Double-shaft stirring dryer with aeration mechanism

Abstract

The utility model discloses a double-shaft stirring dryer with an aeration mechanism, and belongs to the technical field of stirring dryers. Which comprises a shell (8), a stirring shaft (6) is arranged in the shell (8), and a driving mechanism for driving the stirring shaft (6) to rotate is arranged on one side of the shell (8), and is characterized in that an aeration mechanism (10) is arranged, the aeration mechanism (10) comprises a fan (13), an air inlet of the fan (13) is connected with a heat source, an air outlet of the fan (13) is connected with an aeration pipeline, the aeration pipeline is arranged at the bottom of the shell (8), a plurality of aeration heads are led out from the aeration pipeline, and the aeration heads are connected with the fan (13). And the aeration head is detachably arranged at the bottom of the shell (8) and is communicated with the working cavity. According to the double-shaft stirring drying machine with the aeration mechanism, the aeration mechanism is arranged at the bottom of the shell, and high-temperature gas is introduced into the working cavity through the aeration mechanism, so that enough temperature and oxygen content in the working cavity are ensured, the evaporation speed is increased, and the aerobic fermentation reaction speed of materials in the working cavity is increased.

Description

Technical Field

[0001] The invention discloses a double-shaft stirring dryer with an aeration mechanism, belonging to the technical field of stirring dryers. Background Art

[0002] Twin-shaft agitator dryers are a common type of agitator in the industry, often used for a variety of material drying applications, such as sludge drying and aerobic waste fermentation. Aerobic waste fermentation requires maintaining a certain temperature and oxygen content within the working chamber for efficient fermentation.

[0003] In order to increase the oxygen content in the working chamber, an aeration mechanism is generally required. In the prior art, the following embodiments are specifically included:

[0004] (1) In the technical solution recorded in the Chinese utility model patent with application number 202223427115.8, application date December 19, 2022, and patent name “Fertilizer fermentation and mixing equipment”, the aeration pipe is directly set at the bottom of the fermentation cylinder. Although this method is relatively simple, it is found in actual use that due to the relatively single aeration pipeline, uneven aeration is prone to occur.

[0005] (2) In the technical solutions recorded in the Chinese utility model patent with application number 201820828566.7, application date May 31, 2018, and patent name “A kind of aerobic fermentation equipment for organic solid waste treatment”, and the Chinese utility model patent with application number 202420012568.4, application date January 3, 2018, and patent name “A kind of self-rotating aeration stirring type anaerobic reactor”, the aeration outlet is set at the stirring shaft. This method can greatly improve the feeding efficiency, but its structure is relatively complicated.

[0006] (3) In the technical solution described in the Chinese utility model patent with application number 202321484402.4, application date June 9, 2023, and patent name “An organic fertilizer fermentation aeration tank”, a plurality of air vents are arranged at the bottom of the tank, and a separate oxygen replenishing chamber is provided at the bottom of the tank. Oxygen is delivered to the air vents through the oxygen replenishing chamber and then into the tank body. This method overcomes the shortcomings of the above two types of existing technologies. However, in actual implementation, it was found that once the air vents are blocked, the subsequent repair and maintenance costs will be greatly increased. Although a cleaning brush driven by a screw is provided in this technical solution, and the screw rotates to drive the cleaning brush to move back and forth to clean the air vents, this method also greatly increases the cost and complexity of the equipment.

[0007] Therefore, designing a technical solution that can improve the oxygen supply efficiency to meet the needs of the fermentation reaction and facilitate subsequent maintenance is an urgent problem to be solved in this field. Utility Model Content

[0008] The technical problem to be solved by the utility model is: to overcome the shortcomings of the existing technology and provide a double-shaft stirring dryer with an aeration mechanism, which is provided with an aeration mechanism at the bottom of the shell, and introduces high-temperature gas into the working chamber through the aeration mechanism, thereby ensuring that the working chamber has sufficient temperature and oxygen content, which is beneficial to increasing the fermentation reaction rate in the working chamber.

