Glass kiln flue structure and glass kiln

Abstract

The utility model provides a glass kiln flue structure and a glass kiln. The glass kiln flue structure comprises an exhaust flue, a settling chamber and an air inducing flue, the starting end of the exhaust flue is connected with the glass kiln, and the tail end is connected with the settling chamber; a settling partition wall is arranged between the settling chamber and the exhaust flue, a first vent hole is formed in the center of the settling partition wall, a second vent hole is formed in the edge of the settling partition wall, and the width of the first vent hole is smaller than that of the second vent hole; the tail end of the air inducing flue is connected with the air inducing mechanism; an air supplementing opening is formed in the position, at the preset distance of the downstream of the settling chamber, of the side wall of the air inducing flue, and an inner cavity of the air inducing flue communicates with the external space through the air supplementing opening. By designing the three-section type flue structure, through the buffering effect of the exhaust flue and the settling chamber, the blocking effect of the settling partition wall and the air supplementing effect of the air supplementing opening, dust can be rapidly removed, the influence of air pressure fluctuation on the kiln pressure in the dust removal process can be reduced, and therefore the dust removal efficiency is considered, and the kiln pressure is kept stable.

Description

Technical Field

[0001] This application relates to the field of glass furnace flue technology, and more specifically, to a glass furnace flue structure and a glass furnace. Background Technology

[0002] Current industrial production places increasingly stringent demands on environmental protection. The production of pharmaceutical glass generates a large amount of dust, making dust removal extremely difficult. This necessitates increasingly stringent dust control requirements in pharmaceutical glass kilns. Furthermore, dust removal within the flue can cause fluctuations in the kiln pressure, thus affecting the stability of the production process. Existing technologies, such as Chinese patent CN201621441604.0, disclose a flue gas treatment device for an all-oxygen glass kiln, which uses a humidification tower to absorb water from the flue gas. However, the humidification process and the humidification tower structure are complex, and the solution causes significant corrosion to the equipment, resulting in high maintenance costs. Therefore, to facilitate dust removal and maintain stable kiln pressure, a flue gas structure capable of rapid settling in a gaseous state is needed. Utility Model Content

[0003] This application provides a glass furnace flue structure and a glass furnace to solve the problems of large amount of flue gas dust and higher cleaning requirements in existing glass furnaces.

[0004] According to one aspect of this application, a glass furnace flue structure is provided, comprising: an exhaust flue, a settling chamber, and an induced draft flue;

[0005] The exhaust flue is connected at the beginning to the flue of the glass furnace and at the end to the settling chamber.

[0006] A settlement partition wall is installed between the settlement chamber and the exhaust flue. A first ventilation hole is installed in the center of the settlement partition wall, and a second ventilation hole is installed at the edge. The width of the first ventilation hole is smaller than that of the second ventilation hole.

[0007] The beginning of the induced draft flue is connected to the settling chamber, and the end is connected to the induced draft mechanism. At a predetermined distance downstream of the settling chamber, an air supply port is provided on the side wall of the induced draft flue, which connects the inner cavity of the induced draft flue with the external space.

[0008] In some embodiments, a plurality of first ventilation holes are provided, each of which is a horizontal strip and arranged longitudinally; a plurality of second ventilation holes are provided, each of which is a vertical strip and arranged longitudinally on both sides of the first ventilation holes.

[0009] In some embodiments, the settlement partition wall is rectangular in shape, with two first ventilation holes located on the center line of the settlement partition wall; and four second ventilation holes located at the four corners of the settlement partition wall.

[0010] In some embodiments, a gate is provided at the air supply inlet. The gate is a sliding installation structure, and the opening size of the air supply inlet can be adjusted by sliding displacement.

[0011] In some embodiments, both the settling chamber and the induced draft flue are provided with dust removal side doors.

[0012] In some embodiments, the exhaust flue, settling chamber, and induced draft flue are all made of high-temperature refractory material, and the refractory rating of the material increases as it approaches the glass furnace.

[0013] In some embodiments, an air intake opening is provided at the end of the induced draft flue, the air intake opening narrows inward relative to the inner cavity of the induced draft flue, and the air intake mechanism connected to the air intake opening is a dust collector induced draft fan.

