Biomass pyrolysis reaction device

Abstract

This invention discloses a biomass pyrolysis reactor, comprising a feeding pipe, an inner reactor, and an outer reactor. The feeding pipe has a feed funnel at its front end. The feeding pipe, inner reactor, and outer reactor are mounted on the same mounting plate, with the rear end of the feeding pipe attached to the front end of the inner reactor. The rear half of the inner reactor is located inside the outer reactor. This design utilizes a first and second magnetic block to drive the outer and inner rings to rotate simultaneously during the rotation of the spiral conveyor blades. Simultaneously, a moving block repeatedly moves back and forth. Under the transmission of the first and second gears, the inner reactor can rotate repeatedly in both directions, thereby changing the direction of the centrifugal force on the hard, blocky biomass. This prevents the hard, blocky biomass from clogging the discharge port, improving the pyrolysis efficiency of the biomass.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biomass pyrolysis. Specifically, it is a biomass pyrolysis reaction device. BACKGROUND

[0002] Biomass refers to various organisms formed through photosynthesis, including all plants and animals and microorganisms. Biomass refers to various organisms produced by photosynthesis using air, water, land, etc., that is, all living and growing organic matter is collectively referred to as biomass. The characteristics are renewable, low pollution, wide distribution, abundant resources, carbon neutral, and the scope includes plants, animals and microorganisms.

[0003] When biomass is pyrolyzed, it is usually transported into the pyrolysis furnace, stacked into blocks, and heated by the high-temperature heating wire on the inner wall of the furnace to treat the biomass raw materials inside the furnace.

[0004] For example, a biomass raw material pyrolysis furnace in Chinese patent document CN113462414A includes a feeding pipe, a center shaft is installed inside the feeding pipe, and a pyrolysis furnace body is installed at the outlet end of the feeding pipe. In this way, biomass is transported into the pyrolysis furnace body, and the kinetic energy transmitted by the conveyor causes it to rotate. However, during this process, there may be hard block-shaped objects in the biomass, which can block the flow holes. The conveyor only transmits unidirectional rotation, which cannot change the situation of the flow holes being blocked, which can reduce the efficiency of biomass pyrolysis. To solve this problem, a biomass pyrolysis reaction device is proposed. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to provide a biomass pyrolysis reaction device that improves the efficiency of biomass pyrolysis.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a biomass pyrolysis reaction device, comprising a feeding pipe, an inner reaction furnace and an outer reaction furnace, the front end of the feeding pipe is provided with a feeding hopper, the feeding pipe, the inner reaction furnace and the outer reaction furnace are arranged on the same mounting plate, the tail end of the feeding pipe is attached to the front end of the inner reaction furnace, the rear half of the inner reaction furnace is arranged in the outer reaction furnace, the outer side wall of the feeding pipe is provided with two symmetrically arranged push rods, the two push rods are arranged in an up-down manner, the outer side of the feeding pipe is provided with an inner ring and an outer ring, the outer side wall of the inner ring and the inner side wall of the outer ring are both provided with transmission teeth, the inside of the feeding pipe is provided with a spiral conveying blade, the middle position of the spiral conveying blade is fixedly connected with a moving shaft, the outer side of the moving shaft is provided with a moving mechanism, and the moving mechanism is connected between the two push rods.

[0007] The outer side wall of the moving shaft is provided with a plurality of first magnetic blocks, the inner ring and the outer ring are connected to each other, a plurality of second magnetic blocks are fixedly connected to the inner ring, and the magnetic properties of the first magnetic blocks and the second magnetic blocks are different;

[0008] The outer ring and the inner ring are respectively connected with a first pushing mechanism and a second pushing mechanism, the first pushing mechanism is connected with a first moving frame, the second pushing mechanism is connected with a second moving frame, the inner side wall of the outer reaction furnace is provided with a plurality of stirring blades, the stirring blades are located in the inner reaction furnace and are attached to the inner side wall of the inner reaction furnace.

