CN101639320B - Tunnel kiln of roasting tile and roasting method thereof - Google Patents
Tunnel kiln of roasting tile and roasting method thereof Download PDFInfo
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- CN101639320B CN101639320B CN2009100177265A CN200910017726A CN101639320B CN 101639320 B CN101639320 B CN 101639320B CN 2009100177265 A CN2009100177265 A CN 2009100177265A CN 200910017726 A CN200910017726 A CN 200910017726A CN 101639320 B CN101639320 B CN 101639320B
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Abstract
The invention discloses a tunnel kiln of roasting tile and a roasting method thereof, belonging to the technical field of kilns and roasting. The tunnel kiln comprises a base, a kiln body and a kiln top, wherein the kiln body is provided with a preheating section, a high-temperature roasting section and a cooling section respectively, wherein a lead rail foundation bed is arranged at the bottom part in the kiln body from the preheating section to the cooling section; a lead rail is installed on the lead rail foundation bed; a layer of aluminum silicate fibrofelt is added on the inner walls of the preheating section and the high-temperature roasting section of the kiln body; air inlets which cause hot-air passages to be communicated with the inner of the kiln body cavity are arranged at the bottom of the two side walls of the preheating section, the top end of the part of the preheating section which is near to the high-temperature roasting section is provided with a cool-air inlet which is externally connected with a ventilation pipe consisting of a plugboard and a blower, and the ventilation pipe can directly introduce cool air into the kiln body cavity of the preheating section; the top end at the front part of the cooling section is provided with an air outlet, a ventilation pipe provided with a plugboard and a blower is backwardly connected with the air outlet and can directly introduce hot air at the front part of the cooling section into an air passage of a drying room. The invention has the advantages of accelerating the production schedule and reducing the production cost; and the pass rate of tile production is high, which can be up to 90%.
Description
(1) technical field
The present invention relates to a kind of tunnel cave and method of roasting thereof that bakes tile kilning, belong to kiln and roasting technology field.
(2) background technology
Traditional kiln little earth kilns or annular kilns of firing watt of adopting, there is following defective in these kilns: 1, environmental issue: comprise smog, dust emission, thermal pollution etc. more.2, the wasting of resources: comprise the energy, soil, because the kiln wall of these kilns looses outward, heat-dissipating space is big, and the heat-insulating property of kiln is poor, and heat energy easily scatters and disappears, and causes energy waste; In addition because the more land resource waste that causes is taken up an area of in the scattered distribution of these kilns.3, mechanization degree is lower, is unfavorable for the large-scale production that intensifies, and working strength of workers is big.4, the production time is incured loss through delay in the little restriction loading of kiln in space in the kiln, the operation of unloading dress sign indicating number in kiln and the kiln watt, has perplexed manufacturing schedule, has increased production cost.5, watt production qualification rate is low.At above-mentioned traditional existing defective of firing watt of kiln, tunnel cave on the contrary can solve some problems, the regrettably at present domestic precedent of still not having the tunnel cave that successful large-scale production fires watt, trace it to its cause is because one, by watt structure due to owing to watt be non-regular texture, became uneven, the condition of firing expands when changing and shrinks inequality, distortion easy to crack; Its two, it is too big that the internal combustion of unbaked tile contains coal amount ratio, is two times of homogeneity brick, the interior combustible material of especially being mixed contains volatile ingredient ratio height, material is fine and closely woven, gas discharging does not freely very easily cause unbaked tile dilatancy in sintering procedure; They are three years old, tunnel cave is compared with annular kiln, because it is little that the firing chamber holds the sectional space difference of sintered products, same output its cock off speed both differ one times, the used time of its roasting process has shortened half, so the time of the cooling that heats up is short, drop is big, do not have extraordinary measure, still continue to use the method for annular kiln and go to handle, will inevitably lead to the failure.Number of patent application is 200720159493.9, denomination of invention discloses a kind of tunnel cave of roasting brick and tile for " a kind of roasting brick and tile tunnel cave ", but this tunnel cave real produce to fire watt also have many problems and defective, watt the production qualification rate very low.
