Plate glass laser etching waste gas collection and treatment device

Abstract

The utility model relates to a plate glass laser etching waste gas collecting and treating device, and belongs to the technical field of waste gas treatment. The laser etching device comprises a laser etching assembly, the laser etching assembly is communicated with a gas collecting hood with an opening in the lower end, the top of the gas collecting hood is communicated with a gas collecting pipe, the gas collecting pipe is communicated with an exhaust inlet of a fan, the fan can exhaust gas from the gas collecting hood, an exhaust port of the fan is communicated with an exhaust pipe, and the tail of the exhaust pipe is communicated with a gas filtering device; and a water cooler is arranged on the exhaust pipe. By utilizing the suction effect of the fan, waste gas can be quickly sucked into the gas collecting hood, so that the phenomenon that the waste gas is scattered and overflows is reduced, and the collecting capacity of the waste gas is improved; and then the temperature of the waste gas is reduced through the arranged water cooler, and the low-temperature waste gas is discharged through the gas filtering device. As a whole, the device is simple in structure, few in needed parts, low in cost and good in waste gas collection and treatment effect.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a device for collecting and treating waste gas from laser etching of flat glass. Background Art

[0002] During the deep processing of flat glass, the surface coating is laser etched, marked, punched, and other operations are performed according to process requirements. Existing flat glass laser etching equipment generally does not adopt collection and treatment facilities in the waste gas collection and treatment process, resulting in the waste gas being discharged in an unorganized form, worsening the production working environment; some adopt overall exhaust collection of the equipment, such as an ITO glass laser etcher with announcement number CN220993138U, which mentions an exhaust collection structure: it includes an equipment main body, and connecting columns are fixedly connected to both sides of the middle part of the upper surface of the equipment main body, and the upper surface of the connecting column is fixedly connected to a connecting block, and the upper surface of the connecting block is provided with an X-motion axis, and the upper surface of the X-motion axis is slidably connected to a lifting Z-axis, and the rear end of the lifting Z-axis is slidably connected to a laser, and the lower end of the laser is provided with a laser scanning lens, and the upper surface of the equipment main body is provided with a Y-motion axis, and the upper surface of the Y-motion axis is slidably connected to a work table, and a smoke exhaust duct is provided inside the equipment main body. The exhaust gas generated by laser etching is collected and discharged through the exhaust pipe, but this structural method will result in low exhaust gas treatment efficiency and high overall energy consumption.

[0003] Another example is a laser cutting waste gas collection system and method with publication number CN108581195A, which has an inner ring part and an outer ring part, the inner ring part has four blowing units in different directions, and the outer ring part has multiple corresponding suction units. When performing an edge cutting operation on a display panel, laser cutting waste gas is generated near the laser contact point. At this time, one of the four blowing units blows gas toward the laser contact point to blow away the laser cutting waste gas, and the multiple suction units suck the waste gas away, thereby improving the cleanliness of the working environment and the waste gas removal rate, so as to ensure the product quality and the health of the staff. However, this structure requires the provision of corresponding suction units and blowing units as well as corresponding control systems, which makes the overall structure more complicated and the production cost higher. Utility Model Content

[0004] In order to solve the problems of poor collection and treatment effect and high cost of waste gas from laser etching of flat glass in the prior art, the utility model provides a device for collecting and treating waste gas from laser etching of flat glass, which has the advantages of simple structure and good waste gas collection and treatment effect.

[0005] It adopts the following technical solutions:

[0006] A device for collecting and treating waste gas from laser etching of flat glass comprises a laser etching component, wherein the laser etching component is connected to an air collecting hood with an open lower end, the top of the air collecting hood is connected to an air collecting pipe, the air collecting pipe is connected to an air suction port of a fan, the fan can draw air from the air collecting hood, the exhaust port of the fan is connected to an exhaust pipe, the tail end of the exhaust pipe is connected to a gas filtering device; a water cooler is provided on the exhaust pipe.

[0007] Furthermore, the gas collecting hood includes a hood opening that is a funnel-shaped structure with a small upper end and a large lower end. The hood opening is adjacent to the laser etching component, and the lower end of the hood opening is open, and the open end is close to the laser etching area of ​​the laser etching component.

[0008] Furthermore, the water cooler includes an interlayer jacket sleeved on the exhaust pipe, the interlayer jacket is provided with a water inlet pipe and a return pipe connected to its interior, the water inlet pipe and the return pipe are connected to a circulating cooling water tank, and the circulating cooling water tank is provided with a circulating water pump, which pumps cooling water in the interlayer jacket to form a water cooling cycle.