[0009] Preferably, the moving mechanism comprises a moving block slidingly connected to the outer side wall of the moving shaft, a fixed spring is arranged between the moving block and the inner side wall of the feeding pipe, an installation block is slidingly connected to the moving block, an internal thread is formed in the side wall of the installation block, an external thread is formed in the outer side wall of the moving shaft, the internal thread is matched with the external thread, a first moving ring and a second moving ring are respectively arranged on the front and rear sides of the moving block, and a reset spring is arranged between the first moving ring and the second moving ring and the inner side wall of the feeding pipe.

[0010] Preferably, the inner side wall of the feeding pipe and the installation block are both fixedly connected with an adaptive block, the two adaptive blocks located in the feeding pipe are respectively located on the front and rear sides of the installation block, the adaptive blocks are arranged in a right triangle mode, and the inclined surfaces of the two adaptive blocks located on the installation block correspond to the inclined surfaces of the two adaptive blocks located in the feeding pipe.

[0011] Preferably, the first moving ring and the second moving ring are respectively connected with two pushing rods through a transmission rod, and the transmission rod is rotatably connected with the first moving ring, the second moving ring and the pushing rod.

[0012] Preferably, the first pushing mechanism comprises a first driving ring fixedly connected to the installation plate, the first driving ring is located on the outer side of the outer ring, a first driven ring is rotatably connected to the inner side of the first driving ring, a first pushing rod is rotatably connected to the first driving ring, a rotating shaft is arranged on the first driven ring, a first moving port is arranged on the first pushing rod, and the rotating shaft is slidingly connected with the inner side wall of the first moving port.

[0013] Preferably, the second pushing mechanism comprises a second driving ring fixedly connected to the installation plate, the second driving ring is located on the inner side of the inner ring, a second driven ring is rotatably connected to the outer side wall of the second driving ring, a second pushing rod is rotatably connected to the second driving ring, a second moving port is formed in the second pushing rod, a connecting shaft is arranged on the second driven ring, and the connecting shaft is slidingly connected with the inner side wall of the second moving port.

[0014] Preferably, one end of the first push rod and the second push rod is fixedly connected with a push arc plate, the first driven ring and the second driven ring are both provided with a mounting shaft, the outer side walls of the two mounting shafts are both slidably connected between the inner side walls of the first moving frame and the second moving frame, the mounting plate is rotatably connected with a transmission shaft, the transmission shaft is provided with a first gear and a second gear at two ends, and the first gear is arranged between the outer ring and the inner ring.

[0015] Preferably, the outer side wall of the front side of the inner reaction furnace is provided with a rotating gear ring, the rotating gear ring is in meshing connection with the second gear, a plurality of discharge ports are formed in the side wall of the inner reaction furnace, the outer side wall of the inner reaction furnace located in the outer reaction furnace is fixedly connected with a plurality of discharge arc plates, the rear end of the inner reaction furnace is provided with a transmission gear ring, the side wall of the outer reaction furnace is rotatably connected with a third gear and a fourth gear, the third gear is in meshing connection with the transmission gear ring, and the third gear and the fourth gear are in meshing connection with each other.

[0016] Preferably, the plurality of stirring blades are fixedly connected with the same mounting ring, and the mounting ring is fixedly connected between the fourth gear.

[0017] The technical scheme of the present application has the following beneficial technical effects:

[0018] 1. The first magnetic block and the second magnetic block can drive the outer ring and the inner ring to rotate simultaneously during the rotation of the spiral conveying blade, and the moving block moves back and forth repeatedly, so that the inner reaction furnace can rotate in the forward and reverse directions under the transmission of the first gear and the second gear, thereby changing the direction of the centrifugal force of the hard block-shaped biomass, preventing the hard block-shaped material from blocking the discharge port, and improving the pyrolysis efficiency of the biomass.

