Drum-type screening machine
Through the design of the drum screening machine, the material congestion and noise problems of vibrating screening equipment when dealing with high humidity or high viscosity asphalt milling materials are solved, and efficient and stable multi-stage screening and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202422092846.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-27
AI Technical Summary
Traditional vibrating screening equipment is prone to material congestion when dealing with high humidity or high viscosity asphalt milling materials, which affects screening efficiency, and is noisy, the screening mesh is easily damaged, and it is inconvenient to repair.
The drum type screening machine is adopted, the drum components are installed inclinedly, and the screen hole diameter is gradually reduced. Combined with the deflector plate and the drive component, multi-stage screening is realized. The materials are flipped and rotated in the drum. Qualified materials are discharged through screens of different levels, and unqualified materials are discharged from the tail discharge port.
It realizes efficient multi-stage screening of asphalt milling materials, stable operation, low noise, easy maintenance, and extends the service life of the equipment.
Smart Images
Figure CN223056053U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening machine equipment, in particular to a drum type screening machine. Background Art
[0002] The reuse of asphalt milling materials combines environmental protection and economic benefits. It not only reduces the landfill volume of construction waste, but also reduces the cost of road maintenance through the recycling of resources. This process covers multiple key links from recycling and processing to crushing and screening, and then to the application of advanced recycling technologies. Among them, screening, as an important bridge connecting crushing and subsequent processing, its efficiency and quality directly affect the overall performance of recycled asphalt mixture.
[0003] At present, the screening of asphalt milling materials is mainly to continuously and stably feed the preliminarily crushed asphalt milling materials into the vibrating screening equipment through a belt conveyor. Different aperture screens are laid inside these vibrating screening equipment, aiming to classify the asphalt milling materials according to the particle size, so as to be proportioned and used according to different engineering requirements in the follow-up; however, the traditional vibrating screening method often fails to ensure the stable speed of the material advancing on the screen surface. Especially when dealing with high-humidity or high-viscosity asphalt milling materials, the material congestion phenomenon is particularly serious, which not only affects the screening efficiency, but also may cause excessive wear and damage to the screen, and is not convenient for inspecting and maintaining the equipment; at the same time, the vibrating equipment also has the disadvantage of relatively high noise during the screening process.
[0004] In order to solve the above problems, it is urgent to develop a drum type screening machine. Content of the Utility Model
[0005] The applicant of the present utility model aims at the above-mentioned disadvantages in the existing production technology, and provides a drum type screening machine, so as to perform multi-layer screening on asphalt milling materials, with stable operation, high screening efficiency and low noise.
[0006] The technical solution adopted by the present utility model is as follows: a drum type screening machine, including a drum assembly, the drum assembly is arranged on a base frame, and an inspection platform at the same height is arranged beside the base frame. The drum assembly is arranged obliquely, and the inlet side position of the drum assembly is higher than the outlet side position; a driving assembly is arranged on one side of the drum assembly, and the driving assembly is used to drive the drum assembly to rotate; a plurality of drum bodies are arranged in sequence along the discharging direction of the drum assembly, and the barrel wall of each drum body is woven by a screen. The aperture of the screen on a single drum body is the same, and the apertures of the screens on adjacent drum bodies change from small to large along the discharging direction; a guide plate is arranged on the inner wall of each drum body along the rotation direction of the drum body; a corresponding blanking assembly is arranged below the drum assembly, and an unqualified material discharging port is arranged at the outlet side position of the drum assembly.
[0007] As a further improvement of the above technical solution:
[0008] Preferably, the structure of the drum assembly is as follows: a first drum body, a second drum body, and a third drum body are sequentially arranged along the direction from the inlet side position to the outlet side position; the first drum body, the second drum body, and the third drum body are in a concentric drum structure and fixedly connected as a whole;
[0009] More preferably, the aperture of the screen on the side wall of the first drum body is smaller than the aperture of the screen on the side wall of the second drum body; the aperture of the screen on the side wall of the second drum body is smaller than the aperture of the screen on the side wall of the third drum body.
[0010] Preferably, the structure of the blanking assembly is as follows: it includes a fine material blanking hopper, a medium material blanking hopper, and a coarse material blanking hopper that are sequentially arranged along the direction from the inlet side position to the outlet side position; the fine material blanking hopper is arranged below the first drum body; the medium material blanking hopper is arranged below the second drum body; the coarse material blanking hopper is arranged below the third drum body.
[0011] Preferably, the structure of the drive assembly is as follows: it includes a drive motor for providing power, the output end of the drive motor is connected to a speed reducer, the other end of the speed reducer is connected to a friction wheel through a coupling, and the drive motor provides power to drive the friction wheel to rotate; the outer side wall of the friction wheel abuts against the barrel wall of the drum assembly.
[0012] Preferably, the structure of the deflector is a deflector body structure that is spiral along the barrel wall.
[0013] Preferably, ladders for climbing are arranged on both sides of the inspection platform.
