Sludge bio-fermentation ventilation device

Abstract

The utility model relates to the field of sludge biological fermentation technology, especially a sludge biological fermentation ventilation equipment, including fermentation vat, the top of fermentation vat is fixed with the lid, still including oxygen supply pipe, oxygen supply pipe rotation is connected in the bottom of lid, oxygen supply pipe bottom is fixed with four tubular aeration pipes, the outside fixed support frame of oxygen supply pipe middle part, four rotating shafts are rotationally connected to the outside of support frame equidistance. Through oxygen supply pipe counterclockwise rotation drive support frame and four scrapers counterclockwise rotation, four scrapers scrape off the sludge adhered on the inner wall of fermentation vat, through four third gear counterclockwise rotation drive four rotating shafts and four scrapers counterclockwise rotation, and then four scrapers scrape off the sludge to the fermentation vat inside center and throw, in the sludge cleaning of the inner wall of fermentation vat adhered to the edge sludge and throw to the center, so that the sludge can fully ferment, improve the uniformity of fermentation product's maturity, improve the quality of final product.

Description

Technical Field

[0001] This utility model relates to the field of sludge biological fermentation technology, and in particular to a sludge biological fermentation ventilation device. Background Technology

[0002] Sludge biological fermentation is divided into aerobic fermentation and anaerobic fermentation. Aerobic fermentation of sludge mainly involves mixing sludge with straw and other materials to form a pile. The temperature and oxygen content in the sludge are controlled by turning and ventilation to achieve the purpose of sludge reduction and resource utilization.

[0003] According to the patent document with publication number CN217230510U, the patent document describes a process where a first pump draws sludge into a fermentation chamber. A drive motor drives the meshing motion of the active and driven gears, which in turn rotates the stirring shaft to agitate the sludge. During this process, an air compressor continuously supplies air to the main aeration pipe, and the aeration branch pipes continuously and evenly aerate the sludge as they rotate with the stirring rod. By placing the aeration branch pipes inside the V-shaped stirring rod, sludge is prevented from entering the aeration branch pipes. The waste gas generated by the aerobic fermentation of the sludge is treated by a waste gas processor, and the fermented sludge is extracted by a second pump.

[0004] According to the patent document, during the microbial fermentation process of sludge, microbial metabolism produces some sticky substances (such as extracellular polymers), which cause some sludge to adhere to the inner wall of the fermentation chamber. The adhered sludge cannot fully participate in the fermentation process, resulting in uneven maturity of the fermented product and affecting the quality of the final product. Utility Model Content

[0005] The purpose of this invention is to provide a sludge biological fermentation ventilation device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A sludge biological fermentation ventilation device includes a fermentation tank with a lid fixed to the top. It also includes an oxygen supply pipe rotatably connected to the bottom of the lid. Four tubular aeration pipes are fixed to the bottom of the oxygen supply pipe. A support frame is fixed to the outer side of the middle section of the oxygen supply pipe. Four rotating shafts are rotatably connected at equal intervals to the outer side of the support frame. A third gear is fixed to the top of each of the four rotating shafts, and a scraper is fixed to the bottom of each of the four rotating shafts. A fourth gear is provided on the top of the support frame, and all four third gears mesh with the fourth gear. A second motor is fixedly installed at the input end of the third gear on one side of the oxygen supply pipe.

[0008] Preferably, a feed pipe is fixed to one side of the top of the fermentation tank, and a feed valve is fixed inside the feed pipe; a discharge pipe is fixed to the bottom of the fermentation tank, and a discharge valve is fixed inside the discharge pipe.

[0009] Preferably, a first gear is fixed to the outer side of one end of the oxygen pipe extending out of the barrel lid, a second gear is engaged on the other side of the first gear, and a first motor is fixedly installed at the input end of the second gear.

[0010] Preferably, the oxygen supply pipe consists of one main intake pipe and four exhaust branch pipes, with the four tubular aeration pipes fixedly connected to the four exhaust branch pipes respectively.

[0011] Preferably, the fourth gear has a circular hole for the oxygen supply tube to pass through.

[0012] Preferably, a first fixing frame is fixed to the other side of the top of the bucket lid, a first motor is fixedly installed on the top of the first fixing frame, a second fixing frame is fixed to the other side of the top of the support frame, and a second motor is fixedly installed on the top of the second fixing frame.

[0013] Preferably, all four scrapers are arc-shaped, and the sharpest points of all four scrapers are in contact with the inner wall of the fermentation tank.

