CN105650673A - High-temperature air and high-temperature low-oxygen smoke mixed combustion-supporting type full-automatic control ceramic kiln - Google Patents
High-temperature air and high-temperature low-oxygen smoke mixed combustion-supporting type full-automatic control ceramic kiln Download PDFInfo
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- CN105650673A CN105650673A CN201610146071.1A CN201610146071A CN105650673A CN 105650673 A CN105650673 A CN 105650673A CN 201610146071 A CN201610146071 A CN 201610146071A CN 105650673 A CN105650673 A CN 105650673A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/06—Liquid fuels
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
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Abstract
The invention discloses a high-temperature air and high-temperature low-oxygen smoke mixed combustion-supporting type full-automatic control ceramic kiln which comprises a combustion-supporting gas main pipe, a fuel gas main pipe and a kiln body. The kiln body is divided into a cooling section, a combustion section and a preheating section in the longitudinal direction. The combustion section comprises at least three control subareas, and each control subarea comprises a thermocouple, at least five nozzles and a control box. Each control box is provided with a box body, a first mixer contained in the box body, a combustion-supporting gas control branch pipe penetrating one side wall of the box body to be connected between the first mixer and the combustion-supporting gas main pipe, a fuel gas control branch pipe penetrating the other side wall of the box body to be connected between the first mixer and the fuel gas main pipe, and a mixed gas branch pipe penetrating one end wall of the box body from the first mixer to extend to the outside of the box body. First electric valves, first thermometers and first flowmeters are arranged on the combustion-supporting gas control branch pipes. Second electric valves and second flowmeters are arranged on the fuel gas control branch pipes. Each mixed gas branch pipe is connected with the at least five nozzles in the corresponding subarea.
Description
Technical field
The present invention relates to a kind of ceramic kiln, particularly to a kind of Automatic Control ceramic kiln.
Background technology
At present, along with the market demand of pottery is increasing, ceramic kiln is also built longer and longer, cross section is also more and more wide, but kiln temperature is also increasingly difficult to control to simultaneously, and the firing defects such as such as deformation, aberration etc. caused owing to kiln temperature is uneven is also on the rise. Additionally, ceramic kiln is often using combustion gas as thermal source, during burning, whether the proportioning of combustion gas and combustion-supporting gas rationally directly influences the size of energy consumption. When combustion-supporting tolerance is very few, incomplete combustion, contains the material of a large amount of contaminated environment, also results in the waste of the energy simultaneously in imperfect combustion product; And combustion-supporting tolerance excessive time, excessive sky combustion-supporting gas takes away again substantial amounts of heat when discharging, and increases the loss of heat. Therefore it provides a kind of can uniform kiln temperature the Automatic Control ceramic kiln of energy consumption and pollution can be reduced simultaneously become the focus paid close attention in the industry.
A kind of combustion air being applied to ceramic kiln and natural gas linear proportion control system as disclosed in Chinese patent 201110339112.6, it includes mixing air pipeline and the natural gas line that control unit, hot-air duct, cold-air duct and outlet are all connected with the combustor of ceramic kiln, the port of export of described cold-air duct and hot-air duct is all connected with mixing air pipeline, and cold-air duct is provided with electrodynamic valve; Mixing air pipeline is provided with booster fan and temperature measuring equipment; Described combustor is provided with temperature element, and described electrodynamic valve, booster fan, temperature measuring equipment and temperature element are all connected with control unit, is connected with each other by pressure regulator valve between described natural gas line and mixing air pipeline. But, there is following shortcoming or deficiency in this combustion air being applied to ceramic kiln and natural gas linear proportion control system: (1), have the various sizes of caliber ratio to control between mixing air and natural gas merely with that arrange mixing air pipeline and natural gas line, when temperature changes, it is difficult to accurately realize mixing air and reach optimal air-fuel ratio with natural gas; (2), adopting the air pressure that pressure regulator valve controls mixing air and natural gas to reach to control kiln temperature uniformly, it is poor that it controls effect, the DeGrain of conversion between pressure and temperature, and response speed is slower.It is thus impossible to the variations in temperature controlled timely and effectively in kiln.
