Anti-sticking blade and reclaimed material drying roller

Abstract

The utility model relates to the field of drying drums, in particular to an anti-sticking blade for a reclaimed material drying drum, which comprises a connecting part and a blade main body, the blade main body is of a rake tooth structure, and the anti-sticking blade is characterized in that the connecting part is of a cylindrical structure, one end of the connecting part is directly welded on the inner wall of the drum, and the other end of the connecting part is fixedly connected with the drum. And the connecting part is used for supporting the blade main body and fixing the blade above the inner wall of the reclaimed material drying roller. The blade is supported by the cylindrical structure, so that the blade body is suspended and does not directly contact with the inner wall of the roller, and when the drying roller works, materials impact the connecting part from the side surface or the front surface, and are shunted towards two sides through the outer curved surface of the cylindrical structure and do not stay on the surface of the connecting part, so that the problem of material adhesion at the joint of the blade and the roller is avoided; therefore, the material sticking in the roller is reduced. The utility model further discloses a reclaimed material drying drum comprising the anti-sticking blades and a drum body.

Description

Technical Field

[0001] This utility model belongs to the technical field of drying drums, specifically relating to an anti-sticking blade for a recycled material drying drum. Furthermore, this utility model also relates to a recycled material drying drum including the aforementioned anti-sticking blade. Background Technology

[0002] In the drying process of recycled materials, material adhesion to the inner wall of the drum or the surface of the equipment (i.e., "material sticking") is a key issue restricting production efficiency and product quality. A typical drying drum structure includes a drum body and multiple sets of helically distributed lifting blades located within the drum's inner cavity. Materials easily adhere after being heated. After a period of use, a large amount of material accumulates on the lifting blades, making cleaning difficult and easily corroding them. This also increases the weight and power consumption of the drying drum, leading to uneven mixing of the recycled materials and affecting construction quality.

[0003] In existing recycled material drying drums, the lifting blades are typically fixed to the inside of the drum using bolts and angle steel. The angle steel can be installed in two ways: with the welded side on the side and the welded side on the ground. Compared to the traditional structure where the blades are directly welded to the drum body, using angle steel facilitates subsequent blade replacement. The section of the blade connected to the angle steel is retained, while the remaining portion is suspended and does not directly contact the drum body, reducing the risk of material adhesion. Furthermore, the existing lifting blades incorporate a chain structure, which uses the chain to tap and reduce material adhesion to the blade surface during operation.

[0004] However, even with the aforementioned blade structure, the recycled material drying drum still inevitably comes into contact with the horizontal surface of the blades during the lifting and rotation process, causing the recycled material to accumulate and form sticky material. Furthermore, the chain's striking direction as the drum rotates is on the outer side of the blades (the material-holding side of the blades is the inner side), making it impossible to directly clean the inner side, let alone remove the sticky material at the angle steel. Therefore, in long-term production use, sticky material will first appear at the angle steel of the drum and then spread to both sides, thus accelerating the overall sticking rate of the blades.

[0005] Therefore, there is an urgent need for an anti-sticking blade that can effectively reduce the sticking speed of material inside the drum and facilitate the cleaning of sticking material from the blade, so as to improve the drying uniformity, equipment reliability and production safety of recycled material drying drum. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model provides an anti-sticking blade and a recycled material drying drum including the aforementioned anti-sticking blade.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an anti-sticking blade, comprising a connecting component (1) and a blade body (2). The blade body (2) has a rake tooth structure, and the surface of the connecting component (1) on the same side as the inner side of the blade body (2) (the material-holding side of the blade is the inner side of the blade) has an arc structure, and one end of it is fixed to the inner wall (5) of the roller, such as... Figure 8 The connecting component (1) is connected to the connecting component (2) to support the blade body (2) and fix the blade above the inner wall (5) of the recycled material drying drum.

[0008] Furthermore, the other end of the connecting component (1) is directly welded and fixed to the blade body (2).

[0009] Furthermore, the anti-stick blades of the recycled material drying drum also include a fixing component (3), which includes a bolt (31) and a nut (32). The blade body (2) of this anti-stick blade structure is provided with a fixing hole, and the connecting component (1) is provided with a positioning hole corresponding to the fixing hole. The bolt (31) can pass through the fixing hole and the positioning hole, and the blade body (2) and the connecting component (1) are fixedly connected by the nut (32), such as Figure 2 .

