阅读说明：本技术 一种盖板玻璃搅拌棒清洗的方法 (A kind of method of cover-plate glass stirring rod cleaning ) 是由 张军锋 于 2019-07-25 设计创作，主要内容包括：本发明公开了一种盖板玻璃搅拌棒清洗的方法,1.在盖板玻璃正常搅拌过程中,将搅拌棒由正常搅拌转速逐级调整至19±5转/分钟,保持15±5分钟；2.由19±5转/分钟逐级调整至0转/分钟,保持19±5分钟；3.将搅拌棒搅拌方向反转,由0转/分钟逐级调整至19±5转/分钟,保持15±5分钟；4.由19±5转/分钟逐级调整至0转/分钟,保持20±5分钟；5.将搅拌棒搅拌方向反转,由0转/分钟逐级调整至19±5转/分钟,保持15±5分钟；6.将搅拌棒转速调整至盖板玻璃搅拌正常转速；每次调整1转,间隔时间为15±5秒。降低了线体初期玻璃液面液卷入的气泡,减少铂金类欠点的发生概率,提高了盖板玻璃的生产质量。(The invention discloses a kind of methods of cover-plate glass stirring rod cleaning, and 1. in the normal whipping process of cover-plate glass, and stirring rod is adjusted step by step by normal speed of agitator to 19 ± 5 revs/min, are kept for 15 ± 5 minutes；2. being adjusted step by step by 19 ± 5 revs/min to 0 rev/min, kept for 19 ± 5 minutes；3. stirring rod mixing direction is inverted, adjusted step by step by 0 rev/min to 19 ± 5 revs/min, is kept for 15 ± 5 minutes；4. being adjusted step by step by 19 ± 5 revs/min to 0 rev/min, kept for 20 ± 5 minutes；5. stirring rod mixing direction is inverted, adjusted step by step by 0 rev/min to 19 ± 5 revs/min, is kept for 15 ± 5 minutes；6. stirring rod revolving speed is adjusted to cover-plate glass and stirs rated speed；1 turn of adjustment every time, interval time are 15 ± 5 seconds.The bubble that wire body initial stage metal level liquid is involved in is reduced, the probability of happening that platinum class owes point is reduced, improves the quality of production of cover-plate glass.)

1. a kind of method of cover-plate glass stirring rod cleaning, which is characterized in that include the following steps；

Step 1, in the normal whipping process of cover-plate glass, by stirring rod by normal speed of agitator adjust step by step to 19 ± 5 turns/ Minute, it is kept for 15 ± 5 minutes under 19 ± 5 revs/min of revolving speed；

Step 2 is adjusted step by step by 19 ± 5 revs/min to 0 rev/min, is stopped stirring and is kept for 19 ± 5 minutes；

Step 3 inverts stirring rod mixing direction, is adjusted step by step by 0 rev/min to 19 ± 5 revs/min, at 19 ± 5 revs/min It is kept for 15 ± 5 minutes under the revolving speed of clock；

Step 4 is adjusted step by step by 19 ± 5 revs/min to 0 rev/min, is stopped stirring and is kept for 20 ± 5 minutes；

Step 5 inverts stirring rod mixing direction, is adjusted step by step by 0 rev/min to 19 ± 5 revs/min, at 19 ± 5 revs/min It is kept for 15 ± 5 minutes under the revolving speed of clock；

Stirring rod revolving speed is adjusted to cover-plate glass after the completion of step 5 and stirs rated speed by step 6；

1 turn of adjustment every time, interval time are 15 ± 5 seconds.

2. a kind of method of cover-plate glass stirring rod cleaning according to claim 1, which is characterized in that step 1 to step Five be a cycle, and cleaning process recycled at least six periods.

3. a kind of method of cover-plate glass stirring rod cleaning according to claim 1, which is characterized in that new in cover-plate glass Wire body initial level in place after or wire body when bubble and platinum class occur and owing point, carry out the cleaning of a stirring rod.

