Premixed-reinforced environment-friendly asphalt mixture preparation device

Abstract

The utility model discloses a premixed-reinforced environment-friendly asphalt mixture preparation device which comprises an asphalt mixture stirring equipment main body which comprises a discharge port, and an asphalt gas collecting component arranged at the discharge port, the asphalt gas collecting part comprises a gas collecting hood arranged in the peripheral direction of the discharging port, the upper end of the gas collecting hood is communicated with a negative pressure assembly, the negative pressure assembly comprises a negative pressure pipeline, the lower end opening of the negative pressure pipeline is communicated with the upper end face of the gas collecting hood, and the upper end opening of the negative pressure pipeline is communicated with a gas outlet header pipe. The asphalt gas collecting component is arranged at the discharge port of the asphalt mixture stirring equipment and comprises the gas collecting hood arranged in the peripheral direction of the discharge port, and the upper end of the gas collecting hood is communicated with the negative pressure assembly, so that asphalt gas can be conveyed to the gas outlet header pipe through the gas collecting hood; asphalt gas is collected, the situation that the asphalt gas leaks into outside air is reduced, and the device has the advantages of being environmentally friendly and reducing harm to the human body.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt mixture production equipment, and in particular relates to a premixed and enhanced environment-friendly asphalt mixture preparation device. Background Art

[0002] As the preparation and construction of asphalt mixture occupies a large area, the asphalt mixture is mostly not prepared on site when paving asphalt pavement. Therefore, the asphalt mixture needs to be pre-mixed and prepared at the asphalt mixture production site, and then transported to the construction site by an asphalt mixture transport vehicle. The asphalt mixture mixing equipment is used to pre-mix the asphalt mixture. When the asphalt mixture mixing equipment is working, it can mix and stir the heated asphalt and a certain proportion of coarse aggregate, fine aggregate, mineral powder, etc. After the mixing is completed, the prepared asphalt mixture is loaded and unloaded onto the asphalt mixture transport vehicle through the discharge port.

[0003] It is found in actual operation that when the asphalt mixture is loaded and unloaded onto the asphalt mixture transport vehicle through the discharge port, a large amount of asphalt gas will be generated at the discharge port during loading and unloading because the asphalt mixture has a certain high temperature. The asphalt gas is mixed with a large amount of particulate matter. The asphalt gas contains more sulfur dioxide, which is a colorless and irritating gas. The main source of sulfur dioxide is the sulfide in the asphalt. During the production process, these sulfides will be heated and decomposed to release sulfur dioxide. Sulfur dioxide is very harmful to the environment and human health, and the particulate matter and tar mist particles therein will also pollute the environment. Therefore, it is necessary to set an asphalt gas collection device at the discharge port of the asphalt mixture mixing equipment to reduce the leakage of asphalt gas.

[0004] Based on the deficiencies in the prior art, the utility model discloses a premixed and enhanced environmentally friendly asphalt mixture preparation device, in which an asphalt gas collecting component is arranged at the discharge port of the asphalt mixture stirring equipment. The asphalt gas collecting component includes an air collecting hood arranged along the outer circumference of the discharge port. The upper end of the air collecting hood is connected to a negative pressure component, so that the asphalt gas can be transported to the gas outlet main pipe through the air collecting hood, thereby collecting the asphalt gas and reducing the leakage of the asphalt gas to the outside air. The device has the advantages of being environmentally friendly and reducing harm to the human body. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a premixed and enhanced environmentally friendly asphalt mixture preparation device to solve the technical problems raised in the background technology.

[0006] The utility model provides the following technical solutions:

[0007] A premixed and enhanced environmentally friendly asphalt mixture preparation device includes an asphalt mixture mixing equipment body, the asphalt mixture mixing equipment body includes a discharge port, and also includes an asphalt gas collecting component arranged at the discharge port, the asphalt gas collecting component includes an air collecting hood arranged along the outer circumference of the discharge port, the upper end of the air collecting hood is connected to a negative pressure component, the negative pressure component includes a negative pressure pipe, the lower port of the negative pressure pipe is connected to the upper end surface of the air collecting hood, and the upper port of the negative pressure pipe is connected to an air outlet main pipe.

[0008] Preferably, the asphalt mixture mixing equipment body is arranged on a high platform, a discharge valve is arranged at the lower end of the discharge port, and an asphalt mixture transport vehicle is placed directly below the discharge port.

[0009] Preferably, the output end of the gas outlet main pipe is connected to the input end of the asphalt gas processing equipment.

[0010] Preferably, a negative pressure impeller and a motor for driving the negative pressure impeller are provided inside the negative pressure pipe, the motor is connected to the inner wall of the negative pressure pipe through a connecting rod, a transmission rod is coaxially provided on the rotating shaft of the motor, and the negative pressure impeller is coaxially provided on the transmission rod.