[0019] 2. The mounting ring and the stirring blade are arranged to make the rotation direction of the stirring blade opposite to that of the inner reaction furnace, thereby increasing the stirring efficiency of the biomass in the inner reaction furnace and accelerating the pyrolysis efficiency of the biomass. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structural diagram of the present application;

[0021] Figure 2 The explosion diagram of the present application;

[0022] Figure 3 The structural diagram of the moving shaft and the moving block in the present application;

[0023] Figure 4 The structural diagram of the inner ring and the outer ring in the present application;

[0024] Figure 5 is an enlarged view of A in Figure 4

[0025] Figure 6 is an enlarged view of B in Figure 4

[0026] Figure 7 is a schematic view of the position of the first moving frame and the second moving frame;

[0027] Figure 8 is an enlarged view of C in Figure 7

[0028] Figure 9 is an enlarged view of D in Figure 7

[0029] Figure 10 is a schematic view of the structure of the discharge port;

[0030] Figure 11 is a schematic view of the structure of the mounting ring and the plurality of stirring blades.

[0031] The reference signs in the drawings are as follows: 1 - mounting plate; 2 - feeding pipe; 3 - inner reaction furnace; 4 - outer reaction furnace; 5 - feeding hopper; 6 - spiral conveying blade; 7 - moving shaft; 8 - moving block; 9 - mounting block; 10 - adapting block; 11 - first moving ring; 12 - second moving ring; 13 - fixed spring; 14 - outer ring; 15 - inner ring; 16 - second driving ring; 17 - second driven ring; 18 - pushing arc plate; 19 - first driving ring; 20 - first driven ring; 21 - transmission tooth; 22 - first gear; 23 - mounting ring; 24 - stirring blade; 25 - discharge arc plate; 26 - rotating tooth ring; 27 - discharge port; 28 - transmission tooth ring; 29 - first moving frame; 30 - second moving frame. DETAILED DESCRIPTION

[0032] The biomass pyrolysis reaction device of the embodiment is with reference to Figures 1-2 ​​​​, including feeding pipe 2, inner reaction furnace 3 and outer reaction furnace 4, the front end of feeding pipe 2 is equipped with inlet hopper 5, feeding pipe 2, inner reaction furnace 3 and outer reaction furnace 4 are arranged on the same mounting plate 1, the tail end of feeding pipe 2 is attached to the front end of inner reaction furnace 3, the rear half of inner reaction furnace 3 is arranged in outer reaction furnace 4, the outer side wall of feeding pipe 2 is equipped with two symmetrical push rods, the two push rods are arranged in an up-down manner, the outer side of feeding pipe 2 is equipped with inner ring 15 and outer ring 14, the outer side wall of inner ring 15 and the inner side wall of outer ring 14 are both provided with transmission teeth 21, the inside of feeding pipe 2 is provided with spiral conveying blade 6, the middle position of spiral conveying blade 6 is fixedly connected with moving shaft 7, spiral conveying blade 6 can transport biomass raw materials, which is the prior art;

[0033] Referring to Figure 3 , the outer side of moving shaft 7 is equipped with a moving mechanism, the moving mechanism is connected between the two push rods, the moving mechanism comprises moving block 8 which is slidingly connected to the outer side wall of moving shaft 7, fixed spring 13 is arranged between moving block 8 and the inner side wall of feeding pipe 2, installation block 9 is slidingly connected to moving block 8, inner threads are formed in the side wall of installation block 9, outer threads are formed in the outer side wall of moving shaft 7, the inner threads are matched with the outer threads, first moving ring 11 and second moving ring 12 are respectively arranged on the front and rear sides of moving block 8, reset springs are arranged between first moving ring 11 and second moving ring 12 and the inner side wall of feeding pipe 2, first moving ring 11 and second moving ring 12 are respectively connected with the two push rods through transmission rods, the two ends of transmission rods are respectively rotatably connected with first moving ring 11, second moving ring 12 and the push rods;

[0034] The inner side wall of feeding pipe 2 and installation block 9 are both fixedly connected with adaptive blocks 10, the two adaptive blocks 10 located in feeding pipe 2 are respectively located on the front and rear sides of installation block 9, adaptive blocks 10 are arranged in a right triangle manner, the inclined surfaces of the two adaptive blocks 10 located on installation block 9 correspond to the inclined surfaces of the two adaptive blocks 10 located in feeding pipe 2;

