CN114956513A - TFT glass kiln emergency furnace pressure control device and control method - Google Patents
TFT glass kiln emergency furnace pressure control device and control method Download PDFInfo
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- CN114956513A CN114956513A CN202210452614.8A CN202210452614A CN114956513A CN 114956513 A CN114956513 A CN 114956513A CN 202210452614 A CN202210452614 A CN 202210452614A CN 114956513 A CN114956513 A CN 114956513A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention discloses an emergency furnace pressure control device and method for a TFT (thin film transistor) glass furnace, and belongs to the technical field of glass furnace maintenance. When the flue assembly breaks down, the glass kiln is communicated with the air mixing box; the cold air of the cold air generating device enters the air mixing box through the cold air shunting device of the air mixing box; the jet gas of the jet pipe airflow control device also enters the air mixing box; jet gas and cold gas in the air mixing box are mixed with high-temperature flue gas and then discharged; adjusting a cold air generation control device, and controlling the flow of cold air to enable the detection temperature of the temperature detector to be within 800 ℃; and adjusting the jet pipe airflow control device to enable the pressure value of the pressure detector to be within 80 Pa. The emergency furnace pressure control device and the furnace pressure control method for the TFT glass furnace can quickly release and control the smoke and the furnace pressure of the furnace, solve the defect that the prior art cannot ensure the quick release and the stable control of the furnace pressure, and stabilize the quality of the glass liquid of the furnace.
Description
Technical Field
The invention belongs to the technical field of glass kiln maintenance, and particularly relates to a TFT glass kiln emergency furnace pressure control device and a furnace pressure control method.
Background
The glass kiln is core equipment of a melting procedure in the glass production industry, and comprises a front material-bearing device, a rear connecting channel and forming equipment. The glass kiln is used for melting the uniform and good batch materials provided by the batching procedure, enabling the quality of molten glass to reach relevant requirements through the processes of homogenization, clarification and the like, and supplying the molten glass to the forming equipment through a channel. The glass tank furnace is a thermal device operating at high temperature, the glass melting in the glass tank furnace is a complex process, the change of multi-component solid, liquid and gas among three phases is covered, the change process of physical and chemical processes of glass raw material changing into glass liquid, the energy and substance transfer process of heat transfer, mass transfer and the like are included, and the mechanism is complex. Various factors, such as self structural design, operation factors (including temperature, raw materials, moisture and fuel), natural environment, furnace pressure and the like, can have more or less influence on the stable operation of the tank furnace, thereby influencing the quality of the molten glass.
The smoke exhaust system is a system which ensures that the kiln normally, continuously and effectively exhausts smoke, maintains the kiln pressure in a normal range with normal process requirements, and provides air conveying and smoke exhaust. The replacement and cleaning of kiln equipment, especially the abnormal replacement operation of system components such as a fan, a valve and a flue assembly of a smoke exhaust system, will result in great changes of kiln pressure. Sudden changes and long-term abnormalities of the kiln pressure can cause great influences on the kiln process and the quality of molten glass, and in severe cases, the refractory materials and equipment of the kiln are damaged. Therefore, the reliability and integrity of the furnace pressure control device must be considered from the design stage, and especially when the furnace device is abnormal, the design of the furnace pressure emergency adjusting device of the furnace is particularly important.