[0011] Preferably, a protective plate is horizontally arranged at the inner lower end of the negative pressure pipe, the outer ring of the protective plate is connected to the inner wall of the negative pressure pipe, a plurality of through holes penetrating upward and downward are arranged on the protective plate, the lower end of the transmission rod is coaxially connected to the protective plate through a bearing, and a first scraper is horizontally arranged at the lower end of the transmission rod, the first scraper is located below the protective plate, and the upper end of the first scraper is in contact with the lower end surface of the protective plate.

[0012] Preferably, a second scraper is horizontally arranged at the lower end of the transmission rod, the second scraper is located above the protective plate, and the lower end of the second scraper is in contact with the upper end surface of the protective plate.

[0013] Preferably, the gas collecting hood is annular, and the inner ring of the gas collecting hood is connected to the outer side surface of the discharge port through a connecting plate.

[0014] Preferably, the outer side surface of the gas collecting hood is in the shape of a truncated cone.

[0015] Preferably, a plurality of partitions are arranged inside the gas collecting hood, and the partitions are arranged perpendicular to the inner wall of the gas collecting hood.

[0016] Preferably, a plurality of the partitions are arranged in sequence at equal intervals along the circumference of the gas collecting hood, and the plurality of the partitions divide the interior of the gas collecting hood into a plurality of gas collecting grooves.

[0017] Preferably, the number of the negative pressure components is the same as the number of the gas collecting tanks, and they are arranged in one-to-one correspondence, and the upper ports of several of the negative pressure pipes are respectively connected to the gas outlet main pipe.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a premixed and enhanced environment-friendly asphalt mixture preparation device. An asphalt gas collecting component is arranged at the discharge port of the asphalt mixture stirring equipment. The asphalt gas collecting component includes an air collecting hood arranged along the outer circumference of the discharge port. The upper end of the air collecting hood is connected to a negative pressure component, so that the asphalt gas can be transported to the gas outlet main pipe through the air collecting hood, thereby collecting the asphalt gas and reducing the leakage of the asphalt gas to the outside air. The device has the advantages of being environmentally friendly and reducing harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the installation position of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the utility model.

[0023] Figure 3 For this utility model Figure 2 A local enlarged schematic diagram of point A.

[0024] Figure 4 It is a schematic diagram of the structure of the gas collecting hood of the utility model.

[0025] Figure 5 This is a schematic diagram of the position distribution of the negative pressure components of the present utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-5 As shown, a premixed-enhanced environmentally friendly asphalt mixture preparation device includes an asphalt mixture mixing equipment body 1, the asphalt mixture mixing equipment body 1 includes a discharge port 2, and also includes an asphalt gas collecting component 3 arranged at the discharge port 2, the asphalt gas collecting component 3 includes a gas collecting hood 4 arranged along the outer circumference of the discharge port 2, the upper end of the gas collecting hood 4 is connected to a negative pressure component 5, the negative pressure component 5 includes a negative pressure pipeline 51, the lower port of the negative pressure pipeline 51 is connected to the upper end surface of the gas collecting hood 4, and the upper port of the negative pressure pipeline 51 is connected to a gas outlet main pipe 6. The output end of the gas outlet main pipe is connected to the input end of the asphalt gas processing equipment. Asphalt gas processing equipment belongs to the prior art and will not be elaborated here; by arranging an asphalt gas collecting component at the discharge port of the asphalt mixture mixing equipment, the asphalt gas collecting component includes a gas collecting hood arranged along the outer circumference of the discharge port, and the upper end of the gas collecting hood is connected to a negative pressure component. Through the operation of the negative pressure component, the asphalt gas can be transported to the gas outlet main pipe through the gas collecting hood, and the asphalt gas in the gas outlet main pipe finally enters the asphalt gas processing equipment to purify the asphalt gas. The utility model can realize the collection of asphalt gas and reduce the leakage of asphalt gas to the outside air, which has the advantages of environmental protection and reduced harm to the human body.

[0029] The asphalt mixture mixing equipment body 1 is arranged on a high platform, a discharge valve is arranged at the lower end of the discharge port 2, and an asphalt mixture transport vehicle is placed directly below the discharge port 2.

[0030] The negative pressure pipe 51 is provided with a negative pressure impeller 52 and a motor 53 for driving the negative pressure impeller 52. The motor 53 is connected to the inner wall of the negative pressure pipe 51 through a connecting rod 55. A transmission rod 56 is coaxially provided on the rotating shaft of the motor 53, and the negative pressure impeller 52 is coaxially provided on the transmission rod 56. The operation of the motor 53 can drive the rotation of the negative pressure impeller 52, so that negative pressure is generated at the lower end of the negative pressure pipe 51, and negative pressure is generated inside the gas collecting hood, so that the asphalt gas near the gas collecting hood is sucked into the gas collecting hood and enters the gas outlet main pipe 6 through the negative pressure pipe 51.

