Asphalt material drying roller with sliding cleaning function

Abstract

The utility model provides an asphalt material drying roller with a sliding cleaning function, which comprises a roller body, material lifting blades, a fixed supporting piece and a sliding piece, a material lifting area is arranged in the roller body, and a plurality of material lifting blades are arranged in the material lifting area at intervals in the circumferential direction; each material lifting blade is provided with at least two fixed supporting pieces; the two ends of the fixed supporting piece are connected with the inner wall of the roller body, a sliding groove allowing the material lifting blades to slide in the circumferential direction is formed in the middle of the fixed supporting piece, and the sliding piece is arranged at the bottoms of the material lifting blades and assembled on the sliding groove in a sliding mode. The drying roller has the advantages that materials can be lifted upwards to form a material curtain, and the material lifting blades can slide along the sliding grooves, so that the materials adhered to the inner wall of the roller body can be cleaned in a large range, the self-cleaning function is achieved, and the performance of the drying roller is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of drying drums, and particularly relates to an asphalt material drying drum with a sliding cleaning function.

Background Art

[0002] Plant mix hot recycling refers to the asphalt mixture that can be reused after the old road surface is dug, recycled, crushed, screened, and then sent into the mixing equipment for heating and mixing with a regenerant, new asphalt material, new aggregate, etc. in a certain proportion, so as to realize the recycling of old asphalt.

[0003] In the prior art, the heating and stirring of recycled asphalt materials are mostly carried out by using a heating and drying drum. The common material lifting blade structures inside the heating and drying drum are divided into two types: rigid rake nail type and flexible chain type. For example, a countercurrent anti-sticking drying drum for recycled asphalt mixture disclosed in the Chinese utility model patent with the application number CN202222190355.4. Whether it is a rigid rake nail type or a flexible chain type drying and heating drum, some asphalt materials will adhere to the inner wall of the drying drum; when the internal asphalt materials adhere to a certain degree, it will affect the drying efficiency of the drying drum, and further affect the equipment performance; therefore, how to clean the inner wall of the drying drum is an urgent problem to be solved.

Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an asphalt material drying drum with a sliding cleaning function, which can automatically clean the materials adhered to the inner wall of the drying drum.

[0005] The utility model is realized as follows: an asphalt material drying drum with a sliding cleaning function, including a drum body, material lifting blades, fixed supports, and sliding parts. There is a material lifting area inside the drum body, and a number of the material lifting blades are arranged at intervals around the circumferential direction in the material lifting area; each of the material lifting blades is provided with at least two of the fixed supports;

[0006] Both ends of the fixed support are connected to the inner wall of the drum body. A sliding groove for the material lifting blade to slide along the circumferential direction is opened in the middle of the fixed support. The sliding part is arranged at the bottom of the material lifting blade, and the sliding part is slidably assembled on the sliding groove.

[0007] Further, the material lifting blade includes a number of first material lifting blades evenly arranged around the circumferential direction on the inner wall of the drum body, and each of the first material lifting blades extends along the length direction of the drum body;

[0008] The first material lifting blade includes a comb-shaped rigid blade, a chain-link flexible blade, and several first locking members. Both ends of the bottom of the chain-link flexible blade are slidably assembled on the sliding groove through the sliding members, and the comb-shaped rigid blade is locked and connected to the chain-link flexible blade through the first locking member.

[0009] Further, the material lifting blade further includes several second material lifting blades uniformly arranged circumferentially on the inner wall of the drum body, and each second material lifting blade extends along the length direction of the drum body;

[0010] The second material lifting blade is a chain-link flexible blade, and both ends of the bottom of the second material lifting blade are slidably assembled on the sliding groove through the sliding members.

[0011] Further, the first material lifting blade and the second material lifting blade are arranged in an alternating distribution.

[0012] Further, the fixed support member includes an assembly plate, a fixed stop block, a bent fixing member, and a second locking member;

[0013] The sliding groove is arranged in the middle of the assembly plate along the length direction of the assembly plate. The two ends of the assembly plate are respectively provided with the bent fixing member and the fixed stop block. The lower end of the bent fixing member is fixedly connected to the inner wall of the drum body. One end of the fixed stop block is locked and connected to the upper end of the bent fixing member through the second locking member, and the other end of the fixed stop block is locked and connected to the end of the assembly plate through the second locking member; there is a first gap between the assembly plate and the inner wall of the drum body.

[0014] Further, the assembly plate is an arc-shaped plate.

