CN206583297U - A kind of ceramic kiln with the adjustable wicket that radiates - Google Patents
A kind of ceramic kiln with the adjustable wicket that radiates Download PDFInfo
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- CN206583297U CN206583297U CN201720207759.6U CN201720207759U CN206583297U CN 206583297 U CN206583297 U CN 206583297U CN 201720207759 U CN201720207759 U CN 201720207759U CN 206583297 U CN206583297 U CN 206583297U
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Abstract
The utility model is related to a kind of ceramic kiln with the adjustable wicket that radiates, and belongs to ceramic Preparation equipment technical field.Burning kiln of the present utility model has adjustable heat sinking function, it is made up of two layers translucent radiating control layer and wicket heat-insulation layer, most inner side is the radiating control layer with higher clarity, and the second layer is radiating control layer, for adjusting the heat of kiln inner structure under high-temperature condition to kiln external radiation.Outermost layer is wicket heat-insulation layer, is complete opaque material, mainly plays insulation effect.Keep wicket to close in temperature-fall period to control the heat loss through radiation at wicket by controlling the translucence of wicket simultaneously and then be controlled temperature-fall period in kiln.In temperature-fall period, because wicket is still in closed mode, oxygen-containing air can be avoided to enter in kiln and cause atmosphere uncontrollable.The temperature control in temperature-fall period can be separated with control climate by the utility model, it is to avoid temperature and the uncontrollable problem of atmosphere in existing temperature reduction technology.
Description
Technical field
The utility model is related to a kind of ceramic kiln with the adjustable wicket that radiates, and belongs to ceramic Preparation equipment technology neck
Domain.
Background technology
Two important factors that porcelain quality is influenceed during ceramic sintering be temperature in sintering process in kiln and
Atmosphere.Need to build different kiln atmospheres for ceramic sintering at different temperature during ceramic firing.Since people recognize
Know after the influence of kiln temperature and atmosphere to porcelain quality mutual just constantly to temperature during ceramic sintering and atmosphere
With carrying out research and discovery, but these work are had focused largely in kiln temperature uphill process, are specifically to concentrate on kiln temperature
From 950 DEG C or so to this section of process for burning till the highest temperature (1200 DEG C -1350 DEG C), this is the silicate used by current people
Series ceramic raw material starts near 950 DEG C caused by the characteristic of thawing.Red and Lang Hong rough flambes of such as holding a memorial ceremony for are needed in kiln temperature
Reach after 980 DEG C and kiln atmosphere be converted into strongly reducing atmosphere, and cease raining or snowing blue or green glaze of blue glaze, shadow etc. then only need to be after inversion temperature by gas
Atmosphere is transformed into weak reducing environment, and too strong reduction atmosphere is unfavorable for the formation of glaze colours on the contrary.
Accumulated by long-term practice, how people in ceramic firing temperature-rise period for control kiln temperature and atmosphere
Grasp rich experience, but not have temperature-rise period so deep for the research of temperature-fall period.During ceramic sintering
Temperature-fall period mainly after heating process terminates carry out, and the temperature of temperature-fall period and atmosphere change for porcelain quality come
Say it is equally vital, be last link of porcelain base generator process.The cooling means generally used at present are to rise
Wicket is opened certain distance by warm technique after terminating, and cold air is entered in kiln and then is reached the purpose of quick reduction kiln temperature.It is logical
Kiln temperature can quickly be reduced by crossing the method for opening wicket, but the speed of cooling is not controlled by operating personnel, simultaneously
A large amount of oxygen-containing airs can be made to enter in kiln, and acutely change kiln atmosphere, cause kiln atmosphere equally uncontrollable.Just because of at present
Kiln temperature-fall period is that temperature and atmosphere are uncontrollable, and utilization of the people to temperature-fall period is also seldom.Come currently with cooling
The process for making porcelain produce controllable variations only has crystallization glaze handicraft.In crystalline glaze production technology, satiety is made by fast cooling
The glaze crystallization of sum, then by insulating process crystalline glaze is grown up.Kiln in temperature-fall period is equally existed in crystallization glaze handicraft
The interior uncontrollable problem of temperature and atmosphere, and crystallization glaze porcelain of fine qualities at present is very rare, and again with without excessive gas
Based on the oxidation glaze of atmosphere control.
