Oxygen exposure device for sludge raw material fermentation tank

Abstract

The utility model discloses a sludge raw material fermentation tank oxygen aeration device, which comprises a fermentation tank main body and a second pump machine, the middle position in the fermentation tank main body is rotatably connected with a mixing drum, and the middle position in the mixing drum is provided with an air supply pipe. According to the utility model, by adopting the overturning blades and the bevel gear set, in the gas introduction process, the gear disc can be driven to rotate through the operation of the second motor, and the stirring barrel and the gas supply pipe can be synchronously driven to rotate through the gear disc, so that the aeration pipe cannot be damaged when the stirring barrel rotates; according to the present invention, the gas supply pipe rotates to ensure the normal outflow of the gas, and the bevel gear set can be driven to rotate when the gas supply pipe rotates so as to turn the stirring rod, such that the turning blade is driven to turn the sludge up and down, the contact area of the sludge and the gas is increased, the fermentation operation is well performed, and the advantages of good aeration effect and full gas-sludge contact are provided.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to an aeration device for a sludge raw material fermentation tank. Background Art

[0002] Aerobic fermentation of sludge is a comprehensive sludge treatment technology that is harmless, volume-reducing and stabilized. It is also called aerobic composting technology. It utilizes the action of aerobic thermophilic bacteria and thermophilic bacteria to decompose organic matter in sludge to form a substance similar to humus soil. The heat generated during the metabolic process can increase the temperature of the pile layer to above 55°C, which can effectively kill pathogens, parasite eggs and viruses, and increase the fertilizer content of sludge. It is economical and practical, and does not require external energy. However, the aerobic fermentation process of sludge requires continuous supplementation of oxygen in the sludge pile to keep it sterilized at high temperature and avoid anaerobic fermentation due to lack of oxygen, which causes secondary pollution to the air. At present, aerobic fermentation of sludge is carried out by circulating materials in the fermentation tank while introducing air into the fermentation tank.

[0003] The publication number of the existing public technology is: CN217230510U. A sludge aerobic fermentation aeration device comprises a fermentation bin, a shaft frame is provided on the top of the fermentation bin, a stirring shaft is sleeved in the shaft frame and extends to the fermentation bin, a stirring rod is fixed on the stirring shaft, an aeration component is arranged in the stirring shaft, the input end of the aeration component is connected to the air compressor through a rotary joint, a driving mechanism is provided on one side of the shaft frame, the stirring shaft is meshed with the driving gear in the driving mechanism through a driven gear, the device has a simple structure, the aeration main pipe is installed in the stirring shaft through an embedded design, and the sludge is prevented from entering the aeration main pipe. When the stirring shaft drives the stirring rod to rotate and stir the sludge in the fermentation bin, the aeration branch pipe in the stirring rod can rotate with the stirring rod, so that the sludge can be evenly aerated, so that the aeration effect of the aeration branch pipe is better, a good oxygen environment is provided for the bacteria, and the efficiency of aerobic fermentation of the sludge is improved.

[0004] However, the above patent still has certain disadvantages when in use: although the internal sludge can be stirred by a stirring rod, the sludge cannot be turned over. At this time, the gas can only contact the same horizontal plane or the local surface of the sludge, resulting in poor overall gas-sludge contact effect, thereby affecting the overall aeration effect. After the sludge fermentation is completed, it is not convenient to clean the fermentation tank, and the residual sludge will pollute the subsequently added sludge, thereby affecting the subsequent fermentation effect.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides an aeration device for a sludge raw material fermentation tank, which has the advantages of easy cleaning, good aeration effect, and sufficient air-sludge contact, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above advantages of easy cleaning, good aeration effect, and sufficient air-sludge contact, the specific technical solutions adopted by the utility model are as follows:

[0010] The aeration device of the sludge raw material fermentation tank comprises a fermentation tank body and a second pump, wherein a stirring drum is rotatably connected to the middle position inside the fermentation tank body, an air supply pipe is arranged in the middle position inside the stirring drum, gear plates are arranged on the top of the stirring drum, the top of the air supply pipe and the top of the second motor, and the gear plates located at the top of the stirring drum and the top of the air supply pipe are meshed and connected with the gear plate located at the top of the second motor, and the second motor is located on one side of the top of the fermentation tank body, a plurality of aeration pipes are arranged on the surface of the air supply pipe penetrating through the surface of the stirring drum, a stirring rod is sleeved on the outer periphery of the aeration pipe, a plurality of flip blades are installed around the surface of the stirring rod, one end of the stirring rod penetrates the surface of the stirring drum and is connected to the air supply pipe through a bevel gear set, the interior of the stirring rod is a hollow structure, and a plurality of air outlet holes are arranged on the surface of the stirring rod and the surface of the aeration pipe correspondingly, a connecting ring is installed on the outer periphery of one end of the stirring rod, a clamping ring is sleeved on the outer periphery of the connecting ring, and the clamping ring is fixedly connected to the stirring drum.

