Multifunctional stirring device for integrated composting

Abstract

The utility model provides a multifunctional stirring device for integrated composting, which comprises a rotating shaft (100), a plurality of blade shafts (200) are uniformly arranged on the periphery of the rotating shaft (100) in an extending manner, and blades (300) are fixedly arranged on the radial outer edges of the extending ends of the blade shafts (200); the impeller is characterized in that the blades (300) comprise turning blades (301) and propelling blades (302) which are fixed to the two sides of the blade shaft (200) respectively, and the turning blades (301) and the propelling blades (302) are arranged to be in different shapes; through the arrangement of the turning blades and the propelling blades, materials in the composting bin can be turned through the turning blades when the motor with the output end fixedly connected with the rotating shaft rotates forwards, and the materials in the composting bin can be propelled through the propelling blades when the motor rotates backwards, so that the dual effects of turning and propelling the materials in the composting bin are achieved through the single stirring shaft.

Description

A multi-functional mixing device for integrated composting Technical Field

[0001] This utility model relates to the technical field of organic solid waste treatment and environmental protection machinery, specifically to a multi-functional mixing device for integrated composting. Background Technology

[0002] With the increasing amount of food waste, its proper disposal is directly related to food safety and public health. Simultaneously, with the rapid development of urban wastewater treatment in my country, the amount of sludge produced is increasing daily. Current technologies often employ a co-treatment method for food waste and wastewater sludge. This method not only stably treats food waste and domestic sludge, rendering them harmless and reducing their volume, but also produces usable biogas and horticultural biochar, effectively turning waste into valuable resources.

[0003] Kitchen waste refers to organic waste generated during daily food processing and consumption, mainly including vegetable and fruit scraps, leftover food, fruit peels, eggshells, and spoiled food. Because it contains a large amount of water and abundant organic matter, kitchen waste is prone to rotting, spoilage, and foul odors if left untreated, thus breeding bacteria, flies, and other pests and polluting the environment. However, through resource utilization, kitchen waste can be transformed into valuable resources, producing organic fertilizer, animal feed, and fuel, which is of great significance for environmental protection and sustainable economic development. Therefore, how to conveniently and efficiently dispose of kitchen waste has always been a matter of widespread concern.

[0004] Food waste is a highly efficient resource. With proper treatment, it can be transformed from waste into valuable resources, contributing significantly to the development of a circular economy, improving the environmental hygiene of the catering industry and public canteens, and ultimately building an environmentally friendly and resource-saving society. Compared to other treatment methods, decentralized integrated food waste treatment technology has significant advantages. These advantages include: firstly, excellent volume reduction, with the total amount of waste reduced by over 90% after treatment, greatly lowering transportation and storage costs; secondly, high resource utilization rate, with fermentation products used to make organic fertilizer; and thirdly, thorough harmless treatment, without secondary pollution, high degree of automation, and good safety.

[0005] In decentralized integrated processing of kitchen waste, the narrow space of the composting bin and the lack of suitable high-efficiency mixing blades in the existing technology often lead to problems such as material accumulation, caking, difficulty in discharging, and poor air permeability inside the composting bin.

[0006] Therefore, there is an urgent need to provide a multi-functional mixing device for integrated machine composting to solve the defects and shortcomings of the existing technology. Summary of the Invention

[0007] In order to address the defects and shortcomings of existing technologies, this utility model provides a multifunctional mixing device for integrated composting.

[0008] The technical solution provided by this utility model is as follows:

[0009] A multifunctional mixing device for integrated composting includes a rotating shaft, with a plurality of blade shafts evenly extended from the outer periphery of the rotating shaft, and blades fixedly disposed on the radial outer edge of the extended end of the blade shafts; characterized in that: the blades include a turning blade and a propulsion blade respectively fixed on both sides of the blade shaft, and the turning blade and the propulsion blade are configured with different shapes.

[0010] As a further preferred embodiment of the present invention, the blade shafts are distributed at equal angular intervals on the outer circumferential direction of the rotating shaft.

[0011] As a further preferred embodiment of the present invention, the blade shafts are evenly spaced along the axial direction of the rotating shaft.

[0012] As a further preferred embodiment of the present invention, the throwing blade and the propulsion blade have the same extension dimension in the axial direction of the rotating shaft.

