Energy-saving and consumption-reducing recovery device for n-propyl alcohol waste gas

Abstract

The invention belongs to the technical field of normal propyl alcohol waste gas recovery, and particularly relates to a normal propyl alcohol waste gas energy-saving and consumption-reducing recovery device which comprises a bio-trickling filter, a drainage pipe is installed on the inner wall of the bio-trickling filter through a sealing ring, a first electric control valve is arranged on the outer side of the drainage pipe, and a gas inlet pipe is fixedly connected to the left side of the drainage pipe; a second electric control valve is arranged on the outer side of the air inlet pipe, an air inlet box is fixedly connected to the outer side of the air inlet pipe in a sleeving mode, and a flow guide pipe is fixedly connected to the inner wall of the air inlet box. Through arrangement of structures such as a liquid inlet pipe, a rotating pipe and a spray head, treatment liquid can be sprayed to a filler disc, under the action of structures such as a servo motor and a first gear, the spray head can rotationally spray the treatment liquid, the spraying uniformity is improved, under the action of structures such as an annular groove and a sliding ball, components such as the rotating pipe can be rotationally limited, and the treatment effect is improved. The rotating stability of components such as the rotating pipe is improved.

Description

Technical Field

[0001] This invention relates to the field of n-propanol waste gas recovery technology, and in particular to an energy-saving and consumption-reducing n-propanol waste gas recovery device. Background Technology

[0002] n-Propanol, as an important organic solvent and chemical raw material, is widely used in the pharmaceutical, pesticide, and coating industries. Its production and use generate waste gas containing n-propanol. Recovery technologies mainly include: condensation recovery, catalytic combustion recovery, bio-trickling filter recovery, and adsorption treatment recovery.

[0003] A utility model patent with patent authorization announcement number CN219482208U discloses a biological trickling filter tower, including a tower body, a biological packing assembly, a heat insulation assembly, and a heating assembly. The tower body has a receiving cavity with an air inlet and an air outlet. The biological packing assembly is located in the receiving cavity and between the air inlet and the air outlet. The heat insulation assembly includes a fan, an air inlet pipe, and a heat insulation component. The fan is connected to the air inlet pipe, which is located in the tower body. The heat insulation component is located in the receiving cavity. The air inlet pipe has an air inlet channel, and the heat insulation component has an air outlet. The air outlet is connected to the air inlet channel, and the air outlet path faces the biological packing assembly.

[0004] However, existing energy-saving and consumption-reducing recovery devices for n-propanol waste gas also have certain shortcomings. First, although existing energy-saving and consumption-reducing recovery devices for n-propanol waste gas use a combination of structures such as inlet pipes, filter screens, and activated carbon filter frames to complete the pretreatment of n-propanol waste gas, due to the adhesion characteristics of particulate impurities, long-term use can easily cause clogging of components such as filter screens. Secondly, while existing energy-saving and consumption-reducing recovery devices for n-propanol waste gas mostly use spray heads to spray the treatment liquid, combined with the function of a packing layer, to complete the biodegradation treatment of n-propanol waste gas, the fixed installation position of components such as spray heads easily leads to problems such as uneven spraying of the treatment liquid and poor reaction efficiency. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving and consumption-reducing recovery device for n-propanol waste gas in order to solve the above-mentioned problems, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides an energy-saving and consumption-reducing recovery device for n-propanol waste gas, including a bio-trickling filter tower. A drain pipe is installed on the inner wall of the bio-trickling filter tower through a sealing ring. An electrically controlled valve is installed on the outer side of the drain pipe. An air inlet pipe is fixedly connected to the left side of the drain pipe. An electrically controlled valve is installed on the outer side of the air inlet pipe. An air inlet box is fixedly sleeved on the outer side of the air inlet box. A guide pipe is fixedly connected to the inner wall of the air inlet box. An exhaust pipe is fixedly connected to the tower cover of the bio-trickling filter tower. A pretreatment mechanism is jointly provided on the guide pipe and the air inlet box. A spraying mechanism is jointly provided on the bio-trickling filter tower and the exhaust pipe.

