Vertical stirrer for anaerobic fermentation

Abstract

The utility model discloses a vertical stirrer for anaerobic fermentation, which comprises a stirring shaft, the stirring shaft is rotatably arranged in an anaerobic tank body, the top of the anaerobic tank body is also provided with a mounting seat, the mounting seat is provided with a gear motor, the gear motor is connected with the stirring shaft, and the stirring shaft is connected with the mounting seat. The bottom of the stirring shaft is provided with a circulating cleaning mechanism used for cleaning bottom fermentation materials, the circulating cleaning mechanism comprises bottom blades, the top blades are arranged on an auxiliary supporting rod, the auxiliary supporting rod is movably arranged at the bottom of the stirring shaft, the stirring shaft is further provided with stirring blades, and the stirring blades are arranged on the stirring shaft. According to the utility model, fermentation raw materials adhered to the inner bottom of the fermentation tank body can be scraped and stirred, meanwhile, the scraping force can be automatically adjusted, the conditions that foreign matters exist at the inner bottom of the fermentation tank body and blades at the bottom are damaged are avoided, meanwhile, the stirring range can be adjusted, and the stirring efficiency of the fermentation raw materials is greatly improved.

Description

Technical Field

[0001] The utility model relates to anaerobic fermentation, in particular to a vertical mixer for anaerobic fermentation. Background Art

[0002] At present, the use of common wastes such as straw, feces and kitchen waste to produce biomass energy has always been the direction of scientific and technological personnel. Anaerobic fermentation is a technology that can turn organic waste into energy and treat it harmlessly. Usually, during the fermentation process, a vertical mixer is used to stir feces or straw.

[0003] During use, the current vertical mixer cannot fit tightly with the bottom of the tank body, cannot scrape the fermentation raw materials adhered to the bottom of the tank body, and cannot stir, which reduces its fermentation efficiency. It cannot adjust the scraping force, which can easily cause damage to the blades. At the same time, its stirring range is limited and cannot be expanded, affecting the stirring efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a vertical mixer for anaerobic fermentation, which solves the problem that the previous vertical mixer cannot fit tightly with the bottom of the tank body during use, cannot scrape the fermentation raw materials adhered to the bottom of the tank body, and cannot stir, which reduces its fermentation efficiency. At the same time, its stirring range is limited and cannot be expanded, which affects the stirring efficiency.

[0005] In order to solve the above technical problems, the utility model provides a vertical mixer for anaerobic fermentation, including a stirring shaft, which is rotatably arranged in an anaerobic tank body, a mounting seat is also arranged on the top of the anaerobic tank body, a reduction motor is arranged on the mounting seat, and the reduction motor is connected to the stirring shaft. A circulation cleaning mechanism for cleaning the bottom fermentation material is arranged at the bottom of the stirring shaft, the circulation cleaning mechanism includes a bottom blade, the top blade is arranged on an auxiliary support rod, the auxiliary support rod is movably arranged at the bottom of the stirring shaft, and a stirring blade is also arranged on the stirring shaft.

[0006] In one embodiment, the auxiliary support rod is movably arranged in a guide groove, and the guide groove is arranged at the bottom of the stirring shaft, which can guide the movement of the auxiliary support rod, thereby improving the stability of the auxiliary support rod when moving.

[0007] In one embodiment, a return spring is further provided in the guide groove, one end of the return spring is connected to the auxiliary support rod, and the elastic force of the return spring enables the auxiliary support rod to fit tightly with the bottom of the fermentation tank body.

[0008] In one embodiment, a groove is provided on the bottom blade, a pulley is rotatably provided in the groove, and the pulley is in contact with the bottom of the fermentation tank body. The bottom blade can rotate along the bottom of the fermentation tank body through the rotation of the pulley.

[0009] In one embodiment, bottom scraping plates are further provided on the bottom blades on both sides of the pulley, and the bottom scraping plates are in contact with the bottom of the fermentation tank body, so as to scrape off the fermentation raw materials adhered to the bottom of the fermentation tank body.

[0010] In one embodiment, a first ear seat is provided on the bottom blade, a first auxiliary stirring rod is rotatably provided in the first ear seat, the first auxiliary stirring rod is rotatably connected to the second auxiliary stirring rod, one end of the second auxiliary stirring rod is rotatably connected to the second ear seat, and the second ear seat is provided on the stirring blade. By providing the first auxiliary stirring rod and the second auxiliary stirring rod, the stirring range can be expanded, thereby improving the stirring efficiency of the fermentation raw materials.

[0011] In one embodiment, one end of the first auxiliary stirring plate is rotatably connected to the first ear seat via a first rotating shaft, the other end of the first auxiliary stirring rod is connected to the second auxiliary stirring rod via a second rotating shaft, and the second auxiliary stirring rod is rotatably connected to the second ear seat via a third rotating shaft, so that the angle between the first auxiliary stirring rod and the second auxiliary stirring rod can be automatically adjusted according to the movement of the auxiliary support rod.