[0013] As a further preferred embodiment of the present invention, the throwing blade and the propulsion blade have the same extension dimension in the axial direction of the blade shaft to which they are fixedly connected.

[0014] As a further preferred embodiment of the present invention, the distance between the throwing blade and the axis of the blade shaft to which it is fixedly connected is less than the distance between the propulsion blade and the axis of the blade shaft to which it is fixedly connected.

[0015] As a further preferred embodiment of the present invention, the tumbling blade includes a tumbling side surface and a tumbling bottom surface that are perpendicular to each other. The tumbling side surface is fixedly connected to the blade shaft, and a concave tumbling arc surface is provided between the tumbling side surface and the tumbling bottom surface.

[0016] As a further preferred embodiment of the present invention, the propulsion blade includes a propulsion bottom surface, and a propulsion side surface and a propulsion back surface are fixed on the top two sides of the propulsion bottom surface, respectively. The propulsion side surface is fixedly connected to the blade shaft and perpendicular to the propulsion back surface. A propulsion front surface and a propulsion top surface are respectively provided on the front side and top of the propulsion back surface.

[0017] As a further preferred embodiment of the present invention, a fixing ring is also fixedly sleeved on the outer periphery of the blade shaft, and fixing parts are respectively provided on both sides of the fixing ring corresponding to the positions of the throwing blade and the propulsion blade.

[0018] As a further preferred embodiment of the present invention, a positioning element is threaded onto the outer edge of the extended end of the blade shaft, and the outer diameter of the positioning element is greater than the distance between the throwing blade and the propulsion blade fixed on both sides of the same blade shaft.

[0019] The beneficial effects of this utility model compared to the prior art include:

[0020] 1) This utility model provides a multi-functional mixing device for integrated composting. By fixing a turning blade and a propulsion blade on both sides of the radial outer edge of the blade shaft extension end, and setting the turning blade and the propulsion blade to different shapes, the motor fixedly connected to the output end and the rotating shaft can turn the material inside the compost bin through the turning blade when rotating forward, and can propel the material inside the compost bin through the propulsion blade when the motor rotates in reverse. Thus, the dual function of turning and propulsion of the material inside the compost bin is achieved through a single mixing shaft.

[0021] 2) This utility model provides a multi-functional mixing device for integrated composting. By setting the turning blades to include mutually perpendicular turning sides and turning bottoms, and setting an inwardly concave turning arc surface between the turning sides and the turning bottoms, the turning blades can turn the material after contacting it, without changing the position of the material in the compost bin. The turning arc surface can also achieve good flexible contact with the material.

[0022] 3) This utility model provides a multi-functional mixing device for integrated composting. By setting the propulsion blade to include a propulsion bottom surface, a propulsion side surface and a propulsion back surface fixed on the top two sides of the propulsion bottom surface, and a propulsion front surface and a propulsion top surface set on the front side and top of the propulsion back surface, the material is propelled forward by the inclined force provided by the inclined propulsion front surface and the propulsion top surface under the drive of the motor. At the same time, two propulsion blades can be processed from a cube, so as to save the raw materials for the blade manufacturing while propelling the material. Attached Figure Description

[0023] Figure 1 is a three-dimensional structural view of the stirring device provided by this utility model.

[0024] Figure 2 is a side view of the structure of the stirring device provided by this utility model.

[0025] Figure 3 is a top view of the stirring device provided by this utility model.

[0026] Figure 4 is an enlarged view of the structure of the stirring device blades provided by this utility model.

[0027] The markings in this utility model are explained as follows:

[0028] 100-shaft;

[0029] 200-blade shaft;

[0030] 300-blade;

[0031] 301-Surging blade; 3011-Surging side surface; 3012-Surging bottom surface; 3013-Surging curved surface;

[0032] 302-Propeller blade; 3021-Propeller side surface; 3022-Propeller bottom surface; 3023-Propeller back surface; 3024-Propeller front surface; 3025-Propeller top surface;

[0033] 400 - Retaining ring; 401 - Fixing part;

[0034] 500 - Positioning component. Detailed Implementation

[0035] 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.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral 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 a connection within 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.

