Cover surface attaching method for water permeable bricks for paving ground

Abstract

The invention discloses a cover surface attachment method of water permeable bricks for paving the ground, belongs to the field of general building structures, and solves the problem that the surface water permeability of the water permeable bricks is easy to greatly reduce in the existing cover surface technology. A polyurethane resin spraying portal frame (2) is arranged on the water-permeable brick automatic conveying line (1), a spraying head (5) of polyurethane spraying equipment is arranged on the polyurethane resin spraying portal frame (2), a polyurethane spraying equipment main machine is connected to the spraying head (5), and weather-resistant polyurethane used for being attached to a water-permeable brick cover face is arranged in the polyurethane spraying equipment main machine; the water permeable brick conveying trolley (3) is controlled by the conveying trolley driving device (6) to pass through the polyurethane resin spraying portal frame (2) in the left-to-right direction, meanwhile, the polyurethane spraying equipment sprays weather-resistant polyurethane to the surface of a water permeable brick (4) through the spraying head (5), and therefore the cover surface is attached to the surface of the water permeable brick.

Description

Technical Field

[0001] The present invention relates to a permeable brick or plate for paving the ground, and in particular to a device and a method for attaching a resin cover surface of the permeable brick for paving the ground. Background Art

[0002] With the advancement of sponge cities, sidewalks along urban roads, open-air squares in commercial centers, and open-air public places such as parks have begun to use permeable bricks for paving in large quantities. In order to create a beautiful ground environment, imitation stone permeable bricks or boards for paving open-air floors have also emerged. Imitation stone permeable bricks or boards can be roughly divided into organic material permeable bricks and inorganic material permeable bricks. Inorganic material permeable bricks are made of inorganic substances, such as lime, cement, sand, gravel, concrete, etc., which have high weather resistance and fire resistance, but poor flexibility and thermal insulation performance. Various types of inorganic material permeable bricks used for paving the ground are required to have anti-slip and anti-friction properties during use. Wear and durability; since this type of permeable bricks are subject to rain, sun, freeze-thaw and carbonization during long-term use, their surface structure is prone to looseness and sand loss, shortening their service life; in order to overcome the above defects, technicians in the same field generally use organic resin materials with similar weather resistance to spray on the surface of permeable bricks to form a protective cover on the surface of permeable bricks to achieve the purpose of anti-slip, wear resistance and increased weather resistance; although the existing covering technology has greatly enhanced the weather resistance of the brick surface, it also brings about the problem of a significant decrease in the permeability of the surface layer of the permeable brick; how to solve the above problems has become a difficult problem that technicians in the same field need to overcome.

[0003] In order to achieve better anti-slip effect and make the brick surface have a better three-dimensional appearance, the surfaces of many imitation stone permeable bricks are made into lychee surfaces or convex and concave surfaces with significant undulating effects; how to attach weather-resistant organic resin materials to the surface of such permeable bricks so that they still have good permeability is a difficult problem in on-site implementation operations; because the droplets of organic resin materials sprayed on such surfaces have a stronger tendency to level, they can easily enter the permeable pores on the surface of the permeable bricks, resulting in a significant reduction in the permeability of the permeable bricks, and even causing the permeable bricks to become impermeable; therefore, how to attach the cover of organic resin materials to the surface of such permeable bricks is also a difficult problem in on-site operations. Summary of the Invention

[0004] The present invention provides a method for attaching a covering to a permeable brick used for paving the ground, which solves the technical problem of the existing covering technology that the permeability of the permeable brick surface is easily greatly reduced.

