Sludge double-shaft stirring blade angle positioning device

Abstract

A sludge double-shaft stirring blade angle positioning device comprises a stirring shaft which is provided with a plurality of through holes; the stirring blade is fixed on the stirring shaft through a threaded connecting rod; one end of the threaded connecting rod is fixedly connected with the stirring blade, and the other end extends into the through hole of the stirring shaft; the positioning sheet I is fixedly connected to one side, close to the stirring shaft, of the stirring blade; and the locking mechanism is used for fixing the threaded connecting rod on the stirring shaft. The stirring device disclosed by the utility model is compact and reasonable in structure and convenient to operate, and not only improves the stability and uniformity in the stirring process, but also enhances the firmness of the stirring blades and the working strength of the stirring shaft by additionally arranging the positioning sheet I and adopting a flexible locking mechanism design. Meanwhile, the maintenance frequency is reduced, the sludge stirring efficiency is improved, and the angles of the stirring blades can be flexibly adjusted to adapt to different materials.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring equipment, in particular to a sludge double-axis stirring blade angle positioning device. Background Art

[0002] my country boasts a well-developed water system, with numerous rivers, lakes, and reservoirs. The dredging industry has experienced rapid growth over the past decade or two. Statistics show that the total annual dredging volume for my country's three major regional economies alone approaches 4 billion cubic meters, ranking first globally. Sintered ceramsite is primarily made from non-renewable resources such as clay and shale, sintered at temperatures exceeding 1000°C. This sintering process consumes significant energy and produces significant amounts of waste gas and dust. Therefore, the search for a viable, sinter-free technology for producing ceramsite is urgent. The primary chemical composition of river and lake silt is very similar to that of clay, offering the potential for silt to replace clay in the production of ceramsite.

[0003] Practice has proved that dehydrating and drying river and lake silt is an effective way to reduce endogenous pollution. The dry soil is then mixed with solidifying materials to make unfired expanded clay, realizing the resource utilization of sludge.

[0004] Currently, the primary method for producing ceramsite from silt, both domestically and internationally, is high-temperature sintering, a complex, energy-intensive, and highly polluting process. During the production of unfired ceramsite, the solidified sludge cake and additives are conveyed and dispersed through a twin-shaft mixer. Typically, the mixing blades are connected to the agitator shaft via threaded connecting rods. However, due to the high viscosity of the silt during mixing, the blades experience excessive stirring resistance, causing the bolted blades to shift in angle during mixing. In severe cases, the blades can become perpendicular to the agitator shaft, affecting the uniformity of mixing between the silt and the solidified material, and consequently, the strength and other characteristics of the unfired ceramsite.

[0005] To this end, we propose a sludge dual-axis stirring blade angle positioning device. Utility Model Content

[0006] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a sludge dual-axis stirring blade angle positioning device. By adding a positioning piece and adopting a flexible locking mechanism design, it not only improves the stability and uniformity of the stirring process, but also enhances the firmness of the stirring blades and the working strength of the stirring shaft.

[0007] The technical solutions adopted in this utility model are as follows:

[0008] A sludge biaxial stirring blade angle positioning device, characterized by comprising:

[0009] A stirring shaft having a plurality of through holes arranged radially at different angles;

[0010] The stirring blade is fixed to the stirring shaft through a threaded connecting rod and is used to stir the material;

[0011] A threaded connecting rod, one end of which is fixedly connected to the stirring blade, and the other end of which extends into the through hole of the stirring shaft to achieve a detachable connection between the stirring blade and the stirring shaft;

[0012] Positioning piece 1, fixedly connected to the side of the stirring blade close to the stirring shaft, used to increase the connection area and strength between the stirring blade and the stirring shaft;

[0013] The locking mechanism is used to fix the threaded connecting rod on the stirring shaft to achieve a stable connection of the stirring blade.

[0014] Furthermore, it is characterized in that the stirring shaft can adopt a solid or hollow structure to adapt to materials of different strengths.

[0015] Furthermore, it is characterized in that the stirring blades are fixedly connected to the threaded connecting rod by welding to ensure stability during the stirring process.

[0016] Furthermore, it is characterized in that the outer diameter of the positioning piece 1 is the same as that of the stirring shaft.

[0017] Furthermore, it is characterized in that the locking mechanism includes a positioning plate 2, a circular hole is opened on the positioning plate 2, a rotating ring is rotatably connected to the inner wall of the circular hole, and the rotating ring is provided with an internal thread corresponding to the threaded connecting rod, and the threaded connecting rod and the rotating ring are fixedly connected by threaded engagement.

[0018] Furthermore, it is characterized in that the rotating ring is at the same height as the second positioning piece, and the rotating ring can be covered by the second positioning piece in the circular hole to prevent the rotating ring from coming into contact with the material and becoming loose.

[0019] Furthermore, it is characterized in that a hexagonal groove is provided on the outer wall of the rotating ring, which is convenient for rotating the rotating ring by using a tool to achieve a tight connection between the threaded connecting rod and the rotating ring.

