Warm mixing fine grain type asphalt mixture noise reduction screening device

Abstract

The utility model discloses a warm mixing fine grain type asphalt mixture noise reduction screening device which comprises an equipment shell, a cavity is formed in the equipment shell, a feeding hopper is fixedly connected to the middle of the upper end of the equipment shell, a screening mechanism is installed in the cavity, a discharging pipe is fixedly connected to the side end of the equipment shell, and the discharging pipe is fixedly connected to the lower end of the equipment shell. A second motor is fixedly connected to the lower end of the middle of the screening mechanism, and four shock absorbers are fixedly connected to the bottom of the equipment shell at equal intervals. And the screening mechanism comprises a second screen, an electric cylinder, a supporting frame and a material turning paddle, the supporting frame is fixedly connected to the side wall of the cavity, the electric cylinder is fixedly connected to the upper end of the supporting frame, and the second screen is fixedly connected to the upper end of the electric cylinder. And a second motor drives a material turning paddle to rotate so that the mixture on the surface of the second screen can be turned up, the screening effect of the device on the mixture is improved, and the screened unqualified mixture can be conveniently discharged out of the device through a discharging pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt processing, in particular to a warm mix fine-grained asphalt mixture noise reduction screening device. Background Art

[0002] Asphalt is a dark brown complex mixture of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid, mostly in the form of liquid or semi-solid petroleum. It has a black surface and is soluble in carbon disulfide and carbon tetrachloride. Asphalt is an organic gelling material that is waterproof, moisture-proof and anti-corrosive. Asphalt can be mainly divided into three types: coal tar asphalt, petroleum asphalt and natural asphalt. Among them, coal tar asphalt is a by-product of coking. Through certain technical measures, asphalt can be mixed and constructed at a relatively low temperature, while maintaining its performance not lower than that of HMA. Asphalt mixture technology is also called warm mix asphalt technology.

[0003] Patent application number "CN202020023394.3", patent name "A noise reduction and screening device for warm mix fine-grained asphalt mixture", includes an overall device, a screening mechanism, a noise reduction component and a power cord. The outer side of the overall device is fixedly connected to the noise reduction component, the other end of the overall device is embedded in the bottom and connected to the power cord, the bottom end of the noise reduction component is fixedly connected to a support leg, the middle part of the inner wall of the noise reduction component is embedded in a through-hole layer, and the screening mechanism is fixedly connected to the middle position inside the overall device.

[0004] After screening the asphalt mixture, the above-mentioned device controls the driving motor to rotate counterclockwise through the controller, so that the remaining asphalt mixture is transmitted out through the spiral screen plate, and the inside of the screening mechanism can be cleaned. However, the mixture discharged by the spiral screen plate will enter the feed hopper and cannot be directly discharged from the device. It needs to be cleaned manually using tools, and the cleaning effect is poor. Utility Model Content

[0005] The utility model aims to provide a warm mix fine-grained asphalt mixture noise reduction screening device, which can automatically discharge the screened asphalt mixture from the device and improve the screening effect of the mixture.

[0006] In order to achieve the above-mentioned purpose, a noise reduction screening device for warm mix fine-grained asphalt mixture is provided, comprising: an equipment housing, a chamber is provided in the equipment housing, and the chamber penetrates the equipment housing downward, a feed hopper is fixedly connected to the middle part of the upper end of the equipment housing, and the feed hopper is communicated with the chamber, a screening mechanism is installed in the chamber, a discharge pipe is fixedly connected to the side end of the equipment housing, and the discharge pipe is communicated with the chamber and is located in the middle part of the screening mechanism, a second motor is fixedly connected to the lower middle end of the screening mechanism, and four shock absorbers are fixedly connected to the bottom of the equipment housing at equal intervals; the screening mechanism comprises a second screen, an electric Cylinder, support frame, tipping paddle, the support frame is fixedly connected to the side wall of the chamber, and a circular channel is opened in the middle of the support frame, the electric cylinder is fixedly connected to the upper end of the support frame, the second screen is fixedly connected to the upper end of the electric cylinder, and the outer end of the second screen is slidably connected to the side wall of the chamber, the tipping paddle is located at the upper end of the second screen, and the lower end of the tipping paddle is rotatably connected to the upper end of the second screen, the second motor is fixedly connected to the middle of the lower end of the second screen, and the output end of the second motor passes through the second screen, the output end of the second motor is fixedly connected to the rotating shaft of the tipping paddle, and the discharge pipe is located at the lower end of the second screen. The screened asphalt mixture can be automatically discharged from the device to improve the screening effect of the mixture.

[0007] According to the noise reduction screening device for warm mix fine-grained asphalt mixture, the inner wall of the chamber is slidably connected with a first screen, and the first screen is located below the screening mechanism, the lower end of the first screen is fixedly connected with a plurality of springs, the lower end of the spring is fixedly connected with a fixed plate, and the fixed plate is fixedly connected to the side wall of the chamber, so as to further screen the asphalt mixture and improve the screening effect.

