CN207159090U - The manufacture device of glass article - Google Patents
The manufacture device of glass article Download PDFInfo
- Publication number
- CN207159090U CN207159090U CN201720946372.2U CN201720946372U CN207159090U CN 207159090 U CN207159090 U CN 207159090U CN 201720946372 U CN201720946372 U CN 201720946372U CN 207159090 U CN207159090 U CN 207159090U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- glass article
- glass
- manufacture device
- ceiling portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Furnace Charging Or Discharging (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
A kind of manufacture device of glass article is the utility model is related to, its problem is, when the sleeve by being rotated with the posture being inclined relative to horizontal is come from melten glass molding glass article, it is possible to increase the heat insulating ability of melten glass and the quality of glass article.The cylindric sleeve (2) for the posture rotation that melten glass (G) is wound in be inclined relative to horizontal, when pulling out the melten glass from the leading section of sleeve (2) (2a) and being configured to tubular glass (PG) simultaneously, the working chamber is heated from the outside of working chamber (3), the working chamber includes covering from above the ceiling portion (9) formed by refractory body of sleeve (2), and in inner side containing sleeve (2), now, the posture in ceiling portion (9) is set to copy the posture of sleeve (2) and be inclined relative to horizontal.
Description
Technical field
It the utility model is related to the manufacture device for manufacturing the glass articles such as tubular glass, bar-shaped glass.
Background technology
It is well known that as the method for manufacturing the glass articles such as tubular glass, bar-shaped glass, Dan Na can be enumerated
Method, glass tube down-drawing (downdraw), up-drawing method (updraw) etc., Patent Document 1 discloses manufacture glass using danner process
The device of article.The cylindric sleeve for the posture rotation that the device possesses to be inclined relative to horizontal, in inner side, collecting covers
The working chamber of cylinder and the heating arrangements heated from outside to working chamber.Moreover, the device is configured to:Set will be wound in
The melten glass of cylinder pulls out from the front end of sleeve and the melten glass is configured into glass article simultaneously.
In addition, above-mentioned device has Muffle furnace.Muffle furnace possesses Muffle furnace exterior wall members, in Muffle furnace exterior wall members
The Muffle furnace inner surface component and the Muffle furnace ceiling in the setting of the top of Muffle furnace inner surface component that inner side is set.Moreover,
Sleeve is surrounded as Muffle furnace inner surface component and both Muffle furnace ceilings, working chamber is formed by both.Muffle furnace ceiling turns into
The ceiling portion of sleeve is covered from above with the posture with plane-parallel, by carbonization silicon systems refractory body, aluminium-zirconium oxide system refractory body
Formed Deng refractory body.
Citation
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2009-234873 publications
The utility model problem to be solved
However, in the case where manufacturing glass article by above-mentioned device, what should be solved as generation is following asks
Topic.
That is, in above-mentioned device, working chamber is heated from outside using heating arrangements, so as to indirectly to shaping
The indoor melten glass for being wound in sleeve is heated.Here, in the apparatus, sleeve takes what is be inclined relative to horizontal
Posture, on the other hand, the ceiling portion of cover sleeve take the posture with plane-parallel.Therefore, sleeve and ceiling portion is mutual
Between distance it is relatively short in the base end side of sleeve, it is relatively long in front.Thus, in the base end side of sleeve, ceiling can be made
Portion is approached with being wound in the melten glass of sleeve, and easily melten glass is heated, on the other hand, in the front of sleeve,
With being correspondingly difficult to heat the melten glass for being wound in sleeve away from ceiling portion.Accordingly, there exist the insulation of melten glass
The problem of property difference.
In addition, in above-mentioned device, the composition that melten glass volatilizes sometimes occurs with forming the refractory body in ceiling portion
React and generate the foreign matter of liquid.Moreover, the foreign matter generated is fallen from ceiling portion as drop sometimes, it is mixed into and is wound in set
The melten glass of cylinder.In this case, glass article is shaped by the melten glass for being mixed into foreign matter and formed, and is existed and is produced
The quality of glass article the problem of being greatly reduced or being not used as product.
