CN208279499U - A kind of consent structure of annealing kiln - Google Patents
A kind of consent structure of annealing kiln Download PDFInfo
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- CN208279499U CN208279499U CN201820856562.XU CN201820856562U CN208279499U CN 208279499 U CN208279499 U CN 208279499U CN 201820856562 U CN201820856562 U CN 201820856562U CN 208279499 U CN208279499 U CN 208279499U
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- consent
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- jack panel
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Abstract
The utility model provides a kind of consent structure of annealing kiln, including outer panel, interior plate, consent form plate；It includes outside jack panel, inside jack panel and the second hard heat-insulated plate or the second ceramic wafer that consent, which forms plate,；Outside jack panel is set to outer panel end, and the first outside jack panel, the second outside jack panel are extended in inside side plate direction, and the second outside consent panel aperture is slightly less than the first outside consent panel aperture；Inside jack panel is set to interior plate end, and outside side plate direction extends, and inside jack panel end is equipped with the second block；Second hard heat-insulated plate or the second ceramic wafer are set to inside jack panel periphery, and one side is connected with the second block, and the ipsilateral other end is abutted with the second outside jack panel end.Be not re-used as being directly connected to the metal heat bridge of interior outer panel through the improved consent of the utility model, greatly reduce heat transfer, avoid by the excessively high bring heat loss of annealing kiln side sheet temperature, energy consumption is high the problems such as.
Description
Technical field
The utility model relates to glass machinery field more particularly to a kind of consent structures of annealing kiln.
Background technique
Annealing kiln belongs to one of key equipment in glass production line, is directly related to the quality of glass finished-product.Annealing kiln
Main function show themselves in that high temp glass band in the transmit process by roller-way inside annealing kiln, glass tape temperature is according to rule
Fixed temperature lowering curve is reduced to normal temperature state, and the permanent stress of inside glass is made to be reduced to controlled range, so as to subsequent cutting
Etc. working processes.
Lear is a continuous annealing apparatus, and shape is mostly rectangle, and length is in 60-300m (specific length root
It is determined according to process requirement)；It establishes stable temperature schedule on elongated direction, from annealing kiln inlet internal temperature about 600
DEG C, arrive about 50 DEG C of outlet temperature.Under normal circumstances, annealing kiln heat preservation zone, the especially area A, internal temperature reach as high as 600
DEG C, and annealing kiln exterior wall plate temperature then requires control at 75 DEG C or less.
According to actual needs, annealing kiln side wall is usually mounted with electric heating consent, peep hole and cinder cleaning hole, and traditional moves back
Fiery kiln side wall consent and cock body structure are then as shown in Figure 1.As shown in Figure 1, outer panel (the i.e. annealing kiln exterior wall of annealing kiln side wall
Plate) and interior plate between be equipped with consent, plug is combined in consent, is filled with heat-preservation cotton between the interior outer panel on consent periphery；
Wherein, consent is specifically connected directly by the circular hole of two kinds of pore sizes, i.e., larger-diameter outer consent and small diameter
Interior consent.It is found through prolonged application, in actual use, consent inherently constitutes one group and is directly connected to outside in annealing kiln side wall
The heat bridge of plate, considerably increases heat transfer, to further lead to consent, nearby exterior wall plate temperature is usually above 100 DEG C.Cause
This, traditional annealing kiln side wall consent structure considerably increases heat loss, causes edge temperature inside annealing kiln too low, influences
Temperature is stablized；Meanwhile the increasing of the energy consumption in annealing kiln production process is further resulted in, it is unfavorable to producing.
Accordingly, it is badly in need of improving current annealing kiln side wall consent structure at present, to reduce heat to greatest extent
Conduction, further decreases annealing kiln side sheet temperature, while being also convenient for personnel and operating in annealing kiln edge.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can reduce heat transfer to greatest extent, thus into
One step reduces annealing kiln side sheet temperature, while the consent structure of the annealing kiln operated convenient for personnel in annealing kiln edge.
