A pipeline dust removal and pollution discharge device

Abstract

The utility model discloses a pipeline dust removal pollution discharge device to reduce the influence caused by dust settlement in dust removal pipeline to ventilation performance. The device includes the dust guide settlement area of setting in dust removal pipeline, and dust guide settlement area pipe diameter is greater than dust removal pipeline pipe diameter, can make dust-containing airflow velocity reduce, and guide dust concentrated settlement, dust guide settlement area connects the storage barrel, and the air valve is established between both to guide airflow, and the settlement dust can fall into the storage barrel and concentrate temporary storage, the storage barrel connects the material barrel cover, and the discharge valve is established on the material barrel cover, and it is convenient to clean the dust in the barrel in time. Through above -mentioned structure, can avoid dust in dust removal pipeline whole domain accumulation, maintains pipeline effective flow cross section, guarantees main road airflow normal flow, and simultaneously realizes dust convenient non - stop production cleaning through storage barrel and discharge valve, prevents dust blockage, effectively maintains dust removal pipeline ventilation performance stability, guarantees the influence of cleaning dust process to production without disturbance.

Description

Technical Field

[0001] This utility model relates to the field of industrial dust removal technology, specifically to a pipeline dust removal and sewage discharge device. Background Technology

[0002] In the production of TFT-LCD substrate glass, the semi-finished product area requires extremely high cleanliness standards. Strict control of airborne glass dust content is essential to prevent dust adhesion from affecting the optical performance and processing precision of the substrate glass. The dust in this area primarily originates from the cutting operations of the cross-cutting and slitting machines. The glass dust generated during cutting is mixed into the air during these operations, forming a humid airflow containing glass dust. Maintaining a certain humidity level in the production environment is crucial to suppress dust dispersion, resulting in a naturally humid airflow. This dust-laden airflow must be transported to a dust collector via a dedicated dust removal pipeline for purification. The clean air, after being filtered and removed by the dust collector, is either directly discharged or recirculated back to the semi-finished product area, depending on production needs, to ensure a continuously clean environment within the area.

[0003] However, during the flow of humid air containing glass dust along the dust collection pipeline, the glass dust itself has a certain density, and the humid airflow causes some dust particles to adsorb water vapor on their surface, leading to increased dust particle weight and agglomeration, reducing their suspension capacity in the airflow. In actual installation, bends and diameter changes are unavoidable in the dust collection pipeline. When the airflow passes through these sections, velocity fluctuations and local eddies occur, further exacerbating dust particle settling. The settled glass dust gradually accumulates on the inner wall of the dust collection pipeline, reducing the effective flow cross-section and increasing ventilation resistance. This directly affects the ventilation performance of the dust collection pipeline, causing the dust concentration in the semi-finished product area to exceed control standards. If dust continues to settle and accumulate without timely cleaning, it can completely block the dust collection pipeline, causing the dust collection system to malfunction. This not only requires shutdown for pipeline clearing, increasing maintenance costs and the risk of production interruption, but also may cause airflow backflow due to pipeline blockage, causing the collected dust to re-diffly into the semi-finished product area, posing a serious threat to the production quality of the substrate glass.

[0004] Currently, dust removal systems for this scenario have not effectively solved the problem of sedimentation of humid air containing glass dust in the pipeline. Existing pipeline structures lack targeted anti-settling and dust removal designs, making it difficult to meet the stability and reliability requirements of the dust removal system in the TFT-LCD liquid crystal substrate glass semi-finished product area. Therefore, there is an urgent need for a pipeline dust removal and sewage discharge device that can overcome the above defects. Utility Model Content

[0005] The purpose of this invention is to provide a pipeline dust removal and sewage discharge device to reduce the impact of dust settling in the dust removal pipeline on ventilation performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pipeline dust removal and sewage discharge device includes a dust guiding and settling zone installed in the dust removal pipeline, wherein the diameter of the dust guiding and settling zone is larger than the diameter of the dust removal pipeline; The dust-guided settling zone is connected to a storage tank, and an air valve is installed between the storage tank and the dust-guided settling zone to guide the inflow airflow in the dust removal pipeline. The storage hopper is connected to a hopper lid, and a discharge valve is installed on the hopper lid.

[0007] The damper is a double-leaf valve with two or more blades. The blades open and close synchronously to adjust the size of the ventilation cross section.

[0008] The storage tank is equipped with an observation window, and the observation window has a sediment discharge indicator.