[0005] The present invention solves the above technical problems through the following technical solutions: One of the overall concepts of the present invention is to select a polyurethane resin with rapid solidification properties, such as polyether polyol, and heat it to improve its fluidity. The weather-resistant polyurethane resin is sprayed onto the top surface of the permeable brick at high pressure through a polyurethane spraying device. A diluent can be added simultaneously to allow the polyurethane resin droplets sprayed and bonded to the top surface of the permeable brick to quickly solidify into particles without leveling. In addition, the weather-resistant polyurethane resin droplets sprayed on the top surface of the permeable brick are combined with each other to form a mesh organic resin covering layer with gaps and holes, thereby achieving a water-permeable covering effect. The specific process is: select a polyurethane spraying device that can input two-component materials, select a polyether polyol with a viscosity of 3500mPa.s (milliPascals·seconds), and heat it to 60℃-70℃, select aliphatic polyisocyanate, and also heat the aliphatic polyisocyanate to 60℃-70℃, and simultaneously heat the above two heated materials The polyurethane spraying device is fed into the polyurethane spraying device, where the polyether polyol and the aliphatic polyisocyanate are mixed in a 1:1 weight ratio in the nozzle of the polyurethane spraying device to form a weather-resistant polyurethane resin mixture. The mixed weather-resistant polyurethane resin mixture is sprayed onto the top surface of the permeable brick at room temperature under a pressure of 25 MPa. The time from the sprayed polyurethane resin mixture leaving the nozzle to reaching the top surface of the permeable brick is controlled to be 0.8-1.5 seconds. The weight of the weather-resistant polyurethane resin mixture uniformly sprayed per square meter of the permeable brick surface is 80-110 grams. The diameter of the naturally cured weather-resistant polyurethane resin mixture droplets sprayed on the permeable brick surface is 50-120 microns. These naturally cured weather-resistant polyurethane resin mixture droplets combine with each other to form pores and gaps, thereby forming a mesh-like organic resin cover layer with gaps. By implementing the above technical solution, a porous organic resin mesh cover is sprayed on the permeable brick surface. The second overall concept of the present invention is to select a UV polyurethane resin with a viscosity of 300-500mPa.s, and spray the single-component UV polyurethane resin onto the top surface of the permeable brick through a polyurethane spraying device. The weight of the weather-resistant polyurethane resin mixture sprayed evenly on each square meter of the permeable brick surface is 80-110 grams. Then, ultraviolet light is irradiated onto the top surface of the permeable brick surface, so that the droplets sprayed onto the top surface of the permeable brick surface are cured by ultraviolet light, thereby forming a cover with holes; since the permeable brick surface has permeable pores of different sizes, the UV polyurethane resin with a viscosity of 300-500mPa.s is sprayed onto this On the top ends of some pores, due to the thinner viscosity of the UV polyurethane resin, the UV polyurethane resin flowing into the larger-diameter permeable pores will quickly flow through these pores and will not block these larger-diameter permeable pores, but will only block the capillary permeable pores with very small diameters. Therefore, the UV polyurethane resin sprayed on the surface of the permeable brick can only stay on the top surface of the permeable brick outside the larger-diameter permeable pores, and solidify under the subsequent ultraviolet ray irradiation, thereby forming a mesh organic resin covering layer that retains the gap pores on the surface of the permeable brick; the core of this technical solution is to spray an organic resin mesh cover on the surface of the permeable brick that does not block the existing pores of most permeable bricks.

[0006] A device for attaching a covering to permeable bricks for paving the ground comprises an automatic conveyor line for permeable bricks and permeable bricks, wherein a polyurethane resin spraying gantry is provided on the automatic conveyor line for permeable bricks, a nozzle of a polyurethane spraying device is provided on the polyurethane resin spraying gantry, a main unit of the polyurethane spraying device is connected to the nozzle, and the main unit of the polyurethane spraying device is provided with weather-resistant polyurethane for attaching the covering to the permeable bricks; a permeable brick conveying trolley is provided on the automatic conveyor line for permeable bricks below the polyurethane resin spraying gantry, the permeable bricks are laid flat on the table of the permeable brick conveying trolley with the surface layer upward, a conveying trolley drive device is provided on the automatic conveyor line for permeable bricks on the left side of the permeable brick conveying trolley, the conveying trolley drive device controls the permeable brick conveying trolley to pass through the polyurethane resin spraying gantry from left to right, and at the same time, the polyurethane spraying device sprays the weather-resistant polyurethane onto the surface of the permeable bricks through the nozzle, thereby achieving an attached covering on the surface of the permeable bricks.