[0015] Further, the sliding member includes a first limit block arranged at the bottom of the material lifting blade, a second limit block arranged at the bottom of the fixed support member, and a connecting block passing through the sliding groove and connecting between the first limit block and the second limit block; there is a second gap between the second limit block and the inner wall of the drum body.

[0016] Further, the comb-shaped rigid blade is made of stainless steel.

[0017] Further, one end inside the drum body has a feeding area, and a conical guiding structure gradually expanding from the feeding end to the discharging end is formed in the feeding area.

[0018] Further, a guiding area is formed between the feeding area and the material lifting area inside the drum body, and several guiding blades are arranged in the guiding area. The bottom of the guiding blade is a hollow structure.

[0019] By adopting the technical solution of the present utility model, it has at least the following beneficial effects:

[0020] 1. For each material lifting blade, at least two fixed supports are provided. The two ends of the fixed support are connected to the inner wall of the drum body. A sliding groove is opened in the middle of the fixed support, and the bottom of the material lifting blade is slidably assembled with the sliding groove of the fixed support through a sliding member. When the material lifting blade rotates together with the drum body, it can not only lift the material upward to form a material curtain, but also the material lifting blade itself can slide along the sliding groove, so as to realize a large-range cleaning of the material adhering to the inner wall of the drum body, achieve the self-cleaning effect, and ensure the performance of the drying drum.

[0021] 2. By arranging bending fixing parts and fixed stoppers at both ends of the assembly plate, and locking and connecting the two ends of the fixed stopper to the assembly plate and the bending fixing part respectively through second locking parts, it is very convenient to disassemble, repair, replace, etc. the material lifting blade during specific use.

[0022] 3. By designing to lock and connect the comb-shaped rigid blade and the chain-link flexible blade together with the first locking part, it is convenient to disassemble, install, replace, repair, etc. the comb-shaped rigid blade according to actual needs during specific use.

Description of the Drawings

[0023] The following further describes the present utility model with reference to the drawings in conjunction with embodiments.

[0024] Figure 1 is one of the three-dimensional structure diagrams of the first material lifting blade in the present utility model;

[0025] Figure 2 is the second three-dimensional structure diagram of the first material lifting blade in the present utility model;

[0026] Figure 3 is the three-dimensional structure diagram of the second material lifting blade in the present utility model;

[0027] Figure 4 is the overall structure diagram of an asphalt material drying drum with a sliding cleaning function in the present utility model;

[0028] Figure 5 is the three-dimensional structure diagram of the staggered arrangement of the first material lifting blade and the second material lifting blade in the present utility model;

[0029] Figure 6 is the end view along one end of the drum body when the first material lifting blade and the second material lifting blade are staggered in the present utility model;

[0030] Figure 7It is a front view of the staggered arrangement of the first material lifting blade and the second material lifting blade in the present utility model.

[0031] Explanation of reference numerals:

[0032] Drying drum 100;

[0033] Drum body 1, material lifting area 11, feeding area 12, conical material guiding structure 13, material guiding area 14;

[0034] Material lifting blade 2, first material lifting blade 21, comb-shaped rigid blade 211, comb teeth 2111, chain-link flexible blade 212, first locking member 213, second material lifting blade 22;

[0035] Fixed support member 3, sliding groove 31, assembly plate 32, fixed stop block 33, bent fixing member 34, second locking member 35;

[0036] Sliding member 4, first limit block 41, second limit block 42, connecting block 43;

[0037] Material guiding blade 5.

Detailed implementation manners

[0038] In order to better understand the technical solution of the present utility model, the technical solution of the present utility model will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0039] It should be noted here that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing these implementation manners and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0040] Please refer to Figures 1 to 7As shown in the figure, a preferred embodiment of a bituminous material drying drum 100 with a sliding cleaning function according to the present utility model, the drying drum 100 includes a drum body 1, lifting blades 2, fixed supports 3 and sliding members 4. There is a lifting area 11 inside the drum body 1. A plurality of the lifting blades 2 are arranged at intervals around the circumferential direction in the lifting area 11. In the lifting area 11, the lifting blades 2 can lift the material (i.e., asphalt recycled material) upward to form a material curtain; Each of the lifting blades 2 is provided with at least two of the fixed supports 3 to connect the lifting blade 2 to the inner wall of the drum body 1 by means of the fixed supports 3;