[0009] Furthermore, the laser etching component includes a laser nozzle, in which an auxiliary gas supply device and an auxiliary gas pressure control system matching the auxiliary gas supply device are provided; the blowing end of the auxiliary gas supply device acts on the glass laser etching area and blows the exhaust gas toward the open side of the gas collecting hood.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This device incorporates a gas collection hood, a gas collection pipe, a fan, a gas filter, and a water cooler. The fan's suction effect quickly draws exhaust gas into the hood, reducing its potential for scattering and improving collection capacity. The water cooler then cools the exhaust gas, which is then discharged through the gas filter. Overall, this device boasts a simple structure, requires fewer parts, and is relatively low-cost, achieving excellent exhaust gas collection and treatment results.

[0012] By connecting the gas collecting hood adjacent to one side of the laser etching component, the opening of the gas collecting hood is brought closer to the laser etching area of ​​the laser etching component, thereby further improving the exhaust gas collection effect.

[0013] By setting up a water cooler and utilizing water as a circulating cooling medium, the device is simple and easy to use, and has low manufacturing and use costs.

[0014] By setting up an auxiliary gas supply device and using its blown gas to act on the laser etching area of ​​the glass, in addition to improving the laser etching effect, the exhaust gas generated is blown to the open side of the gas collection hood through the airflow, further improving the exhaust gas collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a structural schematic diagram of a device for collecting and treating waste gas from laser etching of flat glass according to an embodiment of the utility model.

[0016] Explanation of the accompanying drawings: 1. Laser etching assembly; 1a. Laser nozzle; 1b. Auxiliary gas supply device; 2. Gas collecting hood; 2a. Hood opening; 2b. Vertical plate; 3. Gas collecting pipe; 4. Fan; 5. Exhaust pipe; 6. Gas filter device; 7. Water cooler; 7a. Water inlet pipe; 7b. Water return pipe; 7c. Interlayer sleeve; 7d. Circulating water pump; 7e. Circulating cooling water tank; 8. Support platform. DETAILED DESCRIPTION

[0017] In order to make the present invention more clear, the following further describes a flat glass laser etching waste gas collection and treatment device of the present invention in conjunction with the accompanying drawings. The specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0018] like Figure 1 As shown, a device for collecting and treating waste gas from laser etching of flat glass is shown. The device includes a laser etching assembly 1. The laser etching assembly 1 is located on the upper side of a flat glass support surface as a working component for glass photoetching. In this embodiment, the flat glass is located on a support platform 8, and the laser etching assembly 1 is located directly above the support platform 8. The laser etching assembly 1 is connected to a gas collecting hood 2 with an open lower end. The gas collecting hood 2 includes a hood opening 2a that is an overall funnel-shaped structure with a small upper end and a large lower end. The hood opening 2a is made of a high-temperature and corrosion-resistant material. It can be an inverted conical structure, or it can be structured as shown in the figure: it is formed by splicing vertical plates 2b and inclined plates. For example, it can be formed by bending and welding stainless steel plates. The seam can be connected and enclosed by sheet metal biting or welding to prevent air and smoke leakage. One side wall of the hood 2a is adjacently connected to the outer side wall of the laser etching component 1, and the side wall can also be shared with the outer side wall of the laser etching component 1. The lower end of the hood 2a is an open structure, and its opening is close to the laser etching area of ​​the laser etching component 1. In this way, the exhaust gas generated by the laser etching of the flat glass can be more easily inhaled into the hood 2a.

[0019] A gas collecting pipe 3 is connected to the top of the gas collecting hood 2. The gas collecting pipe 3 can be set to be fixed or movable according to the operating mode of the laser etching component 1. That is, when the laser etching component 1 has the function of moving along the coordinates, the gas collecting pipe 3 is movable, that is, the gas collecting pipe 3 has flexible joints or the gas collecting pipe 3 is a flexible tube that is resistant to high temperature and corrosion as a whole or in part. When the laser etching component 1 has no movement function and the corresponding flat glass support surface has the function of coordinate movement, the gas collecting pipe 3 can be fixed, for example, the gas collecting pipe 3 is a stainless steel metal tube. The other end of the gas collecting pipe 3 is connected to the air intake of the fan 4, which can extract air from the gas collecting hood 2. The exhaust port of the fan 4 is connected to the exhaust pipe 5, which is provided with a water cooler 7. The tail end of the exhaust pipe 5 is connected to the gas filter device 6.