[0009] The storage hopper and the hopper lid are connected by a hinge, which allows the hopper lid to rotate around the hinge axis to open and close.

[0010] A quick-release structure is also provided between the storage hopper and the hopper lid to fix the relative position of the hopper lid and the storage hopper when the hopper lid is closed.

[0011] The quick-release structure is an elbow clamp, which is symmetrically distributed on the side of the storage tank and the tank cover that is not connected by a hinge.

[0012] The discharge valve is a shut-off valve. The valve core is made of corrosion-resistant material, and the opening degree of the shut-off valve is adjustable to control the discharge rate of sediment.

[0013] A sealing element is provided between the storage hopper and the hopper lid, and the sealing element is located at the edge of the opening of the storage hopper.

[0014] The inner wall of the dust-guided settling zone has a smooth curved surface structure, and the connection between the dust-guided settling zone and the dust removal pipeline adopts a gradual transition structure to reduce eddies when the airflow passes through.

[0015] The bottom of the inner cavity of the storage hopper is tilted towards the hopper lid.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model provides a pipeline dust removal and sewage discharge device. By setting a dust guiding and settling zone in the dust removal pipeline, the diameter of the zone is larger than that of the dust removal pipeline. This allows the flow velocity of the dust-laden airflow passing through this zone to be naturally reduced, creating a concentrated settling space for dust particles in the airflow. This prevents dust from being dispersed and settling throughout the entire dust removal pipeline with the airflow, thereby reducing the accumulation of dust on the inner wall of the pipeline and ensuring that the dust removal pipeline always maintains a preset effective flow cross section, providing a stable channel for airflow transportation.

[0017] The dust-guiding settling zone is directly connected to the storage hopper. Settled dust falls directly into the hopper by gravity, achieving centralized collection and temporary storage of dust. This prevents dust accumulation and blockage in the dust-guiding settling zone or dust collection pipeline, further maintaining the smooth flow of air. An air valve installed between the storage hopper and the dust-guiding settling zone guides the inflow airflow in the dust collection pipeline. Under normal dust collection conditions, the air valve is open, ensuring a stable flow of dust-laden air into the dust-guiding settling zone without obstructing the normal flow of air in the main dust collection pipeline, thus ensuring the overall ventilation efficiency of the dust collection system remains unaffected.

[0018] The hopper lid and the discharge valve on the lid provide a feasible path for timely cleaning of dust inside the hopper. When dust accumulates to a certain amount inside the hopper, it can be cleaned without interrupting production by using the discharge valve or opening the hopper lid. This prevents excessive dust accumulation from back-blocking the dust guiding and settling zone, ensuring that the dust guiding and settling zone can always function properly and indirectly guaranteeing the stable ventilation performance of the dust collection pipeline. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a pipeline dust removal and sewage discharge device according to an embodiment of this utility model.

[0020] Figure 2 This is a schematic diagram of the connection structure of the storage tank in a pipeline dust removal and sewage discharge device according to an embodiment of this utility model.

[0021] In the diagram, 1. Inflow airflow; 2. Dust removal pipeline; 3. Dust guiding and settling zone; 4. Outflow airflow; 5. Air valve; 6. Storage hopper; 7. Hinge; 8. Elbow clamp; 9. Discharge valve; 10. Hopper cover; 11. Observation window. Detailed Implementation

[0022] In the production process of TFT-LCD substrate glass, the semi-finished product area requires an extremely high level of cleanliness. Strict control of the airborne glass dust content is necessary to prevent dust adhesion from affecting the optical performance and processing precision of the substrate glass. Maintaining a certain level of humidity in the production environment is crucial to suppress dust dispersion. This naturally results in a humid airflow. Since glass dust itself has a certain density, the humid airflow also causes some dust particles to adsorb water vapor, reducing their suspension capacity and accelerating dust particle settling. The settled glass dust gradually accumulates on the inner walls of the dust collection pipes, reducing the effective flow cross-section and increasing ventilation resistance, directly impacting the ventilation performance of the dust collection pipes.

[0023] Currently, dust removal systems for this scenario lack targeted anti-settling and dust removal designs, making it difficult to meet the stability and reliability requirements of the dust removal system in the TFT-LCD liquid crystal substrate glass semi-finished product area. Therefore, there is an urgent need for a pipeline dust removal and sewage discharge device that can overcome the above-mentioned defects.

