A device for filtering ring-rolled asphalt

Abstract

The utility model aims at solving the problem of low filtering efficiency caused by the low melting point of asphalt blocking the filter screen, provides a device for filtering ring asphalt, belongs to the technical field of filter device. The device for filtering ring asphalt comprises: a metal filter container, a metal grid support plate and a metal filter screen. The bottom of the metal filter container is provided with a drain; the metal grid support plate is clamped and fixed in the metal filter container; the metal filter screen is laid on the upper surface of the metal grid support plate; wherein, the metal grid support plate provides cold energy to the metal filter screen in contact with it during use. In the utility model, the metal grid support plate provides cold energy to the metal filter screen in contact with it, especially when the wastewater temperature is relatively high or the use environment temperature is relatively high, a local low-temperature cold environment is formed, so that the deposited asphalt particles can maintain the particle form, the softening phenomenon of asphalt is delayed, and the use efficiency of the metal filter screen is ensured.

Description

Technical Field

[0001] This utility model relates to a filtration device, and more particularly to a device for filtering asphalt from a ring polishing machine. Background Technology

[0002] In ring polishing machines, bitumen is primarily used as the material for the polishing mold. As the glass elements are processed, the weight of the straightening disc and the glass elements themselves pushes the bitumen downwards, resulting in shallower grooves (grooves are used to retain polishing fluid). This slows down processing efficiency, and subsequent bitumen grooving is done manually or by machine. During grooving, some bitumen flows into the sewer system through the drainpipe. Due to bitumen's low melting point, it sticks to the drainpipe / sewer system, eventually causing blockages. Therefore, it is crucial to separate the bitumen from the wastewater before it flows into the sewer / sewer system.

[0003] In the prior art, the retention of asphalt mainly relies on filtration equipment with a filter screen structure. For example, Chinese Utility Model (title: "Improved Combined Filter Cartridge", announcement number: CN205815232U, announcement date: 20161221) discloses an improved combined filter cartridge, which includes a funnel-shaped support cylinder and a metal filter screen. However, due to the low softening of asphalt, the metal filter screen often gets clogged, affecting the filtration efficiency, especially when the wastewater temperature is high or the ambient temperature is high (e.g., above 50°C). Utility Model Content

[0004] This invention aims to solve the problem of low filtration efficiency caused by filter screen clogging due to the low melting point of asphalt. It provides a device for filtering asphalt from a ring polishing machine. A metal grid support plate provides cooling to the metal filter screen in contact with it. Especially when the wastewater temperature is high or the ambient temperature is high, a local low-temperature environment is formed, which allows the deposited asphalt particles to maintain their particle shape and delays the softening of asphalt, thereby ensuring the efficiency of the metal filter screen.

[0005] The technical solution adopted in this utility model is:

[0006] An apparatus for filtering asphalt from a ring polishing machine, comprising:

[0007] A metal filter container, wherein the bottom of the metal filter container has a drain outlet;

[0008] A metal grid support plate, which is clamped and fixed inside the metal filter container;

[0009] A metal filter screen is laid on the upper surface of the metal grid support plate;

[0010] In use, the metal grid support plate provides cooling to the metal filter screen that is in contact with it.

[0011] Furthermore, the metal grid support plate is immersed in a low-temperature medium of -10~0℃ for 24 hours before use, or stored in a low-temperature environment of -30~0℃ when not in use.

[0012] Furthermore, the metal filter container includes a metal filter inner cylinder and a metal filter outer cylinder; the metal filter inner cylinder is located inside the metal filter outer cylinder, and an annular cavity is formed between the two, which contains a low-temperature medium of -10~0℃; the drain outlet is connected to the inner area of ​​the metal filter inner cylinder; and the metal grid support plate is fixedly held inside the metal filter inner cylinder.

[0013] Furthermore, the lower sidewall region of the metal filter inner cylinder protrudes in an annular shape towards its center to form an annular step, and the lower surface edge of the metal grid support plate contacts the annular step surface.

[0014] Furthermore, two partitions are provided between the inner metal filter cylinder and the outer metal filter cylinder, which divide the annular cavity into two independent areas, namely the first cavity unit and the second cavity unit; the interior of the metal grid support plate has a flow channel; the first cavity unit is connected to the flow channel via a first connecting pipe, and the second cavity unit is connected to the flow channel via a second connecting pipe.