And for example on a kind of ceramic kiln disclosed in Chinese patent 201320216754.1, sectional regulates the energy saver of steam oxygen content, ceramic kiln is high temperature firing zone kiln, including one to the air intake house steward introducing combustion air in kiln, in each section of kiln that in-furnace temperature is different, it is respectively equipped with each independence and all parallel with air intake house steward air intake to be in charge of, every section of air intake is in charge of between air intake house steward, equal interval is connected with the automatic valve that can be automatically adjusted intake size and the hand-operated valve of manually adjustable intake size. Said structure is in charge of and automatic valve, hand-operated valve owing to being provided with air intake, the combustion air size of each section of kiln can be regulated by automatic or manual, namely the flexible steam oxygen content of each section of kiln, when making steam discharge out of the furnace, reason oxygen content is too high and take away part coal gas, thus realizing good energy-saving effect. But, on this ceramic kiln, sectional regulates the energy saver of steam oxygen content and there is following shortcoming or deficiency: (1), only can be automatically adjusted combustion-supporting air quantity size, can not simultaneously regulating gas amount size, thus combustion gas and air can not be made to reach optimal air-fuel ratio; (2), it is automatically adjusted combustion-supporting air quantity size by monitoring oxygen content in air, system can not be automatically adjusted when combustion air temperature reduces; (3), the adjustment of combustion-supporting air quantity can not keep Tong Bu or servo-actuated with the adjustment of gas quantity, it is possible to causes that cold wind is blown in kiln, affects efficiency of combustion and even affects the quality of ceramic product.
For another example a kind of stagewise furnace combustion gas disclosed in Chinese patent 201410171369.9 and air coordinated control system, it includes kiln body, air header, gas header pipe, the first thermocouple and at least three control partition, and each control partition includes: air arm; It is arranged at the air electrodynamic valve connected on pipeline and effusion meter that air props up between house steward; It is connected at least three air inlet duct between air arm and air intake; Combustion gas arm; It is arranged at the gas electric valve connected on pipeline and effusion meter that combustion gas is propped up between house steward; It is connected at least three gas inlet pipe between combustion gas arm and fuel gas inlet; For measuring the second thermocouple of the zone temperature in kiln body. Wherein, control centre couples, according to the air themperature data in the air header of gas flow data and the acquisition of the first thermocouple, the aperture controlling air electrodynamic valve so that the combustion gas quality data on flows that the MAF data that mass air flow sensor obtains and gas meter obtain reaches the optimal air-fuel ratio of systemic presupposition. But, there is following shortcoming or deficiency in this stagewise furnace combustion gas and air coordinated control system: (1), be only capable of using individually the hot-air after carrying out heat exchange as combustion-supporting gas, without making full use of substantial amounts of high-temperature low-oxygen flue gas that ceramic kiln the discharges combustion-supporting gas as auxiliary; (2), the first thermocouple be only capable of the air themperature data measured in air header, and the air themperature data in each air arm that there is the temperature difference with air header cannot be measured, there is error when being adjusted air-fuel ratio; (3), needing to arrange substantial amounts of air inlet duct and gas inlet pipe is arranged in kiln body, assemble loaded down with trivial details, structure is complicated.
Therefore it provides the Automatic Control ceramic kiln of a kind of energy-saving and emission-reduction becomes urgent problem in the industry.
Summary of the invention
It is an object of the invention to provide one and can make full use of high-temperature flue gas heat, and can control pottery kiln temperature in time, the high temperature air that all can realize optimal air-fuel ratio under any load increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln.
To achieve these goals, the invention provides a kind of high temperature air and increase temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, the kiln body of burner hearth it is provided with including inside, help gas header pipe and gas header pipe, kiln body is divided into cooling section along the longitudinal direction, burning zone and preheating section, burning zone includes at least three control partition being sequentially arranged along the longitudinal direction of kiln body, high temperature air increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln and includes corresponding to each control partition: thermocouple, zone temperature data in its burning zone that to be arranged on the kiln body sidewall of each control partition corresponding to obtain each control partition, at least five nozzle, at least five nozzle pitch is arranged on the kiln body sidewall of each control partition, and control chamber, control chamber is provided with casing, it is placed in the first blender in casing, it is connected to the first blender through casing one sidewall and helps the combustion-supporting gas control arm gas header pipe, it is connected to the combustion gas the first blender and gas header pipe through another sidewall of casing and controls arm, and extend to the gaseous mixture arm outside casing from the first blender through casing end wall, wherein, it is positioned at the combustion-supporting gas control arm outside casing and is provided with the first electrodynamic valve and the first thermometer, the combustion-supporting gas control arm being positioned at box house is provided with first-class gauge, it is positioned at the control arm of the combustion gas outside casing and is provided with the second electrodynamic valve and second gauge, it is positioned at the gaseous mixture arm outside casing to be connected with at least five nozzle respectively to spray to stove chamber inner combustion heat release combustion gas and combustion-supporting gas, wherein, the first electrodynamic valve of each control partition and the second electrodynamic valve all independently control so that the aperture of the first electrodynamic valve changes along with the aperture of the second electrodynamic valve according to the default air-fuel ratio that control centre sets and changes.