At present, when smoke exhaust systems of a smoke exhaust fan, a pipeline valve, a flue assembly and the like of a glass kiln have faults and kiln smoke and furnace pressure need to be released rapidly, emergency pressure relief is generally carried out on the kiln by adopting methods of opening a kiln observation port, opening a dust cleaning port of the flue assembly, detaching the flue assembly, manufacturing a temporary smoke exhaust pipeline, pulling out a batch feeder and the like, but the problems that the furnace pressure is high and cannot be stably controlled exist, the production process and the quality of molten glass are influenced while great damage is caused to the kiln and auxiliary equipment, and even production is interrupted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an emergency furnace pressure control device and a furnace pressure control method for a TFT glass furnace.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a TFT glass kiln emergency furnace pressure control device comprises a glass kiln, wherein the periphery of the glass kiln is made of glass kiln refractory materials, one side of each glass kiln refractory material is provided with a feeding port and a glass kiln exhaust port, the other side of each glass kiln refractory material is provided with a glass kiln observation port, and a pressure detector is arranged in the glass kiln; a flue assembly is arranged at a smoke outlet of the glass kiln, and the on-off of the flue assembly and the flue assembly is controlled by a smoke outlet plug;
the glass kiln viewing port is connected with a wind mixing box through a butt flange, and the on-off of the glass kiln viewing port and the wind mixing box is controlled by a plug;
the bottom of the air mixing box is provided with an air mixing box cold air shunting device, the air mixing box cold air shunting device is connected with a cold air generating device through a shunting device air inlet pipe and a first connecting pipe in sequence, the cold air generating device is connected with a cold air generation control device, and the cold air generation control device is provided with a cold air generation control device air inlet pipe;
a jet pipe is also arranged in the air mixing box, the jet pipe extends to the outside of the air mixing box and is connected with a jet pipe airflow control device through a second connecting pipe, and an air inlet pipe of the jet pipe airflow control device is arranged on the jet pipe airflow control device;
a temperature detector is arranged in the air mixing box, and an air outlet of the air mixing box is connected with a smoke exhaust pipeline; the air inlet pipe of the cold air generation control device and the air inlet pipe of the jet pipe airflow control device are compressed air.
Furthermore, a smoke outlet regulating valve is arranged in the smoke exhaust pipeline.
Furthermore, the box body of the air mixing box, the smoke exhaust pipeline, the cold air flow dividing device of the air mixing box, the smoke outlet adjusting valve, the butt flange, the jet pipe and the air inlet pipe of the flow dividing device are made of SUS, SUS or SUS.
Furthermore, the cold air generating device is also provided with a cold air generating device exhaust pipe used for exhausting high-temperature gas.
Furthermore, a silencer is arranged in the exhaust pipe of the cold air generating device.
Furthermore, the first connecting pipe is a hose, and two ends of the first connecting pipe are provided with quick plugs.
Further, the second connecting pipe is a hose, and two ends of the second connecting pipe are provided with quick plugs.
The furnace pressure control method of the emergency furnace pressure control device of the TFT glass kiln comprises the following operations:
when the flue assembly breaks down, removing a plug in an observation port of the glass kiln to communicate the glass kiln with the air mixing box, and plugging a smoke outlet of the glass kiln by using a smoke outlet plug;
meanwhile, the cold air generating device and the jet pipe airflow control device are started, and the cold air of the cold air generating device sequentially passes through the first connecting pipe and the air inlet pipe of the shunting device to reach the cold air shunting device of the air mixing box and enters the air mixing box through the cold air shunting device of the air mixing box;
the jet gas of the jet pipe airflow control device enters the air mixing box through the air inlet pipe of the flow dividing device and the jet pipe;
jet gas and cold gas in the air mixing box are mixed with high-temperature flue gas and then discharged;
adjusting a cold air generation control device, and controlling the flow of cold air to enable the detection temperature of the temperature detector to be within 800 ℃;
adjusting the jet pipe airflow control device to enable the pressure value of the pressure detector to be within Pa;
after the fault treatment of the flue assembly is completed, starting all devices for recovering the flue assembly, and pulling out the plugs of the smoke outlet;
and then plugging the observation port of the glass kiln by using a plug to separate the glass kiln from the air mixing box.
Further, the air outlet pressure of the jet pipe air flow control device is controlled to be 0.4-0.8MPa, and the air inlet pressure of the air inlet pipe of the jet pipe air flow control device is controlled to be 0.6-1.0 MPa;
the air outlet pressure of the cold air generation control device is controlled to be 0.4-0.8MPa, and the air inlet pressure of the air inlet pipe of the cold air generation control device is 0.6-1.0 MPa;
the temperature of the temperature detector is controlled within 800 ℃;
the pressure value of the pressure detector is stably controlled within 80 Pa.