[0014] In some embodiments, the exhaust flue extends vertically downwards after being drawn out from the glass furnace, and the settling chamber and the induced draft flue are arranged horizontally on the ground in sequence, located on the side of the end of the exhaust flue.

[0015] In some embodiments, a perforated plate baffle is provided between the settling chamber and the induced draft flue, and the settling chamber and the induced draft flue are connected through the perforated plate baffle.

[0016] According to another aspect of this application, a glass furnace is provided, wherein a furnace flue is provided above the main body of the glass furnace, and the end of the furnace flue is connected to the glass furnace flue structure as described above, wherein the exhaust flue extends vertically downward, and the settling chamber and the induced draft flue are horizontally disposed away from the glass furnace.

[0017] The glass furnace flue structure, applying the technical solution of this application, includes: an exhaust flue, a settling chamber, and an induced draft flue. The exhaust flue is connected to the glass furnace at its beginning and to the settling chamber at its end. A settling partition wall is provided between the settling chamber and the exhaust flue. A first ventilation hole is provided in the center of the settling partition wall, and a second ventilation hole is provided at its edge. The width of the first ventilation hole is smaller than that of the second ventilation hole. The induced draft flue is connected to the settling chamber at its beginning and to the induced draft mechanism at its end. At a predetermined distance downstream of the settling chamber, a make-up air inlet is provided on the side wall of the induced draft flue, which connects the inner cavity of the induced draft flue to the external space. This application, through the design of a three-section flue structure, uses the exhaust flue to guide the glass furnace flue gas to the settling chamber for dust removal. Through the buffering effect of the exhaust flue and the settling chamber, the blocking effect of the settling partition wall, and the air replenishment effect of the make-up air inlet, the impact of air pressure fluctuations during the dust removal process on the kiln pressure is reduced. Furthermore, this application features a settling partition wall with a first ventilation hole and a second ventilation hole, which allows flue gas to generate eddies behind the wall due to uneven air pressure as it passes through, thereby accelerating gas impact and achieving rapid settling of large dust particles, thus balancing dust removal efficiency and kiln pressure stability. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This invention provides a schematic diagram of the overall structure of a glass furnace flue according to an embodiment of the present application.

[0021] Figure 2 A front view of the settlement partition wall of the glass kiln flue structure according to an embodiment of this application is shown.

[0022] The above figures include the following reference numerals:

[0023] 1. Exhaust flue; 2. Settling chamber; 3. Induced air flue; 31. Make-up air inlet; 32. Induced air opening; 4. Glass kiln; 41. Kiln flue; 5. Settling partition wall; 51. First ventilation hole; 52. Second ventilation hole; 6. Perforated plate baffle wall. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] Figure 1 and Figure 2 An embodiment of the glass furnace flue structure of this application is schematically shown.

[0030] like Figure 1 and Figure 2As shown, a glass furnace flue structure includes: an exhaust flue 1, a settling chamber 2, and an induced draft flue 3. The exhaust flue 1 is connected at its beginning to the furnace flue 41 of the glass furnace 4, and at its end to the settling chamber 2. A settling partition wall 5 is provided between the settling chamber 2 and the exhaust flue 1. A first ventilation hole 51 is provided at the center of the settling partition wall 5, and a second ventilation hole 52 is provided at its edge. The width of the first ventilation hole 51 is smaller than that of the second ventilation hole 52. The induced draft flue 3 is connected at its beginning to the settling chamber 2, and at its end to an induced draft mechanism. At a predetermined distance downstream of the settling chamber 2, a make-up air inlet 31 is provided on the side wall of the induced draft flue 3, which connects the inner cavity of the induced draft flue 3 to the external space.

[0031] Through the above structural design, this embodiment of the application designs a three-section flue structure. The exhaust flue 1 guides the flue gas from the glass kiln 4 to the settling chamber 2 for dust removal. The buffering effect of the exhaust flue 1 and the settling chamber 2, the blocking effect of the settling partition wall 5, and the air supply effect of the air inlet 31 reduce the impact of air pressure fluctuations on the kiln pressure during the dust removal process. Furthermore, this application includes a settling partition wall 5 with a first ventilation hole 51 and a second ventilation hole 52. This allows the flue gas to generate vortices behind the wall due to uneven air pressure as it passes through, accelerating gas impact and achieving rapid settling of large dust particles, thus ultimately balancing dust removal efficiency and kiln pressure stability.

