A swirl guide plate for an ink exhaust gas purification device

Abstract

This utility model relates to the field of guide plate technology, and more particularly to a swirling guide plate for an ink exhaust gas purification device. It includes a main shaft, with a swirling plate spirally extending downwards along its axis connected to the outer periphery of the main shaft. The main shaft is hollow and extends vertically through it, with a coaxial steam pipe rotatably mounted inside. The top of the steam pipe passes through an opening at the top of the main shaft and is connected to an interface. A through-hole is provided on the wall of the steam pipe inside the main shaft. This utility model, by having a coaxial steam pipe inside the main shaft and a spirally arranged swirling plate installed outside the main shaft, provides high-temperature steam during centrifugal separation. Through the centrifugal action of the swirling plate, the high-temperature steam mixes with the ink exhaust gas, accelerating the volatilization of organic matter in the ink exhaust gas, reducing the intermolecular forces of ink, thereby promoting ink precipitation and gas-liquid separation. This significantly improves the separation efficiency of the ink exhaust gas, resulting in a more thorough separation effect and facilitating the separate treatment of volatile waste gas and ink.

Description

Technical Field

[0001] This utility model relates to the field of guide plate technology, and in particular to a swirl guide plate for an ink exhaust gas purification device. Background Technology

[0002] Ink is a material used for printing and spraying, mainly composed of pigments, binders, solvents, and additives. During ink production, mixing, or use, various raw materials such as pigments, solvents, and binders need to be mixed and stirred. At this time, the organic solvents in the ink begin to evaporate, producing a small amount of waste gas. During printing, the ink is transferred to the substrate, and the solvents in the ink gradually evaporate during the printing process to dry the ink. Solvent evaporation is one of the main sources of ink waste gas. Secondly, through atomized spraying, atomized ink that is not adsorbed onto the surface of the object also evaporates into the air, forming waste gas.

[0003] Current methods for treating exhaust gas involve introducing ink exhaust gas into an ink exhaust gas purification device. This device contains a rotatable guide plate that uses centrifugal force to promote gas-liquid separation of the ink exhaust gas, thus treating the ink and exhaust gas separately. However, relying solely on the centrifugal force of the guide plate is insufficient to effectively separate the exhaust gas from the ink, resulting in poor separation. Consequently, when treating volatile organic compounds through combustion, ink particles participate in the combustion reaction, generating harmful substances. Furthermore, after separation from the exhaust gas, the ink particles exhibit strong adhesion, easily adhering to the surface and inner walls of the exhaust gas purification device, making effective centralized collection impossible. This also corrodes the equipment, affecting its lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a swirl guide plate for an ink exhaust gas purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A swirl guide plate for an ink exhaust gas purification device includes a main shaft. A swirl plate extending spirally downward along its axis is connected to the outer periphery of the main shaft. The main shaft is hollow and runs through the top and bottom. A coaxial steam pipe is rotatably installed inside the main shaft. The top end of the steam pipe passes through the top opening of the main shaft and is connected to an interface. A through vent hole is provided on the wall of the steam pipe inside the main shaft.

[0007] Several heat separation components are installed on the outer periphery of the main shaft, and the heat separation components are spirally distributed downward along the axis of the main shaft and located above the swirl plate. The heat separation components pass through the main shaft and communicate with the vent hole.

[0008] The end face of the swirl plate is provided with several turbulent flow sections distributed at equal intervals along its spiral direction. The bottom end of the main shaft is sealed with a first sealing assembly, and the top end of the main shaft is provided with a second sealing assembly between it and the steam pipe.

[0009] Preferably, the bottom of the main shaft is provided with a first connecting ring, and the first sealing assembly includes an end cap sleeved on the outside of the first connecting ring. A first bearing is installed inside the end cap, and one end of the bottom of the steam pipe is installed in the inner ring of the first bearing.

[0010] Preferably, a first sealing ring is provided between the first connecting ring and the end cap.

[0011] Preferably, the heat separation assembly includes a connecting pipe, one end of which passes through the main shaft and communicates with the steam pipe. The connecting pipe is arranged radially along the axis, and a plurality of nozzles communicating with the connecting pipe are installed at the end of the connecting pipe away from the main shaft.

[0012] Preferably, the nozzles of the plurality of nozzles are arranged near the end face of the swirl plate.

