Glass electric smelting furnace stockpile form management system

Abstract

The application provides a glass electric furnace material pile form control system, the glass electric furnace has a material stacking area, a first feeding port and a second feeding port located at the end of the material stacking area, and a discharge port located at the end of the other end of the material stacking area; the material pile form control system comprises a first feeding mechanism for feeding through the first feeding port, a second feeding mechanism for feeding through the second feeding port, a monitoring unit and a control unit; the monitoring unit is used for monitoring the voltage on both sides of the material stacking area; the control unit controls the feeding rate of the first feeding mechanism and the second feeding mechanism according to the monitoring data of the monitoring unit, so that the feeding rate of the first feeding mechanism or the second feeding mechanism located on the side with lower voltage is greater than the feeding rate on the side with higher voltage. The application adjusts the feeding amount on both sides of the material pushing area to make the voltage on both sides of the material stacking area consistent, so as to guarantee the stability and continuity of the material pile form, and avoid the situation that the material is broken or unevenly stacked.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal glass manufacturing technology, and more specifically to a glass electric melting furnace material pile shape control system. Background Technology

[0002] The manufacturing process of TFT glass is a highly complex and delicate art. During manufacturing, the raw material (glass powder) is fed into the furnace by a feeding mechanism, forming a stockpile. Glass furnaces typically employ an electric melting strategy, using a hybrid electric heating approach. The upper part uses oxy-fuel combustion heating technology, while the lower part utilizes multiple pairs of electrodes for heating, ensuring the glass powder is fully and completely melted. In the melting stage, the shape of the stockpile plays a crucial role; it serves not only as a storage and preheating area for the glass raw material but also as an important site for the silicate sintering process and the removal of salt gases.

[0003] Therefore, the management of the material pile shape is crucial in the production process of glass electric melting furnaces: on the one hand, it is necessary to ensure the stability and continuity of the material pile to avoid material interruption or uneven stacking; on the other hand, it is also necessary to adjust the length and orientation of the material pile according to production needs and glass quality requirements. Summary of the Invention

[0004] In order to solve the technical problems existing in the background art, the present invention proposes a glass electric melting furnace material pile shape control system.

[0005] The present invention proposes a glass electric melting furnace material pile shape control system, wherein the glass electric melting furnace has a first electrode and a second electrode arranged opposite to each other, and a material pile area located between the first electrode and the second electrode; the glass electric melting furnace has a feed port at one end of the material pile area and a discharge port at the other end of the material pile area, the feed port including a first feed port and a second feed port respectively located on both sides of the central axis of the material pile area;

[0006] The stockpile shape control system includes a feeding mechanism for conveying materials to the stockpile area, as well as a monitoring unit and a control unit;

[0007] The feeding mechanism includes a first feeding mechanism and a second feeding mechanism. The first feeding mechanism feeds material through a first inlet, and the second feeding mechanism feeds material through a second inlet.

[0008] The monitoring unit is used to monitor the voltage on both sides of the stockpile area;

[0009] The control unit is used to acquire monitoring data from the monitoring unit and control the feeding rate of the first feeding mechanism and the second feeding mechanism according to the monitoring data, so that the feeding rate of the first feeding mechanism or the second feeding mechanism located on the lower voltage side is greater than the feeding rate on the higher voltage side.

[0010] Preferably, when the monitoring data of the monitoring unit shows that the voltage on the side where the first feeding mechanism is located is lower than the voltage on the side where the second feeding mechanism is located, the control unit controls the feeding rate of the first feeding mechanism to increase or controls the feeding rate of the second feeding mechanism to decrease; when the monitoring data of the monitoring unit shows that the voltage on the side where the second feeding mechanism is located is lower than the voltage on the side where the first feeding mechanism is located, the control unit controls the feeding rate of the second feeding mechanism to increase or controls the feeding rate of the first feeding mechanism to decrease.

[0011] Preferably, the control unit calculates the voltage difference between the two sides of the stacking area based on the acquired monitoring data, and when the voltage difference between the two sides of the stacking area is greater than the threshold A, it starts the control of the first feeding mechanism and the second feeding mechanism to adjust their feeding rates.