Selectively, the first blender is provided with and helps fuel gas inlet, fuel gas inlet and mixed gas outlet, helps fuel gas inlet to be connected with combustion-supporting gas control arm, and fuel gas inlet controls arm with combustion gas and is connected, and mixed gas outlet is connected with gaseous mixture arm.
Selectively, temperature in the kiln body that each control partition is corresponding can be set to different from each other, temperature in the burning zone that such as at least three control partition is corresponding is set as gradually rising from contiguous cooling section one laterally adjacent to preheating section side, or is set to the temperature temperature higher than control partition, both sides of central authorities control partition. Certainly, according to concrete technology requirement, the temperature in the kiln body that each control partition is corresponding can arbitrarily set.
Preferably, high temperature air increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln and includes the control partition of five or more than five.
Preferably, the end of at least five nozzle is connected with the tube wall of blender arm.
Selectively, also include for helping gas header pipe to provide the second blender mixing combustion-supporting gas, second blender is provided with heat smoke entrance, hot air inlet and empty cigarette mixed gas outlet, heat smoke entrance is connected with the flue of preheating section by smoke backflow pipeline, hot air inlet connects pipeline by hot-air and is connected with the cooling air outlet of cooling section, and empty cigarette mixed gas outlet is connected with helping gas header pipe by pipeline.
Preferably, preheating section is provided with exhanst gas outlet, flue is connected between exhanst gas outlet and chimney, smoke backflow pipeline is connected to flue sidewall, wherein, the flue gas accounting for amount of flue gas emission about 15��30% (volume) in flue is back to the second blender via smoke backflow pipeline.
Preferably, cooling section is provided with cooling air inlet and cooling air outlet, and the cold air from blower fan becomes hot-air after cooling air inlet enters cooling section cooling pottery, and hot-air connects pipeline from cooling air outlet via hot-air and is delivered to the second blender. Selectively, the hot-air accounting for cooling air total amount about 50%��100% is delivered to the second blender, and all the other hot-airs are delivered to waste heat boiler for adding hot water.
Selectively, the volume ratio of the hot-air and heat smoke that enter the second blender in the unit interval is set to 2:1��1:2, such as 1:1.
Preferably, temperature is the heat smoke of the oxygen content 13%��18% (volume) of 350��450 degrees Celsius and the hot-air of oxygen content 21% that temperature is 250��350 degrees Celsius connects pipeline via smoke backflow pipeline and hot-air respectively and enters the combustion-supporting gas of the oxygen content 15%��20% that formation temperature in the second blender is 300��400 degrees Celsius.
It is highly preferred that the hot-air of the heat smoke of the oxygen content 15% that temperature is 400 degrees Celsius and oxygen content 21% that temperature is 300 degrees Celsius connects pipeline via smoke backflow pipeline and hot-air respectively enters the combustion-supporting gas of the oxygen content 18% that formation temperature in the second blender is 350 degrees Celsius.
Selectively, at first-class gauge at the combustion-supporting gas control arm of box house and help and be provided with oxygen meter between fuel gas inlet to obtain the oxygen content data in combustion-supporting gas.
Selectively, between the first thermometer and first-class gauge, the first air-introduced machine it is provided with to input combustion-supporting gas in the first blender at the combustion-supporting gas control arm of box house.
Selectively, smoke backflow pipeline is provided with the second blower fan to input heat smoke in the second blender, and hot-air connects pipeline and is provided with the 3rd blower fan to input hot-air in the second blender.