[0007] The polyurethane spraying equipment is a polyurethane spraying equipment that can input two-component materials. The two-component polyurethane spraying equipment is respectively provided with a polyether polyol with a temperature of 60°C-70°C and an aliphatic polyisocyanate with a temperature of 60°C-70°C. The viscosity of the polyether polyol is 3500mPa.s; and the polyether polyol and the aliphatic polyisocyanate are mixed in a nozzle in a weight ratio of 1:1 and then sprayed.

[0008] The spray pressure of the mixture of polyether polyol and aliphatic polyisocyanate is 25MPa; the time it takes for the mixture of polyether polyol and aliphatic polyisocyanate to leave the nozzle and reach the top surface of the permeable brick is 0.8-1.5 seconds; the weight of the weather-resistant polyurethane resin mixture evenly sprayed on the surface of the permeable brick per square meter is 80-110 grams.

[0009] Another solution is that the weather-resistant polyurethane in the polyurethane spraying equipment is a UV polyurethane resin with a viscosity of 400-500 mPa.s, and the weight of the UV polyurethane resin evenly sprayed on each square meter of the permeable brick surface is 80-110 grams.

[0010] On the permeable brick automatic conveying line to the right of the polyurethane resin injection gantry, an ultraviolet emitting gantry is provided, and an ultraviolet emitter is provided on the ultraviolet emitting gantry. The ultraviolet rays emitted by the ultraviolet emitter are irradiated on the surface of the permeable bricks on the table of the permeable brick conveying trolley passing through the ultraviolet emitting gantry, so that the UV polyurethane resin on the surface of the permeable bricks is solidified.

[0011] A method for attaching a cover to a permeable brick used for paving the ground, characterized by the following steps: The first step is to select a polyurethane spraying device that can input two-component materials, and select polyether polyol with a viscosity of 3500mPa.s and aliphatic polyisocyanate as the attachment material on the surface of the permeable brick; The second step is to heat the polyether polyol selected in the first step to 60-70°C, and at the same time, heat the aliphatic polyisocyanate selected in the first step to 60-70°C. Then, these two materials are input into the polyurethane spraying equipment, and the spray pressure of the nozzle of the polyurethane spraying equipment is set to 25MPa; The third step is to control the permeable brick conveying trolley through the conveying trolley driving device under normal room temperature environment, so that the permeable brick conveying trolley moves from left to right on the automatic conveying line; when the permeable bricks on the table of the permeable brick conveying trolley pass through the polyurethane resin spraying gantry, the polyether polyol and the aliphatic polyisocyanate are mixed in the nozzle and sprayed out to spray the weather-resistant polyurethane resin mixture onto the surface of the permeable brick. In this process, by controlling the walking speed of the permeable brick conveying trolley, the weight of the weather-resistant polyurethane resin mixture evenly sprayed on each square meter of the permeable brick surface is 80-110 grams.

[0012] The time it takes for the polyether polyol and the aliphatic polyisocyanate to leave the nozzle and reach the surface of the permeable brick after being mixed is 0.8-1.5 seconds; the polyether polyol and the aliphatic polyisocyanate are mixed in the nozzle at a weight ratio of 1:1.

[0013] The diameter of the droplets of the naturally cured weather-resistant polyurethane resin mixture sprayed on the surface of the permeable brick is 50-120 microns.

