Geogrid air drying device

Abstract

A geogrid air-drying device comprises a bottom frame and an air-drying box on the bottom frame, air-drying units which are obliquely arranged up and down are arranged in the air-drying box, the air-drying units are connected with an external air blower through pipelines, and a geogrid is obliquely arranged between the two air-drying units in a penetrating mode; each air drying unit comprises a plurality of air blowing nozzles arranged in the width direction of the civil grid, the air blowing nozzles communicate with the pipeline through connecting pipes, the air blowing nozzles are movably connected with the outer walls of the connecting pipes, and the directions of nozzles of the air blowing nozzles are adjustable. The temperature of the civil grid modified asphalt at a lower position is certainly higher than that of a civil grid at a higher position, a plurality of air blowing nozzles are arranged below the civil grid, the air drying of the position with higher temperature of the asphalt is improved, and the air drying of the position with higher temperature of the asphalt is improved for the nearly dry position or the position with relatively lower temperature of the upper civil grid. And few air blowing nozzles are arranged, so that on the basis that continuous air drying of the civil grille is guaranteed, waste of wind energy is reduced, and the air drying cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of geogrids, in particular to a geogrid air-drying device. Background Art

[0002] Civil grating can enhance the bearing capacity of various building structures. Among them, civil grating is often used in road construction. In order to improve the service life of civil grating, civil grating is generally coated with modified asphalt on the surface during production to form a protective film, which effectively prevents the surface of the civil grating from being oxidized or corroded.

[0003] The modified asphalt is generally applied to civil gratings by spraying or brushing. The spraying method takes a short time to dry the modified asphalt, but has high requirements on the construction environment (such as wind force, air humidity, etc.); the brushing method is less affected by the environment and can control the coating thickness and coating range. For the brushing method, the prior art generally dries it in a drying box and cools it in the drying box. The cooling method is to set a fixed air outlet at the top or bottom of the drying box. Although the air can circulate in the drying box to blow and cool the civil grating, the surface of the civil grating is only cooled by the circulating air, and the upper and lower surfaces of the civil grating cannot be air-dried and cooled at the same time, which can easily lead to uneven air-drying and cooling of the upper and lower surfaces of the modified asphalt at the same position on the civil grating, and local shrinkage or cracks may occur, resulting in damage or falling off of the modified asphalt. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a geogrid air-drying device.

[0005] The technical solution of this utility model is as follows:

[0006] A geogrid air-drying device comprises a base frame and an air-drying box thereon, wherein two air-drying units are arranged symmetrically up and down in the air-drying box, the air-drying units are connected to an external blower through a pipeline, and the geogrid is arranged between the two air-drying units;

[0007] A single air-drying unit includes multiple blowing groups arranged along the length direction of the civil grille, and a single blowing group includes multiple blowing nozzles arranged along the width direction of the civil grille. The multiple blowing nozzles are connected to the pipeline through a connecting pipe, and the blowing nozzles are movably connected to the outer wall of the connecting pipe. The nozzles of the blowing nozzles are facing the civil grille, and the direction of the nozzles is adjustable.

[0008] The air-drying box is provided with an inlet and outlet for the civil grille to pass through on opposite sides. The civil grille coated with asphalt is inserted between the two air-drying units. The upper and lower surfaces of the civil grille are air-dried simultaneously by the air-blowing nozzles, which can reduce the local shrinkage or cracking caused by uneven cooling and air-drying at the same position of the civil grille. The spray angles of the air-blowing nozzles of the two air-drying units are adjustable, and the blowing cooling intensity of the civil grille can be adjusted according to the different components of the modified asphalt and the different drying time required.

[0009] The position of the air outlet of the drying box in the prior art is fixed, and the upper and lower heights of the air outlet cannot be adjusted. The adjustment effect is limited by controlling the air output power alone, and it is not convenient to control the blowing intensity of the earth and wood grille. For this reason, multiple blowing groups are set with adjustable vertical spacing from the earth and wood grille.