[0020] Furthermore, it is characterized in that the locking mechanism is a nut.

[0021] The beneficial effects of the utility model are as follows:

[0022] This utility model features a compact, rational structure and easy operation. The addition of a positioning plate and a flexible locking mechanism not only improve the stability and uniformity of the mixing process, but also enhance the firmness of the mixing blades and the working strength of the mixing shaft. Furthermore, this device reduces maintenance and improves sludge mixing efficiency, while also allowing for flexible adjustment of the mixing blade angle to accommodate different materials. These benefits enhance the performance and practicality of the entire sludge mixing equipment, providing strong technical support for sludge resource utilization and ceramsite production.

[0023] At the same time, the utility model also has the following advantages:

[0024] (1) Improve the stability and uniformity of the stirring process: By adding a positioning piece to the stirring blade, the utility model can effectively avoid the deviation of the blade angle during the stirring process. This design ensures the stable connection of the stirring blade to the stirring shaft. Even when the sludge viscosity is high and the stirring resistance is large, the blade angle can be kept unchanged, thereby improving the stability and uniformity of the stirring process and ensuring the full mixing of the sludge and the solidified material.

[0025] (2) Enhance the firmness of the mixing blades and the working strength of the mixing shaft: The positioning piece is designed in the shape of an arc, which can wrap around the mixing shaft and is welded to the mixing blade via a threaded connecting rod. This design not only improves the firmness of the mixing blades, but also avoids the adverse effects of direct welding to the mixing shaft on their working strength. In this way, the sludge mixing operation can be operated more stably and reliably, improving the durability of the overall equipment.

[0026] (3) Reduce maintenance and improve sludge mixing efficiency: After installing the stirring blade positioning piece, the stability of the blade and the uniformity of the stirring process are improved, thus reducing the number of maintenance caused by loose or falling blades. This not only reduces maintenance costs, but also greatly improves the efficiency of sludge mixing, making the entire production process smoother and more efficient.

[0027] (4) Flexible adjustment of the stirring blade angle to suit different materials: The utility model also has the function of adjusting the stirring blade angle according to the material strength. The multiple through holes at different angles opened on the stirring shaft allow the user to select the appropriate stirring blade angle according to actual needs, thereby achieving the best stirring effect for different materials. This flexibility increases the applicability and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the present utility model.

[0029] Figure 2 It is a structural diagram of an embodiment of the present utility model.

[0030] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0031] Figure 4 This is a schematic diagram of the connection state of the stirring blade, positioning piece 1, threaded connecting rod and locking mechanism in the present invention.

[0032] in:

[0033] 100, stirring shaft; 200, stirring blade; 300, threaded connecting rod; 400, positioning piece 1; 500, locking mechanism;

[0034] 501. Positioning piece 2; 502. Rotating ring; 503. Sink. DETAILED DESCRIPTION

[0035] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0036] Example 1:

[0037] like Figure 1 As shown, this embodiment discloses a sludge dual-axis stirring blade angle positioning device, whose structure includes a stirring shaft 100, a stirring blade 200, a threaded connecting rod 300, a positioning piece 400 and a locking mechanism 500. Through a quick connection method, it can not only realize the stirring function so that the sludge and the solidified material are mixed evenly, but also can adjust the stirring blade 200 to different angles according to different materials. At the same time, the stirring blade 200 can also be quickly replaced after being worn, ultimately ensuring the quality of the finished ceramsite product and production efficiency.

[0038] Specifically, such as Figure 1 As shown, the stirring shaft 100 in this embodiment is provided with a plurality of through holes arranged radially at different angles; the stirring shaft 100 can adopt a solid or hollow structure and can be adjusted according to the strength of the material.

[0039] The stirring blade 200 in this embodiment is fixedly welded to the threaded connecting rod 300, and the stirring blade 200 is fixed to the through hole opened on the stirring shaft 100 through the threaded connecting rod 300, and the threaded connecting rod 300 extends to one end of the through hole and is fixed by the locking mechanism 500.

[0040] In this embodiment, a positioning piece 400 is fixedly connected to the side of the stirring blade 200 close to the stirring shaft 100. The positioning piece 400 has the same outer diameter as the stirring shaft 100. After the stirring blade 200 is fixed to the stirring shaft 100, the positioning piece 400 fits perfectly onto the stirring shaft 100, thereby increasing the connection area between the stirring blade 200 and the stirring shaft 100, thereby preventing the stirring blade 200 from bending and improving the strength of the stirring blade 200.

[0041] The specific installation method is as follows: first, the stirring blade 200 on the stirring shaft 100 is positioned by the positioning mark for angle and position, and then all the stirring blades 200 are removed; in order to make the positioning piece fit the surface of the stirring shaft 100, prepare several iron rings with the same inner diameter as the inner diameter of the stirring shaft 100, cut them in half, open a hole in the middle position, pass the threaded connecting rod 300 through it, and weld it to the stirring blade 200; then pass the threaded connecting rod 300 through the original socket of the stirring shaft 100, after the semicircular positioning piece 400 fits the surface of the stirring shaft 100, adjust the angle of the stirring blade 200 to be consistent with that before disassembly, and fix the threaded connecting rod 300 to the stirring shaft 100 through the locking mechanism 500. The locking mechanism 500 in this embodiment is a nut, and the use of a nut realizes the functions of quick locking and quick disassembly.