[0035] The outer side wall of moving shaft 7 is equipped with a plurality of first magnetic blocks, the inner ring 15 and the outer ring 14 are connected with each other, a plurality of second magnetic blocks are fixedly connected to the inner ring 15, the magnetic properties of first magnetic blocks and second magnetic blocks are different, under the action of first magnetic blocks and second magnetic blocks, the outer ring 14 and the inner ring 15 can be synchronously rotated when moving shaft 7 rotates;

[0036] Referring to Figures 4-9, the outer circular ring 14 and the inner circular ring 15 are respectively connected with the first pushing mechanism and the second pushing mechanism, the first pushing mechanism is connected with the first moving frame 29, the second pushing mechanism is connected with the second moving frame 30, the inner side wall of the outer reaction furnace 4 is provided with a plurality of stirring blades 24, the stirring blades 24 are located in the inner reaction furnace 3 and are attached to the inner side wall of the inner reaction furnace 3;

[0037] The first pushing mechanism comprises a first driving circular ring 19 fixedly connected to the mounting plate 1, the first driving circular ring 19 is located on the outer side of the outer circular ring 14, the inner side of the first driving circular ring 19 is rotatably connected with a first driven circular ring 20, the first driving circular ring 19 is rotatably connected with a first pushing rod, the first driven circular ring 20 is provided with a rotating shaft, the first pushing rod is provided with a first moving port, the rotating shaft and the inner side wall of the first moving port are slidably connected, the second pushing mechanism comprises a second driving circular ring 16 fixedly connected to the mounting plate 1, the second driving circular ring 16 is located on the inner side of the inner circular ring 15, the outer side wall of the second driving circular ring 16 is rotatably connected with a second driven circular ring 17, the second driving circular ring 16 is rotatably connected with a second pushing rod, the second pushing rod is provided with a second moving port, the second driven circular ring 17 is provided with a connecting shaft, the connecting shaft and the inner side wall of the second moving port are slidably connected, the first pushing rod and the second pushing rod are fixedly connected with a pushing arc plate 18 close to one end of the transmission gear 21, the first driven circular ring 20 and the second driven circular ring 17 are provided with mounting shafts, the outer side walls of the two mounting shafts are slidably connected with the inner side walls of the first moving frame 29 and the second moving frame 30 respectively, the mounting plate 1 is rotatably connected with a transmission shaft, the transmission shaft is provided with a first gear 22 and a second gear at two ends respectively, the first gear 22 is arranged between the outer circular ring 14 and the inner circular ring 15;

[0038] Referring to Figures 10-11 The outer side wall of the front side of the inner reaction furnace 3 is provided with a rotating gear ring 26, the rotating gear ring 26 is meshingly connected with the second gear, the side wall of the inner reaction furnace 3 is provided with a plurality of discharge ports 27, the outer side wall of the inner reaction furnace 3 located in the outer reaction furnace 4 is fixedly connected with a plurality of discharge arc plates 25, the rear end of the inner reaction furnace 3 is provided with a transmission gear ring 28, the side wall of the outer reaction furnace 4 is rotatably connected with a third gear and a fourth gear, the third gear is meshingly connected with the transmission gear ring 28, the third gear and the fourth gear are meshed with each other, a plurality of stirring blades 24 are fixedly connected with a same mounting circular ring 23, the mounting circular ring 23 is fixedly connected with the fourth gear.

[0039] The operation process is as follows: the biomass to be pyrolyzed is poured into the feeding pipe 2 from the feeding funnel 5, and the biomass is moved to the direction of the inner reaction furnace 3 under the action of the spiral conveying blade 6. When the spiral conveying blade 6 works, the moving shaft 7 rotates, and the inner ring 15 and the outer ring 14 rotate under the action of the first magnetic block and the second magnetic block. The initial position of the mounting block 9 is attached to the moving shaft 7. When the moving shaft 7 rotates, the mounting block 9 moves backward under the action of the inner thread and the outer thread. When the mounting block 9 moves to a certain position, the adapter block 10 on the mounting block 9 will contact the adapter block 10 at the rear side in the feeding pipe 2. Under the action of the two inclined surfaces, the mounting block 9 will move to the outside of the moving block 8, so that the inner thread and the outer thread are separated. At this time, when the moving shaft 7 rotates, it will not continue to move, and it will contact the first moving ring 11 and push it backward. Similarly, after the mounting block 9 and the moving shaft 7 are separated, the second moving ring 12 at the rear side is pushed, and the adapter block 10 at the front side of the feeding pipe 2 resets and moves backward.