More than the production kiln of all watts all do not satisfy from now on country to the requirement of environmental protection aspect, seek the kiln that matches with desulfurization smoke abatement special equipment, watt production and environmental protection to combine be current and urgent need that put up a kiln from now on, so present patent application is for solving the breach of green technology.
(3) summary of the invention
At the defective and the deficiency of prior art, the invention provides a kind of tunnel cave and method of roasting thereof that bakes tile kilning.
The technology of the present invention realizes in the following way.
A kind of tunnel cave that bakes tile kilning, comprise base, kiln body and Yao Ding, the kiln body is respectively equipped with preheating section, high temperature calcination section and cooling section, kiln body cavity inner bottom part mounting guide rail pedestal from preheating section to cooling section, the guide rail base upper mounting rail, the upper end from-inner-to-outer of kiln body is respectively arranged with fire brick layer, fibre felt layer, light-weight insulating brick layer, ashes matter heat-insulation layer and Yao Ding; Kiln body two side is built into by refractory brick; Have hot-flow flue on the bottom, preheating section two side of kiln body, its front end middle and lower part has flue and hot-flow flue is connected; High temperature calcination section has cold air duct on the two side, and the top has coal feeding hole; Two side, cooling section front portion (i.e. the position of close high temperature calcination section) has air inlet on the bottom; Middle and lower part, cooling section rear portion has flue, has waste heat on its two side and carries the air channel and send hot-flow flue, and both separate by the air lock plate; Waste heat carries air channel and flue to be connected, and send the hot-flow flue of hot-flow flue and preheating section to be connected, and it is characterized in that adding the last layer alumina silicate fiber felt on the preheating section of kiln body and high temperature calcination section inwall, to reach heat insulation, insulation and energy-conservation purpose; Be positioned in the bottom, two side of preheating section and be provided with air inlet on the hot-flow flue hot-flow flue is communicated with the kiln body cavity, by being arranged on the air lock control air inlet on the two side and the break-make of hot-flow flue, have the cold wind import at preheating section near the top, position of high temperature calcination section, the external ventilation shaft that has plate and blower fan of cold wind import can directly be incorporated into cold wind in the kiln body cavity of preheating section; The top of cooling section front portion is provided with exhaust outlet, and tape splicing has the ventilation shaft of plate and blower fan can be directly the hot blast of cooling section front portion to be incorporated in the air channel of drying chamber to go behind the exhaust outlet.
The upper end of described kiln body is an arcuation, also can be flat-shaped.
The air inlet longitudinal pitch that is provided with on the described preheating section two side is suitable with kiln car length.
The cold air duct longitudinal pitch that is provided with on the described high temperature calcination section two side is suitable with kiln car length.
Air inlet longitudinal pitch on the described cooling section front part sides wall is suitable with kiln car length.
Have thermotolerant pad on the air lock that is provided with on the described preheating section two side.
The coal feeding hole horizontally set at described high temperature calcination section top is 2-4, evenly is arranged in a row; Coal feeding hole longitudinal pitch between row and row is 1 meter.
Tunnel cave of the present invention is owing to add the last layer alumina silicate fiber felt on the preheating section of kiln body and high temperature calcination section inwall, can reach heat insulation, insulation and energy-conservation purpose; Air inlet is set on the two side of preheating section to be made in hot-flow flue and the kiln body cavity and communicates, on the position of preheating section, have the cold wind import near high temperature calcination section, control the intake of the break-make of air inlet and hot-flow flue with the control hot-flow flue by air lock, cold wind intake by plate and the import of blower fan control cold wind, thereby can reach at preheating section near the unbalanced problem of the unbaked tile in the position of high temperature calcination section burning progress, play press down go up short down, prevent that the top unbaked tile runs off internal combustion, bottom unbaked tile combustion lag too early and the product that causes expands cause useless.Owing to be provided with exhaust outlet on the top of cooling section front portion, can make that the hot gas above the cooling section front portion is taken away, following air inlet advances cold air, what enter this section after high-temperature roasting watt can be forced to fast cooling, has strengthened cooling-down effect, to reduce the frightened watt phenomenon of wind, avoid the craze and transfiguration of tile of finished product, to guarantee the qualification rate of tile of finished product, the hot blast of cooling section front portion is incorporated in the drying chamber through ventilation shaft by blower fan simultaneously and goes, make the drying chamber drying effect strengthen.