[0012] Preferably, when there is a voltage difference between the two sides of the stockpiling area, the ratio of the feeding amount on the side with lower voltage to that on the side with higher voltage is 20:6.67.

[0013] Preferably, the material stacking area is divided into multiple sub-areas from the inlet end to the outlet end. Multiple monitoring units are provided, each monitoring unit corresponding to one sub-area to monitor the voltage on both sides of the sub-area. The control unit acquires the monitoring data of all monitoring units respectively, and calculates the total voltage difference between the sum of the voltages of all sub-areas on the same side and the sum of the voltages of all sub-areas on the other side based on the monitoring data of each monitoring unit. When the total voltage difference is greater than the threshold A, the control of the first feeding mechanism and the second feeding mechanism is initiated to adjust their feeding rates.

[0014] Preferably, it also includes an alarm unit. When the monitoring data of the monitoring unit shows that the voltage difference between the two sides of the stockpile area is greater than the threshold B, the alarm unit is activated and issues a warning.

[0015] Preferably, both the first feeding mechanism and the second feeding mechanism are screw feeders.

[0016] In this invention, a first feeding mechanism and a second feeding mechanism feed materials from both sides of the stacking area. A monitoring unit monitors the voltage on both sides of the stacking area, and a control unit controls the feeding rate of the first and second feeding mechanisms based on the monitoring data. This ensures that the feeding rate of the first or second feeding mechanism located on the side with lower voltage is greater than the feeding rate on the side with higher voltage. By adjusting the feeding rates of the first and second feeding mechanisms, the voltage on both sides of the stacking area tends to be consistent, thereby ensuring the stability and continuity of the material pile shape, avoiding material interruption or uneven stacking, and improving production efficiency and product quality. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the internal structure of the glass electric melting furnace described in the glass electric melting furnace material pile morphology control system proposed in this invention;

[0018] Figure 2 This is a schematic diagram of the stockpile shape in the stockpile area of ​​a glass electric melting furnace stockpile shape control system proposed in this invention;

[0019] Figure 3 This is a schematic diagram of the structure of a glass electric melting furnace material pile shape control system proposed in this invention. Detailed Implementation

[0020] Reference Figure 1-3 The present invention proposes a glass electric melting furnace material pile shape control system, wherein the glass electric melting furnace has a first electrode 1 and a second electrode 2 arranged opposite to each other, and a material pile area located between the first electrode 1 and the second electrode 2; the glass electric melting furnace has a feed port at one end of the material pile area and a discharge port 3 at the other end of the material pile area, wherein the feed port includes a first feed port 4 and a second feed port 5 respectively located on both sides of the central axis of the material pile area.

[0021] The stockpile morphology control system includes a feeding mechanism 6 for conveying materials to the stockpile area, a monitoring unit 7, and a control unit 8. The feeding mechanism 6 includes a first feeding mechanism and a second feeding mechanism. Both the first feeding mechanism and the second feeding mechanism are screw feeders, and the first feeding mechanism feeds materials through a first feed port 4, while the second feeding mechanism feeds materials through a second feed port 5.

[0022] Monitoring unit 7 is used to monitor the voltage on both sides of the stockpiling area. Control unit 8 is used to acquire the monitoring data from monitoring unit 7 and control the feeding rate of the first feeding mechanism and the second feeding mechanism based on the monitoring data, so that the feeding rate of the first or second feeding mechanism located on the side with lower voltage is greater than the feeding rate on the side with higher voltage. Specifically, when the monitoring data from monitoring unit 7 shows that the voltage on the side where the first feeding mechanism is located is lower than the voltage on the side where the second feeding mechanism is located, control unit 8 controls the feeding rate of the first feeding mechanism to increase or controls the feeding rate of the second feeding mechanism to decrease; when the monitoring data from monitoring unit 7 shows that the voltage on the side where the second feeding mechanism is located is lower than the voltage on the side where the first feeding mechanism is located, control unit 8 controls the feeding rate of the second feeding mechanism to increase or controls the feeding rate of the first feeding mechanism to decrease, so as to accelerate the feeding speed on the side of the stockpiling area with lower voltage, and make the amount of material fed on the side with lower voltage greater than the amount of material fed on the side with higher voltage. Because the glass melting furnace is characterized by low material temperature and relatively high resistivity, and high material temperature and relatively low resistivity, the initial material entering the furnace has a relatively low temperature and high resistivity, causing the voltage to rise accordingly. Therefore, by increasing the amount of material fed to the side with lower voltage, the voltage on that side is increased, thus making the voltage on both sides of the stacking zone more consistent. By monitoring the voltage on both sides of the stack, the stability and continuity of the stack shape can be ensured, avoiding material interruptions or uneven stacking, thereby improving production efficiency and product quality.