Compared with the prior art, the invention has the following beneficial effects:
the emergency furnace pressure control device and the furnace pressure control method for the TFT glass furnace can quickly release and control the smoke and the furnace pressure of the furnace, solve the defect that the prior art cannot ensure the quick release and the stable control of the furnace pressure, and stabilize the quality of the glass liquid of the furnace while ensuring the safety of furnace equipment and production processes.
Drawings
FIG. 1 is a schematic structural diagram of an emergency furnace pressure control device of a TFT glass furnace of the invention.
In the drawings: 1-air mixing box, 2-smoke exhaust pipe, 3-glass kiln, 4-flue assembly, 5-air mixing box cold air flow divider, 6-flow divider air inlet pipe, 7-jet pipe, 8-glass kiln viewing port, 9-glass kiln smoke exhaust port, 10-cold air generator, 11-cold air generation controller, 12-jet pipe air flow controller, 13-cold air generation controller air inlet pipe, 14-jet pipe air flow controller air inlet pipe, 15-first connecting pipe, 16-second connecting pipe, 17-cold air generator air outlet pipe, 18-butt flange, 19-temperature detector, 20-pressure detector, 21-emergency smoke, 22-normal smoke, 23-smoke outlet regulating valve, 24-glass kiln refractory material, 25-smoke outlet plug and 26-feeding port.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, fig. 1 is a schematic structural diagram of an emergency furnace pressure control device of a TFT glass furnace of the present invention, the emergency furnace pressure control device of the TFT glass furnace comprises a glass furnace 3, a glass furnace refractory 24 is arranged at the periphery of the glass furnace 3, a feeding port 26 and a glass furnace smoke outlet 9 are arranged at one side of the glass furnace refractory 24, a glass furnace viewing port 8 is arranged at the other side, and a pressure detector 20 is arranged in the glass furnace 3; a flue assembly 4 is arranged at the smoke outlet 9 of the glass kiln, and the on-off of the flue assembly and the smoke outlet is controlled by a smoke outlet plug 25;
the glass kiln viewing port 8 is connected with a wind mixing box 1 through a butt flange 18, and the on-off of the wind mixing box and the wind mixing box is controlled by a plug; the bottom of the air mixing box 1 is provided with an air mixing box cold air shunting device 5, the air mixing box cold air shunting device 5 is connected with a cold air generating device 10 through a shunting device air inlet pipe 6 and a first connecting pipe 15 in sequence, the cold air generating device 10 is connected with a cold air generating control device 11, and the cold air generating control device 11 is provided with a cold air generating control device air inlet pipe 13; a jet pipe 7 is further arranged in the air mixing box 1, the jet pipe 7 extends to the outside of the air mixing box 1 and is connected with a jet pipe airflow control device 12 through a second connecting pipe, and an air inlet pipe 14 of the jet pipe airflow control device is arranged on the jet pipe airflow control device 12; a temperature detector 19 is arranged in the air mixing box 1, an air outlet of the air mixing box 1 is connected with a smoke exhaust pipeline 2, and a smoke outlet regulating valve 23 is arranged in the smoke exhaust pipeline 2; the air intake in the air intake pipe 13 of the cold air generation control device and the air intake pipe 14 of the jet pipe airflow control device are both compressed air.
As can be seen from fig. 1, when the flue assembly 4 is in normal operation, the high-temperature flue gas-normal flue gas 21 generated in the glass kiln 3 is discharged from the flue assembly 4, and when the flue assembly 4 is in failure, the high-temperature flue gas-emergency flue gas 21 generated in the glass kiln 3 is discharged from the emergency furnace pressure control device through the glass kiln viewing port 8.
