CN103206857B - Method for operating environment-friendly energy-saving de-waxing kiln - Google Patents
Method for operating environment-friendly energy-saving de-waxing kiln Download PDFInfo
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- CN103206857B CN103206857B CN201210580017.XA CN201210580017A CN103206857B CN 103206857 B CN103206857 B CN 103206857B CN 201210580017 A CN201210580017 A CN 201210580017A CN 103206857 B CN103206857 B CN 103206857B
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Abstract
The invention relates to the technical field of ceramic machining equipment, in particular to a method for operating an environment-friendly energy-saving de-waxing kiln. A ceramic piece in a sintering cavity of the de-waxing kiln is de-waxed by a heating device, exhausted wax smoke is burned by a flaming device in a smoke vent and then secondarily burned by a hot heated plate, finally exhausted gas is free from extraneous odor, and suspended matters generated by insufficient burning are prevented from rapidly escaping. By the aid of the technical scheme, only about 12 kilograms of consumed gas is added in the whole de-waxing process, the exhaust effect of obviously decreasing harmful gas and the suspended matters can be achieved, atmospheric pollution is reduced, the de-waxing kiln is environment-friendly and energy-saving, and the cost of the de-waxing kiln is far lower than that of other domestic high-end and imported environment-friendly kilns.
Description
Technical field
The present invention relates to ceramic technical field of processing equipment, be specifically related to a kind of method of operating of wax removal kiln.
Background technology
In the production technology of advanced ceramics, need to use wax removal kiln, its effect is that the adhesives such as paraffin in ceramic pressure injection technique are discharged outside ceramic member, otherwise by the follow-up sintering procedure of impact.
In the tail gas that traditional wax removal kiln produces in de-waxing process, contain a large amount of unburneds content of wax suspension completely, this is while reaching more than 150 degrees Celsius due to the wax in ceramic member, to start gasification to discharge in stove, in stove temperature, from 150 ℃, rise to the process of 600 ℃, not clean-burning wax with burning after gas together with taken out of wax removal kiln, this type of material is discharged in atmosphere can cause smell pollution, affects environment.
Summary of the invention
The object of the invention is to, a kind of method of operating of environmental protection and energy saving wax removal kiln is provided, solve above technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of environmental protection and energy saving wax removal kiln method of operating, adopt heater to carry out paraffin removal processing to the ceramic member in the sintering chamber of wax removal kiln, the wax cigarette of discharging is discharged to outside by smokejack, it is characterized in that, in described smokejack, be also provided with a flame device and a heated sheet, the jet of described flame device is towards described heated sheet, and described heated sheet place is provided with for measuring the thermometric galvanic couple of heated sheet temperature;
Adopt following steps to carry out de-waxing:
1) ceramic member of wanting paraffin removal is sent in sintering chamber, closed wicket;
2) starting heater heats sintering chamber;
3) temperature in sintering chamber reaches 150 degree when above, starts flame device heated sheet is heated, and the wax cigarette that discharge in described sintering chamber is first by the jet of flame device, then after heated sheet, is discharged to outside;
4) when heater work is after approximately 20 minutes, spontaneous firing when wax cigarette passes through heated sheet from smokejack, now by being arranged at the heated sheet temperature that the thermometric galvanic couple at heated sheet place feeds back, control gas supply, to regulate the duration and degree of heating size of flame device, reach the clean-burning object of remaining suspension wax molecule in flue gas;
5) in sintering furnace, reach after 650 degree, close flame device.
The present invention realizes the second-time burning of wax in de-waxing process by aforesaid operations step, eliminated the peculiar smell producing in de-waxing process, makes de-waxing process more thorough.
