Stirring device
By incorporating a stirring and pushing component and a driven stirring component into the stirring device, and utilizing blades with different pitches and an inverted triangular arrangement, the problems of low stirring efficiency and uneven mixing in existing devices are solved, achieving rapid and uniform mixing and efficient slag discharge.
Patent Information
- Application Number
- CN202422780733.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The existing stirring device has low stirring efficiency and uneven mixing, resulting in slow fermentation speed.
The system employs a stirring and pushing component and a driven stirring component. The transmission component drives the first and second blades to rotate. The first blade is used for mixing, and the second blade is used for turning the material. The difference in pitch design makes the material contact more uniform, forming an inverted triangular arrangement to reduce the mixing dead angle and improve the slag discharge efficiency.
This method enables rapid stirring and uniform mixing of materials, improves fermentation efficiency, and increases slag removal efficiency.
Smart Images
Figure CN223439612U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of stirring equipment, and specifically relates to a stirring device. BACKGROUND
[0002] Implementing the green development concept and promoting the construction of beautiful China are important goals of the overall construction of a socialist modernized country. As an environmentally friendly sanitary facility, the design and use of green toilets fully reflect the requirements of the green development concept. Green toilets have been widely promoted in more and more regions, especially in some scenic spots and rural areas. Green toilets usually use water-saving or water-free flushing methods and treat excreta through microbial fermentation degradation technology. The process of decomposing organic matter into stable substances such as humus by microorganisms not only reduces the volume and odor of excreta, but also converts them into valuable organic fertilizers. For example, excreta after microbial fermentation are rich in nutrients and organic matter required by plants, and are high-quality organic fertilizers. Biogas produced by anaerobic fermentation is a clean energy source that can be used for power generation, lighting, and fuel. In the fermentation process, stirring is usually required to ensure uniform mixing of microorganisms and excreta and improve the efficiency of microbial degradation. Therefore, green treatment of excreta is considered from the aspects of environmental protection, resource recycling, public health, social and economic benefits, and sustainable development, aiming to contribute to the sustainable development of mankind.
[0003] In the existing patent CN110451751A, a constant-temperature fermentation tank suitable for feces mixing treatment is disclosed. The stirring device is arranged in the stirring bin. The stirring device includes a stirring shaft, a connecting shaft, stirring blades, and auxiliary blades. The stirring blades are in a continuous spiral ring structure and are fixed to the stirring shaft through the connecting shaft. The auxiliary blades are evenly distributed on the stirring blades. The stirring is performed by rotating the stirring blades and auxiliary blades driven by a driving motor. In this device, the stirring blades are in a spiral shape, and additional auxiliary blades are arranged on the stirring blades to enhance the stirring effect. However, the stirring efficiency and quality are not high enough, and the fermentation efficiency cannot be improved.
[0004] Based on the above-mentioned problems of the existing patent, it is necessary to study a stirring device with higher stirring efficiency and more uniform mixing. INVENTION CONTENTS
[0005] The utility model provides a kind of stirring device, it is proposed to solve the technical problems that the existing device stirring efficiency is low, mixing is not enough uniform and leads to fermentation speed slow.
[0006] To solve the above-mentioned technical problems, the technical scheme adopted by the present application is as follows:
[0007] A kind of stirring device, including stirring push assembly and at least one driven stirring assembly,
[0008] A transmission component is provided between the stirring and pushing component and the driven stirring component.
[0009] The stirring and pushing assembly includes a main rotating shaft and a first blade, the first blade is arranged on the main rotating shaft, the driven stirring assembly includes a driven rotating shaft and a second blade, the second blade is arranged on the driven rotating shaft, and the transmission assembly is respectively connected to the main rotating shaft and the driven rotating shaft.
[0010] The first blade and the second blade are spiral blades, and the pitch of the second blade is greater than the pitch of the first blade.
[0011] The first blade and the second blade are driven by the transmission component to rotate and stir.
[0012] In the present invention, a stirring and pushing component and a driven stirring component are provided, the stirring and pushing component and the driven stirring component are driven to rotate by the transmission component, and the mixed material is stirred by the mutual cooperation of the first blade and the second blade, so that the material and the microorganisms are quickly and evenly mixed, thereby improving the effect of subsequent fermentation.