[0007] Preferably, the pretreatment mechanism includes a fixed disk, the inner wall of the guide pipe is fixedly connected to the fixed disk, the inner wall of the fixed disk is fixedly connected to a filter screen, the inner wall of the guide pipe and the right side of the fixed disk are fixedly connected to a fixed plate, the inner wall of the fixed plate is mounted with a rotating rod via a bearing, the rotating rod is rotatably connected to the fixed disk, the outer side of the rotating rod and the fixed plate and the fixed disk are fixedly connected to four driven blades arranged in a circular array, the left end of the rotating rod is fixedly connected to a rotating plate, the right end of the rotating plate is fixedly connected to two evenly distributed guide rods, the right ends of the two guide rods are jointly fixedly connected to a connecting plate, the connecting plate is slidably connected to the rotating rod, the right end of the connecting plate is fixedly connected to bristles, the bristles are in contact with the filter screen, through the setting of the filter screen, particulate impurities can be filtered out of n-propanol waste gas, under the high-speed impact of n-propanol waste gas, the driven blades can drive the rotating rod to rotate, so that the bristles clean the filter screen.

[0008] Preferably, a spring is provided on the outer side of the rotating rod. One end of the spring is fixedly connected to the rotating plate, and the other end of the spring is fixedly connected to the connecting plate. The connecting plate can be tightened by the spring.

[0009] Preferably, four evenly distributed limiting blocks are fixedly connected to the inner wall of the air intake box, and the upper ends of the four limiting blocks are in common contact with the activated carbon filter frame. The activated carbon filter frame is slidably connected to the air intake box, and a handle is fixedly connected to the upper end of the activated carbon filter frame. The inner wall of the air intake box is connected to the limiting pin by a thread, and the limiting pin is movably connected to the activated carbon filter frame. By setting the limiting pin and the limiting blocks, the activated carbon filter frame can be kept stable.

[0010] Preferably, a turntable is fixedly connected to the front of the limiting pin. The turntable is made of hard rubber. The turntable facilitates the rotation of the limiting pin, and the hard rubber material provides a good tactile feel.

[0011] Preferably, the spraying mechanism includes a packing disc, an mounting plate is fixedly connected to the inner wall of the bio-trickling filter, a rotating tube is rotatably connected to the inner wall of the mounting plate, two evenly distributed limiting discs are fixedly sleeved on the outer side of the vertical part of the rotating tube, each limiting disc is rotatably connected to the mounting plate, multiple evenly distributed nozzles are fixedly connected to the horizontal part of the rotating tube, a gear is fixedly sleeved on the outer side of the vertical part of the rotating tube, a servo motor is mounted on the inner wall of the bio-trickling filter through a support member, a gear is fixedly sleeved on the outer side of the output shaft of the servo motor, the gear meshes with the gear one, an inlet pipe is fixedly connected to the inner wall of the bio-trickling filter, the vertical part of the inlet pipe is connected to the vertical part of the rotating tube through a sealed bearing, and an annular groove is opened on the inner wall of the bio-trickling filter. Through the action of the inlet pipe, rotating tube, nozzles and other structures, the treated liquid can be sprayed. Under the action of the servo motor, gear one and other structures, the nozzles can rotate and spray the treated liquid.

[0012] Preferably, a support plate is fixedly connected to the horizontal part of the rotating tube, a movable plate is slidably connected to the inner wall of the support plate, a slider is fixedly connected to the vertical part of the movable plate, the slider is slidably connected to the annular groove, a second spring is fixedly connected to the vertical part of the movable plate, and the other end of the second spring is fixedly connected to the support plate. Through the action of the annular groove, the slider and other structures, the rotating tube and other components can be rotated and guided.