[0024] Therefore, this utility model proposes a pipeline dust removal and sewage discharge device, which reduces the impact of dust settling on ventilation performance through the synergy of multiple technologies. The dust guiding and settling zone has a larger pipe diameter, which can actively guide the airflow velocity to decrease, so that the dust can be concentrated and settled here, avoiding the accumulation of dust in other parts of the dust removal pipeline and reducing the flow cross-section; the storage tank can collect the settled dust, and with the discharge valve on the tank cover, the dust can be cleaned in time to prevent dust from blocking the pipeline; the air valve can adjust the ventilation cross-section, maintaining sufficient ventilation area during normal dust removal, and closing it during dust removal does not affect the main airflow, ensuring stable ventilation performance.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0029] Reference Figure 1 As shown, this is a specific embodiment of the pipeline dust removal and sewage discharge device provided by the present invention, which includes a dust guiding and settling zone 3 set in the dust removal pipeline 2, wherein the diameter of the dust guiding and settling zone 3 is larger than the diameter of the dust removal pipeline 2. The dust guiding and settling zone 3 is connected to a storage tank 6. An air valve 5 is installed between the storage tank 6 and the dust guiding and settling zone 3 to guide the inflow airflow 1 in the dust removal pipeline 2. The storage hopper 6 is connected to a hopper cover 10, and a discharge valve 9 is installed on the hopper cover 10.

[0030] In this specific embodiment, the various components of the pipeline dust removal and sewage discharge device are functionally connected to form a complete dust removal and sewage discharge system. The dust guiding and settling zone 3 is integrated inside the dust removal pipeline 2. The diameter of the dust guiding and settling zone 3 is larger than that of the dust removal pipeline 2. This structural design reduces the flow velocity of the dust-laden inflow airflow 1 as it passes through the dust guiding and settling zone 3, providing space for concentrated settling of dust particles. This effectively prevents dust particles from dispersing and depositing throughout the entire area of ​​the dust removal pipeline 2, ensuring that the dust removal pipeline 2 always maintains a preset effective flow cross-section and ensuring the efficient transport of dust-laden airflow.

[0031] The dust-guided settling zone 3 and the storage hopper 6 are directly connected. Settled dust particles can fall directly into the storage hopper 6 by gravity, achieving centralized collection and temporary storage of dust particles. The air valve 5 installed between the storage hopper 6 and the dust-guided settling zone 3 has an airflow guiding function: under normal dust removal conditions, the air valve 5 is open, guiding the dust-laden airflow stably into the dust-guided settling zone 3 without interfering with the normal flow of air in the main dust removal pipeline 2, ensuring stable ventilation performance of the dust removal system.

[0032] The top of the storage hopper 6 is equipped with a hopper cover 10. The structure of the hopper cover 10 provides an operating interface for cleaning dust particles inside the storage hopper 6, facilitating subsequent maintenance. The hopper cover 10 is also equipped with a discharge valve 9. During the dust particle cleaning process, the discharge valve 9 can be opened to pre-discharge dust particles or control the discharge rate of dust particles, preventing instantaneous diffusion of dust particles when the hopper cover 10 is opened. In non-cleaning conditions, the cooperation between the hopper cover 10 and the discharge valve 9 ensures the sealing performance of the storage hopper 6, preventing air leakage or external impurities from entering the interior of the storage hopper 6, and does not affect the overall operational stability of the dust removal system.

[0033] The pipeline dust removal and sewage discharge device provided in this specific embodiment, through the coordinated design of the dust guiding settling zone 3, the storage tank 6, the air valve 5, the tank cover 10, and the discharge valve 9, can realize the directional settling and centralized collection of dust particles, effectively reducing the deposition and blockage of dust particles in the dust removal pipeline 2, and ensuring that the dust removal pipeline 2 maintains stable ventilation performance for a long time. At the same time, the device provides a convenient operating structure for dust particle cleaning, which not only reduces the difficulty of maintenance operations, but also realizes dust cleaning without interrupting production, avoiding interference with the operation of the dust removal system during the maintenance process.

[0034] In another specific embodiment of this utility model, the air valve 5 is configured as a double-leaf valve with two or more blades, and all blades can open and close synchronously. This design can precisely adjust the size of the ventilation cross section by synchronously opening and closing the blades. During normal dust removal, the ventilation cross section can be adjusted to the maximum to ensure that the dust-laden airflow passes smoothly through the dust guidance and settling zone 3. When it is necessary to clean the sediment in the storage tank 6, the blades can be closed synchronously to block the airflow into the storage tank 6, without affecting the main airflow of the dust removal pipeline 2, further improving the flexibility and stability of airflow guidance.