[0013] Preferably, the turbulence section includes semi-circular turbulence shields symmetrically arranged on the upper and lower end faces of the swirl plate, and one end of the turbulence shield is recessed inward with a turbulence groove.

[0014] Preferably, a driven gear is also installed on the outside of the top end of the spindle.

[0015] Preferably, the second sealing assembly includes a bushing, the outer ring of which is connected to the inner wall of the opening at the top of the main shaft, a second bearing is installed in the inner ring of the bushing, the top of the steam pipe is installed in the inner ring of the second bearing, and a ring sleeve is used to cover and connect the steam pipe and the bushing.

[0016] Preferably, a second sealing ring is provided between the bushing and the main shaft.

[0017] Preferably, the interface includes a sleeve connected to the inner wall of the top opening of the steam pipe, the top of the sleeve is provided with a second connecting ring that penetrates the sleeve and communicates with the inside of the steam pipe, the outer wall of the second connecting ring is provided with a plurality of snap-fit ​​grooves along its axis, and a third sealing ring is provided between the sleeve and the inner wall of the steam pipe.

[0018] Compared with the prior art, this utility model provides a swirl guide plate for an ink exhaust gas purification device, which has the following beneficial effects:

[0019] This invention features a coaxial steam pipe inside the main shaft and a spirally arranged swirl plate installed outside the main shaft. These provide high-temperature steam during centrifugal separation. The centrifugal action of the swirl plate promotes the mixing of high-temperature steam with ink waste gas, accelerates the volatilization of organic matter in the ink waste gas, reduces the intermolecular forces of ink, and thus promotes ink precipitation and gas-liquid separation. This significantly improves the separation efficiency of ink waste gas, resulting in a more thorough separation effect and facilitating the separate treatment of volatile waste gas and ink.

[0020] This invention introduces high-temperature steam into the end face of the swirl plate through a steam pipe and a heat separation component, reducing the viscosity and adhesion of the ink and making the ink more fluid. This prevents the ink from adhering to the surface of the equipment due to its viscosity under centrifugal force, and causes the precipitated liquid ink to flow spirally downward along the swirl plate and collect at the bottom of the swirl plate for centralized processing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front upper three-dimensional structure of this utility model;

[0022] Figure 2 This is a front view structural diagram of the present utility model;

[0023] Figure 3 This is a partial cross-sectional view of the front upper three-dimensional structure of this utility model;

[0024] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of a portion of the structure at point A;

[0025] Figure 5 This is a partial cross-sectional view of the connection structure between the main shaft and the steam pipe of this utility model;

[0026] Figure 6 This is an exploded view of the structure of the second sealing component of this utility model;

[0027] Figure 7 This is an exploded view of the steam pipe and interface connection structure of this utility model;

[0028] Figure 8 This is a three-dimensional schematic diagram of the interface structure of this utility model;

[0029] Figure 9 This is an exploded view of the connection structure between the main shaft, steam pipe and first sealing assembly of this utility model.

