A paddle mixer that is easy to maintain

Abstract

This utility model belongs to the field of biogas production technology and provides a paddle mixer that is easy to maintain. It includes a stirring shaft, stirring blades, a sealed cover, and a drive mechanism. The stirring shaft is rotatably mounted on a cover plate and located inside the tank wall. A through hole is provided in the tank wall, and one end of the stirring shaft extends through the through hole to the outside of the tank wall. The stirring blades are mounted on the side wall of the stirring shaft, and a window is provided on the cover plate, with the stirring blades located at the window. The sealed cover is detachably mounted on the window. The drive mechanism is located on the tank wall and is used to drive the stirring shaft to rotate. This paddle mixer has a window on the cover plate, with the stirring blades located at the window. The working status of the mixer can be observed through the window. When maintenance is needed, the stirring blades can be inspected and cleaned by opening the sealed cover, facilitating the removal of any entangled materials from the stirring blades. This equipment has a simple structure, is easy to install and maintain, and allows for timely observation of the fermentation process within the reactor and prompt action.

Description

Technical Field

[0001] This utility model belongs to the field of biogas production technology, specifically relating to a paddle mixer that is easy to maintain. Background Technology

[0002] The mixer is a core component of the biogas production process. It is used to thoroughly mix the organic waste (such as livestock and poultry manure, crop straw, etc.) in the reactor to ensure that the microorganisms and organic matter are in full contact, accelerate the decomposition rate, and thus increase methane production.

[0003] Existing agitators are large and installed directly inside the reactor. During use, fermentation materials often become entangled on the impeller blades, affecting the normal operation of the agitator drive. Removing the entangled material requires opening the reactor cover and entering the interior to remove the sediment, often requiring large lifting equipment, which is difficult, time-consuming, and labor-intensive. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a paddle mixer that is easy to maintain and can solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a paddle mixer that is easy to maintain, comprising a stirring shaft, stirring blades, a sealing cover, and a drive mechanism; The stirring shaft is rotatably mounted on the cover plate. The stirring shaft is located inside the pool wall. The pool wall has a through hole, and one end of the stirring shaft extends through the through hole to the outside of the pool wall. The stirring blades are disposed on the side wall of the stirring shaft, and the cover plate has a window, with the stirring blades located at the window. The detachable enclosure is installed on the window. The drive mechanism is mounted on the pool wall and is used to drive the stirring shaft to rotate.

[0006] Preferably, the stirring shaft sidewall is provided with two sets of stirring blades.

[0007] Preferably, the two sets of stirring blades are fixedly connected by a support rod.

[0008] Preferably, a base is bolted to the side wall of the stirring shaft, and the stirring blades are fixed to the base.

[0009] Preferably, an inner support frame is provided on the inner sidewall of the window, and the stirring shaft is rotatably mounted on the inner support frame.

[0010] Preferably, the pool wall is provided with an external support frame, and the drive mechanism is mounted on the external support frame.

[0011] Preferably, the outer support frame is equipped with a torque lock.

[0012] Preferably, the power output end of the drive mechanism is fixed coaxially with the stirring shaft.

[0013] Preferably, the driving mechanism is a motor, and a speed reducer is provided between the power output end of the driving mechanism and the stirring shaft.

[0014] Preferably, the enclosure is a transparent enclosure.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a paddle mixer that is easy to maintain. A window is provided on the cover plate, and the mixing blades are located at the window. The operating status of the mixer can be observed through the window. When maintenance is needed, the mixing blades can be inspected and cleaned by opening the sealed cover, facilitating the removal of any entangled materials. This equipment has a simple structure, is easy to install and maintain, and allows for timely observation of the fermentation process within the reactor and prompt action.