[0014] A method for attaching a cover to a permeable brick used for paving the ground, characterized by the following steps: The first step is to select a polyurethane spraying device that can input a single-component material, and select a UV polyurethane resin with a viscosity of 300-500mPa.s as the attachment material on the surface of the permeable brick; The second step is to input the UV polyurethane resin selected in the first step into the polyurethane spraying equipment; Step 3: Under normal room temperature, the permeable brick conveying trolley is controlled by the conveying trolley driving device to move from left to right on the permeable brick automatic conveying line. When the permeable bricks on the table of the permeable brick conveying trolley pass through the polyurethane resin spraying gantry, the UV polyurethane resin is sprayed onto the surface of the permeable brick through the nozzle; and by controlling the walking speed of the permeable brick conveying trolley, the weight of the UV polyurethane resin evenly sprayed on each square meter of the permeable brick surface is 80-110 grams. Step 4: When the sprayed permeable bricks are conveyed to the bottom of the UV emitting gantry, the ultraviolet rays emitted by the UV emitter irradiate the surface of the permeable bricks on the permeable brick conveying trolley, solidifying the UV polyurethane resin on the surface of the permeable bricks.

[0015] The surface of the permeable bricks on the permeable brick conveying trolley is irradiated with ultraviolet rays for 15-20 seconds.

[0016] The present invention realizes the construction of a mesh cover with holes on the top surface of the permeable brick through a unique formula of a weather-resistant polyurethane resin mixture, supplemented by scientific control of the specific spraying temperature, spraying pressure, spraying distance and spraying amount of the resin mixture; the present invention selects a UV polyurethane resin with lower viscosity, so that the resin sprayed onto the surface of the permeable brick that enters the existing pores on the permeable brick is drained away, and is irradiated to the top surface of the permeable brick by ultraviolet rays, thereby forming a mesh organic resin cover layer that retains the existing pore entrances on the top surface of the permeable brick; the water permeability of the attached cover is achieved, and the weather resistance and anti-slip properties of the surface of the permeable brick are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings: A device for attaching a permeable brick cover to a pavement, comprising an automatic permeable brick conveyor line 1 and permeable bricks 4. A polyurethane resin spraying gantry 2 is provided on the automatic permeable brick conveyor line 1. A nozzle 5 of a polyurethane spraying device is provided on the polyurethane resin spraying gantry 2. A polyurethane spraying device host is connected to the nozzle 5. The polyurethane spraying device host can be set on the ground on one side of the polyurethane resin spraying gantry 2. The polyurethane spraying device host is provided with weather-resistant polyurethane for attaching the permeable brick cover. A permeable brick conveying trolley 3 is provided on the automatic permeable brick conveyor line 1 below the polyurethane resin spraying gantry 2. The permeable bricks 4 are laid flat on the surface of the permeable brick conveying trolley 3 with the surface layer facing upward. A conveying trolley driving device 6 is provided on the permeable brick automatic conveying line 1 on the left side of the permeable brick conveying trolley 3. The conveying trolley driving device 6 controls the permeable brick conveying trolley 3, and sprays the gantry 2 from left to right through the polyurethane resin. At the same time, the polyurethane spraying equipment sprays the weather-resistant polyurethane through the nozzle 5 onto the surface of the permeable brick 4, thereby realizing an adhesion cover on the surface of the permeable brick; the distance between the nozzle 5 and the surface of the permeable brick conveying trolley 3, and the traveling speed of the permeable brick conveying trolley 3 controlled by the conveying trolley driving device 6 can be adjusted.

[0019] The polyurethane spraying equipment is a polyurethane spraying equipment that can input two-component materials. After the two-component materials are respectively input into the polyurethane spraying equipment, they are mixed in the nozzle 5 and then sprayed out. The polyurethane spraying equipment for two-component materials is respectively provided with a polyether polyol with a temperature of 60°C-70°C and an aliphatic polyisocyanate with a temperature of 60°C-70°C. The two-component materials are heated to increase their fluidity so that the two can be easily sprayed out after mixing. The viscosity of the polyether polyol is 3500mPa.s; and the polyether polyol and the aliphatic polyisocyanate are mixed in the nozzle 5 in a weight ratio of 1:1 and then sprayed out.

