Coking gas conveying device

Abstract

The utility model discloses a coking gas conveying device which specifically comprises a conveying fan, an outlet of the conveying fan is connected with a mounting pipeline through a connecting pipe, and one end, far away from the connecting pipe, of the mounting pipeline is connected with the top of the side surface of a cyclone dust removal cylinder; one side of the installation pipeline is tangent to the inner wall of the cyclone dust removal cylinder, an arc-shaped air inlet is formed in the position, corresponding to the installation pipeline, of the inner wall of the cyclone dust removal cylinder, an air guide plate is arranged in the arc-shaped air inlet, and a supporting shaft is arranged in the end, away from the tangent position of the installation pipeline and the cyclone dust removal cylinder, of the arc-shaped air inlet; and the supporting shaft is connected with one end of the air deflector. When the cyclone dust removal cylinder is used, the speed of air flow is increased when the gap becomes small, and the speed of the air flow is decreased when the gap becomes large, so that the air inlet speed can be adjusted by adjusting the opening and closing of the air guide plate, and the cyclone dust removal cylinder is always kept in an optimal dust removal state.

Description

Technical Field

[0001] This utility model relates to the field of gas conveying technology, specifically to a coking gas conveying device. Background Technology

[0002] Coke oven gas, also known as coke oven gas, is a high-calorific-value gas, also called crude coal gas or raw coal gas, due to its high combustible content. It refers to a combustible gas produced during the production of coke and tar products when several types of bituminous coal are blended to produce coking coal; it is a byproduct of the coking industry. Since the gas flowing out of the coke oven contains certain impurities, these impurities need to be treated. Cyclone dust collectors have a significant application effect in coking gas filtration. Their main principle is to use centrifugal force to separate and collect particulate matter from the gas stream by causing the dust-laden airflow to rotate at high speed. Cyclone dust collectors are suitable for treating non-fibrous and non-sticky dust, and are characterized by low cost, simple structure, and ease of installation and maintenance.

[0003] Cyclone dust collectors require a certain flow rate to achieve optimal dust removal efficiency. Therefore, cyclone dust collectors need to be equipped with wind speed regulation devices, as wind speed significantly impacts the dust removal efficiency and operating costs. Installing a wind speed regulation device ensures the cyclone dust collector operates within the optimal wind speed range, thereby improving its performance and efficiency. However, existing wind speed regulation devices mostly use valves to adjust the flow rate, but this method cannot guarantee that the airflow direction is 100% tangent to the inner wall of the cyclone dust collector. Therefore, we propose a coking gas conveying device. Utility Model Content

[0004] This invention provides a coking gas conveying device, which has the advantage of adjusting the inlet speed by adjusting the opening and closing of the guide vane, so that the cyclone dust collector always maintains the best dust removal state, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a coking gas conveying device, including a conveying fan, the outlet of the conveying fan being connected to an installation pipe via a connecting pipe, and the end of the installation pipe away from the connecting pipe being connected to the top side of a cyclone dust collector.

[0006] The side of the installed duct is tangent to the inner wall of the cyclone dust collector. An arc-shaped air inlet is located on the inner wall of the cyclone dust collector corresponding to the position of the installed duct. An air guide plate is installed inside the arc-shaped air inlet.

[0007] A support shaft is provided at one end of the arc-shaped air inlet away from the position where the installation pipe is tangent to the cyclone dust collector. The upper and lower ends of the support shaft are rotatably connected to the installation pipe, and the support shaft is connected to one end of the air guide plate.

[0008] One end of the support shaft is driven to rotate by a drive device, which causes the air guide plate to seal or open the arc-shaped air inlet.

[0009] Optionally, a clearance fit can be made between the support shaft and the inner wall of the installation pipe.

[0010] Optionally, the drive unit includes a drive arm radially connected to one end of the support shaft, the end of the drive arm away from the support shaft being rotatably connected to one end of the telescopic mechanism, and the other end of the telescopic mechanism being rotatably mounted on a support, which is set on the installation pipe.

[0011] Optionally, an airflow velocity sensor is also included. The airflow velocity sensor is installed on the side of the installation pipe and is located at the position where the installation pipe is tangent to the cyclone dust collector. The airflow velocity sensor is connected to the controller, and the controller is connected to the telescopic mechanism.

[0012] Optionally, baffles are provided at both the upper and lower ends of the arc-shaped air inlet, and the baffles are fitted with the upper and lower ends of the air guide plate with clearance.

[0013] Optionally, the cyclone dust collector is installed inside the frame, with a discharge device below the cyclone dust collector and an ash storage tank below the discharge device.

[0014] Compared with the prior art, in the use of this utility model, the conveying fan will transport coking gas into the cyclone dust collector at a certain pressure. The size of the air gap of the arc-shaped air inlet can be changed by opening and closing the air guide plate. Therefore, when the gap becomes smaller, the airflow speed increases, and when the gap becomes larger, the airflow speed decreases. Thus, the inlet speed can be adjusted by adjusting the opening and closing of the air guide plate, so that the cyclone dust collector always maintains the best dust removal state. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure for installing the pipes according to this utility model. Figure 1 .

