CN110590129A - Automatic ash removal liquid crystal substrate glass combustion system and ash removal method - Google Patents
Automatic ash removal liquid crystal substrate glass combustion system and ash removal method Download PDFInfo
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- CN110590129A CN110590129A CN201910983432.1A CN201910983432A CN110590129A CN 110590129 A CN110590129 A CN 110590129A CN 201910983432 A CN201910983432 A CN 201910983432A CN 110590129 A CN110590129 A CN 110590129A
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- ash removal
- oxygen
- natural gas
- supply pipeline
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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
-
- 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
- C03B5/235—Heating the glass
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
An automatic ash-removing liquid crystal substrate glass combustion system and an ash-removing method comprise a burning gun, an oxygen supply pipeline, a natural gas supply pipeline, an ash-removing gas supply pipeline and a control system, wherein the three supply pipelines are respectively communicated with the burning gun; an oxygen actuator is arranged on the oxygen supply pipeline, a natural gas actuator is arranged on the natural gas supply pipeline, and a control electromagnetic valve is arranged on the ash removal gas supply pipeline; the control system controls the oxygen actuator, the natural gas actuator and the control electromagnetic valve. When the ash is removed, conveying the ash removing gas to the burning gun while stopping conveying the oxygen and the natural gas to the burning gun; and step two, after the first preset time, stopping conveying the ash removal gas to the burning gun, and simultaneously conveying oxygen and natural gas to the burning gun. The invention can rapidly finish the ash removal work of the burning gun, effectively reduce the workload, increase the ash removal efficiency, simultaneously avoid the risk of damaging the burning gun by high temperature in the pool furnace during the flameout period of the burning gun, reduce the occurrence of potential safety hazards and improve the production stability of a production line.
Description
Technical Field
The invention relates to the technical field of liquid crystal substrate glass production, in particular to an automatic ash removal liquid crystal substrate glass combustion system and an ash removal method.
Background
In the process of manufacturing the liquid crystal substrate glass, the requirement on temperature is very strict, the liquid crystal substrate glass belongs to high-alumina alkali-free borosilicate glass, the melting difficulty is high, and in the production process of the liquid crystal substrate glass, in order to ensure the full melting of glass liquid, the temperature of the glass liquid can reach over 1630 ℃.
Among the prior art, the glass liquid melting process mainly heats through pure oxygen combustion system and electric boosting system are dual, and the furnace inner space adopts the pure oxygen rifle to heat, wherein, 1 st, 2, 3 group's burning rifle heats, and 4 th group burns the rifle and mainly cools off, melts the in-process at high temperature, and the batch is under physical action and chemical action, and the flue gas produces a large amount of high temperature dust, waste gas, volatile matters and carbon deposit etc. in the stove, and these matters can be attached to burning the rifle, cause combustion system to burn the rifle shutoff under the high temperature state more easily. Along with aggravation of the phenomenon of lance mouth shutoff, can influence the flame state of lance in the stove, the phenomenon that flame floats or swings down appears, flame unstability can cause in the stove to cooperate the material powder and the glass liquid is heated inhomogeneous, causes the influence to the melting quality to cause the production fluctuation, influence glass quality.
In order to avoid the problem of glass quality reduction caused by gun burning blockage, 2 persons are usually required to manually close each group of burning guns on site simultaneously, and then ash accumulated in the burning guns is cleaned, so that the aim of cleaning the ash accumulated in the burning guns is fulfilled. The method has the problems of complicated operation, low operation efficiency, gun burning possibly caused by high temperature in the furnace and the like.
Therefore, the device or the method for automatically cleaning the ash of the liquid crystal substrate glass combustion system, which can effectively solve the ash cleaning problem and has high operation efficiency, has positive significance.
Disclosure of Invention
In order to solve the technical problems, the embodiment of the invention provides an automatic ash removal liquid crystal substrate glass combustion system and an ash removal method, in the ash removal process, an operator does not need to close a burning gun on site, and the ash removal efficiency is high.
