An ultra-thin electronic glass melting furnace hot repair operation pressure control system and method

Abstract

This invention relates to a pressure control system and method for hot repair operations of an ultra-thin electronic glass melting furnace, comprising: a combustion air reversing device, a branch flue regulating gate, a kiln pressure regulating gate, and a makeup air pressure regulating control device. The combustion air reversing device is located at the branch flue inlet, and the makeup air pressure regulating control device is located on the ash removal door, used to regulate and stabilize the internal pressure of the system and to replenish air. When the regenerator is undergoing hot repair, the combustion air reversing device adjusts the direction of the combustion air volume, closes the branch flue regulating gate of the regenerator in the hot repair state, increases the opening of the branch flue regulating gate of the regenerator in the non-hot repair state, and controls the makeup air pressure regulating control device to replenish the air intake of the regenerator, thereby controlling the kiln pressure through the opening and closing of the kiln pressure regulating gate. This invention enhances the pressure and flame combustion control during hot repair of the melting furnace regenerator, precisely controls pressure fluctuations and makeup air volume, and improves the operational stability of the melting furnace during hot repair.

Description

Technical Field

[0001] This invention belongs to the field of ultra-thin glass production, specifically relating to a pressure control system and method for hot repair operations of ultra-thin electronic glass melting furnaces. Background Technology

[0002] The ultra-thin electronic glass melting furnace is one of the key pieces of equipment in the production of ultra-thin electronic glass. Currently, with the changing market demand and further intensification of market competition, the technological upgrading and transformation of ultra-thin electronic glass production lines is imperative.

[0003] With the significant extension of the kiln's lifespan, the regenerator in ultra-thin electronic glass production lines requires more frequent hot repairs, unclogging, and grid replacement operations. During these operations, the stability of the melting furnace has a significant impact on product quality. Furthermore, the ash removal door structure of the regenerator in ultra-thin electronic glass production lines is still constructed with bricks, making dismantling and restoration difficult during hot repairs. It also makes it impossible to accurately control kiln pressure and combustion stability, thus failing to meet actual production needs. Summary of the Invention

[0004] The technical problem of this invention is that pressure control is difficult, combustion is unstable, pressure fluctuations are large, and the make-up air volume is uncontrollable during the hot repair of the furnace regenerator.

[0005] The purpose of this invention is to solve the above problems and propose a pressure control system for hot repair of an ultra-thin electronic glass melting furnace, including: a combustion air reversing device, a flue gas regulating gate, a kiln pressure regulating gate, and a makeup air pressure regulating control device. The combustion air reversing device is located at the branch flue opening and is used for supplying and reversing the combustion air. The regulating damper of the flue is used to control the gas flow rate in the flue. The kiln pressure regulating gate controls the amount of gas entering and exiting the kiln by adjusting the opening of the gate, thereby controlling the pressure inside the kiln. The air supply pressure regulation control device is located on the ash removal door and is used to regulate and stabilize the internal pressure of the system and to supply air.

[0006] Preferably, a pressure control system for hot repair of an ultra-thin electronic glass melting furnace further includes a hanging slide, a pulley block, and an ash removal door frame. The hanging slide is located on a column near the heat storage chamber, and the pulley block suspends the ash removal door frame through the hanging slide for installing and removing the ash removal door frame.

[0007] Furthermore, the ash removal door adopts a steel frame insulated structure.

[0008] Furthermore, during the installation of the ash removal door frame, insulation modules are used for filling and sealing.

[0009] Preferably, the heat storage chamber is equipped with multiple observation windows for observing changes in the internal structure of the heat storage chamber and the blockage of the grid.

[0010] Furthermore, in the above-mentioned pressure control method for the hot repair operation of an ultra-thin electronic glass melting furnace, when the regenerator is undergoing hot repair, the combustion air reversing device adjusts the direction of the combustion air volume, closes the regulating gate of the branch flue of the regenerator in the hot repair state, increases the opening of the regulating gate of the branch flue of the regenerator in the non-hot repair state, and controls the supplementary air pressure control device to supplement the air intake of the regenerator, thereby controlling the pressure inside the kiln by opening and closing the kiln pressure regulating gate.

[0011] Compared with the prior art, the beneficial effects of the present invention include: 1) The present invention proposes a pressure control system for hot repair of ultra-thin electronic glass melting furnace, which strengthens the pressure and flame combustion control during hot repair of the melting furnace regenerator, accurately controls pressure fluctuations and air supply, and improves the stability of melting furnace operation during hot repair.