[0031] A protective plate 57 is also horizontally arranged at the lower end of the inner part of the negative pressure pipe 51, and the outer ring of the protective plate 57 is connected to the inner wall of the negative pressure pipe 51. The protective plate 57 is provided with a plurality of through holes 7 penetrating from top to bottom. The lower end of the transmission rod 56 is coaxially connected to the protective plate 57 through a bearing, and a first scraper 58 is also horizontally arranged at the lower end of the transmission rod 56. The first scraper is located below the protective plate, and the upper end of the first scraper 58 is in contact with the lower end surface of the protective plate 57. Large foreign objects are prevented from hitting the negative pressure impeller 52 and causing damage to the negative pressure impeller 52. The setting of the first scraper 58 can clean the lower end surface of the protective plate 57 and reduce the blockage of the through hole 7 by particles in the asphalt gas.

[0032] A second scraper 59 is also horizontally disposed at the lower end of the transmission rod 56. The second scraper 59 is located above the protective plate, and the lower end of the second scraper 59 contacts the upper end surface of the protective plate 57. The second scraper 59 can clean the upper end surface of the protective plate 57, further reducing the blockage of the through hole 7 by particles in the asphalt gas.

[0033] The gas collecting hood 4 is annular, and the inner ring of the gas collecting hood 4 is connected to the outer side surface of the discharge port 2 through a connecting plate.

[0034] The outer side of the gas collecting hood 4 is in a truncated cone shape. The area of ​​the lower port of the gas collecting hood 4 is increased to facilitate more asphalt gas to enter the gas collecting hood. The asphalt gas is in an upward floating state at high temperature.

[0035] A plurality of partitions 8 are arranged inside the gas collecting hood 4, and the partitions 8 are arranged perpendicular to the inner wall of the gas collecting hood 4. The plurality of partitions 8 are arranged in sequence at equal intervals along the circumference of the gas collecting hood 4, and the plurality of partitions 8 divide the interior of the gas collecting hood 4 into a plurality of gas collecting grooves. The number of the negative pressure components 5 is the same as the number of the gas collecting grooves, and they are arranged one by one, and the upper ports of the plurality of negative pressure pipes 51 are respectively connected to the gas outlet main pipe 6. By increasing the number of negative pressure components 5, the effect of absorbing asphalt gas by each gas collecting groove inside the gas collecting hood 4 is further improved.

[0036] The above is only a preferred implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A premixed and enhanced environmentally friendly asphalt mixture preparation device, comprising an asphalt mixture mixing equipment body (1), wherein the asphalt mixture mixing equipment body (1) comprises a discharge port (2), characterized in that: It also includes an asphalt gas collecting component (3) arranged at the discharge port (2), the asphalt gas collecting component (3) including an air collecting hood (4) arranged along the outer circumference of the discharge port (2), the upper end of the air collecting hood (4) being connected to a negative pressure component (5), the negative pressure component (5) including a negative pressure pipeline (51), the lower end of the negative pressure pipeline (51) being connected to the upper end surface of the air collecting hood (4), and the upper end of the negative pressure pipeline (51) being connected to a gas outlet main pipe (6).

2. The device for preparing a premixed and enhanced environmentally friendly asphalt mixture according to claim 1, characterized in that: A negative pressure impeller (52) and a motor (53) for driving the negative pressure impeller (52) are arranged inside the negative pressure pipe (51); the motor (53) is connected to the inner wall of the negative pressure pipe (51) via a connecting rod (55); a transmission rod (56) is coaxially arranged on the rotating shaft of the motor (53); and the negative pressure impeller (52) is coaxially arranged on the transmission rod (56).

3. The device for preparing a premixed and enhanced environmentally friendly asphalt mixture according to claim 2, characterized in that: The gas collecting hood (4) is annular, and the inner ring of the gas collecting hood (4) is connected to the outer side surface of the discharge port (2) via a connecting plate.

4. The device for preparing a premixed and enhanced environmentally friendly asphalt mixture according to claim 3, characterized in that: The outer side surface of the gas collecting hood (4) is in the shape of a truncated cone.

5. The device for preparing a premixed and enhanced environment-friendly asphalt mixture according to claim 4, characterized in that: A plurality of partitions (8) are arranged inside the gas collecting hood (4), and the partitions (8) are arranged perpendicular to the inner wall of the gas collecting hood (4).

6. The device for preparing a premixed and enhanced environment-friendly asphalt mixture according to claim 5, characterized in that: A plurality of the partitions (8) are arranged in sequence at equal intervals along the circumference of the gas collecting hood (4), and the plurality of the partitions (8) divide the interior of the gas collecting hood (4) into a plurality of gas collecting grooves.

7. A premixed and enhanced environment-friendly asphalt mixture preparation device according to claim 6, characterized in that: The number of the negative pressure components (5) is the same as the number of the gas collecting tanks, and they are arranged in a one-to-one correspondence, and the upper ports of a plurality of the negative pressure pipes (51) are respectively connected to the gas outlet main pipe (6).

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