[0010] Regarding the installation position of the pipeline, there are multiple pipelines installed vertically, arranged at the four corners in the air drying box, which are connected with the ends of the adjacent connecting pipes and are perpendicular to the connecting pipes.

[0011] The newly dried civil grating passes through an air drying box from bottom to top. The air drying box has an inlet and an outlet. The surface temperature of the civil grating just entering the air drying box is higher than the surface temperature of the civil grating at the outlet side of the air drying box. For this reason, more blowing nozzles are arranged at the inlet of the air drying box to quickly cool the modified asphalt on the surface of the civil grating. For the civil grating that is almost dry or has a relatively low temperature near the outlet, fewer blowing nozzles are arranged on the upper and lower sides. Fewer blowing nozzles can continue to assist in air drying the surface of the civil grating. For this reason, multiple blowing nozzles of blowing groups are arranged, and the number of blowing nozzles decreases successively along the conveying direction of the civil grating.

[0012] The distance between the blowing group and the civil grid can be adjusted in such a way that the length of the pipe is adjustable, and thus the distance between the blowing nozzle of the blowing group and the civil grid can be adjusted, so that the blowing intensity of the blowing nozzle can be adjusted according to the modified asphalt of different materials or thicknesses.

[0013] Regarding the specific structure of the pipeline, the pipeline includes a first pipe section, a connecting pipe section and a second pipe section which are coaxially connected in sequence from top to bottom. The opposite ends of the first pipe section and the second pipe section are inserted into the corresponding ends of the connecting pipe section and are connected by a connecting piece. The connecting pipe section is used to connect the first pipe section and the second pipe section for easy disassembly and adjustment.

[0014] The structure of the connecting pipe section that can adjust the overall length of the pipeline is that slots are respectively provided at both ends of the connecting pipe section, and the slots are respectively adapted to the corresponding ends of the first pipe section and the second pipe section, and the depth of the slots is 5-20 cm. According to actual conditions, the depth of the first pipe section and the second pipe section in the slots is adjusted to adjust the distance between the blowing nozzle on the connecting pipe and the surface of the civil grille.

[0015] The connecting structure between the above-mentioned blowing nozzle and the connecting pipe is that an air outlet is opened on the outer wall of the connecting pipe, and the blowing nozzle is provided with an air inlet connected with the air outlet. The opening of the air inlet is larger than the opening of the air outlet, so that when the position of the blowing nozzle is adjusted on the connecting pipe, the air inlet is always connected with the air outlet.

[0016] Regarding the connection structure between the blowing nozzle and the connecting pipe, a connecting piece is provided at the lower end of the blowing nozzle, the connecting piece is sleeved on the outer wall of the connecting pipe, and is detachably connected to the connecting pipe.

[0017] In order to facilitate the air blown out by the blowing nozzle to be blown specifically to the modified asphalt that has just entered the air drying box to achieve rapid cooling, it is necessary to concentrate the wind force. An air guide plate is provided above the nozzle of the blowing nozzle at the entrance of one side of the air drying box. The length direction of the air guide plate is parallel to the axis of the blowing nozzle, and the width is greater than the diameter of the nozzle. The blowing nozzle itself has a certain blowing angle with the civil grille. The guide plate is provided to concentrate the wind force toward the surface of the civil grille that has just entered the air drying box, the wind force becomes stronger, and the cooling effect is significant.

[0018] The beneficial effect of the utility model is that the two air-drying units respectively include a plurality of blowing nozzles, and the nozzle direction of the blowing nozzle is adjustable according to the different components or thicknesses of the modified asphalt layer on the surface of the civil engineering grille, and the required cooling time is different, so as to adjust the spray range of the blowing nozzle toward the surface of the civil engineering grille, so as to adjust the wind strength blown by the blowing nozzle, and facilitate the rapid and uniform cooling of the upper and lower surfaces of the civil engineering grille;