[0012] 2) The pressure control system for hot repair of ultra-thin electronic glass melting furnaces makes it more convenient to clean the bottom of the furnace regenerator, unclog and clean the grid, and conduct daily inspections, thus reducing the cost of upgrading and renovating old melting furnaces. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a cross-sectional view (AA) of the pressure control system for furnace hot repair operations according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the pressure control system for furnace hot repair operations according to an embodiment of the present invention; Attached reference numerals: 1. Combustion air reversing device; 2. Branch flue regulating gate; 3. Kiln pressure regulating gate; 4. Makeup air pressure regulating control device; 5. Hanging slide; 6. Pulley block; 7. Ash removal door frame; 8. Insulation module; 9. Observation window. Detailed Implementation

[0015] like Figure 1 and Figure 2 As shown, a pressure control system for hot repair of an ultra-thin electronic glass melting furnace includes: a combustion air reversing device 1, a branch flue regulating gate 2, a kiln pressure regulating gate 3, and a makeup air pressure regulating control device 4. Combustion air reversing device 1 is located at the branch flue opening and is used for supplying and reversing combustion air; The branch flue regulating damper 2 is used to control the gas flow rate in the flue. The kiln pressure regulating gate 3 controls the amount of gas entering and exiting the kiln by adjusting the opening of the gate, thereby controlling the pressure inside the kiln. The air supply pressure regulation control device 4 is located on the ash removal door and is used to regulate and stabilize the internal pressure of the system and to supply air.

[0016] It also includes a hanging slide 5, a pulley block 6, and a ash removal door frame 7. The hanging slide 5 is installed on a column near the heat storage chamber, and the pulley block 6 suspends the ash removal door frame 7 through the hanging slide 5 for installing and removing the ash removal door frame 7.

[0017] The ash removal door uses a steel frame insulated structure.

[0018] During the installation of the ash removal door frame 7, insulation modules 8 are used for filling and sealing.

[0019] The heat storage chamber is equipped with multiple observation windows 9 for observing the internal structure of the heat storage chamber and changes in the blockage of the grid.

[0020] As described above, in the pressure control method for the hot repair operation of an ultra-thin electronic glass melting furnace, when the regenerator is undergoing hot repair, the combustion air reversing device 1 adjusts the direction of the combustion air volume, closes the branch flue regulating gate 2 of the regenerator in the hot repair state, increases the opening of the branch flue regulating gate 2 of the regenerator in the non-hot repair state, and controls the supplementary air pressure regulating control device 4 to supplement the air intake of the regenerator, thereby controlling the pressure inside the kiln by opening and closing the kiln pressure regulating gate 3.

[0021] To better illustrate the effectiveness of the method presented in this paper, a method that controls pressure and air intake through on-side operations and temporary sheet metal panels before implementation was selected as a comparison. The comparison results are shown in Table 1. Table 1

[0022] As shown in Table 1, the pressure fluctuation range and combustion stability are significantly improved after applying the present invention, which enhances the stability of furnace operation during hot repair.

[0023] Furthermore, the use of this invention makes daily inspections more convenient. Before implementation, the number of bubbles detected by the defect detector during hot repair was 100-1000 per hour. After implementation, the number of bubbles detected by the defect detector during hot repair is around 100, which significantly reduces production fluctuations and effectively controls defects such as bubbles and stones on the plate surface. The cleaning of ash at the bottom of the furnace regenerator, the unblocking and cleaning of the grid, and daily inspections are also more convenient.

[0024] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. An ultra-thin electronic glass melting furnace hot repair operation pressure control system, characterized in that, include: Combustion air reversing device (1), branch flue regulating gate (2), kiln pressure regulating gate (3) and make-up air pressure regulating control device (4); The combustion air reversing device (1) is located at the branch flue opening and is used for supplying and reversing combustion air; The branch flue regulating gate (2) is used to control the gas flow rate in the flue; The kiln pressure regulating gate (3) controls the amount of gas entering and exiting the kiln by adjusting the opening of the gate, thereby controlling the pressure inside the kiln. The air supply pressure regulation control device (4) is installed on the ash removal door and is used to regulate and stabilize the internal pressure of the system and supply air. It also includes a hanging slide (5), a pulley block (6) and a ash removal door frame (7). The hanging slide (5) is located on a column near the heat storage chamber. The pulley block (6) suspends the ash removal door frame (7) through the hanging slide (5) for installing and removing the ash removal door frame (7).

2. The pressure control system for hot repair operations of an ultra-thin electronic glass melting furnace according to claim 1, characterized in that, The ash removal door adopts a steel frame insulated structure.

3. The pressure control system for hot repair of an ultra-thin electronic glass melting furnace according to claim 2, wherein During the installation of the ash removal door frame (7), insulation modules (8) are used for filling and sealing.

4. The pressure control system for hot repair of an ultra-thin electronic glass melting furnace according to claim 1, wherein Multiple observation windows (9) are provided on the heat storage chamber for observing the internal structure of the heat storage chamber and the changes in the blockage of the grid.

5. The ultra-thin electronic glass melting furnace hot repair operation pressure control method of claim 1, wherein, When the heat storage chamber is undergoing hot repair, the combustion air reversing device (1) adjusts the direction of the combustion air volume, closes the branch flue regulating gate (2) of the heat storage chamber under hot repair, increases the opening of the branch flue regulating gate (2) of the heat storage chamber under non-hot repair, and controls the supplementary air pressure regulating control device (4) to supplement the air volume of the heat storage chamber, and then controls the kiln pressure through the opening and closing of the kiln pressure regulating gate (3).

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