Asphalt tile production process and asphalt tile product

Abstract

The invention discloses an asphalt shingle production process and an asphalt shingle product. The asphalt shingle production process comprises the following steps of tire feeding, drying, dip-coating, crude oil preparation, sanding, leveling, cooling, self-adhesive coating and roller cutting forming. Wherein in the dip-coating and crude oil preparation process, raw materials including 60-70 parts by mass of asphalt, 5-15 parts by mass of SBS, 3-10 parts by mass of SBR, 3-8 parts by mass of particles and 3-8 parts by mass of rubber powder are taken, the asphalt in parts by mass is input into a preparation tank, the oil temperature is increased to 200-230 DEG C, stirring is conducted for 10 + / -2 minutes, then the modified materials SBS, SBR, particles and rubber powder in parts by mass are sequentially added, stirring and melting are conducted, and the raw materials are evenly mixed; the oil temperature is kept unchanged, the stirring rotating speed is controlled to be 1500 revolutions per minute, the interval time is 1 hour, the modification time is kept between 4 hours and 5 hours, after the modified material is completely molten in the asphalt, the filler is added, the oil temperature is kept, the mixture is stirred to be completely uniform, and the stirring time is not shorter than 1.5 hours.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt shingles and their production, and in particular to an asphalt shingle production process and asphalt shingle products. Background Art

[0002] Fiberglass asphalt shingles are one of the main materials commonly used for roof waterproofing, and they are gaining more and more attention. The advantages of asphalt shingles mainly include: First, various shapes and a wide range of applications. Second, heat insulation and thermal insulation. Third, the roof is light in load-bearing, safe and reliable. Fourth, the construction is simple and the overall cost is low. Fifth, it is durable and has no worries about breaking. Sixth, it has various shapes and rich colors. The existing production method of fiberglass asphalt shingles is to use fiberglass felt as the matrix, then dip it in high-quality petroleum asphalt, and then cover one side with colored mineral particles, and then sprinkle isolation materials on the other side to make a shingle-shaped roof waterproof sheet.

[0003] The existing asphalt shingles basically meet the national production requirements. For some more demanding standards, the performance indicators of its products cannot meet the requirements based on the current process and formula. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present application provides an asphalt shingle production process and an asphalt shingle product.

[0005] The technical solution adopted by the present application to solve the technical problem is: an asphalt shingle production process, comprising the following steps: S1, tire loading, installing the fiberglass tire on the conveyor line; S2, drying, the fiberglass tire enters the drying device for heating and drying; S3, dip coating and crude oil preparation; S4, sand spreading, select the amount of sand spreading, sand spreading position and sand color according to requirements; S5, pressing the tile surface sand material flat by a pressing roller; S6, cooling down, reducing the temperature of the tile surface to below 35°C; S7, apply the self-adhesive adhesive and cover the isolation film on the tile surface; S8, performing roller cutting and forming by a roller cutting device; Among them, in the step S3, take the raw materials: 60-70 parts by mass of asphalt, 5-15 parts by mass of SBS, 3-10 parts by mass of SBR, 3-8 parts by mass of particles, and 3-8 parts by mass of rubber powder. The above-mentioned parts by mass of asphalt are input into the configuration tank, the oil temperature is raised to 200-230°C, and after stirring for 10±2 minutes, the above-mentioned parts by mass of modified materials SBS, SBR, particles and rubber powder are added in sequence for stirring and melting, the above-mentioned oil temperature is kept unchanged, the stirring speed is controlled to be 1500 rpm, the interval time is 1 hour, the modification time is kept between 4-5 hours, and when the modified material is completely melted in the asphalt, the filler is added and the oil temperature is maintained, and the mixture is stirred until it is completely uniform, and the stirring time is not less than 1.5 hours.

[0006] In some embodiments, in step S5, the thickness of the tile surface is maintained between 2.9-3.0 mm, and the temperature of the tire body when entering the pressure roller is maintained between 110-120°C.

[0007] In some embodiments, the step S7 is as follows: the oil coating temperature is adjusted before production and controlled between 150-170°C for standby use; the self-adhesive coating position is allowed to deviate by 0.5 cm to the left and right; the self-adhesive coating thickness is uniform and maintained between 1-1.5 mm.