[0015] Furthermore, the other free ends of the first and second connecting pipes pass through the annular step and extend above the annular step; the portions of the first and second connecting pipes above the annular step are perpendicular to the upper surface of the annular step; two inlet and outlet holes are opened in the area corresponding to the free ends of the first and second connecting pipes on the edge of the metal grid support plate, and the dimensions of the two inlet and outlet holes are matched with the dimensions of the free ends of the first and second connecting pipes; when the metal grid support plate is fixed in place, the first and second connecting pipes are inserted into the corresponding inlet and outlet holes.

[0016] Furthermore, sealing rings are provided at the joints between the first connecting pipe and the second connecting pipe and the corresponding inlet / outlet holes.

[0017] Furthermore, two partitions are provided between the inner metal filter cylinder and the outer metal filter cylinder, which divide the annular cavity into two independent areas, namely the first cavity unit and the second cavity unit; an S-shaped metal tube is provided on the lower surface of the metal grid support plate along the direction of the parallel grid strips, and the S-shaped metal tube is in surface contact with the lower surface of the metal grid support plate, with its two ends communicating with the first cavity unit and the second cavity unit respectively.

[0018] Furthermore, the metal filter container is also provided with support feet at the bottom.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a device for filtering asphalt from a ring polishing machine. On the one hand, the metal grid support plate can provide auxiliary support for the metal filter screen. On the other hand, the metal grid support plate provides cooling to the metal filter screen in contact with it. Especially when the wastewater temperature is high or the ambient temperature is high (e.g., above 50°C), a local low-temperature environment is formed, which allows the deposited asphalt particles to maintain their particle shape and delays the softening of the asphalt, thereby ensuring the efficiency of the metal filter screen. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view of the device for filtering asphalt using a ring polisher in this embodiment.

[0023] Figure 2 for Figure 1 Sectional view along the AA direction.

[0024] Figure 3 This is a three-dimensional structural diagram of the device for filtering asphalt using a ring polisher in this embodiment.

[0025] Figure 4 This is a three-dimensional structural diagram of a metal filter container.

[0026] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0027] Figure 6 This is a three-dimensional structural diagram of the metal grid support plate.

[0028] The attached figures are labeled as follows:

[0029] 100. Metal filter container; 110. Drain outlet; 120. Support foot; 130. Metal filter inner cylinder; 131. Annular step; 140. Metal filter outer cylinder; 150. Annular cavity; 151. First cavity unit; 152. Second cavity unit; 153. First connecting pipe; 154. Second connecting pipe; 160. Partition plate; 200. Metal grid support plate; 210. Inlet / outlet holes; 220. Flow channel. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0032] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0033] Figure 1 This is a front view of the device for filtering asphalt using a ring polisher in this embodiment. Figure 2 for Figure 1 Sectional view along the AA direction. Figure 3 This is a three-dimensional structural schematic diagram of the device for filtering asphalt using a ring polishing machine in this embodiment. Figures 1 to 3As shown, the device for filtration ring polishing asphalt includes a metal filter container 100 and a metal filter screen (not shown). The metal filter container 100 is used to contain processing wastewater containing asphalt particles, and its bottom has a drain outlet 110. Three support feet 120 are evenly distributed on the outside of the bottom of the metal filter container 100. The metal filter screen is used to intercept asphalt particles in the processing wastewater. To prevent asphalt particles from softening and deforming at the metal filter screen and clogging the filter screen holes, and to prevent the aggregated asphalt particles from softening and sticking together and clogging the water passage, thus affecting filtration efficiency, the device also includes a metal grid support plate 200. The metal grid support plate 200 is clamped and disposed on the lower inner side of the metal filter container 100 in a direction approximately parallel to the bottom surface of the metal filter container 100, with a certain gap between it and the bottom surface of the metal filter container 100; the metal filter screen is laid on the upper surface of the metal grid support plate 200. On the one hand, the metal grid support plate 200 can provide auxiliary support for the metal filter screen. On the other hand, the metal grid support plate 200 provides cooling to the metal filter screen in contact with it. Especially when the wastewater temperature is high or the ambient temperature is high (e.g., above 50°C), a local low-temperature environment is formed, which allows the deposited asphalt particles to maintain their particle shape and delays the softening of asphalt, thereby ensuring the efficiency of the metal filter screen.