[0030] In the diagram: 1. Steam pipe; 11. Vent hole; 2. Main shaft; 21. First connecting ring; 22. First sealing ring; 3. Heat separation assembly; 31. Connecting pipe; 32. Nozzle; 4. Swirl plate; 5. Turbulence section; 51. Turbulence cover; 52. Turbulence groove; 6. First sealing assembly; 61. End cap; 62. First bearing; 7. Driven gear; 8. Second sealing assembly; 81. Ring sleeve; 82. Shaft sleeve; 83. Second bearing; 84. Second sealing ring; 9. Interface; 91. Second connecting ring; 92. Sleeve; 93. Third sealing ring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0033] Example, refer to Figures 1-9A swirl guide plate for an ink exhaust gas purification device is provided. The swirl guide plate is installed entirely inside the ink exhaust gas purification device, including a main shaft 2. A swirl plate 4 extending spirally downward along its axis is connected to the outer periphery of the main shaft 2. The main shaft 2 is hollow and extends vertically through it. A coaxial steam pipe 1 is rotatably installed inside the main shaft 2, allowing the main shaft 2 to rotate independently relative to the steam pipe 1, thereby driving the swirl plate 4 to rotate. The swirl plate 4 is used to guide the ink exhaust gas to move downward along its spiral path. Utilizing the centrifugal force generated by the rotation, the ink particles in the exhaust gas are promoted to aggregate and form liquid ink, which flows downward along the end face of the swirl plate 4, achieving gas-liquid separation. The top end of the steam pipe 1 passes through the top opening of the main shaft 2 and is connected to an interface 9. The wall of the steam pipe 1 inside the main shaft 2 is provided with a through-hole vent 11. High-temperature steam is introduced into the steam pipe 1 inside the main shaft 2 through the top interface 9. The steam is evenly released into the inner cavity of the main shaft 2 through the vent 11 in the pipe wall. Several heat separation components 3 are installed on the outer periphery of the main shaft 2, and several heat separation components 4 are also provided. The separation component 3 is spirally distributed downward along the axis of the main shaft 2 and located above the swirl plate 4. The thermal separation component 3 passes through the main shaft 2 and is connected to the vent hole 11, continuously introducing high-temperature steam into the steam pipe 1. Under pressure, the high-temperature steam is directionally transported through the thermal separation component 3 to the area above the swirl plate 4, causing the steam to impact the exhaust gas in the form of a high-speed jet, thereby mixing with the exhaust gas to form a flowing hot gas flow field. Since the ink in the exhaust gas contains a large amount of volatile organic compounds, such as benzene and toluene, under the action of high temperature, the organic compounds in the ink exhaust gas volatilize, promoting the precipitation of ink. According to the molecular motion theory, as the temperature rises, the molecular motion intensifies, and the intermolecular forces of ink molecules weaken, making it easier for ink to precipitate from the exhaust gas. Under the action of high temperature, it helps to reduce the viscosity and adhesion of ink, making it more fluid. This causes the liquid ink to spiral downward along the swirl plate 4 and collect at the bottom of the swirl plate 4, which is beneficial for subsequent purification treatment of volatile exhaust gas and ink.

[0034] The end face of the swirl plate 4 is provided with unequally distributed turbulent flow sections 5 along its spiral direction. When the rotating airflow passes through, the turbulent flow section 5 forces the airflow to change direction abruptly, turning laminar flow into turbulent flow, increasing the collision frequency between exhaust gas and high-temperature steam, and significantly enhancing the mixing effect. The bottom end of the main shaft 2 is sealed with a first sealing component 6, and the top end of the main shaft 2 is provided with a second sealing component 8 between it and the steam pipe 1, which is used to improve the sealing of the connection between the main shaft 2 and the steam pipe 1 and prevent the high-temperature steam from escaping.

[0035] Furthermore, the bottom of the main shaft 2 is provided with a first connecting ring 21, and the first sealing assembly 6 includes an end cap 61 sleeved on the outside of the first connecting ring 21. A first bearing 62 is installed inside the end cap 61, and one bottom end of the steam pipe 1 is installed in the inner ring of the first bearing 62. In use, the end cap 61 is sleeved on the first connecting ring 21 at the bottom of the main shaft 2, thereby being integrally connected with the main shaft 2. The end cap 61 supports one bottom end of the steam pipe 1 through the first bearing 62, so that the steam pipe 1 and the main shaft 2 remain coaxial, and the main shaft 2 can rotate freely relative to the steam pipe 1.

[0036] Furthermore, a first sealing ring 22 is provided between the first connecting ring 21 and the end cap 61. The first sealing ring 22 is used to fill the gap between the end cap 61 and the connecting ring, effectively preventing steam leakage.

[0037] Furthermore, the heat separation component 3 includes a connecting pipe 31, one end of which passes through the main shaft 2 and is connected to the steam pipe 1. The connecting pipe 31 is arranged radially along the axis. A number of nozzles 32 connected to the connecting pipe 31 are installed at the end of the connecting pipe 31 away from the main shaft 2, which are used to conduct high-temperature steam to the swirl plate 4, thereby mixing with the ink waste gas.

[0038] Furthermore, several nozzles 32 are positioned close to the end face of the swirl plate 4, causing the steam jet to collide with the waste gas flow and continue to rotate downward under the drive of the swirl plate 4. This promotes the mixing of high-temperature steam and waste gas flow through centrifugal force, thereby promoting gas-liquid separation.