On one hand, the liquid crystal substrate glass combustion system capable of automatically cleaning ash disclosed by the embodiment of the invention comprises: the device comprises a burning gun, an oxygen supply pipeline, a natural gas supply pipeline, an ash removal gas supply pipeline and a control system, wherein the oxygen supply pipeline, the natural gas supply pipeline and the ash removal gas supply pipeline are respectively communicated to the burning gun;
an oxygen actuator is arranged on the oxygen supply pipeline, a natural gas actuator is arranged on the natural gas supply pipeline, and a control electromagnetic valve is arranged on the ash removal gas supply pipeline;
the control system controls the oxygen actuator, the natural gas actuator and the control solenoid valve.
Furthermore, a first air inlet and a second air inlet are arranged on the burning gun, the oxygen supply pipeline is communicated to the first air inlet, the natural gas supply pipeline is communicated to the second air inlet, an ash removal gas inlet is arranged on the oxygen supply pipeline, and the ash removal gas supply pipeline is communicated to the ash removal gas inlet.
Further, a one-way valve is arranged on the ash removal gas supply pipeline close to the ash removal gas inlet.
Further, a manual stop valve is arranged on the ash removal gas supply pipeline.
Further, a flow meter is arranged on the ash removal gas supply pipeline.
Further, the other end of the deashing gas supply pipeline is communicated with a cooling compressed air storage tank.
Furthermore, a cooling module, a starting module and an automatic module are arranged on the control system;
the cooling module is used for closing the oxygen actuator and the natural gas actuator and opening the control solenoid valve simultaneously;
the starting module is used for starting the oxygen actuator and the natural gas actuator and closing the control electromagnetic valve at the same time;
the automation module is used for adjusting the flow rates of the oxygen actuator and the natural gas actuator.
On the other hand, the embodiment of the invention also discloses an automatic ash removal method for the liquid crystal substrate glass combustion system, which comprises the following steps:
firstly, conveying deashing gas to a burning gun for first deashing while stopping conveying oxygen and natural gas to the burning gun;
and step two, after the first preset time, stopping conveying the ash removal gas to the burning gun, and simultaneously conveying oxygen and natural gas to the burning gun for secondary ash removal.
Further, still include:
and step three, after the second ash removal is finished, adjusting the flow of the oxygen and the natural gas conveyed to the burning gun.
Further, the first dust cleaning operation is realized by controlling a cooling module in the system;
the secondary ash removal operation is realized through a starting module of the control system;
the adjustment of the oxygen and natural gas flow is realized through an automatic module of the control system.
Further, the control system is arranged on the control terminal.
By adopting the technical scheme, the invention at least has the following beneficial effects:
according to the invention, by arranging the ash removal gas supply pipeline and controlling each pipeline through the control system, the ash removal work of each group of burning guns can be rapidly completed, the workload can be effectively reduced, the ash removal efficiency is increased, the risk that the burning guns are damaged by high temperature in the pool furnace during the flameout period of the burning guns is avoided, the potential safety hazard is reduced, and the production stability of a production line is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
As shown in fig. 1, some embodiments of the present invention disclose an automatic ash removal liquid crystal substrate glass combustion system, comprising: the device comprises a burning gun 9, an oxygen supply pipeline 1, a natural gas supply pipeline 3, an ash removal gas supply pipeline 2 and a control system, wherein the oxygen supply pipeline 1, the natural gas supply pipeline 3 and the ash removal gas supply pipeline 2 are respectively communicated to the burning gun 9; an oxygen actuator 61 is arranged on the oxygen supply pipeline 1, a natural gas actuator 62 is arranged on the natural gas supply pipeline 3, and a control electromagnetic valve 7 is arranged on the ash removal gas supply pipeline 2; the control system controls the oxygen actuator 61, the natural gas actuator 62 and the control solenoid valve 7.
This embodiment is through setting up deashing gas supply pipe 2, through each pipeline of control system control, the deashing work of each group of burning rifle 9 of completion that not only can be quick can also effectively reduce work load, increases deashing efficiency, has avoided the risk of burning rifle 9 in the pool furnace high temperature damage during burning rifle 9 is flame-out simultaneously, reduces the emergence of potential safety hazard to promote production line production stability.