[0032] In some embodiments of this application, such as Figure 2 As shown, multiple first ventilation holes 51 are provided, all of which are horizontal strips arranged longitudinally. Multiple second ventilation holes 52 are provided, all of which are vertical strips arranged longitudinally on both sides of the first ventilation holes 51. The settling partition wall 5 uses the wider second ventilation holes 52 on both sides to achieve airflow diversion on both sides, and uses the narrower first ventilation holes 51 to accelerate the airflow in the middle. When flue gas passes through the settling partition wall 5, the wind speed in the middle is the fastest while that on both sides is slower, thus creating uneven pressure behind the wall. This generates vortices in the settling chamber 2, accelerating gas impact and thus accelerating dust settling. This application achieves accelerated dust removal of flue gas by adjusting the size and distribution of the ventilation holes in the settling partition wall 5. Compared with dust removal methods such as water spraying, the structure is simple and there is no sudden temperature drop, while meeting the environmental protection requirements for flue gas treatment.

[0033] In some embodiments of this application, such as Figure 2 As shown, the settlement partition wall 5 is rectangular in shape. There are two first ventilation holes 51 located on the center line of the settlement partition wall 5, which provide central acceleration for the flow of flue gas. There are four second ventilation holes 52 located at the four corners of the settlement partition wall 5, which realizes the diversion of flue gas flow around the perimeter.

[0034] In the embodiments of this application, such as Figure 1As shown, the air inlet 31 introduces outside air, replenishing and accelerating the air in the induced draft flue 3, thereby balancing the pressure inside the glass furnace 4, preventing dust removal from affecting the kiln pressure, and maintaining stable kiln pressure. Simultaneously, the air inlet also extends the settling range of dust in the induced draft flue 3 by supplementing outside air, preventing dust from accumulating at the connection between the settling chamber 2 and the induced draft flue 3, thus avoiding flue blockage that could affect air pressure control and flue gas emissions.

[0035] In some embodiments of this application, a gate is provided at the air supply port 31. The gate is a sliding installation structure that can slide and move to adjust the opening size of the air supply port 31, thereby facilitating the adjustment of the air supply volume and adjusting the pressure of the glass furnace 4 in real time according to the induced draft pressure to maintain stable kiln pressure without fluctuation.

[0036] In some embodiments of this application, in order to facilitate dust cleaning, the sides of the settling chamber 2 and the induced draft flue 3 are provided with dust cleaning side doors, which can be easily opened to remove dust.

[0037] In some embodiments of this application, a dust collection trough is provided inside the settling chamber 2. The dust collection trough has a pull-out structure, which can be pushed into the settling chamber 2 through the side wall and easily pulled out after being filled with dust, achieving rapid dust removal and reducing the amount of dust removal work. Correspondingly, a guide groove is provided on the bottom surface of the settling chamber 2. The guide groove can provide pull-out guidance for the dust collection trough and at the same time provide horizontal positioning for the dust collection trough, preventing the dust collection trough from being displaced due to the impact of flue gas under negative pressure.

[0038] In a preferred embodiment of this application, the settling partition wall 5 and the pull-out ash collection trough are integrated into one structure, allowing it to be removed along with the ash collection trough for easy cleaning of adhering dust by workers, thus preventing the first ventilation hole 51 and the second ventilation hole 52 from becoming clogged due to prolonged use. Furthermore, a sealing ring is provided on the side of the settling chamber 2 facing the exhaust flue 1. This sealing ring can be used to tightly cover the gap between the settling partition wall 5 and the side wall of the settling chamber 2, allowing the main body of flue gas to flow through the first ventilation hole 51 and the second ventilation hole 52, ensuring that the settling partition wall 5 generates a flue gas vortex to accelerate dust settling.

[0039] In some embodiments of this application, such as Figure 1 As shown, a perforated plate baffle 6 is provided between the settling chamber 2 and the induced draft flue 3. The perforated plate baffle 6 also has ventilation holes. The settling chamber 2 and the induced draft flue 3 are connected through the perforated plate baffle 6 to facilitate flue gas circulation. In a preferred embodiment of this application, the perforated plate baffle 6 is also integrated with the ash collection trough, allowing for easy removal and dust cleaning to keep the ventilation holes unobstructed.

