Geogrid continuous drying machine

Abstract

A continuous drying machine for geogrids comprises a sealing box and a drying device, material conveying openings capable of allowing the grids to penetrate through are formed in the left side and the right side of the sealing box, the drying device comprises a fan and a heat exchanger which are arranged on the outer side of the sealing box and communicate with each other, and the drying device further comprises a blow-drying mechanism and a heat collecting mechanism which are arranged in the sealing box; the blow-drying mechanism comprises a blow-drying device arranged above a grating conveying path and communicated with the heat exchanger through an air supply pipe, hot air drying work of grating coating materials can be completed through the blow-drying device, the heat collecting mechanism comprises an air collecting pipe and a heat collecting groove formed below the grating conveying path, and the two ends of the air collecting pipe are communicated with the heat collecting groove and a draught fan respectively. Hot air discharged by the blow-drying device can be concentrated in the heat collecting groove, so that the hot air accumulated in the heat collecting groove can play a good role in drying the lower side of the geogrid, even if coating materials drop from the grid, the heat drying effect of the heat collecting groove cannot be affected, and the drying performance of the drying machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of drying devices, in particular to a geogrid continuous drying machine. Background Art

[0002] Fiberglass grid is a commonly used geotechnical material. In order to enhance the wear resistance, aging resistance, corrosion resistance and other properties of the grid, and to ensure good adhesion with materials such as asphalt or cement, it is usually necessary to coat the surface.

[0003] The application document with application number CN202120919101.4 in the patent library discloses a geogrid drying device, which completes the double-sided blowing and drying of the geogrid through the upper and lower air ducts in the drying box and the air outlets on the air ducts. With this setting method, during the transportation of the geogrid, the coating material on it can easily drip onto the air duct below. In particular, the geogrid is dried by hot air, which increases the risk of the coating material dripping due to heat. In the long run, the accumulation of coating materials will inevitably affect the drying work of the air duct below, which makes the drying work of the geogrid have certain limitations. Utility Model Content

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

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

[0006] A geogrid continuous dryer comprises a sealed box and a drying device. Specifically, two opposite sides of the sealed box are provided with material delivery ports capable of accommodating the passage of the geogrid, and the material delivery ports on both sides are arranged at the same height. The drying device comprises a fan and a heat exchanger which are arranged outside the sealed box and are interconnected. As the core technical concept of the utility model, the drying device also comprises a blow-drying mechanism and a heat collecting mechanism which are arranged inside the sealed box. As for the structure of the blow-drying mechanism, it comprises a blow-dryer which is arranged above the grid conveying path, and is connected to the heat exchanger through an air supply pipe. Under the action of the fan, the hot air heated by the heat exchanger can be discharged from the blow-dryer to complete the hot air drying of the grid coating material. As for the structure of the heat collecting mechanism, The utility model discloses a geogrid dryer which comprises an air collecting pipe and a heat collecting trough arranged below the grid conveying path, wherein both ends of the air collecting pipe are respectively connected with the heat collecting trough and the fan, and under the action of the heat collecting trough, the hot air discharged from the blow dryer can be concentrated in the heat collecting trough, so as to increase the temperature of the lower side of the grid, so that the hot air accumulated in the heat collecting trough can play a good drying role on the lower side of the geogrid, and even if there is dripping of the coating material on the grid, it will not affect the thermal drying effect of the heat collecting trough, and the setting of the air collecting pipe can absorb the hot air from the suction fan to the heat exchanger, thereby improving the utilization efficiency of thermal energy, and the setting of the fan between the heat exchanger and the heat collecting trough makes the temperature of the hot air passing through the fan lower, avoiding damage caused by overheating of the fan, and significantly improving the drying effect of the dryer.

[0007] The geogrid continuous dryer as described above is designed to improve the heat collection effect of the heat collecting trough and thereby ensure the heat drying effect of the heat collecting trough on the lower side of the grid. The heat collecting trough is a strip structure arranged along the front-to-back direction and its cross-section is a V-shaped opening facing upward.

