Tail gas treater of spray drying system

Abstract

The utility model discloses a spray drying system tail gas treater which comprises a treatment box, a filter screen, a horizontal sliding rod, a plurality of vertical sliding rods, a reciprocating transmission mechanism and a motor, an air inlet and an air outlet are formed in the two sides of the upper end of the treatment box respectively, and the horizontal sliding rod and the vertical sliding rods are arranged in the treatment box. The upper end of the filter screen is connected with the horizontal sliding rod, the lower end of the filter screen is connected with the vertical sliding rod, the lower end of the filter screen inclines towards the gas flowing direction, the motor drives the horizontal sliding rod to slide through the reciprocating transmission mechanism, and a powder discharging opening is formed in the bottom of the treatment box. According to the tail gas treatment device of the spray drying system, powder on the filter screen is separated out, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a tail gas processor for a spray drying system. Background Art

[0002] With the rapid development of industrialization and modernization, spray drying technology has been widely used in industries such as pharmaceuticals, food, and chemicals. Spray drying technology atomizes liquid materials into tiny particles and instantaneously contacts them with hot air to achieve rapid drying of the materials, with advantages such as high efficiency, continuity, and high degree of automation. However, the spray drying system generates tail gas during the drying process, and the tail gas often contains a large amount of dust and harmful substances. If directly discharged into the atmosphere without effective treatment, it will not only cause environmental pollution but also have a serious impact on human health. The existing technology uses a filter screen to intercept the powder in the tail gas, but since the intercepted powder adheres to the filter screen, the production efficiency is reduced. Summary of the Utility Model

[0003] In view of the above-mentioned prior art, the utility model aims to provide a tail gas processor for a spray drying system, which separates the powder on the filter screen to improve the production efficiency.

[0004] To achieve the above object, the technical solution of the embodiment of the utility model is realized as follows:

[0005] A tail gas processor for a spray drying system includes a treatment box, a filter screen, a horizontal sliding rod, a vertical sliding rod, a reciprocating transmission mechanism, and a motor. Intake ports and an outlet are respectively arranged on both sides of the upper end of the treatment box. The horizontal sliding rod and a plurality of vertical sliding rods are arranged inside the treatment box. The upper end of the filter screen is connected to the horizontal sliding rod, and the lower end is connected to the vertical sliding rod. The lower end of the filter screen inclines in the direction of gas flow. The motor drives the horizontal sliding rod to slide through the reciprocating transmission mechanism. A powder discharge port is arranged at the bottom of the treatment box.

[0006] Further, the filter screen includes a screen frame and a screen body. The screen body is connected to the four sides of the screen frame. The upper end of the screen frame is rotatably connected to the horizontal sliding rod, and the lower end of the screen frame is rotatably connected to the vertical sliding rod.

[0007] Further, the filter screen further includes a flexible sealing belt. The flexible sealing belt is in an inverted "U" shape. The inner side of the flexible sealing belt is connected to the upper edge and side edges of the screen frame, and the outer side of the flexible sealing belt is connected to the inner wall of the treatment box.

[0008] Further, the reciprocating transmission mechanism includes a turntable and a connecting rod. The turntable is fixedly connected to the output shaft of the motor. One end of the connecting rod is rotatably connected to the horizontal sliding rod, and the other end is rotatably connected to an eccentric position of the turntable.

[0009] Further, a plurality of protrusions are provided on the side surface of the horizontal sliding rod. The plurality of protrusions are arranged at intervals along the horizontal direction. The processing box is provided with an elastic element that is snap-fitted with the protrusions.

[0010] Further, the connecting rod includes a rod member, a sleeve, and a spring. The rod member is slidably connected to the sleeve. The spring is disposed inside the sleeve, and both ends of the spring are respectively connected to the rod member and the sleeve.

[0011] Further, an inclined partition is provided inside the processing box. The partition is disposed between the lower portions of the two filter meshes.