[0008] According to the warm mix fine-grained asphalt mixture noise reduction screening device, a screw rod is provided in the middle of the chamber and is located below the first screen, and both ends of the screw rod are rotatably connected to the device housing, a first motor is fixedly connected to the side end of the device housing, and the output end of the first motor is fixedly connected to the screw rod, a cam is fixedly connected to the surface of the screw rod, and the screw rod passes through the cam, and the outer end of the cam contacts the lower end of the first screen, so that the first screen can move up and down, causing the asphalt mixture on its surface to shake, thereby improving the screening effect.

[0009] According to the noise reduction screening device for warm-mix fine-grained asphalt mixture, the channel height of the discharge pipe is lower than the piston rod length of the electric cylinder, so as to ensure that the screened mixture can be completely discharged.

[0010] According to the warm mix fine-grained asphalt mixture noise reduction screening device, the paddle of the turning paddle is tilted, and the tilting direction of the turning paddle is the same as the rotation direction of the second motor, so that the asphalt mixture on the surface of the second screen can be turned up, thereby improving the screening effect.

[0011] The above scheme has the beneficial effect of: the second motor drives the turning paddle to turn over the mixture on the surface of the second screen, thereby improving the screening effect of the device on the mixture, and the unqualified mixture screened out of the device is conveniently discharged through the discharge pipe.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 This is a three-dimensional structural diagram of a warm mix fine-grained asphalt mixture noise reduction screening device of the utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of a warm mix fine-grained asphalt mixture noise reduction screening device of the utility model;

[0016] Figure 3 It is a three-dimensional structural diagram of a screening mechanism of a warm mix fine-grained asphalt mixture noise reduction screening device of the utility model;

[0017] Figure 4 for Figure 2 The enlarged structure diagram at A in the middle;

[0018] Figure 5 The utility model is a bottom view of the first screen of a noise reduction screening device for warm mix fine-grained asphalt mixture.

[0019] Legend:

[0020] 1. Feed hopper; 2. Equipment housing; 3. Shock absorber; 4. First motor; 5. Discharge pipe; 6. Screening mechanism; 7. Chamber; 8. First screen; 9. Screw rod; 10. Second motor; 11. Second screen; 12. Electric cylinder; 13. Support frame; 14. Turning paddle; 15. Cam; 16. Fixed plate; 17. Spring. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-5The utility model embodiment is a warm mix fine-grained asphalt mixture noise reduction screening device, which includes: an equipment housing 2, a chamber 7 is opened in the equipment housing 2, and the chamber 7 penetrates the equipment housing 2 downward, a feed hopper 1 is fixedly connected to the middle of the upper end of the equipment housing 2, and the feed hopper 1 is communicated with the chamber 7, a screening mechanism 6 is installed in the chamber 7, a discharge pipe 5 is fixedly connected to the side end of the equipment housing 2, and the discharge pipe 5 is communicated with the chamber 7 and is located in the middle of the screening mechanism 6, a second motor 10 is fixedly connected to the lower end of the middle of the screening mechanism 6, and four shock absorbers 3 are fixedly connected to the bottom of the equipment housing 2 at equal intervals; the screening mechanism 6 includes a second screen 11, an electric cylinder 12, a support frame 13, The material-turning paddle 14 and the support frame 13 are fixedly connected to the side wall of the chamber 7, and a circular channel is opened in the middle of the support frame 13, the electric cylinder 12 is fixedly connected to the upper end of the support frame 13, the second screen 11 is fixedly connected to the upper end of the electric cylinder 12, and the outer end of the second screen 11 is slidingly connected to the side wall of the chamber 7, the material-turning paddle 14 is located at the upper end of the second screen 11, and the lower end of the material-turning paddle 14 is rotatably connected to the upper end of the second screen 11, the second motor 10 is fixedly connected to the middle of the lower end of the second screen 11, and the output end of the second motor 10 passes through the second screen 11, the output end of the second motor 10 is fixedly connected to the rotating shaft of the material-turning paddle 14, and the discharge pipe 5 is located at the lower end of the second screen 11.

[0023] A first screen 8 is slidably connected to the inner wall of the chamber 7 and is located below the screening mechanism 6 . A plurality of springs 17 are fixedly connected to the lower end of the first screen 8 . A fixing plate 16 is fixedly connected to the lower end of the spring 17 and the fixing plate 16 is fixedly connected to the side wall of the chamber 7 .

[0024] A screw rod 9 is provided in the middle of the chamber 7 and is located below the first screen 8, and both ends of the screw rod 9 are rotatably connected to the device housing 2 respectively, a first motor 4 is fixedly connected to the side end of the device housing 2, and the output end of the first motor 4 is fixedly connected to the screw rod 9, a cam 15 is fixedly connected to the surface of the screw rod 9, and the screw rod 9 passes through the cam 15, and the outer end of the cam 15 contacts the lower end of the first screen 8.