[0008] Specifically speaking, the structure of the heat collecting trough includes end plates at both ends and enclosures located between the two end plates, wherein the enclosure includes a bottom plate with a V-shaped cross-section, first baffles are vertically provided on the upper parts of both sides of the bottom plate, second baffles are horizontally provided on the upper inner parts of the two first baffles, and third baffles are vertically provided on the lower inner parts of the two second baffles, the first baffle, the second baffle and the third baffle form an air suction chamber, and the air collecting pipe is connected to the air suction chamber. Based on this structure, the air suction work through the air collecting pipe is carried out on both sides of the heat collecting trough, thereby preventing the thermal drying effect of the heat collecting trough from being affected by the air suction of the air collecting pipe, and further ensuring the thermal drying effect of the heat collecting trough.

[0009] As a preferred implementation, in order to better recover the waste heat of hot air through the air collecting pipe, a guide plate is obliquely provided on the lower side of the third baffle.

[0010] As a further preference, in order to further ensure the hot air recovery effect of the air collecting duct and prevent the hot air recovery from affecting the thermal drying effect of the heat collecting tank, the guide plate is hingedly connected to the lower side of the third baffle, and an adjuster capable of adjusting the inclination angle of the guide plate is provided between the guide plate and the third baffle.

[0011] In the geogrid continuous dryer as described above, in order to ensure the drying effect of the blower, the heat exchanger is a strip structure arranged along the front-to-back direction, and a blowing groove is opened on its lower side along its length direction. The air supply pipe is connected to the blowing groove, and the cross-section of the blowing groove is a V-shape with the opening facing downward.

[0012] For the geogrid continuous dryer as described above, in order to further ensure the heat drying effect of the heat collecting trough on the lower side of the grid, the height difference between the horizontal plane where the feed port is located and the horizontal plane where the upper end of the heat collecting trough is located is 3-10 cm.

[0013] The beneficial effects of the utility model are as follows: the utility model is a geogrid continuous dryer, the grid can be continuously transported along the feed port, and the hot air drying work of the grid coating material can be completed by the blow dryer. The setting of the heat collecting tank, on the one hand, the hot air discharged by the blow dryer can be concentrated in the heat collecting tank, so as to increase the temperature of the lower side of the grid, so that the hot air accumulated in the heat collecting tank can have a good drying effect on the lower side of the geogrid, and even if there is dripping of the coating material on the grid, it will not affect the thermal drying effect of the heat collecting tank, and the setting of the air collecting pipe can absorb the hot air from the suction fan to the heat exchanger, thereby improving the utilization efficiency of thermal energy, and the setting of the fan between the heat exchanger and the heat collecting tank makes the temperature of the hot air passing through the fan lower, avoiding damage caused by overheating of the fan, and significantly improving the drying effect of the dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0015] In the attached picture:

[0016] Figure 1 It is a structural schematic diagram of a dryer in the embodiment;

[0017] Figure 2 It is a structural schematic diagram of the drying mechanism in the embodiment;

[0018] Figure 3 is a schematic structural diagram of a heat collection mechanism in an embodiment;

[0019] Figure 4 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] The components represented by the reference numerals in the figure are:

[0021] 1. Sealing box; 11. Feeding port; 2. Fan; 3. Heat exchanger; 4. Drying mechanism; 41. Air supply pipe; 42. Dryer; 5. Heat collecting mechanism; 51. Heat collecting tank; 52. Air collecting pipe; 53. Guide plate; 54. Regulator. DETAILED DESCRIPTION

[0022] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0023] Example

[0024] This embodiment provides a geogrid continuous drying machine, see Figure 1 , including a sealing box 1 and a drying device, the structure of the dryer (the above-mentioned geogrid continuous dryer) is described in detail below.