Utility model content
The technical task of the present utility model completed in view of the above circumstances is, by with respect to the horizontal plane to incline
The sleeve of oblique posture rotation come from melten glass molding glass article when, improve the heat insulating ability and glass article of melten glass
Quality.
For solving the scheme of problem
In order to solve above-mentioned problem and complete the utility model is related to a kind of manufacture device of glass article, it has
It is standby:Cylindric sleeve, it is rotated with the posture being inclined relative to horizontal;Working chamber, it includes covering from above sleeve
The ceiling portion formed by refractory body, and in inner side containing sleeve;And heating arrangements, it is heated from outside to working chamber,
The melten glass for being wound in sleeve is pulled out and simultaneously melts this by the manufacture device of the glass article from the leading section of sleeve
Forming of glass is glass article, and the manufacture device of the glass article is characterised by, the posture in ceiling portion copies the appearance of sleeve
State and be inclined relative to horizontal.
According to such structure, it is inclined relative to horizontal because the posture in ceiling portion copies the posture of sleeve, therefore
In the base end side of sleeve ceiling portion can not only be made to be approached with being wound in the melten glass of sleeve, also can make ceiling in front
Portion approaches with being wound in the melten glass of sleeve.As a result, also easily melten glass is carried out even in the front of sleeve
Heating, it is possible to increase the heat insulating ability of melten glass.In addition, the composition volatilized even in melten glass is with forming the resistance to of ceiling portion
In the case that fiery thing reacts and generates the foreign matter of liquid, foreign matter also can be because of deadweight and along inclined ceiling portion from sleeve
Base end side is flowed towards front, and thus foreign matter is removed from the top of sleeve.Thereby, it is possible to avoid occurring foreign matter from ceiling portion
Fallen as drop and be mixed into the situation for the melten glass for being wound in sleeve.The result is that, it is possible to increase the glass produced
The quality of article.
In such a configuration, it is preferred that ceiling portion has:Top, it is in axial direction of the top of sleeve along sleeve
Extension;And rake, it is tilted towards the side side of sleeve from top down side.
So, the foreign matter of liquid flows along rake, so as to not only be flowed from the base end side of sleeve towards front, also
Flowed towards the side side of sleeve.As a result, more efficiently foreign matter can be removed from the top of sleeve.
In such a configuration, it is preferred that axial direction of the ceiling portion along sleeve is divided into some ceilings, and
Each several part ceiling is formed as the integrative-structure thing that seam is not present in refractory body.
So, some ceilings are divided into by ceiling portion, so as to easily carry out the operation for changing ceiling portion
Deng.Also, each several part ceiling is formed as refractory body and the integrative-structure thing of seam is not present, therefore can also access as described below
Effect.That is, ceiling portion easily has power upward (by the direction lifted in ceiling portion because of the thermal expansion of refractory body
Power).Moreover, in the case where each several part ceiling is not formed as integrative-structure thing and refractory body has seam, each several part ceiling has
It may occur with the effect of power upward and using seam as starting point damaged.When situation as generation, melten glass
The composition volatilized enters damaged portion, not only in the skin section of each several part ceiling, or even internally also easily generates the different of liquid
Thing.If however, each several part ceiling is formed as into integrative-structure thing of the refractory body in the absence of seam, can reliably exclude above-mentioned
Possibility.
In such a configuration, it is preferred that adjacent part ceiling is linked with intermeshing state each other.
For working chamber, it is necessary to by divided inside and outside it avoid outside working chamber be heated after gas
Flow into working chamber.If here, mutual between each other formed with gap in adjacent part ceiling, can not necessarily avoid by
Gas after heating is flowed into working chamber.If however, adjacent part ceiling each other with intermeshing state link, can
The formation in gap is prevented as best one can, therefore can be effectively prevented from the inflow of the gas after heating.
In such a configuration, it is preferred that the refractory body for forming ceiling portion contains more than 50% β oxygen based on quality %
Change aluminium.
So, the composition that melten glass volatilizes is not easy to react with forming the refractory body in ceiling portion.Therefore, it is inevitable
The foreign matter that liquid is less likely to occur falls as drop from ceiling portion and is mixed into the situation for the melten glass for being wound in sleeve.
