Glass kiln flue gas treatment device

Abstract

The utility model discloses a glass kiln flue gas treatment device which comprises a shell, a filter assembly, a reactor, a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is connected with the lower end of the shell, the gas outlet pipe is connected with the upper end of the shell, the filter assembly is arranged in the shell and located between the gas inlet pipe and the gas outlet pipe, and the reactor is arranged between the shell and the gas outlet pipe. The air inlet pipe is used for conveying flue gas into the shell, the filter assembly is used for filtering particulate matters in the flue gas, the reactor is used for denitrating the flue gas, the air outlet pipe is used for discharging the flue gas, a plurality of guide plates are arranged between the reactor and the air outlet pipe, the guide plates are connected with driving equipment, the driving equipment is electrically connected with the controller, and the driving equipment is used for driving the guide plates to rotate by an angle; the controller is used for controlling the driving equipment; through filtration and denitration treatment, emission of pollutants in flue gas is effectively reduced, the angle of the guide plate is adjustable, the denitration efficiency and the adaptability of the device can be improved, and the flue gas is more uniform and smoother.

Description

Technical Field

[0001] This application relates to the field of flue gas treatment technology, and in particular to a flue gas treatment device for glass kilns. Background Technology

[0002] Glass furnace flue gas is a complex waste gas generated during the glass production process. It mainly comes from fuel combustion, raw material melting and batch volatilization. Glass furnace flue gas is characterized by high temperature (usually above 1000℃), complex composition (containing particulate matter, SO2, NOx, fluorides, heavy metals and VOCs, etc.) and strong corrosiveness.

[0003] With increasingly stringent environmental standards, traditional flue gas treatment processes for glass kilns are no longer sufficient to meet current environmental governance needs. Metal tube filter dust collectors, with their advantages such as synergistic pollutant removal and compact structure, have gained widespread attention in the glass industry.

[0004] Existing metal tube dust collectors can achieve synergistic denitrification and dust removal. To ensure the uniformity of the flow field, a flow guiding device is installed at the bend of the outlet flue of the metal tube dust collector. However, this method has significant drawbacks: on the one hand, the fixed-angle flow guide plate is difficult to adapt to the airflow changes under different working conditions, which limits the flexibility and adaptability of the system; on the other hand, the traditionally designed flow guide plate often ignores the non-uniformity of airflow distribution and only focuses on the flow guiding function, while ignoring the non-uniform impact resistance that the airflow may generate on the top plate. This not only affects the mixing efficiency, but may also accelerate equipment wear and reduce service life. Utility Model Content

[0005] The main purpose of this application is to propose a glass kiln flue gas treatment device, which aims to solve the problems of poor flexibility and adaptability of the guide plate in existing metal filter tube dust collectors.

[0006] To achieve the above objectives, the glass furnace flue gas treatment device proposed in this application includes: a shell, a filter assembly, a reactor, an inlet pipe, and an outlet pipe. The inlet pipe is connected to the lower end of the shell, and the outlet pipe is connected to the upper end of the shell. The filter assembly is disposed inside the shell and located between the inlet pipe and the outlet pipe, and the reactor is disposed between the shell and the outlet pipe.

[0007] The air inlet pipe is used to deliver flue gas into the housing, the filter assembly is used to filter particulate matter in the flue gas, the reactor is used to denitrify the flue gas, and the air outlet pipe is used to discharge the flue gas.

[0008] Multiple guide plates are provided between the reactor and the gas outlet pipe. Each guide plate is connected to a drive device, which is electrically connected to a controller. The drive device is used to drive the guide plates to rotate by an angle, and the controller is used to control the drive device.

[0009] Optionally, the reactor is provided with a mounting frame that is inclined toward the gas outlet pipe, and a plurality of the guide plates are rotatably mounted on the mounting frame via bearings.

[0010] Optionally, the plurality of the guide vanes are evenly distributed on the mounting frame, and the spacing between adjacent guide vanes is greater than the width of the guide vanes.