[0040] When the first moving ring 11 and the second moving ring 12 move respectively, the two corresponding push rods move up or down. When the two push rods move, the first moving frame 29 and the second moving frame 30 move up or down. When the first moving frame 29 moves, the first driven circular ring 19 rotates, so that the corresponding position of the push arc plate 18 rotates. At this time, the plurality of push arc plates 18 form a circular shape outside the outer ring 14, and the transmission teeth 21 in the outer ring 14 are pushed out. Since the outer ring 14 and the inner ring 15 rotate with the moving shaft 7, the transmission teeth 21 in the outer ring 14 will drive the first gear 22 to rotate forward. Similarly, when the transmission teeth 21 in the inner ring 15 are pushed out, the first gear 22 will rotate in the opposite direction. It should be noted that the transmission teeth 21 in the outer ring 14 and the inner ring 15 are alternately pushed out, and will not be stuck.

[0041] When the transmission teeth 21 repeatedly rotate forward and backward, the inner reaction furnace 3 rotates in the forward and reverse directions. Among them, the forward rotation time is longer than the reverse rotation time, which ensures that the fluid biomass can be discharged to the outside of the outer reaction furnace 4 through the discharge arc plate 25. When the inner reaction furnace 3 rotates, the mounting ring 23 rotates under the action of the transmission teeth ring 28, and the rotating direction of the mounting ring 23 is always opposite to the rotating direction of the inner reaction furnace 3, so as to improve the stirring efficiency of the material in the inner reaction furnace 3 and improve the feasibility of the device.

[0042] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, one of ordinary skill in the art can make other different forms of changes or modifications. Here, it is not necessary or possible to enumerate all the embodiments. The obvious changes or modifications derived from the above should be covered in the protection scope of the present application.

Claims

1. A biomass pyrolysis reaction apparatus comprising a feeding pipe (2), an inner reaction furnace (3) and an outer reaction furnace (4), characterized in that, The outer side wall of the feeding pipe (2) is provided with two symmetrically arranged push rods, the two push rods are arranged in an up-down manner, the outer side of the feeding pipe (2) is provided with an inner ring (15) and an outer ring (14), the outer side wall of the inner ring (15) and the inner side wall of the outer ring (14) are provided with transmission teeth (21), the inside of the feeding pipe (2) is provided with a spiral conveying blade (6), the middle position of the spiral conveying blade (6) is fixedly connected with a moving shaft (7), the outer side of the moving shaft (7) is provided with a moving mechanism, and the moving mechanism is connected with the two push rods; The outer side wall of the moving shaft (7) is provided with a plurality of first magnetic blocks, the inner ring (15) and the outer ring (14) are connected with each other, a plurality of second magnetic blocks are fixedly connected on the inner ring (15), and the magnetic properties of the first magnetic blocks and the second magnetic blocks are different; The outer ring (14) and the inner ring (15) are respectively connected with a first push mechanism and a second push mechanism, the first push mechanism is connected with a first moving frame (29), and the second push mechanism is connected with a second moving frame (30); The moving mechanism comprises a moving block (8) slidably connected to the outer side wall of the moving shaft (7), a fixed spring (13) is arranged between the moving block (8) and the inner side wall of the feeding pipe (2), a mounting block (9) is slidably connected to the moving block (8), an inner thread is formed in the side wall of the mounting block (9), an outer thread is formed in the outer side wall of the moving shaft (7), the inner thread is matched with the outer thread, first and second moving rings (11) and (12) are arranged on the front and rear sides of the moving block (8), and reset springs are arranged between the first and second moving rings (11) and (12) and the inner side wall of the feeding pipe (2); The first push mechanism comprises a first driving ring (19) fixedly connected to the mounting plate (1), the first driving ring (19) is located outside the outer ring (14), a first driven ring (20) is rotatably connected to the inner side of the first driving ring (19), a first push rod is rotatably connected to the first driving ring (19), a rotating shaft is arranged on the first driven ring (20), a first moving port is arranged on the first push rod, and the rotating shaft is slidably connected with the inner side wall of the first moving port; The second push mechanism comprises a second driving ring (16) fixedly connected to the mounting plate (1), the second driving ring (16) is located inside the inner ring (15), a second driven ring (17) is rotatably connected to the outer side wall of the second driving ring (16), a second push rod is rotatably connected to the second driving ring (16), a second moving port is formed in the second push rod, a connecting shaft is arranged on the second driven ring (17), and the connecting shaft is slidably connected with the inner side wall of the second moving port.

