Defoaming agent spraying method and device for glass kiln

Abstract

The invention discloses a defoaming agent spraying method and device for a glass kiln. The defoaming agent spraying method for the glass kiln comprises the following steps that the distribution condition of foam in the glass kiln is observed; according to the observation result, the spray gun sprays the foam concentration area. According to the defoaming agent spraying method for the glass kiln, high foam eliminating efficiency can be achieved.

Description

Technical Field

[0001] This invention relates to the field of glass manufacturing, and in particular to a method and apparatus for spraying defoamer in glass kilns. Background Technology

[0002] In related technologies, during the glass production process, the batch materials generate a large amount of foam in the high-temperature melting furnace, which affects the melting and clarification quality of the glass. To eliminate this foam, it is usually necessary to spray defoaming agents into the furnace.

[0003] Furthermore, the defoamer can be injected into the kiln using a defoamer injection system. Specifically, the spray gun of the defoamer injection system sprays the defoamer into the kiln, thus eliminating foam. However, when injecting defoamer into the kiln, the defoamer cannot accurately cover the foam accumulation area, resulting in low foam elimination efficiency. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a defoamer injection method for glass furnaces, which can achieve high foam elimination efficiency.

[0005] The present invention also proposes a defoamer spraying device for glass kilns.

[0006] A defoamer spraying method for a glass furnace according to a first aspect of the present invention includes the following steps: Observe the distribution of foam inside the glass furnace; Based on the observations, spray the foam directly onto the concentrated area.

[0007] According to an embodiment of the present invention, a defoamer spraying method for a glass furnace has at least the following beneficial effects: by observing the distribution of foam inside the glass furnace, it is possible to determine which areas the foam is concentrated in. Based on the observation results, the spray gun is then used to spray the foam-concentrated areas. This allows the defoamer to precisely cover the foam accumulation areas, thereby effectively eliminating the foam. Specifically, the defoamer spraying method for a glass furnace can achieve high foam elimination efficiency.

[0008] According to some embodiments of the present invention, a method for spraying defoamer for a glass furnace further includes the step of placing the spray gun at the bottom of the glass furnace.

[0009] According to some embodiments of the present invention, a defoamer spraying method for a glass kiln further includes the step of adjusting the angle of the spray gun so that the spray gun sprays onto the foam concentration area.

[0010] According to some embodiments of the present invention, a method for spraying defoamer for a glass kiln further includes the step of adjusting the flow rate and atomization pressure of the defoamer sprayed by the spray gun.

[0011] According to a second aspect of the present invention, a defoamer injection device for a glass furnace is used in a defoamer injection method for a glass furnace according to any one of the first aspects of the present invention. The defoamer injection device for a glass furnace includes: spray gun; An adjustment component is connected to the spray gun, and the adjustment component is capable of adjusting the position of the spray gun.

[0012] According to an embodiment of the present invention, a defoamer spraying device for a glass kiln has at least the following beneficial effects: the adjusting component can adjust the position of the spray gun, and by adjusting the position of the spray gun, the spray gun can spray the defoamer onto the area where foam is concentrated. This allows the defoamer to precisely cover the foam accumulation area, thereby effectively eliminating foam. Specifically, a defoamer spraying device for a glass kiln can achieve high foam elimination efficiency.

[0013] According to some embodiments of the present invention, a defoamer spraying device for a glass kiln includes an adjusting assembly comprising a slide rail and a slider, the slider being slidably connected to the slide rail and connected to the spray gun, the slider being capable of sliding on the slide rail to adjust the height of the spray gun.

[0014] According to some embodiments of the present invention, a defoamer spraying device for a glass kiln is provided, wherein the slider is rotatably connected to the spray gun.

[0015] According to some embodiments of the present invention, a defoamer spraying device for a glass kiln includes an adjusting assembly comprising a bracket and a base, wherein the two ends of the bracket are respectively connected to the base and the slide rail.