[0040] In some embodiments of this application, such as Figure 1 and Figure 2As shown, the exhaust flue 1, settling chamber 2, and induced draft flue 3 are all made of high-temperature refractory materials, such as fused zirconia corundum, mullite, and sillimanite. Furthermore, the fire resistance rating of each structure increases as it approaches the glass furnace 4, so as to protect the stability of the flue structure through its fire-resistant properties.

[0041] In some embodiments of this application, such as Figure 1 As shown, an air intake opening 32 is provided at the end of the exhaust duct 3. The air intake opening 32 narrows inward relative to the inner cavity of the exhaust duct 3 to facilitate connection to the air intake mechanism. In this embodiment, the air intake mechanism connected to the air intake opening 32 is a dust collector fan. The dust collector fan can further collect the remaining dust in the flue gas, providing environmentally friendly treatment for the flue gas from glass production, thereby realizing both economic and environmental benefits in glass production.

[0042] This application also discloses a glass furnace. (Reference) Figure 1 As shown, a furnace flue 41 is provided above the main body of the glass furnace 4, and the end of the furnace flue 41 is connected to the glass furnace flue structure as described in the above embodiment. The exhaust flue 1 extends vertically downwards after connecting to the furnace flue 41, while the settling chamber 2 and the induced draft flue 3 are horizontally positioned away from the glass furnace. The exhaust flue 1 extends vertically downwards from the glass furnace 4, guiding the flue gas from a high position to the ground, accelerating dust settling under gravity, and simultaneously guiding the flue gas to the ground for easy dust removal. The settling chamber 2 and the induced draft flue 3 are horizontally positioned on the ground, located on the side of the end of the exhaust flue 1, to achieve horizontal settling and collection of flue gas dust, and to supplement air to further balance the kiln pressure.

[0043] Combination Figure 1 and Figure 2 The following diagram illustrates the working principle of this application:

[0044] This application Figure 1 The main structure shown includes a glass furnace 4, a furnace flue 41, an exhaust flue 1, a settling partition wall 5, a settling chamber 2, and an induced draft flue 3. The exhaust flue 1 is directly connected to the furnace flue 41 of the glass furnace 4 body and can be located at the front or side of the glass furnace 4. The main structures of the exhaust flue 1, settling chamber 2, and induced draft flue 3 are constructed using refractory materials, such as fused zirconia corundum, mullite, and sillimanite, with higher temperature resistance levels for materials closer to the glass furnace 4. During the glass furnace 4's molten glass production process, the dust collector's induced draft fan extracts gas through the induced draft opening 32, creating a negative pressure throughout the flue structure. Under the extraction action of the dust collector's induced draft fan, the flue gas flows from the glass furnace 4 along the flue structure to the induced draft flue 3, and its temperature gradually decreases during this flow. As the flue gas temperature changes from high to low, the flue gas dust gradually cools and settles, achieving dust removal. The size and location of the ventilation holes in settlement partition wall 5 are as follows: Figure 2As shown, the airflow is separated by wider second ventilation holes 52 on both sides, and the central gas is accelerated by a narrower, elongated first ventilation hole 51 in the middle. Thus, within the settling chamber 2, the wind speed is fastest in the middle and slower on both sides. Combined with the make-up air inlet 31 downstream of the settling chamber 2, the flue gas forms a vortex within the settling chamber 2, causing the heavier components to settle at the bottom of the settling chamber 2. Furthermore, because the make-up air inlet 31 is added above the induced draft flue 3, the wind speed is accelerated at this point. This extends the range of dust in the flue gas as it enters the induced draft flue 3, preventing it from concentrating at the connection between the settling chamber 2 and the induced draft flue 3, thus avoiding flue blockage that could affect the induced draft and maintaining controllable pressure within the glass furnace 4. Finally, dust removal side doors are provided on the sides of both the settling chamber 2 and the induced draft flue 3 for easy dust removal.