[0011] Furthermore, a movable plate is slidably connected to one side of the top of the fermentation tank body, a scraper ring is fixedly installed on the top of the movable plate, the scraper ring is in contact with the inner wall of the fermentation tank body, and a channel for use of a stirring drum and a stirring rod is opened in the middle of the scraper ring. A plurality of groups of teeth are evenly arranged on the surface of the movable plate, the teeth are meshed with the gear cylinder, a first motor is connected to one end of the gear cylinder, and the first motor is located at the top of the fermentation tank body. A plurality of cleaning plates are symmetrically installed on both sides of the top of the fermentation tank body, and a plurality of groups of high-pressure nozzles are evenly arranged on the surface of the cleaning plates.

[0012] Furthermore, an air compressor is fixedly installed at one side of the top of the fermentation tank, one end of the air compressor is connected to the air supply pipe through an air guide pipe, and the bottom end of the air guide pipe is rotatably connected to the top end of the air supply pipe.

[0013] Furthermore, a water pump is fixedly installed at the other side of the top of the fermentation tank body, and the water pump is connected to the high-pressure nozzle through a pipeline.

[0014] Furthermore, a first pump is connected to the bottom of one side of the fermentation tank body through a pipeline.

[0015] Furthermore, a second pump is connected to the top of the other side surface of the fermentation tank body through a pipeline.

[0016] Furthermore, a channel for exhausting waste gas is provided at the top of the fermentation tank body surface.

[0017] Furthermore, the bevel gear set is composed of bevel gears, and the bevel gears are respectively located on the outer peripheral surface of the air supply pipe and the end of the stirring rod.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides an aeration device for a sludge raw material fermentation tank, which has the following beneficial effects:

[0020] (1) The utility model adopts a flip blade and a bevel gear set. During the process of gas introduction, the operation of the second motor can drive the gear plate to rotate, and the gear plate can synchronously drive the agitator drum and the air supply pipe to rotate, so as to ensure that the aeration pipe is not damaged when the agitator drum rotates, and the normal outflow of gas is ensured. When the air supply pipe rotates, the bevel gear set can be driven to rotate, so that the agitator rod can be flipped, thereby driving the flip blade to flip the sludge up and down, increasing the contact area between the sludge and the gas, and better performing the fermentation operation. It has the advantages of good aeration effect and sufficient gas-sludge contact.

[0021] (2) The utility model adopts a high-pressure nozzle and a scraper ring. After the fermentation is completed, the sludge can be pumped out by the first pump. Then, after the sludge is pumped out, the clean water source introduced by the water pump can be sprayed out through the internal high-pressure nozzle to achieve the cleaning operation inside the tank body. At the same time, the operation of the first motor can drive the movable plate to move up and down as a whole, so that the scraper ring can scrape off the residue on the inner wall of the tank body, thereby improving the overall cleaning effect and facilitating the introduction of new sludge for subsequent fermentation. It has the advantage of being easy to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the aeration device for the sludge raw material fermentation tank proposed by the utility model;

[0024] Figure 2 It is a structural schematic diagram of the stirring rod of the utility model;

[0025] Figure 3 It is a cross-sectional view of the connection between the stirring rod and the clamping ring of the utility model;

[0026] Figure 4 It is a connection schematic diagram of the gear cylinder and the moving plate of the utility model.

[0027] In the figure:

[0028] 1. Fermentation tank body; 2. Cleaning plate; 3. High-pressure nozzle; 4. Air compressor; 5. Gear barrel; 6. Air guide pipe; 7. Moving plate; 8. Gears; 9. First motor; 10. Air supply pipe; 11. Gear plate; 12. Mixing barrel; 13. Second motor; 14. Water pump; 15. Clamping ring; 16. Scraping ring; 17. Mixing rod; 18. Flip blade; 19. Aeration pipe; 20. Air outlet; 21. Connecting ring; 22. Bevel gear set; 23. First pump; 24. Second pump. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] According to an embodiment of the utility model, an aeration device for a sludge raw material fermentation tank is provided.