4. a kind of method of cover-plate glass stirring rod cleaning according to claim 1, which is characterized in that stirring rod just Before often stirring goes to cleaning, 20 ± 10 DEG C of stirred tank temperature are improved, reduces by 10 ± 5mm of stirring rod height.

5. a kind of method of cover-plate glass stirring rod cleaning according to claim 4, which is characterized in that when tank furnace carrys out material temperature There is change dramatically in degree, constant temperature 0.5 hour or more for causing cooling section and feeder channel, and is greater than cooling section and feeder channel 0.5 DEG C -1 DEG C of desired temperature, and when extraction is higher than when normal extraction 5kg, reduction circuit cooling section and feeder channel return Pipeline equipment loading current sets the temperature of cooling section and feeder channel until Current Temperatures occur declining and when electric current smooth decreasing Definite value is revised as actual value, when extraction is lower than normal extraction 5kg, improves circuit cooling section and feeder channel circuit units Loading current, when rising occur in Current Temperatures and electric current rises steady, by the desired temperature of cooling section and feeder channel by Gradually it is adjusted to initial setting value.

6. a kind of method of cover-plate glass stirring rod cleaning according to claim 5, which is characterized in that when tank furnace carrys out material temperature There is change dramatically in degree, constant temperature 0.5 hour or more for causing cooling section and feeder channel, and is greater than cooling section and feeder channel 1 DEG C of desired temperature or more, and when temperature is still within not controlled state, using following steps；

Step 1, molding procedure gradually decrease the heating power of heating rod, carry out the preparation of Muffle furnace promptly exited, Zhi Daowen Degree is adjusted to the desired temperature of cooling section and feeder channel；

Step 2 persistently reduces the cooling wind valve opening on cooling section top, if cooling section power is lower than 12kw, opens channel Skylight, and channel increases convection flow fan；

Step 3 persistently reduces the cooling wind valve opening on cooling section top, if cooling section power is lower than 8kw, opens cooling Section answers abrupt wind and removes feeder sleeve heat preservation, opens feeder sleeve cooling wind；

Step 4, persistently reduce cooling section top cooling wind valve opening, if cooling section power be lower than 5kw, temperature not by In the case where control, Muffle furnace is exited.

7. a kind of method of cover-plate glass stirring rod cleaning according to claim 1, which is characterized in that stirring rod cleaning Before, warming-up section electric current needs to be greater than 4500A, is less than 5600A；It clarifies one section of electric current to need to be greater than 4000A, is less than 5000A；Clarification Two sections of electric currents need to be greater than 3000A, are less than 4000A；Temperature descending section power needs to be greater than 15kw；Stirred tank power needs are greater than 30kw；Cooling section power needs to be greater than 25kw；Feeder channel power needs to be greater than 5kw；Veneer weight needs to set center in veneer Within the scope of ± the 100g of value.

Technical field

The invention belongs to cover-plate glass production fields, are related to a kind of method of cover-plate glass stirring rod cleaning.

Background technique

In cover-plate glass manufacture, stirring rod is to realize the capital equipment of homogenization of glass, and main function is the equal of realization glass Change, reduces the incidence of striped in glassware, in wire body operation beginning, since stirring rod just starts to come into operation, stirring rod is transported In higher running speed and running temperature, stirring rod does not infiltrate thoroughly row, easily generates a large amount of bubble, while high revolving speed feelings Stirring rod is caused to wear and be corroded under condition, is generated platinum class and is owed point, impacts to the quality of glass metal.

Summary of the invention

It is an object of the invention to overcome the above-mentioned prior art, a kind of side of cover-plate glass stirring rod cleaning is provided Method is stirred the cleaning of stick under the premise of not influencing cover-plate glass and normally producing, and reduces bubble and platinum class owes the hair of point Raw probability, improves the quality of production of cover-plate glass, reduces the abrasion of stirring rod.