[0013] In the present invention, it should be noted that the first blade mainly plays a mixing and stirring role, and the second blade mainly plays a role in turning the material. In the present invention, the pitch of the second blade is greater than the pitch of the first blade. The larger pitch enables the second blade to increase the contact area with the material, and can push more material to move, scraping the material at the bottom to a higher place, so that it falls to the first blade for stirring and pushing, promoting more effective mixing of the material and microorganisms, making the contact between the material and microorganisms more uniform, and the fermentation effect better. Therefore, the cooperation of the first blade and the second blade makes the material mixing more uniform. In addition, the first blade will also participate in the discharge of waste residue after subsequent fermentation. Therefore, the pitch of the first blade is smaller than the pitch of the second blade. The smaller pitch is convenient for the subsequent pushing of waste residue and improves the pushing efficiency.
[0014] Furthermore, the driven stirring assembly includes a first driven stirring assembly and a second driven stirring assembly, and the first driven stirring assembly and the second driven stirring assembly are respectively arranged on both sides of the stirring and pushing assembly, and the first driven assembly and the second driven assembly are respectively connected to the stirring and pushing assembly through the transmission assembly.
[0015] It should be noted that the first driven stirring assembly and the second driven stirring assembly are arranged to further improve the stirring efficiency and the mixing uniformity, in the actual stirring process, the second blades of the first driven stirring assembly and the second driven stirring assembly make the material fully turn over from both sides to the middle, and the material in the middle moves forward and backward and is stirred under the rotation of the first blade of the stirring pushing assembly, so that the circulation is formed; and in the subsequent residue discharging process, the waste residue is pushed through the first blade of the stirring pushing assembly and discharged.
[0016] Further, the driven shafts of the first driven stirring assembly and the second driven stirring assembly are located above the main shaft, and the driven shafts of the first driven stirring assembly and the second driven stirring assembly are located on the same water surface.
[0017] After the technical scheme is adopted, the two driven shafts and the main shaft form an inverted triangle, and it should be noted that in the utility model, the heights of the first blade and the second blade partially overlap, on the one hand, this arrangement effectively reduces the stirring dead angle and improves the stirring quality: the first driven stirring assembly and the second driven stirring assembly will contact most of the material, scrape the material to a high place and fall into the first blade, and make the material be stirred and mixed at the first blade, and since there is a gap between the first driven stirring assembly and the second driven stirring assembly, the material in the gap may not be well stirred and mixed, therefore, the material at this position can be divided to the second blade under the rotation of the first blade, and is scraped to a high place in cooperation with the second blade, and then falls back to the first blade, so that the overall rapid stirring and mixing is realized; on the other hand, this arrangement can also improve the residue discharging efficiency when discharging the residue: under the action of the second blade, the waste residue will be gathered to the first blade at the middle part, so that the first blade discharges the residue and the residue discharging efficiency is improved.
[0018] Further, the first blade comprises a hollow section and a solid section, the pitch of the hollow section is greater than the pitch of the solid section, and the hollow section is close to the transmission assembly.
[0019] After the technical scheme is adopted, it should be noted that the pitch of the hollow section is greater than the pitch of the solid section, therefore, the hollow section and the solid section constitute a variable-pitch helical blade structure of the first blade, and the material can reach the forward and backward movement mixing of the material through the hollow structure of the hollow section in the stirring process, the solid section with a short pitch mainly plays a role in increasing the extrusion force and the thrust force, and the discharging efficiency is increased.
[0020] In addition, it should be noted that in the process of discharging the residue and pushing the material by the first blade, the transmission assembly drives the main shaft to keep rotating in one direction all the time, and the material pushed through the hollow section to the solid section can only keep a forward extrusion state and be discharged quickly.
[0021] Further, the second blade is a fixed-pitch helical blade, and the pitch of the second blade is greater than the pitch of the hollow section.
[0022] By adopting the technical scheme, it should be noted that the greater pitch helps to increase the contact area with the material during the rotation of the second blade, so that more material is scraped upward and falls on the first blade, and the stirring is realized through the first blade, thereby improving the stirring efficiency and uniformity.
[0023] Preferably, the two second blades are symmetrically connected to the driven shaft, so as to further improve the stirring efficiency and mixing uniformity.
[0024] Further, the main shaft is provided with a plurality of first connecting pieces, the hollow section is connected with the first connecting pieces, and the solid section is connected with the outer wall of the main shaft.