[0031] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4As shown, according to the embodiment of the utility model, the aeration device for the sludge raw material fermentation tank comprises a fermentation tank body 1 and a second pump 24, characterized in that a stirring drum 12 is rotatably connected to the middle position inside the fermentation tank body 1, an air supply pipe 10 is arranged in the middle position inside the stirring drum 12, a gear plate 11 is arranged at the top of the stirring drum 12, the top of the air supply pipe 10 and the top of the second motor 13, and the gear plates 11 located at the top of the stirring drum 12 and the top of the air supply pipe 10 are meshed and connected with the gear plate 11 located at the top of the second motor 13, and the second motor 13 is located at one side of the top of the fermentation tank body 1, a plurality of aeration pipes 19 are arranged on the surface of the air supply pipe 10 penetrating through the surface of the stirring drum 12, and a stirring pipe 19 is sleeved on the outer periphery. A stirring rod 17, with several groups of flip blades 18 installed around the surface of the stirring rod 17, one end of the stirring rod 17 passes through the surface of the mixing drum 12 and is connected to the air supply pipe 10 through a bevel gear set 22, the interior of the stirring rod 17 is a hollow structure, and several groups of air outlet holes 20 are correspondingly provided on the surface of the stirring rod 17 and the surface of the aeration pipe 19, a connecting ring 21 is installed on the outer periphery of one end of the stirring rod 17, a clamping ring 15 is sleeved on the outer periphery of the connecting ring 21, and the clamping ring 15 is fixedly connected to the mixing drum 12, an annular groove is provided at the bottom of the gear disk 11 located at the top of the air supply pipe 10, and a support rod is abutted inside the annular groove, so as to support the air supply pipe 10 and ensure that it will not fall off and can realize rotation operation.

[0032] In one embodiment, a movable plate 7 is slidably connected to one side of the top of the fermentation tank body 1, and a scraper ring 16 is fixedly installed on the top of the movable plate 7. The scraper ring 16 abuts against the inner wall of the fermentation tank body 1, and a channel for use of the stirring drum 12 and the stirring rod 17 is opened in the middle of the scraper ring 16. A plurality of groups of teeth 8 are evenly arranged on the surface of the movable plate 7, and the teeth 8 are meshed with the gear drum 5. A first motor 9 is connected to one end of the gear drum 5, and the first motor 9 is located at the top of the fermentation tank body 1. A plurality of groups of cleaning plates 2 are symmetrically installed on both sides of the top of the fermentation tank body 1, and a plurality of groups of high-pressure nozzles 3 are evenly arranged on the surface of the cleaning plates 2.

[0033] In one embodiment, an air compressor 4 is fixedly installed on one side of the top of the fermentation tank, one end of the air compressor 4 is connected to the air supply pipe 10 through the air guide pipe 6, and the bottom end of the air guide pipe 6 is rotatably connected to the top of the air supply pipe 10. The air compressor 4 is configured to continuously blow oxygen into the interior.

[0034] In one embodiment, a water pump 14 is fixedly installed at the other side of the top of the fermentation tank body 1. The water pump 14 is connected to the high-pressure nozzle 3 through a pipeline. The high-pressure nozzle 3 is configured to spray clean water to achieve cleaning operations inside the fermentation tank.

[0035] In one embodiment, a first pump 23 is connected to the bottom of one side surface of the fermentation tank body 1 through a pipeline.

[0036] In one embodiment, a second pump 24 is connected to the top of the other side surface of the fermentation tank body 1 through a pipeline. The first pump 23 and the second pump 24 are both common pump body structures. Since pumps are frequently used in the outside world and their types are diverse, they will not be described in detail here. They mainly play the role of introducing and discharging sludge.

[0037] In one embodiment, a channel for exhausting waste gas is provided at the top of the surface of the fermentation tank body 1 .

[0038] In one embodiment, the bevel gear set 22 is composed of bevel gears, and the bevel gears are respectively located on the outer surface of the air supply pipe 10 and the end of the stirring rod 17. Through the connection operation of the bevel gear set 22, the stirring rod 17 can be driven to rotate when the air supply pipe 10 rotates, so that the flip blades 18 on the surface can flip the internal sludge up and down, thereby increasing the contact area between the gas and the sludge, and thereby improving the subsequent fermentation effect.