[0010] Furthermore, the connecting component (1) has a cylindrical structure and a slot inside, such as... Figure 3 As shown, the rake tooth structure of the blade body (2) includes upper rake teeth (21) and lower rake teeth (22). Figure 2 Furthermore, the blade body (2) can also be directly inserted into the connecting component (1) through the lower rake teeth (22), such as Figure 3 .

[0011] Furthermore, the connecting component (1) is provided with a notch (11), such as Figure 4 When the fixing component (3) locks the blade body (2), the two side surfaces of the blade body (2) are completely in contact with one side of the nut (32) and the surface of the notch (11), respectively. Figure 5 .

[0012] Furthermore, the cross-section of the connecting component (1) is semi-circular. When the fixing component (3) locks the blade body (2), the two side surfaces of the blade body (2) are completely in contact with one side of the nut (32) and the plane of the connecting component (1), respectively. Figure 6 The blade body (2) also includes a bending structure (23) that extends from the lower end of the blade body (2). When the fixing component (3) locks the blade body (2), the bending structure (23) fits completely against the inner wall (5) of the roller.

[0013] Furthermore, the anti-sticking blades of the recycled material drying drum also include a chain (4), which is disposed between the lower rake teeth (22), such as Figure 7 .

[0014] Furthermore, the surfaces of the blade body (2) and the connecting component (1) are coated with an anti-stick coating: a polytetrafluoroethylene coating with a thickness of 0.1 to 0.5 mm.

[0015] Furthermore, the surface of the blade body (2) is provided with honeycomb-shaped micropores, and the micropores are filled with solid lubricant, which continuously releases lubricating substances during the friction process to reduce adhesion.

[0016] On the other hand, the present invention also provides a recycled material drying drum, which includes a drum body and anti-sticking blades, wherein the anti-sticking blades are any of the anti-sticking blades described above, and the anti-sticking blades are disposed on the inner wall of the drum body.

[0017] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are: the connecting part (1) of the recycled material drying drum is changed from an angle steel structure to a cylindrical structure, the material holding capacity of the blade body (2) remains unchanged, but the contact between the blade body (2) and the inner wall (5) of the drum is reduced, thereby reducing the sticking speed.

[0018] Meanwhile, when the connecting component (1) has a notch (11) on one side or a semi-circular cross-section, the fixing surface of the nut (32) can completely fit with the surface of the notch (11) or the plane side of the connecting component when the fixing component (3) locks the blade body (2). This tight fit design ensures that the connecting component (1) has a compact overall structure when fixing the blade body (2), avoiding the adhesion of recycled material due to gaps or unevenness, and further improving the anti-sticking performance.

[0019] When the drum is working, the material will slide to both sides when it impacts the connecting part (1) of the cylindrical structure. When the blade body (2) rises with the rotation of the drum, there will be no problem of material sticking at the location of the connecting part (1), thus avoiding the accumulation of material at this location and alleviating the problem of material sticking in the drying drum.

[0020] Furthermore, the chain (4) set between the lower rake teeth (22) swings as the drying drum rotates, making it less likely for the material around it to adhere to the inner wall (5) of the drum and the blade body (2). The chain links at the bottom of the chain (4) will make frictional contact with the inner wall (5) of the drum, which can remove the material adhering to the inner wall (5) of the drum, play a self-cleaning role on the inner wall (5) of the drum and the blade body (2), slow down the material adhering to the inner wall (5) of the drum and the blade body (2), reduce cleaning costs, and improve production efficiency.

[0021] In addition, the surfaces of the blade body (2) and the connecting parts (1) are provided with an anti-stick coating or honeycomb micropores, which can effectively prevent recycled material from adhering to the blade surface, greatly reduce the adhesion between recycled material and blade, and make the recycled material slide off the blade more smoothly during the drying process, further improving the anti-stick performance.

[0022] This utility model also provides a recycled material drying drum including the anti-sticking blades and cylinder body described in any one of the above. The drying drum can effectively prevent material adhesion during the production process, reduce power consumption, improve the uniformity of mixing in the drying drum, and thus improve the construction quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the blade structure in which the connecting component is welded and fixedly connected to the blade body.

[0024] Figure 2 This is a schematic diagram of the blade structure in which the connecting component of this utility model is bolted to the blade body.