[0035] In another specific embodiment of this utility model, the air valve 5 adopts a split-leaf valve design. Its valve body and valve plates are typically made of cast iron or stainless steel, possessing good corrosion resistance and strength, and adaptable to humid and dusty airflow environments. This split-leaf valve has at least two blades, and all blades can open and close synchronously. This synchronous action mechanism is achieved through an external connecting rod or gear structure, ensuring the consistency of blade opening and closing. This design allows for precise adjustment of the ventilation cross-section size through the synchronous opening and closing of the blades. During normal dust removal, the ventilation cross-section can be adjusted to its maximum, ensuring that the dust-laden airflow passes smoothly through the dust-guided settling zone 3. When it is necessary to clean the sediment in the storage tank 6, the blades can be closed synchronously to block the airflow into the storage tank 6, without affecting the main airflow of the dust removal pipeline 2, further improving the flexibility and stability of airflow guidance. Its compact structure and high adjustment precision make it suitable for complex dust removal pipeline 2 operating conditions.

[0036] Reference Figure 2 As shown, the observation window 11 mounted on the storage tank 6 is made of transparent tempered glass. This material not only has good light transmittance, allowing operators to directly observe the accumulation of sediment inside the storage tank 6, but also has high strength, capable of withstanding pressure fluctuations and minor impacts that may occur inside the storage tank 6, ensuring the safe and normal operation of the observation window 11. The observation window 11 is marked with a sediment discharge indicator, providing operators with a clear cleaning baseline. When sediment accumulates to the indicator, operators can promptly initiate the cleaning process to prevent excessive sediment accumulation from clogging the storage tank 6, ensuring the continuous and stable collection capacity of the storage tank 6.

[0037] The storage hopper 6 and the hopper lid 10 are connected by a hinge 7, which is fixed to the hopper lid 10 with a wing nut. The hinge 7 can be quickly removed, facilitating initial positional adjustments to ensure precise alignment between the hopper lid 10 and the storage hopper 6. This connection allows the hopper lid 10 to rotate around the axis of the hinge 7, enabling its opening and closing. This rotary opening and closing structure eliminates the need for complete disassembly of the hopper lid 10, reducing operational difficulty and labor intensity. It allows operators to quickly open the hopper lid 10 for sediment cleaning while also precisely controlling the closed position of the hopper lid 10, ensuring accurate fit with the storage hopper 6 after closure.

[0038] A quick-release structure, specifically an elbow clamp 8, is provided between the storage hopper 6 and the hopper lid 10. This quick-release structure features a fast and convenient operation design and is symmetrically distributed on the side of the storage hopper 6 and hopper lid 10 not connected by the hinge 7. When the hopper lid 10 is closed, the symmetrically distributed elbow clamps 8 can quickly fix the relative position of the hopper lid 10 and the storage hopper 6, preventing the hopper lid 10 from shifting due to airflow impact or vibration during the operation of the dust removal system. When it is necessary to open the hopper lid 10, simply unlocking the elbow clamps 8 allows for quick opening, balancing the reliability of the fixation with the convenience of operation, greatly improving maintenance efficiency.

[0039] The discharge valve 9 uses a 2-inch gate valve, with a close distance between the valve seat and the end flange, resulting in less material retention and a compact structure. The valve core is made of corrosion-resistant materials, such as 316L stainless steel, which effectively resists the erosion of moist deposits and extends the service life of the gate valve. Furthermore, the opening degree of the gate valve can be adjusted according to actual needs to control the discharge rate of deposits, avoiding excessively fast discharge that could cause deposit splashing, or excessively slow discharge that would affect cleaning efficiency. This meets the requirements for deposit discharge and operability, and is suitable for cleaning different amounts of deposits.

[0040] A sealing element is installed between the storage hopper 6 and the hopper cover 10. The sealing element is made of rubber or silicone and is arranged in a circumferential pattern at the edge of the opening of the storage hopper 6. This sealing element fills the gap between the storage hopper 6 and the hopper cover 10 after they are closed, effectively blocking airflow leakage from the connection point, while preventing external impurities from entering the interior of the storage hopper 6. This ensures the sealing performance of the storage hopper 6, avoids affecting the negative pressure environment and dust removal efficiency of the dust removal system due to seal failure, prevents air and water leakage, and maintains stable system operation.