[0025] By adopting the technical scheme, it should be noted that the hollow section is connected with the main shaft through the first connecting pieces, which is for forming a hollow on the first blade, so that the material can move left and right along the hollow section under the action of the first blade for sufficient mixing, and on the other hand, the hollow section reduces the weight of the first blade and reduces the manufacturing cost; and the solid section needs to have a larger contact area with the material and needs to have greater structural strength, so the solid section is directly connected with the side wall of the main shaft, and the connection mode can be welding, bonding or the like.
[0026] The driven shaft is provided with a plurality of second connecting pieces, and the second blades are connected with the second connecting pieces.
[0027] By adopting the technical scheme, it should be noted that the weight of the driven stirring assembly is reduced, so the connection mode is consistent with the connection mode of the hollow section and the main shaft, and in the utility model, the first connecting pieces and the second connecting pieces are fixedly connected with the first blades and the second blades respectively, the spacing between the two first connecting pieces is adapted to the pitch between the hollow section and the solid section, the spacing between the adjacent second connecting pieces is consistent with the spacing between the second blades, and in the utility model, the first connecting pieces and the second connecting pieces can be connecting rods, screws or the like.
[0028] Further, the transmission assembly comprises a driving motor, an output end of the driving motor is connected with the main shaft, one end of the main shaft is connected with a main sprocket, one end of the driven shaft of the first driven stirring assembly is connected with a first driven sprocket, one end of the driven shaft of the second driven stirring assembly is connected with a second driven sprocket, and the main sprocket, the first driven sprocket and the second driven sprocket are meshed with a chain.
[0029] According to the technical scheme, it is to be explained that, in the utility model, the main sprocket is a single-row sprocket, the first driven sprocket and the second driven sprocket are double-row sprockets and a single-row sprocket respectively, the main sprocket and the first driven sprocket are connected through a chain, and the first driven sprocket and the second driven sprocket are also connected through a chain, therefore, the transmission process of the device is: the driving motor drives the main shaft and the main sprocket to rotate, the rotation of the main sprocket drives the first driven sprocket to rotate through the chain, the rotation of the first driven sprocket drives the driven shaft of the first driven stirring assembly to rotate, the first driven sprocket drives the second driven sprocket to rotate through the chain, and the rotation of the second driven sprocket drives the driven shaft of the second driven stirring assembly to rotate, so that the stirring and pushing assembly, the first driven stirring assembly and the second driven stirring assembly are cooperatively stirred and mixed.
[0030] Further, the stirring and pushing assembly, the first driven stirring assembly and the second driven stirring assembly are arranged in the fermentation bin, and the bottom of the fermentation bin is sequentially provided with a first stirring groove, a stirring and pushing groove and a second stirring groove which can cooperate with the first driven stirring assembly, the stirring and pushing assembly and the second driven stirring assembly.
[0031] According to the technical scheme, it is to be explained that, in the utility model, the main sprocket is a single-row sprocket, the first driven sprocket and the second driven sprocket are double-row sprockets and a single-row sprocket respectively, the main sprocket and the first driven sprocket are connected through a chain, and the first driven sprocket and the second driven sprocket are also connected through a chain, therefore, the transmission process of the device is: the driving motor drives the main shaft and the main sprocket to rotate, the rotation of the main sprocket drives the first driven sprocket to rotate through the chain, the rotation of the first driven sprocket drives the driven shaft of the first driven stirring assembly to rotate, the first driven sprocket drives the second driven sprocket to rotate through the chain, and the rotation of the second driven sprocket drives the driven shaft of the second driven stirring assembly to rotate, so that the stirring and pushing assembly, the first driven stirring assembly and the second driven stirring assembly are cooperatively stirred and mixed.
[0032] The stirring and pushing groove is arranged, on the one hand, to facilitate the first blade to stir the material scraped by the second blade, and on the other hand, to push out the waste slag under the action of the stirring and pushing groove in cooperation with the first blade.
[0033] In summary, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:
[0034] 1. The stirring device provided by the utility model realizes rapid stirring of the material and uniform mixing through the cooperation of the stirring and pushing assembly and the driven stirring assembly.
[0035] 2. The stirring device provided by the utility model is provided with the large-pitch blade of the second blade, so that the contact area of the second blade with the material is increased, more material can be moved, more material can be scraped upwards and dropped onto the first blade, the mixing of the material and the microorganism is more effective, the contact between the material and the microorganism is more uniform, and the fermentation effect is better.