In some preferred embodiments of the present invention, the burning torch 9 is provided with a first gas inlet and a second gas inlet, the oxygen supply pipeline 1 is communicated with the first gas inlet, the natural gas supply pipeline 3 is communicated with the second gas inlet, the oxygen supply pipeline 1 is provided with an ash removal gas inlet, and the ash removal gas supply pipeline 2 is communicated with the ash removal gas inlet. This embodiment lets in to burning rifle 9 through oxygen pipeline through the deashing gas pipeline, has solved the problem that burning rifle 9 air inlets is few, has guaranteed the security simultaneously.
Some embodiments of the present invention are based on the above embodiments, wherein the ash removal gas supply pipe 2 is provided with a one-way valve 8 near the ash removal gas inlet. By arranging the check valve 8, the condition that oxygen cannot enter the ash removing gas pipeline is ensured.
In some embodiments of the present invention, in order to further ensure the safety, a manual stop valve 4 is arranged on the ash removal gas supply pipeline 2. The duct is closed manually when required.
In some embodiments of the present invention, a flow meter 5 is further disposed on the ash removal gas supply pipeline 2 to ensure monitoring of the ash removal gas supply flow.
In some embodiments of the present invention, as shown in fig. 2, the control system is provided with a cooling module, a starting module, and an automatic module;
wherein the cooling module is used for closing the oxygen actuator 61 and the natural gas actuator 62 and simultaneously opening the control solenoid valve 7;
the starting module is used for opening the oxygen actuator 61 and the natural gas actuator 62 and closing the control electromagnetic valve 7 at the same time;
the automation module is used to adjust the flow rates of the oxygen actuator 61 and the natural gas actuator 62.
When the device is used, the ash removal control is realized through the three modules. The remote control authority in the combustion disc control cabinet 11 in the prior art can be led into the control terminal 12 through a signal wire, and the control module 13 is manufactured in the control system, so that the remote control of the terminal is realized.
Some embodiments of the invention disclose an automatic ash removal method for a liquid crystal substrate glass combustion system, which comprises the following steps:
firstly, conveying deashing gas to a burning gun 9 while stopping conveying oxygen and natural gas to the burning gun 9 for first deashing;
and step two, after the first preset time, stopping conveying the ash removal gas to the burning gun 9, and simultaneously conveying oxygen and natural gas to the burning gun 9 to perform secondary ash removal.
Preferably, after the third step of secondary ash removal, the flow of the oxygen and the natural gas delivered to the burning gun 9 is adjusted.
In the above embodiment, each step may be automatically controlled in a control system to achieve ash removal and flow rate adjustment, the control system may be disposed at the control terminal 12, and a worker may perform an operation at the control terminal 12 to achieve ash removal, specifically, perform a first ash removal operation through a cooling module in the control system; the secondary ash removal operation is realized through a starting module of the control system; the adjustment of the oxygen and natural gas flow is realized through an automatic module of the control system. The deashing gas can be cooled compressed air.
Example 1
The liquid crystal substrate glass combustion system capable of automatically cleaning ash disclosed in the embodiment comprises a cooling compressed air pipeline, a first oxygen supply pipeline 1, a second oxygen supply pipeline 1, a first natural gas supply pipeline 3, a second natural gas supply pipeline 3, a first burning gun 9, a second burning gun 9 and a combustion furnace 10, wherein the first burning gun 9 and the second burning gun 9 are installed on the combustion furnace 10, the first oxygen supply pipeline 1 and the first natural gas supply pipeline 3 are respectively communicated to the first burning gun 9, and the second oxygen supply pipeline 1 and the second natural gas supply pipeline 3 are respectively communicated to the second burning gun 9; the first oxygen supply pipeline 1 and the second oxygen supply pipeline 1 are respectively provided with an ash removal gas inlet, the cooling compressed air pipeline is connected with the two ash removal gas inlets, and the connecting ports are respectively provided with a one-way valve 8. And the cooling compressed air pipeline is also provided with a control electromagnetic valve 7, a flow meter 5 and a manual stop valve 4. The two natural gas supply pipelines 3 are respectively provided with a natural gas actuator 62, and the two oxygen supply pipelines 1 are respectively provided with an oxygen actuator 61. The cooling compressed air pipeline is added on the combustion disc to protect the burning gun 9 and purge and clean ash. Guarantee combustion system normal operating period through setting up two check valves 8, the unable oxygen pipeline that gets into of cooling compressed air keeps the unable oxygen pipeline that gets into of cooling compressed air simultaneously, debugging equipment flexibility and gas tightness before the installation. The cooling compressed air pipeline is used for cooling the burning torch 9 and supplying compressed air for ash cleaning operation of the burning torch 9.