[0016] According to some embodiments of the present invention, a defoamer spraying device for a glass kiln is provided, wherein multiple supports are provided, and the multiple supports have different lengths. Any one of the supports can be detachably connected to the base and the slide rail to change the tilt angle between the slide rail and the horizontal plane.

[0017] According to some embodiments of the present invention, a defoamer spraying device for a glass kiln further includes a sleeve sleeved on the spray gun, wherein a cooling chamber is formed between the sleeve and the spray gun, and the cooling chamber is used for the introduction and discharge of a cooling medium.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram illustrating the application of a defoamer spraying device for a glass kiln in a glass kiln, according to some embodiments of the present invention. Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of a spray gun and sleeve in a defoamer spraying device for a glass kiln, according to some embodiments of the present invention.

[0020] Figure label: A defoamer spraying device 10 for a glass furnace, a glass furnace 20, a spray gun 100, an atomizing gas inlet 110, a defoamer inlet 120, an adjusting component 200, a slide rail 210, a slider 220, a bracket 230, a base 240, a sleeve 300, a liquid inlet 400, and a liquid outlet 500. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0025] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] In some embodiments, a method for spraying defoamer for a glass furnace includes the following steps: Observe the distribution of foam inside glass furnace 20; Based on the observation results, spray gun 100 sprays onto the concentrated foam area.

[0027] Specifically, by observing the distribution of foam within the glass furnace 20, it is possible to determine which areas the foam is concentrated in. Based on these observations, the spray gun 100 is then directed to spray the concentrated foam areas. This allows the defoamer to precisely cover the foam accumulation areas, effectively eliminating the foam. In essence, a defoamer spraying method for glass furnaces achieves high foam elimination efficiency.

[0028] Furthermore, observing the distribution of foam within the glass furnace 20 specifically refers to observing the foam distribution through a high-temperature furnace camera or a handheld filter lens at the furnace observation port. The foam distribution within the glass furnace 20 may be characterized by concentrated foam in some areas and sparse foam in others. Additionally, the timing of foam observation within the glass furnace 20 can be as follows: before foam removal; after foam removal for a period of time; or after foam removal. In other words, the foam within the glass furnace 20 can be observed multiple times to ensure effective and complete removal of foam.

[0029] The aforementioned observations could include: concentrated foam in certain areas within the glass furnace 20; sparse foam in certain areas within the glass furnace 20; more foam on one side and less on the other; less foam in the middle and more on the sides within the glass furnace 20; or more foam in the middle and less on the sides within the glass furnace 20. The defoamer can be: silicone-based defoamer with polydimethylsiloxane (silicone oil) as the main component; polyether-based defoamer, which has good compatibility and is environmentally friendly, especially suitable for high-temperature environments; defoamer specifically for oxy-fuel combustion; or high-temperature resistant defoamer.

[0030] Further, please refer to Figure 1 In some embodiments, the defoamer spraying method for glass furnaces further includes the step of placing the spray gun 100 at the bottom of the glass furnace 20. If the spray gun 100 is placed at the breast wall of the glass furnace 20, holes need to be drilled in that area. This secondary drilling in the breast wall of the high-temperature zone severely compromises the integrity and structural strength of the refractory material, affecting not only the safe operation and service life of the glass furnace 20, but also complicating construction, increasing costs, and easily wasting defoamer. Therefore, placing the spray gun 100 at the bottom of the glass furnace 20 effectively avoids these problems. It should be noted that there are usually holes at the bottom of the glass furnace 20, so when placing the spray gun 100 there, there is no need for secondary drilling, which also saves construction costs.