[0039] Working principle: In actual use, personnel can use the second pump 24 to introduce the sludge raw materials into the fermentation tank body 1, and then use the operation of the air compressor 4 to introduce the outside air. At this time, the air will enter the air supply pipe 10 along the air guide pipe 6, and then enter the aeration pipe 19 through the air supply pipe 10, and be discharged through the air outlet 20 on the surface, so as to contact the internal sludge, so that the aerobic bacteria therein can perform fermentation operations, and in the process of gas introduction, the operation of the second motor 13 can drive the gear plate 11 to rotate, and the gear plate 11 can synchronously drive the mixing drum 12 and the air supply pipe 10 to rotate, so as to ensure that the aeration pipe 19 will not be damaged when the mixing drum 12 rotates, to ensure the normal outflow of gas, and when the air supply pipe 10 rotates It can drive the bevel gear set 22 to rotate, so that the stirring rod 17 can be flipped, thereby driving the flip blade 18 to flip the sludge up and down, increasing the contact area between the sludge and the gas, and better performing the fermentation operation. After the fermentation is completed, the sludge can be pumped out by the first pump 23, and then after the sludge is pumped out, the clean water source introduced by the water pump 14 can be sprayed out through the internal high-pressure nozzle 3 to achieve the cleaning operation inside the tank body. At the same time, the operation of the first motor 9 can drive the movable plate 7 to move up and down as a whole, so that the scraper ring 16 can scrape off the residue on the inner wall of the tank body, improve the overall cleaning effect, and facilitate the subsequent introduction of new sludge for fermentation. In addition, a channel for exhaust gas discharge is opened on the side of the tank body (not marked in the figure). The device as a whole has the advantages of easy cleaning, good aeration effect, and sufficient air-sludge contact.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An aeration device for a sludge raw material fermentation tank, comprising a fermentation tank body (1) and a second pump (24), characterized in that: A stirring drum (12) is rotatably connected to the middle position of the fermentation tank body (1), an air supply pipe (10) is provided in the middle position of the stirring drum (12), a gear plate (11) is provided at the top of the stirring drum (12), the top of the air supply pipe (10) and the top of the second motor (13), and the gear plate (11) located at the top of the stirring drum (12) and the top of the air supply pipe (10) is meshed with the gear plate (11) located at the top of the second motor (13), and the second motor (13) is located at one side of the top of the fermentation tank body (1), and a plurality of aeration pipes (11) are provided on the surface of the air supply pipe (10) that penetrates through the surface of the stirring drum (12). 9), a stirring rod (17) is sleeved on the outer periphery of the aeration pipe (19), and a plurality of groups of flip blades (18) are installed around the surface of the stirring rod (17), one end of the stirring rod (17) passes through the surface of the mixing drum (12) and is connected to the air supply pipe (10) through a bevel gear set (22), the interior of the stirring rod (17) is a hollow structure, and a plurality of groups of air outlet holes (20) are correspondingly provided on the surface of the stirring rod (17) and the surface of the aeration pipe (19), a connecting ring (21) is installed on the outer periphery of one end of the stirring rod (17), a clamping ring (15) is sleeved on the outer periphery of the connecting ring (21), and the clamping ring (15) is fixedly connected to the mixing drum (12).

2. The aeration device for the sludge raw material fermentation tank according to claim 1, characterized in that: A movable plate (7) is slidably connected to one side of the top of the fermentation tank body (1), a scraper ring (16) is fixedly installed on the top of the movable plate (7), the scraper ring (16) is in contact with the inner wall of the fermentation tank body (1), a passage for use by the stirring drum (12) and the stirring rod (17) is opened in the middle of the scraper ring (16), a plurality of groups of teeth (8) are evenly arranged on the surface of the movable plate (7), the teeth (8) are meshed with the gear drum (5), one end of the gear drum (5) is connected to a first motor (9), the first motor (9) is located at the top of the fermentation tank body (1), a plurality of cleaning plates (2) are symmetrically installed on both sides of the top of the fermentation tank body (1), and a plurality of groups of high-pressure nozzles (3) are evenly arranged on the surface of the cleaning plates (2).

3. The aeration device for the sludge raw material fermentation tank according to claim 1, characterized in that: An air compressor (4) is fixedly installed at one side of the top of the fermentation tank, one end of the air compressor (4) is connected to the air supply pipe (10) through an air guide pipe (6), and the bottom end of the air guide pipe (6) is rotatably connected to the top end of the air supply pipe (10).

4. The aeration device for the sludge raw material fermentation tank according to claim 1, characterized in that: A water pump (14) is fixedly installed at the other side of the top of the fermentation tank body (1), and the water pump (14) is connected to the high-pressure nozzle (3) through a pipeline.

5. The aeration device for the sludge raw material fermentation tank according to claim 1, characterized in that: A first pump (23) is connected to the bottom of one side surface of the fermentation tank body (1) via a pipeline.

6. The aeration device for the sludge raw material fermentation tank according to claim 1, characterized in that: The top of the other side surface of the fermentation tank body (1) is connected to a second pump (24) via a pipeline.

7. The aeration device for the sludge raw material fermentation tank according to claim 1, characterized in that: A channel for exhausting waste gas is provided at the top of the surface of the fermentation tank body (1).

8. The aeration device for the sludge raw material fermentation tank according to claim 1, characterized in that: The bevel gear set (22) is composed of bevel gears, and the bevel gears are respectively located at the outer peripheral surface of the air supply pipe (10) and the end of the stirring rod (17).

Images