CN106885469A - A kind of ceramic kiln with cooling control structure - Google Patents
A kind of ceramic kiln with cooling control structure Download PDFInfo
- Publication number
- CN106885469A CN106885469A CN201710125220.0A CN201710125220A CN106885469A CN 106885469 A CN106885469 A CN 106885469A CN 201710125220 A CN201710125220 A CN 201710125220A CN 106885469 A CN106885469 A CN 106885469A
- Authority
- CN
- China
- Prior art keywords
- top cover
- burner hearth
- refractory slab
- kiln
- ceramic
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0041—Chamber type furnaces specially adapted for burning bricks or pottery
- F27B17/005—Chamber type furnaces specially adapted for burning bricks or pottery with cylindrical chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0041—Chamber type furnaces specially adapted for burning bricks or pottery
- F27B17/0075—Heating devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1808—Removable covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1808—Removable covers
- F27D2001/1825—Means for moving the cover
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/03—Charges containing minerals
- F27M2001/035—China
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Furnace Details (AREA)
Abstract
The present invention relates to a kind of ceramic kiln with cooling control structure, belong to ceramic sintering technical field.Including burner hearth, kiln outer wall, liftable top cover, heater, collection cigarette hood, controlled admission line, soaking refractory slab and perforate ventilation refractory slab, heater is arranged in four walls of burner hearth, perforate ventilates refractory slab longitudinal arrangement in burner hearth, base substrate to be burnt till is placed on perforate ventilation refractory slab, soaking refractory slab is positioned at the top of the superiors' base substrate to be burnt till, the bottom of burner hearth is provided with controlled admission line, and the top of burner hearth is provided with liftable top cover, and collection cigarette hood is provided with above top cover.Ceramic kiln of the invention, the controlled reduction of in-furnace temperature, control lifting top cover, the controlled air inlet in bottom and top collection cigarette exhaust is made by the control of amount of radiation and free convection amount, it is ensured that the thermal field of ceramic sintering cooling stage and the uniformity of atmosphere.Ceramic kiln of the invention, with very strong practicality and extremely wide application prospect, can effectively improve Production of Ceramics efficiency and yield rate.
Description
Technical field
The present invention relates to a kind of ceramic kiln with cooling control structure, belong to ceramic sintering technical field.
Background technology
At present it has been recognized that the process for having considerable influence to burning till quality in art ceramics sintering process is kiln
Temperature in stove temperature-rise period is mutually matched relation with furnace atmosphere.Accumulated by long-term practice, people burn for ceramics
How to control kiln temperature and atmosphere also to grasp rich experiences into temperature-rise period, but for temperature-fall period research not
There is temperature-rise period so deep.In traditional concept, temperature and atmosphere have no effect on porcelain quality in temperature-fall period, but actually with
The development of state-of-art, researcher gradually recognizes that the uniformity of atmosphere and thermal field in cooling is also to directly affect glaze
The factor of face color development.Even if this result of study also demonstrates modernization kiln when carrying out sensitive glaze paint and burning till, finished product
Rate is less than 50%, and yields is even more less than 20%.
The process of Temperature fall in heating system rear hearth is closed at present because the presence of insulation material can be slowly
Wicket is opened certain distance, makes cold sky by raising yield, the cooling means for generally using in the industry after heating process terminates
Gas is into kiln and then reaching the quick purpose for reducing kiln temperature.Temperature in kiln can quickly be reduced by the method for opening wicket really
Degree, but initial effective influence scope is also only limitted near fire door opening, and the speed of cooling is not controlled by operating personnel
's.In temperature-fall period simultaneously a large amount of fresh air air can enter in kiln, and acutely change the composition of the atmosphere in fire door region, cause
Overall kiln atmosphere is out of control and has no uniformity and can say.Come out of the stove from current conventional furnaces, the porcelain of door side it is few into
Product occur, and the porcelain glaze paint of other parts is the characteristics of show male and female face, i.e. glaze paint both sides residing component in temperature-fall period
Deviation is very big.
The content of the invention
The purpose of the present invention is to propose to a kind of ceramic kiln with cooling control structure, dropped in ceramic sintering process
Temperature and atmosphere are uncontrollable when warm, and uneven problem, the structure to existing ceramic kiln is improved, by controlling hot spoke
Penetrate and gaseous exchange, so as to ensure that in-furnace temperature can meet default temperature reduction technology, improving the premise of ceramic sintering efficiency
Under, it is effectively increased the thermal field uniformity in temperature-fall period.