The present invention arranges flame device in smokejack, to the heated sheet region in smokejack is heated, utilizes heated sheet and flame device to carry out secondary to the suspension of content of wax molecule and burns, and it is fully burnt, and eliminates peculiar smell.In practical operation, while reaching 130-180 ℃ in sintering chamber, ceramic member can produce a little wax cigarette, conventionally de-waxing process wax in the time of 200 ℃ ~ 600 ℃ just drains from ceramic body, but wax burn incompletely and become gas now, but changing the form of suspension into, part discharges, wax cigarette is overflowed in the time of 300 ℃ from smokejack, when through Vertical Channel, by flame device, heat and rapidly increase to the heated sheet location that is heated to 650 ℃ of left and right by flame device, due to stopping of heated sheet, the rate of climb of wax cigarette is lowered, make wax cigarette Yin Gaowen produce spontaneous combustion, and drive next-door neighbour's suspension to burn together, make heated sheet region form a high temperature spontaneous combustion district.After this, all gas through this region is discharged through chimney after all can being made by high temperature filtration suspension in gas fully burn.
In one end of described heated sheet, be provided with a bracing wire, described bracing wire can be controlled the landing of heated sheet, adjusts the discharge capacity of stove.
Described bracing wire preferably adopts metal bracing wire.
Described flame device preferably adopts firelock, and firelock carries out gas supply by gas pipeline.
Described heater preferably adopts a plurality of firelocks, and a plurality of firelocks are evenly arranged on the bottom in described sintering chamber, and a plurality of firelocks carry out gas supply by gas pipeline.
Described heated sheet preferentially adopts the high temperature resistant steel plate having conducted heat, and the jet of described flame device is towards the plate face of described heated sheet.
Described flame device is connected a control module with described heater, regulates the size of flame amount by control module regulating gas supply;
Described thermometric galvanic couple connects described control module.
Described control module connects a temperature sensor, described temperature sensor is arranged on the chamber wall in described sintering chamber or outside described sintering chamber, described temperature sensor is for detection of the temperature information in described sintering chamber, and temperature information is passed to described control module, described control module is controlled the duration and degree of heating of described heater to regulate the temperature in sintering chamber according to temperature information.
Beneficial effect: owing to adopting technique scheme, the present invention increases only 12 kilograms of left and right of gas consumption in whole de-waxing process, just can reach the emission effect of obvious minimizing pernicious gas and suspension, the pollution of reduction to atmosphere, environmental protection and energy saving, and cost is far below other domestic high-end and import environmental protection kilns.
Accompanying drawing explanation
Fig. 1 is operating procedure flow chart of the present invention;
Fig. 2 is the structural representation of wax removal kiln of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
With reference to Fig. 1, Fig. 2, a kind of environmental protection and energy saving wax removal kiln method of operating, comprise that one is provided with the wax removal kiln of flame device 1 and heater 2, in wax removal kiln, be provided with a sintering chamber 3, sintering chamber 3 connects a smokejack, the L-type passage that smokejack is comprised of vertical passageway 4 and interconnection, flame device 1 is arranged in the vertical passageway 4 of smokejack, the top of vertical passageway 4 is provided with a chimney 10, in vertical passageway 4, be also provided with a heated sheet 5, heated sheet 5 places are provided with thermometric galvanic couple, heated sheet 5 is provided with a bracing wire 6, bracing wire 6 is stretched out from a bracing wire outlet 7 of being located at the sidewall of vertical passageway 4, flame device 1 and heater 2 carry out gas supply by a gas pipeline 8, comprise following operating procedure:
1) ceramic member of wanting paraffin removal is sent in sintering chamber 3, closed wicket 9;
2) open the valve of gas pipeline 8, adjust the angle of heated sheet 5 and bracing wire 6 is fixed on wax removal kiln outer wall, guarantee chimney 10 unlatchings;
3) starting 2 pairs of sintering chambeies 3 of heater heats;
4), when the temperature in sintering chamber 3 reaches more than 150 ℃, start 1 pair of heated sheet 5 of flame device and heat;
5) after heater 2 is worked 20 minutes, ceramic member starts normal de-waxing, now, needs the valve of adjusting gas pipeline 8 that the combustion gas conveying capacity of flame device is reduced to reduce the duration and degree of heating of flame device 1, avoids unburned suspension abundant and generation to flee from fast;
6), when the temperature in sintering chamber 3 reaches 650 ℃, flame device 1 cuts out.