[0031] Furthermore, after setting the spray gun 100 at the bottom of the glass furnace 20, if the spray gun 100 cannot spray defoamer to some areas inside the glass furnace 20, this can be solved by adjusting the angle of the spray gun 100. Specifically, in some embodiments, the defoamer spraying method for the glass furnace further includes the following step: adjusting the angle of the spray gun 100 so that the spray gun 100 sprays onto areas where foam is concentrated. Adjusting the angle of the spray gun 100 specifically refers to adjusting the tilt angle of the spray gun 100 in the front-back direction, using a handheld spray gun 100 or a tool clamp as a reference. For example, the minimum angle between the spray gun 100 and the front-back direction can be 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, or 90 degrees. Adjusting the angle of the spray gun 100 can also be achieved by using a handheld or clamped spray gun 100 as a reference to adjust its tilt angle in the left and right directions. For example, the minimum angle between the spray gun 100 and the left and right directions can be 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, or 90 degrees. Adjusting the angle of the spray gun 100 can also be achieved by adjusting its height in the vertical direction. In this way, adjusting the spray gun 100 allows it to oscillate along three axes, enabling it to spray defoamer onto areas of concentrated foam. After adjusting the angle, the spray gun 100 gains considerable flexibility, making it suitable for any scenario requiring foam elimination.

[0032] Furthermore, in some embodiments, the defoamer spraying method for the glass furnace further includes the following steps: adjusting the flow rate and atomization pressure of the defoamer sprayed by the spray gun 100. Specifically, adjusting the flow rate of the defoamer sprayed by the spray gun 100 refers to increasing or decreasing the flow rate of the defoamer sprayed into the glass furnace 20. When the flow rate of the sprayed defoamer is higher, this can handle situations with excessive foam accumulation, thereby eliminating the foam. When the flow rate of the sprayed defoamer is lower, this can handle situations with less foam accumulation, thus not only eliminating the foam but also saving on the amount of defoamer used, resulting in cost savings. Adjusting the atomization pressure of the defoamer sprayed by the spray gun 100 specifically refers to the process where the atomization pressure is applied to the liquid by a high-pressure system, causing the liquid to be dispersed into tiny droplets as it passes through the nozzle; that is, the defoamer can enter the glass furnace 20 through atomization. By controlling the atomization pressure, the size of the defoamer droplets can be increased or decreased, thereby improving the foam elimination effect in the glass furnace 20. One method for atomizing defoamer is to install a pressure regulating valve before the atomizing gas pipeline. The main pipeline gas supply pressure can reach 0.4 MPa, and the regulating valve can adjust the pressure range from 0.2 MPa to 0.4 MPa.

[0033] Further, a specific step of a defoamer spraying method for a glass furnace may be as follows: S1: Install the spray gun 100 at a predetermined position at the bottom of the glass furnace 20; S2: Set the insertion depth, horizontal angle, and pitch angle of the spray gun 100, wherein the insertion depth can be 100mm, the horizontal angle is 0 degrees, and the pitch angle is 80°; S3: Observe the foam distribution inside the glass furnace 20; S4: Based on the observation results, finely adjust the position of the spray gun 100, change the spray angle and coverage area of ​​the spray gun 100, until the defoamer atomization flow can accurately cover the area where the foam is most concentrated; S5: Adjust the defoamer flow rate and atomization pressure of each spray gun 100 to match the defoaming requirements of its coverage area; S6: Solidify the optimal spray gun 100 position and flow rate / pressure parameters for long-term stable operation. The parameters may be: spray gun 100 horizontal angle 0°, pitch angle 80°; insertion depth 180mm; atomization gas pressure 0.28Mpa; defoamer flow rate 8 (L / h) or 6 (L / h).

[0034] In some embodiments, a defoamer spraying device 10 for a glass kiln is used in a defoamer spraying method for a glass kiln according to any of the above embodiments. Please refer to... Figure 1A defoamer spraying device 10 for glass kilns includes a spray gun 100 and an adjusting component 200. The spray gun 100 is capable of spraying defoamer. The adjusting component 200 is connected to the spray gun 100 and can adjust the position of the spray gun 100. Specifically, by adjusting the position of the spray gun 100, the spray gun 100 can spray defoamer onto areas where foam is concentrated, thus ensuring precise coverage of the foam accumulation area and effectively eliminating foam. In particular, the defoamer spraying device 10 for glass kilns has a high foam elimination efficiency.