[0013] Preferably, a mounting bracket is fixedly connected to the upper side of the exhaust pipe, and a connecting rod is rotatably connected to the horizontal part of the mounting bracket. The connecting rod is rotatably connected to the exhaust pipe, and the end post of the connecting rod is rotatably connected to the tower cover of the bio-trickling filter. A ball core is fixedly sleeved on the outer side of the connecting rod, and the ball core is rotatably connected to the exhaust pipe. An insertion hole is provided on the end post of the connecting rod. An auxiliary plate is fixedly connected to the upper end of the tower cover of the bio-trickling filter. The auxiliary plate is in contact with the exhaust pipe, and an insertion rod is slidably connected to the inner wall of the auxiliary plate. The insertion rod is slidably connected to the insertion hole, and an elastic rope is fixedly connected to the upper side of the insertion rod. The other end of the elastic rope is fixedly connected to the auxiliary plate. Through the action of the insertion rod, insertion hole, and other structures, the connecting rod can be limited, so that the ball core after the angle is adjusted is in a stable state, thereby adapting and adjusting the exhaust volume.

[0014] Preferably, multiple insertion holes are provided, and the multiple insertion holes are arranged in a circular array on the end post of the connecting rod. The insertion holes facilitate the insertion and use of the connecting rod.

[0015] Compared with related technologies, the energy-saving and consumption-reducing recovery device for n-propanol waste gas provided by the present invention has the following beneficial effects: This invention provides an energy-saving and consumption-reducing recovery device for n-propanol waste gas. Through the arrangement of structures such as filter screen and activated carbon filter frame, particulate impurities in n-propanol waste gas can be pre-treated. Under the action of driven blades, rotating rods and other structures, the brush bristles can be driven to clean the filter screen, avoiding clogging and achieving good energy-saving effect. With the cooperation of structures such as limit pins and handles, the activated carbon filter frame can be disassembled and assembled, making it convenient for operators to replace and use.

[0016] This invention provides an energy-saving and consumption-reducing recovery device for n-propanol waste gas. Through the arrangement of an inlet pipe, a rotating pipe, and a nozzle, a treatment liquid can be sprayed onto a packing disc. Under the action of a servo motor and gears, the nozzle can rotate to spray the treatment liquid, improving the uniformity of the spray. The rotating pipe and other components can be rotated and limited by structures such as an annular groove and a sliding ball, improving their rotational stability. The exhaust pipe and ball core can discharge the gas produced by microbial decomposition. The ball core, after angle adjustment, can be stabilized by structures such as insertion holes and insertion rods, allowing for manual adjustment of the exhaust volume to achieve good energy-saving effects. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the internal structure of the guide tube; Figure 3 For the present invention Figure 1 A schematic diagram of the internal structure of the air intake box; Figure 4 For the present invention Figure 1 A schematic diagram of the internal structure of a biological trickling filter tower; Figure 5 For the present invention Figure 1 A schematic diagram of the internal structure of the exhaust pipe; Figure 6 For the present invention Figure 2 Enlarged view of the fixed disk; Figure 7 For the present invention Figure 3 Enlarged view of the activated carbon filter frame; Figure 8 For the present invention Figure 4 Enlarged view of the stuffing disc; Figure 9 For the present invention Figure 8 Enlarged view of point A; Figure 10 For the present invention Figure 5 A magnified view of the sphere's core.

[0018] In the diagram: 1. Biological trickling filter; 2. Drain pipe; 3. Air inlet pipe; 4. Air inlet box; 5. Guide pipe; 6. Exhaust pipe; 7. Pretreatment mechanism; 8. Spraying mechanism; 70. Fixed plate; 71. Filter screen; 72. Fixed plate; 73. Rotating rod; 74. Driven blade; 75. Rotating plate; 76. Guide rod; 77. Connecting plate; 78. Brush bristles; 79. Spring 1; 790. Limiting block; 791. Activated carbon filter frame; 792. Handle; 793. Limiting pin; 79 4. Turntable; 80. Packing disc; 81. Mounting plate; 82. Rotating tube; 83. Limiting disc; 84. Nozzle; 85. Gear 1; 86. Servo motor; 87. Gear 2; 88. Liquid inlet pipe; 89. Annular groove; 890. Support plate; 891. Moving plate; 892. Sliding ball; 893. Spring 2; 894. Mounting bracket; 895. Connecting rod; 896. Ball core; 897. Insertion hole; 898. Auxiliary plate; 899. Insertion rod; 900. Elastic rope. Detailed Implementation