[0023] Furthermore, in this embodiment, the control unit 8 calculates the voltage difference between the two sides of the stockpiling area based on the acquired monitoring data, and when the voltage difference between the two sides of the stockpiling area is greater than a threshold A, it initiates control of the first feeding mechanism and the second feeding mechanism to adjust their feeding rates. Specifically, the control unit 8 includes a data processing and analysis module and a control module. The data processing and analysis module is used to analyze and calculate the acquired monitoring data to obtain the voltage difference between the two sides of the stockpiling area. When the obtained voltage difference is greater than the threshold A, the control module controls the feeding rates of the first feeding mechanism and the second feeding mechanism so that the feeding rate of the first feeding mechanism or the second feeding mechanism located on the lower voltage side is greater than the feeding rate on the higher voltage side.

[0024] By comparing the voltage difference with the set threshold A, the conditions for whether the control unit 8 is activated are obtained. This allows the stacking morphology management system to allow a certain amount of voltage fluctuation on both sides of the stack in the furnace. Only when the voltage rise / fall on one side causes the voltage difference on both sides to exceed the limit, i.e., exceed the set threshold A, will the control unit 8 be triggered to adjust the feeding amount. Specifically, the control unit 8 adjusts the lower voltage side and the higher voltage side to feed synchronously at a ratio of 20:6.67.

[0025] Furthermore, the material stacking area is divided into multiple sub-areas from the end where the inlet is located to the end where the outlet 3 is located. Multiple monitoring units 7 are provided, each monitoring unit 7 corresponding to one sub-area to monitor the voltage on both sides of the sub-area. The control unit 8 acquires the monitoring data of all monitoring units 7 respectively, and calculates the total voltage difference between the sum of the voltages of all sub-areas on the same side and the sum of the voltages of all sub-areas on the other side based on the monitoring data of each monitoring unit 7. When the total voltage difference is greater than the threshold A, the control of the first feeding mechanism and the second feeding mechanism is started to adjust their feeding rates.

[0026] By dividing the material stacking area into multiple sub-areas and setting a monitoring unit 7 in each sub-area to monitor the voltage on both sides of the sub-area, the control unit 8 first calculates the sum of the voltages of all sub-areas on the same side and the sum of the voltages of all sub-areas on the other side, and then calculates the difference between the sums of the voltages on both sides to obtain the total pressure difference. This makes the acquired data more reflective of the actual situation of the material stack in the furnace. Finally, the total pressure difference is compared with the set threshold A. When the total pressure difference is greater than the threshold A, the control unit 8 is triggered to adjust the feeding amount of the first feeding mechanism and the second feeding mechanism.

[0027] Furthermore, the glass electric melting furnace material pile morphology control system proposed in this invention also includes an alarm unit. When the monitoring data of the monitoring unit 7 shows that the voltage difference between the two sides of the material pile area is greater than the threshold B, the alarm unit is activated and issues a warning to remind the operator to pay attention and check, analyze related problems in a timely manner, take corresponding measures, further improve work efficiency, and reduce losses.