[0014] The beneficial effects of the present utility model are as follows:
[0015] The structure of the present utility model is compact. This drum screening machine is mainly used for screening asphalt milling materials. The skeleton of each drum body is wrapped with a screen. The aperture of the screen holes on each drum body is the same, and the screen holes on adjacent drums are arranged in a trend of increasing from small to large along the discharge direction. The present utility model installs the drum obliquely on the base frame. After the friction wheel is driven by the drive motor, it drives the drum to rotate. When the material enters the drum, due to the inclination and rotation of the drum, the material on the screen surface is turned over and rotated, so that the qualified material passes through the screen at the bottom of the drum and is discharged from the corresponding discharge hopper, and the unqualified material is discharged from the unqualified material discharge port at the tail of the drum. The drum screening machine of the present utility model runs smoothly, has low noise, is convenient for maintenance and inspection, uses multiple drum bodies to arrange screens with different multi-level screen holes, has high screening efficiency, and has a long service life;
[0016] The present utility model also has the following advantages:
[0017] A visual inspection platform at the same height is provided beside the base frame of the present utility model, facilitating the operator to climb onto the visual inspection platform to visually inspect and repair the drum screening machine at the same height, which is convenient for subsequent maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0019] Figure 2 is Figure 1 the top view of
[0020] Figure 3 is Figure 1 the sectional view taken along A-A in
[0021] Figure 4 It is a schematic diagram of the specific structure of the drive assembly of the present utility model.
[0022] Wherein: 1. Drum assembly; 2. Base frame; 3. Drive assembly; 4. Feeding assembly; 5. Outlet for unqualified materials; 6. Deflector; 7. Ladder;
[0023] 11. First drum body; 12. Second drum body; 13. Third drum body;
[0024] 31. Drive motor; 32. Reducer; 33. Friction wheel;
[0025] 41. Fine material hopper; 42. Medium material hopper; 43. Coarse material hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The following will describe the specific embodiments of the present utility model with reference to the accompanying drawings.
[0027] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present utility model more thorough and comprehensive.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0029] In the case of using "comprising", "having", and "including" described in this text, unless explicit limiting terms are used, such as "only", "consisting of", etc., another component may also be added. Unless otherwise mentioned, terms in the singular form may include the plural form and should not be understood as having a quantity of one.
[0030] It should be understood that although terms such as "first" and "second" may be used in this text to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present utility model, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element.
[0031] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are only drawn by way of example in the drawings and not necessarily to the true scale.
[0032] As Figures 1 to 4 , a schematic structural state diagram of a drum sieve in an embodiment of the present utility model is shown; for ease of description, the drawings only show the structures related to the embodiments of the present utility model.
[0033] In this embodiment, a drum sieve is provided, which includes a drum assembly 1. The drum assembly 1 is arranged on a base frame 2, and an inspection platform at the same height is arranged beside the base frame 2; the drum assembly 1 is arranged obliquely, and the inlet side position of the drum assembly 1 is higher than the outlet side position; a driving assembly 3 is arranged on one side of the drum assembly 1, and the driving assembly 3 is used to drive the drum assembly 1 to rotate; a plurality of drum bodies are arranged in sequence along the discharge direction on the drum assembly 1. The barrel wall of each drum body is woven by a sieve mesh. The aperture of the sieve mesh on a single drum body is the same, and the sieve holes on adjacent drum bodies change from small to large along the discharge direction; a guide plate 6 is arranged on the inner wall of each drum body along the rotation direction of the drum body; a corresponding blanking assembly 4 is arranged below the drum assembly 1, and an unqualified material discharge port 5 is arranged at the outlet side position of the drum assembly 1.
[0034] Furthermore, the structure of the drum assembly 1 is: a first drum body 11, a second drum body 12, and a third drum body 13 are arranged in sequence along the direction from the inlet side position to the outlet side position; the first drum body 11, the second drum body 12, and the third drum body 13 are in a concentric drum structure and are fixedly connected as a whole;
[0035] Even further, the aperture of the sieve mesh on the side wall of the first drum body 11 is smaller than the aperture of the sieve mesh on the side wall of the second drum body 12; the aperture of the sieve mesh on the side wall of the second drum body 12 is smaller than the aperture of the sieve mesh on the side wall of the third drum body 13.
[0036] In this embodiment, the structure of the blanking assembly 4 is as follows: it includes a fine material blanking hopper 41, a medium material blanking hopper 42, and a coarse material blanking hopper 43 that are sequentially arranged along the direction from the inlet side position to the outlet side position; the fine material blanking hopper 41 is arranged below the first roller body 11; the medium material blanking hopper 42 is arranged below the second roller body 12; the coarse material blanking hopper 43 is arranged below the third roller body 13.