The present invention realizes the second-time burning of wax in de-waxing process by aforesaid operations step, eliminated the wax taste producing in de-waxing process, makes de-waxing process more thorough.
The present invention arranges flame device in smokejack, to the heated sheet in smokejack is heated, utilizes heated sheet and flame device to carry out second-time burning to the suspension of the content of wax, makes its sufficient combustion, eliminates wax taste.Wax can fully burn in when more than 650 ℃, in real work, while reaching 130 ℃ ~ 180 ℃ in sintering chamber, ceramic member can produce a little wax cigarette, conventionally de-waxing process wax in the time of 200 ℃ ~ 600 ℃ just drains from ceramic body, but wax burn incompletely and become gas now, but changing the form of suspension into, part discharges, wax cigarette is overflowed in the time of 300 ℃ from smokejack, when through Vertical Channel, by flame device, heat and rapidly increase to the heated sheet region that is heated to 650 ℃ of left and right by flame device, due to stopping of heated sheet, the rate of climb of wax cigarette is lowered, make wax cigarette Yin Gaowen produce spontaneous combustion, and drive next-door neighbour's suspension to burn together, make heated sheet region form a high temperature spontaneous combustion district, and the high temperature that suspension forms, can continue again heated sheet region to heat, it is assisted and provide heat for follow-up burning.After this, the gas in this region of all processes all can fully burn the suspension in gas by high temperature filtration, reaches paraffin removal effect more completely, and the gas producing after sufficient combustion is discharged through chimney.
With reference to Fig. 2, heated sheet 5 adopts a high temperature resistant steel plate, and the jet of flame device 1 is towards the plate face of heated sheet 5.Bracing wire 6 adopts a metal bracing wire.User can be by pulling bracing wire 6, control the height that heated sheet 5 upwards lifts, and then control is positioned at the circulation in heated sheet two parts space Shang Xia 5, bracing wire 6 more up pulls heated sheet 5, the circulation that is positioned at heated sheet two parts space Shang Xia 5 is larger, more easily make 5 heating of wax cigarette not subjected plate just discharge, can not be fully burned; Bracing wire 6, toward transferring heated sheet 5, causes convection current not smooth, and oxygen feeding amount reduces, and temperature cannot rise, and affects de-waxing effect, therefore need to pull bracing wire to realize pollution-free de-waxing according to field condition.Bracing wire outlet 7 is provided with a deep bead 11, and deep bead 11 stretches in vertical passageway 4, and has certain distance with the offside sidewall of vertical passageway 4, and deep bead 11 is positioned at heated sheet 5 tops.Flame device 1 is connected a control module with heater 2, by control module regulating gas supply, regulates duration and degree of heating size.Control module connects a temperature sensor, temperature sensor is arranged in sintering chamber 3, temperature sensor is for detection of the temperature information in sintering chamber 3, and temperature information is passed to control module, the duration and degree of heating size that control module is controlled heater 2 according to temperature information is to adjust the temperature in sintering chamber 3.Thermometric galvanic couple connects described control module, is convenient to regulate by the temperature value with reference to thermometric galvanic couple feedback the duration and degree of heating of flame device 1.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. an environmental protection and energy saving wax removal kiln method of operating, adopt heater to carry out paraffin removal processing to the ceramic member in the sintering chamber of wax removal kiln, the wax cigarette of discharging is discharged to outside by smokejack, it is characterized in that, in described smokejack, be also provided with a flame device and a heated sheet, the jet of described flame device is towards described heated sheet, and described heated sheet place is provided with for measuring the thermometric galvanic couple of heated sheet temperature;
Adopt following steps to carry out de-waxing:
1) ceramic member of wanting paraffin removal is sent in sintering chamber, closed wicket;
2) open the valve of gas pipeline, adjust the angle of heated sheet and bracing wire is fixed on wax removal kiln outer wall, guarantee chimney unlatching;
3) starting heater heats sintering chamber;
4) temperature in sintering chamber reaches 150 degree when above, starts flame device heated sheet is heated, and the wax cigarette that discharge in described sintering chamber is first by the jet of flame device, then after heated sheet, is discharged to outside;
5) when heater work is after approximately 20 minutes, spontaneous firing when wax cigarette passes through heated sheet from smokejack, now by being arranged at the heated sheet temperature that the thermometric galvanic couple at heated sheet place feeds back, control gas supply, to regulate the duration and degree of heating size of flame device, reach the clean-burning object of remaining suspension wax molecule in flue gas;
6) in sintering furnace, reach after 650 degree, close flame device.