Utility model content
The purpose of this utility model is to propose a kind of ceramic kiln with the adjustable wicket that radiates, and changes existing furnace
The structure of stove, by the way that wicket to be divided into the radiating control layer with different thermal conduction characteristics (including heat conduction and radiant heat transfer) and is protected
Warm layer, so as to meet the cooling requirements in the thermal requirements and temperature-fall period in temperature-rise period simultaneously.
The utility model proposes the ceramic kiln with the adjustable wicket of radiating, including kiln body and wicket, wicket is placed in kiln
First, the upper and lower cavity in described kiln body is respectively to burn till room and reduction room to body, burns till room and reduction room by bulkhead through-hole
Connection；Burn till interior and be provided with resistance heating body and refractory slab support, resistance heating body is arranged along the inwall for burning till room, base substrate to be burnt till
It is placed on refractory slab support, burns till ceiling portion provided with exhaust passage, and capacity is controlled provided with valve；Described reduction room
Interior be provided with charcoal frame, charcoal frame places faggot and charcoal, and the bottom of charcoal frame is provided with reduction chamber heater, and reduction room bottom is logical provided with First air
Road, reduction room side, which is provided with secondary air channel, First air passage and secondary air channel, is respectively equipped with valve, and intake is carried out
Independent control；What described wicket included top burns till compartment kiln door and the reduction compartment kiln door of bottom, it is described burn till compartment kiln door by
It is interior to be made up of respectively radiating control layer, radiating control layer and wicket heat-insulation layer to outer, the week of radiating control layer and radiating control layer
Hot floater guide block is leaked in side provided with wicket, and described reduction compartment kiln door is located at the outside for throwing bavin hole being connected with reduction room.
The utility model proposes the ceramic kiln with the adjustable wicket of radiating, its advantage is：
1st, the heat dissipating layer in the wicket structure has different thermal conduction characteristics, more specifically, from inside to outside radiating control
The heat radiation transmitance (i.e. material therefor transparency) of preparative layer is in reduction trend, and outermost layer is complete opaque material, main to rise
Insulation effect.Alternative wicket outermost layer insulation material includes but is not limited to the insulation materials such as alumina fibre, mullite, internal layer
Radiating control layer material with different transparencies includes but is not limited to pure quartz glass, is doped to translucent high temperature glass
The materials such as glass, high purity quartz frosted glass.
In view of the heat radiation that electric kiln relies primarily on heater strip is heated to kiln inner structure, therefore radiation control is to kiln
The control of interior temperature is quite important, but should be noted that application of the present utility model is not limited to electrical kiln, is equally applicable to gas kiln and bavin
Kiln.The translucence that the utility model increases wicket structure by keeping wicket to close in temperature-fall period simultaneously (is reduced and radiated
The key-course number of plies) so as to increase the heat loss through radiation of wicket, by controlling the translucence of wicket structure to control spoke at wicket
Penetrate the speed of radiating and then process is declined to kiln temperature and be controlled.In above-mentioned temperature-fall period, because wicket is still in pass
Closed state, thus can avoid oxygen-containing air enter caused in kiln atmosphere it is uncontrollable (for the kiln of firing atmosphere can be controlled, can
Realize the control of kiln atmosphere in temperature-fall period).The temperature control in temperature-fall period and control climate are divided by above method
From, it is to avoid temperature and the uncontrollable problem of atmosphere in existing temperature reduction technology.
Further when needing to build uneven temperature environment in firing process, it can be controlled being radiated in wicket
The opacity of preparative layer carries out localized design, so as to reduce temperatures at localized regions using heat radiation principle, and then is different zones
Build specific low temperature environment.
Brief description of the drawings
Fig. 1 be the utility model proposes the ceramic kiln with the adjustable wicket of radiating structural representation.
In Fig. 1,1 is to burn till room, and 2 be reduction room, and 3 be kiln body, and 4 be bulkhead through-hole, and 5 be resistance heating body, and 6 be refractory slab branch
Frame, 7 be base substrate to be burnt till, and 8 be radiating control layer, and 9 be radiating control layer, and 10 be wicket heat-insulation layer, and 11 be that wicket leaks hot floater guide block,
12 be exhaust passage, and 13 be reduction compartment kiln door, and 14 be to throw bavin hole, and 15 be charcoal frame, and 16 be reduction chamber heater, and 17 be faggot and charcoal, 18
It is First air passage, 19 be secondary air channel.