[0037] In this embodiment, the structure of the driving assembly 3 is as follows: it includes a driving motor 31 for providing power. The output end of the driving motor 31 is connected to a speed reducer 32, and the other end of the speed reducer 32 is connected to a friction wheel 33 through a coupling. The driving motor 31 provides power to drive the friction wheel 33 to rotate; the outer side wall of the friction wheel 33 abuts against the barrel wall of the roller assembly 1; while the friction wheel 33 is driven by the driving motor 31 to rotate, the friction wheel 33 causes the roller in contact with it to rotate in the opposite direction of the rotation direction of the friction wheel 33.
[0038] In this embodiment, the structure of the guide plate 6 is set as a guide plate body structure in a spiral shape along the barrel wall.
[0039] In this embodiment, climbing ladders 7 for climbing are arranged on both sides of the inspection platform, which is convenient for operators to inspect and repair the device.
[0040] In actual work, the working method of the present utility model is as follows:
[0041] Send the asphalt milling material into the feed inlet of the roller assembly 1. The asphalt milling material rotates along with the rotation of the roller assembly 1 and flips and rotates inside the roller assembly 1 along the guide plate 6 and sequentially passes through the first roller body 11, the second roller body 12, and the third roller body 13 along the discharge direction;
[0042] Since the sieve holes of the sieves on the first roller body 11, the second roller body 12, and the third roller body 13 are distributed from small to large, therefore, the fine material in the asphalt milling material is sent into the fine material blanking hopper 41 through the first-stage sieve at the first roller body 11, the medium material in the asphalt milling material is sent into the medium material blanking hopper 42 through the second-stage sieve at the second roller body 12, and the coarse material in the asphalt milling material is sent into the coarse material blanking hopper 43 through the third-stage sieve at the third roller body 13;
[0043] Finally, the unqualified asphalt milling material that is still larger than the maximum sieve hole diameter is discharged through the unqualified material discharge port 5.
[0044] The structure of the present utility model is reasonable. Through multiple-stage sieves with different sieve hole diameters distributed from small to large along the discharge direction on multiple roller bodies, rapid multi-stage screening is realized, and the screening efficiency is high; moreover, the drum-type screening method also avoids the noise of the previous vibration screening.
[0045] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.
[0046] The above-described embodiments only express the implementation manners of the present utility model, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A drum sieve, characterized in that: It includes a drum assembly (1), and the drum assembly (1) is arranged on a base frame (2). An inspection platform at the same height is arranged beside the base frame (2). The drum assembly (1) is inclined, and the inlet side position of the drum assembly (1) is higher than the outlet side position. A driving assembly (3) is arranged on one side of the drum assembly (1), and the driving assembly (3) is used to drive the drum assembly (1) to rotate. A plurality of drum bodies are sequentially arranged on the drum assembly (1) along the discharging direction. The barrel wall of each drum body is woven by a screen. The aperture of the screen holes on a single drum body is the same, and the screen holes on adjacent drum bodies change from small to large along the discharging direction. A guide plate (6) is arranged on the inner wall of each drum body along the rotation direction of the drum body. A corresponding blanking assembly (4) is arranged below the drum assembly (1), and an unqualified material discharging port (5) is arranged at the outlet side position of the drum assembly (1).
2. The drum sieve according to claim 1, wherein: The structure of the drum assembly (1) is: a first drum body (11), a second drum body (12) and a third drum body (13) are sequentially arranged along the direction from the inlet side position to the outlet side position; the first drum body (11), the second drum body (12) and the third drum body (13) are in a concentric drum structure and are fixedly connected as a whole.
3. The drum sieve as claimed in claim 2, wherein: The aperture of the screen on the side wall of the first drum body (11) is smaller than the aperture of the screen on the side wall of the second drum body (12). The aperture of the screen on the side wall of the second drum body (12) is smaller than the aperture of the screen on the side wall of the third drum body (13).
4. The drum sieve according to claim 3, wherein: The structure of the blanking assembly (4) is: it includes a fine material blanking hopper (41), a medium material blanking hopper (42) and a coarse material blanking hopper (43) which are sequentially arranged along the direction from the inlet side position to the outlet side position. The fine material blanking hopper (41) is arranged below the first drum body (11). The medium material blanking hopper (42) is arranged below the second drum body (12). The coarse material blanking hopper (43) is arranged below the third drum body (13).
5. The drum sieve as claimed in claim 1, wherein: The structure of the driving assembly (3) is: it includes a driving motor (31) for providing power. The output end of the driving motor (31) is connected to a reducer (32), and the other end of the reducer (32) is connected to a friction wheel (33) through a coupling. The driving motor (31) provides power to drive the friction wheel (33) to rotate. The outer side wall of the friction wheel (33) abuts against the barrel wall of the drum assembly (1).
6. The drum sieve according to claim 1, wherein: The structure of the guide plate (6) is set as a guide plate body structure in a spiral shape along the barrel wall.
7. The drum sieve as claimed in claim 1, wherein: Ladders (7) for climbing are arranged on both sides of the inspection platform.