutter and external seal groove match; Also be welded with track on the headwall steel plate, be provided with vertical guide slot that moves up and down for the fire door roller and the horizontal guide groove that seesaws for the fire door roller in the described track, the bottom of described vertical guide slot is connected transition with horizontal guide groove; In addition, fore-and-aft direction is welded with horizontal channel-section steel in headwall steel plate upper edge, has long straight hole on the channel-section steel, and the direction of long straight hole is parallel to the direction that fire door seesaws; Cylinder also is installed on the headwall steel plate, and cylinder is parallel with channel-section steel arranges side by side, and the end of described cylinder piston rod connects grip rails, and an end of described grip rails is straight-through up and down bathtub construction, and the other end of grip rails places the long straight hole of channel-section steel; Also convex with briquetting on fire door, described briquetting embeds in the straight-through up and down groove of grip rails.
2. the furnace door sealing device that is applicable to box heat-treatment furnace according to claim 1 is characterized in that: described sealing ring material is the heat-resisting braid over braid of alumina silicate.
3. the furnace door sealing device that is applicable to box heat-treatment furnace according to claim 1 is characterized in that: the vertical guide slot bottom of described track is welded with the wedge that is used for guiding centering.
4. the furnace door sealing device that is applicable to box heat-treatment furnace according to claim 3 is characterized in that: the gradient of described wedge is 2～3 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920232537 CN201497364U (en) | 2009-09-16 | 2009-09-16 | Furnace door sealing device applicable for box heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920232537 CN201497364U (en) | 2009-09-16 | 2009-09-16 | Furnace door sealing device applicable for box heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201497364U true CN201497364U (en) | 2010-06-02 |
Family
ID=42440569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920232537 Expired - Lifetime CN201497364U (en) | 2009-09-16 | 2009-09-16 | Furnace door sealing device applicable for box heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201497364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829636A (en) * | 2012-09-20 | 2012-12-19 | 上海发那科机器人有限公司 | Control mechanism for opening and closing heating furnace door |
| CN103924032A (en) * | 2014-04-03 | 2014-07-16 | 宝钢工程技术集团有限公司 | Water-cooled cover working door |
-
2009
- 2009-09-16 CN CN 200920232537 patent/CN201497364U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829636A (en) * | 2012-09-20 | 2012-12-19 | 上海发那科机器人有限公司 | Control mechanism for opening and closing heating furnace door |
| CN102829636B (en) * | 2012-09-20 | 2014-08-13 | 上海发那科机器人有限公司 | Control mechanism for opening and closing heating furnace door |
| CN103924032A (en) * | 2014-04-03 | 2014-07-16 | 宝钢工程技术集团有限公司 | Water-cooled cover working door |
| CN103924032B (en) * | 2014-04-03 | 2015-11-11 | 宝钢工程技术集团有限公司 | Water cooled cover cleaning door |
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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: 20100602 Effective date of abandoning: 20090916 |