[0034] In the optimized technical solution of this embodiment, in order to ensure that the metal grid support plate 200 can provide cooling capacity, it can be immersed in a low temperature medium (ice-water mixture, ice-sodium chloride-water mixture, etc.) at -10~0℃ for 24 hours before use, or stored in a low temperature environment at -30~0℃ when not in use.

[0035] Figure 4 This is a three-dimensional structural diagram of a metal filter container. Figure 3 and Figure 4As shown in the figure, in the optimized technical solution of this embodiment, the metal filter container 100 includes a metal filter inner cylinder 130 and a metal filter outer cylinder 140. The metal filter inner cylinder 130 and the metal filter outer cylinder 140 are arranged in a concentric circle, with the metal filter inner cylinder 130 located inside the metal filter outer cylinder 140; the drain outlet 110 communicates with the inner area of ​​the metal filter inner cylinder 130. The corresponding arrangement of the metal filter inner cylinder 130 and the metal filter outer cylinder 140 forms an annular cavity 150, which contains a low-temperature medium (such as an ice-water mixture or an ice-sodium chloride-water mixture) at -10 to 0°C. The outer circumference of the metal grid support plate 200 is clearance-fitted or interference-fitted with the inner circumference of the metal filter inner cylinder 130, so that the metal grid support plate 200 can be fixedly held inside the metal filter inner cylinder 130. Therefore, when the annular cavity 150 contains a low-temperature medium, the metal filter inner cylinder 130, the metal filter outer cylinder 140, the metal grid support plate 200 and the metal filter screen have relatively good heat transfer effects, which allows the metal filter screen area to maintain a low-temperature state for a longer period of time. On the other hand, the low-temperature medium transfers cold energy to the asphalt-containing wastewater in the metal filter outer cylinder 140, which is also conducive to reducing the wastewater temperature and maintaining the shape of the asphalt particles.

[0036] It should be noted that the cross-sectional shape of the metal filter inner cylinder 130 and the metal filter outer cylinder 140 in this embodiment can be circular, elliptical, polygonal, etc., without specific limitations.

[0037] Furthermore, the lower sidewall region of the metal filter inner cylinder 130 protrudes annularly towards its center to form an annular step 131, and the lower surface edge of the metal grid support plate 200 contacts the annular step 131. In this embodiment, the annular step 131 can provide support for the metal grid support plate 200 on the one hand, and restrict the installation position of the metal grid support plate 200 on the other hand.

[0038] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point B in the middle. Figure 6 This is a three-dimensional structural diagram of the metal grille support plate. Further, as... Figures 2 to 5As shown, two partitions 160 are provided between the inner metal filter cylinder 130 and the outer metal filter cylinder 140, dividing the annular cavity 150 into two independent areas, namely the first cavity unit 151 and the second cavity unit 152. Simultaneously, a first connecting pipe 153 and a second connecting pipe 154 are respectively provided between the first cavity unit 151 and the second cavity unit 152 and the inner metal filter cylinder 130. One end of the first connecting pipe 153 and the second connecting pipe 154 is connected to the first cavity unit 151 and the second cavity unit 152 respectively, and the other end passes through the annular step 131 and extends above the annular step 131. The portions of the first connecting pipe 153 and the second connecting pipe 154 above the annular step 131 are perpendicular to the upper surface of the annular step 131. Figure 6 As shown, the interior of the metal grid support plate 200 has several interconnected flow channels 220 (for example, the interior of the metal grid support plate 200 is designed as a hollow structure). Simultaneously, two inlet / outlet holes 210 are opened in the areas corresponding to the corresponding portions of the first connecting pipe 153 and the second connecting pipe 154 above the annular step 131. The dimensions of the two inlet / outlet holes 210 are matched with the dimensions of the corresponding portions of the first connecting pipe 153 and the second connecting pipe 154 above the corresponding annular step 131. Therefore, when the metal... When the lower surface edge of the metal grid support plate 200 contacts the annular step 131, the first connecting pipe 153 and the second connecting pipe 154 are inserted into the corresponding inlet / outlet holes 210. The first cavity unit 151 and the second cavity unit 152 are connected via the first connecting pipe 153, the second connecting pipe 154, and the flow channel 220 of the metal grid support plate 200. When there is a liquid level difference between the cryogenic medium stored in the first cavity unit 151 and the second cavity unit 152, the pressure difference causes the cryogenic medium to flow from inside the metal grid support plate 200. Compared to the method of obtaining cold energy by immersing the metal grid support plate 200 in a cryogenic medium or in a cryogenic environment and then transferring the cold energy to the outside, the flow of the cryogenic medium inside the metal grid support plate 200 greatly extends the time for the metal grid support plate 200 to transfer cold energy to the outside.

