Organic solid waste anaerobic fermentation device

Abstract

The utility model provides an organic solid waste anaerobic fermentation device which comprises an anaerobic sealing tank supported on the ground through a support frame, a turning assembly and a mincing assembly are arranged in the anaerobic sealing tank, the turning assembly comprises a hollow shaft and a connecting rod, the hollow shaft is rotatably connected to the inner walls of the two sides of the anaerobic sealing tank, and the connecting rod is connected with the connecting rod. The connecting rod is fixedly connected to the circumferential outer wall of the hollow shaft, and the end of the connecting rod is fixedly connected with a scraper through a bolt and is in contact fit with the inner wall of the bottom of the anaerobic sealing tank. The hollow shaft, the connecting rod and the scraping plate are arranged, the scraping plate is in contact with the inner wall of the bottom of the anaerobic sealing tank, and the inner wall of the bottom of the anaerobic sealing tank and the scraping plate are both V-shaped, so that when the hollow shaft drives the connecting rod and the scraping plate to rotate to the bottom of the anaerobic sealing tank, organic solid waste can be turned up to the bottom; by matching with the mincing assembly, the organic solid waste can be more uniformly smashed, so that the mixing effect of anaerobic or facultative anaerobic microorganisms is better.

Description

Technical Field

[0001] The utility model relates to the technical field of organic solid waste treatment, in particular to an organic solid waste anaerobic fermentation device. Background Art

[0002] Anaerobic fermentation of organic solid waste is a technology that uses anaerobic or facultative anaerobic microorganisms to degrade organic solid waste under anaerobic conditions and obtain methane and carbon dioxide. This technology can not only achieve the harmlessness and reduction of garbage, but also obtain bioenergy methane and hydrogen, thereby realizing the resource utilization of solid waste.

[0003] After searching, the Chinese patent publication number CN208083061U discloses an organic solid waste fermentation treatment device, including a tank body, a bayonet, an air inlet, a knife rod, a condensation rod, a post, a sliding column, a knife head, a connecting disk and a turntable. The top of the tank body is provided with a top cover, and two groups of air inlets are symmetrically provided on the top cover, the bottom end of the top cover is provided with a bayonet, and a connecting disk is provided in the center of the bottom end of the bayonet, the bottom end of the connecting disk is provided with a turntable, and the bottom end of the turntable is provided with a main shaft, three groups of knife rods are provided on the outer wall of the main shaft, blades penetrate the outer wall of the knife rod, and two groups of condensation rods are symmetrically provided on the side walls of the turntable, and the bottom ends of the condensation rods are provided with water collecting troughs.

[0004] The above patent has the following shortcomings: the blade and the cutter head are provided to grind the organic solids in the tank body, which can increase the contact area between the organic solids and the external air and increase the fermentation area of ​​the organic solids, but the organic solid waste at the bottom of the tank body cannot be effectively ground, resulting in uneven mixing.

[0005] Therefore, an anaerobic fermentation device for organic solid waste is proposed. Utility Model Content

[0006] In view of this, the embodiment of the utility model hopes to provide an anaerobic fermentation device for organic solid waste to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the embodiment of the utility model is achieved as follows: an anaerobic fermentation device for organic solid waste, including an anaerobic sealed tank supported on the ground by a supporting frame, a turning assembly and a mincing assembly are arranged in the anaerobic sealed tank, the turning assembly includes a hollow shaft and a connecting rod, the hollow shaft is rotatably connected to the inner walls on both sides of the anaerobic sealed tank, the connecting rod is fixedly connected to the circumferential outer wall of the hollow shaft, and the end of the connecting rod is fixedly connected to a scraper by bolts, the scraper is in contact with the inner wall of the bottom of the anaerobic sealed tank, and the inner wall of the bottom of the anaerobic sealed tank and the scraper are both "V"-shaped.

[0008] In some embodiments, the mincing assembly includes a rotating shaft rotatably connected to the inner wall of the anaerobic sealed tank and a plurality of connecting plates fixedly connected to the circumferential outer wall of the rotating shaft. The inner wall of the connecting plate is fixed with a plurality of radially arranged blades by bolts, and the rotating shaft is rotatably matched with the inner wall of the hollow shaft.

[0009] In some embodiments, an inner wall of one side of the anaerobic sealed tank is fixedly connected to and communicated with an exhaust pipe, and the other end of the exhaust pipe is connected to a gas storage tank.