[0025] Figure 3 This is a partially enlarged structural diagram of the connecting component of this utility model, which is a cylindrical structure.

[0026] Figure 4 This utility model presents a schematic diagram of a blade structure with a notch in the connecting component.

[0027] Figure 5 This is a partially enlarged structural diagram of the connecting component of this utility model, which has a notch.

[0028] Figure 6 This is a partially enlarged structural diagram of the connecting component of this utility model, which has a semi-circular cross-section.

[0029] Figure 7 This is a schematic diagram of the blade structure of the present invention, which includes a chain.

[0030] Figure 8 This is a schematic diagram of the structure of the recycled material drying drum of this utility model.

[0031] In the diagram: 1. Connecting component; 11. Notch; 2. Blade body; 21. Upper rake tooth; 22. Lower rake tooth; 23. Bending structure; 3. Fixing component; 31. Bolt; 32. Nut; 4. Chain; 5. Inner wall of the drum. Detailed Implementation

[0032] The present invention will be further described below through specific embodiments.

[0033] like Figures 1 to 8As shown, the anti-stick blade for a recycled material drying drum according to this utility model includes a connecting component (1) and a blade body (2). The blade body (2) has a rake tooth structure, and the surface of the connecting component (1) on the same side as the inner side of the blade body (2) (the material-holding side of the blade is the inner side of the blade) has an arc structure, such as... Figure 1 As shown. The connecting component (1) is connected to the blade body (2) to support the blade body (2). One end of the connecting component (1) is directly welded to the inner wall (5) of the drum to fix the blade to the inner wall (5) of the recycled material drying drum, as shown. Figure 8 As shown. Specifically, the structure of the connecting component (1) and its connection method with the blade body (2) have multiple different forms.

[0034] First Embodiment

[0035] The other end of the connecting component (1) is directly welded and fixed to the blade body (2). Compared with the traditional recycled material drying drum, the connecting component (1) of the drum is changed from an angle steel structure to a cylindrical structure, such as... Figure 1 As shown. The connecting component (1) of the blade uses a cylindrical structure and is welded to the inner wall (5) of the drum, so that the blade body (2) is suspended and does not directly contact the inner wall of the drum. When the material passes the blade body (2) from the side, the arc-shaped surface of the connecting component (1) will cause the material flow to slide past both sides. When the blade rotates with the drum, the main material holding position is on the inner side of the blade, and the connecting component (1) will not stick to the material, which can greatly reduce the risk of sticking and thus slow down the overall sticking speed of the blade. Compared with the welding method of the angle steel support and the drum, which is three-sided welding, the welding method of the cylindrical support is full-circumference welding, which reduces the number of welds and the strength after welding is better than that of the angle steel.

[0036] Second Embodiment

[0037] Considering the blade replacement method, the blade body (2) and the connecting component (1) are fastened together by a fixing component (3) composed of bolts (31) and nuts (32), such as Figure 2 As shown, one or more sets of fixing components (3) can be used. The blades can be replaced by removing the fixing components (3). At the same time, the risk of equipment damage caused by excessive material sticking to the blades and rollers can be reduced by regularly cleaning the blades.

[0038] like Figure 3 shown Figure 2A partially enlarged view of the connecting component (1) shows that the connecting component (2) has a groove inside, and the rake tooth structure of the blade body (2) includes an upper rake tooth (21) and a lower rake tooth (22). The blade body (2) is directly inserted into the groove of the connecting component (1) through the lower rake tooth (22). Thus, the blade body (2) and the connecting component (1) form an interlocking structure. This structure ensures that the blade will not loosen during use, and both the front and rear circular tubes can provide support for the blade.

[0039] Third Embodiment

[0040] Considering that the outer side of the connecting component (1) is curved, when the fixing component (3) is tightened, the surface in contact with the connecting component (1) cannot completely fit against the outer surface of the connecting component (1). Therefore, a notch (11) is provided on one side of the connecting component (1), such as... Figure 4 As shown, when the fixing component (3) locks the blade body (2), the two side surfaces of the blade body (2) are completely in contact with one side of the nut (32) and the surface of the notch (11), respectively. At the same time, the curved surface of the connecting component (1) on the inner side of the blade holding part is retained, reducing the problem of material sticking at the connecting component (1) during the material holding process.