[0017] Figure 3 This is a schematic diagram of the structure for installing the pipes according to this utility model. Figure 2 .

[0018] Figure 4 This is a schematic diagram of the heating structure of the installation pipe and cyclone dust collector of this utility model.

[0019] In the diagram: 1. Conveying fan; 2. Connecting pipe; 3. Installation pipe; 4. Telescopic mechanism; 5. Cyclone dust collector; 6. Airflow velocity sensor; 7. Unloader; 8. Ash storage tank; 9. Control cabinet; 10. Air guide plate; 11. Support; 12. Drive arm; 13. Bearing seat; 14. Support shaft; 15. Baffle plate; 16. Arc-shaped air inlet; 17. Frame. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a coking gas conveying device, including a conveying fan 1, the outlet of the conveying fan 1 being connected to an installation pipe 3 via a connecting pipe 2, and the end of the installation pipe 3 furthest from the connecting pipe 2 being connected to the top side of a cyclone dust collector 5. Figure 1 As shown, a discharge device 7 is provided below the cyclone dust collector 5, and a ash storage tank 8 is provided below the discharge device 7. A discharge valve or screw conveyor is installed at the bottom of the ash storage tank 8. The discharge device 7 is an impeller discharge device, which seals the bottom of the cyclone dust collector 5 and can also transport the particulate pollutants at the bottom of the cyclone dust collector 5 to the ash storage tank 8 for storage.

[0022] The cyclone dust collector 5 is installed inside the frame 17. The frame 17 can support the cyclone dust collector 5 at a high position, and the ash storage tank 8 is a certain distance from the ground to facilitate unloading. In addition, the side of the ash storage tank 8 is also connected to the frame 17 to increase the stability of the ash storage tank 8.

[0023] During installation, the side of the installation pipe 3 must be tangent to the inner wall of the cyclone dust collector 5. This allows the airflow from the conveying fan 1 to cut into the inner wall of the cyclone dust collector 5 and rotate around it. An arc-shaped air inlet 16 is provided on the inner wall of the cyclone dust collector 5 corresponding to the location of the installation pipe 3.

[0024] like Figure 2As shown, a support shaft 14 is provided at one end of the arc-shaped air inlet 16 away from the position where it is tangent to the installation pipe 3 and the cyclone dust collector 5. The upper and lower ends of the support shaft 14 are rotatably connected to the installation pipe 3. Specifically, the support shaft 14 is rotatably installed in the bearing seat 13. The bearing seat 13 and the support shaft 14 are connected by a sealing component and a bearing. The support shaft 14 and the inner wall of the installation pipe 3 are fitted with a clearance fit (the fit tolerance can be zero). This can prevent air leakage between the support shaft 14 and the installation pipe 3. An elastic rubber sleeve can be fitted on the support shaft 14 to fill the gap between the support shaft 14 and the installation pipe 3.

[0025] like Figure 2 and Figure 3 As shown, an air guide plate 10 is provided inside the arc-shaped air inlet 16, and one end of the air guide plate 10 is connected to the support shaft 14. One end (top or bottom) of the support shaft 14 is driven to rotate by a driving device. The driving device includes a driving arm 12 radially connected to one end of the support shaft 14. The end of the driving arm 12 away from the support shaft is rotatably connected to one end of the telescopic mechanism 4. The other end of the telescopic mechanism 4 is rotatably mounted on a support 11. The support 11 is set on the installation pipe 3. The telescopic mechanism 4 is one of a cylinder, a hydraulic cylinder, or an electric telescopic rod. In use, under the drive of the driving device, the air guide plate 10 seals or opens the arc-shaped air inlet 16. When the air guide plate 10 is open, as... Figure 2 As shown, a gap is created between the arc-shaped air inlet 16 and the air guide plate 10, and this gap is always tangent to the inner wall of the cyclone dust collector 5, such as... Figure 4 As shown, the airflow exiting from the installation pipe 3 is always tangent to the cyclone dust collector 5 (e.g., Figure 4 (As shown by the middle arrow), the opening and closing of the air guide plate 10 can only change the size of the air outlet gap of the arc-shaped air inlet 16. That is, when the gap becomes smaller, the airflow speed becomes faster, and when the gap becomes larger, the airflow speed becomes slower. Therefore, adjusting the size of the gap between the arc-shaped air inlet 16 and the air guide plate 10 can change the speed of the airflow entering the cyclone dust collector 5.