[0010] In some embodiments, a feed hopper is fixedly connected to the inner wall at the top of the anaerobic sealed tank, a sealing cover is movably mounted on the outer wall at the top of the feed hopper, and a handle is fixed to the top of the sealing cover by bolts.

[0011] In some embodiments, the lower surface of the top of the anaerobic sealed tank is fixedly connected and communicated with multiple nozzles, the inner wall of the bottom of the anaerobic sealed tank is fixedly connected and communicated with a discharge pipe, and a discharge valve is installed at the bottom of the discharge pipe.

[0012] In some embodiments, an installation box is fixed to the outer wall of the anaerobic sealed tank by bolts, and a drive assembly is built into the installation box.

[0013] In some embodiments, the driving assembly includes two bevel gears 1, the two bevel gears 1 are fixedly connected to the hollow shaft and the outer wall of the rotating shaft respectively, and the outer walls of the two bevel gears 1 are meshed with the same bevel gear 2.

[0014] In some embodiments, a transmission shaft is fixedly connected to the inner wall of the second bevel gear, and the other end of the transmission shaft passes through the mounting box and is fixedly connected to a motor through a coupling, and the motor is fixed to the top upper surface of the mounting box by bolts.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. An anaerobic fermentation device for organic solid waste, by arranging a hollow shaft, a connecting rod and a scraper, since the scraper is in contact with the inner wall of the bottom of an anaerobic sealed tank, and the inner wall of the bottom of the anaerobic sealed tank and the scraper are both "V"-shaped, when the hollow shaft drives the connecting rod and the scraper to rotate to the bottom of the anaerobic sealed tank, the organic solid waste can be scooped up and turned up, and the organic solid waste can be broken up more evenly with the help of a grinding component, so that the mixing effect of anaerobic or facultative anaerobic microorganisms is better.

[0017] 2. An anaerobic fermentation device for organic solid waste, which provides bevel gear 1 and bevel gear 2, and utilizes the transmission cooperation of bevel gear 1 and bevel gear 2 to enable the hollow shaft and the rotating shaft to rotate in opposite directions, thereby utilizing one driving source to complete multiple motion forms, reducing the layout of the power source and improving the compactness of the structure of the device.

[0018] 3. An anaerobic fermentation device for organic solid waste, which allows the scraper and the blade to rotate in the opposite direction through the reverse rotation of the hollow shaft and the rotating shaft. When the scraper flips up the organic solid waste, the blade grinds the organic solid waste in the opposite direction, thereby increasing the relative movement speed and improving the shearing and grinding effect.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is the main structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the oxygen-free sealed tank of the utility model;

[0023] Figure 3 It is a cross-sectional view of the overall structure of the utility model;

[0024] Figure 4 It is a cross-sectional view of the drive assembly of the utility model.

[0025] Reference numerals:

[0026] 1. Anaerobic sealed tank; 2. Support frame; 3. Hollow shaft; 4. Connecting rod; 5. Scraper; 6. Rotating shaft; 7. Blade; 8. Mounting box; 9. Drive assembly; 10. Exhaust pipe; 11. Feed hopper; 12. Sealing cover; 13. Nozzle; 14. Discharge pipe; 15. Discharge valve; 16. Bevel gear one; 17. Bevel gear two; 18. Transmission shaft; 19. Motor. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0030] Embodiment 1:

[0031] like Figure 1 and Figure 2 As shown, an anaerobic fermentation device for organic solid waste includes an anaerobic sealed tank 1 supported on the ground by a support frame 2.

[0032] The anaerobic sealed tank 1 is provided with a turning assembly and a grinding assembly, the turning assembly includes a hollow shaft 3 and a connecting rod 4, the hollow shaft 3 is rotatably connected to the inner walls on both sides of the anaerobic sealed tank 1, the connecting rod 4 is fixedly connected to the circumferential outer wall of the hollow shaft 3, and the end of the connecting rod 4 is fixedly connected to a scraper 5 by bolts, the scraper 5 is in contact with the inner wall of the bottom of the anaerobic sealed tank 1, and the inner wall of the bottom of the anaerobic sealed tank 1 and the scraper 5 are both "V"-shaped.

[0033] The mincing assembly includes a rotating shaft 6 rotatably connected to the inner wall of the anaerobic sealed tank 1 and a plurality of connecting plates fixedly connected to the circumferential outer wall of the rotating shaft 6. A plurality of radially arranged blades 7 are fixed to the inner wall of the connecting plate by bolts, and the rotating shaft 6 rotatably cooperates with the inner wall of the hollow shaft 3.