[0039] Furthermore, the turbulence section 5 includes semi-circular turbulence hoods 51 symmetrically arranged on the upper and lower end faces of the swirl plate 4. One end of the turbulence hood 51 is recessed inward and has a turbulence groove 52. The opening end of the turbulence groove 52 is set towards the lower horizontal end of the swirl plate 4. The symmetrically arranged semi-circular turbulence hoods 51 form a double vortex zone on the upper and lower surfaces of the swirl plate 4, disturbing and disrupting the laminar flow between the high-temperature steam and the exhaust gas, promoting the mixing of ink exhaust gas and high-temperature steam, thereby promoting ink precipitation. In addition, the turbulence hoods 51 can also block the liquid graphite and condensate flowing along the swirl plate 4, reducing their flow rate. This can effectively prevent liquid substances from being thrown away from the swirl plate 4 by centrifugal force due to excessive flow, reduce ink splashing, and ensure that they are collected at the bottom of the swirl plate 4 along the spiral direction of the swirl plate 4 for centralized processing.

[0040] Furthermore, a driven gear 7 is also installed on the outside of the top end of the main shaft 2. The driven gear 7 at the top end of the main shaft 2 is connected to an external motor through a chain or belt, thereby driving the swirl plate 4 to rotate, generating centrifugal force, and promoting gas-liquid separation between ink waste gas.

[0041] Furthermore, the second sealing assembly 8 includes a bushing 82, the outer ring of which is connected to the inner wall of the opening at the top of the main shaft 2. A second bearing 83 is installed in the inner ring of the bushing 82, and the top of the steam pipe 1 is installed in the inner ring of the second bearing 83. A ring 81 is used to cover and connect the steam pipe 1 and the bushing 82. In use, the bushing 82 is fixed to the top of the main shaft 2 and the top of the steam pipe 1 is supported by the second bearing 83. The steam pipe 1 is coaxially installed inside the main shaft 2 through the first bearing 62 and the second bearing 83, so that the main shaft 2 can rotate relative to the steam pipe 1.

[0042] Furthermore, a second sealing ring 84 is provided between the bushing 82 and the main shaft 2 to improve the sealing performance of the connection between the main shaft 2 and the steam pipe 1, and to prevent high-pressure steam from escaping from the gap.

[0043] Furthermore, the interface 9 includes a sleeve 92 connected to the inner wall of the top opening of the steam pipe 1. The top of the sleeve 92 is provided with a second connecting ring 91 that penetrates the sleeve 92 and communicates with the interior of the steam pipe 1. The outer wall of the second connecting ring 91 is provided with several snap-fit ​​grooves along its axis. A third sealing ring 93 is provided between the sleeve 92 and the inner wall of the steam pipe 1. The sleeve 92 of the interface 9 and the inner wall of the steam pipe 1 are sealed by the third sealing ring 93 to improve the sealing performance between the interface 9 and the steam pipe 1. The second connecting ring 91 is used to quickly connect to the steam transmission pipeline through the snap-fit ​​grooves and is fixed by clamps or flanges, thereby allowing high-pressure steam to be introduced into the steam pipe 1.