In order to achieve the above objectives, the present invention is achieved by the following scheme:

A kind of method of cover-plate glass stirring rod cleaning, includes the following steps；

Step 1 is adjusted stirring rod step by step to 19 ± 5 by normal speed of agitator in the normal whipping process of cover-plate glass Rev/min, it is kept for 15 ± 5 minutes under 19 ± 5 revs/min of revolving speed；

Step 2 is adjusted step by step by 19 ± 5 revs/min to 0 rev/min, is stopped stirring and is kept for 19 ± 5 minutes；

Step 3 inverts stirring rod mixing direction, is adjusted step by step by 0 rev/min to 19 ± 5 revs/min, 19 ± 5 Rev/min revolving speed under kept for 15 ± 5 minutes；

Step 4 is adjusted step by step by 19 ± 5 revs/min to 0 rev/min, is stopped stirring and is kept for 20 ± 5 minutes；

Step 5 inverts stirring rod mixing direction, is adjusted step by step by 0 rev/min to 19 ± 5 revs/min, 19 ± 5 Rev/min revolving speed under kept for 15 ± 5 minutes；

Stirring rod revolving speed is adjusted to cover-plate glass after the completion of step 5 and stirs rated speed by step 6；

1 turn of adjustment every time, interval time are 15 ± 5 seconds.

Preferably, step 1 to step 5 is a cycle, and cleaning process recycled at least six periods.

Preferably, when rear or wire body bubble and at platinum class deficient to the new wire body initial level of cover-plate glass occurs in place, into The cleaning of stirring rod of row.

Preferably, before the normal stirring of stirring rod goes to cleaning, 20 ± 10 DEG C of stirred tank temperature is improved, stirring rod is reduced Highly 10 ± 5mm.

Further, when there is change dramatically in tank furnace supplied materials temperature, constant temperature 0.5 hour for causing cooling section and feeder channel More than, and it is greater than 0.5 DEG C -1 DEG C of desired temperature of cooling section and feeder channel, and when extraction is higher than in normal extraction 5kg When, circuit cooling section and feeder channel circuit units loading current are reduced, until Current Temperatures occur declining and electric current smooth decreasing When, the desired temperature of cooling section and feeder channel is revised as actual value, when extraction is lower than normal extraction 5kg, is mentioned High circuit cooling section and feeder channel circuit units loading current will when rising occur in Current Temperatures and electric current rises steady The desired temperature of cooling section and feeder channel is gradually adjusted to initial setting value.

Further, when change dramatically occurs in tank furnace supplied materials temperature, cause the constant temperature 0.5 of cooling section and feeder channel small When more than, and be greater than 1 DEG C of desired temperature or more of cooling section and feeder channel, and when temperature is still within not controlled state, Using following steps；

Step 1, molding procedure gradually decrease the heating power of heating rod, carry out the preparation of Muffle furnace promptly exited, directly The desired temperature of cooling section and feeder channel is adjusted to temperature；

Step 2 persistently reduces the cooling wind valve opening on cooling section top, if cooling section power is lower than 12kw, opens Channel skylight, and channel increases convection flow fan；

Step 3 persistently reduces the cooling wind valve opening on cooling section top, if cooling section power is lower than 8kw, opens Cooling section answers abrupt wind and removes feeder sleeve heat preservation, opens feeder sleeve cooling wind；

Step 4 persistently reduces the cooling wind valve opening on cooling section top, if cooling section power is lower than 5kw, temperature In uncontrolled situation, Muffle furnace is exited.

Preferably, before stirring rod cleaning, warming-up section electric current needs to be greater than 4500A, is less than 5600A；Clarifying one section of electric current needs It is greater than 4000A, is less than 5000A；It clarifies two sections of electric currents to need to be greater than 3000A, is less than 4000A；Temperature descending section power needs are greater than 15kw；Stirred tank power needs to be greater than 30kw；Cooling section power needs to be greater than 25kw；Feeder channel power needs to be greater than 5kw；Veneer Weight needs within the scope of ± the 100g of veneer setting central value.