[0019] A large number of air blowing nozzles are symmetrically arranged above and below the civil grid to improve the uniform air drying and cooling of the high temperature positions on the surface of the civil grid, which can reduce the local shrinkage or cracks caused by uneven cooling and air drying at the same position of the civil grid;

[0020] The civil grille is passed through the air-drying box. The surface temperature of the civil grille just entering the air-drying box is higher than the surface temperature of the civil grille at the outlet of the air-drying box. Therefore, more air blowing nozzles are arranged at the inlet of the air-drying box to quickly cool the civil grille. For the civil grille that is almost dry or has a relatively low temperature near the outlet, fewer air blowing nozzles are arranged on the upper and lower sides. This can reduce the number of air blowing nozzles and reduce the cooling cost while ensuring the continued air drying and cooling of the civil grille. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure;

[0023] Figure 2 It is a top view;

[0024] Figure 3 for Figure 2 AA section structural diagram;

[0025] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the internal structure;

[0027] Figure 6 It is a schematic diagram of the pipe section structure;

[0028] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0029] The components represented by the reference numerals in the figure are:

[0030] 1. Base frame; 2. Air drying box; 21. Inlet; 22. Outlet; 3. First pipe section; 4. Second pipe section; 5. Blowing nozzle; 51. Air inlet; 6. Connecting pipe; 61. Air outlet; 7. Connecting piece; 71. Arc-shaped connecting plate; 72. Fastening bolt; 8. Wind guide plate; 9. Civil grille; 10. Connecting pipe section; 101. Slot; 11. Blower; 12. Air duct; 13. Fasteners. DETAILED DESCRIPTION

[0031] See also Figure 1 , Figure 2 and Figure 3 A geogrid air-drying device is shown, which is arranged outside a geogrid 9 and includes a base frame 1 and an air-drying box 2 thereon. The base frame 1 is arranged on a reference plane. The air-drying unit is connected to an external blower 11 through a pipe and an air duct 12. The geogrid is inserted between the two air-drying units.

[0032] See also Figure 3 and Figure 5 As shown, the specific structure of the air-drying unit is that the air-drying unit located below the civil grille 9 includes a plurality of blowing groups, the blowing groups are arranged at equal intervals along the conveying direction of the civil grille 9, the spacing between the blowing groups and the civil grille 9 is equal, a single blowing group includes a plurality of blowing nozzles 5 arranged along the width direction of the civil grille 9, the plurality of blowing nozzles 5 are connected to the pipeline through a plurality of connecting pipes 6, the pipeline is connected to the external blower 11 through the air duct 12, the blowing nozzle 5 is movably connected to the outer wall of the connecting pipe 6, the nozzle of the blowing nozzle 5 is toward the civil grille 9, and the nozzle direction is adjustable.

[0033] The position of the air outlet in the prior art is fixed, the upper and lower heights are not adjustable, and the spacing from the surface of the earthwork grille is also not adjustable. The adjustment effect is limited by controlling the air outlet power alone, and it is not convenient to control the blowing force of the earthwork grille 9. For this reason, multiple blowing groups are set with adjustable vertical spacing from the earthwork grille 9. Multiple pipes are vertically arranged at the four corners of the air drying box 2, which are connected to the ends of the adjacent connecting pipes 6 and are perpendicular to the connecting pipes 6. The multiple pipes are respectively connected to the blowers 11.