[0012] The beneficial effects of the utility model are:

[0013] The utility model can scrape off the fermentation raw materials adhered to the bottom of the fermentation tank body and stir it, and can automatically adjust the scraping force, thereby avoiding the situation where foreign matter is present at the bottom of the fermentation tank body and damages the bottom blades, and can adjust the stirring range, thereby greatly improving the stirring efficiency of the fermentation raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the circulation cleaning mechanism in the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged structural diagram of the middle A part;

[0017] Figure 4 for Figure 2 A schematic diagram of the partial enlarged structure of the middle B part;

[0018] Figure 5 This is a schematic diagram of a front cross-sectional structure of another embodiment of the utility model;

[0019] In the figure: 1. circulation cleaning mechanism, 2. stirring blade, 3. fermentation tank body, 4. coupling, 5. reduction motor, 6. mounting seat, 7. stirring shaft, 11. auxiliary support rod, 12. bottom blade, 13. return spring, 14. guide groove, 15. groove, 16. pulley, 17. bottom scraper plate, 18. limit slot, 19. limit block, 101. first ear seat, 102. first rotating shaft, 103. first auxiliary stirring rod, 104. second rotating shaft, 105. second auxiliary stirring plate, 106. third rotating shaft, 107. second ear seat. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. All directional indications in the utility model (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] See also Figure 1-Figure 4 A vertical mixer for anaerobic fermentation includes a stirring shaft 7, which is rotatably arranged in an anaerobic tank body. A mounting seat 6 is also arranged on the top of the anaerobic tank body. A reduction motor 5 is arranged on the mounting seat 6. The reduction motor 5 is connected to the stirring shaft 7. Specifically, the stirring shaft 7 is connected to the output shaft of the reduction motor 5 through a coupling 4. A circulation cleaning mechanism 1 for cleaning the bottom fermentation material is arranged at the bottom of the stirring shaft 7. The circulation cleaning mechanism 1 includes a bottom blade 12, and a top blade is arranged on an auxiliary support rod 11. The auxiliary support rod 11 is movably arranged at the bottom of the stirring shaft 7. A stirring blade 2 is also arranged on the stirring shaft 7.

[0022] The auxiliary support rod 11 is movably arranged in the guide groove 14 . The guide groove 14 is arranged at the bottom of the stirring shaft 7 , and can guide the auxiliary support rod 11 to move, thereby improving the stability of the auxiliary support rod 11 when moving.

[0023] A return spring 13 is also provided in the guide groove 14 , and one end of the return spring 13 is connected to the auxiliary support rod 11 . The elastic force of the return spring 13 enables the auxiliary support rod 11 to fit tightly with the bottom of the fermentation tank body 3 .

[0024] A groove 15 is provided on the bottom blade 12 , and a pulley 16 is rotatably provided in the groove 15 . The pulley 16 is in contact with the bottom of the fermentation tank body 3 . The bottom blade 12 can be rotated along the bottom of the fermentation tank body 3 by rotating the pulley 16 .

[0025] Bottom scraping plates 17 are also provided on the bottom blades 12 on both sides of the pulley 16 . The bottom scraping plates 17 are in contact with the bottom of the fermentation tank body 3 , and can scrape off the fermentation raw materials adhered to the bottom of the fermentation tank body 3 .

[0026] Among them, a limit block 19 is arranged on the auxiliary support rod 11, one end of the limit block 19 is clamped in the limit slot 18, and the limit slot 18 is arranged on the inner wall of the guide groove 14. The movement of the auxiliary support rod 11 drives the limit block 19 in the limit slot 18 and guides the movement of the auxiliary support rod 11. At the same time, the rotation of the stirring shaft 7 can drive the auxiliary support rod 11 to rotate through the limit block 19.

[0027] When the bottom fan blade is installed, the auxiliary support rod 11 moves in the guide groove 14 and compresses the return spring 13. Under the action of the elastic force of the return spring 13, the auxiliary support rod 11 moves, and the movement of the auxiliary support rod 11 drives the bottom blade 12 to move, thereby making the bottom blade 12 fit with the bottom of the fermentation tank body 3, and then the reduction motor 5 drives the stirring shaft 7 to rotate, and the stirring shaft 7 drives the auxiliary support rod 11 to rotate, and the auxiliary support rod 11 drives the bottom blade 12 to rotate, and the bottom blade 12 rotates through the pulley 16. At the same time, the bottom blade 12 drives the bottom scraper 17 to rotate, and the bottom scraper 17 scrapes the fermentation raw materials adhered to the bottom of the fermentation tank body 3. At the same time, during the scraping process, the bottom blade 12 encounters foreign matter, and the auxiliary support rod 11 can move in the guide groove 14, thereby avoiding the situation where the bottom blade 12 is damaged by the foreign matter. With the rotation of the bottom blade 12 and the stirring blade 2, the fermentation raw materials can be stirred.

