Wear-resistant blade of double-shaft stirrer

Abstract

The utility model relates to the technical field of double-shaft stirrers, in particular to a wear-resistant blade of a double-shaft stirrer, which comprises two rotating shafts rotatably mounted in a stirring bin of the double-shaft stirrer, each rotating shaft is provided with a plurality of blade units, and the blade units are spirally distributed along the shaft surfaces of the rotating shafts; each blade unit comprises a convex lug detachably installed on the rotating shaft, and the convex lug is sleeved with a blade lining. The wear-resistant blade of the double-shaft stirrer is provided with the blade units with detachable structures, the blade bushings are detachably mounted on the lugs in the blade units, and the blade bushings can serve as protective structures to protect the inner lugs from being abraded; the single blade lining or the blade unit can be conveniently and specifically replaced when abrasion occurs in the later period, disassembly and assembly are easy and fast, and the maintenance cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of double-shaft stirrers, in particular to wear-resistant blades of double-shaft stirrers. Background Art

[0002] The double-shaft agitator utilizes the synchronous rotation of two symmetrical spiral shafts to add water and stir while conveying dry ash and other powdered materials, thereby evenly humidifying the dry ash and powdered materials, so as to achieve the purpose of preventing the humidified materials from emitting dry ash and leaking water droplets, thereby facilitating the loading and transportation of the humidified ash or transferring it to other conveying equipment. It is suitable for humidifying and loading fly ash or similar materials in thermal power plants, mines and other industries.

[0003] At present, the main component of the twin-shaft agitator is the blade structure. It is found during use that the blades are greatly worn during stirring, resulting in a significant decrease in the uniformity of subsequent stirring and work efficiency. In addition, the blades fixed on the spiral shaft are inconvenient to repair after wear and the maintenance cycle is long. Generally, the entire agitator needs to be replaced, resulting in a high cost of use. Therefore, it is considered how to further improve the wear resistance of the twin-shaft agitator and enable the unit blade to be repaired and replaced after wear to reduce the maintenance cost. In view of this, we propose wear-resistant blades for twin-shaft agitators. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies mentioned in the above background technology and provide wear-resistant blades for a double-shaft agitator.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The wear-resistant blade of the double-shaft agitator comprises two rotating shafts rotatably mounted in a mixing chamber of the double-shaft agitator, wherein a plurality of blade units are arranged on the rotating shafts, and the plurality of blade units are distributed in a spiral shape along the axial surface of the rotating shafts;

[0007] The blade unit comprises a lug which is detachably mounted on the rotating shaft, and a blade bushing is sleeved on the lug.

[0008] Preferably, a panel is fixedly connected below the lug, and a first mounting hole is provided on the panel;

[0009] The rotating shaft is provided with an embedding groove for inserting the embedding plate, and the embedding groove is provided with a first threaded hole corresponding to the position of the first mounting hole;

[0010] A second screw is installed at the first mounting hole and the first threaded hole.

[0011] Preferably, the outer surface of the panel is in an arc-shaped structure, and the arc-shaped structure is used to maintain a continuous arc-shaped fit with the axial surface of the rotating shaft.

[0012] Preferably, a second mounting hole is provided on the lug, and a second threaded hole corresponding to the second mounting hole is provided on the blade bushing, and a first screw is installed at the second mounting hole and the second threaded hole.

[0013] Preferably, the outer surface of the blade bushing is provided with a polyurethane wear-resistant layer.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The wear-resistant blades of the dual-axis agitator are provided with a detachable blade unit. The lugs in the blade unit are detachably provided with blade bushings, which can serve as a protective structure to protect the internal lugs from wear. This facilitates targeted replacement of a single blade bushing or blade unit when wear occurs at a later stage, and the disassembly and assembly are simple and quick, which helps to reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the installation of an embodiment of the utility model;

[0018] Figure 2 This is one of the overall structural diagrams of the utility model;

[0019] Figure 3 This is the second schematic diagram of the overall structure of the utility model;

[0020] Figure 4 This is an exploded view of the overall structure of the utility model;

[0021] Figure 5 This is an exploded view of the blade unit of the utility model.

[0022] The meaning of each number in the figure is:

[0023] 1. Mixing chamber of a double-shaft agitator; 2. Rotating shaft; 21. Groove; 211. First threaded hole; 3. Blade unit; 31. Panel; 311. First mounting hole; 32. Lug; 321. Second mounting hole; 33. Blade bushing; 331. Second threaded hole; 34. First screw; 35. Second screw. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model describes the above technical solution in detail through the following embodiments:

[0026] The wear-resistant blade of the double-shaft agitator comprises two rotating shafts 2 rotatably mounted in a mixing chamber 1 of the double-shaft agitator, such as Figure 1 As shown in the schematic diagram, in this embodiment, a blade unit 3 is provided on the rotating shaft 2, and the blade unit 3 is distributed in a spiral along the axial surface of the rotating shaft 2, so that the powder can be transported forward during the rotating and stirring process.