[0034] The hollow shaft 3 is used to drive the connecting rod 4 and the scraper 5 to rotate. When the scraper 5 reaches the bottom of the anaerobic sealed tank 1, the scraper 5 contacts and cooperates with the inner wall of the bottom of the anaerobic sealed tank 1, so that the organic solid waste sunk to the bottom can be turned up. The rotating shaft 6 is used to drive the connecting plate and multiple blades 7 to rotate, so that the turned-up organic solid waste can be crushed.

[0035] The device is provided with a hollow shaft 3, a connecting rod 4 and a scraper 5. Since the scraper 5 is in contact with the inner wall of the bottom of the anaerobic sealed tank 1, and the inner wall of the bottom of the anaerobic sealed tank 1 and the scraper 5 are both "V"-shaped, when the hollow shaft 3 drives the connecting rod 4 and the scraper 5 to rotate to the bottom of the anaerobic sealed tank 1, the organic solid waste can be picked up and turned over. In combination with the grinding component, the organic solid waste can be broken up more evenly, so that the mixing effect of anaerobic or facultative anaerobic microorganisms is better.

[0036] like Figure 3 The inner wall of one side of the oxygen-free sealed tank 1 is fixedly connected and communicated with an exhaust pipe 10, and the other end of the exhaust pipe 10 is connected to a gas storage tank.

[0037] The methane gas generated by the fermentation of organic solid waste in the anaerobic sealed tank 1 is introduced into the gas storage tank through the exhaust pipe 10 for unified collection.

[0038] The top inner wall of the anaerobic sealed tank 1 is fixedly connected with a feed hopper 11, and the top outer wall of the feed hopper 11 is movably mounted with a sealing cover 12, and a handle is fixed to the top of the sealing cover 12 by bolts. After the sealing cover 12 is removed from the feed hopper 11, the organic solid waste is poured into the anaerobic sealed tank 1 through the feed hopper 11, and then the sealing cover 12 is installed with the feed hopper 11 again to ensure the sealing inside the anaerobic sealed tank 1.

[0039] The lower surface of the top of the anaerobic sealed tank 1 is fixedly connected and communicated with a plurality of nozzles 13 , and the inner wall of the bottom of the anaerobic sealed tank 1 is fixedly connected and communicated with a discharge pipe 14 , and a discharge valve 15 is installed at the bottom of the discharge pipe 14 .

[0040] When the organic solid waste is subjected to bottom-picking, turning, and mincing in the anaerobic sealed tank 1, the nozzle 13 sprays anaerobic or facultative anaerobic microorganisms onto the surface of the organic solid waste, and then the anaerobic or facultative anaerobic microorganisms are distributed more evenly with the stirring of the scraper 5. The fermented organic solid waste is discharged from the anaerobic sealed tank 1 through the discharge pipe 14.

[0041] Embodiment 2:

[0042] An anaerobic fermentation device for organic solid waste, this embodiment makes the following improvements on the basis of embodiment 1, such as Figure 3 and Figure 4 As shown:

[0043] The outer wall of the anaerobic sealed tank 1 is fixed with an installation box 8 by bolts, and the installation box 8 has a built-in drive assembly 9. The drive assembly 9 includes two bevel gears 16, and the two bevel gears 16 are respectively fixedly connected to the outer wall of the hollow shaft 3 and the rotating shaft 6, and the outer walls of the two bevel gears 16 are meshed with the same bevel gear 2 17.

[0044] The inner wall of the bevel gear 2 17 is fixedly connected with a transmission shaft 18, the other end of the transmission shaft 18 passes through the installation box 8 and is fixedly connected with a motor 19 through a coupling, and the motor 19 is fixed to the top upper surface of the installation box 8 by bolts.

[0045] In this embodiment: the starting motor 19 drives the transmission shaft 18 to drive the bevel gear 2 17 to rotate, and the transmission cooperation between the bevel gear 2 17 and the two bevel gears 1 16 enables the hollow shaft 3 and the rotating shaft 6 to rotate in the opposite direction, so that the turning component and the mincing component can work in the opposite direction.

[0046] The device is provided with bevel gear 16 and bevel gear 2 17, and the transmission cooperation of bevel gear 16 and bevel gear 2 17 is utilized to enable the hollow shaft 3 and the rotating shaft 6 to rotate in the opposite direction, so that the scraper 5 and the blade 7 can rotate in the opposite direction. When the scraper 5 turns up the organic solid waste, the blade 7 shreds the organic solid waste in the opposite direction, thereby increasing the relative movement speed and improving the shearing and shredding effect.