Further, the air mixing box 1, the smoke exhaust pipeline 2, the air mixing box cold air diversion device 5, the smoke outlet adjusting valve 23, the butt flange 18, the jet pipe 7 and the diversion device air inlet pipe 6 are made of metal materials, and can be made of SUS304, SUS16 and SUS310 materials selectively;
further, the cold air generating device is provided with an air inlet 13 and two air outlets, and the directions of the two air outlets are respectively a cold air generating device exhaust pipe 17 and a first connecting pipe 15;
further, the gas in the air inlet pipe 13 of the cold air generation control device is compressed air;
further, the exhaust pipe 17 of the cold air generating device is provided with a silencer, and the exhausted gas is high-temperature gas;
further, the direction of the first connecting pipe 15 for air outlet of the cold air generating device is low-temperature gas treated by the cold air generating device;
further, the first connecting pipe 15 is a hose with two ends capable of being rapidly detached and installed, and two ends are both provided with a rapid plug;
further, the air inlet pipe 14 of the jet pipe airflow control device 12 is compressed air;
further, the jet pipe airflow control device 12 is provided with a pressure, flow and temperature detector and a pressure and flow size adjusting device;
further, the second connecting pipe 16 is a hose with two ends capable of being rapidly disassembled and assembled, and the two ends are both provided with a rapid plug;
further, the airflow direction at the outlet of the jet pipe 7 is vertical and upward;
further, the airflow direction of the jet pipe 7 is from the air inlet pipe 14 of the jet pipe airflow control device to the jet pipe airflow control device 12, then to the second connecting pipe 16, and finally to the jet pipe 7;
further, the gas pressure and flow at the outlet of the jet pipe 7 can be adjusted at will by the jet pipe airflow control device 12 according to the detection value of the glass kiln pressure detector 20 until the requirement of the glass kiln pressure difference is met;
further, the gas and the flue gas sprayed from the jet pipe 7 are mixed in the smoke exhaust pipe 2 and then discharged.
Furthermore, each set of glass kiln furnace pressure emergency adjusting device is generally provided with 1 jet pipe 7, but a plurality of jet pipes can be arranged according to the output amount of the glass kiln and the smoke amount;
furthermore, two sets of glass kiln furnace pressure emergency adjusting devices are generally arranged, but the number of the glass kiln furnace pressure emergency adjusting devices is increased or decreased according to the output amount of the glass kiln and the amount of smoke;
further, the flue gas outlet regulating valve 23 has a function of roughly regulating the pressure of the glass kiln, and the simple rough control of the pressure of the glass kiln is realized by regulating the opening degree of the flue gas outlet regulating valve 23;
furthermore, the air flow direction of the air mixing box cold air shunting device 5 is from an air inlet pipe 13 of the cold air generation control device to the cold air generation control device 11, then to the cold air generation device 10, then to the first connecting pipe 15, then to the shunting device air inlet pipe 6, then to the air mixing box cold air shunting device 5, and finally to the air mixing box 1;
further, the air mixing box 1 is mainly responsible for mixing and cooling high-temperature flue gas discharged by the glass kiln and low-temperature gas sent by the air mixing box cold air shunting device 5 to reach the temperature required by safe operation and process control of equipment, wherein the temperature is required to be lower than 800 ℃;
furthermore, the caliber of the butt flange 18 is larger than the size of the observation port 8 of the glass kiln, so that the emergency butt joint speed and quality are facilitated;
further, the outlet pressure of the jet pipe airflow control device 12 is controlled to be 0.4-0.8MPa, and the inlet pressure of the inlet pipe 14 of the jet pipe airflow control device is 0.6-1.0 MPa; the outlet pressure of the cold air generation control device 11 is controlled to be 0.4-0.8MPa, and the inlet pressure of the inlet pipe 13 of the cold air generation control device is 0.6-1.0 MPa; the temperature of the temperature detector 19 is controlled within 800 ℃, and the pressure value of the pressure detector 20 is stably controlled within 80 Pa.
