Modified asphalt production filtering device

Abstract

The utility model discloses a modified asphalt production filtering device, and relates to the technical field of asphalt production. The filter comprises a filter cartridge, the bottom of the filter cartridge is conical, one side of the filter cartridge is communicated with an overflow pipe, and a first filter screen is fixedly arranged in the filter cartridge and located below the overflow pipe; the mounting cylinder is fixedly embedded in the middle of the interior of the filter cylinder, the bottom of the mounting cylinder is communicated with a blanking pipe, strip-shaped holes are formed in the position, located below the first filter screen, of the surface of the mounting cylinder in an annular array mode, a hydraulic cylinder is mounted in the middle of the top of the filter cylinder, and the piston end of the hydraulic cylinder is connected with a sliding plug. Asphalt is layered in advance by utilizing gravity before being filtered, impurities passing through the first filter screen are effectively reduced, so that the filtering efficiency is improved, the blockage of the filter screen is reduced, the filter screen does not need to be frequently cleaned or replaced due to the fact that the impurities passing through the first filter screen are reduced, and the maintenance requirement and the operation cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt production equipment, and particularly relates to a modified asphalt production filtering device. Background Art

[0002] Modified asphalt is widely used due to its excellent high-temperature stability and anti-aging performance. In the production process of modified asphalt, filtration is an essential link to remove impurities in the asphalt and ensure the quality of the final product.

[0003] The Chinese utility model patent with the publication number CN216062176U proposes a basic asphalt filtering device in the production of modified asphalt, including an installation box and a scraping component; Installation box: A control switch group is installed on the front side, a fixed frame is fixed inside the installation box, a filter screen is fixed inside the fixed frame, a moving component is installed on the right side of the fixed frame, and an anti-blocking component is installed on the lower side of the fixed frame; Scraping component: Comprising a fixed strip, a scraper and a threaded rod, the fixed strip is fixed on the upper side of the fixed frame, a threaded hole is opened at the rear side edge of the scraper, the threaded rod is threadedly connected inside the threaded hole, the left end of the threaded rod is rotatably connected to the left side inside the installation box, and the right end of the threaded rod is rotatably connected to the left side of the fixed strip, and the residue on the upper side of the filter screen is cleaned by setting the scraping component.

[0004] The above device captures solid particles and other insoluble substances in the asphalt by setting a filter screen and uses a scraping component to clean the residue on the filter screen, but there are the following problems in actual application:

[0005] First, high-viscosity asphalt is likely to adhere to the scraping component. Over time, this will reduce the scraping efficiency and increase the load of the equipment;

[0006] Second, the adhered asphalt may harden, making the cleaning work of the scraping component more difficult and requiring shutdown for more thorough cleaning, thus affecting the efficiency of the entire production line.

[0007] Therefore, we propose a modified asphalt production filtering device to solve the above problems. Content of the Utility Model

[0008] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0009] A modified asphalt production filtering device, including:

[0010] A filter cylinder, the bottom of the filter cylinder is conical, one side of the filter cylinder is communicated with an overflow pipe, and a first filter screen is fixedly arranged below the overflow pipe inside the filter cylinder;

[0011] The installation cylinder is fixedly embedded in the middle inside the filter cylinder. A blanking pipe is connected to the bottom of the installation cylinder. Strip-shaped holes are annularly arranged on the surface of the installation cylinder below the first filter screen. A hydraulic cylinder is installed in the middle of the top of the filter cylinder. The piston end of the hydraulic cylinder is connected with a sliding plug, and the sliding plug is slidably connected with the cylinder wall of the installation cylinder. A feed pipe is connected and communicated on one side of the surface of the installation cylinder below the first filter screen;

[0012] A collection tank and a separation member. The collection tank is arranged below the filter cylinder. Support legs are connected between the upper edge of the collection tank and the bottom of the filter cylinder. The separation member is arranged inside the collection tank and is used to separate asphalt and impurities.

[0013] Further, a one-way valve is installed on the pipe body of the feed pipe.

[0014] Further, a U-shaped pipe is arranged on one side of the top of the filter cylinder. One end of the U-shaped pipe is connected and communicated with the filter cylinder, and the other end is connected and communicated with the installation cylinder. An air exchange pipe is connected and communicated upward in the middle of the U-shaped pipe.

[0015] Further, liquid channels are annularly arranged on the surface of the sliding plug, and the liquid channels are conical.

[0016] Further, the separation member includes a triangular block fixedly arranged on the inner bottom wall of the collection tank. A second filter screen is obliquely arranged between the top of the triangular block and the upper edge of the collection tank, and the second filter screen is located below the blanking pipe.