A kind of method of roasting of the roasting of tunnel cave as mentioned above tile kilning, step is as follows:
1) unbaked tile piles up and advances car
On kiln car, take and form framework with refractory brick, unbaked tile is close to comes into line laterally upright piling up in framework, the density of framework is per 1 meter and takes and form two rows (watt full-length be two kinds of 385mm and 360mm), after unbaked tile on the kiln car is piled up and is finished, successively kiln car is headed into the rear portion of tunnel cave preheating section along guide rail successively with kiln car pusher, make the full preheating section of kiln car row and enter the high temperature calcination section front end; The stand of kiln car is that the air inlet place of joint between the two adjacent kiln cars and preheating section overlaps and gets final product;
2) igniting of tunnel cave
Tunnel preheating section of kiln wicket is closed, reverse the pushing in the kiln of brick kitchen range car is close to the kiln car of arranging full preheating section along guide rail from the car direction that goes out of tunnel cave, car direction one end that goes out at the brick kitchen range car is filled in the gap between brick kitchen range car and the kiln wall tight with alumina silicate fiber felt, light brick kitchen range then, transport and coal-fired keep the brick kitchen range burning by manually in big mouth of kitchen range, throwing coal by going out the car direction; Near bottom first row's unbaked tile on first kiln car in row's coal feeding hole observation kiln of brick kitchen range, rubescent when unbaked tile, temperature should be 550-700 ℃ above kiln top; First row's coal feeding hole is rubescent bottom the unbaked tile to the 8th row's coal feeding hole observation kiln of back nearby when brick kitchen range, be that temperature is when being 550-700 ℃, stop gradually by throwing coal in the big mouth of kitchen range this moment, change by coal feeding hole above the kiln top and throw coal near brick kitchen range, brick kitchen range stopped to throw coal when the unbaked tile bottom was rubescent in the coal feeding hole observation kiln after the 8th row, all changed by the coal feeding hole above the kiln top and threw coal; Remove the tight alumina silicate fiber felt of plug in the gap between brick kitchen range car and the kiln wall this moment, progressively advance car brick kitchen range car with kiln car and enter into the high-temperature roasting intersegmental part, progressively finish the igniting of tunnel cave, be 12-24 hour the duration of ignition, with the normal roasting stage that changes tunnel cave over to;
3) watt roasting
During the normal roasting of tunnel cave, the maximum temperature of distinguishing in the high temperature calcination section in the kiln remains on 1000-1100 ℃, gradually to the downward trend in gradient of tunnel cave two ends, the preheating section rear portion is 550-700 ℃ near the temperature at the anterior position near high temperature calcination section of the position of high temperature calcination section and cooling section, the stand of kiln car is placed on joint between two adjacent kiln cars and the cold air duct on the high temperature calcination section two side overlaps and get final product; Whenever, spend 40-60 minute, the kiln car length of wagon of advancing, the opposite joint and the cold air duct on the high temperature calcination section two side that make the stand of kiln car be in the workshop all the time overlap part; Kiln car enters cooling section after the high temperature calcination section roasting;
4) watt cooling kiln discharge
Enter watt temperature drift on the kiln car of cooling section, temperature descends difficult, but forced cooling adopted down and served the mode of taking out this moment, promptly by the exhaust outlet on top hot gas was drained, following air inlet send cold air to lower the temperature to it, because kiln car enters and is discontinuous, promptly every 40-60 minute, the kiln car length of wagon of advancing, till outside kiln car is moved out of tunnel cave, watt fire and finish.