The emergency furnace pressure control device for the TFT glass kiln disclosed by the invention is used in the following process:
step 1, connecting and assembling an air inlet pipe 14 of a jet pipe airflow control device, a jet pipe airflow control device 12 and a second connecting pipe 16 in sequence;
step 5, the flue gas outlet regulating valve 23 is in a full open state;
step 6, when the faults of the fan, the valve and the like which are the auxiliary components of the flue assembly 4 cause that the smoke can not be discharged normally and the furnace pressure can not be controlled, immediately removing a plug of the observation port 8 of the glass furnace to ensure that the glass furnace 3 is communicated with the air mixing box 1, and butting the air mixing box 1 with the observation port 8 of the glass furnace through the butting flange 18;
step 7, starting the cold air generating device 10 and the jet pipe airflow control device 12 while the butt flange 18 is in butt joint with the glass kiln observation port 8;
step 8, adjusting the cold air generation control device 11 to ensure that the temperature of the temperature detector 19 is controlled within 800 ℃;
step 9, adjusting the opening of the flue gas outlet adjusting valve 23, and roughly adjusting the furnace pressure of the kiln;
step 10, adjusting the jet pipe airflow control device 12 to ensure that the pressure value of the pressure detector 20 is stably controlled within 80 Pa;
step 11, when the flue assembly 4 is in fault and needs to be replaced, sequentially operating according to the steps 1 to 10; meanwhile, the smoke vent 9 of the glass kiln is plugged by a smoke vent plug 25.
Step 12, after the fault treatment is finished, starting all devices of the recovery flue assembly 4, pulling out the smoke outlet plug 25, and ensuring that the furnace pressure is controllable;
step 13, dismantling the components of the whole set of emergency furnace pressure control device, and plugging the observation port 8 of the glass furnace by a plug;
and step 14, accurately adjusting the flue assembly 4, recovering the furnace pressure to a normal control state before the fault, and ending the operation.
When smoke exhaust systems such as a smoke exhaust fan, a pipeline valve and a flue assembly of a glass kiln have faults, the kiln smoke and furnace pressure are released by adopting methods such as opening a kiln observation port, opening a dust removal port of the flue assembly, detaching the flue assembly, manufacturing a temporary smoke exhaust pipeline and pulling out a batch feeder, the problems of high furnace pressure, incapability of stable control and the like exist, the production process and the quality of molten glass are influenced while great damage is caused to the kiln and auxiliary equipment, and even the production is interrupted.
The set of emergency furnace pressure control device is quickly installed when a smoke exhaust system such as a smoke exhaust fan, a pipeline valve, a flue assembly and the like of the glass kiln has faults, and is operated according to the set of method, so that the rapid release and the accurate control of the furnace smoke and the furnace pressure are realized, the defects that the rapid release and the stable control of the furnace pressure cannot be ensured in the prior art are overcome, and the quality of glass liquid output by the kiln is stabilized while the safety of kiln equipment and production processes is ensured.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. The emergency furnace pressure control device of the TFT glass furnace is characterized by comprising a glass furnace (3), wherein the periphery of the glass furnace (3) is provided with a glass furnace refractory material (24), one side of the glass furnace refractory material (24) is provided with a feeding port (26) and a glass furnace smoke outlet (9), the other side of the glass furnace refractory material is provided with a glass furnace observation port (8), and a pressure detector (20) is arranged in the glass furnace (3); a flue assembly (4) is arranged at the smoke outlet (9) of the glass kiln, and the on-off of the smoke outlet and the flue assembly are controlled by a smoke outlet plug (25);
the glass kiln observation port (8) is connected with the air mixing box (1) through a butt flange (18), and the on-off of the air mixing box and the air mixing box is controlled by a plug;
the bottom of the air mixing box (1) is provided with an air mixing box cold air shunting device (5), the air mixing box cold air shunting device (5) is connected with a cold air generating device (10) through a shunting device air inlet pipe (6) and a first connecting pipe (15) in sequence, the cold air generating device (10) is connected with a cold air generating control device (11), and the cold air generating control device (11) is provided with a cold air generating control device air inlet pipe (13);
a jet pipe (7) is also arranged in the air mixing box (1), the jet pipe (7) extends to the outside of the air mixing box (1) and is connected with a jet pipe airflow control device (12) through a second connecting pipe, and an air inlet pipe (14) of the jet pipe airflow control device is arranged on the jet pipe airflow control device (12);
a temperature detector (19) is arranged in the air mixing box (1), and an air outlet of the air mixing box (1) is connected with a smoke exhaust pipeline (2); the air inlet in the air inlet pipe (13) of the cold air generation control device and the air inlet pipe (14) of the jet pipe airflow control device are compressed air.