[0025] In this embodiment, combined with Figure 3 The sealing box 1 is provided with feeding ports 11 on opposite sides thereof, which can accommodate the grille to pass through, and the feeding ports 11 on both sides are arranged at the same height.

[0026] In this embodiment, the drying device includes a fan 2 and a heat exchanger 3 which are arranged outside the sealed box 1 and are connected to each other. The fan 2 includes an air inlet and an air outlet. The heat exchanger 3 is connected to the air outlet of the fan 2 and is configured to complete the heating work of the air source.

[0027] Furthermore, combined with Figure 2 The drying device includes a drying mechanism 4 arranged inside the sealing box 1. As for the structure of the drying mechanism 4, it includes a dryer 42 arranged above the grille conveying path, which is connected to the heat exchanger 3 through the air supply pipe 41. Under the action of the fan 2, the hot air heated by the heat exchanger 3 can be discharged from the dryer 42 to complete the hot air drying work of the grille coating material.

[0028] As a preferred embodiment, in order to ensure the drying effect of the blow dryer 42, the heat exchanger 3 is a strip structure arranged along the front-to-back direction, and a blowing groove is opened on its lower side along its length direction. The air supply pipe 41 is connected to the middle part of the blowing groove, and the cross-section of the blowing groove is a V-shape with the opening facing downward.

[0029] In this embodiment, combined with Figure 3As the core technical concept of the present invention, the drying device also includes a heat collecting mechanism 5 arranged inside the sealed box 1. As for the structure of the heat collecting mechanism 5, it includes an air collecting pipe 52 and a heat collecting tank 51 arranged below the grid conveying path. The two ends of the air collecting pipe 52 are respectively connected to the heat collecting tank 51 and the fan 2. Under the action of the heat collecting tank 51, the hot air discharged by the dryer 42 can be concentrated in the heat collecting tank 51, so as to increase the temperature of the lower side of the grid, so that the hot air accumulated in the heat collecting tank 51 can have a good drying effect on the lower side of the geogrid, and even if there is dripping of coating material on the grid, it will not affect the thermal drying effect of the heat collecting tank 51. The setting of the air collecting pipe 52 can absorb the hot air from the suction fan 2 to the heat exchanger 3, thereby improving the utilization efficiency of thermal energy. The setting of the fan 2 between the heat exchanger 3 and the heat collecting tank 51 makes the temperature of the hot air passing through the fan 2 lower, avoiding damage caused by overheating of the fan 2, and significantly improving the drying effect of the dryer.

[0030] As a preferred embodiment, in order to improve the heat collection effect of the heat collection tank 51 and further ensure the heat drying effect of the heat collection tank 51 on the lower side of the grille, the heat collection tank 51 is a strip structure arranged along the front-to-back direction, and its cross-section is a V-shape with the opening facing upward.

[0031] In order to further ensure the thermal drying effect of the heat collecting tank 51 on the lower side of the grille, the height difference between the horizontal plane where the feed port 11 is located and the horizontal plane where the upper end of the heat collecting tank 51 is located is 3-10cm, preferably 5cm. While ensuring the thermal drying effect of the heat collecting tank 51, the grille is prevented from hanging due to its own weight and interfering with the upper end of the heat collecting tank 51.

[0032] Specifically speaking, the structure of the heat collecting trough 51 includes end plates at both ends and enclosures located between the two end plates, wherein the enclosure includes a bottom plate with a V-shaped cross-section, first baffles are vertically provided on the upper parts of both sides of the bottom plate, second baffles are horizontally provided on the upper inner parts of the two first baffles, and third baffles are vertically provided on the lower inner parts of the two second baffles, both ends of the bottom plate, the first baffle, the second baffle and the third baffle are abutted against the end plates, and the first baffle, the second baffle and the third baffle form an air suction chamber, and the air collecting pipe 52 is connected to the air suction chamber. On the basis of this structure, the air suction work through the air collecting pipe 52 is carried out on both sides of the heat collecting trough 51, thereby preventing the thermal drying effect of the heat collecting trough 51 from being affected by the air suction of the air collecting pipe 52, and further ensuring the thermal drying effect of the heat collecting trough 51.