[0020] The pressure of the mixture of polyether polyol and aliphatic polyisocyanate after spraying is 25MPa; the time it takes for the mixture of polyether polyol and aliphatic polyisocyanate to leave the nozzle 5 and reach the top surface of the permeable brick is 0.8-1.5 seconds. The travel time after spraying can be adjusted by adjusting the distance between the nozzle 5 and the table of the permeable brick conveying trolley 3, as well as changing the spraying pressure; the weight of the weather-resistant polyurethane resin mixture evenly sprayed on the surface of the permeable brick 4 per square meter is 80-110 grams. The spraying amount is obtained through repeated experiments in order to form a weather-resistant polyurethane resin cover with better permeable pores on the surface of the permeable brick 4.

[0021] The weather-resistant polyurethane in the polyurethane spraying equipment is a UV polyurethane resin with a viscosity of 300-500mPa.s. The UV polyurethane resin with this viscosity has good fluidity, so that the UV polyurethane resin that enters the pores on the surface of the permeable brick can be quickly lost, making it impossible to block the pores. The weight of the UV polyurethane resin evenly sprayed on the surface of each square meter of the permeable brick is 80-110 grams. This spraying amount can form a layer of resin cover on the surface of the permeable brick while ensuring the above effects.

[0022] On the permeable brick automatic conveying line 1 on the right side of the polyurethane resin injection gantry 2, an ultraviolet emitting gantry 7 is provided, and an ultraviolet emitter 8 is provided on the ultraviolet emitting gantry 7. The ultraviolet rays emitted by the ultraviolet emitter 8 are irradiated on the surface of the permeable brick 4 on the table top of the permeable brick conveying trolley 3 passing through the ultraviolet emitting gantry 7. The irradiation time can be controlled to be 15-20 seconds, so that the UV polyurethane resin on the surface of the permeable brick 4 is solidified.

[0023] A method for attaching a cover to permeable bricks for paving the ground comprises an automatic permeable brick conveyor line 1 and permeable bricks 4. A polyurethane resin spraying gantry 2 is provided on the automatic permeable brick conveyor line 1. A nozzle 5 of a polyurethane spraying device is provided on the polyurethane resin spraying gantry 2. The nozzle 5 is connected to a main unit of the polyurethane spraying device. A permeable brick conveying trolley 3 is provided on the automatic permeable brick conveyor line 1 below the polyurethane resin spraying gantry 2. The permeable bricks 4 are laid flat on the surface of the permeable brick conveying trolley 3 with the surface layer facing upward. A conveying trolley driving device 6 is provided on the automatic permeable brick conveyor line 1 on the left side of the permeable brick conveying trolley 3. The method is characterized by the following steps: The first step is to select a polyurethane spraying device that can input two-component materials, and select polyether polyol with a viscosity of 3500mPa.s and aliphatic polyisocyanate as the attachment material on the surface of the permeable brick 4; The second step is to heat the polyether polyol selected in the first step to 60-70°C, and at the same time, heat the aliphatic polyisocyanate selected in the first step to 60-70°C. Then, these two materials are input into the polyurethane spraying equipment, and the spray pressure of the nozzle of the polyurethane spraying equipment is set to 25MPa; The third step is to control the permeable brick conveying trolley 3 through the conveying trolley driving device 6 under normal room temperature environment, so that the permeable brick conveying trolley 3 moves from left to right on the automatic conveying line 1; when the permeable bricks 4 on the table of the permeable brick conveying trolley 3 pass through the polyurethane resin spraying gantry 2, the polyether polyol and the aliphatic polyisocyanate are mixed in the nozzle 5 and then sprayed out to spray the weather-resistant polyurethane resin mixture onto the surface of the permeable brick 4. In this process, by controlling the walking speed of the permeable brick conveying trolley 3, the weight of the weather-resistant polyurethane resin mixture evenly sprayed on each square meter of the permeable brick surface is 80-110 grams.

[0024] The time it takes for the polyether polyol and the aliphatic polyisocyanate to leave the nozzle and reach the surface of the permeable brick after mixing is 0.8-1.5 seconds; the polyether polyol and the aliphatic polyisocyanate are mixed in the nozzle 5 at a weight ratio of 1:1.