The utility model solves above-mentioned technical problem using following technical scheme:
A kind of consent structure of annealing kiln forms plate including outer panel, interior plate and set on consent between the two；Institute
Stating consent and forming plate includes outside jack panel, inside jack panel and the second hard heat-insulated plate that the two is connected or the second ceramics
Plate；The outside jack panel is set to outer panel end, and successively inside side plate direction extend the first outside jack panel and with
The second connected outside jack panel of first outside jack panel, the second outside consent panel aperture are slightly less than the first outside consent plate hole
Diameter；The inside jack panel is set to interior plate end, and side plate direction extends outward, and inside consent panel aperture is slightly less than outside second
Side consent panel aperture, inside jack panel ending vertical are equipped with the second block towards the second outside jack panel direction；Described second
Hard heat-insulated plate or the second ceramic wafer are set to the periphery of inside jack panel, the side of the second hard heat-insulated plate or the second ceramic wafer
End is connected with the second block, and the ipsilateral other end is abutted with the second outside jack panel end.
One of preferred embodiment as the utility model, it is steel plate that the outer panel, interior plate, consent, which form plate,.
One of preferred embodiment as the utility model, the outer panel, interior plate and consent form the cavity that plate surrounds
Inside it is filled with the second heat-preservation cotton.
One of preferred embodiment as the utility model, the interior plate are additionally provided in the end face of outer panel side
One reinforcing rib.
One of preferred embodiment as the utility model, first reinforcing rib is specially angle stiffener；The angle steel
Reinforcing rib is vertically arranged in one side end face of interior plate, and extends from top to bottom along interior plate side, is formed at plate when in consent
After being blocked, continue to extend downwardly along consent formation board bottom end.
One of preferred embodiment as the utility model, outside jack panel bottom end are additionally provided with the second reinforcing rib.
One of preferred embodiment as the utility model, second reinforcing rib are specially to reinforce with triangle jaggy
Muscle；The band triangle reinforcing rib jaggy is vertically arranged to outside jack panel bottom, and abuts simultaneously with outer panel.
One of preferred embodiment as the utility model, the band triangle reinforcing rib jaggy is specially right angle trigonometry
Shape reinforcing rib, right angle are provided with the rectangular v notch v mutually agreed with the first outside jack panel bottom end.
One of preferred embodiment as the utility model, the outside jack panel and inside jack panel are specially hollow length
Cube shape plate, also, the axis of the two is consistent.
One of preferred embodiment as the utility model, electric heating consent, peep hole and cinder cleaning hole for annealing kiln.
One of preferred embodiment as the utility model, in actual use, consent structure is matched with plug structure；
When being used for annealing kiln peep hole and cinder cleaning hole, the plug includes sealing plate, fills in core and set on seal assembly between the two, envelope
It is sequentially connected between plate, seal assembly and plug core by pin shaft；The plug core include seben, the first heat-preservation cotton and be located at seben
The hard heat-insulated plate of interior first or the first ceramic wafer, the first hard heat-insulated plate or the first ceramic wafer are limited by the first block
In in the seben of proximal end, and continue to extend seben to the interior plate close to consent along seben end；The seal assembly
First heat-preservation cotton is then filled in seben between the first hard heat-insulated plate or the first ceramic wafer；In addition, the sealing
Component is specially heat-preservation cotton sealing element, is interference fitted with consent.
One of preferred embodiment as the utility model, the sealing plate are specially rectangle sealing plate, are additionally provided with handle on sealing plate
Hand.
One of preferred embodiment as the utility model, the seal assembly include the first seal section of close sealing plate and lean on
Second seal section of nearly first seal section, the outer diameter of the second seal section are slightly less than the outer diameter of the first seal section.
The outer diameter of one of preferred embodiment as the utility model, the seben is consistent with the outer diameter of seal assembly end.
One of preferred embodiment as the utility model, the first hard heat-insulated plate or the first ceramic wafer are specifically included and are filled out
The extension board for filling plate and extending along filling plate end, the outer diameter of extension board are slightly less than the outer diameter of filling plate；The filling sleeve-board
In seben, extension board extends along filling plate end to the interior plate direction of consent.
One of preferred embodiment as the utility model, the filling plate are consistent with the axis of extension board.
One of preferred embodiment as the utility model, first block are vertically installed in seben end, and along seben
End extends to its axis direction.