[0016] 2. This utility model provides a paddle mixer that is easy to maintain. The mixing blades and the mixing shaft are connected by bolts, making disassembly and installation convenient. The mixing blades can be removed without opening the entire cover and draining the reactor tank, reducing maintenance difficulty and cost, and shortening maintenance time. It ensures long-term stable fermentation, improves production efficiency, reduces material residence time, lowers production costs, and is energy-saving and environmentally friendly. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a paddle mixer that is easy to maintain, provided for an embodiment of this utility model; Figure 2 A three-dimensional structural diagram of the window and related parts of a paddle mixer that is easy to maintain, provided for an embodiment of this utility model; Figure 3 A three-dimensional structural diagram of the stirring shaft and related parts of a paddle mixer that is easy to maintain, provided for an embodiment of this utility model; Figure 4 A three-dimensional structural diagram of the base and related parts of a paddle mixer that is easy to maintain, provided for an embodiment of this utility model; Figure 5 A three-dimensional structural diagram of the internal support frame of a paddle mixer that is easy to maintain, provided for an embodiment of this utility model; Figure 6 This is a three-dimensional structural diagram of the external support frame and related parts of a paddle mixer that is easy to maintain, provided for an embodiment of this utility model.

[0018] The attached diagram lists the components represented by each number as follows: 1. Stirring shaft; 100. Inner connecting rod; 101. Inner mounting plate; 102. Inner mounting hole; 103. Inner strip hole; 104. Inner rotating hole; 2. Agitator blades; 3. Enclosed enclosure; 4. Drive mechanism; 5. Cover plate; 6. Window; 7. Pool wall; 8. Support rod; 9. Base; 10. Internal support frame; 11. External support frame; 110. External connecting rod; 111. External mounting plate; 112. External strip hole; 12. Torque lock; 13. Gear reducer. Detailed Implementation

[0019] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0020] This embodiment provides a paddle mixer that is easy to maintain, including a stirring shaft 1, stirring blades 2, a sealing cover 3, and a drive mechanism 4.

[0021] The stirring shaft 1 is rotatably mounted on the cover plate 5. The stirring shaft 1 is located inside the pool wall 7. The pool wall 7 is provided with a through hole. One end of the stirring shaft 1 passes through the through hole and extends to the outside of the pool wall 7. For example, see Figure 2 The reactor includes a tank wall 7 and a cover plate 5 with an opening at the top of the tank wall 7. A stirring shaft 1 is rotatably mounted below the cover plate 5 via an inner support frame 10, so that the stirring shaft 1 is horizontally positioned and located inside the tank wall 7. A through hole is provided in the tank wall 7, and one end of the stirring shaft 1 extends through the through hole to the outside of the tank wall 7.

[0022] The stirring blade 2 is set on the side wall of the stirring shaft 1, and the cover plate 5 has a window 6, with the stirring blade 2 located at the window 6. For example, see Figure 2-3 The stirring blade 2 is installed on the side wall of the stirring shaft 1, and the stirring blade 2 is located inside the tank wall 7. The cover plate 5 has a window 6, which is aligned with the stirring blade 2.

[0023] The removable enclosure 3 is mounted on the window 6; For example, see Figure 1 The sealing cover 3 covers the entire window 6, and the sealing cover 3 is detachably connected to the cover plate 5. The sealing cover 3 and the cover plate 5 can be connected by bolts, clips, or magnetic attachment. A sealing gasket can be provided between the sealing cover 3 and the cover plate 5 to improve sealing performance.

[0024] The drive mechanism 4 is installed on the pool wall 7 and is used to drive the stirring shaft 1 to rotate.

[0025] For example, see Figure 1-2 The drive mechanism 4 is installed on the outside of the pool wall 7 via the outer support frame 11. The power output end of the drive mechanism 4 is coaxially fixed with the stirring shaft 1, and the stirring shaft 1 can be driven to rotate through the drive mechanism 4.

[0026] Based on the above structure, the paddle mixer provided in this embodiment has a window 6 on the cover plate 5, and the stirring blade 2 is located at the window 6. The working status of the mixer can be observed in a timely manner through the window 6. When maintenance is required, the stirring blade 2 can be inspected and cleaned by opening the closed cover 3, facilitating the removal of any entangled material from the stirring blade 2. This equipment has a simple structure, is easy to install and maintain, and allows for timely observation of the fermentation process within the reactor and prompt action.