[0025] The channel height of the discharge pipe 5 is lower than the piston rod length of the electric cylinder 12 .

[0026] The blades of the turning paddle 14 are arranged to be tilted, and the tilting direction of the turning paddle 14 is the same as the rotation direction of the second motor 10 .

[0027] Working principle: When in use, the asphalt mixture enters the device through the feed hopper 1 and falls on the surface of the second screen 11. The second motor 10 drives the turning paddle 14 to rotate, and the asphalt mixture on the surface of the second screen 11 is turned over. The asphalt mixture passing through the second screen 11 falls on the surface of the first screen 8. At the same time, the first motor 4 drives the screw rod 9 to rotate, and the cam 15 cooperates with the spring 17 to make the first screen 8 move up and down, so as to screen the asphalt mixture for the second time, and the screened asphalt mixture is discharged. When cleaning the second screen 11, the piston rod of the electric cylinder 12 is retracted, driving the second screen 11 to descend, so that the inner wall of the discharge pipe 5 is located at the upper end of the second screen 11, and at the same time, the second motor 10 drives the turning paddle 14 to rotate in the opposite direction to discharge the asphalt mixture screened on the surface of the second screen 11.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A noise reduction screening device for warm mix fine-grained asphalt mixture, comprising: The device housing (2) is characterized in that a chamber (7) is provided in the device housing (2), and the chamber (7) penetrates downwardly through the device housing (2); a feed hopper (1) is fixedly connected to the middle of the upper end of the device housing (2), and the feed hopper (1) is communicated with the chamber (7); a screening mechanism (6) is installed in the chamber (7); a discharge pipe (5) is fixedly connected to the side end of the device housing (2), and the discharge pipe (5) is communicated with the chamber (7) and is located in the middle of the screening mechanism (6); a second motor (10) is fixedly connected to the lower end of the middle of the screening mechanism (6); and four shock absorbers (3) are fixedly connected to the bottom of the device housing (2) at equal intervals; the screening mechanism (6) comprises a second screen (11), an electric cylinder (12), a support frame (13), and a turning paddle (14); the support frame (13) is connected to the second motor (10), and the second motor (10) is connected to the second motor (10) at the lower end of the middle of the screening mechanism (6); and the bottom of the device housing (2) is fixedly connected to four shock absorbers (3) at equal intervals; the screening mechanism (6) comprises a second screen (11), an electric cylinder (12), a support frame (13), and a turning paddle (14); The support frame (13) is fixedly connected to the side wall of the chamber (7), and a circular channel is opened in the middle of the support frame (13); the electric cylinder (12) is fixedly connected to the upper end of the support frame (13); the second screen (11) is fixedly connected to the upper end of the electric cylinder (12), and the outer end of the second screen (11) is slidably connected to the side wall of the chamber (7); the tipping paddle (14) is located at the upper end of the second screen (11), and the lower end of the tipping paddle (14) is rotatably connected to the upper end of the second screen (11); the second motor (10) is fixedly connected to the middle of the lower end of the second screen (11), and the output end of the second motor (10) passes through the second screen (11); the output end of the second motor (10) is fixedly connected to the rotating shaft of the tipping paddle (14); and the discharge pipe (5) is located at the lower end of the second screen (11).

2. A noise reduction screening device for warm mix fine-grained asphalt mixture according to claim 1, characterized in that: A first screen (8) is slidably connected to the inner wall of the chamber (7), and the first screen (8) is located below the screening mechanism (6). A plurality of springs (17) are fixedly connected to the lower end of the first screen (8), and a fixing plate (16) is fixedly connected to the lower end of the spring (17), and the fixing plate (16) is fixedly connected to the side wall of the chamber (7).

3. The noise reduction screening device for warm mix fine-grained asphalt mixture according to claim 1, characterized in that: A screw rod (9) is provided in the middle of the chamber (7) and is located below the first screen (8), and both ends of the screw rod (9) are rotatably connected to the device housing (2), a first motor (4) is fixedly connected to the side end of the device housing (2), and an output end of the first motor (4) is fixedly connected to the screw rod (9), a cam (15) is fixedly connected to the surface of the screw rod (9), and the screw rod (9) passes through the cam (15), and the outer end of the cam (15) contacts the lower end of the first screen (8).

4. A noise reduction screening device for warm mix fine-grained asphalt mixture according to claim 1, characterized in that: The channel height of the discharge pipe (5) is lower than the piston rod length of the electric cylinder (12).

5. The noise reduction screening device for warm mix fine-grained asphalt mixture according to claim 1, characterized in that: The blades of the material turning paddle (14) are arranged tilted, and the tilting direction of the material turning paddle (14) is the same as the rotation direction of the second motor (10).

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