One of preferred embodiment as the utility model, in actual use, consent structure is matched with plug structure；
When being used for electric heating consent, structure is similar to plug structure when above-mentioned " when for annealing kiln peep hole and cinder cleaning hole ", main
Want the difference is that: (1) fill in core and be made of outside cock body and inside cock body, outside cock body, which is that above-mentioned " seben " is interior, to be filled with
The position of first heat-preservation cotton, inside cock body substitute position (the first hard heat-insulated plate or first ceramic wafer of above-mentioned " extension board "
It does not include extension board including filling plate)；(2) through hole that electric heating intubation is constituted laterally is opened up in entire plug structure；
(3) first hard heat-insulated plates or the first ceramic wafer are no longer to be fixed in seben by the first block, but pass through second group of pin
Axis is directly connected with the outside cock body on the left of it；(4) inside cock body is also to be fixed on the first hard by above-mentioned second group of pin shaft
Insulation board or the first ceramic wafer end.
The utility model compared with prior art the advantages of be: heat transfer can be reduced to greatest extent by providing one kind, from
And the consent knot for the annealing kiln for further decreasing annealing kiln side sheet temperature, while being operated convenient for personnel in annealing kiln edge
Structure, specific advantage are as follows:
(1) structure is simple, and transformation is convenient；
(2) outside jack panel, hard heat-insulated by second with " high temperature resistant, low thermally conductive " performance between the jack panel of inside
Plate or the second ceramic wafer are connected, and directly break traditional consent as this defect of heat bridge；It is improved through technical solutions of the utility model,
Consent is not re-used as being directly connected to the metal heat bridge of interior outer panel, greatly reduces heat transfer, further avoids due to moving back
The fiery excessively high bring heat loss of kiln side sheet temperature is serious, energy consumption is high and the inconvenient problem of personnel；
(3) interior plate is equipped with angle stiffener in the end face of outer panel side, is conducive to the entirety for increasing the present apparatus
Intensity；
(4) outside jack panel bottom end is equipped with right angled triangle reinforcing rib, and the right angle of the right angled triangle reinforcing rib is also opened
There is the rectangular v notch v mutually agreed with the first outside jack panel bottom end；When present apparatus consent cooperate plug in use, the structure into
One step increases the intensity of single unit system, improves the pressure-bearing property of the first outside jack panel.
Detailed description of the invention
Fig. 1 is traditional annealing kiln side wall consent and cock body structure chart；
Fig. 2 is the consent structural schematic diagram of annealing kiln in embodiment 1；
Fig. 3 is the left view structural representation of Fig. 2；
Fig. 4 is solid plug structure schematic diagram in embodiment 3；
Fig. 5 is the left view structural representation of Fig. 4；
Fig. 6 is the right side structural representation of Fig. 4；
Fig. 7 is the overall structure diagram that consent is matched with electric heating plug in embodiment 3；
Fig. 8 is the overall structure diagram that consent is matched with electric heating plug in embodiment 4.
In figure: 1 is outer panel, and 2 be interior plate, and 21 be angle stiffener, and 3 form plate for consent, and 31 be outside jack panel,
311 be the first outside jack panel, and 312 be the second outside jack panel, and 313 is with triangle reinforcing rib jaggy, 32 are inside
Jack panel, 321 be the second block, and 33 be the second hard heat-insulated plate, and 4 be the second heat-preservation cotton；5 be sealing plate, and 51 be handle, and 6 be plug
Core, 61 be seben, and 62 be the first heat-preservation cotton, and 63 be the first hard heat-insulated plate, and 631 be the first block, and 632 be filling plate, and 633 are
Extension board, 7 be seal assembly, and 71 be the first seal section, and 72 be the second seal section, and 8 be pin shaft；91 be outside cock body, and 92 be interior
Side cock body, 93 be through hole, and 94 be second group of pin shaft.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
Embodiment 1
Referring to figure 2-3, the consent structure of a kind of annealing kiln of the present embodiment, electric heating consent, observation for annealing kiln
Hole and cinder cleaning hole form plate 3 including outer panel 1, interior plate 2 and set on consent between the two；Wherein, outer panel 1, interior plate
2, it is steel plate that consent, which forms plate 3, and the second heat-preservation cotton 4 is filled in the cavity surrounded between three.