[0012] The beneficial effects of the present utility model are as follows: Driven by the motor, the horizontal rod reciprocates in the horizontal direction, and at the same time drives the lower end of the filter mesh to move up and down. The upper end of the filter mesh vibrates left and right, and the lower end vibrates up and down, thereby vibrating and moving down the powder on the filter mesh. Since both the air inlet and the air outlet are provided at the upper end of the processing box, the air flow velocity at the upper end inside the processing box is greater than that at the lower end. As the powder moves down, the air flow thrust received by the powder also decreases. Finally, the powder falls from the filter mesh to the bottom of the processing box and is finally discharged from the powder discharge port at the bottom of the processing box. The present utility model separates the powder on the filter mesh and improves production efficiency. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a tail gas processor of a spray drying system in an embodiment of the present application;

[0014] Figure 2 It is a schematic structural diagram of a filter mesh in an embodiment of the present application;

[0015] Figure 3 It is a schematic structural diagram of a reciprocating transmission mechanism in an embodiment of the present application;

[0016] Explanation of the Reference Numerals in the Drawings:

[0017] 1. Processing box; 2. Filter mesh; 3. Horizontal sliding rod; 4. Vertical sliding rod; 5. Reciprocating transmission mechanism; 6. Motor; 7. Air inlet; 8. Air outlet; 9. Powder discharge port; 10. Mesh frame; 11. Mesh body; 12. Flexible sealing strip; 13. Turntable; 14. Connecting rod; 15. Protrusion; 16. Elastic element; 17. Rod member; 18. Sleeve; 19. Spring; 20. Partition. Detailed Embodiments

[0018] The technical solution of the present utility model will be further elaborated in detail below in conjunction with the accompanying drawings of the specification and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. In the following description, the expression "some embodiments" describes a subset of all possible embodiments. However, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "inner", "outer", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0020] Please refer to the attached Figures 1-3 The present application provides a tail gas processor for a spray drying system, which includes a processing box 1, a filter screen 2, a horizontal sliding rod 3, a vertical sliding rod 4, a reciprocating transmission mechanism 5 and a motor 6. The upper ends of both sides of the processing box 1 are respectively provided with an air inlet 7 and an air outlet 8. The tail gas discharged from the spray drying system enters the processing box 1 from the air inlet 7 and is discharged from the air outlet 8 after being processed in the processing box 1. During the process of the tail gas discharging from the air inlet 7 to the air outlet 8, the tail gas passes through several layers of the filter screen 2. The horizontal sliding rod 3 and several vertical sliding rods 4 are arranged in the processing box 1. The upper end of the filter screen 2 is connected to the horizontal sliding rod 3, and the lower end is connected to the vertical sliding rod 4. The lower end of the filter screen 2 is inclined in the direction of gas flow. The motor 6 drives the horizontal sliding rod 3 to slide through the reciprocating transmission mechanism 5. A powder discharge port 9 is provided at the bottom of the processing box 1. Driven by the motor 6, the horizontal rod reciprocates in the horizontal direction, and at the same time drives the lower end of the filter screen 2 to move up and down. The upper end of the filter screen 2 vibrates left and right, and the lower end vibrates up and down, so as to vibrate the powder on the filter screen 2 downward. Since both the air inlet 7 and the air outlet 8 are arranged at the upper end of the processing box 1, the air flow velocity at the upper end in the processing box 1 is greater than that at the lower end. As the powder moves downward, the air flow thrust received by the powder also decreases. Finally, the powder falls from the filter screen 2 to the bottom of the processing box 1 and is finally discharged from the powder discharge port at the bottom of the processing box 1.

[0021] Specifically, the filter screen 2 includes a screen frame 10 and a screen body 11. The screen body 11 is connected to the periphery of the screen frame 10. The upper end of the screen frame 10 is rotatably connected to the horizontal slide bar 3, and the lower end of the screen frame 10 is rotatably connected to the vertical slide bar 4. When the horizontal slide bar 3 and the vertical slide bar 4 move, the screen body 11 is driven by the screen frame 10 to vibrate. The screen frame 10 improves the strength of the filter screen 2 and extends its service life. Preferably, along the direction of the air flow, the aperture of the screen body 11 of the filter screen 2 gradually decreases, which can effectively separate the powder.

[0022] Optionally, the screen frame 10 of the filter screen 2 fits against the side wall of the processor, or an elastic seal is provided on the side of the screen frame 10, or the filter screen 2 further includes a flexible seal strip 12. The flexible seal strip 12 is in an inverted "U" shape. The inner side of the flexible seal strip 12 is connected to the upper edge and the side edge of the screen frame 10, and the outer side of the flexible seal strip 12 is connected to the inner wall of the processing box 1. The flexible seal strip 12 is used to seal the gap between the screen frame 10 and the processing box 1, allowing more gas to pass through the middle of the screen body 11 and improving the filtering effect. In the natural state, the flexible strip is in a relaxed state, leaving room for deformation when the filter screen 2 moves.