[0038] [First Embodiment]

[0039] Figures 1-4 show a multifunctional mixing device for integrated composting provided in the first embodiment of this utility model. As shown in Figure 1, it includes a rotating shaft 100, with a plurality of blade shafts 200 evenly extended from the outer periphery of the rotating shaft 100. Blades 300 are fixedly arranged on the radial outer edge of the extended end of the blade shafts 200. The output end of the motor is fixedly connected to the rotating shaft 100, so that the rotating shaft 100 is driven to rotate by the output power of the motor, and the blades on the radial outer edge of the extended end of the blade shafts 200 and the blades on the radial outer edge of the extended end of the blade shafts 200 are driven to rotate synchronously. The motor in this embodiment is a bidirectional drive motor to meet the multiple functions of rotating the shaft forward to turn and throw materials and rotating it backward to propel materials.

[0040] As shown in Figure 2, the blade shafts 200 are distributed at equal angular intervals on the outer circumferential direction of the rotating shaft 100 to achieve a uniform stirring process on the outer circumferential direction of the rotating shaft 100. Multiple sets of blade shafts 200 can be set on the outer circumferential direction of the rotating shaft 100 according to actual stirring requirements. In this embodiment, three sets of blade shafts 200 are set on the outer circumferential direction of the rotating shaft 100. Correspondingly, the included angle between two adjacent sets of blade shafts 200 is 120°.

[0041] As shown in Figure 3, the blade shafts 200 are evenly spaced along the axial direction of the rotating shaft 100 to ensure a uniform stirring process along the axial extension direction of the rotating shaft 100. Multiple sets of blade shafts 200 can be evenly spaced along the axial direction of the rotating shaft 100 to meet different stirring requirements.

[0042] The improvement of this embodiment compared with the prior art is that: the blade 300 includes a tumbling blade 301 and a propulsion blade 302 respectively fixed on both sides of the blade shaft 200, and the tumbling blade 301 and the propulsion blade 302 are set with different shapes. This setting allows the motor, which is fixedly connected to the output end of the rotating shaft 100, to tumble the material inside the compost bin through the tumbling blade 301 when rotating forward, and to propel the material inside the compost bin through the propulsion blade 302 when the motor rotates in reverse. Thus, the dual function of tumbling and propulsion of the material inside the compost bin is achieved through a single stirring shaft.

[0043] As shown in Figure 2, the extension dimensions L1 of the tumbling blade 301 and the propulsion blade 302 in the axial direction of the blade shaft 200 to which they are fixedly connected are equal; as shown in Figure 3, the extension dimensions L2 of the tumbling blade 301 and the propulsion blade 302 in the axial direction of the rotating shaft 100 are equal, so as to achieve uniform stirring and facilitate the processing and shaping of the tumbling blade 301 and the propulsion blade 302.

[0044] As shown in Figure 2, the distance L3 between the turning blade 301 and the axis of the blade shaft 200 to which it is fixedly connected is less than the distance L4 between the pushing blade 302 and the axis of the blade shaft 200 to which it is fixedly connected. This is because the functions required for turning and pushing are different. When turning, there is an aeration device at the bottom of the compost bin, so it is not necessary to scrape to the bottom. However, when pushing, all the material needs to be pushed away, so it needs to scrape deeper than the turning blade. Therefore, the pushing blade 302 needs to be set to be longer than the turning blade 301.

[0045] As shown in Figure 4, the turning blade 301 in this embodiment includes a turning side surface 3011 and a turning bottom surface 3012 that are perpendicular to each other. The turning side surface 3011 is used to fix it to the blade shaft 200. A concave turning arc surface 3013 is provided between the turning side surface 3011 and the turning bottom surface 3012, so that the turning blade turns the material after contacting it, without changing the position of the material in the compost bin. The turning arc surface can also achieve good flexible contact with the material.

[0046] As shown in Figure 4, the propulsion blade 302 includes a propulsion bottom surface 3022. The top two sides of the propulsion bottom surface 3022 are respectively fixed with a propulsion side surface 3021 and a propulsion back surface 3023. The propulsion side surface 3021 is fixedly connected to the blade shaft 200 and is perpendicular to the propulsion back surface 3023. The front side and top side of the propulsion back surface 3023 are respectively provided with a propulsion front surface 3024 and a propulsion top surface 3025. Under the drive of the motor, the material is propelled forward by the inclined force provided by the inclined propulsion front surface and the propulsion top surface. At the same time, two propulsion blades can be processed from a cube, so as to save the raw materials for blade manufacturing while propelling the material.