Selectively, default air-fuel ratio is chemically correct fuel, and chemically correct fuel is set to that the combustion-supporting temperature data obtained along with the first thermometer raise and become big. This is because the more high then density of the temperature of combustion-supporting gas is more little, thus the oxygen content in the combustion-supporting gas of specific discharge is more low. Assuming that gas quantity is constant, then need to increase combustion-supporting tolerance to ensure combustion-supporting effect.
Selectively, default air-fuel ratio is the product of chemically correct fuel and correction coefficient, chemically correct fuel is set to that the combustion-supporting temperature data obtained along with the first thermometer raise and become big, and correction coefficient is set to that the oxygen content data obtained along with oxygen meter becomes big and reduces.
Selectively, the second electrodynamic valve is set to when the zone temperature data that thermocouple obtains are higher than design temperature range limit and gradually turns aperture down, until the zone temperature data that thermocouple obtains are in design temperature scope.
Selectively, when second electrodynamic valve is set to the difference of the lower limit of the zone temperature data when thermocouple obtains and design temperature scope more than 200 degrees Celsius, aperture is adjusted to maximum and gradually turns aperture down when the difference of zone temperature data and the lower limit of design temperature scope is less than 100 degrees Celsius, until the zone temperature data that thermocouple obtains are in design temperature scope.
Selectively, by arranging thermocouple in each control partition, it is the signal of telecommunication by its temperature transition, this signal is sent to central controller (control centre), central controller controls the aperture of the second corresponding electrodynamic valve of each control partition according to its temperature signal, by second gauge, the flow parameter of combustion gas is sent to central controller, simultaneously by first-class gauge, first thermometer and oxygen meter are by the flow parameter of combustion-supporting gas, temperature parameter and oxygen content parameter are sent to central controller, central controller individually controls the aperture of the first electrodynamic valve of each control partition according to the default air-fuel ratio set, thus realizing the optimum proportioning of combustion gas and combustion-supporting gas.
The invention has the beneficial effects as follows: (1), simple and compact for structure, it is simple to combine installation rapidly; (2) heat smoke making full use of ceramic kiln discharge and the hot-air formed by heat exchange are as the combustion-supporting gas of mixing, and not only Efficient Cycle make use of the heat smoke of ceramic kiln, and decreases the discharge capacity of flue gas, it is achieved energy-conserving and environment-protective; (3), when the control partition temperature in stove is close to predetermined temperature, just the aperture of the second electrodynamic valve can automatically be turned down, gas flow is reduced, according to the reading of second gauge, the reading of oxygen meter, the reading of thermometer and air-fuel ratio, just can determine that the aperture of the first electrodynamic valve, automatically control the flow mixing combustion-supporting gas, realize stepless speed regulation, automatically control, it is ensured that under any load or operating mode, all can reach the air-fuel ratio of the best; (4), individually the temperature of each control partition can be carried out more precise control, not only realize effective utilization of the energy, and ensure that the quality of ceramic product.
Accompanying drawing explanation
Fig. 1 is the organigram that the high temperature air of the present invention increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln.
Fig. 2 is the organigram of the control chamber of the present invention.
Fig. 3 is the air-fuel ration control signal mapping graph of the present invention.
The correction coefficient that Fig. 4 is the present invention selects signal mapping graph.
Detailed description of the invention
Refer to Fig. 1, a kind of non-limiting embodiment according to the present invention, the high temperature air of the present invention increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln to be included kiln body 100, helps gas header pipe 200 and gas header pipe 300.
The inside of kiln body 100 is provided with burner hearth (non-label), kiln body 100 is divided into cooling section 110, burning zone 120 and preheating section 130 along the longitudinal direction, and burning zone 120 includes along three control partition (non-label) that the longitudinal direction of kiln body 100 is sequentially arranged.