Air inlet of the present invention is used as the inlet of gaseous fuel when tunnel cave is made fuel with gases such as coal gas or natural gases.
The tunnel cave that the present invention bakes tile kilning has been realized the mechanization in enormous quantities and the continuity of tile kilning, is beneficial to intensification large-scale production, and working strength of workers reduces; By tunnel cave and hot-flow flue and chimney, make the discharging of smog, dust reduce; Saved land resource, solved owing to little earth kiln or the scattered distribution of annular kiln kiln, taken up an area of the more land resource waste problem that causes; Solved because little earth kiln or annular kiln kiln wall loose outward, and heat-dissipating space is big, and the heat-insulating property of kiln is poor, heat energy easily scatters and disappears and causes the problem of energy waste; The outer operating space of kiln becomes big, make loading of kiln, kiln discharge to carry out under the spacious canopy outside kiln, avoided the adverse circumstances that high temperature, cooling fan disorderly blow in the firing chamber, and a plurality of vehicle can be operated simultaneously, labour intensity diminishes, the volume of goods loaded and unloaded is big, and the temperature of unbaked tile and frame brick is tending towards natural temperature differential, and tile of finished product no longer occurs scalding one's hand and accidentally drops and break the phenomenon that smashes into pieces, eliminated the bottleneck of production line, save the production time, accelerated manufacturing schedule, reduced production cost; Watt the qualified raising of production, watt qualification rate can reach 90%.
(4) description of drawings
Fig. 1 is the structural representation that the present invention bakes the tunnel cave of tile kilning, and Fig. 2 is an A-A cross-sectional view among Fig. 1, and Fig. 3 is a B-B cross-sectional view among Fig. 1, and Fig. 4 is a C-C cross-sectional view among Fig. 1.
Wherein: 1, base, 2, the kiln body, 3, Yao Ding, 4, ashes matter heat-insulation layer, 5, the light-weight insulating brick layer, 6, fibre felt layer, 7, fire brick layer, 8, guide rail, 9, hot-flow flue, 10, guide rail base, 14, air inlet, 16, coal feeding hole, 17, kiln car chassis, 18, kiln vehicle surface, 19, air inlet, 20, exhaust outlet, 21, cold air duct, 22, the air channel type of tamper evidence, 23, flue, 24, cold wind import, 25, alumina silicate fiber felt, 26, air lock, 27, light-weight insulating brick layer, 28, refractory brick, 29, plane alumina silicate fibre carpet veneer, 30, handle.
(5) specific embodiment
The present invention will be further described below by embodiment, but be not limited thereto.
Embodiment 1:
A kind of tunnel cave that bakes tile kilning, shown in Fig. 1-4, comprise base 1, kiln body 2 and kiln top 3, kiln body 2 is respectively equipped with preheating section E, high temperature calcination section F and cooling section G, kiln body cavity inner bottom part mounting guide rail pedestal 10 from preheating section E to cooling section G, guide rail base 10 upper mounting rails 8, the upper end from-inner-to-outer of kiln body 2 are respectively arranged with fire brick layer 7, fibre felt layer 6, light-weight insulating brick layer 5, ashes matter heat-insulation layer 4 and kiln top 3; Kiln body 2 two sides are built into by refractory brick; Have hot-flow flue 9 on the bottom, preheating section E two side of kiln body 2, its front end middle and lower part has flue 23 and hot-flow flue 9 is connected; High temperature calcination section F has cold air duct 21 on the two side, and the top has coal feeding hole 16; Cooling section G front portion (i.e. the position of close high temperature calcination section) has air inlet 19 on the bottom, two side; Middle and lower part, cooling section G rear portion has flue 23, has waste heat on its two side and carries the air channel and send hot-flow flue, and both separate by the air lock plate; Waste heat carries air channel and flue 23 to be connected, and send the hot-flow flue 9 of hot-flow flue and preheating section E to be connected, and it is characterized in that adding last layer alumina silicate fiber felt 25 on the preheating section E of kiln body 2 and high temperature calcination section F inwall, to reach heat insulation, insulation and energy-conservation purpose; Be positioned in the bottom, two side of preheating section E and be provided with air inlet 14 on the hot-flow flue 9 hot-flow flue 9 is communicated with kiln body 2 chambeies, by being arranged on the air lock 26 control air inlets 14 on the two side and the break-make of hot-flow flue 9, have cold wind import 24 at preheating section E near the top, position of high temperature calcination section F, the cold wind import 24 external ventilation shafts that have plate and blower fan can directly be incorporated into cold wind in the kiln body cavity of preheating section E; The top of cooling section G front portion is provided with exhaust outlet 20, and exhaust outlet 20 back tape splicings have the ventilation shaft of plate and blower fan can be directly the hot blast of cooling section G front portion to be incorporated in the air channel of drying chamber to go.