It is proposed by the present invention with cooling control structure ceramic kiln, including burner hearth, kiln outer wall, liftable top cover,
Heater, collection cigarette hood, controlled admission line, soaking refractory slab and perforate ventilation refractory slab；Described heater is arranged in burner hearth
Four walls, described perforate ventilates refractory slab longitudinal arrangement in burner hearth, and base substrate to be burnt till is placed on perforate ventilation refractory slab；Described
Soaking refractory slab is positioned at the top of the superiors' base substrate to be burnt till；The bottom of described burner hearth is provided with controlled admission line, burner hearth it is upper
Portion is provided with liftable top cover, and collection cigarette hood is provided with above top cover.
In the above-mentioned ceramic kiln with cooling control structure, described liftable top cover is wedge-shaped top cover, wedge-shaped top cover
Cover on the top of burner hearth, or step top cover.
Ceramic kiln with cooling control structure proposed by the present invention, its advantage is：
1st, the ceramic kiln with cooling control structure of the invention, homogeneous radiation, Yi Jijin are enclosed by surrounding top one
The design of the soaking refractory slab that one step is installed, in solving the door opened temperature-fall period of prior art presence, only fire door opening one
Side reaches the condition of cooling, and interior other regions of stove are too small due to radiation angle, and heat exchange efficiency is low to cause burner hearth inside thermal field pole not
Uniform problem.
2nd, the top lowering or hoisting gear of ceramic kiln of the present invention, can be by programme-control adjustable height, so as to determine opening
Size, the intensity of caloradiance and gaseous exchange just can be effectively controlled by the size of opening.Fire door is opened when solving cooling
The present situation of firer's experience is fully relied on during opening.
3rd, ceramic kiln of the invention, the controlled air inlet in bottom can keep natural convection and the free convection of stabilization
Heat exchange amount in journey.Radiating simultaneously can make burner hearth inside produce the temperature field of upper cold and lower heat above burner hearth, when the temperature difference increases,
Free convection part need not control also increase therewith in convection current, so as to reduce the temperature difference, the whole thermal field of the design has very strong
Self-regulation ability, improves the stability of whole system.Both promote temperature field in furnace to tend to uniform at collective effect.
4th, ceramic kiln of the invention, can realize layering by soaking refractory slab and perforate being mutually combined for refractory slab of ventilating
Secondary temperature-fall period, realizes being fired in same stove the function of heterogeneity glaze.
5th, ceramic kiln of the invention, by the design of top collection cigarette hood, it can be ensured that in firer's operating process not
Can be injured by fire door moving process high temperature gas, security is significantly greatly increased.
Therefore the ceramic kiln with cooling control structure proposed by the present invention, is once changing to existing furnace construction
Enter, with very strong practicality and extremely wide application prospect, Production of Ceramics efficiency and yield rate can be effectively improved, be pottery
Porcelain firing process increases a new control device.
Brief description of the drawings
Fig. 1 is the structural representation of the ceramic kiln with cooling control structure proposed by the present invention.
Fig. 2 is wedge-shaped top cover folding schematic diagram in the ceramic kiln with cooling control structure shown in Fig. 1, in Fig. 2,
A () is that wedge-shaped top cover is in closure state, (b) is that wedge-shaped top cover is in opening.
Fig. 3 is step top cover folding schematic diagram in the ceramic kiln with cooling control structure shown in Fig. 1, in Fig. 3,
C () is that step top cover is in closure state, (d) is that step top cover is in opening.
In Fig. 1-Fig. 3,1 is the burner hearth in ceramic sintering area, and 2 is kiln outer wall, and 3 is wedge-shaped liftable top cover, and 4 is heating
Device, 5 is collection cigarette hood, and 6 is controlled admission line, and 7 is soaking refractory slab, and 8 is perforate ventilation refractory slab, and 9 is step liftable
Top cover.
Specific embodiment
Ceramic kiln with cooling control structure proposed by the present invention, its structure is as shown in figure 1, including burner hearth 1, kiln
Outer wall 2, liftable top cover 3, heater 4, collection cigarette hood 5, controlled admission line 6, soaking refractory slab 7 and perforate ventilation refractory slab 8
On.Heater 4 is arranged in four walls of burner hearth 1, and perforate ventilates the longitudinal arrangement of refractory slab 8 in burner hearth 1, and base substrate to be burnt till is placed in perforate
On ventilation refractory slab 8.Soaking refractory slab 7 is positioned at the top of the superiors' base substrate to be burnt till.The bottom of burner hearth 1 is provided with controlled admission line 6,
The top of burner hearth 1 is provided with liftable top cover 3, and the top of liftable top cover 3 is provided with collection cigarette hood 5.
In the above-mentioned ceramic kiln with cooling control structure, liftable top cover 3 can be wedge-shaped top cover, such as institute in Fig. 2
Show, wedge-shaped top cover is covered on the top of burner hearth, wherein, Fig. 2 (a) is that wedge-shaped top cover is in closure state, and Fig. 2 (b) is wedge-shaped top cover
In opening.Liftable top cover can also be step top cover, as shown in figure 3, wherein Fig. 3 (c) is at step top cover
In closure state, Fig. 3 (d) is that step top cover is in opening.