The high temperature air of the present invention increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln and includes corresponding to each control partition: thermocouple 121, control chamber 122 and five nozzles 123. Wherein, thermocouple 121 is arranged on the kiln body sidewall of each control partition such that it is able to obtain the zone temperature data in burning zone corresponding to each control partition 120. As in figure 2 it is shown, control chamber 122 is provided with casing 1221, the first blender 1222 of being placed in casing 1221, be connected to through casing 1,221 1 sidewall the first blender 1222 and help the combustion-supporting gas control arm 1223 gas header pipe 200, the combustion gas that is connected to the first blender 1222 and gas header pipe 300 through another sidewall of casing 1221 controls arm 1224 and extends to the gaseous mixture arm 1225 outside casing 1221 from the first blender 1222 through casing 1221 end wall. Wherein, it is positioned at the combustion-supporting gas control arm 1223 outside casing 1221 and is provided with the first electrodynamic valve V1 and the first thermometer T1, be positioned at the combustion-supporting gas control arm 1223 within casing 1221 and be provided with first-class gauge F1. It is positioned at the control arm 1224 of the combustion gas outside casing 1221 and is provided with the second electrodynamic valve V2 and second gauge F2, it is positioned at the gaseous mixture arm 1225 outside casing 1221 to be connected with five nozzles 123 on the kiln body sidewall being arranged at intervals at each control partition respectively, thus spraying combustion gas and combustion-supporting gas to stove chamber inner combustion heat release.
Thus, three control partition just can obtain the zone temperature data in the burning zone 120 of correspondence respectively and control the aperture of the second electrodynamic valve V2 in each control partition according to corresponding thermocouple 121, second gauge F2 sends the gas flow data of acquisition to control centre (central controller, not shown), control centre is according to the second gauge F2 gas flow data obtained, combustion air current amount data in the combustion-supporting gas control arm 1223 that first-class gauge F1 obtains and the combustion-supporting temperature data in the combustion-supporting gas control arm 1223 of the first thermometer T1 acquisition couple the aperture of the first electrodynamic valve V1 controlled in each control partition.The mixing gas injection of the combustion-supporting gas after flow and combustion gas will be adjusted to stove chamber inner combustion heat release so that combustion air current amount data that the first-class gauge F1 in each control partition obtains and the ratio of the second gauge F2 gas flow data obtained reach the optimal air-fuel ratio of systemic presupposition by five nozzles 123. Control centre carries out air-fuel ratio regulation according to mapping graph shown in Fig. 3, specifically, the temperature of the first thermometer T1 is more high, chemically correct fuel is set to more big, when the aperture of the second electrodynamic valve V2 changes, by regulating the aperture of the first electrodynamic valve V1 so that the theoretical air-fuel ratio obtained according to first-class gauge F1 and second gauge F2 levels off to chemically correct fuel. Such as, when temperature at the first thermometer T1 is about 250 degrees Celsius, chemically correct fuel is set to and is about 1.1, when temperature at the first thermometer T1 is about 450 degrees Celsius, chemically correct fuel is set to and is about 1.5, when between the temperature of the first thermometer T1 is 250-450 degree Celsius, chemically correct fuel is set to and linearly changes between 1.1-1.5.
As a kind of alternative embodiments, in order to make full use of the heat smoke of ceramic kiln, as shown in Figure 1, also include for helping gas header pipe 200 to provide the second blender 400 mixing combustion-supporting gas, second blender 400 is provided with heat smoke entrance 401, hot air inlet 402 and empty cigarette mixed gas outlet 403, heat smoke entrance 401 is connected with the tube wall of flue 133 by smoke backflow pipeline 404, and flue 133 is connected between the exhanst gas outlet 131 of preheating section 130 and chimney (not shown). Hot air inlet 402 connects pipeline 405 by hot-air and is connected with the cooling air outlet 115 of cooling section 110. Empty cigarette mixed gas outlet 403 is connected with helping gas header pipe 200 by pipeline. Thus, temperature is about the heat smoke of the oxygen content 15% of 400 degrees Celsius and temperature is about the hot-air of oxygen content 21% of 300 degrees Celsius and connects pipeline 405 via smoke backflow pipeline 404 and hot-air respectively and enter the combustion-supporting gas that formation temperature in the second blender 400 is about the oxygen content about 18% of 350 degrees Celsius. Meanwhile, in this non-limiting embodiment, between first-class gauge F1 and the first blender 1222, it is provided with obtaining the oxygen meter O of the oxygen content data in combustion-supporting gas at the combustion-supporting gas control arm 1223 within casing 1221.
