Anti-scale type multi-stage demister

Abstract

The utility model belongs to the technical field of demisters, and discloses an anti-scale multi-stage demister, aiming at solving the problems that the positions of fixing plates of the existing multi-stage demister are fixed, the dislocation length between the fixing plates is difficult to adjust, and in the prior art, the fixing plates are cleaned through the movement of a cleaning plate body, so that the cleaning efficiency is greatly improved. According to the technical scheme, the waste gas treatment device comprises a box body, a gas outlet pipe is fixedly installed at the top of one side of the box body and communicated with the box body, a gas inlet pipe is fixedly installed at the bottom of the other side of the box body and communicated with the box body, and a piston plate is arranged in the box body. When the waste gas purification device is used, the waste gas purification device not only can realize the regulation and control of the flowing path of waste gas, but also can realize the cleaning of the bottom of the fixed plate, and the two functions do not influence each other, so that the waste gas purification device is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of demisters, and particularly relates to an anti-scaling multi-stage demister. Background Art

[0002] After being purified by spray absorption, there are still a large number of droplets and dust residues in the flue gas. The droplets include water mist, sulfuric acid droplets formed by unremoved sulfur trioxide reacting with water, calcium sulfate and calcium sulfite droplets generated by desulfurization reaction, etc. Before the flue gas is discharged from the desulfurization tower, a demister must be used to remove the droplets in the flue gas to prevent the strong acidic droplets and droplets such as calcium sulfite contained in the flue gas from corroding subsequent equipment such as flue ducts and causing scale formation on the equipment surface;

[0003] A demister is used to separate the water mist and water vapor carried in the waste gas. When the gas containing mist flows through the demister at a certain speed, due to the inertial impact of the gas, the mist collides with the corrugated plate and is aggregated. When the generated liquid droplet is large enough that its own gravity exceeds the resultant force of the upward force of the gas and the liquid surface tension, the liquid droplet is separated from the surface of the corrugated plate. The multi-folded structure of the corrugated plate of the demister increases the chance of the mist being captured. The mist that is not removed is captured through the same action at the next turning point. Through such repeated actions, the demisting efficiency is greatly improved. After the gas passes through the corrugated plate demister, it basically contains no mist;

[0004] To solve the above problems, Chinese Patent No. CN220968428U discloses an anti-scaling multi-stage demister with a self-cleaning function. The position of the fixing plate in this prior art is fixed and it is difficult to adjust the misalignment length between the fixing plates. Secondly, in this prior art, the fixing plate is cleaned by the movement of the cleaning plate body, which will affect the flowing space of the waste gas during cleaning and is inconvenient to use. Summary of the Utility Model

[0005] To solve the above deficiencies in the prior art, the purpose of the present utility model is to provide an anti-scaling multi-stage demister. When this anti-scaling multi-stage demister is in use, it can not only realize the adjustment and control of the flowing path of the waste gas, but also realize the cleaning of the bottom of the fixing plate, and the two functions do not affect each other and are convenient to use.

[0006] The technical solution adopted by the present anti-scaling multi-stage demister to solve its technical problems is as follows:

[0007] A scale prevention type multi-stage demister is provided, which includes a box body. An air outlet pipe is fixedly installed at the top of one side of the box body and is interconnected. An air inlet pipe is fixedly installed at the bottom of the other side of the box body and is interconnected. A piston plate is arranged inside the box body, and an adjusting device for adjusting the position of the piston plate is arranged inside the box body. An air vent hole is opened at the bottom of one side of the piston plate. A plurality of fixing plates are respectively fixedly installed on one side of the piston plate and one side of the inner wall of the box body. Moving blocks are respectively arranged below the fixing plates, and cleaning sponges are respectively arranged on the top surfaces of the moving blocks. A moving device for driving the moving blocks to move synchronously is arranged inside the box body.

[0008] Further, the adjusting device is a screw rod, and the screw rod is rotatably installed on the upper part of the box body and penetrates through the piston plate and is in threaded cooperation.

[0009] Further, the moving device is composed of several spline shafts and a first spline tube. The first spline tubes are respectively rotatably installed on one side of the piston plate or one side of the inner wall of the box body. The first spline tubes penetrate through the moving blocks and are in threaded cooperation. The spline shafts penetrate through the piston plate and are in clearance fit. The spline shafts pass through the corresponding first spline tubes and are in clearance fit. The two ends of the spline shafts are rotatably connected to the inner wall of the box body, and a transmission structure is arranged between the spline shafts.

[0010] Further, a second spline tube is rotatably installed in the through hole of the piston plate through which the spline shaft penetrates, and the spline shaft passes through the second spline tube and is in clearance fit.

[0011] Further, the transmission structure is composed of several transmission gears and an intermediate gear. The several transmission gears are respectively fixedly installed on the corresponding spline shafts. The intermediate gear is rotatably installed on the other side of the inner wall of the box body, and the intermediate gears are respectively located between two adjacent transmission gears and are meshed.