[0036] 3. The utility model provides a kind of stirring device, by setting driven shaft and the main shaft forms inverted triangle, on the one hand, this arrangement effectively reduces the stirring dead angle, improves the stirring quality;On the other hand, this arrangement can also improve the deslagging efficiency when deslagging.
[0037] 4. The utility model provides a kind of stirring device, by setting hollow section and solid section, hollow section and solid section constitute the variable pitch helical blade structure of first blade, material can reach the front and rear movement mixing of material by the hollow structure of hollow section when stirring, the solid section of short pitch mainly increases extrusion force and thrust effect, increases discharging efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0038] The utility model will be explained by example and with reference to the drawings, wherein:
[0039] Figure 1 It is overall structure schematic diagram of the utility model;
[0040] Figure 2 It is stirring push assembly structure schematic diagram of the utility model;
[0041] Figure 3 It is first driven stirring assembly or second stirring driven assembly structure schematic diagram of the utility model;
[0042] Figure 4 It is the utility model Figure 1 A-A direction section view of the utility model.
[0043] Reference signs:
[0044] 1-stirring push assembly, 101-main shaft, 102-first blade, 1021-hollow section, 1022-solid section, 103-first connecting piece, 2-first driven stirring assembly, 201-driven shaft, 202-second blade, 203-second connecting piece, 3-second driven stirring assembly, 4-driving motor, 5-fermentation bin, 6-first stirring tank, 7-stirring advancing tank, 8-second stirring tank, 9-main sprocket, 10-first driven sprocket, 11-second driven sprocket. DETAILED DESCRIPTION
[0045] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0046] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0047] The embodiments of the present application will be described below in conjunction with Figures 1-4 The utility model will be described in detail.
[0048] Embodiment 1
[0049] A stirring device, comprising a stirring and pushing assembly 1 and at least one driven stirring assembly,
[0050] A transmission assembly is arranged between the stirring and pushing assembly 1 and the driven stirring assembly,
[0051] The stirring and pushing assembly 1 comprises a main rotating shaft 101 and a first blade 102, the first blade 102 is arranged on the main rotating shaft 101, the driven stirring assembly comprises a driven rotating shaft 201 and a second blade 202, the second blade 202 is arranged on the driven rotating shaft 201, and the transmission assembly is connected with the main rotating shaft 101 and the driven rotating shaft 201 respectively,
[0052] The first blade 102 and the second blade 202 are helical blades, and the pitch of the second blade 202 is greater than the pitch of the first blade 102,
[0053] The first blade 102 and the second blade 202 rotate and stir under the driving of the transmission assembly.
[0054] The driven stirring assembly comprises a first driven stirring assembly 2 and a second driven stirring assembly 3, which are respectively arranged at two sides of the stirring and pushing assembly 1, and the first driven stirring assembly 2 and the second driven stirring assembly 3 are connected with the stirring and pushing assembly 1 through the transmission assembly.
[0055] The transmission assembly comprises a driving motor 4, the output end of which is connected with the main rotating shaft 101, one end of the main rotating shaft 101 is connected with a main sprocket 9, one end of the driven rotating shaft 201 of the first driven stirring assembly 2 is connected with a first driven sprocket 10, one end of the driven rotating shaft 201 of the second driven stirring assembly 3 is connected with a second driven sprocket 11, and the main sprocket 9, the first driven sprocket 10 and the second driven sprocket 11 are meshed with a chain.
[0056] The stirring and pushing assembly 1, the first driven stirring assembly 2 and the second driven stirring assembly 3 are arranged in a fermentation bin 5, and the bottom of the fermentation bin 5 is sequentially provided with a first stirring groove 6, a stirring and pushing groove 7 and a second stirring groove 8, which can be matched with the first driven stirring assembly 2, the stirring and pushing assembly 1 and the second driven stirring assembly 3.
[0057] In the embodiment, the side walls of the first stirring groove 6 and the second stirring groove 8 inevitably have residual materials, therefore, through the large-pitch helical blade structure of the second blade 202, the contact area with the materials is increased, the mixing efficiency is improved, the residual materials on the side walls of the stirring grooves are scraped off, and the residual materials on the side walls of the first stirring groove and the second stirring groove 8 are reduced.
[0058] The stirring and pushing groove 7 is arranged, on one hand, to facilitate the first blade 102 to stir the materials scraped off by the second blade 202, and on the other hand, to push out the waste residues under the action of the stirring and pushing groove 7 in cooperation with the first blade 102.