[0009] The technical solution adopted by the utility model to solve the technical problem is: the double-shaft stirring dryer with an aeration mechanism comprises a shell, the inner cavity of the shell is a working chamber, two stirring shafts are horizontally arranged in the shell, and a driving mechanism for driving the stirring shafts to rotate is provided on one side of the shell. The utility model is characterized in that an aeration mechanism is provided, the aeration mechanism includes a fan, the air inlet of the fan is connected to a heat source, the air outlet of the fan is connected to an aeration pipeline, the aeration pipeline is arranged at the bottom of the shell, and a plurality of aeration heads are led out from the aeration pipeline. The aeration heads are detachably installed at the bottom of the shell and are connected to the working chamber.

[0010] Preferably, the aeration pipeline includes an aeration hard pipe, which is arranged at the bottom of the shell, and a plurality of aeration hoses are led out from the surface of the aeration hard pipe, and the aeration head is installed at the end of the aeration hose.

[0011] Preferably, the aeration hoses are arranged on both sides of the aeration rigid pipe, and the multiple aeration hoses on each side are arranged along the axial direction of the aeration rigid pipe.

[0012] Preferably, the aeration head includes a sleeve, an inner tube is provided in the inner cavity of the sleeve, the aeration hose is connected to the inner tube, the sleeve passes through the shell, and the outlet of the inner tube is connected to the working chamber.

[0013] Preferably, a mesh plate is provided at the outlet of the inner tube.

[0014] Preferably, the aeration hard pipe is arranged at the bottom of the shell along the length direction of the shell.

[0015] Preferably, the shell includes an outer shell and an inner shell, the outer shell is sleeved on the outside of the inner shell, and an interlayer is formed between the outer shell and the inner shell, and the coil is arranged in the interlayer.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this twin-shaft stirring dryer with an aeration mechanism, an aeration mechanism is provided at the bottom of the shell, and high-temperature gas is introduced into the working chamber through the aeration mechanism, thereby ensuring that the working chamber has sufficient temperature and oxygen content, which is beneficial to increasing the fermentation reaction rate in the working chamber, and the aeration head is detachably installed at the bottom of the shell, which is beneficial to later maintenance and repair.

[0018] A mesh plate is provided at the air outlet of the aeration head to prevent the aeration head from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an axonometric drawing of a double-shaft stirring dryer with an aeration mechanism.

[0020] Figure 2 This is a front view of a twin-shaft stirring dryer with an aeration mechanism.

[0021] Figure 3 This is the axonometric drawing of the aeration mechanism in a double-shaft stirring dryer with an aeration mechanism.

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0023] Among them: 1. reducer 2. feed inlet 3. suction fan 4. suction pipe 5. upper cover 6. stirring shaft 7. base 8. shell 9. drive motor 10. aeration mechanism 11. air supply joint 12. bracket 13. fan 14. aeration hard pipe 15. aeration hose 16. sleeve 17. mesh plate. DETAILED DESCRIPTION

[0024] Figures 1 to 4 This is the best embodiment of the present invention, Figures 1 to 4 The utility model is further described.

[0025] like Figures 1 and 2 As shown, a twin-shaft agitator dryer with an aeration mechanism includes a base 7, a housing 8 disposed atop the base 7, and a working chamber for agitation and drying. Two agitator shafts 6 are horizontally arranged within the housing 8. A reducer 1 and a drive motor 9 are mounted on the surface of the base 7, located on the same side of the housing 8. The drive motor 9 drives the two agitator shafts 6 to rotate within the housing 8 via the reducer 1, agitating and drying the sludge within the housing 8.

[0026] The upper end of the shell 8 is closed by the upper cover 5, and a feed port 2 is provided on the surface of the upper cover 5, and the sludge enters the shell 8 from the feed port 2. A suction fan 3 is also provided on the top of the shell 8, and the air inlet end of the suction fan 3 is connected to the shell 8 through the upper cover 5. The air outlet end of the suction fan 3 is connected to one end of the suction pipe 4, and the outlet of the suction pipe 4 is connected to the external exhaust gas treatment unit. An air supply connector 11 is also provided on the side of the casing 8, which is used to supply air to the casing 11 when the suction fan 3 is working. Similar to the prior art, the shell 8 includes an outer shell and an inner shell, and the outer shell is sleeved on the outside of the inner shell, and a sandwich is formed between the outer shell and the inner shell. A coil is provided in the sandwich, and the shell 8 is heated by passing high-temperature steam into the coil.