[0025] A method for attaching a cover to permeable bricks for paving the ground is characterized in that the diameter of the droplets of the naturally cured weather-resistant polyurethane resin mixture sprayed on the surface of the permeable bricks is 50-120 microns.

[0026] A method for attaching a cover to permeable bricks for paving the ground comprises an automatic permeable brick conveyor line 1 and permeable bricks 4. A polyurethane resin spraying gantry 2 is provided on the automatic permeable brick conveyor line 1. A nozzle 5 of a polyurethane spraying device is provided on the polyurethane resin spraying gantry 2. The nozzle 5 is connected to a main unit of the polyurethane spraying device. A permeable brick conveying trolley 3 is provided on the automatic permeable brick conveyor line 1 below the polyurethane resin spraying gantry 2. The permeable bricks 4 are laid flat on the surface of the permeable brick conveying trolley 3 with the surface layer facing upward. A conveying trolley driving device 6 is provided on the automatic permeable brick conveyor line 1 on the left side of the permeable brick conveying trolley 3. An ultraviolet emitting gantry 7 is provided on the automatic permeable brick conveyor line 1 on the right side of the polyurethane resin spraying gantry 2. An ultraviolet emitter 8 is provided on the ultraviolet emitting gantry 7. The method is characterized by the following steps: The first step is to select a polyurethane spraying device that can input a single-component material, and select a UV polyurethane resin with a viscosity of 300-500mPa.s as the attachment material on the surface of the permeable brick 4; The second step is to input the UV polyurethane resin selected in the first step into the polyurethane spraying equipment; Step 3: Under normal room temperature, the permeable brick conveying trolley 3 is controlled by the conveying trolley driving device 6 to move from left to right on the permeable brick automatic conveying line 1. When the permeable bricks 4 on the table of the permeable brick conveying trolley 3 pass through the polyurethane resin spraying gantry 2, UV polyurethane resin is sprayed onto the surface of the permeable bricks 4 through the nozzle 5. In addition, by controlling the travel speed of the permeable brick conveying trolley 3, the weight of the UV polyurethane resin evenly sprayed on each square meter of the permeable brick surface is 80-110 grams. Step 4. When the sprayed permeable bricks 4 are conveyed to the bottom of the ultraviolet emitting gantry 7, the ultraviolet rays emitted by the ultraviolet emitter 8 are irradiated on the surface of the permeable bricks 4 on the table of the permeable brick conveying trolley 3, so that the UV polyurethane resin on the surface of the permeable bricks 4 is solidified; the surface of the imitation stone permeable bricks is made into a lychee surface or a convex and concave surface with a significant undulating effect, which is more suitable for covering by this method.

[0027] The surface of the permeable bricks 4 on the permeable brick conveying trolley 3 is irradiated with ultraviolet rays for 15-20 seconds.

Claims

1. A method for attaching a cover to a permeable brick used for paving a ground, comprising a permeable brick automatic conveyor line (1) and permeable bricks (4), wherein a polyurethane resin spraying gantry (2) is provided on the permeable brick automatic conveyor line (1), a nozzle (5) of a polyurethane spraying device is provided on the polyurethane resin spraying gantry (2), a main unit of the polyurethane spraying device is connected to the nozzle (5), a permeable brick conveying trolley (3) is provided on the permeable brick automatic conveyor line (1) below the polyurethane resin spraying gantry (2), the permeable bricks (4) are laid flat on the table of the permeable brick conveying trolley (3) with the surface layer facing upward, and a conveying trolley driving device (6) is provided on the permeable brick automatic conveyor line (1) on the left side of the permeable brick conveying trolley (3); characterized in that Follow these steps: The first step is to select a polyurethane spraying device with a two-component material input, and select polyether polyol with a viscosity of 3500mPa.s and aliphatic polyisocyanate as the attachment material on the surface of the permeable brick (4); The second step is to heat the polyether polyol selected in the first step to 60-70°C. At the same time, the aliphatic polyisocyanate selected in the first step is also heated to 60-70°C. Then, these two materials are input into the polyurethane spraying equipment, and the spray pressure of the nozzle of the polyurethane spraying equipment is set to 25MPa. The third step is to control the permeable brick conveying trolley (3) by the conveying trolley driving device (6) under normal room temperature environment, so that the permeable brick conveying trolley (3) moves from left to right on the automatic conveying line (1); when the permeable bricks (4) on the table of the permeable brick conveying trolley (3) pass through the polyurethane resin spraying gantry (2), the polyether polyol and the aliphatic polyisocyanate are mixed in the nozzle (5) and then sprayed out, and the weather-resistant polyurethane resin mixture is sprayed onto the surface of the permeable brick (4). In this process, by controlling the walking speed of the permeable brick conveying trolley (3), the weight of the weather-resistant polyurethane resin mixture evenly sprayed on each square meter of the permeable brick surface is 80-110 grams.