[0023] Specifically, the reciprocating transmission mechanism 5 includes a turntable 13 and a connecting rod 14. The turntable 13 is fixedly connected to the output shaft of the motor 6. One end of the connecting rod 14 is rotatably connected to the horizontal slide bar 3, and the other end is rotatably connected to the eccentric position of the turntable 13. When the motor 6 rotates, it drives the turntable 13 to rotate, then drives one end of the connecting rod 14 to make a circular motion, and the other end of the connecting rod 14 drives the horizontal slide bar 3 to move left and right, thereby driving the upper end of the filter screen 2 to move back and forth at a high frequency, promoting the downward movement of the powder.

[0024] Specifically, a number of protrusions 15 are provided on the side of the horizontal slide bar 3. The several protrusions 15 are arranged at intervals along the horizontal direction. The processing box 1 is provided with an elastic element 16 that is engaged with the protrusions 15. When the horizontal slide bar reciprocates, the elastic element 16 continuously contacts the protrusions 15, causing the horizontal slide bar 3 to reciprocate while vibrating, promoting the downward movement of the powder.

[0025] Specifically, the connecting rod 14 includes a rod member 17, a sleeve 18, and a spring 19. The rod member 17 is slidably connected to the sleeve 18. The spring 19 is arranged inside the sleeve 18, and the two ends of the spring 19 are respectively connected to the rod member 17 and the sleeve 18. The connecting rod 14 can elastically expand and contract, improving the vibration of the horizontal slide bar 3.

[0026] Specifically, an inclined partition 20 is provided inside the processing box 1. The partition 20 is arranged between the lower parts of the two filter screens 2. It hinders the downward movement of the air flow and promotes the downward precipitation of the powder below.

[0027] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. A spray drying system tail gas processor, characterized in that: The invention comprises a processing box (1), a filter screen (2), a horizontal slide bar (3), a vertical slide bar (4), a reciprocating transmission mechanism (5) and a motor (6); an air inlet (7) and an air outlet (8) are respectively arranged on both sides of the upper end of the processing box (1); the horizontal slide bar (3) and a plurality of vertical slide bars (4) are arranged in the processing box (1); the upper end of the filter screen (2) is connected to the horizontal slide bar (3), and the lower end is connected to the vertical slide bar (4); the lower end of the filter screen (2) is inclined in the direction of gas flow; the motor (6) drives the horizontal slide bar (3) to slide through the reciprocating transmission mechanism (5); and a powder discharge port (9) is arranged at the bottom of the processing box (1).

2. A spray drying system tail gas processor according to claim 1, characterized in that: The filter screen (2) comprises a screen frame (10) and a screen body (11); the screen body (11) is connected to the four sides of the screen frame (10); the upper end of the screen frame (10) is rotatably connected to the horizontal sliding rod (3); and the lower end of the screen frame (10) is rotatably connected to the vertical sliding rod (4).

3. A spray drying system tail gas processor according to claim 2, characterized in that: The filter screen (2) further comprises a flexible sealing belt (12), the flexible sealing belt (12) being in an inverted "U" shape, the inner side of the flexible sealing belt (12) being connected to the upper edge and the side edge of the screen frame (10), and the outer side of the flexible sealing belt (12) being connected to the inner wall of the processing box (1).

4. The tail gas processor of a spray drying system according to claim 1, characterized in that: The reciprocating transmission mechanism (5) comprises a rotating disk (13) and a connecting rod (14); the rotating disk (13) is fixedly connected to the output shaft of the motor (6); one end of the connecting rod (14) is rotationally connected to the horizontal sliding rod (3), and the other end is rotationally connected to the eccentric position of the rotating disk (13).

5. A spray drying system tail gas processor according to claim 4, characterized in that: The side surface of the horizontal sliding rod (3) is provided with a plurality of protrusions (15), and the plurality of protrusions (15) are arranged at intervals along the horizontal direction. The processing box (1) is provided with an elastic element (16) which is clamped with the protrusions (15).

6. A spray drying system tail gas processor according to claim 5, characterized in that: The connecting rod (14) comprises a rod (17), a sleeve (18) and a spring (19); the rod (17) is slidably connected to the sleeve (18); the spring (19) is arranged in the sleeve (18); and two ends of the spring (19) are respectively connected to the rod (17) and the sleeve (18).

7. The tail gas processor of a spray drying system according to claim 1, characterized in that: An inclined partition (20) is provided in the processing box (1), and the partition (20) is arranged between the lower parts of the two filter screens (2).

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