[0014] The beneficial effects compared with existing technologies are as follows: the counterclockwise rotation of the oxygen pipe drives the support frame and four scrapers to rotate counterclockwise. The four scrapers scrape off the sludge adhering to the inner wall of the fermentation tank. The counterclockwise rotation of the four third gears drives the four rotating shafts and four scrapers to rotate counterclockwise. In turn, the four scrapers turn and throw the scraped sludge towards the center of the fermentation tank. While cleaning the sludge adhering to the inner wall of the fermentation tank, the sludge at the edge is turned and thrown to the center, so that the sludge can be fully fermented, improving the uniformity of the maturity of the fermented product and improving the quality of the final product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a sludge biological fermentation ventilation device according to the present invention;

[0017] Figure 2 This is a top view of a sludge biological fermentation ventilation device according to the present invention;

[0018] Figure 3 yes Figure 2 Sectional view at point AA;

[0019] Figure 4 This is a schematic diagram of the oxygenation pipe and tubular aeration pipe structure of the sludge biological fermentation ventilation equipment described in this utility model;

[0020] Figure 5 This is a schematic diagram of the support frame and rotating shaft structure of the sludge biological fermentation ventilation equipment described in this utility model;

[0021] Figure 6 This is a schematic diagram of the support frame structure of the sludge biological fermentation ventilation equipment described in this utility model;

[0022] Figure 7 This is a schematic diagram of the support frame and oxygen pipe structure of the sludge biological fermentation ventilation equipment described in this utility model;

[0023] Figure 8 This is a schematic diagram of the scraper and third gear structure of a sludge biological fermentation ventilation device according to the present invention.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Fermentation tank; 2. Tank lid; 3. Feed pipe; 4. Discharge pipe; 5. Aeration pipe; 6. Tubular aeration pipe; 7. First gear; 8. Second gear; 9. First motor; 10. Support frame; 11. Rotating shaft; 12. Scraper; 13. Third gear; 14. Fourth gear; 15. Second motor. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known device such as a computer that provides control.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-8 As shown, a sludge biological fermentation ventilation device includes a fermentation tank 1, a tank cover 2 fixed on the top of the fermentation tank 1, and an oxygen supply pipe 5.

[0029] In this embodiment: the oxygenation pipe 5 is rotatably connected to the bottom of the bucket cover 2. Four tubular aeration pipes 6 are fixed to the bottom of the oxygenation pipe 5. The oxygenation pipe 5 consists of a main inlet pipe and four exhaust branch pipes. The four tubular aeration pipes 6 are respectively fixedly connected to the four exhaust branch pipes. A first gear 7 is fixed to the outer side of one end of the oxygenation pipe 5 extending from the bucket cover 2. A second gear 8 meshes with the other side of the first gear 7. A first motor 9 is fixedly installed at the input end of the second gear 8. A feed pipe 3 is fixed to one side of the top of the fermentation tank 1. A feed valve is fixed inside the feed pipe 3. A discharge pipe 4 is fixed to the bottom of the fermentation tank 1. A discharge valve is fixed inside the discharge pipe 4. The discharge is achieved through the feed pipe... 3. Sludge to be fermented is injected into fermentation tank 1. The first motor 9 drives the second gear 8 to rotate clockwise. The second gear 8 meshes with the first gear 7, which in turn drives the first gear 7 to rotate counterclockwise. This causes the oxygen supply pipe 5 and the four tubular aeration pipes 6 to rotate counterclockwise in fermentation tank 1. The four tubular aeration pipes 6 stir the sludge. During this process, oxygen is continuously introduced into the oxygen supply pipe 5. The oxygen enters the sludge through the four tubular aeration pipes 6 to promote fermentation. The waste gas generated during fermentation can be discharged from the feed pipe 3 for treatment. The feed pipe 3 is opened and closed by the feed valve, and the discharge pipe 4 is opened and closed by the discharge valve.

[0030] In this embodiment: a support frame 10 is fixed to the outer side of the middle part of the oxygen pipe 5. Four rotating shafts 11 are equidistantly rotatably connected to the outer side of the support frame 10. A third gear 13 is fixed to the top of each of the four rotating shafts 11, and a scraper 12 is fixed to the bottom of each of the four rotating shafts 11. A fourth gear 14 is provided on the top of the support frame 10, and the four third gears 13 mesh with the fourth gear 14. A second motor 15 is fixedly installed at the input end of the third gear 13 on one side of the oxygen pipe 5. The fourth gear 14 has a round hole for the oxygen pipe 5 to pass through. A first fixing frame is fixed to the other side of the top of the bucket lid 2, and a first motor 9 is fixedly installed on the top of the first fixing frame. A second fixing frame is fixed to the other side of the top of the support frame 10, and a second motor 15 is fixedly installed on the top of the second fixing frame. All four scrapers 12 are arc-shaped, and the sharpest points of all four scrapers 12 are in contact with the inner wall of the fermentation tank 1. The oxygen pipe 5 rotates counterclockwise, causing the support frame 10 and four scrapers 12 to rotate counterclockwise. The four scrapers 12 scrape off the sludge adhering to the inner wall of the fermentation tank 1. The second motor 15 drives the third gear 13 on one side of the oxygen pipe 5 to rotate counterclockwise. All four third gears 13 mesh with the fourth gear 14, which in turn drives the fourth gear 14 to rotate clockwise, thereby driving the other three third gears 13 to rotate counterclockwise. The counterclockwise rotation of the four third gears 13 drives the four rotating shafts 11 and the four scrapers 12 to rotate counterclockwise, thereby causing the four scrapers 12 to throw the scraped sludge towards the center of the fermentation tank 1. Then, the second motor 15 drives the third gear 13 on one side of the oxygen pipe 5 to rotate clockwise, thereby driving the fourth gear 14 to rotate counterclockwise to reset and the other three third gears 13 to rotate clockwise to reset. This cycle repeats periodically.