[0019] like Figure 1-10 As shown, the specific implementation adopts the following technical solution: Example: A propanol waste gas energy-saving and consumption-reducing recovery device includes a bio-trickling filter tower 1. A drain pipe 2 is installed on the inner wall of the bio-trickling filter tower 1 through a sealing ring. An electrically controlled valve 1 is installed on the outer side of the drain pipe 2. An air inlet pipe 3 is fixedly connected to the left side of the drain pipe 2. An electrically controlled valve 2 is installed on the outer side of the air inlet pipe 3. An air inlet box 4 is fixedly sleeved on the outer side of the air inlet pipe 3. A guide pipe 5 is fixedly connected to the inner wall of the air inlet box 4. An exhaust pipe 6 is fixedly connected to the tower cover of the bio-trickling filter tower 1.

[0020] The guide pipe 5 and the air intake box 4 are jointly provided with a pretreatment mechanism 7. The pretreatment mechanism 7 includes a fixed disk 70. The fixed disk 70 is fixedly connected to the inner wall of the guide pipe 5. A filter screen 71 is fixedly connected to the inner wall of the fixed disk 70. A fixed plate 72 is fixedly connected to the inner wall of the guide pipe 5 and to the right of the fixed disk 70. A rotating rod 73 is mounted on the inner wall of the fixed plate 72 through a bearing. The rotating rod 73 is rotatably connected to the fixed disk 70. Four driven blades 74 arranged in a ring array are fixedly connected to the outer side of the rotating rod 73 and between the fixed plate 72 and the fixed disk 70. A rotating plate 75 is fixedly connected to the left end of the rotating rod 73. Two evenly distributed blades are fixedly connected to the right end of the rotating plate 75. The guide rods 76 are connected to a connecting plate 77 at their right ends. The connecting plate 77 is slidably connected to the rotating rod 73. The right end of the connecting plate 77 is fixedly connected to a brush bristle 78, which contacts the filter screen 71. A spring 79 is provided on the outside of the rotating rod 73. One end of the spring 79 is fixedly connected to the rotating plate 75, and the other end is fixedly connected to the connecting plate 77. The spring 79 can be used to tighten the connecting plate 77. The filter screen 71 can be used to filter particulate impurities from the n-propanol waste gas. Under the high-speed impact of the n-propanol waste gas, the driven blade 74 can drive the rotating rod 73 to rotate, so that the brush bristle 78 can clean the filter screen 71.

[0021] The air intake box 4 has four evenly distributed limiting blocks 790 fixedly connected to its inner wall. The upper ends of the four limiting blocks 790 are in contact with an activated carbon filter frame 791. The activated carbon filter frame 791 is slidably connected to the air intake box 4. A handle 792 is fixedly connected to the upper end of the activated carbon filter frame 791. The inner wall of the air intake box 4 is connected to a limiting pin 793 by a thread. The limiting pin 793 is movably connected to the activated carbon filter frame 791. A turntable 794 is fixedly connected to the front of the limiting pin 793. The turntable 794 is made of hard rubber. The turntable 794 facilitates the rotation of the limiting pin 793 and provides a good tactile feel. The limiting pin 793 and the limiting blocks 790 ensure the stability of the activated carbon filter frame 791.