[0044] Working Principle: The swirling guide plate is installed inside the workshop ink exhaust gas purification device. The main shaft 2 is placed vertically, and the swirling plate 4 extends spirally downwards along the outer circumference of the main shaft 2. The main shaft 2 is hollow inside and runs through the entire device. The steam pipe 1 is coaxially and rotatably installed inside the main shaft 2. Its top end passes through the top opening of the main shaft 2 and is fitted with an interface 9 for connecting to a high-pressure steam delivery pipeline. The ink exhaust gas generated in the workshop is introduced from the top of the purification device and enters the swirling guide plate area. An external motor drives the driven gear 7 to rotate, which in turn drives the swirling plate 4 to rotate through the main shaft 2. The swirling plate 4 guides the exhaust gas to move downwards along its spiral path, and then from the external steam... High-temperature steam is introduced into interface 9 through the conveying pipe. The high-temperature steam is directionally conveyed to the top of the swirl plate 4 through the thermal separation component 3. It impacts the exhaust gas in the form of a high-speed jet and mixes with the exhaust gas to form a flowing hot gas field. Under the action of high temperature, it promotes the precipitation of ink, making the separation effect more thorough and facilitating the separate treatment of volatile exhaust gas and ink. At the same time, it reduces the viscosity and adhesion of liquid ink, making it more fluid and preventing it from adhering to the inner wall of the purification device and the end face of the swirl plate 4, which would make it unable to flow and difficult to clean. This helps to make the liquid ink spiral downward along the swirl plate 4 and collect at the bottom of the swirl plate 4 for centralized treatment.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A swirl guide plate for an ink exhaust gas purification device, comprising a main shaft (2), characterized in that, The outer periphery of the main shaft (2) is connected to a spiral plate (4) that extends downward along its axis. The main shaft (2) is hollow inside and runs through the top and bottom. A coaxial steam pipe (1) is rotatably installed inside the main shaft (2). The top end of the steam pipe (1) passes through the top opening of the main shaft (2) and is connected to an interface (9). The wall of the steam pipe (1) inside the main shaft (2) is provided with a through vent hole (11). A plurality of heat separation components (3) are installed on the outer periphery of the main shaft (2), and the plurality of heat separation components (3) are spirally distributed downward along the axis of the main shaft (2) and located above the swirl plate (4). The heat separation components (3) pass through the main shaft (2) and communicate with the vent hole (11). The end face of the swirl plate (4) is provided with several interfering flow parts (5) distributed at equal intervals along its spiral direction. The bottom end of the main shaft (2) is sealed with a first sealing component (6), and the top end of the main shaft (2) is provided with a second sealing component (8) between it and the steam pipe (1).

2. The swirl guide plate of the ink exhaust gas purification device according to claim 1, characterized in that, The main shaft (2) has a first connecting ring (21) at the bottom. The first sealing assembly (6) includes an end cap (61) sleeved on the outside of the first connecting ring (21). A first bearing (62) is installed inside the end cap (61). One end of the bottom of the steam pipe (1) is installed in the inner ring of the first bearing (62).

3. The swirl guide plate of the ink exhaust gas purification device according to claim 2, characterized in that, A first sealing ring (22) is provided between the first connecting ring (21) and the end cap (61).

4. The swirl guide plate of the ink exhaust gas purification device according to claim 1, characterized in that, The heat separation assembly (3) includes a connecting pipe (31), one end of which passes through the main shaft (2) and is connected to the steam pipe (1). The connecting pipe (31) is arranged radially along the axis, and a number of nozzles (32) connected to the connecting pipe (31) are installed at the end of the connecting pipe (31) away from the main shaft (2).

5. The swirl guide plate of the ink exhaust gas purification device according to claim 4, characterized in that, The nozzles (32) of the plurality of nozzles (32) are disposed near the end face of the swirl plate (4).

6. The swirl guide plate of the ink exhaust gas purification device according to claim 1, characterized in that, The turbulence section (5) includes a semi-circular turbulence shield (51) symmetrically arranged on the upper and lower end faces of the swirl plate (4), and one end of the turbulence shield (51) is recessed inward and provided with a turbulence groove (52).

7. The swirl guide plate of the ink exhaust gas purification device according to claim 1, characterized in that, A driven gear (7) is also installed on the outside of the top end of the main shaft (2).

8. The swirl guide plate of the ink exhaust gas purification device according to claim 1, characterized in that, The second sealing assembly (8) includes a bushing (82), the outer ring of which is connected to the inner wall of the top opening of the main shaft (2), a second bearing (83) is installed in the inner ring of the bushing (82), the top of the steam pipe (1) is installed in the inner ring of the second bearing (83), and a ring sleeve (81) is used to cover and connect the steam pipe (1) and the bushing (82).

9. The swirl guide plate of the ink exhaust gas purification device according to claim 8, characterized in that, A second sealing ring (84) is provided between the bushing (82) and the main shaft (2).

10. The swirl guide plate of the ink exhaust gas purification device according to claim 1, characterized in that, The interface (9) includes a sleeve (92) connected to the inner wall of the top opening of the steam pipe (1). The top of the sleeve (92) is provided with a second connecting ring (91) that penetrates the sleeve (92) and communicates with the inside of the steam pipe (1). The outer wall of the second connecting ring (91) is provided with several snap-fit ​​grooves along its axis. A third sealing ring (93) is provided between the sleeve (92) and the inner wall of the steam pipe (1).

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