[0059] In the embodiment, the driving motor 4 drives the main rotating shaft 101, the driven rotating shaft 201 of the first driven stirring assembly 2 and the driven rotating shaft 201 of the second driven stirring assembly 3 to rotate, under the action of the second blade 202, the materials are pushed from the bottom of the fermentation bin 5 to a high position, fall into the stirring and pushing assembly 1 and the stirring and pushing groove 7 from the gap between the first driven stirring assembly 2 and the second driven stirring assembly 3, and the stirring and mixing of the materials are realized through the cooperation of the first blade 102 and the second blade 202.
[0060] Embodiment 2
[0061] The difference between the embodiment and embodiment 1 is that the driven rotating shafts 201 of the first driven stirring assembly 2 and the second driven stirring assembly 3 are both above the main rotating shaft 101, and the driven rotating shafts 201 of the first driven stirring assembly 2 and the second driven stirring assembly 3 are on the same water surface.
[0062] In the embodiment, the two driven rotating shafts 201 and the main rotating shaft 101 form an inverted triangle, and it is to be noted that the height of the first blade 102 partially overlaps the height of the second blade 202. On the one hand, this arrangement effectively reduces the stirring dead angle and improves the stirring quality: the first driven stirring assembly 2 and the second driven stirring assembly 3 will contact most of the materials, scrape the materials to a high place, and make the materials fall into the first blade 102 for stirring and mixing. However, the materials in the gap between the first driven stirring assembly 2 and the second driven stirring assembly 3 may not be well stirred and mixed, so the materials at this position can be guided to the second blade 202 under the rotation of the first blade 102, scraped to a high place in cooperation with the second blade 202, and then fall back to the first blade 102, realizing overall rapid stirring and mixing. On the other hand, this arrangement can also improve the efficiency of slag discharge: under the action of the second blade 202, the waste slag will gather to the first blade 102 at the middle part, facilitating the first blade 102 to discharge the slag and improving the efficiency of slag discharge.
[0063] Embodiment 3
[0064] The difference between the embodiment and embodiment 2 is that the first blade 102 includes a hollow section 1021 and a solid section 1022, the pitch of the hollow section 1021 is greater than the pitch of the solid section 1022, and the hollow section 1021 is close to the transmission assembly.
[0065] In the embodiment, the pitch of the hollow section 1021 is greater than the pitch of the solid section 1022, so the hollow section 1021 and the solid section 1022 constitute a variable-pitch helical blade structure of the first blade 102. During stirring, the materials can pass through the hollow structure of the hollow section 1021 to realize forward and backward movement mixing. The solid section 1022 with a short pitch mainly increases the extrusion force and thrust to increase the discharging efficiency.
[0066] In addition, during the process of discharging slag and pushing materials by the first blade 102, the transmission assembly drives the main rotating shaft 101 to rotate in one direction all the time, and the materials pushed through the hollow section 1021 to the solid section 1022 can only maintain a forward extrusion state for fast discharging.
[0067] Embodiment 4
[0068] The difference between the embodiment and embodiment 3 is that the second blade 202 is a fixed pitch helical blade, and the pitch of the second blade 202 is greater than the pitch of the hollow section 1021.
[0069] In the embodiment, the larger pitch helps to increase the contact area with the material during rotation, and more material is scraped up and falls onto the first blade 102, and the stirring is realized through the first blade 102, thereby improving the stirring efficiency and uniformity.
[0070] Embodiment 5
[0071] The difference between the embodiment and embodiment 4 is that two second blades 202 are symmetrically connected to the driven shaft 201, so as to further improve the stirring efficiency and mixing uniformity.
[0072] Embodiment 6
[0073] The difference between the embodiment and embodiment 5 is that a plurality of first connecting pieces 103 are arranged on the main shaft 101, the hollow section 1021 is connected with the first connecting piece 103, and the solid section 1022 is connected with the outer wall of the main shaft 101.
[0074] Working principle of the utility model:
[0075] Transmission: the driving motor 4 drives the main shaft 101 and the main sprocket 9 to rotate, the main sprocket 9 drives the first driven sprocket 10 to rotate through the chain, the first driven sprocket 10 drives the driven shaft 201 of the first driven stirring assembly 2 to rotate, the first driven sprocket 10 drives the second driven sprocket 11 to rotate through the chain, and the rotation of the second driven sprocket 11 drives the driven shaft 201 of the second driven stirring assembly 3 to rotate, so that the first blade 102 and the second blade 202 rotate.