Compared with prior art, the invention has the following advantages:

The present invention is by adjusting revolving speed and the duration of stirring rod in the normal whipping process of cover-plate glass, according to stirring The actual motion limit velocity setting speed limiting value of stick is mixed, the viscosity of glass metal of stirring rod position is improved, is conducive to stir It mixes that the attachment on stick falls off and stirring rod adequately soaks, stirring rod is cleaned by glass metal, at the beginning of reducing wire body The bubble that phase metal level liquid is involved in, while the probability of happening that platinum class owes point is reduced, improve the quality of production of cover-plate glass.

Further, after after cover-plate glass is per normal stirring to new wire body initial level in place or when bubble occurs in wire body, The cleaning for carrying out a stirring rod effectively prevent the later period bubble and the deficient point of platinum class occur.

Further, i.e., before cleaning, stirring rod height is reduced, to improve cleaning effect, stirred tank temperature is improved, with drop The glass viscosity of attachment and reduction stirred tank in low stirring rod, improves cleaning effect and reduces high viscosity to the damage of stirring rod Wound.

Further, when anomalous variation occur in extraction and temperature, lead to control loading current, reduce temperature, Zhi Daowen Degree is adjusted to the desired temperature of cooling section and feeder channel, prevents extraction putty out of control, destroys the operation of wire body.

Further, if temperature, which still persistently increases, is in not controlled state, by emergency measure step by step, temperature is carried out Control if being still unable to control, is exited Muffle furnace, is kept away until temperature is adjusted to the desired temperature of cooling section and feeder channel Exempt from further out of control.

Detailed description of the invention

Fig. 1 is the cleaning process figure of stirring rod of the present invention.

Specific embodiment

The invention will be described in further detail with reference to the accompanying drawing:

The cleaning of stirring rod is divided into three aspects, first is that needing to confirm the safety margin of technique before cleaning, confirms every ginseng Whether number is reasonable, it is ensured that stablizing in the process is controlled.Second is that specific cleaning process.Third is that the glass in stirring rod cleaning process Glass liquid extraction and technological temperature control.

Firstly, warming-up section electric current needs to be greater than 4500A before stirring rod cleaning, it is less than 5600A；Clarify one section of electric current needs Greater than 4000A, it is less than 5000A；It clarifies two sections of electric currents to need to be greater than 3000A, is less than 4000A；Temperature descending section power needs are greater than 15kw；Stirred tank power needs to be greater than 30kw；Cooling section power needs to be greater than 25kw；Feeder channel power needs to be greater than 5kw；Veneer Weight needs within the scope of ± the 100g of veneer setting central value.The pid parameter in each circuit is set, wherein P is 10- 20, I 1-3min, D 0-1min, to improve the response speed of automatic control system, to improve the glass in whipping process Liquid extraction and technological temperature control speed.

Secondly, as shown in Figure 1, being the specific whipping process of stirring rod, comprising the following steps:

Step 1 is adjusted stirring rod step by step to 19 ± 5 by normal speed of agitator in the normal whipping process of cover-plate glass Rev/min, it is kept for 15 ± 5 minutes under 19 ± 5 revs/min of revolving speed.

Step 2 is adjusted step by step by 19 ± 5 revs/min to 0 rev/min, is stopped stirring and is kept for 19 ± 5 minutes.

Step 3 inverts stirring rod mixing direction, is adjusted step by step by 0 rev/min to 19 ± 5 revs/min, 19 ± 5 Rev/min revolving speed under kept for 15 ± 5 minutes.

Step 4 is adjusted step by step by 19 ± 5 revs/min to 0 rev/min, is stopped stirring and is kept for 20 ± 5 minutes.

Step 5 inverts stirring rod mixing direction, is adjusted step by step by 0 rev/min to 19 ± 5 revs/min, 19 ± 5 Rev/min revolving speed under kept for 15 ± 5 minutes.