In such a configuration, it is preferred that the refractory body for forming ceiling portion contains more than 30% α oxygen based on quality %
Change aluminium.
If as described above, forming the refractory body in ceiling portion based on quality % containing more than 50% βAl2O3, can make
The composition that melten glass volatilizes is not easy to react with refractory body.On the other hand, in the refractory body of such composition,
Mechanical strength is relatively low when being used as the constituent material in ceiling portion, worries the avalanche in ceiling portion.Then, it is further preferred that structure
Into ceiling portion refractory body in addition to the βAl2O3 containing more than 50% based on quality %, also contain 30% based on quality %
Alpha-aluminium oxide above.If such composition, then it can suppress the reaction of the volatile ingredient and refractory body of melten glass, and
Mechanical strength can further be improved.
In such a configuration, it is preferred that the manufacture device of glass article possesses feed appliance, and the feed appliance is in working chamber
It is interior that there is flow export, and will be supplied from the melten glass that flow export flows out to sleeve, up it is configured with across flow export up and down
Ceiling portion, and it is configured with sleeve in lower section.
So, in the case of the foreign matter of liquid is generated, foreign matter also can be because of deadweight and along inclined ceiling portion
Flowed from the base end side of sleeve towards front, thus foreign matter is removed by the top of the flow export from feed appliance.Thereby, it is possible to keep away
Exempt to occur that foreign matter is fallen from ceiling portion as drop, foreign matter is mixed into from the shape in the melten glass of the flow export of feed appliance outflow
Condition.As a result, it can further improve the quality of the glass article produced.
Utility model effect
According to the utility model, by the sleeve that is rotated with the posture being inclined relative to horizontal come from melten glass into
During shape glass article, it is possible to increase the heat insulating ability of melten glass and the quality of glass article.
Brief description of the drawings
Fig. 1 is the longitudinal cross-sectional side view for the manufacture device for showing the glass article involved by embodiment of the present utility model.
Fig. 2 is the vertical profile front view for showing the A-A sections in Fig. 1.
Fig. 3 is the vertical profile front view for showing the B-B sections in Fig. 1.
Fig. 4 is the longitudinal cross-sectional side view for enlargedly showing the C portion in Fig. 1.
Description of reference numerals:
The manufacture device of 1 glass article;
2 sleeves;
2a leading sections;
3 working chambers;
5 electric heaters;
6 feed appliances;
6a flow exports;
9 ceiling portions;
At the top of 9a;
9b rakes;
91 part ceilings;
91x parts ceiling;
G melten glass;
PG tubular glass.
Embodiment
Hereinafter, the manufacture device of the glass article involved by embodiment of the present utility model is said referring to the drawings
It is bright.It should be noted that in embodiments described below, the situation of tubular glass is manufactured exemplified as glass article.
As shown in Figure 1 and Figure 2, the glass article involved by embodiment of the present utility model manufacture device 1 (with
Under, brief note makees manufacture device 1) it is configured to, the melten glass G of sleeve 2 will be wound in from the leading section of the sleeve 2 using danner process
2a is pulled out and melten glass G is configured into tubular glass PG simultaneously.
Manufacture device 1 possesses as main inscape:Cylindric sleeve 2, it is to be inclined relative to horizontal
Posture rotation;Working chamber 3, it is in inner side containing sleeve 2;Confined space 4, it is formed in the outside of working chamber 3;As heating
The electric heater 5 of mechanism, it is configured in confined space 4 and working chamber 3 is heated from outside;Feed appliance 6, it is from configuration
In the flow export 6a in working chamber 3 melten glass G is supplied to sleeve 2;And Muffle furnace 7, it surrounds above-mentioned structure using wall portion 7a
They are contained in inside into key element.
Sleeve 2 links with rotary shaft 8, and the rotary shaft 8 is around the axis 8a rotations being inclined relative to horizontal.Thus, sleeve 2
It can be rotated with the state synchronous with rotary shaft 8 around axis 8a.Supply to the melten glass G of the sleeve 2 in rotation to be wound in
The state of the sleeve 2 is gradually conveyed from base end part 2b sides towards leading section 2a sides.