[0028] As can be seen from the above, the present invention uses a first feeding mechanism and a second feeding mechanism to feed materials from both sides of the stacking area. The monitoring unit 7 monitors the voltage on both sides of the stacking area, and the control unit 8 controls the feeding rate of the first feeding mechanism and the second feeding mechanism according to the monitoring data of the monitoring unit 7, so that the feeding rate of the first feeding mechanism or the second feeding mechanism located on the side with lower voltage is greater than the feeding rate on the side with higher voltage. By adjusting the feeding rate of the first feeding mechanism and the second feeding mechanism, the voltage on both sides of the stacking area tends to be consistent, so as to ensure the stability and continuity of the material pile shape, avoid material interruption or uneven stacking, and improve production efficiency and product quality.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A glass electric furnace stockpile regime management system, characterized by, The glass electric furnace has a first electrode (1) and a second electrode (2) arranged oppositely, and a material stacking area between the first electrode (1) and the second electrode (2); the glass electric furnace is provided with a feeding port at one end of the material stacking area and a discharging port (3) at the other end of the material stacking area, and the feeding port includes a first feeding port (4) and a second feeding port (5) arranged separately on both sides of the axis of the material stacking area; The material pile form control system includes a feeding mechanism (6) for feeding materials to the material stacking area, a monitoring unit (7), and a control unit (8); The feeding mechanism (6) includes a first feeding mechanism and a second feeding mechanism, the first feeding mechanism is fed by the first feeding port (4), and the second feeding mechanism is fed by the second feeding port (5); The monitoring unit (7) is used for monitoring the voltage on both sides of the material stacking area; The control unit (8) is used for acquiring the monitoring data of the monitoring unit (7) and controlling the feeding rate of the first feeding mechanism and the second feeding mechanism according to the monitoring data of the monitoring unit (7), so that the feeding rate of the first feeding mechanism or the second feeding mechanism on the side with lower voltage is greater than the feeding rate on the side with higher voltage.

2. The glass electric furnace stockpile profile management system of claim 1, wherein, When the monitoring data of the monitoring unit (7) shows that the voltage on the side where the first feeding mechanism is located is lower than the voltage on the side where the second feeding mechanism is located, the control unit (8) controls the feeding rate of the first feeding mechanism to be increased or the feeding rate of the second feeding mechanism to be decreased; when the monitoring data of the monitoring unit (7) shows that the voltage on the side where the second feeding mechanism is located is lower than the voltage on the side where the first feeding mechanism is located, the control unit (8) controls the feeding rate of the second feeding mechanism to be increased or the feeding rate of the first feeding mechanism to be decreased.

3. The glass electric furnace stockpile profile management system of claim 1, wherein, The control unit (8) calculates the voltage difference between the two sides of the material stacking area according to the acquired monitoring data, and starts the control of the first feeding mechanism and the second feeding mechanism to adjust the feeding rates of the two when the voltage difference between the two sides of the material stacking area is greater than a threshold A.

4. The glass electric furnace stockpile profile management system of claim 1, wherein, When there is a voltage difference between the two sides of the material stacking area, the ratio of the feeding amount on the side with lower voltage to the side with higher voltage is 20:6.

67.

5. The glass electric furnace stockpile profile management system of claim 1, wherein, The material stacking area is divided into multiple sub-areas from the end where the feeding port is located to the end where the discharging port (3) is located, and the monitoring unit (7) is provided with multiple monitoring units, each monitoring unit (7) corresponds to a sub-area to monitor the voltage on both sides of the sub-area; the control unit (8) acquires the monitoring data of all monitoring units (7), and calculates the total voltage difference between the sum of the voltages of all sub-areas on one side and the sum of the voltages of all sub-areas on the other side according to the monitoring data of each monitoring unit (7), and starts the control of the first feeding mechanism and the second feeding mechanism to adjust the feeding rates of the two when the total voltage difference is greater than a threshold A.

6. The glass electric furnace stockpile profile management system of claim 1, wherein, The first feeding mechanism and the second feeding mechanism are both screw feeders.

7. A glass electric furnace stockpile morphology management system according to any one of claims 1-6, wherein, The system further includes an alarm unit, which is started to issue a warning when the monitoring data of the monitoring unit (7) shows that the voltage difference between the two sides of the material stacking area is greater than a threshold B.

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