2. The biomass pyrolysis reactor of claim 1, wherein, The front end of the feeding pipe (2) is provided with an inlet hopper (5), the feeding pipe (2), the inner reaction furnace (3) and the outer reaction furnace (4) are arranged on the same mounting plate (1), the tail end of the feeding pipe (2) is attached to the front end of the inner reaction furnace (3), and the rear half of the inner reaction furnace (3) is arranged in the outer reaction furnace (4).

3. The biomass pyrolysis reactor of claim 1, wherein, The inner side wall of the outer reaction furnace (4) is provided with a plurality of stirring blades (24), one end of the stirring blade (24) extends into the inner reaction furnace (3) and is attached to the inner side wall of the inner reaction furnace (3).

4. The biomass pyrolysis reactor of claim 1, wherein, The inner side wall of the feeding pipe (2) and the mounting block (9) are both fixedly connected with an adaptive block (10), the two adaptive blocks (10) in the feeding pipe (2) are respectively located on the front and rear sides of the mounting block (9), the adaptive block (10) is arranged in a right triangle mode, and the inclined surfaces of the two adaptive blocks (10) on the mounting block (9) correspond to the inclined surfaces of the two adaptive blocks (10) in the feeding pipe (2).

5. The biomass pyrolysis reactor of claim 4, wherein, The first moving ring (11) and the second moving ring (12) are respectively connected with the two push rods through a transmission rod, and the two ends of the transmission rod are respectively rotatably connected with the first moving ring (11), the second moving ring (12) and the push rod.

6. The biomass pyrolysis reactor of claim 3, wherein, The first push rod and the second push rod are both fixedly connected with a push arc plate (18) at one end close to the transmission gear (21), the first driven ring (20) and the second driven ring (17) are both provided with mounting shafts, the outer side walls of the two mounting shafts are respectively slidably connected with the inner side walls of the first moving frame (29) and the second moving frame (30), the mounting plate (1) is rotatably connected with a transmission shaft, the two ends of the transmission shaft are respectively provided with a first gear (22) and a second gear, and the first gear (22) is arranged between the outer ring (14) and the inner ring (15).

7. The biomass pyrolysis reactor of claim 6, wherein, The outer side wall of the front side of the inner reaction furnace (3) is provided with a rotating gear ring (26), the rotating gear ring (26) is in meshing connection with the second gear, a plurality of discharge ports (27) are formed in the side wall of the inner reaction furnace (3), the outer side wall of the inner reaction furnace (3) in the outer reaction furnace (4) is fixedly connected with a plurality of discharge arc plates (25), the rear end of the inner reaction furnace (3) is provided with a transmission gear ring (28), the side wall of the outer reaction furnace (4) is rotatably connected with a third gear and a fourth gear, the third gear is in meshing connection with the transmission gear ring (28), and the third gear and the fourth gear are in meshing connection with each other.

8. The biomass pyrolysis reactor of claim 7, wherein, A plurality of the stirring blades (24) are fixedly connected with the same mounting ring (23), and the mounting ring (23) is fixedly connected with the fourth gear.

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