Meanwhile, as shown in fig. 2, a remote control terminal 12, i.e., a DCS control computer terminal, is provided, a control module 13 is provided in a control system of the control terminal 12, and the oxygen actuator 61, the natural gas actuator 62 and the control solenoid valve 7 are controlled by the control module 13. Specifically, the control module 13 is provided with a cooling button 14, a starting button 15 and an automatic button 16 for automatic ash cleaning operation of the burning gun 9, which correspond to the cooling module, the starting module and the automatic module respectively.
After the natural gas actuator 62 or the oxygen actuator 61 is disconnected, the cooling compressed air control electromagnetic valve 7 is automatically opened, and cooling compressed air enters the oxygen supply pipeline 1 through the two one-way valves 8 and reaches the pool furnace burning gun 9 through the oxygen supply pipeline 1 to complete cooling and ash removal operation. The control solenoid valve 7 is used to perform the control function of the compressed air pipeline. A combustion system control authority module, namely a control module 13 is added to a DCS control computer terminal, so that the combustion system control authority can be implemented in the DCS control computer terminal, and the automatic ash removal operation of the burning gun 9 is completed by operating a cooling button 14, a starting button 15 and an automatic button 16 on the DCS control computer terminal.
In this embodiment, the control terminal 12 adds a control authority, and according to the setting of the combustion panel control program, the remote control authority in the combustion panel control cabinet 11 is led into the DCS control computer terminal through a signal line, and the control module 13 is manufactured to realize the remote control authority of the computer DCS.
Specifically, the embodiment is that the authority of remote control of a computer terminal is controlled through a DCS, the oxygen actuator 61 and the natural gas pipeline actuator of the selected burning gun 9 are automatically closed through the cooling button 14 on the control module 13, the cooling compressed air electromagnetic valve pipeline is automatically started, the cooling compressed air enters the oxygen pipeline through the two check valves 8, the cooling and dust removing operation is completed from the oxygen pipeline to the burning gun 9 of the pool furnace, and the dust removing operation of the cooling compressed air for the first time is realized by utilizing the change of instantaneous air flow. After 10 seconds, the control module 13 starts the gun 9 starting button 15, the selected gun 9 oxygen actuator 61 and the selected natural gas pipeline actuator are automatically opened, the oxygen supply pipeline 1 and the natural gas supply pipeline 3 reach the pool furnace gun 9, the effect of secondary oxygen and natural gas ash removal is realized by using instantaneous airflow change, the gun 9 automatic button 16 is burnt through the control module 13, the internal relevant parameters of the combustion system are automatically restored to normal levels, and the ash removal operation is completed. Through the twice deashing of cooling compressed air and oxygen natural gas, realize the function of the best 9 deashing effects of burning gun to can guarantee combustion system safety and stability operation.
It should be particularly noted that the various components or steps in the above embodiments can be mutually intersected, replaced, added or deleted, and therefore, the combination formed by the reasonable permutation and combination conversion shall also belong to the protection scope of the present invention, and the protection scope of the present invention shall not be limited to the embodiments.
The above is an exemplary embodiment of the present disclosure, and the order of disclosure of the above embodiment of the present disclosure is only for description and does not represent the merits of the embodiment. It should be noted that the discussion of any embodiment above is exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to those examples, and that various changes and modifications may be made without departing from the scope, as defined in the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. An automatic deashing liquid crystal substrate glass combustion system is characterized by comprising: the device comprises a burning gun, an oxygen supply pipeline, a natural gas supply pipeline, an ash removal gas supply pipeline and a control system, wherein the oxygen supply pipeline, the natural gas supply pipeline and the ash removal gas supply pipeline are respectively communicated to the burning gun;
an oxygen actuator is arranged on the oxygen supply pipeline, a natural gas actuator is arranged on the natural gas supply pipeline, and a control electromagnetic valve is arranged on the ash removal gas supply pipeline;
the control system controls the oxygen actuator, the natural gas actuator and the control solenoid valve.