2. The TFT glass kiln emergency furnace pressure control device according to claim 1, characterized in that a flue gas outlet regulating valve (23) is arranged in the smoke exhaust pipe (2).
3. The TFT glass kiln emergency furnace pressure control device according to claim 1, characterized in that the box body of the air mixing box (1), the smoke exhaust pipeline (2), the air mixing box cold air shunting device (5), the smoke outlet regulating valve (23), the butt flange (18), the jet pipe (7) and the shunting device air inlet pipe (6) are made of SUS (304), SUS (16) or SUS (310).
4. The emergency furnace pressure control device of the TFT glass furnace according to claim 1, wherein the cold air generating device (10) is further provided with a cold air generating device exhaust pipe (17) for exhausting high temperature gas.
5. The emergency furnace pressure control device of the TFT glass furnace as claimed in claim 1, wherein a silencer is arranged in the exhaust pipe (17) of the cold air generating device.
6. The TFT glass kiln emergency furnace pressure control device of claim 1, characterized in that the first connecting pipe (15) is a hose, both ends of which are provided with quick plugs.
7. The emergency furnace pressure control device for the TFT glass furnace according to claim 1, wherein the second connecting pipe (16) is a hose, and both ends of the hose are provided with quick plugs.
8. The furnace pressure control method of the emergency furnace pressure control device of the TFT glass furnace, which is characterized by comprising the following operations:
(1) when the flue assembly (4) breaks down, a plug in the observation port (8) of the glass kiln is removed, so that the glass kiln (3) is communicated with the air mixing box (1), and the smoke outlet (9) of the glass kiln is plugged by a smoke outlet plug (25);
meanwhile, a cold air generating device (10) and a jet pipe airflow control device (12) are started, and cold air of the cold air generating device (10) sequentially passes through a first connecting pipe (15) and a shunting device air inlet pipe (6) to reach a cold air shunting device (5) of the air mixing box and enters the air mixing box (1) from the cold air shunting device (5) of the air mixing box;
the jet gas of the jet pipe airflow control device (12) enters the air mixing box (1) through the air inlet pipe (6) of the shunting device and the jet pipe (7);
jet gas and cold gas in the air mixing box (1) are mixed with high-temperature flue gas and then discharged;
(2) adjusting a cold air generation control device (11) to control the flow of cold air so that the detection temperature of the temperature detector (19) is within 800 ℃;
adjusting the jet pipe airflow control device (12) to enable the pressure value of the pressure detector (20) to be within (80) Pa;
(3) after the fault treatment of the flue assembly (4) is finished, starting all equipment for recovering the flue assembly (4), and pulling out a smoke outlet plug (25);
then, the glass kiln viewing port (8) is plugged by a plug to separate the glass kiln (3) and the air mixing box (1).
9. The furnace pressure control method of the TFT glass furnace emergency furnace pressure control device according to claim 1,
the outlet pressure of the jet pipe airflow control device (12) is controlled to be 0.4-0.8MPa, and the inlet pressure of the inlet pipe (14) of the jet pipe airflow control device is 0.6-1.0 MPa;
the outlet pressure of the cold air generation control device (11) is controlled to be 0.4-0.8MPa, and the inlet pressure of the inlet pipe (13) of the cold air generation control device is 0.6-1.0 MPa;
the temperature of the temperature detector (19) is controlled within 800 ℃;
the pressure value of the pressure detector (20) is stably controlled within 80 Pa.
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| CN114956513B (en) | 2023-07-25 |
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