Step 6, step 1 to step 5 are a cycle, and cleaning process recycled at least six periods, 1 turn of adjustment every time, Interval time is 15 ± 5 seconds.

Stirring rod revolving speed is adjusted to cover-plate glass after completing the last one period and stirs rated speed by step 7.

Before the normal stirring of stirring rod goes to cleaning, 20 ± 10 DEG C of stirred tank temperature are improved, stirring rod height 10 is reduced ±5mm。

It is initial to every new wire body per normal stirring in cover-plate glass, liquid level in place when or the later period find occur this When type bubble, the cleaning of a stirring rod is carried out, the wire body production phase is effectively prevent to occur the bubble of this type for a long time.

Finally, to glass metal extraction and technological temperature control in stirring rod cleaning process.

Since the sustained continuous of revolving speed changes in cleaning process, stirring rod positive and negative rotation and the variation of revolving speed are to the glass in channel Glass liquid stream impacts, so that the either large or small variation of temperature and extraction is caused, when there is anomalous variation in extraction and temperature, It needs to take emergency measures, prevents extraction putty out of control, destroy the operation of wire body.Extraction control in stirring rod cleaning process System is by two aspect of equipment PID control and manual control.

The PID adjustment of equipment is mainly set by the pid parameter of early-stage preparations.

Manual control includes following procedure:

1, when circuit cooling section and feeder channel temperature or veneer weight continue it is higher can not be controlled when, if tank furnace supplied materials temperature There is change dramatically, constant temperature 0.5 hour or more for causing cooling section and feeder channel, and is greater than the temperature of cooling section and feeder channel 0.5 DEG C -1 DEG C of setting value of degree:

Circuit cooling section and feeder channel circuit units loading current are reduced, to manually reduce circuit cooling section and feeder channel Temperature, until Current Temperatures occur declining and when electric current smooth decreasing, the desired temperature moderate modification of cooling section and feeder channel, The temperature settings of cooling section and feeder channel are revised as actual value, prevents setting value and actual value difference big, causes electric current big Amplitude adjustment, when veneer weighs less than normal extraction 5kg, DCS improves circuit cooling section and confession according to temperature difference automatically Hopper circuit units loading current, elevates the temperature so as to adjust temperature, until Current Temperatures occur rising and on electric current it is peaceful When steady, the modification of the desired temperature of cooling section and feeder channel is carried out, the desired temperature of cooling section and feeder channel is gradually adjusted It saves to initial setting value.Extraction can be controlled within effective range.

2, when there is change dramatically in tank furnace supplied materials temperature, constant temperature 0.5 hour or more for causing cooling section and feeder channel, And when being greater than 1 DEG C of desired temperature of cooling section and feeder channel:

If the PID adjustment of automatic control loop is not in time, temperature descending section, cooling section and feeder channel control loop are adjusted in time and is opened Degree determines the size of adjustment aperture according to the variable quantity of temperature.

A, when according to the situation of change of temperature, feeder sleeve and 1 DEG C high compared with setting value cooling section Current Temperatures, and temperature is still In not controlled state, molding procedure gradually decreases the heating power of heating rod, carries out the preparation of Muffle furnace promptly exited, and prevents The only excessive blocking Muffle furnace of glass flow quantity.

B, the cooling wind valve opening on cooling section top persistently reduces, and when cooling section power is lower than 12kw, opens channel day Window and channel increase convection flow fan.

C, the cooling wind valve opening on cooling section top persistently reduces, and when cooling section power is lower than 8kw, opens cooling section and answers Abrupt wind and dismounting feeder sleeve heat preservation, open feeder sleeve cooling wind.

D, the cooling wind valve opening on cooling section top persistently reduces, and when cooling section power is lower than 5kw, temperature is uncontrolled In the case of, Muffle furnace exits.

Electric current and voltage are variable, are controlled so choosing power as comprehensive parameters.

The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention Protection scope within.