Sulfur dioxide blowing device for tin bath

Abstract

The utility model relates to a tin bath sulfur dioxide blowing device which comprises a sulfur dioxide generating device used for generating small-flow sulfur dioxide gas, and the sulfur dioxide generating device is led into a blowing pipe; the blowing pipe is a metal pipe body, one end of the metal pipe body is sealed, the other end of the metal pipe body is connected to the sulfur dioxide generating device through a hose, a small hole is formed in the sealed end, and a nozzle is arranged at the position of the small hole; a flow meter is arranged on the hose and is used for monitoring the flow of sulfur dioxide in the blowing pipe to be small flow; a support is arranged on the metal pipe body, and the blowing pipe is fixed to the positions of climbing rollers, attached with tin sulfide, of the first to third transition roller tables through the support. Sulfur dioxide is blown to the roller through the small holes, sulfur dioxide and tin sulfide are subjected to a chemical reaction, SO2 and the glass plate can generate a Na2SO4 thin film protection layer capable of being wiped off under the high-temperature condition, the Na2SO4 thin film protection layer is attached to the lower surface of the glass plate, and the hardness of the glass plate is increased. The probability of gouges and abrasion is reduced, and the problem of quality defects is solved.

Description

Technical Field

[0001] This invention is applicable to float glass production lines and provides a method for handling under-plate damage during the production process, specifically a tin bath sulfur dioxide blowing device. Background Technology

[0002] During the glass production process, tin ash and other substances are continuously generated inside the tin bath. When the glass plate moves, it is carried to the rollers and forms tin sulfide. This sulfide can easily adhere to a certain part of the No. 1-3 inclined rollers on the transition roller table, causing damage, affecting the quality of the glass, and preventing online deep processing of the glass, resulting in significant losses to the company's operations. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a sulfur dioxide blowing device for a tin bath. After adding a sulfur dioxide gas pipe, it solves the quality problems caused by glass plates being damaged or rusted, thus solving the biggest problem for the company's new product development and online coating; and greatly improving economic benefits.

[0004] This utility model proposes a sulfur dioxide blowing device for a tin bath, the blowing device comprising:

[0005] A sulfur dioxide generating device is used to generate a small flow rate of sulfur dioxide gas, and the sulfur dioxide generating device is introduced into a blowing pipe.

[0006] The blowing pipe is a metal tube, one end of which is sealed, and the other end is connected to the sulfur dioxide generating device via a flexible hose. A small hole is opened at the sealed end, and a nozzle is located at the opening position. A flow meter is installed on the flexible hose to monitor the flow rate of sulfur dioxide in the blowing pipe and ensure it is at a low flow rate. A bracket is installed on the metal tube to fix the blowing pipe at the positions of the No. 1-3 inclined rollers of the transition roller table with tin sulfide attached.

[0007] Furthermore, the metal tube is fixed below the No. 1-3 climbing rollers of the transition roller platform, and the tube body passes through the No. 1-3 climbing rollers of the transition roller platform, so that the nozzle blows gas above the No. 1-3 climbing rollers of the transition roller platform.

[0008] Furthermore, the sulfur dioxide generating device is a sulfur dioxide storage tank, and a sulfur dioxide pressure reducer is provided at the tank opening of the sulfur dioxide storage tank.

[0009] Furthermore, the nozzle is detachably connected to the orifice.

[0010] In a preferred embodiment of this application, the flow rate of the low-flow sulfur dioxide gas is controlled at 1.2-1.8 L / min.

[0011] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0012] This invention proposes a sulfur dioxide blowing device for a tin bath. A small amount of sulfur dioxide is introduced (the amount can be reduced depending on the extent of damage) and sealed. The sulfur dioxide is blown through small holes onto rollers, where it reacts chemically with tin sulfide. Under high temperature conditions, SO2 reacts with the glass plate to form a removable Na2SO4 film protective layer that adheres to the lower surface of the glass plate, increasing its hardness. This reduces the probability of scratches and abrasions, thus solving the problem of quality defects.

[0013] After installing the sulfur dioxide gas pipe, the quality problems caused by glass plate damage and rust spots have been solved, which has solved the biggest problem for the company's new product development and online coating; and greatly improved economic benefits. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the tin bath sulfur dioxide blowing device of this utility model;

[0015] Figure 2 This is a schematic diagram of the blowing device structure in the embodiment;

[0016] In the diagram: 1. 32mm diameter stainless steel pipe; 2. Sulfur dioxide pressure reducer; 3. 10mm diameter quick connector; 4. 0-500L / h rotor flow meter; 5. Sulfur dioxide storage tank; 6. Blowpipe support. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings:

[0018] This utility model proposes a sulfur dioxide blowing device for a tin bath, the blowing device comprising:

[0019] A sulfur dioxide generating device is used to generate a small flow rate of sulfur dioxide gas, and the sulfur dioxide generating device is introduced into a blowing pipe.