[0033] As for the structure of the air collecting pipe 52, it includes two first pipes, and the two ends of the two first pipes are respectively connected to the two ends of the two air suction chambers. The air collecting pipe 52 also includes a second pipe, and the middle parts of the two first pipes are connected to the second pipe through a third pipe, and the second pipe is connected to the air inlet of the fan 2.

[0034] As a further preference, in order to better recover the waste heat of the hot air through the air collecting pipe 52, a guide plate 53 is obliquely provided on the lower side of the third baffle, and both ends of the guide plate 53 abut against the inner sides of the two end plates.

[0035] More preferably, in order to further ensure the hot air recovery effect of the air collecting pipe 52 and prevent the hot air recovery from affecting the thermal drying effect of the heat collecting tank 51, the guide plate 53 is hingedly connected to the lower side of the third baffle, and an adjuster 54 capable of adjusting the inclination angle of the guide plate 53 is provided between the guide plate 53 and the third baffle. The adjuster 54 can be a telescopic cylinder whose two ends are respectively hinged to the guide plate 53 and the third baffle.

Claims

1. A geogrid continuous dryer, characterized in that: It comprises a sealing box (1) and a drying device; The sealed box (1) is provided with material delivery ports (11) capable of accommodating the grille to pass through on two opposite sides thereof, and the drying device comprises a fan (2) and a heat exchanger (3) which are arranged outside the sealed box (1) and are interconnected; The drying device further comprises a drying mechanism (4) and a heat collecting mechanism (5) which are arranged inside the sealed box (1); The drying mechanism (4) comprises a drying device (42) arranged above the grid conveying path and connected to the heat exchanger (3) via an air supply pipe (41); The heat collection mechanism (5) comprises an air collection pipe (52) and a heat collection tank (51) arranged below the grid conveying path, and two ends of the air collection pipe (52) are respectively connected to the heat collection tank (51) and the fan (2).

2. The geogrid continuous dryer according to claim 1, characterized in that: The heat collecting tank (51) is a strip-shaped structure arranged along the front-rear direction, and its cross section is a V-shaped structure with the opening facing upward.

3. The geogrid continuous dryer according to claim 2, characterized in that: The heat collecting tank (51) comprises end plates at both ends and a surrounding plate located between the end plates; The enclosure plate comprises a bottom plate with a V-shaped cross section, first baffles are vertically arranged on the upper parts of both sides of the bottom plate, second baffles are horizontally arranged on the inner upper parts of the two first baffles, and third baffles are vertically arranged on the inner lower parts of the two second baffles; The first baffle, the second baffle and the third baffle form an air suction chamber, and the air collecting pipe (52) is connected to the air suction chamber.

4. The geogrid continuous dryer according to claim 3, characterized in that: A guide plate (53) is obliquely provided on the lower side of the third baffle.

5. The geogrid continuous dryer according to claim 4, characterized in that: The guide plate (53) is hingedly connected to the lower side of the third baffle plate, and an adjuster (54) capable of adjusting the inclination angle of the guide plate (53) is provided between the guide plate (53) and the third baffle plate.

6. The geogrid continuous dryer according to claim 1, characterized in that: The heat exchanger (3) is a strip-shaped structure arranged in the front-to-back direction, and a blowing groove is provided on its lower side along its length direction, and the air supply pipe (41) is connected to the blowing groove; The cross section of the blowing slot is a V-shape with the opening facing downward.

7. The geogrid continuous dryer according to claim 1, characterized in that: The height difference between the horizontal plane where the feed port (11) is located and the horizontal plane where the upper end of the heat collecting tank (51) is located is 3-10 cm.

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