Below in conjunction with accompanying drawing, structure of the invention is described further, it is pointed out that structure of the invention is not only
It is limited to shown electrical kiln, is equally applicable to traditional wood kiln and gas kiln.Its lifting top cover can be made up of to answer various joint forms
To different cooling conditions.In general, wedge-shaped top cover can meet radiating faster, and stepped ramp type top cover can be more accurately
Keep the uniformity of radiation heat flux.
After the completion of kiln is normally fired, lifting top cover 3 is kept to be located at the state closed, now heater 4 works on, by
Step reduces temperature in burner hearth.After heater 4 is completely closed, slow lifting top cover, as shown in accompanying drawing 2 or accompanying drawing 3.Lifting top cover
Heat passage is formed between 3 and kiln outer wall 2, heat radiation is formed.Bottom inflow 6, and top collection cigarette hood are opened simultaneously
5, form forced convection from bottom to top.So that in-furnace temperature keeps required rate of temperature fall.
With furnace temperature reduction, lifting top cover 3 will also be lifted further, and the air inflow of inlet end 6 also accordingly increases, and continue to tie up
Hold required rate of temperature fall.
By heat radiation, forced convection, the collective effect of free convection, can not only make furnace temperature by required technique it is controlled under
Drop, while good thermal field uniformity and atmosphere evenness can also be kept.
During lifting top cover 3 is opened, it is also possible to keep heater 4 to be in opening and receive making up heat dissipation capacity
The disturbed condition of external environment influence.
Ventilated being applied in combination come the thermal field and atmosphere evenness needed for controlling of refractory slab 8 by soaking refractory slab 7 and perforate.One
As for, soaking refractory slab 7 is located at the superiors so that external radiating surface temperature is consistent；Perforate ventilation refractory slab 8 is located at other layers, protects
The path of the internal free convection of card.
Furnace design of the invention is that top cover lifts open-close ways, and after top cover is substantially higher than furnace roof, can outward winding is carried out
Charging and the work of discharging.And top cover jacking system carries out adjustable height by the combination or other manner of motor leading screw
Control.Burner hearth bottom is designed with inlet duct (such as self-priming valve, blower fan, source of the gas etc.), and the inlet duct is controlled, can
Air inflow size is adjusted on request.Kiln top is designed with external collection cigarette hood, high-temperature gas can be imported into blast pipe
Road.
During normal firing, lifting top cover is in closure state, is carried out by normal burning process.Lower the temperature when ceramic kiln enters
During technique, cooling rate is maintained by way of controlling heater power first, until heater is progressively closed.By institute above
State, kiln continues Temperature fall speed can slow down gradually.Now by drive device lifting step by step top cover, make top cover and kiln top
Certain gap is produced between layer.Because in-furnace temperature is higher, heat radiation can externally be produced by the gap.Simultaneously, bottom
The air inlet in portion can also be opened, and increase heat convection ability in stove.As fire box temperature constantly declines, radiation intensity and free convection
Intensity can all decline, and especially radiation intensity is directly proportional with the biquadratic of temperature, so needing more heat exchanger channels to tie up
Hold rate of temperature fall.Bigger radiation heat transfer area is formed by improving constantly furnace top cover position, and is stepped up inlet air flow
Amount, improves convection heat transfer intensity.This both interaction just can effectively by technique reduction fire box temperature.
In further design, silicon carbide deck sets the uniformity that can also have influence on burner hearth thermal field in stove.Carborundum
Refractory slab is divided into soaking plate and perforate vent board, and soaking plate makes whole radiating surface keeping temperature one using the high heat conductance of carborundum
Cause, and perforate ventilation refractory slab can then make the abundant convection current of furnace atmosphere, increase the temperature homogeneity between inner chamber.
During furnace top cover is opened, collection cigarette hood air draft can also be opened.Particularly hot stage, air outlet temperature compared with
Height, the Cryogenic air that air draft can largely suck environment nearby is mixed, it is ensured that runner internal temperature safety, while also ensureing
The safety of the personnel such as operation firer.
Claims (3)
1. it is a kind of with cooling control structure ceramic kiln, it is characterised in that including burner hearth, kiln outer wall, liftable top cover,
Heater, collection cigarette hood, controlled admission line, soaking refractory slab and perforate ventilation refractory slab；Described heater is arranged in burner hearth
Four walls, described perforate ventilates refractory slab longitudinal arrangement in burner hearth, and base substrate to be burnt till is placed on perforate ventilation refractory slab；Described
Soaking refractory slab is positioned at the top of the superiors' base substrate to be burnt till；The bottom of described burner hearth is provided with controlled admission line, burner hearth it is upper
Portion is provided with liftable top cover, and collection cigarette hood is provided with above top cover.