[0039] Furthermore, in order to prevent leakage at the junction of the first connecting pipe 153 and the second connecting pipe 154 with the corresponding inlet / outlet holes 210, a corresponding sealing ring (not shown in the figure) can be provided.

[0040] In addition to the aforementioned method of providing flow channels inside the metal grid support plate 200 for the flow of low-temperature medium and continuously transferring cold energy outward, the optimized technical solution of this embodiment provides an S-shaped metal tube on the lower surface of the metal grid support plate 200 along the direction of the parallel grid strips. The S-shaped metal tube is in surface contact with the lower surface of the metal grid support plate 200 (i.e., the part of the S-shaped metal tube in contact with the metal grid support plate 200 is planar), and its two ends are respectively connected to the first cavity unit 151 and the second cavity unit 152. Compared with processing flow channels inside the metal grid support plate 200, the S-shaped metal tube is easier to process and has a shorter manufacturing cycle.

Claims

1. A device for filtering asphalt from a ring polishing machine, characterized in that, include: A metal filter container, wherein the bottom of the metal filter container has a drain outlet; A metal grid support plate, which is clamped and fixed inside the metal filter container; A metal filter screen is laid on the upper surface of the metal grid support plate; In use, the metal grid support plate provides cooling to the metal filter screen that is in contact with it.

2. The apparatus for filtering asphalt using a ring polisher according to claim 1, characterized in that, The metal grating support plate is immersed in a low-temperature medium of -10~0℃ for 24 hours before use, or stored in a low-temperature environment of -30~0℃ when not in use.

3. The apparatus for filtering asphalt using a ring polisher according to claim 1, characterized in that, The metal filter container includes a metal inner filter cylinder and a metal outer filter cylinder; the metal inner filter cylinder is located inside the metal outer filter cylinder, and an annular cavity is formed between the two, which contains a low-temperature medium of -10~0℃; the drain outlet is connected to the inner area of ​​the metal inner filter cylinder; and the metal grid support plate is fixedly held inside the metal inner filter cylinder.

4. The apparatus for filtering asphalt using a ring polisher according to claim 3, characterized in that, The lower side wall region of the metal filter inner cylinder protrudes in a ring shape towards its center to form an annular step, and the lower surface edge of the metal grid support plate contacts the annular step surface.

5. The apparatus for filtering asphalt using a ring polisher according to claim 4, characterized in that, Two partitions are provided between the inner metal filter cylinder and the outer metal filter cylinder, which divide the annular cavity into two independent areas, namely the first cavity unit and the second cavity unit; the metal grid support plate has a flow channel inside; the first cavity unit is connected to the flow channel via a first connecting pipe, and the second cavity unit is connected to the flow channel via a second connecting pipe.

6. The apparatus for filtering asphalt using a ring polisher according to claim 5, characterized in that, The other free ends of the first and second connecting pipes pass through the annular step and extend above the annular step; the portions of the first and second connecting pipes above the annular step are perpendicular to the upper surface of the annular step; two inlet and outlet holes are opened in the area corresponding to the free ends of the first and second connecting pipes on the edge of the metal grid support plate, and the dimensions of the two inlet and outlet holes are matched with the dimensions of the free ends of the first and second connecting pipes; when the metal grid support plate is fixed in place, the first and second connecting pipes are inserted into the corresponding inlet and outlet holes.

7. The apparatus for filtering asphalt using a ring polisher according to claim 6, characterized in that, A sealing ring is provided at the junction of the first connecting pipe and the second connecting pipe with the corresponding inlet / outlet holes.

8. The apparatus for filtering asphalt using a ring polisher according to claim 3 or 4, characterized in that, Two partitions are provided between the inner metal filter cylinder and the outer metal filter cylinder, which divide the annular cavity into two independent areas, namely the first cavity unit and the second cavity unit. An S-shaped metal tube is provided on the lower surface of the metal grid support plate along the direction of the parallel grid strips. The S-shaped metal tube is in surface contact with the lower surface of the metal grid support plate, and its two ends are connected to the first cavity unit and the second cavity unit, respectively.

9. The apparatus for filtering asphalt using a ring polisher according to claim 1, characterized in that, The metal filter container is also provided with support feet at the bottom.

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