[0035] Further, please refer to Figure 3 The spray gun 100 has an atomizing gas inlet 110 and a defoamer inlet 120. The atomizing gas and defoamer enter the spray gun 100 through the atomizing gas inlet 110 and the defoamer inlet 120 respectively, mix, and then spray into the glass furnace 20. Specifically, adjusting the position of the spray gun 100 refers to adjusting its spatial position within the glass furnace 20. For example, after setting a three-dimensional coordinate system within the glass furnace 20, the spray gun 100 can move in all three directions for adjustment.

[0036] Furthermore, the specific structure of the adjustment component 200 is described below to illustrate how to adjust the position of the spray gun 100. Please refer to... Figure 1 and Figure 2 In some embodiments, the adjustment assembly 200 includes a slide rail 210 and a slider 220. The slider 220 is slidably connected to the slide rail 210 and connected to the spray gun 100. The slider 220 can slide on the slide rail 210 to adjust the height of the spray gun 100. Specifically, by adjusting the height of the spray gun 100, the depth of the spray gun 100 in the glass furnace 20 can be adjusted, thereby bringing the spray gun 100 closer to the foam area and improving the foam removal effect.

[0037] Further, please refer to Figure 1 and Figure 2 In some embodiments, the slider 220 is rotatably connected to the spray gun 100. Specifically, the rotatable connection of the spray gun 100 to the slider 220 can be such that the tail of the spray gun 100 is rotatably connected to the slider 220, after which the head of the spray gun 100 can rotate with the tail as a fulcrum. (See reference...) Figure 1 and Figure 2 ,by Figure 1 and Figure 2As shown in the example, after the spray gun 100 is rotatably connected to the slider 220, the spray gun 100 can swing in the back-and-forth direction. Furthermore, when the slider 220 slides, the spray gun 100 can also move in the up-and-down direction. In this way, the spray gun 100 can be flexibly aimed at various positions within the glass furnace 20, thereby precisely eliminating foam. It should be noted that the specific structure of the slider 220 rotatably connecting to the spray gun 100 is as follows: a fixing member is sleeved on the spray gun 100, and through holes are provided on the fixing member and the slide rail 210. Bolts pass through the through holes. Loosening the bolts allows the fixing member to rotate, driving the spray gun 100 to rotate. Tightening the bolts fixes the spray gun 100, preventing it from rotating relative to the sliding mechanism.

[0038] Further, please refer to Figure 1 and Figure 2 In some embodiments, the adjustment assembly 200 includes a bracket 230 and a base 240, with both ends of the bracket 230 connected to the base 240 and the slide rail 210, respectively. Specifically, after the two ends of the bracket 230 are connected to the base 240 and the slide rail 210, the slide rail 210 can be tilted. In addition, the bracket 230 can also support the slide rail 210, thereby effectively preventing the slide rail 210 from shifting.

[0039] Furthermore, in some embodiments, multiple supports 230 are provided, and the lengths of the multiple supports 230 are different. Any support 230 can be detachably connected to the base 240 and the slide rail 210 to change the tilt angle between the slide rail 210 and the horizontal plane. Specifically, one end of the support 230 can be connected to the side of the slide rail 210. By selecting supports 230 of different lengths, the tilt angle of the slide rail 210 can be changed. For example, the tilt angle between the slide rail 210 and the horizontal plane can be 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, or 90 degrees. (Refer to...) Figure 1 and Figure 2 ,by Figure 1 and Figure 2 As shown in the example, after the spray gun 100 rotates and connects to the slider 220, the spray gun 100 can swing in the back-and-forth direction. Furthermore, when the slider 220 slides, the spray gun 100 can also move in the up-and-down direction. Additionally, by selecting brackets 230 of different lengths, the spray gun 100 can also swing in the left-and-right direction. Thus, the spray gun 100 can achieve three-axis swing, thereby adjusting its position within the glass furnace 20 and achieving precise foam removal. Besides changing the tilt angle of the slide rail 210 by using brackets 230 of different lengths, bolts can also be installed between the brackets 230 and the slide rail 210. By tightening the bolts, the distance between the brackets 230 and the slide rail 210 can be shortened or increased, thereby changing the tilt angle of the slide rail 210.