[0011] Optionally, the driving device includes a first driver and a second driver, and the plurality of guide plates are divided into two equal groups. The first group of guide plates is connected to the first driver through a transmission structure, and the second group of guide plates is connected to the second driver through a transmission structure.

[0012] Optionally, the angles between the guide vanes in the same group are consistent, while the angles between the guide vanes in the first group and the guide vanes in the second group are inconsistent.

[0013] Optionally, the position of the first group of guide vanes is higher than the position of the second group of guide vanes, the rotation angle of the first group of guide vanes is 0° to 70°, and the rotation angle of the second group of guide vanes is 0° to 90°.

[0014] Optionally, the driving device includes a plurality of third drivers, the number of which is the same as the number of guide vanes, and each guide vane is connected to one of the third drivers via a transmission structure.

[0015] Optionally, the angle of each of the deflectors is different.

[0016] Optionally, a differential pressure transmitter is provided between the reactor and the outlet pipe near the guide plate. The differential pressure transmitter is connected to the controller and is used to measure the pressure difference between the reactor and the outlet pipe.

[0017] Optionally, a pulse jet cleaning device is provided inside the housing above the filter assembly, the pulse jet cleaning device is used to blow air onto the filter assembly, and an ash hopper is connected to the lower end of the housing.

[0018] This application's technical solution comprises a shell, a filter assembly, a reactor, an inlet pipe, and an outlet pipe. The inlet pipe connects to the lower end of the shell, and the outlet pipe connects to the upper end. The filter assembly is located inside the shell between the inlet and outlet pipes. The reactor is located between the shell and the outlet pipe. The inlet pipe is used to transport flue gas into the shell, the filter assembly is used to filter particulate matter from the flue gas, the reactor is used for denitrification of the flue gas, and the outlet pipe is used to discharge the flue gas. Multiple guide plates are installed between the reactor and the outlet pipe, and the guide plates are connected to a drive device. The drive device is electrically connected to a controller, which drives the guide plates to rotate, and the controller controls the drive device. In use, the flue gas generated by the glass furnace passes through the inlet pipe. The flue gas enters the casing and first passes through a filter assembly to remove particulate matter. It then enters the reactor for denitrification treatment and is finally guided by a baffle plate to exit through the outlet pipe. The controller controls the drive equipment according to actual conditions, which in turn drives the baffle plate to rotate and adjust its angle. Through filtration and denitrification, pollutant emissions in the flue gas are effectively reduced. The adjustable baffle plate angle allows for adjustments to the flue gas flow based on actual operating conditions, improving denitrification efficiency and the adaptability of the device. The baffle plate angle also ensures more uniform and smooth flue gas flow, and more even mixing of the flue gas with the catalyst (ammonia water / ammonia gas) in the reactor. This reduces the amount of ammonia water / ammonia gas used and minimizes impact on the top of the silo. Attached Figure Description

[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, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the glass furnace flue gas treatment device of this application;

[0021] Figure 2 This is a schematic diagram of the denitrification device in the glass kiln flue gas treatment apparatus of this application;

[0022] Figure 3 This is a schematic diagram illustrating the working principle of the flow guiding component in the glass kiln flue gas treatment device of this application.

[0023] Explanation of icon numbers:

[0024] 1. Shell; 2. Filter assembly; 3. Reactor; 4. Inlet pipe; 5. Outlet pipe; 6. Baffle plate; 7. Mounting bracket; 8. First actuator; 9. Second actuator; 10. Controller; 11. Local differential pressure gauge; 12. Pulse jet cleaning equipment; 13. Flue gas online monitoring system; 14. Ash hopper.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0030] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0031] Existing metal tube dust collectors can achieve synergistic denitrification and dust removal. To ensure the uniformity of the flow field, a flow guiding device is installed at the bend of the outlet flue of the metal tube dust collector. However, this method has significant drawbacks: on the one hand, the fixed-angle flow guide plate is difficult to adapt to the airflow changes under different working conditions, which limits the flexibility and adaptability of the system; on the other hand, the traditionally designed flow guide plate often ignores the non-uniformity of airflow distribution and only focuses on the flow guiding function, while ignoring the non-uniform impact resistance that the airflow may generate on the top plate. This not only affects the mixing efficiency, but may also accelerate equipment wear and reduce service life.