In sleeve 2 and rotary shaft 8, the direction that is extended respectively along axis 8a (following, to be denoted as axial direction) formed with
Through hole, gas (such as compressed air) can be made to be circulated in the through hole.The through hole of sleeve 2 and the insertion of rotary shaft 8
Hole connects, and gas flows into the through hole of sleeve 2 from base end part 2b sides after the through hole by rotary shaft 8.Afterwards, gas exists
After through hole by sleeve 2, flow out from leading section 2a sides and sprayed towards melten glass G.Utilize the gas being ejected
Pressure, in the melten glass G pulled out from sleeve 2 the space that is internally formed, melten glass G is formed as cylindric, thus shapes
Go out tubular glass PG.
Here, in the present embodiment, manufacture device 1 is configured to shape tubular glass PG as glass article, but simultaneously
It is not limited to this.As modified embodiment of the present embodiment, manufacture device 1 can also be configured to shape bar-shaped as glass article
Glass.In this case, by stopping the injection of above-mentioned gas, tubular glass PG can be replaced and shape bar-shaped glass.
Working chamber 3 possesses:Ceiling portion 9, it covers from above sleeve 2, and is formed by refractory body;With main part 10, its with
Support ceiling portion 9 from below from the state of side and lower section cover sleeve 2.Drawn as both the ceiling portion 9 and main part 10
Separate working chamber 3 and confined space 4.The indoor temperature of working chamber 3 is determined by temperature sensor 11.The edge of temperature sensor 11
The axially arranged of sleeve 2 has multiple (being in the present embodiment two).It should be noted that form the fire resisting in ceiling portion 9
Thing alpha-aluminium oxide containing more than 50% βAl2O3 and more than 30% based on quality %.
Copy the posture of sleeve 2 and take the posture being inclined relative to horizontal in ceiling portion 9.The ceiling portion 9 has:Top
9a, it is in the top of sleeve 2 along the axially extending of sleeve 2;With rake 9b, it is towards the side side of sleeve 2 and from top
9a is tilted downwards.Rake 9b is formed as the slope being inclined at an angle.
Axial direction of the ceiling portion 9 along sleeve 2 is divided into multiple (being in the present embodiment five) part ceilings 91.Respectively
Part ceiling 91 is formed as forming integrative-structure thing of the refractory body in the absence of seam of the part ceiling 91.Some ceilings 91
In melten glass G flow direction most upstream side configure part ceiling 91x have it is different from other parts ceiling 91
Structure.
In other parts ceiling 91, there is a pair of angled portion 9b, 9b across top 9a, on the other hand, such as Fig. 3 institutes
Show, part ceiling 91x only has the unilateral rake in a pair of angled portion 9b, 9b.Part ceiling 91x covers from above feeding
The flow export 6a of device 6.Thus, in a manner of across flow export 6a up and down, part ceiling 91x is up configured with, and in lower section
It is configured with sleeve 2.
Here, the angle of a pair of angled portion 9b, 9b open-angle is preferably set in the range of 90~150 °.Because
In the case where the angle of open-angle is bigger than the angle in above-mentioned scope, in the composition that melten glass G is volatilized with forming room
When the refractory body at top 9 reacts and generates the foreign matter of liquid, it is difficult to by along the foreign matter that rake 9b flows to sleeve 2
The guiding of side side, foreign matter falls possible as drop, is mixed into the melten glass G for being wound in sleeve 2.In addition also as,
In the case where the angle of open-angle is smaller than the angle in above-mentioned scope, it is possible to be difficult to assemble ceiling portion 9 by refractory body.
As shown in figure 4, adjacent part ceiling 91,91 turns into intermeshing at the linking part 92 for linking them each other
State.In adjacent two parts ceiling 91,91, configure the base end part 2b sides of sleeve 2 part ceiling 91 partly from
Part ceiling 91 of the lower section supporting configuration in leading section 2a sides.It should be noted that part ceiling 91 and part ceiling 91x it
Between, two parts ceiling 91,91x also turn into the state of engagement in the same way.