[0022] The bio-trickling filter tower 1 and the exhaust pipe 6 are both equipped with a spray mechanism 8. The spray mechanism 8 includes a packing disc 80. An installation plate 81 is fixedly connected to the inner wall of the bio-trickling filter tower 1. A rotating pipe 82 is rotatably connected to the inner wall of the installation plate 81. Two evenly distributed limiting discs 83 are fixedly sleeved on the outer side of the vertical part of the rotating pipe 82. Each limiting disc 83 is rotatably connected to the installation plate 81. Multiple evenly distributed nozzles 84 are fixedly connected to the horizontal part of the rotating pipe 82. A gear 85 is fixedly sleeved on the outer side of the vertical part of the rotating pipe 82. A servo motor 86 is installed on the inner wall of the bio-trickling filter tower 1 through a support member. A gear 87 is fixedly sleeved on the outer side of the output shaft of the servo motor 86. The gear 87 meshes with the gear 85. An inlet pipe 88 is fixedly connected to the inner wall of the bio-trickling filter tower 1. The vertical part of the inlet pipe 88... The vertical part of the rotating tube 82 is connected to the vertical part of the vertical part of the rotating tube 82 through a sealed bearing. The inner wall of the biological trickling filter tower 1 is provided with an annular groove 89. The horizontal part of the rotating tube 82 is fixedly connected to a support plate 890. The inner wall of the support plate 890 is slidably connected to a moving plate 891. The vertical part of the moving plate 891 is fixedly connected to a sliding ball 892. The sliding ball 892 is slidably connected to the annular groove 89. The vertical part of the moving plate 891 is fixedly connected to a second spring 893. The other end of the second spring 893 is fixedly connected to the support plate 890. Through the action of the annular groove 89, the sliding ball 892 and other structures, the rotating tube 82 and other components can be rotated and guided. Through the action of the inlet pipe 88, the rotating tube 82, the nozzle 84 and other structures, the treatment liquid can be sprayed. Under the action of the servo motor 86, gear 85 and other structures, the nozzle 84 can rotate and spray the treatment liquid.

[0023] The exhaust pipe 6 is fixedly connected to an upper mounting bracket 894. A connecting rod 895 is rotatably connected to the horizontal part of the mounting bracket 894. The connecting rod 895 is rotatably connected to the exhaust pipe 6. The end post of the connecting rod 895 is rotatably connected to the tower cover of the bio-trickling filter tower 1. A ball core 896 is fixedly sleeved on the outer side of the connecting rod 895. The ball core 896 is rotatably connected to the exhaust pipe 6. Multiple insertion holes 897 are provided on the end post of the connecting rod 895, arranged in a circular array on the end post. The insertion holes 897 facilitate the connection of various components. The bio-trickling filter tower 1 is connected to an auxiliary plate 898 at the top of its tower cover. The auxiliary plate 898 contacts the exhaust pipe 6. The inner wall of the auxiliary plate 898 is slidably connected to the insertion rod 899. The insertion rod 899 is slidably connected to the insertion hole 897. An elastic rope 900 is fixedly connected to the upper side of the insertion rod 899. The other end of the elastic rope 900 is fixedly connected to the auxiliary plate 898. Through the action of the insertion rod 899, insertion hole 897 and other structures, the connecting rod 895 can be limited, so that the ball core 896 after the angle is adjusted is in a stable state, thereby adapting and adjusting the exhaust volume.