Consent forms plate 3 and includes outside jack panel 31, inside jack panel 32 and the two is connected second hard heat-insulated
Plate 33, outside jack panel 31 and inside jack panel 32 are specially hollow rectangular-shape plate, also, the axis of the two is consistent；
Outside jack panel 31 is set to outer panel end, and successively inside 2 direction of side plate extends the first outside jack panel 311 and with
The second connected outside jack panel 312 of one outside jack panel 311,312 aperture of the second outside jack panel are slightly less than the first outside plug
311 aperture of orifice plate；Consent 32 plate in inside is set to 2 end of interior plate, and 1 direction of side plate extends outward, 32 aperture of inside jack panel
It is slightly less than 312 aperture of the second outside jack panel, jack panel 32 ending vertical in inside is equipped with towards 312 direction of the second outside jack panel
For fixing the second block 321 of the second hard heat-insulated plate 33；Second hard heat-insulated plate 33 is set to inside jack panel 32
Periphery, left side are connected by one end of axial ray with the second block 321, the one end of left side far from axis and the second outside jack panel
312 ends abut.
Further, angle stiffener 21 is additionally provided in the end face of 1 side of outer panel on interior plate 2；The angle steel adds
Strengthening tendons are vertically arranged in 2 one side end face of interior plate, and are extended from top to bottom along 2 side of interior plate, are formed at plate 3 when in consent
After being blocked, continue to extend downwardly along consent formation 3 bottom end of plate.
Further, jack panel 31 bottom end in outside is additionally provided with triangle reinforcing rib 313 jaggy；This is with jaggy
Triangle reinforcing rib 313 is vertically arranged to outside 31 bottom of jack panel, and abuts simultaneously with outer panel 1；Still further, having
The triangle reinforcing rib 313 of notch is specially right angled triangle reinforcing rib, and right angle is provided with and 311 bottom of the first outside jack panel
Hold the rectangular v notch v mutually agreed with.
Advantage of this embodiment is that:
(1) structure is simple, and transformation is convenient；
(2) outside jack panel 31, pass through the second hard with " high temperature resistant, low thermally conductive " performance between inside jack panel 32
Insulation board 33 is connected, and directly breaks traditional consent as this defect of heat bridge；It is improved through technical solutions of the utility model, consent is
It is not re-used as connecting the metal heat bridge of interior outer panel, greatly reduces heat transfer, further avoid due to annealing kiln external wall
The excessively high bring heat loss of plate temperature is serious, energy consumption is high and the inconvenient problem of personnel；
(3) angle steel is equipped on interior plate 2 in the end face of 1 side of outer panel and reinforces 21 muscle, be conducive to increase the present apparatus
Integral strength；
(4) outside 31 bottom end of jack panel is equipped with right angled triangle reinforcing rib, and the right angle of the right angled triangle reinforcing rib is also
It is provided with the rectangular v notch v mutually agreed with 311 bottom end of the first outside jack panel；When present apparatus consent cooperation plug is in use, the knot
Structure further increases the intensity of single unit system, improves the pressure-bearing property of the first outside jack panel 311.
Embodiment 2
A kind of consent structure of annealing kiln of the present embodiment, structure is substantially the same manner as Example 1, and main difference is in
In: it includes outside jack panel 31, inside jack panel 32 and the second hard heat-insulated plate 33 that the two is connected that consent, which forms plate 3,；
That is, " the second hard heat-insulated plate 33 " in embodiment 1 is replaced with " the second ceramic wafer ", both for the low heat conduction material of high temperature resistant
Material.