[0028] As a specific embodiment of the present invention, please refer to Figure 5 A first ear seat 101 is arranged on the bottom blade 12, a first auxiliary stirring rod 103 is rotatably arranged in the first ear seat 101, the first auxiliary stirring rod 103 is rotatably connected to the second auxiliary stirring rod 105, one end of the second auxiliary stirring rod 105 is rotatably connected to the second ear seat 107, the second ear seat 107 is arranged on the stirring blade 2, and the first auxiliary stirring rod 103 and the second auxiliary stirring rod 105 are arranged to expand the stirring range, thereby improving the stirring efficiency of the fermentation raw materials.

[0029] One end of the first auxiliary stirring plate is rotatably connected to the first ear seat 101 via the first rotating shaft 102, the other end of the first auxiliary stirring rod 103 is connected to the second auxiliary stirring rod 105 via the second rotating shaft 104, and the second auxiliary stirring rod 105 is rotatably connected to the second ear seat 107 via the third rotating shaft 106, and the angle between the first auxiliary stirring rod 103 and the second auxiliary stirring rod 105 can be automatically adjusted according to the movement of the auxiliary support rod 11.

[0030] When the stirring shaft 7 rotates, the stirring shaft 7 drives the stirring blade 2 and the bottom blade 12 to rotate, and the bottom blade 12 and the stirring blade 2 drive the first auxiliary stirring rod 103 and the second auxiliary stirring rod 105 to rotate, and the first auxiliary stirring rod 103 and the second auxiliary stirring rod 105 stir the fermentation raw materials. At the same time, during the movement of the auxiliary support plate, the first auxiliary stirring rod 103 rotates in the first ear seat 101 through the first rotating shaft 102, and the second auxiliary stirring rod 105 rotates in the second ear seat 107 through the third rotating shaft 106. At the same time, as the second rotating shaft 104 rotates, the angle between the first auxiliary stirring rod 103 and the second auxiliary stirring rod 105 can be automatically adjusted.

[0031] Furthermore, the first rotating shaft 102 and the third rotating shaft 106 are rotatably connected to the first ear seat 101 and the second ear seat 107 through a torsion spring. When the first auxiliary stirring rod 103 and the second auxiliary stirring rod 105 drive the first rotating shaft 102 and the third rotating shaft 106 to rotate, the first rotating shaft 102 and the third rotating shaft 106 drive the torsion spring to rotate, and through the elastic force of the torsion spring, the first auxiliary stirring rod 103 and the second auxiliary stirring rod 105 can maintain an inclined state, thereby improving the stability of the first auxiliary stirring rod 103 and the second stirring rod during rotation.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical mixer for anaerobic fermentation, characterized in that: The invention comprises a stirring shaft (7), wherein the stirring shaft (7) is rotatably arranged in an anaerobic tank body, a mounting seat (6) is also arranged on the top of the anaerobic tank body, a reduction motor (5) is arranged on the mounting seat (6), and the reduction motor (5) is connected to the stirring shaft (7), and a circulation cleaning mechanism (1) for cleaning the bottom fermentation material is arranged at the bottom of the stirring shaft (7), and the circulation cleaning mechanism (1) comprises a bottom blade (12), and the bottom blade is arranged on an auxiliary support rod (11), and the auxiliary support rod (11) is movably arranged at the bottom of the stirring shaft (7), and a stirring blade (2) is also arranged on the stirring shaft (7).

2. The vertical mixer for anaerobic fermentation according to claim 1, characterized in that: The auxiliary support rod (11) is movably arranged in a guide groove (14), and the guide groove (14) is arranged at the bottom of the stirring shaft (7).

3. The vertical mixer for anaerobic fermentation according to claim 2, characterized in that: A return spring (13) is also arranged in the guide groove (14), and one end of the return spring (13) is connected to the auxiliary support rod (11).

4. The vertical mixer for anaerobic fermentation according to claim 1, characterized in that: A groove (15) is arranged on the bottom blade (12), a pulley (16) is rotatably arranged in the groove (15), and the pulley (16) is in contact with the bottom of the fermentation tank body (3).

5. The vertical mixer for anaerobic fermentation according to claim 4, characterized in that: Bottom scraping plates (17) are also provided on the bottom blades (12) on both sides of the pulley (16), and the bottom scraping plates (17) are in contact with the bottom of the fermentation tank body (3).

6. The vertical mixer for anaerobic fermentation according to claim 1, characterized in that: A first ear seat (101) is arranged on the bottom blade (12); a first auxiliary stirring rod (103) is rotatably arranged in the first ear seat (101); the first auxiliary stirring rod (103) is rotatably connected to a second auxiliary stirring rod (105); one end of the second auxiliary stirring rod (105) is rotatably connected to a second ear seat (107); and the second ear seat (107) is arranged on the stirring blade (2).

7. The vertical mixer for anaerobic fermentation according to claim 6, characterized in that: One end of the first auxiliary stirring rod is rotatably connected to the first ear seat (101) via a first rotating shaft (102), the other end of the first auxiliary stirring rod (103) is connected to the second auxiliary stirring rod (105) via a second rotating shaft (104), and the second auxiliary stirring rod (105) is rotatably connected to the second ear seat (107) via a third rotating shaft (106).

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