[0034] See also Figure 5 and Figure 6 As shown, regarding the location of the pipeline, multiple pipelines are vertically arranged at the four corners of the air drying box 2, which are connected to the ends of the adjacent connecting pipes 6 and are perpendicular to the connecting pipes 6. The length of the pipeline is adjustable. Regarding the specific structure of the pipeline, the pipeline includes a first pipe section 3, a connecting pipe section 10 and a second pipe section 4 that are coaxially connected in sequence from top to bottom. The opposite ends of the first pipe section 3 and the second pipe section 4 are both inserted into the connecting pipe section 10 and connected by a fastener 13. The fastener 13 can be a clamp, which is used to clamp one end of the first pipe section 3 and one end of the second pipe section 4 on the connecting pipe section 10 respectively. See Figure 5 and Figure 7 As shown, the structure of the connecting pipe section 10 capable of adjusting the overall length of the pipeline is that slots 101 are respectively provided at both ends of the connecting pipe section 10, and the slots 101 are respectively adapted to the corresponding ends of the first pipe section 3 and the second pipe section, and the depth of the slot 101 is 5-20 cm. When one end of the first pipe section 3 is inserted into the slot 101 at one end of the connecting pipe section 10, a sealing ring can be installed to prevent air leakage. Similarly, when one end of the second pipe section 4 is inserted into the slot 101 at the other end of the connecting pipe section 10, a sealing ring can also be installed, and then fastened by the connecting member fastener 13.

[0035] See also Figure 3 As shown, the above-mentioned air-drying box 2 is respectively provided with an inlet 21 and an outlet 22 for the civil grille 9 to enter the air-drying box 2 from the inlet 21 below. The inlet 21 and the outlet 22 are also convenient for the circulation of air, and the air is obliquely passed through the outlet 22 above the air-drying box 2. The civil grille 9 is passed through the air-drying box 2. The surface temperature of the civil grille just entering the inlet 21 of the air-drying box 2 is relatively high. More blowing nozzles 5 are arranged below the civil grille 9 to improve the air-drying and cooling effect of the modified asphalt on the surface of the civil grille. For the civil grille 9 near the outlet 22 of the air-drying box 2, fewer blowing nozzles 5 are arranged above and below it. The civil grille 9 near the inlet of the air-drying box 2 is gradually dried and cooled under the air drying of the two air-drying units, and fewer blowing nozzles 5 can continue to perform auxiliary air drying. For this purpose, a plurality of blowing nozzles 5 of the blowing groups are arranged, and the number of blowing nozzles 5 decreases successively along the conveying direction of the civil grille. On the basis of ensuring the continued air drying of the civil grille 9, the number of blowing nozzles can be reduced to reduce the cooling cost.

[0036] The angle setting range of the blowing nozzle 5 of the air drying unit is that the nozzle of the blowing nozzle 5 below the civil grid 9 cannot be parallel to the civil grid 9. If the nozzle of the blowing nozzle 5 is parallel to the civil grid 9, it will not have an air drying effect on the civil grid 9. Therefore, according to the different components and thicknesses of the modified asphalt and the different drying times required, the blowing nozzle 5 and the civil grid 9 are set to have an appropriate angle, thereby achieving the adjustment of the wind intensity of the blowing nozzle 5 blowing toward the corresponding civil grid 9 surface.

[0037] See also Figure 3 As shown, in order to facilitate the air blown out by the blowing nozzle to be able to blow targetedly to the modified asphalt that has just entered the air drying box to achieve rapid cooling, it is necessary to concentrate the wind force to quickly cool down the civil grille that has just entered the air drying box. An air guide plate 8 is provided above the nozzle of the blowing nozzle 5 at the inlet 21 on one side of the air drying box 2. The length direction of the air guide plate 8 is parallel to the axis of the blowing nozzle 5, and the width is greater than the diameter of the nozzle. The blowing nozzle 5 itself has a certain blowing angle with the civil grille 9. A guide plate is provided to concentrate the wind force toward the surface of the civil grille 9 that has just entered the air drying box 2, so that the wind force becomes larger and the cooling effect is significant.