[0027] The enclosure 3 has an arched structure, allowing the stirring blades 2 to extend through the window 6 into the enclosure 3 above the cover plate 5 during rotation. Specifically, the distance between the stirring shaft 1 and the cover plate 5 is less than the length of the stirring blades 2, enabling them to extend through the window 6 into the cover plate 5 when rotating to a certain angle. For example, when the stirring blades 2 are in a vertical position, their tips can extend through the window 6 into the enclosure 3 above the cover plate 5. This allows workers to observe whether the stirring blades 2 are rotating normally from the cover plate 5 without needing to enter the window 6. Alternatively, the enclosure 3 can be transparent, allowing direct observation of the stirring blades 2's operation from the outside without opening it.

[0028] Based on the above technical solution, in the technical solution provided in this embodiment, two sets of stirring blades 2 are provided on the side wall of the stirring shaft 1; The two sets of stirring blades 2 are fixedly connected by support rods 8; For example, see Figure 3-4Two sets of stirring blades 2 are provided on the side wall of the stirring shaft 1. Each set of stirring blades 2 includes two single blades, which are arranged symmetrically. The first single blade of the first set of stirring blades 2 is fixedly connected to the two single blades of the second set of stirring blades 2 by a support rod 8. At the same time, the second single blade of the first set of stirring blades 2 is fixedly connected to the two single blades of the second set of stirring blades 2 by a support rod 8. This can improve the integrity and stability of the two sets of stirring blades 2.

[0029] In the technical solution provided in this embodiment, a base 9 is installed on the side wall of the stirring shaft 1 by bolts, and the stirring blade 2 is fixed to the base 9; For example, see Figure 4 A base 9 is fixed to one end of the single blade near the stirring shaft 1. The base 9 has a fixing hole, and the side wall of the stirring shaft 1 has a screw hole. A locking screw passes through the fixing hole of the base 9 and is screwed into the screw hole of the stirring shaft 1, thus fixing the base 9 to the side wall of the stirring shaft 1, and consequently fixing the single blade to the side wall of the stirring shaft 1. That is, the single blade can be fixed to the stirring shaft 1 with bolts, and the stirring blade 2 can be fixed to the stirring shaft 1 with bolts. Furthermore, a reinforcing plate is also fixed to the base 9. The reinforcing plate has reinforcing holes. In the same group of stirring blades 2, the reinforcing plates of two single blades are attached together. These two reinforcing plates can be connected with bolts, thereby improving the stability and integrity of the two single blades in the same group of stirring blades 2.

[0030] The stirring blades 2 and the stirring shaft 1 are connected by bolts, which facilitates disassembly and installation. The stirring blades 2 can be removed without opening the entire cover plate and draining the water from the reactor pool, which reduces the difficulty and cost of maintenance and shortens the maintenance time. It ensures long-term stable fermentation, improves production efficiency, reduces material residence time, reduces production costs, and is energy-saving and environmentally friendly.

[0031] In the technical solution provided in this embodiment, an inner support frame 10 is provided on the inner sidewall of the window 6, and the stirring shaft 1 is rotatably mounted on the inner support frame 10. For example, see Figure 2 , Figure 5 The inner support frame 10 includes an inner connecting rod 100 and an inner mounting plate 101. The inner connecting rod 100 is fixed to the inner side wall of the window 6 by bolts. The inner connecting rod 100 has an inner mounting hole 102 on its side wall, and the inner mounting plate 101 has an inner strip hole 103 on its side wall. The inner mounting plate 101 can be locked and fixed to the inner connecting rod 100 by bolts passing through the inner strip hole 103 and screwing them into the inner mounting hole 102. The inner mounting plate 101 has an inner rotation hole 104, and the stirring shaft 1 is rotatably mounted inside the inner rotation hole 104 via bearings.

[0032] The inner connecting rod 100 has multiple internal mounting holes 102 evenly spaced vertically on its side wall. By aligning the inner strip hole 103 with different internal mounting holes 102, the height position of the inner mounting plate 101 can be adjusted.

[0033] Secondly, the inner strip-shaped hole 103 is vertically positioned, allowing for fine-tuning of the height of the inner mounting plate 101. This avoids the situation where the stirring shaft 1 cannot be precisely aligned with the through hole in the tank wall 7 during installation, thus preventing the need for disassembly and reinstallation or drilling, and effectively improving installation accuracy.