Embodiment 3
Referring to fig. 4-7, the solid plug that consent structure matches in a kind of and above-described embodiment of the present embodiment, for moving back
Fiery kiln peep hole and cinder cleaning hole including sealing plate 5, plug core 6 and set on sealing plate 5 and fill in the seal assembly 7 between core 6, sealing plate 5,
It is sequentially connected between seal assembly 7 and plug core 6 by pin shaft 8；Sealing plate 5 is specially rectangle sealing plate, and sealing plate 5 is equipped with handle
51；Filling in core 6 includes seben 61, the first heat-preservation cotton 62 and the first hard heat-insulated plate 63 in seben 61, and the first hard is protected
Warm plate 63 is limited in the seben 61 of proximal end by the first block 631, and continues to extend seben 61 along 61 end of seben
To close to interior plate 2, wherein the first block 631 is specifically vertically installed in 61 end of seben, and along 61 end of seben to its axis
Direction extends；First heat-preservation cotton 62 is then filled in seben 61 between seal assembly 7 and the first hard heat-insulated plate 63；It is close
Sealing assembly 7 is the second heat-preservation cotton sealing element, is interference fitted with consent, and 71 He of the first seal section close to sealing plate 5 is specifically included
Close to the second seal section 72 of the first seal section 71, the outer diameter of the second seal section 72 is slightly less than the outer diameter of the first seal section 71, fills in
The outer diameter of plate 61 is consistent with the outer diameter of the second seal section 72.
Further, the first hard heat-insulated plate 63 specifically includes filling plate 632 and prolongs along what filling 632 end of plate was extended
Plate 633 is stretched, the outer diameter of extension board 633 is slightly less than the outer diameter of filling plate 632；Filling plate 632 is sheathed in seben 61, extension board
633 extend along filling 632 end of plate to 2 direction of interior plate of consent；It is consistent with the axis of extension board 633 to fill plate 632.
Advantage after the present embodiment plug cooperates with above-described embodiment consent is:
(1) structure is simple, and transformation is convenient；
(2) firstly, passing through the with " high temperature resistant, low thermally conductive " performance between outside jack panel 31, inside jack panel 32
Two hard heat-insulated plates 33 or the second ceramic wafer are connected, and directly break traditional consent as this defect of heat bridge；Secondly as plug core
The presence of first hard heat-insulated plate 63 or the first ceramic wafer in 6, pin shaft 8 can not form with plug core 6 and connect the another of interior outer panel
Group heat bridge；Meanwhile after consent ontology is combined with plug body, the heat of interior plate 2 also will be unable to directly be radiated to outside consent
At plate 31；Therefore, it is improved through technical solutions of the utility model, greatly reduces the thermal bridge area in annealing kiln between external wall,
And heat emissivity coefficient is also reduced, 1 temperature of annealing kiln outer panel is substantially reduced, is further avoided due on the outside of annealing kiln
The excessively high bring heat loss of wallboard temperature is serious, energy consumption is high and the inconvenient problem of personnel；
(3) interior plate 2 is equipped with angle stiffener 21 in the end face of 1 side of outer panel, is conducive to increase the present apparatus
Integral strength；
(4) outside 31 bottom end of jack panel is equipped with right angled triangle reinforcing rib, and the right angle of the right angled triangle reinforcing rib is also
It is provided with the rectangular v notch v mutually agreed with 311 bottom end of the first outside jack panel；When present apparatus consent cooperation plug is in use, the knot
Structure further increases the intensity of single unit system, improves the pressure-bearing property of the first outside jack panel 311.
Embodiment 4
Referring to Fig. 8, the electric heating plug that consent structure matches in a kind of and above-described embodiment of the present embodiment, for electricity
Consent is heated, structure is substantially the same manner as Example 3, is in place of main difference: (1) filling in core 6 and filled in by outside cock body 91 and inside
Body 92 is constituted, and outside cock body 91 is the position that the first heat-preservation cotton 62 is filled in above-mentioned " seben 61 ", and inside cock body 92 substitutes
The position (the hard heat-insulated plate 63 of the first of the present embodiment does not include extension board 633) of above-mentioned " extension board 633 "；(2) entire plug
The through hole 93 that electric heating intubation is constituted laterally is opened up in structure；(3) first hard heat-insulated plates 63 are no longer by first
Block 631 is fixed in seben 61, but is directly connected with the outside cock body 91 on the left of it by second group of pin shaft 94；(4) in
Side cock body 92 is also to be fixed on the first hard heat-insulated 63 end of plate by above-mentioned second group of pin shaft 94.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of consent structure of annealing kiln, which is characterized in that including outer panel, interior plate and set on consent between the two
Form plate；It includes outside jack panel, inside jack panel and the second hard heat-insulated plate that the two is connected that the consent, which forms plate,
Or second ceramic wafer；The outside jack panel is set to outer panel end, and successively the first outside plug is extended in inside side plate direction
Orifice plate and the second outside jack panel being connected with the first outside jack panel, the second outside consent panel aperture are slightly less than the first outside
Consent panel aperture；The inside jack panel is set to interior plate end, and side plate direction extends outward, and inside consent panel aperture is smaller
In the second outside consent panel aperture, inside jack panel ending vertical is equipped with the second block towards the second outside jack panel direction；
The second hard heat-insulated plate or the second ceramic wafer are set to the periphery of inside jack panel, the second hard heat-insulated plate or the second ceramics
One side of plate is connected with the second block, and the ipsilateral other end is abutted with the second outside jack panel end.