Embodiment
The utility model proposes the ceramic kiln with the adjustable wicket of radiating, its structure is as shown in figure 1, including kiln body 3
And wicket, first wicket be placed in kiln body 3.Upper and lower cavity in kiln body 3 is respectively to burn till room 1 and reduction room 2, burns till the He of room 1
Reduction room 2 is connected by bulkhead through-hole 4.Burn till and resistance heating body 5 and refractory slab support 6 are provided with room 1, resistance heating body 5 is along burning till
The inwall arrangement of room 1, base substrate 7 to be burnt till is placed on refractory slab support 6, is burnt till the top of room 1 and is provided with exhaust passage 12, and provided with valve
Capacity is controlled.Reduce to be provided with charcoal frame 15, charcoal frame in room 2 and place faggot and charcoal 17, the bottom of charcoal frame 15 is provided with reduction room
Heater 16, the bottom of reduction room 2 is provided with First air passage 18, and the reduction side of room 2 is provided with secondary air channel 19, First air passage
18 and secondary air channel 19 on be respectively equipped with valve, intake is independently controlled.Wicket burns till compartment kiln door including top
With the reduction compartment kiln door 13 of bottom, burn till compartment kiln door and protected respectively by radiating control layer 8, radiating control layer 9 and wicket from inside to outside
Warm layer 10 is constituted, and hot floater guide block 11 is leaked in the periphery of radiating control layer 8 and radiating control layer 9 provided with wicket.Reduction compartment kiln door 13 is located at
The outside for throwing bavin hole 14 being connected with reduction room 2.
Because the heat radiation that ceramic kiln relies primarily on electric heating body is heated to sintered body in kiln, therefore radiation control pair
Electrical kiln heating and cooling process is most important.Embodiment of the present utility model includes but is not limited to answering in the controllable electrical kiln of the atmosphere
With can be equally used for the improvement to common electrical kiln, gas kiln and wood kiln etc..
Below in conjunction with accompanying drawing, the operation principle and the course of work of the utility model ceramic kiln is discussed in detail：
As shown in figure 1, the kiln body 3 of the controllable ceramic kiln of atmosphere involved by the utility model is heat-insulated by ceramic alumina fiber
Plate is constituted, and kiln body, which is divided into, burns till room 1 and reduction room 2.It is base substrate 7 to be burnt till through being sintered at high temperature into the working region of porcelain to burn till room 1,
Reduction room 2 can produce different atmosphere by the burning of the materials such as faggot and charcoal in various degree, so by bulkhead through-hole 4 pairs burn till room 1
Interior atmosphere is controlled.With reference to the heating for burning till resistance heating body 5 in room 1, the temperature needed for ceramic sintering process can be completed
Degree and atmosphere system.The different burning degrees for reducing faggot and charcoal in room 2 can be by adjusting First air passage 18 and secondary air channel 19
Interior AIR Proportional is adjusted.
Compartment kiln door is burnt till by two layers translucent radiating control layer and wicket heat-insulation layer, most inner side with adjustable radiating
For the radiating control layer 8 with higher clarity, this layer of Radiation Transmittance is higher, mainly by the material structure such as pure quartz glass
Into it is to allow kiln internal heat to be dispersed into quickly by radiation outside kiln that it, which is acted on, such as kiln temperature reduction heat loss through radiation ability drop
Situation that is low or needing fast cooling.The second layer is radiating control layer 9, and the layer has compared with low transparency, can be by being doped to not
High temp glass or high purity quartz frosted glass with transparency are constituted, and are mainly used to kiln inner structure spoke to outside kiln under regulation high-temperature condition
The heat penetrated.It is to be noted that translucent radiating control layer of the present utility model is not limited only to two layers, wicket also can be by multilayer
Translucent radiating control layer is constituted, and by using the radiating control layer of the different numbers of plies, and then controls the entirety of wicket translucent
Degree, so as to carry out continuous control to heat loss through radiation at wicket so that the control to cooling capacity is more accurate.Kiln shown in Fig. 1
Door outermost layer is wicket heat-insulation layer 10, and the layer is made up of ceramic alumina fiber thermal insulation board, main function be in furnace heating-up and
Holding stage needs to be needed the layer open according to technique to the heat insulation function of kiln in temperature-fall period.Because wicket is translucent
Situations such as leakage heat occurs at radiating control layer, wicket edge is provided with the hot floater guide block 11 of leakage.It is to be noted that each part of wicket
Need to consider thermal expansion of each several part in heating process during assembling, thus need leaving space surplus.