[0020] Among them, the water cooler 7 includes an interlayer sleeve 7c sleeved on the exhaust pipe 5. The interlayer sleeve 7c can be welded by two concentrically sleeved steel pipes and plugs at both ends. It has a certain cavity inside. At both ends of the interlayer sleeve 7c, there are respectively provided with an inlet pipe 7a and a return pipe 7b connected to its internal cavity. The other ends of the inlet pipe 7a and the return pipe 7b are connected to the circulating cooling water tank 7e. The circulating cooling water tank 7e has a circulating water pump 7d. The circulating water pump 7d pumps cooling water in the interlayer sleeve 7c to form a cooling cycle to reduce the temperature of the exhaust pipe 5 and thus reduce the exhaust gas temperature.

[0021] The gas filtering device 6 may be a bag-type dust collector or an electrostatic dust collector. These structures are conventional structures and are not described in detail here.

[0022] In a further embodiment, the laser etching assembly 1 includes a laser nozzle 1a, which is provided with an auxiliary gas supply device 1b and an auxiliary gas pressure control system associated with the auxiliary gas supply device 1b. The auxiliary gas supply device 1b, through an air path within the laser nozzle 1a, can blow air to the laser-etched portion of the glass. This not only improves the laser etching effect but also directs the generated exhaust gas toward the open side of the gas collection hood 2, further enhancing the exhaust gas collection effect.

[0023] When the device is used, the fan 4 is first turned on to draw air into the gas collecting hood 2. The smoke and dust exhaust gas generated by laser etching is collected in the gas collecting pipe 3. At the same time, the circulating water pump 7d is started. The high-temperature smoke and dust exhaust gas is cooled by the interlayer sleeve 7c through the exhaust pipe 5 and then enters the gas filter device 6 for filtration and treatment before being discharged.

[0024] The above structure utilizes the suction effect of the fan to quickly draw exhaust gas into the gas collection hood 2, reducing the phenomenon of exhaust gas scattering and improving the exhaust gas collection capacity. The exhaust gas temperature is then reduced by the provided water cooler 7, and the low-temperature exhaust gas is discharged through the gas filter device 6. Overall, this device has a simple structure, requires fewer parts, is low in cost, and has a good exhaust gas collection and treatment effect.

[0025] The above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention may be implemented. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising from the essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A device for collecting and treating waste gas from laser etching of flat glass, comprising a laser etching component (1), characterized in that: The laser etching assembly (1) is connected to an air collecting hood (2) with an open lower end, and an air collecting pipe (3) is connected to the top of the air collecting hood (2). The air collecting pipe (3) is connected to the air suction port of the fan (4), and the fan (4) can extract air from the air collecting hood (2). The exhaust port of the fan (4) is connected to the exhaust pipe (5), and the tail end of the exhaust pipe (5) is connected to the gas filtering device (6); a water cooler (7) is provided on the exhaust pipe (5).

2. The device for collecting and treating waste gas from laser etching of flat glass according to claim 1, characterized in that: The gas collecting hood (2) comprises a hood opening (2a) that is a funnel-shaped structure with a small upper end and a large lower end. The hood opening (2a) is adjacent to the laser etching component (1). The lower end of the hood opening (2a) is open, and the open end is close to the laser etching area of ​​the laser etching component (1).

3. The device for collecting and treating waste gas from laser etching of flat glass according to claim 1 or 2, characterized in that: The water cooler (7) comprises an interlayer jacket (7c) sleeved on the exhaust pipe (5); the interlayer jacket (7c) is provided with a water inlet pipe (7a) and a water return pipe (7b) in communication with the interior thereof; the water inlet pipe (7a) and the water return pipe (7b) are connected to a circulating cooling water tank (7e); a circulating water pump (7d) is provided in the circulating cooling water tank (7e); the circulating water pump (7d) pumps cooling water to form a water cooling cycle in the interlayer jacket (7c).

4. The device for collecting and treating waste gas from laser etching of flat glass according to claim 1, characterized in that: The laser etching assembly (1) comprises a laser nozzle (1a), in which an auxiliary gas supply device (1b) and an auxiliary gas pressure control system supporting the auxiliary gas supply device (1b) are provided; The blowing end of the auxiliary gas supply device (1b) acts on the laser etching portion of the glass and blows the exhaust gas toward the open side of the gas collecting hood (2).

Images