The upper end of described kiln body 2 is an arcuation.
Air inlet 19 longitudinal pitches on the described cooling section G front part sides wall are suitable with kiln car length.
Have thermotolerant pad on the air lock 26 that is provided with on the described preheating section E two side.
Described air inlet is used as the inlet of gaseous fuel when tunnel cave is made fuel with gases such as coal gas or natural gases.
Embodiment 2:
A kind of method of roasting of the roasting of tunnel cave as mentioned above tile kilning, step is as follows:
1) unbaked tile piles up and advances car
On kiln car, take and form framework with refractory brick, unbaked tile is close to comes into line laterally upright piling up in framework, the density of framework is per 1 meter and takes and form two rows (watt full-length be two kinds of 385mm and 360mm), after unbaked tile on the kiln car is piled up and is finished, successively kiln car is headed into the rear portion of tunnel cave preheating section along guide rail successively with kiln car pusher, make the full preheating section of kiln car row and enter the high temperature calcination section front end; The stand of kiln car is that the air inlet place of joint between the two adjacent kiln cars and preheating section overlaps and gets final product;
2) igniting of tunnel cave
Tunnel preheating section of kiln wicket is closed, reverse the pushing in the kiln of brick kitchen range car is close to the kiln car of arranging full preheating section along guide rail from the car direction that goes out of tunnel cave, car direction one end that goes out at the brick kitchen range car is filled in the gap between brick kitchen range car and the kiln wall tight with alumina silicate fiber felt, light brick kitchen range then, transport and coal-fired keep the brick kitchen range burning by manually in big mouth of kitchen range, throwing coal by going out the car direction; Near bottom first row's unbaked tile on first kiln car in row's coal feeding hole observation kiln of brick kitchen range, rubescent when unbaked tile, temperature is about 600 ℃ above kiln top; First row's coal feeding hole is rubescent bottom the unbaked tile to the 8th row's coal feeding hole observation kiln of back nearby when brick kitchen range, be that temperature is when being 600 ℃, stop gradually by throwing coal in the big mouth of kitchen range this moment, change by coal feeding hole above the kiln top and throw coal near brick kitchen range, brick kitchen range stopped to throw coal when the unbaked tile bottom was rubescent in the coal feeding hole observation kiln after the 8th row, all changed by the coal feeding hole above the kiln top and threw coal; Remove the tight alumina silicate fiber felt of plug in the gap between brick kitchen range car and the kiln wall this moment, progressively advance car brick kitchen range car with kiln car and enter into the high-temperature roasting intersegmental part, progressively finish the igniting of tunnel cave, be about 24 hours the duration of ignition, with the normal roasting stage that changes tunnel cave over to;
3) watt roasting
During the normal roasting of tunnel cave, the maximum temperature of distinguishing in the high temperature calcination section in the kiln remains on 1050 ℃, gradually to the downward trend in gradient of tunnel cave two ends, the preheating section rear portion is 600 ℃ near the temperature at the anterior position near high temperature calcination section of the position of high temperature calcination section and cooling section, the stand of kiln car is placed on joint between two adjacent kiln cars and the cold air duct on the high temperature calcination section two side overlaps and get final product; About 60 minutes of every mistake, the kiln car length of wagon of advancing, the opposite joint and the cold air duct on the high temperature calcination section two side that make the stand of kiln car be in the workshop all the time overlap part; Kiln car enters cooling section after the high temperature calcination section roasting;
4) watt cooling kiln discharge
Enter watt temperature drift on the kiln car of cooling section, temperature descends difficult, but forced cooling adopted down and served the mode of taking out this moment, promptly by the exhaust outlet on top hot gas was drained, following air inlet send cold air to lower the temperature to it, because kiln car enters and is discontinuous, promptly every about 60 minutes, the kiln car length of wagon of advancing, till outside kiln car is moved out of tunnel cave, watt fire and finish.