[0041] Fourth embodiment

[0042] like Figure 6 As shown, the cross-section of the connecting component (1) is semi-circular, retaining the curved surface of the connecting component (1) on the inner side of the blade holding part. When the fixing component (3) locks the blade body (2), the two side surfaces of the blade body (2) are completely in contact with one side of the nut (32) and the surface of the notch (11), respectively. At the same time, the blade itself has an added bending structure to increase the support strength. In this way, while retaining the non-stick structure at the connecting component (2), the material usage is reduced and the strength of the blade is guaranteed.

[0043] In addition, the existing chain (4) structure was retained in the design, such as Figure 7 As shown, the chain (4) set between the lower rake teeth (22) swings as the drying drum rotates, and the chain (4) is used to knock to reduce the material sticking to the blade surface, further reducing the speed of material sticking.

[0044] The blade body (2) and connecting parts (1) are coated with a polytetrafluoroethylene coating with a thickness of 0.1 to 0.5 mm. Polytetrafluoroethylene has an extremely low coefficient of friction and good chemical stability, which can effectively prevent recycled material from adhering to the blade surface and greatly reduce the adhesion between recycled material and blade, so that recycled material can slide off the blade more smoothly during the drying process.

[0045] The blade body (2) has honeycomb micropores on its surface. The micropores are filled with solid lubricants such as molybdenum disulfide or graphene composite material. During the friction process between the blade and the recycled material, these solid lubricants can continuously release lubricating substances, further reducing the adhesion between the recycled material and the blade, effectively preventing the recycled material from sticking to the blade, and improving the working efficiency of the drying drum and the service life of the blade.

[0046] In addition to the aforementioned anti-sticking blades, this utility model also provides a recycled material drying drum with anti-sticking blades as described in any of the above claims. For the structure of other parts of the recycled material drying drum, please refer to the prior art, which will not be repeated here.

[0047] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A non-stick blade comprising a connecting part (1) and a blade body (2), said blade body (2) being a tine structure, characterized in that: One end of the connecting component (1) is fixedly connected to the inner wall of the roller, the connecting component (1) is connected with the blade body (2) for supporting the blade body (2) and fixing the blade on the inner wall of the reclaimed material drying roller, and the surface on the same side of the connecting component (1) and the blade body (2) (the blade inner side is the material holding side of the blade) is in a circular arc structure.

2. The release blade of claim 1, wherein: The other end of the connecting component (1) is directly welded and fixed with the blade body (2).

3. The release blade of claim 1, wherein: The fixing component (3) is further included, the fixing component (3) comprises a bolt (31) and a nut (32), the blade body (2) is provided with a fixing hole, the connecting component (1) is provided with a positioning hole corresponding to the fixing hole, the bolt (31) passes through the fixing hole and the positioning hole, and the blade body (2) and the connecting component (1) are fixedly connected through the nut (32).

4. The release blade of claim 3, wherein: The connecting component (1) is internally provided with a notch, the blade body (2) comprises upper tines (21) and lower tines (22), and the blade body (2) is directly inserted into the notch of the connecting component (1) through the lower tines (22).

5. The release blade of claim 1 or 3, wherein: The connecting component (1) is provided with a side notch (11), when the fixing component (3) locks the blade body (2), the two side surfaces of the blade body (2) are respectively fully attached to one side of the nut (32) and the surface of the notch (11).

6. The release blade of claim 1 or 3, wherein: The connecting component (1) is provided with a side notch (11), when the fixing component (3) locks the blade body (2), the two side surfaces of the blade body (2) are respectively fully attached to one side of the nut (32) and the surface of the notch (11).

7. The release blade of claim 6, wherein: The blade body (2) further comprises a bending structure (23), the bending structure extends from the lower end of the blade body (2), and when the fixing component (3) locks the blade body (2), the bending structure (23) is fully attached to the inner wall of the roller.

8. The release blade of claim 4, wherein: The chain (4) is further included, and the chain (4) is arranged between the lower tines (22).

9. The release blade of claim 1, wherein: The surfaces of the blade body (2) and the connecting component (1) are coated with an anti-sticking coating, and the anti-sticking coating is a polytetrafluoroethylene coating with a thickness of 0.1-0.5 mm.

10. Regenerative material drying drum comprising a barrel and anti-sticking blades, characterized in that: The anti-sticking blade is the anti-sticking blade according to any one of claims 1 to 9, and the anti-sticking blade is arranged on the inner wall of the barrel.

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