[0017] Further, a discharge pipe is connected and communicated at the bottom of one side of the collection tank close to the second filter screen, and a rectangular channel is formed at the bottom of the other side of the collection tank away from the second filter screen.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The present utility model uses gravity to pre-stratify asphalt before filtration, effectively reducing the impurities passing through the first filter screen, thereby improving the filtration efficiency and reducing the blockage of the filter screen. Since the impurities passing through the first filter screen are reduced, it is not necessary to clean or replace the filter screen frequently, reducing the maintenance requirements and operation costs.

[0020] The present utility model has a high degree of automation. By controlling the movement of the sliding plug through the hydraulic cylinder, an automatic filtration and filter screen cleaning process is realized, reducing the labor intensity of workers and improving the production efficiency. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 It is another three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 3 It is a top view schematic diagram of the present utility model;

[0024] Figure 4 is the present utility model Figure 3 A cross-sectional schematic diagram in the A-A direction in it.

[0025] Reference numerals: 1, filter cylinder; 2, overflow pipe; 3, first filter screen; 4, installation cylinder; 401, strip-shaped hole; 5, blanking pipe; 6, hydraulic cylinder; 7, sliding plug; 701, liquid passage; 8, feed pipe; 801, check valve; 9, collection tank; 901, discharge pipe; 902, rectangular passage; 10, separation member; 1001, triangular block; 1002, second filter screen; 11, C-shaped pipe; 1101, air exchange pipe. Specific embodiments

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0027] This application provides a modified asphalt production filtering device, which is mainly used to solve the problem that in the prior art, high-viscosity asphalt is likely to adhere to the scraping component. Over time, this will reduce the scraping efficiency and increase the load of the equipment; the adhered asphalt may harden, making the cleaning work of the scraping component more difficult and requiring shutdown for more thorough cleaning, thus affecting the efficiency of the entire production line.

[0028] of the problem, and provides the following technical solutions, which will be described in detail below in combination with Figures 1-4 for a detailed description:

[0029] A modified asphalt production filtering device includes: a filter cylinder 1, the bottom of the filter cylinder 1 is conical, one side of the filter cylinder 1 is communicated with an overflow pipe 2, and a first filter screen 3 is fixedly arranged below the overflow pipe 2 inside the filter cylinder 1;

[0030] An installation cylinder 4, fixedly embedded in the middle inside the filter cylinder 1, the bottom of the installation cylinder 4 is communicated with a blanking pipe 5, strip-shaped holes 401 are annularly arranged on the surface of the installation cylinder 4 below the first filter screen 3, a hydraulic cylinder 6 is installed in the middle of the top of the filter cylinder 1, the piston end of the hydraulic cylinder 6 is connected with a sliding plug 7, the sliding plug 7 is slidably connected with the cylinder wall of the installation cylinder 4, and a feed pipe 8 is communicated on one side of the surface of the installation cylinder 4 below the first filter screen 3;

[0031] A collection tank 9 and a separation member 10, the collection tank 9 is arranged below the filter cylinder 1, support legs are connected between the upper edge of the collection tank 9 and the bottom of the filter cylinder 1, the separation member 10 is arranged inside the collection tank 9, and it is used to separate asphalt and impurities.

[0032] Principle and process description:

[0033] During use, a certain amount of modified asphalt to be processed is input into the installation cylinder 4 through the feed pipe 8 and enters the installation cylinder 4 through the strip-shaped holes 401. Since solid particles and insoluble substances are heavier, they will deposit, forming a layering phenomenon, that is, the asphalt in the upper layer contains fewer impurities, and the asphalt at the bottom contains more impurities. When the asphalt liquid level is about to approach the first filter screen, the hydraulic cylinder 6 is started at this time, driving the sliding plug 7 to move downward. As the sliding plug 7 moves downward, the asphalt liquid level continues to rise. When passing through the first filter screen 3, a very small amount of solid particles and insoluble substances are captured, and the purified asphalt continues to rise to the overflow pipe 2, and then flows out of the filter cylinder 1 for the next treatment or storage. Then, the hydraulic cylinder 6 drives the sliding plug 7 to reset, and the asphalt liquid level in the filter cylinder 1 drops. Repeat the above operations until all the asphalt filtering work is completed. At this time, the asphalt at the bottom of the filter cylinder 1 contains a large amount of impurities. Open the valve of the blanking pipe 5, and the asphalt containing a large amount of impurities falls into the collection tank 9. The separating member 10 further separates the asphalt from the impurities. After the asphalt filtering is completed, clean water can be introduced into the filter cylinder 1 through the feed pipe 8, and the hydraulic cylinder 6 is started to make the sliding plug 7 slide up and down in the installation cylinder 4. The movement of the sliding plug 7 generates liquid flow, which helps to wash away the residues accumulated on the first filter screen 3.

[0034] As Figure 4 shown, in some embodiments, a one-way valve 801 is installed on the pipe body of the feed pipe 8. More specifically, during the process of the hydraulic cylinder 6 driving the sliding plug 7 to move downward, the one-way valve 801 ensures that the asphalt will not flow back from the feed pipe 8 to the external container or pipeline, but can only continue to pass forward through the filter cylinder 1 for filtering treatment.