[0041] The inner wall of the dust-guided settling zone 3 is designed with a smooth curved surface, and the connection between the dust-guided settling zone 3 and the dust collection pipe 2 adopts a gradual transition structure. The smooth inner wall can reduce the frictional resistance during airflow and prevent dust from adhering to the wall surface; the gradual transition structure allows the airflow to smoothly enter the dust-guided settling zone 3 from the dust collection pipe 2, effectively reducing the eddies generated when the airflow passes through the connection, preventing the eddies from causing the dust particles to be resuspended, and ensuring that the dust particles can settle stably into the storage tank 6.

[0042] The bottom of the inner cavity of the storage tank 6 is tilted toward the tank cover 10. This tilted structure can use gravity to guide the sediment in the storage tank 6 to gather toward the tank cover 10. When the discharge valve 9 or the tank cover 10 is opened for cleaning, the sediment can be discharged more smoothly, reducing the amount of sediment remaining at the bottom of the storage tank 6, reducing the difficulty of cleaning, and ensuring the effective storage space of the storage tank 6.

[0043] This device guides dust settling in the airflow by increasing the local ventilation cross-section during the airflow process. During dust collection, the air valve 5 is open, and the inner cavity of the storage tank 6 and the dust-guiding and settling zone 3 of the dust removal pipeline 2 together form an airflow area, increasing the ventilation cross-section and guiding dust settling in the incoming airflow 1. During the sediment discharge and cleaning process of the storage tank 6, the air valve 5 is closed, and the airflow in the dust-guiding and settling zone 3 does not flow into the storage tank 6, but directly forms the outflow airflow 4 through the dust removal pipeline 2. This ensures that the dust collector and semi-finished product environmental control operate normally during the dust collection and sediment discharge and cleaning process, enabling uninterrupted implementation throughout the entire process. This greatly improves the reliability and stability of the dust removal system in the application of TFT-LCD liquid crystal substrate glass semi-finished product areas.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipeline dust removal and sewage discharge device, characterized in that, It includes a dust guiding and settling zone (3) set in the dust removal pipeline (2), the diameter of which is larger than that of the dust removal pipeline (2); The dust guiding and settling zone (3) is connected to a storage tank (6), and an air valve (5) is installed between the storage tank (6) and the dust guiding and settling zone (3) to guide the inflow airflow (1) in the dust removal pipeline (2); The storage hopper (6) is connected to a hopper cover (10), and a discharge valve (9) is provided on the hopper cover (10).

2. The pipeline dust removal and sewage discharge device according to claim 1, characterized in that, The air valve (5) is a split-leaf valve with two or more blades. The blades open and close synchronously to adjust the size of the ventilation cross section.

3. The pipeline dust removal and sewage discharge device according to claim 1, characterized in that, The storage tank (6) is provided with an observation window (11), and the observation window (11) is provided with a sediment discharge indicator.

4. The pipeline dust removal and sewage discharge device according to claim 1, characterized in that, The storage hopper (6) and the hopper cover (10) are connected by a hinge (7), so that the hopper cover (10) can rotate around the axis of the hinge (7) to open and close.

5. A pipeline dust removal and sewage discharge device according to claim 4, characterized in that, A quick-release structure is also provided between the storage hopper (6) and the hopper cover (10) to fix the relative position of the hopper cover (10) and the storage hopper (6) when the hopper cover (10) is closed.

6. A pipeline dust removal and sewage discharge device according to claim 5, characterized in that, The quick release structure is an elbow clamp (8), which is symmetrically distributed on the side of the storage bucket (6) and the bucket cover (10) that is not connected by a hinge (7).

7. A pipeline dust removal and sewage discharge device according to claim 1, characterized in that, The discharge valve (9) is a shut-off valve. The valve core of the shut-off valve is made of corrosion-resistant material, and the opening degree of the shut-off valve can be adjusted to control the discharge rate of sediment.

8. A pipeline dust removal and sewage discharge device according to claim 1, characterized in that, A sealing element is provided between the storage hopper (6) and the hopper cover (10), and the sealing element is located at the edge of the opening of the storage hopper (6).

9. A pipeline dust removal and sewage discharge device according to claim 1, characterized in that, The inner wall of the dust guiding and settling zone (3) is a smooth curved surface structure, and the connection between the dust guiding and settling zone (3) and the dust removal pipeline (2) adopts a gradual transition structure to reduce the eddy currents when the airflow passes through.

10. A pipeline dust removal and sewage discharge device according to claim 1, characterized in that, The bottom of the inner cavity of the storage hopper (6) is inclined toward the hopper cover (10).

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