[0041] Both ends of the fixed support 3 are connected to the inner wall of the drum body 1. A sliding groove 31 for the lifting blade 2 to slide along the circumferential direction is provided in the middle of the fixed support 3. A sliding member 4 is provided at the bottom of the lifting blade 2, and the sliding member 4 is slidably assembled on the sliding groove 31, so that when the drum body 1 rotates, the lifting blade 2 can slide along the sliding groove 31. When the drying drum 100 of the present utility model is working specifically, after the material is fed into the lifting area 11 of the drum body 1, when the lifting blade 2 rotates with the drum body 1 and gradually moves upward from the lowest point position, the lifting blade 2 will slide to one end of the sliding groove 31 and be in a fixed state. And during the process that the lifting blade 2 gradually rises following the rotation of the drum body 1, the lifting blade 2 will lift the material at the bottom upward and scatter the material to form a material curtain; When the lifting blade 2 gradually moves downward from the highest point position, the lifting blade 2 will slide along the sliding groove 31 to the other end, so as to automatically clean the material adhering to the inner wall of the drum body 1.

[0042] In the present utility model, at least two fixed supports 3 are provided for each lifting blade 2. Both ends of the fixed support 3 are connected to the inner wall of the drum body 1. A sliding groove 31 is provided in the middle of the fixed support 3, and the bottom of the lifting blade 2 is slidably assembled with the sliding groove 31 of the fixed support 3 through the sliding member 4, so that during the process that the lifting blade 2 rotates with the drum body 1, it can not only lift the material upward to form a material curtain, but also the lifting blade 2 itself can slide along the sliding groove 31, thereby being able to clean a large area of the material adhering to the inner wall of the drum body 1, achieving a self-cleaning effect and ensuring the performance of the drying drum 100.

[0043] In some embodiments of the present utility model, please refer to with emphasis Figures 1 - 3 As shown in the figure, the lifting blade 2 includes a plurality of first lifting blades 21 uniformly arranged around the circumferential direction on the inner wall of the drum body 1, and each of the first lifting blades 21 extends along the length direction of the drum body 1;

[0044] The first material lifting blade 21 includes a comb-shaped rigid blade 211, a chain-link flexible blade 212, and a plurality of first locking members 213. Both ends of the bottom of the chain-link flexible blade 212 are slidably assembled on the sliding groove 31 through the sliding members 4. The comb-shaped rigid blade 211 is locked and connected to the chain-link flexible blade 212 by the first locking member 213. Among them, the first locking member 213 may include a bolt and a nut. In the present utility model, by designing to lock and connect the comb-shaped rigid blade 211 and the chain-link flexible blade 212 together by the first locking member 213, it is convenient to disassemble, install, replace, repair, etc. the comb-shaped rigid blade 211 according to actual needs during specific use.

[0045] A plurality of combs 2111 with a bending angle are arranged at intervals at the free end of the comb-shaped rigid blade 211. The combs 2111 with a bending angle are beneficial to lifting large-particle materials upward to form a high material curtain, and also convenient for fine materials to directly fall through the gaps between the combs 2111. As a specific embodiment of the present utility model, the comb-shaped rigid blade 211 is made of stainless steel material to prevent materials from sticking to the comb-shaped rigid blade 211.

[0046] The chain-link flexible blade 212 has a plurality of soft chains horizontally arranged from top to bottom, and both ends of the soft chains are fixed and the middle can swing freely. When the first material lifting blade 21 slides along the sliding groove 31, the soft chains can swing and rub against the inner wall of the roller body 1 to achieve cleaning.

[0047] When the first material lifting blade 21 of the present invention works specifically, the comb-shaped rigid blade 211 can lift large-particle materials upward to form a high material curtain, so that hot air can pass through the high material curtain to heat the large-particle materials, thereby improving the heating efficiency. And the fine materials fall through the gaps between the combs 2111 without forming a high material curtain, so as to avoid overheating of the fine materials and accelerating the aging of the asphalt in the fine materials, which affects the utilization value of the recycled materials. The chain-link flexible blade 212 can lift some fine materials upward to form a low material curtain and slowly heat the fine materials by means of thermal radiation. The chain-link flexible blade 212 can also play a role in guiding materials to prevent materials from blocking inside the roller body 1. At the same time, when the first material lifting blade 21 slides along the sliding groove 31, the chain-link flexible blade 212 can also swing and rub against the inner wall of the roller body 1 to achieve the cleaning purpose.

[0048] In some embodiments of the present utility model, the material lifting blade 2 further includes a plurality of second material lifting blades 22 uniformly arranged around the circumference on the inner wall of the roller body 1, and each second material lifting blade 22 extends along the length direction of the roller body 1.