During firing process, base substrate 7 to be burnt till is put into and burns till room 1 and close wicket first.According to heating process
The power of resistance heating body in room 1 and reduction room 2 is burnt till in rise so that kiln temperature rises.When reaching 980 DEG C nearby,
Reduction interior is put into charcoal, while adjusting the ratio of First air and Secondary Air to adjust the environment that kiln burns till interior, to reach
Burn till demand.When reaching maximum sintering temperature and carrying out initially entering temperature-fall period after heat preservation method, resistance heating is reduced first
The power of body, and opening wicket heat-insulation layer 10 is needed according to rate of temperature fall, utilize the translucent spy of wicket remaining radiating control layer
Property, by radiating reduction kiln temperature.According to the atmosphere system needs of firing process while cooling, continuation is led in the process
(because wicket is not opened completely during this, kiln, can still in closed state for the environment that burns till crossed in reduction room regulation kiln
Continuation is controlled to kiln atmosphere).When temperature continues to reduce, continue to open radiating control layer 9 as needed, continue to increase
Heat loss through radiation at wicket.Needed in crystallization glaze handicraft in the technique that then fast cooling is incubated, reduction heating first
Device power, and wicket heat-insulation layer 10 and radiating control layer 9 are opened as needed, after temperature reaches target temperature, close successively
Radiating control layer 9 and wicket heat-insulation layer 10, and electric heating body power is adjusted, it is incubated, equally can be right during being somebody's turn to do
Firing atmosphere is controlled in kiln.
Radiating control layer 9 can be spliced by different transparency materials as needed, and then can be controllable in temperature-fall period
Temperature environment uneven in kiln is built on ground, so as to be adapted to specific burning process.
Therefore, by it is of the present utility model using the temperature-fall period of kiln can not only be carried out it is relatively reliable and from
By control, while can also be controlled while cooling to firing atmosphere in kiln, it is to avoid by beating in temperature-fall period
Open wicket and cause temperature and the uncontrollable problem of atmosphere.It is uneven in the construction kiln that utilization invention simultaneously can also be artificially
Temperature environment, is adapted to special burning process.
Claims (1)
1. a kind of ceramic kiln with the adjustable wicket that radiates, it is characterised in that including kiln body and wicket, wicket is placed in kiln body
First, the upper and lower cavity in described kiln body is respectively to burn till room and reduction room, burns till room and reduction room is connected by bulkhead through-hole
It is logical；Burn till interior and be provided with resistance heating body and refractory slab support, resistance heating body is put along the inwall arrangement for burning till room, base substrate to be burnt till
Exhaust passage is provided with refractory slab support, burning till ceiling portion, and capacity is controlled provided with valve；Described reduction is indoor
Provided with charcoal frame, faggot and charcoal is placed on charcoal frame, the bottom of charcoal frame is provided with reduction chamber heater, and reduction room bottom is provided with First air passage,
Reduction room side, which is provided with secondary air channel, First air passage and secondary air channel, is respectively equipped with valve, intake is carried out only
Vertical control；Described wicket burns till compartment kiln door and the reduction compartment kiln door of bottom including top, and described burns till compartment kiln door by interior
It is made up of respectively radiating control layer, radiating control layer and wicket heat-insulation layer to outer, the periphery of radiating control layer and radiating control layer
Hot floater guide block is leaked provided with wicket, described reduction compartment kiln door is located at the outside for throwing bavin hole being connected with reduction room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207759.6U CN206583297U (en) | 2017-03-03 | 2017-03-03 | A kind of ceramic kiln with the adjustable wicket that radiates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207759.6U CN206583297U (en) | 2017-03-03 | 2017-03-03 | A kind of ceramic kiln with the adjustable wicket that radiates |
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| CN206583297U true CN206583297U (en) | 2017-10-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918226A (en) * | 2017-03-03 | 2017-07-04 | 清华大学 | A kind of ceramic kiln with the adjustable wicket that radiates |
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- 2017-03-03 CN CN201720207759.6U patent/CN206583297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918226A (en) * | 2017-03-03 | 2017-07-04 | 清华大学 | A kind of ceramic kiln with the adjustable wicket that radiates |
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