Embodiment 3:
A kind of method of roasting of the roasting of tunnel cave as mentioned above tile kilning, step is as follows:
1) unbaked tile piles up and advances car
On kiln car, take and form framework with refractory brick, unbaked tile is close to comes into line laterally upright piling up in framework, the density of framework is per 1 meter and takes and form two rows (watt full-length be two kinds of 385mm and 360mm), after unbaked tile on the kiln car is piled up and is finished, successively kiln car is headed into the rear portion of tunnel cave preheating section along guide rail successively with kiln car pusher, make the full preheating section of kiln car row and enter the high temperature calcination section front end; The stand of kiln car is that the air inlet place of joint between the two adjacent kiln cars and preheating section overlaps and gets final product;
2) igniting of tunnel cave
Tunnel preheating section of kiln wicket is closed, reverse the pushing in the kiln of brick kitchen range car is close to the kiln car of arranging full preheating section along guide rail from the car direction that goes out of tunnel cave, car direction one end that goes out at the brick kitchen range car is filled in the gap between brick kitchen range car and the kiln wall tight with alumina silicate fiber felt, light brick kitchen range then, transport and coal-fired keep the brick kitchen range burning by manually in big mouth of kitchen range, throwing coal by going out the car direction; Near bottom first row's unbaked tile on first kiln car in row's coal feeding hole observation kiln of brick kitchen range, rubescent when unbaked tile, temperature should be 650 ℃ above kiln top; First row's coal feeding hole is rubescent bottom the unbaked tile to the 8th row's coal feeding hole observation kiln of back nearby when brick kitchen range, be that temperature is when being 650 ℃, stop gradually by throwing coal in the big mouth of kitchen range this moment, change by coal feeding hole above the kiln top and throw coal near brick kitchen range, brick kitchen range stopped to throw coal when the unbaked tile bottom was rubescent in the coal feeding hole observation kiln after the 8th row, all changed by the coal feeding hole above the kiln top and threw coal; Remove the tight alumina silicate fiber felt of plug in the gap between brick kitchen range car and the kiln wall this moment, progressively advances car brick kitchen range car with kiln car and enter into the high-temperature roasting intersegmental part, progressively finishes the igniting of tunnel cave, and be 22 hours the duration of ignition, with the normal roasting stage that changes tunnel cave over to;
3) watt roasting
During the normal roasting of tunnel cave, the maximum temperature of distinguishing in the high temperature calcination section in the kiln remains near 1100 ℃, gradually to the downward trend in gradient of tunnel cave two ends, the preheating section rear portion is 650 ℃ near the temperature at the anterior position near high temperature calcination section of the position of high temperature calcination section and cooling section, the stand of kiln car is placed on joint between two adjacent kiln cars and the cold air duct on the high temperature calcination section two side overlaps and get final product; About 50 minutes of every mistake, the kiln car length of wagon of advancing, the opposite joint and the cold air duct on the high temperature calcination section two side that make the stand of kiln car be in the workshop all the time overlap part; Kiln car enters cooling section after the high temperature calcination section roasting;
4) watt cooling kiln discharge
Enter watt temperature drift on the kiln car of cooling section, temperature descends difficult, but forced cooling adopted down and served the mode of taking out this moment, promptly by the exhaust outlet on top hot gas was drained, following air inlet send cold air to lower the temperature to it, because kiln car enters and is discontinuous, promptly every about 50 minutes, the kiln car length of wagon of advancing, till outside kiln car is moved out of tunnel cave, watt fire and finish.