[0035] As Figure 1 shown, in some embodiments, a U-shaped pipe 11 is provided on one side of the top of the filter cylinder 1. One end of the U-shaped pipe 11 is connected to the filter cylinder 1, and the other end is connected to the installation cylinder 4. A gas exchange pipe 1101 is connected upward in the middle of the U-shaped pipe 11. More specifically, as the sliding plug 7 moves, the gas volume in the filter cylinder 1 will change. The gas exchange pipe 1101 allows external gas to enter or internal gas to discharge to adapt to this volume change, so as to maintain stable air pressure, so that a negative pressure environment will not be formed in the filter cylinder 1, and the sliding plug 7 can move up and down easily.

[0036] As Figure 4 shown, in some embodiments, liquid channels 701 are annularly and arrayedly formed on the surface of the sliding plug 7. The liquid channels 701 are conical. More specifically, by providing the liquid channels 701, the sliding plug 7 can slide to the bottom of the installation cylinder 4. The liquid channels 701 are conical, with a large upper port and a small lower port, which can prevent the asphalt from easily accumulating on the sliding plug 7 after the sliding plug 7 rises to a high position.

[0037] AsFigure 4 As shown, in some embodiments, the separating member 10 includes a triangular block 1001 fixedly provided on the inner bottom wall of the collection tank 9. A second filter screen 1002 is inclined between the top of the triangular block 1001 and the upper edge of the collection tank 9. The second filter screen 1002 is located below the blanking pipe 5. More specifically, the second filter screen 1002 is located below the blanking pipe 5, and its main function is to separate impurities from the asphalt. After separation, the asphalt falls from the second filter screen 1002 to one side of the triangular block 1001, while the impurities fall to the other side of the triangular block 1001, thereby realizing the separation of the asphalt and the impurities.

[0038] As Figure 4 As shown, in some embodiments, a discharge pipe 901 is connected to the bottom of one side of the collection tank 9 close to the second filter screen 1002, and a rectangular channel 902 is formed at the bottom of the other side of the collection tank 9 away from the second filter screen 1002. More specifically, the main function of the discharge pipe 901 is to discharge the clean asphalt filtered by the second filter screen 1002, and the rectangular channel 902 is used to discharge the impurities outwards.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modified asphalt production filtration device, characterized in that, Including: A filter cartridge (1), the bottom of the filter cartridge (1) is conical, one side of the filter cartridge (1) is communicated with an overflow pipe (2), and a first filter screen (3) is fixedly arranged below the overflow pipe (2) inside the filter cartridge (1); An installation cylinder (4), fixedly embedded in the middle inside the filter cartridge (1), a blanking pipe (5) is communicated with the bottom of the installation cylinder (4), strip-shaped holes (401) are annularly arranged on the surface of the installation cylinder (4) below the first filter screen (3), a hydraulic cylinder (6) is installed in the middle of the top of the filter cartridge (1), a sliding plug (7) is connected to the piston end of the hydraulic cylinder (6), the sliding plug (7) is slidably connected with the cylinder wall of the installation cylinder (4), and a feed pipe (8) is communicated with the surface of the installation cylinder (4) below the first filter screen (3) on one side; A collection tank (9) and a separation member (10), the collection tank (9) is arranged below the filter cartridge (1), support legs are connected between the upper edge of the collection tank (9) and the bottom of the filter cartridge (1), the separation member (10) is arranged inside the collection tank (9), and it is used to separate the drained impurities.

2. The modified asphalt production filtering device according to claim 1, characterized in that, A one-way valve (801) is installed on the pipe body of the feed pipe (8).

3. The modified asphalt production filtering device according to claim 1, characterized in that, One side of the top of the filter cartridge (1) is provided with a U-shaped pipe (11), one end of the U-shaped pipe (11) is communicated with the filter cartridge (1), and the other end is communicated with the installation cylinder (4), and an air exchange pipe (1101) is communicated upward in the middle of the U-shaped pipe (11).

4. A modified asphalt production filtering device according to claim 1, characterized in that, Liquid channels (701) are annularly arranged on the surface of the sliding plug (7), and the liquid channels (701) are conical in shape.

5. The modified asphalt production filtering device according to claim 1, characterized in that, The separation member (10) includes a triangular block (1001) fixedly arranged on the inner bottom wall of the collection tank (9), a second filter screen (1002) is obliquely arranged between the top of the triangular block (1001) and the upper edge of the collection tank (9), and the second filter screen (1002) is located below the blanking pipe (5).

6. The modified asphalt production filtering device according to claim 1, characterized in that, A discharge pipe (901) is communicated with the bottom of one side of the collection tank (9) close to the second filter screen (1002), and a rectangular channel (902) is arranged on the bottom of the other side of the collection tank (9) away from the second filter screen (1002).

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