[0008] In some embodiments, the filler is white without other colors, maintains a fineness of ≤100 mesh sieve residue ≤3%, a moisture content ≤2, and a specific gravity ≤3.

[0009] In some embodiments, the filler is one or more of talc, light calcium carbonate, precipitated barium sulfate, mica powder, silica fume, kaolin, limestone powder and diatomaceous earth.

[0010] In some embodiments, the asphalt in the raw material includes a mixture of 10# petroleum asphalt and 70# petroleum asphalt, wherein the softening point of the 10# petroleum asphalt is ≥95°C; the needle penetration is 10-25, unit 1 / 10mm; and the elongation is ≥1.5cm; the softening point of the 70# petroleum asphalt is ≥42-52°C; the needle penetration is 80-100, unit 1 / 10mm; and the elongation is ≥90cm.

[0011] In some embodiments, the roller cutting device includes a roller body driven by a transmission shaft, and the roller body is provided with a plurality of first blades arranged along the axial direction of the roller body, and a plurality of second blades arranged along the circumferential direction of the roller body, wherein the first blades are arranged in an staggered manner in the circumferential direction of the roller body, and adjacent second blades are arranged in an staggered manner and distributed in a ring on the roller body.

[0012] Based on the above-mentioned asphalt shingle production process, the present application also provides an asphalt shingle product on the other hand. Specifically, the roller cutting device in the above-mentioned embodiment is used for roller cutting and forming, and the formed asphalt shingle includes a plurality of block regions, and the block regions are formed with first cuts with intervals, and the extended edges of the block regions are at least formed with intervals and staggered, wherein the first cuts are formed by roller cutting with the first blade, and the extended edges of the block regions are formed by roller cutting with the second blade at different positions.

[0013] The beneficial effect of the present application is that by improving the raw materials and processes, the product can meet higher performance requirements. Specifically, its tensile performance, nail pull-out resistance, asphalt content and absorption rate and other parameters can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the structure of the roller cutting device of the present application.

[0016] Figure 2 It is a schematic diagram of the asphalt shingle product structure of this application.

[0017] Figure 3 This is a product photo of asphalt shingles for this application.

[0018] In the figure, 1. roller body, 2. first blade, 3. second blade, 4. asphalt shingle product, 41. block area, 42. first cut, 43. extended edge. DETAILED DESCRIPTION

[0019] The present application first provides an asphalt shingle production process. Specifically, the process includes the following steps: S1, tire loading, installing the fiberglass tire on the conveyor line; S2, drying, the fiberglass tire enters the drying device for heating and drying; S3, dip coating and crude oil preparation; S4, sand spreading, select the amount of sand spreading, sand spreading position and sand color according to requirements; S5, pressing the tile surface sand material flat by a pressing roller; S6, cooling down, reducing the temperature of the tile surface to below 35°C; S7, apply the self-adhesive adhesive and cover the isolation film on the tile surface; S8, performing roller cutting and forming by a roller cutting device; Among them, in the step S3, take the raw materials: 60-70 parts by mass of asphalt, 5-15 parts by mass of SBS, 3-10 parts by mass of SBR, 3-8 parts by mass of particles, and 3-8 parts by mass of rubber powder. The above-mentioned parts by mass of asphalt are input into the configuration tank, the oil temperature is raised to 200-230°C, and after stirring for 10±2 minutes, the above-mentioned parts by mass of modified materials SBS, SBR, particles and rubber powder are added in sequence for stirring and melting, the above-mentioned oil temperature is kept unchanged, the stirring speed is controlled to be 1500 rpm, the interval time is 1 hour, the modification time is kept between 4-5 hours, and when the modified material is completely melted in the asphalt, the filler is added and the oil temperature is maintained, and the mixture is stirred until it is completely uniform, and the stirring time is not less than 1.5 hours.

[0020] Optionally, in step S5, the thickness of the tile surface is maintained between 2.9-3.0 mm, and the temperature of the tire body when entering the pressure roller is maintained between 110-120°C.