[0012] Further, two motors are fixedly installed on the outer wall of the other side of the box body, and the output shafts of the motors penetrate through the box body and are respectively fixedly connected to the corresponding screw rod or one of the spline shafts.

[0013] Further, the motor is a servo motor.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For a scale prevention type multi-stage demister exemplified by the present utility model, the position of the piston plate can be adjusted through the adjusting device, and then the overlapping length between the fixing plates can be adjusted, so that the flowing path of the waste gas can be adjusted. Through the moving device, the moving blocks can be driven to move synchronously, and then the cleaning sponges can be driven to clean the bottom of the fixing plates. Compared with the prior art, when the present utility model is used, it can not only realize the adjustment and control of the flowing path of the waste gas, but also realize the cleaning of the bottom of the fixing plates, and the two functions do not affect each other, and it is convenient to use.

[0016] 2. An anti-scaling multi-stage demister according to an example of the present utility model. Rotating the screw rod can drive the piston plate to rotate. The adjustment device has a simple structure and is convenient to use.

[0017] 3. An anti-scaling multi-stage demister according to an example of the present utility model. Rotating one of the spline shafts can drive other spline shafts to rotate synchronously through a transmission structure. The rotation of the spline shaft can drive the first spline tube to rotate and will not affect the movement of the first spline tube, which is convenient to use.

[0018] 4. An anti-scaling multi-stage demister according to an example of the present utility model. The second spline tube can ensure the sealing between the spline shaft and the through hole.

[0019] 5. An anti-scaling multi-stage demister according to an example of the present utility model. Rotating one of the spline shafts can drive other spline shafts to rotate synchronously through the transmission gear and the intermediate gear. The transmission structure has a simple structure and is convenient to use.

[0020] 6. An anti-scaling multi-stage demister according to an example of the present utility model. By separately turning on the two motors, it can drive the screw rod or the spline shaft to rotate, which can save manual operation and is convenient to use.

[0021] 7. An anti-scaling multi-stage demister according to an example of the present utility model. Compared with other types of motors, the servo motor has more precise control over speed and position and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0023] Figure 1 It is a schematic structural diagram of the present utility model.

[0024] In the figure: 1 box body; 2 air outlet pipe; 3 air inlet pipe; 4 piston plate; 5 fixing plate; 6 movable block; 7 cleaning sponge; 8 screw rod; 9 spline shaft; 10 first spline tube; 11 second spline tube; 12 transmission gear; 13 intermediate gear; 14 motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the present application in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model and do not limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description.

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] As Figure 1 shown, an anti-scaling multi-stage demister includes a box body 1. An air outlet pipe 2 is fixedly installed and communicated at the top of one side of the box body 1, and an air inlet pipe 3 is fixedly installed and communicated at the bottom of the other side of the box body 1. The feature is that a piston plate 4 is arranged in the box body 1, an adjusting device for adjusting the position of the piston plate 4 is arranged in the box body 1, a ventilation hole is opened at the bottom of one side of the piston plate 4, several fixing plates 5 are respectively fixedly installed on one side of the piston plate 4 and one side of the inner wall of the box body 1, the fixing plates 5 on the piston plate 4 and the box body 1 are arranged in a staggered manner, movable blocks 6 are respectively arranged below the fixing plates 5, cleaning sponges 7 are respectively arranged on the top surfaces of the movable blocks 6, and a moving device for driving the movable blocks 6 to move synchronously is arranged in the box body 1. The position of the piston plate 4 can be adjusted through the adjusting device, and then the overlapping length between the fixing plates 5 can be adjusted, so that the flow path of the waste gas can be adjusted. The moving device can drive the movable blocks 6 to move synchronously, and then can drive the cleaning sponges 7 to clean the bottom of the fixing plates 5. Compared with the prior art, when the present utility model is used, it can not only realize the adjustment and control of the flow path of the waste gas, but also realize the cleaning of the bottom of the fixing plates 5, and the two functions do not affect each other, and it is convenient to use.

[0028] As Figure 1 shown, further preferably, the adjusting device is a screw rod 8. The screw rod 8 is rotatably installed on the upper part of the box body 1, and the screw rod 8 penetrates through the piston plate 4 and is in threaded cooperation. Rotating the screw rod 8 can drive the piston plate 4 to rotate. The structure of this adjusting device is simple and convenient to use.

[0029] As Figure 1 shown, further preferably, the moving device is composed of several spline shafts 9 and a first spline tube 10. The first spline tubes 10 are respectively rotatably installed on one side of the piston plate 4 or one side of the inner wall of the box body 1. The first spline tubes 10 penetrate through the movable blocks 6 and are in threaded cooperation. The spline shafts 9 penetrate through the piston plate 4 and are in clearance fit. The spline shafts 9 pass through the corresponding first spline tubes 10 and are in clearance fit. The two ends of the spline shafts 9 are rotatably connected to the inner wall of the box body 1, and a transmission structure is arranged between the spline shafts 9. Rotating one of the spline shafts 9 can drive the other spline shafts 9 to rotate synchronously through the transmission structure. The rotation of the spline shafts 9 can drive the first spline tubes 10 to rotate, and it will not affect the movement of the first spline tubes 10, which is convenient to use.