[0032] In view of this, this application proposes a glass kiln flue gas treatment device.

[0033] In the embodiments of this application, reference is made to Figures 1 to 3 The aforementioned glass kiln flue gas treatment device includes: a shell 1, a filter assembly 2, a reactor 3, an inlet pipe 4, and an outlet pipe 5. The inlet pipe 4 is connected to the lower end of the shell 1, and the outlet pipe 5 is connected to the upper end of the shell 1. The filter assembly 2 is disposed inside the shell 1 and located between the inlet pipe 4 and the outlet pipe 5. The reactor 3 is disposed between the shell 1 and the outlet pipe 5. The inlet pipe 4 is used to transport flue gas into the shell 1, the filter assembly 2 is used to filter particulate matter in the flue gas, the reactor 3 is used to denitrify the flue gas, and the outlet pipe 5 is used to discharge the flue gas. Multiple guide plates 6 are provided between the reactor 3 and the outlet pipe 5, and the guide plates 6 are connected to... A drive device is connected to a controller 10. The drive device is used to drive the guide plate 6 to rotate. The controller 10 is used to control the drive device. The filter assembly 2 removes particulate matter from the flue gas, and the denitrification reaction in the reactor 3 reduces the nitrogen oxide content in the flue gas. The guide plate 6 is adjustable in angle to change the flow direction and speed of the flue gas and optimize the flow field distribution of the flue gas. Through filtration and denitrification treatment, the emission of pollutants in the flue gas is effectively reduced. The angle of the guide plate 6 is adjustable, which can adjust the flue gas flow according to the actual working conditions, improve the denitrification efficiency and the adaptability of the device.

[0034] refer to Figure 2The reactor 3 is equipped with an installation frame 7 that is inclined toward the gas outlet pipe 5. Multiple guide plates 6 are rotatably mounted on the installation frame 7 via bearings. The inclined installation frame 7 enables the guide plates 6 to better guide the flue gas, while the bearings ensure that the guide plates 6 can rotate flexibly, making it easy to adjust the angle to control the flue gas flow direction. This helps to optimize the flue gas flow field, reduce the flow resistance of the flue gas in the reactor 3, and improve the denitrification effect.

[0035] refer to Figure 2 Multiple guide vanes 6 are evenly distributed on the mounting frame 7, and the distance between adjacent guide vanes 6 is greater than the width of the guide vane 6; the even distribution ensures that the flue gas can be evenly affected by the guide vanes 6, and the appropriate spacing avoids mutual interference of the flue gas and ensures smooth flue gas flow.

[0036] Specifically, based on the actual situation, the first embodiment of this solution is as follows:

[0037] refer to Figure 3 The driving device includes a first driver 8 and a second driver 9. Multiple guide vanes 6 are divided into two equal groups. The first group of guide vanes 6 is connected to the first driver 8 via a transmission structure, and the second group of guide vanes 6 is connected to the second driver 9 via a transmission structure. The two groups of guide vanes 6 are driven by the first driver 8 and the second driver 9 respectively, and the angles of the two groups of guide vanes 6 can be adjusted independently. The angles of the two groups of guide vanes 6 can be adjusted according to actual needs to more precisely control the flue gas flow field, further improving denitrification efficiency and the flexibility of the device.