[0026] It should be noted that during operation, the conveying fan 1 will transport the coking gas into the cyclone dust collector 5 at a certain pressure. The air velocity entering the cyclone dust collector 5 can be adjusted by opening and closing the guide vane 10. Figure 1 As shown, an airflow velocity sensor 6 is installed on the side of the installation pipe 3, and the airflow velocity sensor 6 is located at the position where the installation pipe 3 is tangent to the cyclone dust collector 5. That is, the airflow velocity sensor 6 directly measures the gas velocity flowing out from the end of the guide plate 10. The airflow velocity sensor 6 is connected to the controller, and the controller is connected to the telescopic mechanism 4. The controller is installed in the control cabinet 9, and the control cabinet 9 is installed on the frame 17. Figure 1 As shown;

[0027] The optimal air intake velocity of the cyclone dust collector 5 is approximately 18 to 23 m / s. Different cyclone dust collectors have different air intake velocities. Therefore, in actual use, the air guide plate 10 should be adjusted according to the cyclone dust collector 5 being used to keep the airflow velocity entering the cyclone dust collector 5 at the optimal value. This is achieved by automatically adjusting the verticality based on feedback from the airflow velocity sensor 6. The airflow velocity sensor 6 is an ultrasonic airflow velocity sensor, and the installation pipe 3 is made of a wave-transparent material. Alternatively, an opening can be made at the airflow velocity sensor 6, and the detection end of the airflow velocity sensor 6 can be installed inside the opening.

[0028] Furthermore, such as Figure 2 and Figure 3 As shown, baffles 15 are provided at both the upper and lower ends of the arc-shaped air inlet 16. The baffles 15 are fitted with the upper and lower ends of the air guide plate 10 with a clearance. This way, when the air guide plate 10 opens and closes, it can prevent the airflow from leaking out from the upper and lower ends of the air guide plate 10, and ensure that the airflow always enters along the tangential direction of the inner wall of the cyclone dust collector 5.

[0029] Based on the above embodiments, further optimization can be achieved by installing an ultrasonic level gauge on the top of the ash storage tank 8. The ultrasonic level gauge is connected to the controller and is used to monitor the height of particles in the ash storage tank 8. When the preset height is reached, the controller controls the alarm to sound. The alarm is an audible and visual alarm and is connected to the controller. It is located on the top of the control cabinet 9.

[0030] Based on the above embodiments, further optimization can be achieved by providing a flange at one end of the installation pipe 3 near the cyclone dust collector 5, and fastening the flange to the side wall of the cyclone dust collector 5 with bolts.

[0031] Based on the above embodiments, further optimization can be achieved by connecting a cyclone dust collector to the inlet of the conveying fan 1 via a pipe. This allows the cyclone dust collector to remove particles entering the conveying fan 1, preventing damage to the impeller of the conveying fan 1.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Coke oven gas conveying device comprising a conveying fan (1), the outlet of which is connected to a mounting duct (3) by means of a connecting pipe (2), characterized in that, The end of the installation pipeline (3) away from the connecting pipe (2) is connected with the side top of the cyclone dust removal cylinder (5); The side of the installation pipeline (3) is tangent to the inner wall of the cyclone dust removal cylinder (5), the inner wall of the cyclone dust removal cylinder (5) is provided with an arc-shaped air inlet (16) corresponding to the position of the installation pipeline (3), the arc-shaped air inlet (16) is provided with a wind deflector (10), and The inner wall of the cyclone dust removal cylinder (5) is provided with a support shaft (14) at the end away from the position tangent to the installation pipeline (3), the upper and lower ends of the support shaft (14) are rotatably connected with the installation pipeline (3), and one end of the support shaft (14) is connected with the wind deflector (10); The end of the support shaft (14) is driven to rotate by a driving device, and the wind deflector (10) is driven to seal or open the arc-shaped air inlet (16) under the driving of the driving device.

2. The coke oven gas delivery apparatus according to claim 1, wherein, The support shaft (14) is gap-fitted between the inner wall of the installation pipeline (3).

3. The coke oven gas delivery apparatus according to claim 1, wherein, The driving device includes a driving arm (12) radially connected to one end of the support shaft (14), the end of the driving arm (12) away from the support shaft is rotatably connected with one end of the telescopic mechanism (4), the other end of the telescopic mechanism (4) is rotatably installed on the support (11), and the support (11) is arranged on the installation pipeline (3).

4. The coke oven gas delivery apparatus according to claim 3, wherein Further comprising an airflow speed sensor (6), the airflow speed sensor (6) is arranged on the side of the installation pipeline (3), and the airflow speed sensor (6) is located at the position tangent to the installation pipeline (3) and the cyclone dust removal cylinder (5), the airflow speed sensor (6) is connected with a controller, and the controller is connected with the telescopic mechanism (4).

5. The coke oven gas delivery apparatus according to claim 1, wherein The upper and lower ends of the arc-shaped air inlet (16) are provided with a material blocking plate (15), and the material blocking plate (15) is gap-fitted with the upper and lower ends of the wind deflector (10).

6. The coke oven gas delivery apparatus according to claim 1, wherein The cyclone dust removal cylinder (5) is arranged in the frame body (17), the cyclone dust removal cylinder (5) is provided with a discharger (7) below, and the discharger (7) is provided with a dust storage tank (8) below.

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