[0047] As shown in Figure 4, a fixing ring 400 is also fixedly sleeved on the outer periphery of the blade shaft 200. A fixing member can pass through the fixing hole (not shown) opened inside the fixing ring 400 and enter the blade shaft 200 to achieve a fixed connection of the fixing ring 400 on the outer periphery of the blade shaft 200. Fixing parts 401 are respectively provided on both sides of the fixing ring 400 at the positions corresponding to the throwing blade 301 and the propulsion blade 302. The fixing parts 401 support and fix the throwing blade 301 and the propulsion blade 302 on both sides. The throwing blade 301 and the propulsion blade 302 can be fixedly connected to the fixing parts 401 by fixing members such as bolts or screws, so as to facilitate the loading, unloading, cleaning and maintenance of the throwing blade 301 and the propulsion blade 302 in the later stage.

[0048] As shown in Figure 4, a positioning element 500 is threaded on the outer edge of the extended end of the blade shaft 200, and the outer diameter of the positioning element 500 is larger than the distance between the tumbling blade 301 and the propulsion blade 302 fixed on both sides of the same blade shaft 200. Thus, the positioning element 500 achieves axial positioning of the fixing ring 400, the tumbling blade 301 and the propulsion blade 302 on the outside of the blade shaft. The positioning element 500 can be a nut or other commonly used in the mechanical field.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multifunctional mixing device for integrated composting, comprising a rotating shaft (100), wherein a plurality of blade shafts (200) are uniformly extended from the outer periphery of the rotating shaft (100), and blades (300) are fixedly disposed on the radial outer edge of the extended end of the blade shafts (200); characterized in that: The blade (300) includes a tumbling blade (301) and a propulsion blade (302) respectively fixed on both sides of the blade shaft (200), and the tumbling blade (301) and the propulsion blade (302) are configured with different shapes.

2. The multifunctional mixing device for integrated composting according to claim 1, characterized in that: The blade shafts (200) are distributed at equal angular intervals on the outer circumferential direction of the rotating shaft (100).

3. The multifunctional mixing device for integrated composting according to claim 1, characterized in that: The blade shafts (200) are evenly spaced along the axial direction of the rotating shaft (100).

4. A multifunctional mixing device for integrated composting according to claim 1, characterized in that: The throwing blade (301) and the propulsion blade (302) have the same extension dimension in the axial direction of the rotating shaft (100).

5. A multifunctional mixing device for integrated composting according to claim 1, characterized in that: The throwing blades (301) and the propulsion blades (302) have the same axial extension dimension in the blade shaft (200) to which they are fixedly connected.

6. A multifunctional mixing device for integrated composting according to claim 1, characterized in that: The distance between the turning blade (301) and the axis of the blade shaft (200) to which it is fixedly connected is less than the distance between the propulsion blade (302) and the axis of the blade shaft (200) to which it is fixedly connected.

7. A multifunctional mixing device for integrated composting according to claim 1, characterized in that: The tumbling blade (301) includes a tumbling side surface (3011) and a tumbling bottom surface (3012) that are perpendicular to each other. The tumbling side surface (3011) is fixedly connected to the blade shaft (200). A concave tumbling arc surface (3013) is provided between the tumbling side surface (3011) and the tumbling bottom surface (3012).

8. A multifunctional mixing device for integrated composting according to claim 1, characterized in that: The propulsion blade (302) includes a propulsion bottom surface (3022), and a propulsion side surface (3021) and a propulsion back surface (3023) are fixed on the top two sides of the propulsion bottom surface (3022), respectively. The propulsion side surface (3021) is fixedly connected to the blade shaft (200) and perpendicular to the propulsion back surface (3023). A propulsion front surface (3024) and a propulsion top surface (3025) are respectively provided on the front side and top of the propulsion back surface (3023).

9. A multifunctional mixing device for integrated composting according to claim 1, characterized in that: A fixing ring (400) is also fixedly sleeved on the outer periphery of the blade shaft (200), and fixing parts (401) are respectively provided on both sides of the fixing ring (400) corresponding to the positions of the throwing blade (301) and the propulsion blade (302).

10. A multifunctional mixing device for integrated composting according to claim 1, characterized in that: The outer edge of the extended end of the blade shaft (200) is threaded with a positioning element (500), and the outer diameter of the positioning element (500) is greater than the distance between the throwing blade (301) and the propulsion blade (302) fixed on both sides of the same blade shaft (200).

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