[0038] refer to Figure 2 The angles between the same group of guide plates 6 are consistent, while the angles between the first group of guide plates 6 and the second group of guide plates 6 are inconsistent; the combination of guide plates 6 at different angles can form a complex flue gas flow field, allowing the flue gas to flow in different ways in different areas, thereby enhancing the denitrification reaction effect;

[0039] refer to Figure 2 The first set of guide vanes 6 is positioned higher than the second set of guide vanes 6. The rotation angle of the first set of guide vanes 6 is 0° to 70°, specifically the angle at point A in the figure, preferably 45° or 70°. The rotation angle of the second set of guide vanes 6 is 0° to 90°, specifically the angle at point B in the figure, preferably 90°. The different rotation angle ranges and height settings allow the two sets of guide vanes 6 to adjust the flue gas at different heights and angles, optimizing the entire flow field. Setting different rotation angle ranges according to the position of the guide vanes 6 can more rationally control the flue gas flow direction, improve the denitrification effect and the stability of the device.

[0040] Depending on the actual situation, a second embodiment can also be set up:

[0041] The driving device includes multiple third drivers, the number of which is the same as the number of guide vanes 6. Each guide vane 6 is connected to one of the third drivers through a transmission structure. Each guide vane 6 is independently controlled and can precisely adjust its angle according to the local conditions of the flue gas, achieving more refined flow field control. Compared with the first embodiment, this improves the accuracy of flue gas flow field control. Each guide vane 6 can be individually adjusted according to the actual flue gas distribution and denitrification requirements, further improving denitrification efficiency. However, the cost will also increase accordingly.

[0042] Specifically, the angle of each guide vane 6 can be different. Guide vanes 6 with different angles can create a complex and variable flow field for the flue gas, increase the contact opportunities between the flue gas and the denitrification agent, and improve the reaction efficiency.

[0043] refer to Figure 1 A differential pressure transmitter is installed near the guide plate 6 between reactor 3 and outlet pipe 5. The differential pressure transmitter is connected to controller 10 and is used to measure the pressure difference between reactor 3 and outlet pipe 5. The differential pressure transmitter measures the pressure difference between reactor 3 and outlet pipe 5 and transmits the data to controller 10. Controller 10 controls the drive equipment to adjust the angle of guide plate 6 according to the pressure difference. By monitoring the pressure difference in real time and adjusting the angle of guide plate 6, the pressure inside the device can be kept stable, the denitrification efficiency can be improved, and equipment damage caused by abnormal pressure can be avoided.

[0044] Specifically, for cost-saving purposes, a local differential pressure gauge 11 can be used instead of a differential pressure transmitter to directly read the pressure, and the same effect can be achieved by manually controlling the angle of the guide plate 6.

[0045] refer to Figure 1 A pulse jet cleaning device 12 is installed inside the housing 1 above the filter assembly 2. The pulse jet cleaning device 12 is used to blow air onto the filter assembly 2. A dust hopper 14 is connected to the lower end of the housing 1. The pulse jet cleaning device 12 blows air onto the filter assembly 2 periodically, blowing the particles attached to the filter assembly 2 down into the dust hopper 14, preventing the filter assembly 2 from clogging, ensuring the filtration effect and normal operation of the device, extending the service life of the filter assembly 2, and reducing maintenance costs.

[0046] join Figure 1 An online flue gas monitoring system 13 can also be installed on the exhaust duct to detect the emission status of pollutants in the flue gas in real time and determine whether the flue gas meets the emission requirements based on the detected data.