[0034] In the technical solution provided in this embodiment, an outer support frame 11 is provided on the pool wall 7, and a drive mechanism 4 is provided on the outer support frame 11.

[0035] For example, see Figure 1 , Figure 6 The outer support frame 11 includes an outer connecting rod 110 and an outer mounting plate 111. The outer connecting rod 110 is fixed to the outside of the pool wall 7 by bolts. The outer connecting rod 110 has an outer mounting hole on its side wall, and the outer mounting plate 111 has an outer strip hole 112 on its side wall. The outer mounting plate 111 can be locked and fixed to the outer connecting rod 110 by bolts passing through the outer strip hole 112 and screwing them into the outer mounting hole. The outer mounting plate 111 has an outer rotation hole, and the stirring shaft 1 is rotatably mounted inside the outer rotation hole via a bearing.

[0036] The outer connecting rod 110 has multiple external mounting holes evenly spaced vertically on its side wall. By aligning the outer strip hole 112 with different external mounting holes, the height position of the outer mounting plate 111 can be adjusted.

[0037] Secondly, the outer strip hole 112 is vertically positioned, allowing for fine-tuning of the height of the outer mounting plate 111. This avoids the situation where the stirring shaft 1 cannot be precisely aligned with the through hole in the tank wall 7 during installation, requiring disassembly and reinstallation or drilling, thus effectively improving installation accuracy.

[0038] Furthermore, a torque lock 12 is provided on the outer support frame 11. The torque lock 12 can reduce the torque resistance of the entire stirring shaft, thus extending the service life of the stirrer. It can also prevent the stirring shaft 1 from rotating arbitrarily when not in use.

[0039] The drive mechanism 4 can be a motor, and a reducer 13 is provided between the power output end of the drive mechanism 4 and the stirring shaft 1. The reducer 13 can effectively control the speed of the stirring shaft 1 and prevent the instantaneous speed of the stirring shaft 1 from being too fast.

[0040] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0043] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A paddle mixer that is easy to maintain, characterized in that, Includes a stirring shaft (1), stirring blades (2), a closed cover (3), and a drive mechanism (4); The stirring shaft (1) is rotatably mounted on the cover plate (5). The stirring shaft (1) is located inside the pool wall (7). The pool wall (7) has a through hole. One end of the stirring shaft (1) passes through the through hole and extends to the outside of the pool wall (7). The stirring blade (2) is disposed on the side wall of the stirring shaft (1), and a window (6) is provided on the cover plate (5), with the stirring blade (2) located at the window (6); The enclosure (3) is detachably mounted on the window (6); The drive mechanism (4) is disposed on the pool wall (7) and is used to drive the stirring shaft (1) to rotate.

2. The paddle mixer for easy maintenance according to claim 1, characterized in that, Two sets of stirring blades (2) are provided on the side wall of the stirring shaft (1).

3. A paddle mixer for easy maintenance according to claim 2, characterized in that, The two sets of stirring blades (2) are fixedly connected by a support rod (8).

4. The paddle mixer for easy maintenance according to claim 1, characterized in that, A base (9) is bolted to the side wall of the stirring shaft (1), and the stirring blade (2) is fixed to the base (9).

5. A paddle mixer for easy maintenance according to claim 1, characterized in that, An inner support frame (10) is provided on the inner wall of the window (6), and the stirring shaft (1) is rotatably mounted on the inner support frame (10).

6. A paddle mixer for easy maintenance according to claim 1, characterized in that, An outer support frame (11) is provided on the pool wall (7), and the driving mechanism (4) is provided on the outer support frame (11).

7. A paddle mixer for easy maintenance according to claim 6, characterized in that, The outer support frame (11) is equipped with a torque lock (12).

8. A paddle mixer for easy maintenance according to claim 1, characterized in that, The power output end of the drive mechanism (4) is fixed coaxially with the stirring shaft (1).

9. A paddle mixer for easy maintenance according to claim 8, characterized in that, The drive mechanism (4) is a motor, and a reducer (13) is provided between the power output end of the drive mechanism (4) and the stirring shaft (1).

10. A paddle mixer for easy maintenance according to claim 1, characterized in that, The enclosure (3) is a transparent enclosure.

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