[0049] The second material lifting blade 22 is a loop chain flexible blade. The specific structure of the loop chain flexible blade here is exactly the same as that of the loop chain flexible blade 212 in the first material lifting blade 21. In the actual use process, comb-shaped rigid blades 211 can be installed on the loop chain flexible blade according to actual needs to obtain the first material lifting blade 21, or the comb-shaped rigid blades 211 on the loop chain flexible blade can be removed to obtain the second material lifting blade 22. Both ends of the bottom of the second material lifting blade 22 are slidably assembled on the sliding groove 31 through the sliding members 4.

[0050] In the specific implementation of the present utility model, the first material lifting blade 21 and the second material lifting blade 22 can be freely combined according to actual needs. For example, when the proportion of large particle materials in the heated material is relatively large, the number of the first material lifting blades 21 can be increased to enhance the material lifting effect, densify the material curtain, and increase the heat exchange efficiency, so as to better melt and heat the large particle coarse materials through, avoid the temperature drop of the finished material, and improve the paving effect of the finished material on the road surface. When the proportion of fine particle materials in the heated material is relatively large, the number of the first material lifting blades 21 can be reduced, and the flexible second material lifting blade 22 can be relied on for material lifting to form a low material curtain, realizing slow heating, avoiding premature and excessive heating of the fine materials, thereby reducing the aging degree of asphalt in the fine materials and realizing the utilization value of the recycled materials.

[0051] As a specific implementation manner of the present utility model, please refer to Figures 5 - 7 emphatically, the first material lifting blade 21 and the second material lifting blade 22 are arranged in an alternating distribution.

[0052] In some embodiments of the present utility model, the fixed support member 3 includes an assembly plate 32, a fixed stop block 33, a bent fixing member 34, and a second locking member 35.

[0053] The sliding groove 31 is arranged in the middle of the assembly plate 32 along the length direction of the assembly plate 32. The two ends of the assembly plate 32 are respectively provided with the bent fixing member 34 and the fixed stop block 33. Among them, the bent fixing member 34 is used to support the assembly plate 32 to a certain height so that the assembly plate 32 does not contact the inner wall of the drum body 1. The lower end of the bent fixing member 34 is fixedly connected to the inner wall of the drum body 1, so that the bent fixing member 34 and the drum body 1 are connected as a whole. One end of the fixed stop block 33 is locked and connected to the upper end of the bent fixing member 34 through the second locking member 35, and the other end of the fixed stop block 33 is locked and connected to the end of the assembly plate 32 through the second locking member 35. In the specific implementation of the present utility model, the fixed stop block 33 can be arranged above the assembly plate 32. A first gap is left between the assembly plate 32 and the inner wall of the drum body 1. Among them, the second locking member 35 can include a bolt and a nut.

[0054] In the present utility model, bending fixing members 34 and fixed stoppers 33 are respectively arranged at both ends of the assembly plate 32, and both ends of the fixed stopper 33 are respectively locked and connected to the assembly plate 32 and the bending fixing member 34 through second locking members 35, so that during the specific use process, it is very convenient to disassemble, repair, replace, etc. the material lifting blades 2.

[0055] As a specific implementation manner of the present utility model, in order to better adapt to the arc-shaped inner wall of the drum body 1, the assembly plate 32 is an arc-shaped plate.

[0056] In some embodiments of the present utility model, the sliding member 4 includes a first limiting block 41 arranged at the bottom of the material lifting blade 2, a second limiting block 42 arranged at the bottom of the fixed support member 3, and a connecting block 43 passing through the sliding groove 31 and connecting between the first limiting block 41 and the second limiting block 42, that is, the whole sliding member 4 is in an "I" - shaped structure, so that the sliding member 4 will not be separated from the fixed support member 3 during the working process; a second gap is left between the second limiting block 42 and the inner wall of the drum body 1, so that the sliding member 4 can slide better along the sliding groove 31.

[0057] In some embodiments of the present utility model, one end inside the drum body 1 has a feeding area 12, and a conical guiding structure 13 gradually expanding from the feeding end to the discharging end is formed in the feeding area 12. Through the design of the conical guiding structure 13, it can quickly introduce materials into the drum body 1, avoid the phenomenon of material backflow in the drum body 1, and at the same time, the inner wall of the conical guiding structure 13 needs to be a smooth inner wall, so as to prevent materials from adhering to the inner wall of the conical guiding structure 13, thereby affecting the feeding speed of the recycled materials.