[0040] Further, please refer to Figure 3 In some embodiments, a defoamer spraying device 10 for a glass furnace further includes a sleeve 300, which is fitted onto the spray gun 100, forming a cooling chamber between the sleeve 300 and the spray gun 100. The cooling chamber is used for the introduction and discharge of a cooling medium. Specifically, the temperature in the glass furnace 20 is high. To prevent damage to the spray gun 100 due to high temperature, the sleeve 300 and cooling chamber are installed to cool the spray gun 100, thereby protecting it and extending its service life. The cooling medium can be water or other cooling liquids. The cooling chamber has an inlet 400 and an outlet 500.

[0041] In some embodiments, a defoamer injection device 10 for a glass furnace further includes multiple spray guns 100. The multiple spray guns 100 can be individually or collectively arranged at the bottom of one or more glass furnaces 20. The defoamer injection device 10 for a glass furnace also includes a storage tank system for storing the defoamer, wherein the storage tank system adopts a dual-tank parallel configuration, one for backup, which ensures a continuous and stable supply. The defoamer injection device 10 for a glass furnace also includes a power system, which includes a defoamer delivery pump and a compressed air source providing atomization power. The defoamer injection device 10 for a glass furnace also includes a flow and pressure control unit, wherein each defoamer spray gun 100 is equipped with an independent flow meter and pressure regulating valve to achieve independent and precise control of the injection parameters of each spray gun 100.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A method for spraying defoamer in a glass furnace, characterized in that, Includes the following steps: Observe the distribution of foam inside the glass furnace; Based on the observations, spray the foam directly onto the concentrated area.

2. The defoamer spraying method for a glass kiln according to claim 1, characterized in that, It also includes the step of placing the spray gun at the bottom of the glass furnace.

3. The defoamer spraying method for a glass kiln according to claim 1, characterized in that, It also includes the step of adjusting the angle of the spray gun so that the spray gun sprays onto the area where the foam is concentrated.

4. The defoamer spraying method for a glass kiln according to claim 1, characterized in that, It also includes the following steps: adjusting the flow rate and atomization pressure of the defoamer sprayed by the spray gun.

5. A defoamer spraying device for a glass furnace, used in the defoamer spraying method for a glass furnace according to any one of claims 1 to 4, characterized in that, The defoamer spraying device for glass furnaces includes: spray gun; An adjustment component is connected to the spray gun, and the adjustment component is capable of adjusting the position of the spray gun.

6. The defoamer spraying device for a glass kiln according to claim 5, characterized in that, The adjustment assembly includes a slide rail and a slider. The slider is slidably connected to the slide rail and connected to the spray gun. The slider can slide on the slide rail to adjust the height of the spray gun.

7. A defoamer spraying device for a glass kiln according to claim 6, characterized in that, The slider is rotatably connected to the spray gun.

8. A defoamer spraying device for a glass kiln according to claim 6, characterized in that, The adjustment assembly includes a bracket and a base, with both ends of the bracket connected to the base and the slide rail, respectively.

9. A defoamer spraying device for a glass kiln according to claim 8, characterized in that, The bracket is provided in multiple ways, and the multiple brackets have different lengths. Any bracket can be detachably connected to the base and the slide rail to change the tilt angle between the slide rail and the horizontal plane.

10. A defoamer spraying device for a glass kiln according to claim 5, characterized in that, It also includes a sleeve, which is fitted onto the spray gun, and a cooling chamber is formed between the sleeve and the spray gun, the cooling chamber being used for the introduction and discharge of cooling medium.

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