[0024] The invention is used as follows: In use, the filter screen 71 can filter out particulate impurities from the input n-propanol waste gas. Under the impact of the n-propanol waste gas, the driven blade 74 can rotate, which drives the rotating rod 73 to rotate, which in turn drives the rotating plate 75 to rotate, and the guide rod 76 to rotate, and finally drives the connecting plate 77 to rotate. When the connecting plate 77 rotates, the bristles 78 can slide along the surface of the filter screen 71 to clean the particulate impurities attached to the filter screen 71, thus avoiding the problem of clogging of the filter screen 71. Under the deformation of the spring 79, the connecting plate 77 can be pushed to drive the guide rod 76 to slide along the inner wall of the rotating plate 75, thereby driving the bristles 78 to contact the filter screen 71, so as to ensure the contact and cleaning effect of the bristles 78 and avoid the problem that it is difficult to effectively clean the filter screen 71 after the bristles 78 are worn. The activated carbon filter frame 791 allows for secondary filtration of n-propanol waste gas, ensuring a good pretreatment effect. The turntable 794 can be rotated, causing the limiting pin 793 to rotate as well. With the threaded connection, the limiting pin 793 can disengage from the activated carbon filter frame 791. The handle 792 can pull the activated carbon filter frame 791 upwards, disengaging it from the limiting block 790. Ultimately, the activated carbon filter frame 791 disengages from the air inlet box 4, allowing for removal and replacement. Through the inlet pipe 88, the treatment liquid can be input into the rotating pipe 82. Under the action of the nozzle 84, the treatment liquid can be atomized and sprayed. When the servo motor 86 drives the output shaft to rotate, it can drive the gear 2 87 to rotate. In the meshing relationship, the gear 2 87 can drive the gear 1 85 to rotate, thereby driving the rotating pipe 82 to rotate, and then driving the nozzle 84 to rotate, atomizing and spraying the treatment liquid. In conjunction with the function of the packing disc 80, the n-propanol waste gas can be biodegraded. When the rotating tube 82 rotates, it can drive the support plate 890 to rotate, which in turn drives the moving plate 891 to rotate, and finally drives the slider 892 to slide along the inner wall of the annular groove 89, thereby limiting the rotation of components such as the rotating tube 82 and the nozzle 84 and avoiding the centrifugal shaking of components such as the rotating tube 82 and the nozzle 84. Under the deformation of the second spring 893, the moving plate 891 can be pushed to drive the slider 892 to move, so that the slider 892 is always in contact with the inner wall of the annular groove 89 to ensure a good limiting effect. By pulling the insertion rod 899 to the right, the elastic rope 900 deforms, causing the insertion rod 899 to disengage from the insertion hole 897. This allows the connecting rod 895 to rotate, causing the ball core 896 to rotate. Releasing the insertion rod 899 allows the elastic rope 900 to return to its original shape, pushing the insertion rod 899 to insert into the next insertion hole 897 on the surface of the connecting rod 895. This allows for adaptive adjustment of the angle of the ball core 896, thereby regulating the exhaust volume.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A propanol waste gas energy-saving and consumption-reducing recovery device, comprising a bio-trickling filter (1), characterized in that: The inner wall of the bio-trickling filter tower (1) is fitted with a drain pipe (2) through a sealing ring. An electric control valve is installed on the outer side of the drain pipe (2). An air inlet pipe (3) is fixedly connected to the left side of the drain pipe (2). An electric control valve is installed on the outer side of the air inlet pipe (3). An air inlet box (4) is fixedly sleeved on the outer side of the air inlet pipe (3). A guide pipe (5) is fixedly connected to the inner wall of the air inlet box (4). An exhaust pipe (6) is fixedly connected to the tower cover of the bio-trickling filter tower (1). A pretreatment mechanism (7) is provided on both the guide pipe (5) and the air inlet box (4). A spraying mechanism (8) is provided on both the bio-trickling filter tower (1) and the exhaust pipe (6).

2. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 1, characterized in that: The pretreatment mechanism (7) includes a fixed disk (70), the inner wall of the guide pipe (5) is fixedly connected to the fixed disk (70), the inner wall of the fixed disk (70) is fixedly connected to a filter screen (71), the inner wall of the guide pipe (5) and located on the right side of the fixed disk (70) is fixedly connected to a fixed plate (72), the inner wall of the fixed plate (72) is mounted with a rotating rod (73) through a bearing, the rotating rod (73) is rotatably connected to the fixed disk (70), the outer side of the rotating rod (73) and located on the right side of the fixed plate (72) is fixedly connected to the fixed disk (70), and the fixed plate (71) is fixedly connected to the inner wall of the guide pipe (5). Four driven blades (74) arranged in a circular array are fixedly connected between the fixed plates (70). A rotating plate (75) is fixedly connected to the left end of the rotating rod (73). Two evenly distributed guide rods (76) are fixedly connected to the right end of the rotating plate (75). A connecting plate (77) is fixedly connected to the right end of the two guide rods (76). The connecting plate (77) is slidably connected to the rotating rod (73). A brush bristle (78) is fixedly connected to the right end of the connecting plate (77). The brush bristle (78) is in contact with the filter screen (71).

3. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 2, characterized in that: A spring (79) is provided on the outside of the rotating rod (73). One end of the spring (79) is fixedly connected to the rotating plate (75), and the other end of the spring (79) is fixedly connected to the connecting plate (77).

4. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 1, characterized in that: The inner wall of the air intake box (4) is fixedly connected with four evenly distributed limiting blocks (790). The upper ends of the four limiting blocks (790) are in common contact with the activated carbon filter frame (791). The activated carbon filter frame (791) is slidably connected to the air intake box (4). The upper end of the activated carbon filter frame (791) is fixedly connected with a handle (792). The inner wall of the air intake box (4) is connected with a limiting pin (793) by a thread. The limiting pin (793) is movably connected to the activated carbon filter frame (791).

5. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 4, characterized in that: The front of the limiting pin (793) is fixedly connected to a turntable (794), which is made of hard rubber.

6. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 1, characterized in that: The spraying mechanism (8) includes a packing disc (80). An installation plate (81) is fixedly connected to the inner wall of the bio-trickling filter tower (1). A rotating pipe (82) is rotatably connected to the inner wall of the installation plate (81). Two evenly distributed limiting discs (83) are fixedly sleeved on the outer side of the vertical portion of the rotating pipe (82). Each limiting disc (83) is rotatably connected to the installation plate (81). Multiple evenly distributed nozzles (84) are fixedly connected to the horizontal portion of the rotating pipe (82). The outer side of the vertical portion of the rotating pipe (82)... A gear 1 (85) is fixedly sleeved on the side. A servo motor (86) is installed on the inner wall of the bio-trickling filter tower (1) through a support. A gear 2 (87) is fixedly sleeved on the outer side of the output shaft of the servo motor (86). The gear 2 (87) meshes with the gear 1 (85). An inlet pipe (88) is fixedly connected to the inner wall of the bio-trickling filter tower (1). The vertical part of the inlet pipe (88) is connected to the vertical part of the rotating pipe (82) through a sealed bearing. An annular groove (89) is opened on the inner wall of the bio-trickling filter tower (1).

7. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 6, characterized in that: The horizontal part of the rotating tube (82) is fixedly connected to a support plate (890), the inner wall of the support plate (890) is slidably connected to a moving plate (891), the vertical part of the moving plate (891) is fixedly connected to a slider (892), the slider (892) is slidably connected to an annular groove (89), the vertical part of the moving plate (891) is fixedly connected to a second spring (893), and the other end of the second spring (893) is fixedly connected to the support plate (890).

8. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 1, characterized in that: A mounting bracket (894) is fixedly connected to the upper side of the exhaust pipe (6). A connecting rod (895) is rotatably connected to the horizontal part of the mounting bracket (894). The connecting rod (895) is rotatably connected to the exhaust pipe (6). The end post of the connecting rod (895) is rotatably connected to the tower cover of the bio-trickling filter tower (1). A ball core (896) is fixedly sleeved on the outer side of the connecting rod (895). The ball core (896) is rotatably connected to the exhaust pipe (6). The end of the connecting rod (895) The column has an insertion hole (897). An auxiliary plate (898) is fixedly connected to the upper end of the cover of the bio-trickling filter tower (1). The auxiliary plate (898) is in contact with the exhaust pipe (6). An insertion rod (899) is slidably connected to the inner wall of the auxiliary plate (898). The insertion rod (899) is slidably connected to the insertion hole (897). An elastic rope (900) is fixedly connected to the upper side of the insertion rod (899). The other end of the elastic rope (900) is fixedly connected to the auxiliary plate (898).

9. The energy-saving and consumption-reducing recovery device for n-propanol waste gas according to claim 8, characterized in that: Multiple sockets (897) are provided, and the multiple sockets (897) are arranged in a ring array on the end post of the connecting rod (895).

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