[0047] This application's technical solution comprises a shell, a filter assembly, a reactor, an inlet pipe, and an outlet pipe. The inlet pipe connects to the lower end of the shell, and the outlet pipe connects to the upper end. The filter assembly is located inside the shell between the inlet and outlet pipes. The reactor is located between the shell and the outlet pipe. The inlet pipe is used to transport flue gas into the shell, the filter assembly is used to filter particulate matter from the flue gas, the reactor is used for denitrification of the flue gas, and the outlet pipe is used to discharge the flue gas. Multiple guide plates are installed between the reactor and the outlet pipe, and the guide plates are connected to a drive device. The drive device is electrically connected to a controller, which drives the guide plates to rotate, and the controller controls the drive device. In use, the flue gas generated by the glass furnace passes through the inlet pipe. The flue gas enters the casing and first passes through a filter assembly to remove particulate matter. It then enters the reactor for denitrification treatment and is finally guided by a baffle plate to exit through the outlet pipe. The controller controls the drive equipment according to actual conditions, which in turn drives the baffle plate to rotate and adjust its angle. Through filtration and denitrification, pollutant emissions in the flue gas are effectively reduced. The adjustable baffle plate angle allows for adjustments to the flue gas flow based on actual operating conditions, improving denitrification efficiency and the adaptability of the device. The baffle plate angle also ensures more uniform and smooth flue gas flow, and more even mixing of the flue gas with the catalyst (ammonia water / ammonia gas) in the reactor. This reduces the amount of ammonia water / ammonia gas used and minimizes impact on the top of the silo.

[0048] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A glass furnace off-gas treatment apparatus, characterized by, The utility model relates to a flue gas denitration device, including: a shell, a filter assembly, a reactor, a gas inlet pipe, a gas outlet pipe, the gas inlet pipe is connected the lower end of shell, the gas outlet pipe is connected the upper end of shell, the filter assembly is arranged in the shell and is located between the gas inlet pipe and the gas outlet pipe, the reactor is arranged between the shell and the gas outlet pipe; the gas inlet pipe is used for conveying flue gas into the shell, the filter assembly is used for filtering particulate matters in the flue gas, the reactor is used for denitration of the flue gas, and the gas outlet pipe is used for discharging the flue gas; a plurality of guide plates are arranged between the reactor and the gas outlet pipe, the guide plates are connected with a driving device, the driving device is electrically connected with a controller, the driving device is used to drive the guide plates to rotate at an angle, and the controller is used to control the driving device.

2. The glass furnace flue gas treatment apparatus of claim 1, wherein, A mounting bracket is arranged in the reactor and is inclined towards the gas outlet pipe, and a plurality of guide plates are rotatably mounted on the mounting bracket through bearings.

3. The glass furnace flue gas treatment apparatus of claim 2, wherein, The plurality of guide plates are uniformly distributed on the mounting bracket, and the spacing between adjacent guide plates is greater than the width of the guide plates.

4. The glass furnace flue gas treatment apparatus of claim 2 or 3, wherein The driving device includes a first driver and a second driver, the plurality of guide plates are divided into two equal groups, the first group of guide plates is connected to the first driver through transmission structure, and the second group of guide plates is connected to the second driver through transmission structure.

5. The glass furnace off gas treatment apparatus as in claim 4, wherein, The angles between the guide plates in the same group are consistent, and the angles between the first group of guide plates and the second group of guide plates are inconsistent.

6. The glass furnace off gas treatment apparatus of claim 5, wherein, The position of the first group of guide plates is higher than that of the second group of guide plates, the rotation angle of the first group of guide plates is 0°-70°, and the rotation angle of the second group of guide plates is 0°-90°.

7. The glass furnace flue gas treatment apparatus of claim 2 or 3, wherein The driving device includes a plurality of third drivers, the number of third drivers is consistent with the number of guide plates, and each guide plate is connected to one third driver through transmission structure.

8. The glass furnace flue gas treatment apparatus of claim 7, wherein, The angles of each guide plate are inconsistent.

9. The glass furnace flue gas treatment apparatus of claim 1, wherein, A differential pressure transmitter is arranged between the reactor and the gas outlet pipe close to the guide plates, the differential pressure transmitter is connected with the controller, and the differential pressure transmitter is used to measure the pressure difference between the reactor and the gas outlet pipe.

10. The glass furnace flue gas treatment apparatus of claim 1, wherein, A pulse blowing device is arranged above the filter assembly in the shell, the pulse blowing device is used to blow air to the filter assembly, and a hopper is connected to the lower end of the shell.

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