A kind of sludge aerobic fermentation device stirrer

Abstract

The utility model relates to sludge stirrer technical field especially, more particularly to a kind of stirrer of sludge aerobic fermentation device.Its technical scheme: including upper end mounting plate, the upper end mounting plate is rotationally connected with stirring shaft, the stirring shaft bottom is fixed with stirring rod, the stirring rod bottom is rotationally connected on mounting base, the mounting base outside is fixed with exhaust pipe, the exhaust pipe is evenly installed with spray head, the spray head is provided with anti-blocking component, the stirring rod is hollow structure, the upper end mounting plate is fixed with air pump, air pump and shaft between installation have connecting pipe.The utility model in the process of stirring, using air pump injection gas, and the conveying of stirring shaft, can be continuously aerated in bottom, make air even inject into sludge, and then can better carry out aerobic fermentation treatment, simultaneously using automatic anti-blocking structure, can avoid sludge to be blocked gas hole, ensure normal operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of sludge mixer technology, specifically a mixer for an aerobic fermentation device for sludge. Background Technology

[0002] Aerobic fermentation of sludge is a comprehensive sludge treatment technology that renders sludge harmless, reduces its volume, and stabilizes it; it is also known as aerobic composting technology. Through the biological metabolism of aerobic microorganisms (such as thermophilic bacteria), it decomposes the organic matter in the sludge, forming a substance similar to humus soil.

[0003] When aerobic bacteria ferment and stir, sufficient oxygen needs to be introduced during the stirring process. However, relying solely on stirring to dissolve oxygen is difficult to meet the actual needs. Therefore, it is necessary to add an aeration device to the stirring equipment to ensure sufficient oxygen content in the sludge. Utility Model Content

[0004] The purpose of this invention is to provide a stirrer for an aerobic fermentation device for sludge, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes an upper mounting plate, a stirring shaft rotatably connected to the upper mounting plate, a stirring rod fixed to the bottom of the stirring shaft, the bottom of the stirring rod rotatably connected to a mounting base, an exhaust pipe fixed to the outside of the mounting base, nozzles evenly installed on the exhaust pipe, an anti-clogging component on the nozzles, a hollow stirring rod, an air pump fixed to the upper mounting plate, and a connecting pipe installed between the air pump and the rotating shaft.

[0006] Preferably, a fixed sleeve is rotatably connected to the stirring shaft, an annular groove is formed on the inner side wall of the fixed sleeve, an air inlet is formed on the stirring shaft and aligned with the annular groove, and the bottom of the stirring shaft is an open structure.

[0007] Preferably, a fixing post is fixed between the upper end of the fixing sleeve and the upper mounting plate, and the end of the connecting pipe is fixed on the fixing sleeve.

[0008] Preferably, the anti-clogging component includes a base pipe and a lifting sleeve. The base pipe is fixed to the exhaust pipe, and the lifting sleeve is slidably connected to the outer side of the upper end of the base pipe. The side wall of the lifting sleeve is provided with a connection hole.

[0009] Preferably, a mounting base is fixed inside the base tube, a guide rod is fixed at the upper end of the mounting base, the upper end of the guide rod passes through the lifting sleeve and is slidably connected to the lifting sleeve, and a limit plate is fixed at the upper end of the guide rod.

[0010] Preferably, the bottom of the mounting base has a conical structure, and a connecting spring is fixed between the mounting base and the inner wall of the lifting sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: during the stirring process, the gas is injected by the air pump and transported by the stirring shaft, which can continuously aerate the bottom and evenly inject air into the sludge, thereby enabling better aerobic bacterial fermentation. At the same time, the automatic anti-clogging structure can prevent the sludge from clogging the pores and ensure the normal operation of the equipment. Attached Figure Description

[0012] Figure 1 This is a side cross-sectional view of the agitator of an aerobic fermentation device for sludge according to the present invention; Figure 2 This is a top view of the exhaust pipe of the agitator in an aerobic fermentation device for sludge according to the present invention. Figure 3 This is a schematic diagram of the internal structure of the agitator nozzle of an aerobic fermentation device for sludge according to the present invention. Figure 4 This is a cross-sectional schematic diagram of the agitator fixing sleeve of an aerobic fermentation device for sludge according to the present invention.

[0013] In the diagram: 1. Upper mounting plate; 2. Stirring shaft; 21. Stirring rod; 22. Air inlet; 3. Drive motor; 4. Mounting base; 5. Exhaust pipe; 6. Nozzle; 61. Base pipe; 62. Lifting sleeve; 63. Connecting hole; 64. Mounting seat; 65. Guide rod; 66. Limiting plate; 67. Connecting spring; 7. Fixing sleeve; 71. Fixing column; 72. Annular groove; 73. Connecting pipe; 74. Air pump. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: it includes an upper mounting plate 1, a stirring shaft 2 rotatably connected to the upper mounting plate 1, a stirring rod 21 fixed at the bottom of the stirring shaft 2, the bottom of the stirring rod 21 rotatably connected to the mounting base 4, an exhaust pipe 5 fixed on the outside of the mounting base 4, nozzles 6 evenly installed on the exhaust pipe 5, and an anti-clogging component provided on the nozzles 6. The stirring rod 21 is a hollow structure, an air pump 74 is fixed on the upper mounting plate 1, and a connecting pipe 73 is installed between the air pump 74 and the shaft.