[0038] See also Figure 3 and Figure 4 As shown, regarding the connection structure between the blowing nozzle 5 and the connecting pipe 6, a connecting member 7 is provided at the lower end of the blowing nozzle 5, and the connecting member 7 includes arc-shaped connecting plates 71 arranged on both sides of the lower end of the blowing nozzle 5, and the lower ends of the two arc-shaped connecting plates 71 are connected by fastening bolts 72, and the two arc-shaped connecting plates 71 are adapted to the connecting pipe 6 and can be sleeved on the outer wall of the connecting pipe 6. The above-mentioned connecting structure between the blowing nozzle 5 and the connecting pipe 6 is that an air outlet 61 is provided on the outer wall of the connecting pipe 6, and the blowing nozzle 5 is provided with an air inlet 51 connected with the air outlet 61, and the air inlet 51 is arranged below the opposite side of the nozzle of the blowing nozzle 5, and the opening of the air inlet 51 is larger than the opening of the air outlet 61, so that when the blowing nozzle 5 is adjusted on the connecting pipe 6, the air inlet 51 is always connected with the air outlet 61. The specific adjustment method is to loosen the fastening bolts 72, and the two arc-shaped connecting plates 71 and the blowing nozzle 5 can be rotated at a certain angle on the outer wall of the connecting pipe 6. When adjusting the angle of the nozzle of the blowing nozzle 5 toward the civil grille 9, it is necessary to ensure that the air inlet 51 is always connected with the air outlet 61. After adjusting to the appropriate position, tighten the fastening bolts 72.

Claims

1. A geogrid air drying device, characterized in that: It comprises a base frame (1) and an air drying box (2) thereon, wherein the air drying box (2) is provided with two air drying units arranged symmetrically up and down, the air drying units are connected to an external blower (11) via a pipeline, and the geogrid is arranged between the two air drying units; A single air-drying unit comprises a plurality of blowing groups arranged along the length direction of the earth grille (9), and a single blowing group comprises a plurality of blowing nozzles (5) arranged along the width direction of the earth grille (9). The plurality of blowing nozzles (5) are connected to the pipeline via a connecting pipe (6), and the blowing nozzles (5) are movably connected to the outer wall of the connecting pipe (6). The nozzles of the blowing nozzles (5) face the earth grille (9), and the direction of the nozzles is adjustable.

2. A geogrid air-drying device according to claim 1, characterized in that: The vertical spacing between the plurality of blowing groups and the civil engineering grid is adjustable.

3. The geogrid air-drying device according to claim 1, characterized in that: The pipelines are arranged in multiple vertical directions at the four corners of the air drying box (2), are connected to the ends of the adjacent connecting pipes (6), and are perpendicular to the connecting pipes (6).

4. A geogrid air-drying device according to claim 3, characterized in that: The number of the blowing nozzles (5) of the blowing group decreases along the conveying direction of the civil engineering grid (9).

5. The geogrid air-drying device according to claim 1, characterized in that: The length of the pipeline is adjustable.

6. A geogrid air-drying device according to claim 5, characterized in that: The pipeline comprises a first pipe section (3), a connecting pipe section (10) and a second pipe section (4) which are coaxially connected in sequence from top to bottom, and opposite ends of the first pipe section (3) and the second pipe section (4) are inserted into corresponding ends of the connecting pipe section (10) and connected via a fastener (13).

7. The geogrid air-drying device according to claim 6, characterized in that: Both ends of the connecting pipe section (10) are respectively provided with slots (101), the slots (101) are respectively adapted to the corresponding ends of the first pipe section (3) and the second pipe section, and the depth of the slots (101) is 5-20 cm.

8. The geogrid air-drying device according to claim 1, characterized in that: An air outlet (61) is provided on the outer wall of the connecting pipe (6), and the blowing nozzle (5) is provided with an air inlet (51) connected to the air outlet (61), wherein the opening of the air inlet (51) is larger than the opening of the air outlet (61).

9. The geogrid air-drying device according to claim 8, characterized in that: A connecting piece (7) is provided at the lower end of the blowing nozzle (5); the connecting piece (7) is sleeved on the outer wall of the connecting pipe (6) and is detachably connected to the connecting pipe (6).

10. The geogrid air-drying device according to claim 3, characterized in that: The air drying box (2) has an inlet (21) on one side, and an air guide plate (8) is provided above the nozzle of the air blowing nozzle (5) near the inlet (21). The length direction of the air guide plate (8) is parallel to the axis of the air blowing nozzle (5), and the width is greater than the diameter of the nozzle.

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