In this alternative embodiments, control centre also carries out air-fuel ratio regulation according to mapping graph shown in Fig. 4, specifically, is multiplied by correction coefficient as correcting theory air-fuel ratio on the basis of the chemically correct fuel of Fig. 3, the oxygen content that oxygen meter O records is more big, correction coefficient is set to more little. Such as, when the oxygen content of oxygen meter O is about 15%, correction coefficient is set to and is about 1.5, when the oxygen content of oxygen meter O is about 21%, correction coefficient is set to and is about 1, when the oxygen content of oxygen meter O is between 15%-21%, correction coefficient is set to and linearly changes between 1.5-1. When the aperture of the second electrodynamic valve V2 changes, by regulating the aperture of the first electrodynamic valve V1 so that the theoretical air-fuel ratio obtained according to first-class gauge F1 and second gauge F2 levels off to correcting theory air-fuel ratio.
Additionally, in another kind of alternative embodiments, be provided with inputting in the first blender 122 first air-introduced machine W1 of combustion-supporting gas between the first thermometer T1 and first-class gauge F1 at the combustion-supporting gas control arm 1223 within casing 1221.Smoke backflow pipeline 404 is provided with inputting the second blower fan W2 of heat smoke in the second blender 400. Connect at hot-air and pipeline 405 is provided with inputting the 3rd blower fan W3 of hot-air in the second blender 400.
As the concrete application example of one, ceramic kiln startup stage, after zone temperature is increased to predetermined temperature, control centre just turns the aperture of the second electrodynamic valve V2 in the control chamber of correspondence down, mapping graph according to Fig. 3 and/or Fig. 4, control centre turns the aperture of the first electrodynamic valve V1 of correspondence accordingly down so that forms optimal air-fuel ratio between combustion-supporting gas and combustion gas, and can regulate several times until zone temperature is stable within the scope of design temperature.
As the concrete application example of another kind, when needing the temperature raising in a certain control partition correspondence burning zone of ceramic kiln, control centre just tunes up the aperture of the second electrodynamic valve V2 in the control chamber of correspondence, mapping graph according to Fig. 3 and/or Fig. 4, control centre tunes up the aperture of the first electrodynamic valve V1 of correspondence accordingly, make formation optimal air-fuel ratio between combustion-supporting gas and combustion gas, and can regulate several times until zone temperature is stable within the scope of design temperature.
As another alternative embodiments, the temperature in the kiln body 100 that at least three control partition is corresponding is set as gradually rising from one end of burning zone 120 to the other end, and such as, the furnace temperature of three control partition shown in Fig. 1 raises 10 degrees Celsius from left to right successively.
Although the preferred embodiment of the present invention being described in detail at this, it is to be understood that the invention is not limited in the concrete structure being described in detail here and illustrating, may be effected by one skilled in the art other modification and variant when not necessarily departing from the spirit and scope of the invention.
Claims (10)
1. a high temperature air increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is provided with the kiln body of burner hearth including inside, helps gas header pipe and gas header pipe, described kiln body is divided into cooling section, burning zone and preheating section along the longitudinal direction, described burning zone includes at least three control partition being sequentially arranged along the longitudinal direction of described kiln body, it is characterized in that, described high temperature air increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln and includes corresponding to each control partition:
Thermocouple, the zone temperature data in its burning zone that to be arranged on the kiln body sidewall of each described control partition corresponding to obtain each described control partition;
At least five nozzle, described at least five nozzle pitch is arranged on the kiln body sidewall of each described control partition; And
Control chamber, described control chamber is provided with casing, it is placed in the first blender in described casing, described first blender and the described combustion-supporting gas control arm helped gas header pipe it is connected to through described casing one sidewall, it is connected to the combustion gas described first blender and described gas header pipe through another sidewall of described casing and controls arm, and extend to the gaseous mixture arm outside described casing from described first blender through described casing end wall, wherein, it is positioned at the described combustion-supporting gas control arm outside described casing and is provided with the first electrodynamic valve and the first thermometer, the described combustion-supporting gas control arm being positioned at described box house is provided with first-class gauge, it is positioned at the control arm of the described combustion gas outside described casing and is provided with the second electrodynamic valve and second gauge, it is positioned at the described gaseous mixture arm outside described casing to be connected with described at least five nozzle respectively to spray to described stove chamber inner combustion heat release combustion gas and combustion-supporting gas,
Wherein, described first electrodynamic valve of each control partition and described second electrodynamic valve all independently control so that the aperture of described first electrodynamic valve changes along with the aperture of described second electrodynamic valve according to default air-fuel ratio and changes.