2. the consent structure of annealing kiln according to claim 1, which is characterized in that the outer panel, interior plate, consent shape
It is steel plate at plate.
3. the consent structure of annealing kiln according to claim 1, which is characterized in that the outer panel, interior plate and consent
It is formed in the cavity that plate surrounds filled with the second heat-preservation cotton.
4. the consent structure of annealing kiln according to claim 1, which is characterized in that the interior plate is close to outer panel side
End face in be additionally provided with the first reinforcing rib.
5. the consent structure of annealing kiln according to claim 4, which is characterized in that first reinforcing rib is specially angle steel
Reinforcing rib；The angle stiffener is vertically arranged in one side end face of interior plate, and extends from top to bottom along interior plate side, when
After consent is formed at plate and is blocked, continue to extend downwardly along consent formation board bottom end.
6. the consent structure of annealing kiln according to claim 1, which is characterized in that outside jack panel bottom end is additionally provided with
Second reinforcing rib.
7. the consent structure of annealing kiln according to claim 6, which is characterized in that second reinforcing rib is specially to have
The triangle reinforcing rib of notch；The band triangle reinforcing rib jaggy is vertically arranged to outside jack panel bottom, and simultaneously
It is abutted with outer panel.
8. the consent structure of annealing kiln according to claim 7, which is characterized in that the band triangle jaggy is reinforced
Muscle is specially right angled triangle reinforcing rib, and right angle is provided with the rectangular v notch v mutually agreed with the first outside jack panel bottom end.
9. the consent structure of annealing kiln according to claim 1, which is characterized in that the outside jack panel and inside consent
Plate is specially hollow rectangular-shape plate, also, the axis of the two is consistent.
10. the consent structure of -9 any annealing kilns according to claim 1, which is characterized in that the electricity for annealing kiln adds
Hot consent, peep hole and cinder cleaning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820856562.XU CN208279499U (en) | 2018-06-01 | 2018-06-01 | A kind of consent structure of annealing kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820856562.XU CN208279499U (en) | 2018-06-01 | 2018-06-01 | A kind of consent structure of annealing kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208279499U true CN208279499U (en) | 2018-12-25 |
Family
ID=64706613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820856562.XU Withdrawn - After Issue CN208279499U (en) | 2018-06-01 | 2018-06-01 | A kind of consent structure of annealing kiln |
Country Status (1)
| Country | Link |
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| CN (1) | CN208279499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455835A (en) * | 2018-06-01 | 2018-08-28 | 蚌埠凯盛工程技术有限公司 | A kind of consent structure of annealing kiln |
-
2018
- 2018-06-01 CN CN201820856562.XU patent/CN208279499U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455835A (en) * | 2018-06-01 | 2018-08-28 | 蚌埠凯盛工程技术有限公司 | A kind of consent structure of annealing kiln |
| CN108455835B (en) * | 2018-06-01 | 2023-06-27 | 蚌埠凯盛工程技术有限公司 | Hole plugging structure of annealing kiln |
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| AV01 | Patent right actively abandoned | ||
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Granted publication date: 20181225 Effective date of abandoning: 20230627 |
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Granted publication date: 20181225 Effective date of abandoning: 20230627 |