[0020] The blowing pipe is a metal tube, one end of which is sealed, and the other end is connected to the sulfur dioxide generating device via a flexible hose. A small hole is opened at the sealed end, and a nozzle is located at the opening position. A flow meter is installed on the flexible hose to monitor the flow rate of sulfur dioxide in the blowing pipe and ensure it is at a low flow rate. A bracket is installed on the metal tube to fix the blowing pipe at the positions of the No. 1-3 inclined rollers of the transition roller table with tin sulfide attached.

[0021] Furthermore, the metal tube is fixed below the No. 1-3 inclined rollers of the transition roller platform, and the tube body passes through the No. 1-3 inclined rollers of the transition roller platform, causing the nozzle to blow gas obliquely upwards towards the No. 1-3 inclined rollers of the transition roller platform. At the No. 1-3 inclined rollers of the transition roller platform where tin sulfide is attached, sulfur dioxide reacts chemically with tin sulfide, and SO2 reacts with the glass plate under high temperature conditions to form a removable Na2SO4 thin film protective layer that adheres to the lower surface of the glass plate.

[0022] Furthermore, the sulfur dioxide generating device is a sulfur dioxide storage tank, and a sulfur dioxide pressure reducer is provided at the tank opening of the sulfur dioxide storage tank.

[0023] Furthermore, the nozzle is detachably connected to the orifice, and the flow rate of the blowing gas can be quickly adjusted by replacing the nozzle.

[0024] Furthermore, the metal tube is etched with length markings, or it is cut with a measuring tape and tied with wire or spot-welded onto the metal tube. By using cold-end quality inspection to detect the location of the defect and matching it with the metal tube's dimensions, the defect can be quickly located, reducing processing time.

[0025] In a preferred embodiment of this application, the flow rate of the low-flow sulfur dioxide gas is controlled at 1.2-1.8 L / min.

[0026] like Figure 1 As shown, this utility model discloses a sulfur dioxide blowing device for a tin bath. It uses a 32mm diameter hollow stainless steel pipe with a small hole drilled at the front end. The pipe is inserted from below the rollers to the positions of the No. 1-3 inclined rollers on the transition roller table where tin sulfide is applied, and fixed with a bracket. A small amount of sulfur dioxide is introduced (the amount can be reduced depending on the extent of damage) and sealed. The sulfur dioxide is blown through the small hole onto the rollers. The sulfur dioxide reacts chemically with the tin sulfide, and under high temperature conditions, SO2 reacts with the glass plate to form a removable Na2SO4 film protective layer that adheres to the lower surface of the glass plate, increasing its hardness and reducing the probability of scratches and abrasions. This addresses the problem of quality defects.

[0027] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sulfur dioxide blowing device for a tin bath, characterized in that, The blowing device includes: A sulfur dioxide generating device is used to generate a small flow rate of sulfur dioxide gas, and the sulfur dioxide generating device is introduced into a blowing pipe. The blowing pipe is a metal tube with one end sealed and the other end connected to the sulfur dioxide generating device via a hose. A small hole is opened on the sealed end, and a nozzle is located at the opening position. The hose is equipped with a flow meter, which is used to monitor the flow rate of sulfur dioxide in the blowing pipe and ensure it is low. The metal tube is equipped with a bracket, which fixes the blowing tube at the positions of the No. 1-3 ramp rollers of the transition roller table with tin sulfide attached.

2. The tin bath sulfur dioxide blowing device according to claim 1, characterized in that, The metal tube is fixed below the No. 1-3 climbing rollers of the transition roller platform. The tube body passes through the No. 1-3 climbing rollers of the transition roller platform, so that the nozzle blows gas above the No. 1-3 climbing rollers of the transition roller platform.

3. The tin bath sulfur dioxide blowing device according to claim 1, characterized in that, The sulfur dioxide generating device is a sulfur dioxide storage tank, and a sulfur dioxide pressure reducer is installed at the tank opening of the sulfur dioxide storage tank.

4. The tin bath sulfur dioxide blowing device according to any one of claims 1 to 3, characterized in that, The nozzle is detachably connected to the orifice.

5. The tin bath sulfur dioxide blowing device according to claim 4, characterized in that, The flow rate of the low-flow sulfur dioxide gas is controlled at 1.2-1.8 L / min.

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