2. A method for attaching a cover to a permeable brick for paving the ground according to claim 1, characterized in that: The time it takes for the polyether polyol and the aliphatic polyisocyanate to leave the nozzle and reach the surface of the permeable brick after mixing is 0.8-1.5 seconds; the polyether polyol and the aliphatic polyisocyanate are mixed in the nozzle (5) at a weight ratio of 1:

1.

3. A method for attaching a cover to a permeable brick for paving the ground according to claim 2, characterized in that: The diameter of the droplets of the naturally cured weather-resistant polyurethane resin mixture sprayed on the surface of the permeable brick is 50-120 microns.

4. A method for attaching a cover to a permeable brick used for paving a ground, comprising a permeable brick automatic conveyor line (1) and permeable bricks (4), wherein a polyurethane resin spraying gantry (2) is provided on the permeable brick automatic conveyor line (1), a nozzle (5) of a polyurethane spraying device is provided on the polyurethane resin spraying gantry (2), a main unit of the polyurethane spraying device is connected to the nozzle (5), a permeable brick conveying trolley (3) is provided on the permeable brick automatic conveyor line (1) below the polyurethane resin spraying gantry (2), the permeable bricks (4) are laid flat on the table of the permeable brick conveying trolley (3) with the surface layer facing upward, a conveying trolley driving device (6) is provided on the permeable brick automatic conveyor line (1) on the left side of the permeable brick conveying trolley (3); an ultraviolet emitting gantry (7) is provided on the permeable brick automatic conveyor line (1) on the right side of the polyurethane resin spraying gantry (2), and an ultraviolet emitter (8) is provided on the ultraviolet emitting gantry (7); characterized in that Follow these steps: The first step is to select a polyurethane spraying device that inputs a single-component material and select a UV polyurethane resin with a viscosity of 300-500mPa.s as the attachment material on the surface of the permeable brick (4); The second step is to input the UV polyurethane resin selected in the first step into the polyurethane spraying equipment; Step 3: Under normal room temperature, the permeable brick conveying trolley (3) is controlled by the conveying trolley driving device (6) to move from left to right on the permeable brick automatic conveying line (1). When the permeable bricks (4) on the table of the permeable brick conveying trolley (3) pass through the polyurethane resin spraying gantry (2), the UV polyurethane resin is sprayed onto the surface of the permeable brick (4) through the nozzle (5); and by controlling the travel speed of the permeable brick conveying trolley (3), the weight of the UV polyurethane resin evenly sprayed on each square meter of the permeable brick surface is 80-110 grams. In the fourth step, when the sprayed permeable bricks (4) are conveyed to the bottom of the ultraviolet emitting gantry (7), the ultraviolet rays emitted by the ultraviolet emitter (8) are irradiated on the surface of the permeable bricks (4) on the table of the permeable brick conveying trolley (3), so that the UV polyurethane resin on the surface of the permeable bricks (4) solidifies.

5. The method for attaching a cover to a permeable brick for paving the ground according to claim 4, characterized in that: The surface of the permeable bricks (4) on the permeable brick conveying trolley (3) is irradiated with ultraviolet rays for 15-20 seconds.

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