As shown in Figure 1 and Figure 2, main part 10 is supported from below by supporting member 12 and support 7aa, the supporting structure
Part 12 is mutual between the main part 10 and the wall portion 7a's of Muffle furnace 7, and the support 7aa is arranged at the wall of Muffle furnace 7
Portion 7a.In addition, main part 10 be divided on melten glass G flow direction configuration upstream side and temperature it is of a relatively high
High-temperature portion 10a and configuration are in downstream and the relatively low low temperature portion 10b of temperature, along high-temperature portion 10a and low temperature portion 10b
Boundary be configured with supporting member 12.
Confined space 4 is formed between the wall portion 7a of Muffle furnace 7 and working chamber 3, closed by both.In the confined space 4
Gas (for example, air) heated by electric heater 5.Also, the gas after heat tracing adds from outside to working chamber 3
Heat, it is heated so as to be wound in the melten glass G of sleeve 2.
Electric heater 5 is the bar-shaped ceramic heaters such as carbonization silicon systems heater, molybdenum disilicides heater, based on temperature
The temperature in working chamber 3 that sensor 11 is determined controls the output of the electric heater 5.The electric heater 5 configure into
Two sides of shape room 3 and lower section.The electric heater 5 in two sides is configured to be symmetrically arranged on the basis of working chamber 3.Configuration
Electric heater 5 in lower section is separately positioned on high-temperature portion 10a sides and low temperature portion 10b sides across supporting member 12.
The melten glass G generated in the glass melting kiln for omitting diagram is transported in working chamber 3 by feed appliance 6.Such as Fig. 3
Shown, the feed appliance 6 is set in a manner of on the main part 10 for being positioned in working chamber 3.
As shown in figure 1, Muffle furnace 7 wall portion 7a formed with:First hole portion 7ab, it is used to make from the leading section of sleeve 2
The tubular glass PG that 2a is pulled out passes through;With the second hole portion 7ac, it is used to supply to pass through with the rotary shaft 8 that sleeve 2 links.
Hereinafter, the main function to the manufacture device 1 of above-mentioned glass article, effect illustrate.
According to above-mentioned manufacture device 1, the posture in ceiling portion 9 is copied the posture of sleeve 2 and is inclined relative to horizontal, because
This can not only be such that ceiling portion 9 is approached with being wound in the melten glass G of sleeve 2 in the base end part 2b sides of sleeve 2, also can be preceding
End 2a sides make ceiling portion 9 be approached with being wound in the melten glass G of sleeve 2.As a result, even in the leading section 2a of sleeve 2
Also easily melten glass G is heated side, it is possible to increase melten glass G heat insulating ability.
In addition, the refractory body even in the composition that melten glass G is volatilized and composition ceiling portion 9 reacts and generates liquid
In the case of the foreign matter of state, base end part 2b sides that foreign matter also can be because of deadweight and along inclined ceiling portion 9 from sleeve 2 are towards front end
Portion 2a sides are flowed, and thus foreign matter is removed from the top of sleeve 2.Thereby, it is possible to avoid generation foreign matter from being used as drop from ceiling portion 9
And fall and be mixed into the situation for the melten glass G for being wound in sleeve 2.The result is that, it is possible to increase the tubular glass PG produced
Quality.
Here, the manufacture device of the glass article involved by the utility model is not limited to say in the above-described embodiment
Bright scheme.For example, it is also possible to be, by form the refractory body in ceiling portion based on quality % containing more than 50% βAl2O3 with
And more than 30% alpha-aluminium oxide as condition, ceiling portion is formed by flat tabular component.
Claims (7)
1. a kind of manufacture device of glass article, it possesses:Cylindric sleeve, it is revolved with the posture being inclined relative to horizontal
Turn;Working chamber, it includes covering from above the ceiling portion formed by refractory body of the sleeve, and the sleeve is housed in inner side;With
And heating arrangements, it is heated from outside to the working chamber,
The manufacture device of the glass article will be wound in the melten glass of the sleeve and be pulled out from the leading section of the sleeve and same
When the melten glass is configured to glass article,
The manufacture device of the glass article is characterised by,
The posture in the ceiling portion is copied the posture of the sleeve and is inclined relative to horizontal.