[0027] An aeration mechanism 10 is provided at the bottom of the base 7 and is arranged at the bottom of the housing 8 along the length direction thereof. Figure 3 As shown, the aeration mechanism 10 includes a fan 13, which is fixed to the ground via a bracket 12. The air inlet of the fan 13 is connected to an external heat source, such as high-temperature steam, and the air outlet of the fan 13 is connected to an aeration rigid pipe 14. The aeration rigid pipe 14 is located at the bottom of the housing 8 and is arranged along the length of the housing 8. Aeration flexible pipes 15 are provided on both sides of the aeration rigid pipe 14, and are arranged along the axial direction of the aeration rigid pipe 14.

[0028] One end of the aeration hose 15 is connected to the inner cavity of the aeration hard pipe 14, and an aeration head is installed at the other end of each aeration hose 15. The multiple aeration heads on both sides of the aeration hard pipe 14 are respectively arranged on both sides of the bottom of the shell 8, and are evenly arranged along the length of the shell 8, and are connected to the working chamber inside the shell 8.

[0029] Combine Figure 4 The aeration head includes a sleeve 16, the bottom of which is a flange structure. The middle of the sleeve 16 is an axially extending inner cavity, within which an inner tube is disposed. The port of the aeration hose 15 is connected to the inner tube of the sleeve 16 from the bottom of the sleeve 16, and a mesh plate 17 is disposed at the top of the inner tube. The aeration head is fixed to the bottom surface of the housing 8 through the bottom of the sleeve 16. The sleeve 16 sequentially penetrates the inner shell and outer shell of the housing 8, extends to the bottom surface of the working chamber, and is connected to the working chamber.

[0030] The specific working process and working principle are as follows:

[0031] The material to be processed is fed into the housing 8 through the feed port 2. A drive motor 9, located on the surface of the base 7, rotates the two stirring shafts 6 via a reducer 1, stirring the material. While stirring and drying occur within the working chamber, a blower 13 operates, pumping high-temperature steam from external sources into the chamber. This provides sufficient oxygen to the material during stirring, ensuring a more efficient fermentation reaction within the chamber.

[0032] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A double-shaft stirring dryer with an aeration mechanism, comprising a housing (8), wherein the inner cavity of the housing (8) is a working cavity, two stirring shafts (6) are horizontally arranged in the housing (8), and a driving mechanism for driving the stirring shafts (6) to rotate is provided on one side of the housing (8), characterized in that: An aeration mechanism (10) is provided, the aeration mechanism (10) includes a fan (13), an air inlet of the fan (13) is connected to a heat source, an air outlet of the fan (13) is connected to an aeration pipeline, the aeration pipeline is arranged at the bottom of the shell (8), and a plurality of aeration heads are led out from the aeration pipeline. The aeration heads are detachably mounted at the bottom of the shell (8) and communicated with the working chamber.

2. The double-shaft stirring dryer with an aeration mechanism according to claim 1, characterized in that: The aeration pipeline includes an aeration hard pipe (14), which is arranged at the bottom of the shell (8). A plurality of aeration hoses (15) are led out from the surface of the aeration hard pipe (14), and an aeration head is installed at the end of the aeration hose (15).

3. The double-shaft stirring dryer with an aeration mechanism according to claim 2, characterized in that: The aeration hoses (15) are arranged on both sides of the aeration hard pipe (14), and the multiple aeration hoses (15) on each side are arranged along the axial direction of the aeration hard pipe (14).

4. The double-shaft stirring dryer with an aeration mechanism according to claim 2, characterized in that: The aeration head comprises a sleeve (16), an inner tube is arranged in the inner cavity of the sleeve (16), the aeration hose (15) is connected to the inner tube, the sleeve (16) passes through the shell (8), and the outlet of the inner tube is connected to the working chamber.

5. The double-shaft stirring dryer with an aeration mechanism according to claim 4, characterized in that: A mesh plate (17) is provided at the outlet of the inner tube.

6. The twin-shaft stirring dryer with an aeration mechanism according to claim 2, characterized in that: The aeration hard pipe (14) is arranged at the bottom of the shell (8) along the length direction of the shell (8).

7. The double-shaft stirring dryer with an aeration mechanism according to claim 1, characterized in that: The shell (8) comprises an outer shell and an inner shell, the outer shell is sleeved on the outside of the inner shell, and an interlayer is formed between the outer shell and the inner shell, and a coil is arranged in the interlayer.

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