[0027] like Figure 2-Figure 5 In the structure shown, the blade unit 3 includes a lug 32 detachably mounted on the rotating shaft 2, and a blade bushing 33 is sleeved on the lug 32. It should be explained that the conventional blades are not detachable and have no wear-resistant protective structure on the outside, so it is inconvenient to repair them later once they are worn. In this embodiment, a panel 31 is fixedly connected below the lug 32, and a first mounting hole 311 is provided on the panel 31. The rotating shaft 2 is provided with a groove 21 for inserting the panel 31, and a first threaded hole 211 corresponding to the position of the first mounting hole 311 is provided in the groove 21. A second screw 35 is installed at the first mounting hole 311 and the first threaded hole 211, so that it is convenient to disassemble and assemble a single worn blade unit 3. In addition, in order to reduce the resistance during the stirring process, as shown in the figure, the outer surface of the panel 31 is an arc-shaped structure, and the arc-shaped structure is used to maintain a continuous arc fit with the axial surface of the rotating shaft 2.

[0028] like Figure 5 As shown in the structure, in this embodiment, a second mounting hole 321 is provided on the lug 32, and a second threaded hole 331 corresponding to the second mounting hole 321 is provided on the blade bushing 33. A first screw 34 is installed at the second mounting hole 321 and the second threaded hole 331, so that the blade bushing 33 can be detachably mounted on the lug 32. During use, the wear is mainly concentrated on the blades in contact with the powder. The blade bushing 33 is detachable and can be replaced with a single structure after wear. In this embodiment, the outer surface of the blade bushing 33 is provided with a polyurethane wear-resistant layer, which can further improve the wear resistance and durability.

[0029] The wear-resistant blades of the dual-axis agitator of this embodiment work as follows: when in use, the outer surface of the blade unit 3 that contacts the stirred powder is the first to wear. In order to avoid the inconvenience of maintenance caused by the traditional fixed structure, the patent adopts a detachable structure, and a blade bushing 33 is sleeved on the outside of the lug 32. The blade bushing 33 is easy to disassemble and replace, and is an external protective structure. It has good wear resistance when combined with the polyurethane wear-resistant layer. It should be noted that the lug 32 structure in this patent is essentially the same as the blade of the traditional fixed structure. The blade bushing 33 is installed to improve the wear resistance and avoid wear of the internal lug 32, thereby achieving a long service life. During maintenance, only the wear unit needs to be replaced, and the maintenance cost is low.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A wear-resistant blade for a double-shaft agitator, comprising two rotating shafts (2) rotatably mounted in a mixing chamber (1) of the double-shaft agitator, characterized in that: A plurality of blade units (3) are provided on the rotating shaft (2), and the plurality of blade units (3) are distributed in a spiral shape along the axial surface of the rotating shaft (2); The blade unit (3) comprises a lug (32) which is detachably mounted on the rotating shaft (2), and a blade bushing (33) is sleeved on the lug (32).

2. The wear-resistant blade of a dual-shaft agitator according to claim 1, characterized in that: A panel (31) is fixedly connected below the lug (32), and a first mounting hole (311) is provided on the panel (31); The rotating shaft (2) is provided with an embedding groove (21) for inserting the embedding plate (31), and the embedding groove (21) is provided with a first threaded hole (211) corresponding to the position of the first mounting hole (311); A second screw (35) is installed at the first mounting hole (311) and the first threaded hole (211).

3. The wear-resistant blade of a dual-shaft agitator according to claim 2, characterized in that: The outer surface of the panel (31) is in an arc-shaped structure, and the arc-shaped structure is used to maintain a continuous arc surface fit with the axial surface of the rotating shaft (2).

4. The wear-resistant blade of a dual-shaft agitator according to claim 3, characterized in that: The lug (32) is provided with a second mounting hole (321), the blade bushing (33) is provided with a second threaded hole (331) corresponding one-to-one to the second mounting hole (321), and a first screw (34) is installed at the second mounting hole (321) and the second threaded hole (331).

5. The wear-resistant blade of a dual-shaft agitator according to claim 1, characterized in that: The outer surface of the blade bushing (33) is provided with a polyurethane wear-resistant layer.

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