[0016] A fixed sleeve 7 is rotatably connected to the stirring shaft 2. An annular groove 72 is provided on the inner side wall of the fixed sleeve 7. An air inlet 22 is provided on the stirring shaft 2 and aligned with the annular groove 72. The bottom of the stirring shaft 2 is an open structure. A fixed post 71 is fixed between the upper end of the fixed sleeve 7 and the upper mounting plate 1. The end of the connecting pipe 73 is fixed on the fixed sleeve 7.

[0017] The anti-blocking component includes a base tube 61 and a lifting sleeve 62. The base tube 61 is fixed to the exhaust pipe 5. The lifting sleeve 62 is slidably connected to the outer side of the upper end of the base tube 61. A connection hole 63 is opened on the side wall of the lifting sleeve 62. A mounting base 64 is fixed inside the base tube 61. A guide rod 65 is fixed to the upper end of the mounting base 64. The upper end of the guide rod 65 passes through the lifting sleeve 62 and is slidably connected to the lifting sleeve 62. A limit plate 66 is fixed to the upper end of the guide rod 65. The bottom of the mounting base 64 has a conical structure. A connecting spring 67 is fixed between the mounting base 64 and the inner wall of the lifting sleeve 62.

[0018] Working principle: First, connect the entire device to an external power source. Driven by the output of the drive motor 3, the stirring shaft 2 and stirring rod 21 rotate, thus agitating the sludge. During this process, the air pump 74 drives air through the connecting pipe 73 into the stirring shaft 2, which then transports it to the exhaust pipe 5 and finally sprays it out from the nozzle 6, creating an aeration effect at the bottom of the sludge. This ensures sufficient oxygen content within the sludge. The gas in the exhaust pipe 5 will enter the base pipe 61. At this time, the air pressure in the base pipe 61 will increase, which can lift the lifting sleeve 62. When the connecting hole 63 exceeds the upper end of the base pipe 61, the gas in the base pipe 61 will be discharged. At this time, under the impact of the airflow, the sludge will not enter the base pipe 61. When the gas injection stops, the lifting sleeve 62 will be pulled downward by the reset pull of the connecting spring 67, which can close the connecting hole 63, thus preventing the sludge from entering and avoiding the purpose of preventing the nozzle from being blocked by sludge, ensuring the normal operation of the equipment.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stirrer for an aerobic fermentation device for sludge, comprising an upper mounting plate (1), characterized in that: A stirring shaft (2) is rotatably connected to the upper mounting plate (1). A stirring rod (21) is fixed at the bottom of the stirring shaft (2). The bottom of the stirring rod (21) is rotatably connected to the mounting base (4). An exhaust pipe (5) is fixed on the outside of the mounting base (4). Nozzles (6) are evenly installed on the exhaust pipe (5). Anti-clogging components are provided on the nozzles (6). The stirring rod (21) is a hollow structure. An air pump (74) is fixed on the upper mounting plate (1). A connecting pipe (73) is installed between the air pump (74) and the shaft.

2. The agitator of the sludge aerobic fermentation device according to claim 1, characterized in that: A fixed sleeve (7) is rotatably connected to the stirring shaft (2). An annular groove (72) is provided on the inner side wall of the fixed sleeve (7). An air inlet (22) is provided on the stirring shaft (2) and aligned with the annular groove (72). The bottom of the stirring shaft (2) is an open structure.

3. The agitator of the sludge aerobic fermentation device according to claim 2, characterized in that: A fixing post (71) is fixed between the upper end of the fixing sleeve (7) and the upper mounting plate (1), and the end of the connecting pipe (73) is fixed on the fixing sleeve (7).

4. The agitator of the sludge aerobic fermentation device according to claim 1, characterized in that: The anti-blocking component includes a base pipe (61) and a lifting sleeve (62). The base pipe (61) is fixed on the exhaust pipe (5). The lifting sleeve (62) is slidably connected to the outer side of the upper end of the base pipe (61). A connection hole (63) is provided on the side wall of the lifting sleeve (62).

5. The agitator of the sludge aerobic fermentation device according to claim 4, characterized in that: The base tube (61) is fixed with a mounting base (64), and a guide rod (65) is fixed at the upper end of the mounting base (64). The upper end of the guide rod (65) passes through the lifting sleeve (62) and is slidably connected with the lifting sleeve (62). A limit plate (66) is fixed at the upper end of the guide rod (65).

6. The agitator of the sludge aerobic fermentation device according to claim 5, characterized in that: The bottom of the mounting base (64) is tapered, and a connecting spring (67) is fixed between the mounting base (64) and the inner wall of the lifting sleeve (62).

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