[0042] Example 2:

[0043] like Figure 2-Figure 4 As shown, the difference between this embodiment and embodiment 1 is that the locking mechanism 500 in this embodiment includes a second positioning piece 501, a circular hole is provided on the second positioning piece 501, and a rotating ring 502 is rotatably connected to the inner wall of the circular hole, and an internal thread corresponding to the threaded connecting rod 300 is provided on the rotating ring 502, and the connection between the two is achieved by the engagement of the threads. The second positioning piece 501 is at the same height as the rotating ring 502, and the rotating ring 502 can be covered in the circular hole. At the same time, in order to facilitate the rotation of the rotating ring 502 by a tool, a hexagonal groove 503 is provided on the outer wall of the rotating ring 502, thereby realizing the rotation of the rotating ring 502, connecting the rotating ring 502 to the threaded connecting rod 300, and achieving locking.

[0044] Compared with the locking mechanism in Example 1, the locking mechanism in this embodiment is more complex in structure and more expensive, but has better stability because the locking is performed by a nut in Example 1, and the nut is in the form of an external hexagon. At this time, as the nut and the material come into contact, the nut is easily loosened, which in turn causes the stirring blade to fall off. In this embodiment, by covering the rotating ring 502 in the circular hole, the loosening of the contact between the rotating ring and the material is avoided, thereby improving the overall stability. At the same time, the positioning piece 2 501 will also be attached to the stirring shaft 100 due to the engagement of the rotating ring 502 with the threaded connecting rod 300, thereby improving the strength of the stirring shaft 100. After the through hole is opened on the stirring shaft 100, its strength will certainly be reduced, so it is further improved by the positioning piece 1 400 and the positioning piece 2 501.

[0045] In summary, the present invention has the following beneficial effects.

[0046] (1) By adding a positioning piece 400 to the stirring blade 200, the blade angle deviation during the stirring process can be avoided, thereby improving the stability and uniformity of the stirring process;

[0047] (2) The positioning piece 400 is made into an arc-shaped piece that can wrap around the stirring shaft 100. After passing through the threaded connecting rod 300, it is welded and fixed to the stirring blade 200. This can not only improve the firmness of the stirring blade 200, but also avoid directly welding it to the stirring shaft 100 and affecting its working strength, so that the sludge mixing operation is stable and reliable.

[0048] (3) Installing a 400mm stirring blade positioning piece can reduce the number of maintenance personnel and greatly improve the sludge mixing efficiency.

[0049] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. A sludge biaxial stirring blade angle positioning device, characterized in that: include: A stirring shaft having a plurality of through holes arranged radially at different angles; The stirring blade is fixed to the stirring shaft through a threaded connecting rod and is used to stir the material; A threaded connecting rod, one end of which is fixedly connected to the stirring blade, and the other end of which extends into the through hole of the stirring shaft to achieve a detachable connection between the stirring blade and the stirring shaft; Positioning piece 1, fixedly connected to the side of the stirring blade close to the stirring shaft, used to increase the connection area and strength between the stirring blade and the stirring shaft; The locking mechanism is used to fix the threaded connecting rod on the stirring shaft to achieve a stable connection of the stirring blade.

2. A sludge biaxial stirring blade angle positioning device according to claim 1, characterized in that: The stirring shaft can adopt a solid or hollow structure to adapt to materials of different strengths.

3. A sludge biaxial stirring blade angle positioning device according to claim 1, characterized in that: The stirring blades are fixedly connected to the threaded connecting rod by welding to ensure stability during the stirring process.

4. A sludge biaxial stirring blade angle positioning device according to claim 1, characterized in that: The first positioning piece has the same outer diameter as the stirring shaft.

5. A sludge biaxial stirring blade angle positioning device according to claim 1, characterized in that: The locking mechanism includes a second positioning piece, which is provided with a circular hole. A rotating ring is rotatably connected to the inner wall of the circular hole. The rotating ring is provided with an internal thread corresponding to the threaded connecting rod. The threaded connecting rod and the rotating ring are fixedly connected by threaded engagement.

6. A sludge biaxial stirring blade angle positioning device according to claim 5, characterized in that: The rotating ring is at the same height as the second positioning piece, and the rotating ring can be covered by the second positioning piece in the circular hole to prevent the rotating ring from coming into contact with the material and becoming loose.

7. A sludge biaxial stirring blade angle positioning device according to claim 5, characterized in that: The outer wall of the rotating ring is provided with a hexagonal recessed groove, which is convenient for rotating the rotating ring by using a tool to achieve a tight connection between the threaded connecting rod and the rotating ring.

8. The sludge biaxial stirring blade angle positioning device according to claim 1, characterized in that: The locking mechanism is a nut.

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