2. there is the ceramic kiln of cooling control structure such as claim 1, it is characterised in that wherein described liftable top cover is
Wedge-shaped top cover, wedge-shaped top cover is covered on the top of burner hearth.
3. there is the ceramic kiln of cooling control structure such as claim 1, it is characterised in that wherein described liftable top cover is
Step top cover, step top cover is covered on the top of burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710125220.0A CN106885469A (en) | 2017-03-03 | 2017-03-03 | A kind of ceramic kiln with cooling control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710125220.0A CN106885469A (en) | 2017-03-03 | 2017-03-03 | A kind of ceramic kiln with cooling control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106885469A true CN106885469A (en) | 2017-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710125220.0A Pending CN106885469A (en) | 2017-03-03 | 2017-03-03 | A kind of ceramic kiln with cooling control structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN106885469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632553A (en) * | 2018-11-29 | 2019-04-16 | 武汉钢铁有限公司 | The method of rapid survey lump ore hot tearing index |
| US11628048B2 (en) * | 2017-04-12 | 2023-04-18 | Ivoclar Vivadent Ag | Dental treatment device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2287282Y (en) * | 1996-12-25 | 1998-08-05 | 冯伟 | Flaming gas burner |
| JP2000169214A (en) * | 1998-11-28 | 2000-06-20 | Tokyo Gas Co Ltd | Gas ceramic art kiln |
| CN201276581Y (en) * | 2008-10-30 | 2009-07-22 | 杭州鼎盛炉业有限公司 | Strong convection well type spheroidizing furnace |
| CN102798286A (en) * | 2012-08-14 | 2012-11-28 | 郑州磨料磨具磨削研究所 | High temperature sintering resistance furnace |
| CN204097517U (en) * | 2014-10-28 | 2015-01-14 | 丹阳市协昌合金有限公司 | A kind of well vacuum bright annealing oven |
| CN105198196A (en) * | 2015-10-14 | 2015-12-30 | 湖北新华光信息材料有限公司 | Quick automatic cooling unit for annealing furnaces |
| KR20160000756U (en) * | 2016-01-27 | 2016-03-07 | 김현석 | Mealting furnace cover for nonferrous metals |
| CN105546992A (en) * | 2016-02-22 | 2016-05-04 | 浙江尚鼎工业炉有限公司 | Industrial furnace with liftable dust-collecting furnace cover |
| CN105910437A (en) * | 2016-06-03 | 2016-08-31 | 清华大学 | Ceramic firing electric kiln capable of generating firewood burning atmospheres |
| CN206583296U (en) * | 2017-03-03 | 2017-10-24 | 杭州志在材料科技有限公司 | A kind of ceramic kiln with cooling control structure |
-
2017
- 2017-03-03 CN CN201710125220.0A patent/CN106885469A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2287282Y (en) * | 1996-12-25 | 1998-08-05 | 冯伟 | Flaming gas burner |
| JP2000169214A (en) * | 1998-11-28 | 2000-06-20 | Tokyo Gas Co Ltd | Gas ceramic art kiln |
| CN201276581Y (en) * | 2008-10-30 | 2009-07-22 | 杭州鼎盛炉业有限公司 | Strong convection well type spheroidizing furnace |
| CN102798286A (en) * | 2012-08-14 | 2012-11-28 | 郑州磨料磨具磨削研究所 | High temperature sintering resistance furnace |
| CN204097517U (en) * | 2014-10-28 | 2015-01-14 | 丹阳市协昌合金有限公司 | A kind of well vacuum bright annealing oven |
| CN105198196A (en) * | 2015-10-14 | 2015-12-30 | 湖北新华光信息材料有限公司 | Quick automatic cooling unit for annealing furnaces |
| KR20160000756U (en) * | 2016-01-27 | 2016-03-07 | 김현석 | Mealting furnace cover for nonferrous metals |
| CN105546992A (en) * | 2016-02-22 | 2016-05-04 | 浙江尚鼎工业炉有限公司 | Industrial furnace with liftable dust-collecting furnace cover |
| CN105910437A (en) * | 2016-06-03 | 2016-08-31 | 清华大学 | Ceramic firing electric kiln capable of generating firewood burning atmospheres |
| CN206583296U (en) * | 2017-03-03 | 2017-10-24 | 杭州志在材料科技有限公司 | A kind of ceramic kiln with cooling control structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11628048B2 (en) * | 2017-04-12 | 2023-04-18 | Ivoclar Vivadent Ag | Dental treatment device |
| CN109632553A (en) * | 2018-11-29 | 2019-04-16 | 武汉钢铁有限公司 | The method of rapid survey lump ore hot tearing index |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170623 |