2. the manufacture device of glass article according to claim 1, it is characterised in that
The ceiling portion has:Top, it is in the top of the sleeve along the axially extending of the sleeve;And rake, its court
Tilted to the side side of the sleeve from the top down side.
3. the manufacture device of glass article according to claim 1 or 2, it is characterised in that
Axial direction of the ceiling portion along the sleeve is divided into some ceilings, and each several part ceiling is formed as described
The integrative-structure thing of seam is not present in refractory body.
4. the manufacture device of glass article according to claim 3, it is characterised in that
The adjacent part ceiling is linked with intermeshing state each other.
5. the manufacture device of glass article according to claim 1 or 2, it is characterised in that
The refractory body in the ceiling portion is formed based on quality % containing more than 50% βAl2O3.
6. the manufacture device of glass article according to claim 5, it is characterised in that
The refractory body in the ceiling portion is formed based on quality % containing more than 30% alpha-aluminium oxide.
7. the manufacture device of glass article according to claim 1 or 2, it is characterised in that
The manufacture device of the glass article possesses feed appliance, and the feed appliance has a flow export in the working chamber, and will be from
The melten glass of flow export outflow supplies to the sleeve,
The ceiling portion is up configured with across the flow export up and down, and the sleeve is configured with lower section.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016161831A JP2018030733A (en) | 2016-08-22 | 2016-08-22 | Apparatus and method for manufacturing glass article |
JP2016-161831 | 2016-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207159090U true CN207159090U (en) | 2018-03-30 |
Family
ID=61304597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720946372.2U Expired - Fee Related CN207159090U (en) | 2016-08-22 | 2017-07-31 | The manufacture device of glass article |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2018030733A (en) |
CN (1) | CN207159090U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2023029007A (en) * | 2021-08-20 | 2023-03-03 | 日本電気硝子株式会社 | Heating furnace and method for manufacturing glass product |
-
2016
- 2016-08-22 JP JP2016161831A patent/JP2018030733A/en active Pending
-
2017
- 2017-07-31 CN CN201720946372.2U patent/CN207159090U/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2018030733A (en) | 2018-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105202912A (en) | Gas roller way kiln | |
CN207159090U (en) | The manufacture device of glass article | |
CN104567356A (en) | Gas-electric hybrid roller kiln furnace | |
CN104121591B (en) | A kind of efficient energy-saving incinerator | |
CN204787776U (en) | Enamel fritting furnace | |
CN205897871U (en) | Vacuum furnace heating system | |
JP2009234873A (en) | Manufacturing apparatus for glass tube or glass rod | |
CN203794774U (en) | High-strength low-density closed-pore hollow glass microsphere sphere-forming furnace | |
CN104496168A (en) | Electric combined melting furnace for producing basalt continuous fibers | |
CN204400803U (en) | For the production of the electrical bond smelting furnace of basalt continuous fiber | |
CN102747202A (en) | Biomass annealing furnace | |
CN206952172U (en) | A kind of tungsten powder reducing furnace | |
CN204461047U (en) | A kind of pneumoelectric mixing roller kilns kiln | |
CN104807326B (en) | A kind of sintering ignition furnace adapting to charge level fluctuation and using method thereof | |
CN204346098U (en) | Energy-saving living beings melt aluminium stove | |
CN107062895A (en) | Energy-conserving and environment-protective de-waxing kiln and its de-waxing technique | |
CN206438025U (en) | A kind of environmental protection and energy saving glass melting furnace | |
CN112041277B (en) | Method for manufacturing glass article | |
CN105318719B (en) | Underbody formula roaster and application method | |
CN105674737B (en) | A kind of dual chamber aluminium alloy melting furnace | |
CN207584815U (en) | A kind of novel firebreak | |
CN205537149U (en) | Sintering electronic component's binder removal and heating element structure of sintering combination stove | |
CN205209266U (en) | A open hearth is smelted to heat accumulation formula for reclaimed copper | |
CN212870736U (en) | Light-burning kiln | |
EP3027991A2 (en) | A radiating heating module for continuous-cycle firing kilns of ceramic products |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 |
|
CF01 | Termination of patent right due to non-payment of annual fee |