[0047] Working principle: When the device is in use, first remove the sealing cover 12 from the feed hopper 11, then pour the organic solid waste from the feed hopper 11 into the anaerobic sealed tank 1, then start the motor 19 to drive the transmission shaft 18 to drive the bevel gear 2 17 to rotate, and the hollow shaft 3 and the rotating shaft 6 rotate in the opposite direction under the transmission cooperation of the bevel gear 2 17 and the chain bevel gear 1 16, so that the scraper 5 and the blade 7 can rotate in the opposite direction, and the scraper 5 can be used to turn over the organic solid waste at the bottom of the anaerobic sealed tank 1, and the blade 7 rotates in the opposite direction to shear and mince the organic solid waste. At the same time, the nozzle 13 is used to spray anaerobic or facultative anaerobic microorganisms on the surface of the organic solid waste, and then with the stirring of the scraper 5, the anaerobic or facultative anaerobic microorganisms are distributed more evenly, and the methane gas generated during the fermentation process is introduced into the gas storage tank through the exhaust pipe 10 for unified collection, and finally the fermented organic solid waste is discharged from the anaerobic sealed tank 1 through the discharge pipe 14.

[0048] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An anaerobic fermentation device for organic solid waste, comprising an anaerobic sealed tank (1) supported on the ground by a support frame (2), characterized in that: The anaerobic sealed tank (1) is provided with a turning assembly and a grinding assembly, the turning assembly comprising a hollow shaft (3) and a connecting rod (4), the hollow shaft (3) being rotatably connected to the inner walls on both sides of the anaerobic sealed tank (1), the connecting rod (4) being fixedly connected to the circumferential outer wall of the hollow shaft (3), and the end of the connecting rod (4) being fixedly connected to a scraper (5) by bolts, the scraper (5) being in contact with the inner wall of the bottom of the anaerobic sealed tank (1), and the inner wall of the bottom of the anaerobic sealed tank (1) and the scraper (5) are both "V" shaped.

2. The anaerobic fermentation device for organic solid waste according to claim 1, characterized in that: The mincing assembly comprises a rotating shaft (6) rotatably connected to the inner wall of the anaerobic sealed tank (1) and a plurality of connecting plates fixedly connected to the circumferential outer wall of the rotating shaft (6); a plurality of radially arranged blades (7) are fixed to the inner wall of the connecting plate by bolts, and the rotating shaft (6) is rotatably matched to the inner wall of the hollow shaft (3).

3. The anaerobic fermentation device for organic solid waste according to claim 1, characterized in that: The inner wall of one side of the oxygen-free sealed tank (1) is fixedly connected to and communicated with an exhaust pipe (10), and the other end of the exhaust pipe (10) is connected to a gas storage tank.

4. The anaerobic fermentation device for organic solid waste according to claim 1, characterized in that: The inner wall at the top of the oxygen-free sealed tank (1) is fixedly connected to a feed hopper (11), the outer wall at the top of the feed hopper (11) is movably mounted with a sealing cover (12), and a handle is fixed to the top of the sealing cover (12) via bolts.

5. The anaerobic fermentation device for organic solid waste according to claim 1, characterized in that: The lower surface of the top of the anaerobic sealed tank (1) is fixedly connected and communicated with a plurality of nozzles (13); the inner wall of the bottom of the anaerobic sealed tank (1) is fixedly connected and communicated with a discharge pipe (14); a discharge valve (15) is installed at the bottom of the discharge pipe (14).

6. The anaerobic fermentation device for organic solid waste according to claim 2, characterized in that: The outer wall of the oxygen-free sealed tank (1) is fixed with a mounting box (8) by means of bolts, and the mounting box (8) has a built-in driving component (9).

7. The anaerobic fermentation device for organic solid waste according to claim 6, characterized in that: The driving assembly (9) comprises two bevel gears (16), the two bevel gears (16) are respectively fixedly connected to the hollow shaft (3) and the outer wall of the rotating shaft (6), and the outer walls of the two bevel gears (16) are meshed with the same bevel gear (17).

8. The anaerobic fermentation device for organic solid waste according to claim 7, characterized in that: The inner wall of the second bevel gear (17) is fixedly connected with a transmission shaft (18), the other end of the transmission shaft (18) passes through the installation box (8) and is fixedly connected with a motor (19) through a coupling, and the motor (19) is fixed to the top surface of the installation box (8) by bolts.

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