[0031] Working principle: The first motor 9 drives the second gear 8 to rotate clockwise. The second gear 8 meshes with the first gear 7, which in turn drives the first gear 7 to rotate counterclockwise. This causes the oxygenation pipe 5 and the four tubular aeration pipes 6 to rotate counterclockwise inside the fermentation tank 1. The four tubular aeration pipes 6 agitate the sludge. During this process, oxygen is continuously introduced into the oxygenation pipe 5. The oxygen enters the sludge through the four tubular aeration pipes 6 to promote fermentation. The waste gas generated during fermentation can be discharged from the feed pipe 3 for treatment. During this process, the counterclockwise rotation of the oxygenation pipe 5 drives the support frame 10 and the four scrapers 12 to rotate counterclockwise. The four scrapers 12 scrape off the sludge adhering to the inner wall of the fermentation tank 1. The second motor 15 drives the oxygenation pipe 5 to rotate counterclockwise. The third gear 13 on the side rotates counterclockwise, and all four third gears 13 mesh with the fourth gear 14, which in turn drives the fourth gear 14 to rotate clockwise, thereby driving the other three third gears 13 to rotate counterclockwise. The counterclockwise rotation of the four third gears 13 drives the four rotating shafts 11 and the four scrapers 12 to rotate counterclockwise, and the four scrapers 12 throw the scraped sludge into the center of the fermentation tank 1. Then, the second motor 15 drives the third gear 13 on one side of the oxygen pipe 5 to rotate clockwise, which in turn drives the fourth gear 14 to rotate counterclockwise to reset and the other three third gears 13 to rotate clockwise to reset. This cycle continues. After the sludge fermentation is completed, the discharge valve is opened to allow the fermented sludge to be discharged from the discharge pipe 4.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sludge biological fermentation ventilation device, comprising a fermentation tank (1), wherein a tank cover (2) is fixed to the top of the fermentation tank (1), characterized in that: It also includes an oxygenation pipe (5), which is rotatably connected to the bottom of the bucket cover (2). Four tubular aeration pipes (6) are fixed to the bottom of the oxygenation pipe (5). A support frame (10) is fixed to the outer side of the middle part of the oxygenation pipe (5). Four rotating shafts (11) are rotatably connected to the outer side of the support frame (10) at equal distances. A third gear (13) is fixed to the top of each of the four rotating shafts (11). A scraper (12) is fixed to the bottom of each of the four rotating shafts (11). A fourth gear (14) is provided on the top of the support frame (10). All four third gears (13) mesh with the fourth gear (14). A second motor (15) is fixedly installed at the input end of the third gear (13) on one side of the oxygenation pipe (5).

2. The sludge biological fermentation ventilation equipment according to claim 1, characterized in that: A feed pipe (3) is fixed on one side of the top of the fermentation tank (1), and a feed valve is fixed inside the feed pipe (3). A discharge pipe (4) is fixed at the bottom of the fermentation tank (1), and a discharge valve is fixed inside the discharge pipe (4).

3. The sludge biological fermentation ventilation equipment according to claim 1, characterized in that: The oxygen pipe (5) extends out of the barrel cover (2) and is fixed with a first gear (7). The other side of the first gear (7) is meshed with a second gear (8). The input end of the second gear (8) is fixedly equipped with a first motor (9).

4. The sludge biological fermentation ventilation equipment according to claim 1, characterized in that: The oxygen supply pipe (5) consists of one main intake pipe and four exhaust branch pipes, and the four tubular aeration pipes (6) are respectively fixedly connected to the four exhaust branch pipes.

5. The sludge biological fermentation ventilation equipment according to claim 1, characterized in that: The fourth gear (14) has a circular hole for the oxygen tube (5) to pass through.

6. The sludge biological fermentation ventilation equipment according to claim 3, characterized in that: A first fixing frame is fixed on the other side of the top of the bucket lid (2), and the first motor (9) is fixedly installed on the top of the first fixing frame. A second fixing frame is fixed on the other side of the top of the support frame (10), and the second motor (15) is fixedly installed on the top of the second fixing frame.

7. The sludge biological fermentation ventilation equipment according to claim 1, characterized in that: All four scrapers (12) are arc-shaped, and the sharpest points of all four scrapers (12) are in contact with the inner wall of the fermentation tank (1).

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