Claims (8)
1. tunnel cave that bakes tile kilning, comprise base, kiln body and Yao Ding, the kiln body is respectively equipped with preheating section, high temperature calcination section and cooling section, kiln body cavity inner bottom part mounting guide rail pedestal from preheating section to cooling section, the guide rail base upper mounting rail, the upper end from-inner-to-outer of kiln body is respectively arranged with fire brick layer, fibre felt layer, light-weight insulating brick layer, ashes matter heat-insulation layer and Yao Ding; Kiln body two side is built into by refractory brick; Have hot-flow flue on the bottom, preheating section two side of kiln body, preheating section front end middle and lower part has flue and hot-flow flue is connected; High temperature calcination section has cold air duct on the two side, and the top has coal feeding hole; Cooling section front part sides wall has air inlet on the bottom; Middle and lower part, cooling section rear portion has flue, has waste heat on the cooling section two side and carries the air channel and send hot-flow flue, and both separate by the air lock plate; Waste heat carries the flue of air channel and cooling section to be connected, and send the hot-flow flue of hot-flow flue and preheating section to be connected, and it is characterized in that adding the last layer alumina silicate fiber felt on the preheating section of kiln body and high temperature calcination section inwall, to reach heat insulation, insulation and energy-conservation purpose; Be positioned in the bottom, two side of preheating section and be provided with air inlet on the hot-flow flue hot-flow flue is communicated with the kiln body cavity, by being arranged on the air lock control air inlet on the two side and the break-make of hot-flow flue, have the cold wind import at preheating section near the top, position of high temperature calcination section, the external ventilation shaft that has plate and blower fan of cold wind import can directly be incorporated into cold wind in the kiln body cavity of preheating section; The top of cooling section front portion is provided with exhaust outlet, and tape splicing has the ventilation shaft of plate and blower fan can be directly the hot blast of cooling section front portion to be incorporated in the air channel of drying chamber to go behind the exhaust outlet.
2. a kind of tunnel cave that bakes tile kilning as claimed in claim 1, the upper end that it is characterized in that described kiln body is an arcuation, perhaps is flat-shaped.
3. a kind of tunnel cave that bakes tile kilning as claimed in claim 1 is characterized in that the air inlet longitudinal pitch that is provided with on the described preheating section two side is suitable with kiln car length.
4. a kind of tunnel cave that bakes tile kilning as claimed in claim 1 is characterized in that the cold air duct longitudinal pitch that is provided with on the described high temperature calcination section two side is suitable with kiln car length.
5. a kind of tunnel cave that bakes tile kilning as claimed in claim 1 has thermotolerant pad on the air lock that it is characterized in that being provided with on the described preheating section two side.
6. a kind of tunnel cave that bakes tile kilning as claimed in claim 1 is characterized in that the throwing at described high temperature calcination section top
Coal mouth horizontally set is 2-4, evenly is arranged in a row; Coal feeding hole longitudinal pitch between row and row is 1 meter.
7. a kind of tunnel cave that bakes tile kilning as claimed in claim 1 is characterized in that described air inlet is used as the inlet of gaseous fuel when tunnel cave is made fuel with coal gas or natural gas gas.