[0045] In summary, the glass furnace flue structure of this application embodiment includes: an exhaust flue, a settling chamber, and an induced draft flue. The exhaust flue is connected to the glass furnace at its beginning and to the settling chamber at its end. A settling partition wall is provided between the settling chamber and the exhaust flue. A first ventilation hole is provided in the center of the settling partition wall, and a second ventilation hole is provided at its edge. The width of the first ventilation hole is smaller than that of the second ventilation hole. The induced draft flue is connected to the settling chamber at its beginning and to the induced draft mechanism at its end. At a predetermined distance downstream of the settling chamber, a make-up air port is provided on the side wall of the induced draft flue, which connects the inner cavity of the induced draft flue to the external space. This application, by designing a three-section flue structure, uses the exhaust flue to guide the glass furnace flue gas to the settling chamber for dust removal. Through the buffering effect of the exhaust flue and the settling chamber, the blocking effect of the settling partition wall, and the air replenishment effect of the make-up air port, the impact of air pressure fluctuations during the dust removal process on the kiln pressure is reduced. Furthermore, this application features a settling partition wall with a first ventilation hole and a second ventilation hole, which allows flue gas to generate eddies behind the wall due to uneven air pressure as it passes through, thereby accelerating gas impact and achieving rapid settling of large dust particles, thus balancing dust removal efficiency and kiln pressure stability.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A glass furnace flue structure, characterized by, The application relates to a glass kiln flue structure. The exhaust flue (1), the settling chamber (2) and the induced draft flue (3); The initial end of the exhaust flue (1) is connected with a kiln flue (41) of a glass kiln (4), and the terminal end is connected with the settling chamber (2); The settling partition wall (5) is provided between the settling chamber (2) and the exhaust flue (1), the central position of the settling partition wall (5) is provided with a first ventilation hole (51), and the edge position is provided with a second ventilation hole (52), the width of the first ventilation hole (51) is smaller than that of the second ventilation hole (52); The initial end of the induced draft flue (3) is connected with the settling chamber (2), and the terminal end is connected with an induced draft mechanism; a supplementary air inlet (31) is arranged on the side wall of the induced draft flue (3) at a predetermined distance downstream of the settling chamber (2), and the supplementary air inlet (31) communicates the inner cavity of the induced draft flue (3) with the external space.

2. The glass furnace flue structure of claim 1, wherein, The first ventilation hole (51) is provided with a plurality of horizontal strip-shaped longitudinal arrangements, and the second ventilation hole (52) is provided with a plurality of vertical strip-shaped longitudinal arrangements on both sides of the first ventilation hole (51).

3. The glass furnace flue structure of claim 2, wherein, The settling partition wall (5) is rectangular, the first ventilation hole (51) is provided with two central lines on the settling partition wall (5), and the second ventilation hole (52) is provided with four corner lines on the settling partition wall (5).

4. The glass furnace flue structure of claim 1, wherein, The supplementary air inlet (31) is provided with a gate plate, the gate plate is a sliding installation structure, and the opening size of the supplementary air inlet (31) can be adjusted by sliding displacement.

5. The glass furnace flue structure of claim 1, wherein, The side of the settling chamber (2) and the side of the induced draft flue (3) are provided with ash removal side doors.

6. The glass furnace flue structure of claim 1, wherein, The exhaust flue (1), the settling chamber (2) and the induced draft flue (3) are all made of high-temperature-resistant refractory materials, and the refractory grade of the materials is improved as the glass kiln (4) is approached.

7. The glass furnace flue structure of claim 1, wherein The terminal end of the induced draft flue (3) is provided with an induced draft opening (32), the induced draft opening (32) is inwardly narrowed relative to the inner cavity of the induced draft flue (3), and the induced draft mechanism connected at the induced draft opening (32) is a dust collector induced draft fan.

8. The glass furnace flue structure of claim 1, wherein, The exhaust flue (1) extends vertically downward after being drawn out of the glass kiln (4), the settling chamber (2) and the induced draft flue (3) are sequentially arranged horizontally on the ground and located on the terminal side of the exhaust flue (1).

9. The glass furnace flue structure of claim 1, wherein, A hole plate retaining wall (6) is arranged between the settling chamber (2) and the induced draft flue (3), and the settling chamber (2) and the induced draft flue (3) are communicated through the hole plate retaining wall (6).

10. A glass furnace, characterized in that a furnace flue (41) is provided above the body of the glass furnace (4), The terminal end of the kiln flue (41) is connected with the glass kiln flue structure of any one of claims 1 to 9, wherein the exhaust flue (1) is arranged vertically downward, and the settling chamber (2) and the induced draft flue (3) are arranged horizontally away from the glass kiln.

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