2. the method for operating of a kind of environmental protection and energy saving wax removal kiln according to claim 1, is characterized in that, a side of described heated sheet is connected with the inwall of described smokejack, and the offside of described heated sheet is provided with the bracing wire that stove discharge capacity is adjusted in a control heated sheet landing.
3. the method for operating of a kind of environmental protection and energy saving wax removal kiln according to claim 2, is characterized in that, described bracing wire adopts metal bracing wire.
4. according to the method for operating of a kind of environmental protection and energy saving wax removal kiln described in any one in claims 1 to 3, it is characterized in that, described flame device adopts firelock, and firelock carries out gas supply by gas pipeline.
5. the method for operating of a kind of environmental protection and energy saving wax removal kiln according to claim 4, it is characterized in that, described heater adopts a plurality of firelocks, and a plurality of firelocks are evenly arranged on the bottom in described sintering chamber, and a plurality of firelocks carry out gas supply by gas pipeline.
6. according to the method for operating of a kind of environmental protection and energy saving wax removal kiln described in any one in claims 1 to 3, it is characterized in that, described heated sheet adopts a high temperature resistant steel plate, and the jet of described flame device is towards the plate face of described heated sheet.
7. according to the method for operating of a kind of environmental protection and energy saving wax removal kiln described in any one in claims 1 to 3, it is characterized in that, described flame device is connected a control module with described heater, regulates the size of flame amount by control module regulating gas supply;
Described thermometric galvanic couple connects described control module.
8. the method for operating of a kind of environmental protection and energy saving wax removal kiln according to claim 7, it is characterized in that, described control module connects a temperature sensor for detection of described sintering cavity temperature, and described temperature sensor is arranged on the chamber wall in described sintering chamber or outside described sintering chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580017.XA CN103206857B (en) | 2012-12-27 | 2012-12-27 | Method for operating environment-friendly energy-saving de-waxing kiln |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210580017.XA CN103206857B (en) | 2012-12-27 | 2012-12-27 | Method for operating environment-friendly energy-saving de-waxing kiln |
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| CN103206857A CN103206857A (en) | 2013-07-17 |
| CN103206857B true CN103206857B (en) | 2014-11-19 |
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| CN201210580017.XA Active CN103206857B (en) | 2012-12-27 | 2012-12-27 | Method for operating environment-friendly energy-saving de-waxing kiln |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105180650B (en) * | 2015-08-25 | 2017-04-05 | 梅州玉丰特陶科技有限公司 | A kind of tunnel cave for smokeless and odorless energy-conserving and environment-protective de-waxing |
| CN111964442B (en) * | 2020-08-27 | 2022-07-01 | 溆浦易锋精细瓷业有限责任公司 | Sintering de-waxing furnace for ceramic production |
| CN115218667A (en) * | 2021-11-22 | 2022-10-21 | 中冶长天国际工程有限责任公司 | Gas flow decreasing intermittent injection auxiliary sintering method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0217385A (en) * | 1988-07-05 | 1990-01-22 | Kobe Steel Ltd | Sintering furnace equipped with wax removing device |
| JPH03191293A (en) * | 1989-12-18 | 1991-08-21 | Daido Steel Co Ltd | Processing of binder |
| CN1182073C (en) * | 2002-09-30 | 2004-12-29 | 闻本良 | Injection formation technology for silicon carbide |
| CN200989727Y (en) * | 2006-12-29 | 2007-12-12 | 黄定福 | Stepped de-waxing kiln |
| CN102767947B (en) * | 2012-08-14 | 2014-06-04 | 浙江新光阳照明股份有限公司 | Device and method for discharging wax in preparation process of aluminum oxide ceramic tube |
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