8. method of roasting of tunnel cave roasting tile kilning according to claim 1, step is as follows:
1) unbaked tile piles up and advances car
On kiln car, take and form framework with refractory brick, unbaked tile is close to comes into line laterally upright piling up in framework, the density of framework is per 1 meter and takes and form two rows, after unbaked tile on the kiln car is piled up and is finished, successively kiln car is headed into the rear portion of tunnel cave preheating section along guide rail successively with kiln car pusher, make the full preheating section of kiln car row and enter the high temperature calcination section front end; The stand of kiln car is that the air inlet place of joint between the two adjacent kiln cars and preheating section overlaps and gets final product;
2) igniting of tunnel cave
Tunnel preheating section of kiln wicket is closed, reverse the pushing in the kiln of brick kitchen range car is close to the kiln car of arranging full preheating section along guide rail from the car direction that goes out of tunnel cave, car direction one end that goes out at the brick kitchen range car is filled in the gap between brick kitchen range car and the kiln wall tight with alumina silicate fiber felt, light brick kitchen range then, transport and coal-fired keep the brick kitchen range burning by manually in big mouth of kitchen range, throwing coal by going out the car direction; Near bottom first row's unbaked tile on first kiln car in row's coal feeding hole observation kiln of brick kitchen range, rubescent when unbaked tile, temperature should be 550-700 ℃ above kiln top; First row's coal feeding hole is rubescent bottom the unbaked tile to the 8th row's coal feeding hole observation kiln of back nearby when brick kitchen range, be that temperature is when being 550-700 ℃, stop gradually by throwing coal in the big mouth of kitchen range this moment, change by coal feeding hole above the kiln top and throw coal near brick kitchen range, brick kitchen range stopped to throw coal when the unbaked tile bottom was rubescent in the coal feeding hole observation kiln after the 8th row, all changed by the coal feeding hole above the kiln top and threw coal; Remove the tight alumina silicate fiber felt of plug in the gap between brick kitchen range car and the kiln wall this moment, the brick kitchen range car enters into the high-temperature roasting intersegmental part when progressively advancing car with kiln car, progressively finish the igniting of tunnel cave, be 12-24 hour the duration of ignition, with the normal roasting stage that changes tunnel cave over to;
3) watt roasting
During the normal roasting of tunnel cave, the maximum temperature of distinguishing in the high temperature calcination section in the kiln remains on 1000-1100 ℃, gradually to the downward trend in gradient of tunnel cave two ends, the preheating section rear portion is 550-700 ℃ near the temperature at the anterior position near high temperature calcination section of the position of high temperature calcination section and cooling section, the stand of kiln car is placed on joint between two adjacent kiln cars and the cold air duct on the high temperature calcination section two side overlaps and get final product; Whenever, spend 40-60 minute, the kiln car length of wagon of advancing, the opposite joint and the cold air duct on the high temperature calcination section two side that make the stand of kiln car be in the workshop all the time overlap part; Kiln car enters cooling section after the high temperature calcination section roasting;
4) watt cooling kiln discharge
Enter watt temperature drift on the kiln car of cooling section, temperature descends difficult, forced cooling adopted down and served the mode of taking out this moment, promptly by the exhaust outlet on top hot gas was drained, following air inlet send cold air to lower the temperature to it, because kiln car enters and is discontinuous, promptly every 40-60 minute, the kiln car length of wagon of advancing, till outside kiln car is moved out of tunnel cave, watt fire and finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100177265A CN101639320B (en) | 2009-08-21 | 2009-08-21 | Tunnel kiln of roasting tile and roasting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100177265A CN101639320B (en) | 2009-08-21 | 2009-08-21 | Tunnel kiln of roasting tile and roasting method thereof |
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| CN101639320A CN101639320A (en) | 2010-02-03 |
| CN101639320B true CN101639320B (en) | 2010-12-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102853655A (en) * | 2012-06-20 | 2013-01-02 | 张崇云 | Wall brick roasting tunnel kiln and roasting method |
| CN102778126B (en) * | 2012-07-27 | 2015-03-11 | 山东恒祥机械有限公司 | One-time palletizing-burning tunnel kiln |
| CN104591697B (en) * | 2014-12-23 | 2016-06-22 | 山西鑫杰陶艺有限公司 | The preparation method of sand device |
| CN106048207A (en) * | 2016-08-01 | 2016-10-26 | 宜兴市鑫锤锻压设备有限公司 | Kiln for forging steel |
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