[0058] In some embodiments of the present utility model, a guiding area 14 is formed between the feeding area 12 and the material lifting area 11 inside the drum body 1, and a plurality of guiding blades 5 are arranged in the guiding area 14. The bottom of the guiding blade 5 is a hollow structure, that is, a certain distance is left between the bottom of the guiding blade 5 and the inner wall of the drum body 1 except for the connecting part, so that the materials can slide along the inner wall of the drum body 1. Sliding will generate friction, and through the friction, it can prevent the inner wall of the drum body 1 from adhering to materials. At the same time, the guiding blade 5 has no material lifting function, and can quickly introduce the materials into the material lifting area 11 of the drum body 1, preventing congestion inside the guiding area 14.

[0059] Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present utility model. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present utility model should all be covered within the scope protected by the claims of the present utility model.

Claims

1. An asphalt drying drum with a sliding cleaning function, comprising a drum body and a material lifting blade, wherein the drum body has a material lifting area, and the material lifting area is provided with a plurality of the material lifting blades at intervals around the circumference; characterized in that: It also includes a fixed support member and a sliding member; each of the lifting blades is equipped with at least two of the fixed support members; The two ends of the fixed support are connected to the inner wall of the drum body, a sliding groove is provided in the middle of the fixed support for the lifting blade to slide along the circumferential direction, the sliding member is provided at the bottom of the lifting blade, and the sliding member is slidably assembled on the sliding groove.

2. The asphalt drying drum with sliding cleaning function as claimed in claim 1, characterized in that: The material raising blades include a plurality of first material raising blades uniformly arranged on the inner wall of the drum body in a circumferential direction, and each of the first material raising blades is extended along the length direction of the drum body; The first material lifting blade includes a comb-toothed rigid blade, a chain-type flexible blade and a plurality of first locking members. Both ends of the bottom of the chain-type flexible blade are slidably assembled on the sliding groove through the sliding member. The comb-toothed rigid blade is locked and connected to the chain-type flexible blade through the first locking member.

3. The asphalt drying drum with sliding cleaning function as claimed in claim 2, characterized in that: The material raising blades further include a plurality of second material raising blades uniformly arranged on the inner wall of the drum body in a circumferential direction, and each of the second material raising blades is extended along the length direction of the drum body; The second material lifting blade is a ring chain type flexible blade, and both ends of the bottom of the second material lifting blade are slidably assembled on the sliding groove through the sliding member.

4. The asphalt drying drum with sliding cleaning function as claimed in claim 3, characterized in that: The first material lifting blades and the second material lifting blades are arranged in a staggered distribution.

5. The asphalt drying drum with sliding cleaning function as claimed in claim 1, characterized in that: The fixed support member includes an assembly plate, a fixed stopper, a bending fixed member and a second locking member; The sliding groove is arranged in the middle part of the assembly plate along the length direction of the assembly plate, and the two ends of the assembly plate are equipped with the bending fixing piece and the fixed stopper, the lower end of the bending fixing piece is fixedly connected to the inner wall of the roller body, one end of the fixed stopper is locked and connected to the upper end of the bending fixing piece through a second locking piece, and the other end of the fixed stopper is locked and connected to the end of the assembly plate through a second locking piece; a first gap is left between the assembly plate and the inner wall of the roller body.

6. The asphalt drying drum with sliding cleaning function as claimed in claim 5, characterized in that: The assembly plate is an arc-shaped plate.

7. The asphalt drying drum with sliding cleaning function as claimed in claim 1, characterized in that: The sliding member includes a first limit block arranged at the bottom of the lifting blade, a second limit block arranged at the bottom of the fixed support member, and a connecting block passing through the sliding groove and connected between the first limit block and the second limit block; a second gap is left between the second limit block and the inner wall of the drum body.

8. The asphalt drying drum with sliding cleaning function as claimed in claim 3, characterized in that: The comb-tooth-shaped rigid blades are made of stainless steel.

9. An asphalt drying drum with sliding cleaning function as claimed in any one of claims 1 to 8, characterized in that: One end of the drum body is provided with a feeding area, and the feeding area is formed with a conical material guiding structure which gradually expands from the feeding end to the discharging end.

10. The asphalt drying drum with sliding cleaning function as claimed in claim 9, characterized in that: A material guiding area is formed between the material feeding area and the material lifting area in the drum body. A plurality of material guiding blades are arranged in the material guiding area. The bottom of the material guiding blades is a hollow structure.

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