2. high temperature air as claimed in claim 1 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, described first blender is provided with and helps fuel gas inlet, fuel gas inlet and mixed gas outlet, described fuel gas inlet is helped to be connected with described combustion-supporting gas control arm, described fuel gas inlet controls arm with described combustion gas and is connected, and described mixed gas outlet is connected with described gaseous mixture arm.
3. high temperature air as claimed in claim 2 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, also include for helping gas header pipe to provide the second blender mixing combustion-supporting gas, described second blender is provided with heat smoke entrance, hot air inlet and empty cigarette mixed gas outlet, described heat smoke entrance is connected by the flue of smoke backflow pipeline with described preheating section, described hot air inlet connects pipeline by hot-air and is connected with the cooling air outlet of described cooling section, described empty cigarette mixed gas outlet helps gas header pipe to be connected by pipeline with described.
4. high temperature air as claimed in claim 3 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, the described combustion-supporting gas control arm at described box house is provided with oxygen meter to obtain the oxygen content data in combustion-supporting gas at described first-class gauge and described helping between fuel gas inlet.
5. high temperature air as claimed in claim 4 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, the described combustion-supporting gas control arm at described box house is provided with the first air-introduced machine to input combustion-supporting gas in described first blender between described first thermometer and described first-class gauge.
6. high temperature air as claimed in claim 5 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, described smoke backflow pipeline is provided with the second blower fan to input heat smoke in the second blender, and described hot-air connects pipeline and is provided with the 3rd blower fan to input hot-air in the second blender.
7. the high temperature air as according to any one of claim 1��6 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, described default air-fuel ratio is chemically correct fuel, and described chemically correct fuel is set to that the combustion-supporting temperature data obtained along with described first thermometer raise and become big.
8. the high temperature air as according to any one of claim 1��6 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, described default air-fuel ratio is the product of chemically correct fuel and correction coefficient, described chemically correct fuel is set to that the combustion-supporting temperature data obtained along with described first thermometer raise and become big, and described correction coefficient is set to that the oxygen content data obtained along with described oxygen meter becomes big and reduces.
9. the high temperature air as according to any one of claim 1��6 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, described second electrodynamic valve is set to when the zone temperature data that described thermocouple obtains are higher than design temperature range limit and gradually turns aperture down, until the zone temperature data that described thermocouple obtains are in described design temperature scope.
10. the high temperature air as according to any one of claim 1��6 increases temperature hypoxia flue gas mixing burning-assist Automatic Control ceramic kiln, it is characterized in that, described second electrodynamic valve is set to that aperture is adjusted to maximum and gradually turns aperture down when the difference of zone temperature data and the lower limit of design temperature scope is less than 100 degrees Celsius when the difference of the zone temperature data that described thermocouple obtains and the lower limit of design temperature scope is more than 200 degrees Celsius, until the zone temperature data that described thermocouple obtains are in described design temperature scope.
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| CN201610146071.1A CN105650673B (en) | 2016-03-15 | 2016-03-15 | High-temperature air and high-temperature low-oxygen flue gas mixed combustion-supporting type full-automatic control ceramic kiln |
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| CN201610146071.1A CN105650673B (en) | 2016-03-15 | 2016-03-15 | High-temperature air and high-temperature low-oxygen flue gas mixed combustion-supporting type full-automatic control ceramic kiln |
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| CN105650673A true CN105650673A (en) | 2016-06-08 |
| CN105650673B CN105650673B (en) | 2020-08-07 |
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| CN201610146071.1A Active CN105650673B (en) | 2016-03-15 | 2016-03-15 | High-temperature air and high-temperature low-oxygen flue gas mixed combustion-supporting type full-automatic control ceramic kiln |
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| CN112919777A (en) * | 2021-01-21 | 2021-06-08 | 河南旭阳光电科技有限公司 | System and method for controlling kiln temperature |
| CN113620567A (en) * | 2021-07-29 | 2021-11-09 | 甘肃旭康材料科技有限公司 | Glass bottle manufacturing system and glass bottle manufacturing method |
| CN113670071A (en) * | 2021-07-27 | 2021-11-19 | 中冶长天国际工程有限责任公司 | Step oxygen supply system for gas combustion and adjusting method |
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