[0030] As Figure 1As shown, further preferably, a second spline tube 11 is rotatably installed in a through hole of the piston plate 4 through which the spline shaft 9 passes. The spline shaft 9 passes through the second spline tube 11 and has a clearance fit. The second spline tube 11 can ensure the sealing performance between the spline shaft 9 and the through hole.

[0031] As Figure 1 shown, further preferably, the transmission structure is composed of several transmission gears 12 and an intermediate gear 13. The several transmission gears 12 are respectively fixedly installed on the corresponding spline shafts 9. The intermediate gear 13 is rotatably installed on the other side of the inner wall of the box body 1. The intermediate gear 13 is respectively located between two adjacent transmission gears 12 and meshes with them. By rotating one of the spline shafts 9, the other spline shafts 9 can be driven to rotate synchronously through the transmission gears 12 and the intermediate gear 13. This transmission structure has a simple structure and is convenient to use.

[0032] As Figure 1 shown, further preferably, two motors 14 are fixedly installed on the outer wall of the other side of the box body 1. The output shafts of the motors 14 pass through the box body 1 and are respectively fixedly connected to the corresponding screw rods 8 or one of the spline shafts 9. By separately turning on the two motors 14, the screw rods 8 or the spline shafts 9 can be driven to rotate, which can save manual operation and is convenient to use.

[0033] As Figure 1 shown, further preferably, the motor 14 is a servo motor. Compared with other types of motors, the servo motor has more precise control over speed and position and is more convenient to use.

[0034] The above description is only a preferred embodiment of the present application and an explanation of the technical principles applied. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but also should cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

[0035] Except for the technical features described in the specification, the remaining technical features are known to those skilled in the art. To highlight the innovative features of the present utility model, the remaining technical features are not described in detail herein.

Claims

1. An anti-scaling multi-stage demister, comprising a housing (1), an air outlet pipe (2) being fixedly mounted on the top of one side of the housing (1) and communicating with each other, and an air inlet pipe (3) being fixedly mounted on the bottom of the other side of the housing (1) and communicating with each other, wherein: A piston plate (4) is arranged in the box body (1), an adjusting device for adjusting the position of the piston plate (4) is arranged in the box body (1), a vent hole is opened at the bottom of one side of the piston plate (4), a plurality of fixed plates (5) are respectively fixedly mounted on one side of the piston plate (4) and one side of the inner wall of the box body (1), movable blocks (6) are respectively arranged below the fixed plates (5), cleaning sponges (7) are respectively arranged on the top surfaces of the movable blocks (6), and a moving device for driving the movable blocks (6) to move synchronously is arranged in the box body (1).

2. The anti-scaling multi-stage demister according to claim 1, characterized in that: The adjusting device is a screw rod (8), which is rotatably mounted on the upper part of the box body (1), and the screw rod (8) penetrates the piston plate (4) and is threadedly engaged.

3. The anti-scaling multi-stage demister according to claim 2, characterized in that: The moving device is composed of a plurality of spline shafts (9) and a first spline tube (10). The first spline tube (10) is rotatably mounted on one side of the piston plate (4) or one side of the inner wall of the box body (1). The first spline tube (10) penetrates the movable block (6) and is threadedly engaged. The spline shaft (9) penetrates the piston plate (4) and is clearance-engaged. The spline shaft (9) passes through the corresponding first spline tube (10) and is clearance-engaged. Both ends of the spline shaft (9) are rotatably connected to the inner wall of the box body (1). A transmission structure is arranged between the spline shafts (9).

4. The anti-scaling multi-stage demister according to claim 3, characterized in that: The spline shaft (9) passes through the through hole of the piston plate (4) and a second spline tube (11) is rotatably mounted therein. The spline shaft (9) passes through the second spline tube (11) and is clearance-fitted therewith.

5. The anti-scaling multi-stage demister according to claim 3, characterized in that: The transmission structure is composed of a plurality of transmission gears (12) and an intermediate gear (13). The plurality of transmission gears (12) are fixedly mounted on corresponding spline shafts (9), and the intermediate gears (13) are rotatably mounted on the other side of the inner wall of the housing (1). The intermediate gears (13) are respectively located between two adjacent transmission gears (12) and mesh with each other.

6. The anti-scaling multi-stage demister according to claim 3, characterized in that: Two motors (14) are fixedly mounted on the outer wall of the other side of the box body (1), and the output shafts of the motors (14) penetrate the box body (1) and are respectively fixedly connected to the corresponding screw rods (8) or one of the spline shafts (9).

7. The anti-scaling multi-stage demister according to claim 6, characterized in that: The motor (14) is a servo motor.

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