2. The system of claim 1, wherein the lance is provided with a first gas inlet and a second gas inlet, the oxygen supply conduit is connected to the first gas inlet, the natural gas supply conduit is connected to the second gas inlet, the oxygen supply conduit is provided with an ash removal gas inlet, and the ash removal gas supply conduit is connected to the ash removal gas inlet.
3. The system of claim 1, wherein the ash removal gas supply conduit is provided with a one-way valve proximate the ash removal gas inlet.
4. The system of claim 1, wherein the ash removal gas supply conduit is provided with a manual shut-off valve and/or a flow meter.
5. The system of claim 1, wherein the ash removal gas supply conduit communicates at its other end with a cooled compressed air storage tank.
6. The system of claim 1, wherein the control system is provided with a cooling module, a starting module and an automatic module;
the cooling module is used for closing the oxygen actuator and the natural gas actuator and opening the control solenoid valve simultaneously;
the starting module is used for starting the oxygen actuator and the natural gas actuator and closing the control electromagnetic valve at the same time;
the automation module is used for adjusting the flow rates of the oxygen actuator and the natural gas actuator.
7. An automatic ash removal method for a liquid crystal substrate glass combustion system is characterized by comprising the following steps:
firstly, conveying deashing gas to a burning gun for first deashing while stopping conveying oxygen and natural gas to the burning gun;
and step two, after the first preset time, stopping conveying the ash removal gas to the burning gun, and simultaneously conveying oxygen and natural gas to the burning gun for secondary ash removal.
8. The method of claim 7, further comprising:
and step three, after the second ash removal is finished, adjusting the flow of the oxygen and the natural gas conveyed to the burning gun.
9. The method of claim 7, wherein the first ash removal operation is accomplished by controlling a cooling module in the system;
the secondary ash removal operation is realized through a starting module of the control system;
the adjustment of the oxygen and natural gas flow is realized through an automatic module of the control system.
10. The method of claim 9, wherein the control system is disposed at the control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910983432.1A CN110590129A (en) | 2019-10-16 | 2019-10-16 | Automatic ash removal liquid crystal substrate glass combustion system and ash removal method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910983432.1A CN110590129A (en) | 2019-10-16 | 2019-10-16 | Automatic ash removal liquid crystal substrate glass combustion system and ash removal method |
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| CN110590129A true CN110590129A (en) | 2019-12-20 |
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| CN201910983432.1A Pending CN110590129A (en) | 2019-10-16 | 2019-10-16 | Automatic ash removal liquid crystal substrate glass combustion system and ash removal method |
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| JP2002286892A (en) * | 2001-03-27 | 2002-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Indirect heating device of glass melting furnace |
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| CN109513283A (en) * | 2017-09-19 | 2019-03-26 | 萍乡市普天高科实业有限公司 | For glass furnace fume dedusting filter and filter method |
| CN209292198U (en) * | 2018-09-19 | 2019-08-23 | 彩虹（合肥）光伏有限公司 | A kind of glass melting furnace combustion rifle coke cleaning structure |
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2019
- 2019-10-16 CN CN201910983432.1A patent/CN110590129A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6164956A (en) * | 1997-02-11 | 2000-12-26 | Ge Energy & Environmental Research Corporation | System and method for removing ash deposits in a combustion device |
| JP2002286892A (en) * | 2001-03-27 | 2002-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Indirect heating device of glass melting furnace |
| CN202392807U (en) * | 2011-12-30 | 2012-08-22 | 中冶长天国际工程有限责任公司 | Burner system capable of preventing tar from blocking burner |
| KR20160124005A (en) * | 2015-04-17 | 2016-10-26 | 아즈빌주식회사 | Combustion control apparatus and combustion system |
| CN109513283A (en) * | 2017-09-19 | 2019-03-26 | 萍乡市普天高科实业有限公司 | For glass furnace fume dedusting filter and filter method |
| CN107940462A (en) * | 2017-12-04 | 2018-04-20 | 神雾科技集团股份有限公司 | One kind purging piecing devices and commutation purge system |
| CN209292198U (en) * | 2018-09-19 | 2019-08-23 | 彩虹（合肥）光伏有限公司 | A kind of glass melting furnace combustion rifle coke cleaning structure |
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Application publication date: 20191220 |
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