[0076] Stirring: firstly, under the structure of the large pitch of the second blade 202, the contact area between the blade and the material is increased, the material is pushed from the bottom of the fermentation bin 5 to a high place, falls to the stirring and pushing assembly 1 and the stirring and pushing groove 7 through the gap between the first driven stirring assembly 2 and the second driven stirring assembly 3, and meanwhile, the material can be mixed through the front and back movement of the first blade 102 and the hollow section, so as to realize the effect of sufficient stirring and mixing in up and down and left and right directions.
[0077] Pushing: when discharging, the second blades 202 of the first driven stirring assembly 2 and the second driven stirring assembly 3 turn the materials on both sides to the middle, the main shaft 101 drives the first blade 102 to rotate in a positive direction, and the material can be squeezed to the discharge port through the helical structure, the long pitch of the hollow section 1021 mainly plays a pushing effect, and the pitch of the solid section 1022 enhances the extrusion force and the pushing force, so that the automatic discharging is faster.
[0078] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A stirring device, characterized in that: It comprises a stirring and pushing component (1) and at least one driven stirring component, A transmission component is provided between the stirring and pushing component (1) and the driven stirring component. The stirring and pushing assembly (1) comprises a main rotating shaft (101) and a first blade (102), wherein the first blade (102) is arranged on the main rotating shaft (101); the driven stirring assembly comprises a driven rotating shaft (201) and a second blade (202), wherein the second blade (202) is arranged on the driven rotating shaft (201); and the transmission assembly is connected to the main rotating shaft (101) and the driven rotating shaft (201), respectively. The first blade (102) and the second blade (202) are spiral blades, and the pitch of the second blade (202) is greater than the pitch of the first blade (102). The first blade (102) and the second blade (202) are driven by the transmission component to rotate and stir.
2. A stirring device according to claim 1, characterized in that: The driven stirring assembly comprises a first driven stirring assembly (2) and a second driven stirring assembly (3), the first driven stirring assembly (2) and the second driven stirring assembly (3) being respectively arranged on both sides of the stirring and pushing assembly (1), and the first driven stirring assembly (2) and the second driven stirring assembly (3) being respectively connected to the stirring and pushing assembly (1) via the transmission assembly.
3. A stirring device according to claim 2, characterized in that: The driven rotating shaft (201) of the first driven stirring assembly (2) and the driven rotating shaft (201) of the second driven stirring assembly (3) are both located above the main rotating shaft (101), and the driven rotating shaft (201) of the first driven stirring assembly (2) and the driven rotating shaft (201) of the second driven stirring assembly (3) are located on the same water surface.
4. A stirring device according to any one of claims 1 to 3, characterized in that: The first blade (102) comprises a hollow section (1021) and a solid section (1022), the pitch of the hollow section (1021) is greater than the pitch of the solid section (1022), and the hollow section (1021) is close to the transmission assembly.
5. A stirring device according to claim 4, characterized in that: The second blade (202) is a fixed-pitch spiral blade, and the pitch of the second blade (202) is greater than the pitch of the hollow section (1021).
6. A stirring device according to any one of claims 1 to 3, characterized in that: The driven rotating shaft (201) is symmetrically connected to two second blades (202).
7. A stirring device according to claim 4, characterized in that: A plurality of first connecting members (103) are provided on the main rotating shaft (101), the hollow section (1021) is connected to the first connecting member (103), and the solid section (1022) is connected to the outer wall of the main rotating shaft (101).
8. A stirring device according to any one of claims 1 to 3, characterized in that: A plurality of second connecting members (203) are provided on the driven rotating shaft (201), and the second blades (202) are connected to the second connecting members (203).
9. A stirring device according to claim 2, characterized in that: The transmission assembly comprises a driving motor (4), the output end of the driving motor (4) is connected to the main rotating shaft (101), one end of the main rotating shaft (101) is connected to a main sprocket (9), one end of the driven rotating shaft (201) of the first driven stirring assembly (2) is connected to a first driven sprocket (10), one end of the driven rotating shaft (201) of the second driven stirring assembly (3) is connected to a second driven sprocket (11), and chains are meshed on the main sprocket (9), the first driven sprocket (10) and the second driven sprocket (11).