[0021] Optionally, in step S7, specifically: before production, adjust the oil coating temperature and control it between 150-170°C for standby use; the self-adhesive coating position is allowed to deviate by 0.5cm to the left and right; the self-adhesive coating thickness is uniform and maintained between 1-1.5mm.

[0022] In some embodiments, the filler is white without other colors, maintains a fineness of ≤100 mesh sieve residue ≤3%, a moisture content ≤2, and a specific gravity ≤3.

[0023] In some embodiments, the filler is one or more of talc, light calcium carbonate, precipitated barium sulfate, mica powder, silica fume, kaolin, limestone powder and diatomaceous earth.

[0024] Specifically: Talc, which has good chemical stability and heat resistance, can improve the flexibility and tear resistance of asphalt shingles. Light calcium carbonate, which has high purity and good dispersibility, can enhance the hardness and wear resistance of asphalt shingles. Precipitated barium sulfate, which has good chemical stability and high density, can improve the density and impact resistance of asphalt shingles. Mica powder, which has good insulation and heat resistance, can improve the weather resistance and UV resistance of asphalt shingles. Silica fume can significantly improve the strength and durability of asphalt mixtures. Kaolin, which has good adhesion and water resistance, can improve the adhesion and waterproof properties of asphalt shingles. Limestone powder can improve the hardness and wear resistance of asphalt shingles. Diatomaceous earth, which has good water absorption and air permeability, can improve the waterproof performance of asphalt shingles.

[0025] When selecting fillers, it is also necessary to consider their dispersibility in asphalt and compatibility with other ingredients to ensure that the performance of the final product meets the expected standards. According to the actual specific needs and technical requirements, one or more fillers can be selected for mixing.

[0026] In some embodiments, the asphalt in the raw material includes a mixture of 10# petroleum asphalt and 70# petroleum asphalt, wherein the softening point of the 10# petroleum asphalt is ≥95°C; the needle penetration is 10-25, unit 1 / 10mm; and the elongation is ≥1.5cm; the softening point of the 70# petroleum asphalt is ≥42-52°C; the needle penetration is 80-100, unit 1 / 10mm; and the elongation is ≥90cm.

[0027] Table 1: Inspection data of 70# asphalt

[0028] Table 2: Test data of 10# asphalt

[0029] Reference Figure 1 As shown, the roller cutting device used in the roller cutting process will be further explained below. The roller cutting device includes a roller body driven by a transmission shaft, and the roller body is provided with a plurality of first blades arranged along the axial direction of the roller body, and a plurality of second blades arranged along the circumferential direction of the roller body, wherein the first blades are arranged in an staggered manner in the circumferential direction of the roller body, and adjacent second blades are arranged in an staggered manner and distributed in a ring on the roller body.

[0030] Reference Figure 2-3 As shown, based on the above-mentioned asphalt shingle production process, the present application also provides an asphalt shingle product on the other hand. Specifically, the roller cutting device in the above-mentioned embodiment is used for roller cutting and forming, and the formed asphalt shingle includes a plurality of block-shaped areas, and the block-shaped areas are formed with first cuts with intervals, and the extended edges of the block-shaped areas are at least formed with intervals and staggered, wherein the first cuts are formed by roller cutting with the first blade, and the extended edges of the block-shaped areas are formed by roller cutting with the second blade at different positions.

[0031] In one specific embodiment, in step S3 of the asphalt shingle production process, take the raw materials: 65 parts by mass of asphalt, 10 parts by mass of SBS, 5 parts by mass of SBR, 5 parts by mass of particles, and 5 parts by mass of rubber powder, input the above parts by mass of asphalt into the configuration tank, raise the oil temperature to 230°C, stir for 10 minutes, add the above parts by mass of modified materials SBS, SBR, particles and rubber powder in turn to stir and melt, keep the above oil temperature unchanged, control the stirring speed to 1500 rpm, the interval time is 1 hour, the modification time is kept at 4.5 hours, wait for the modified material to be completely melted in the asphalt, add the filler and keep the oil temperature, stir until it is completely uniform, and the stirring time is not less than 1.5 hours. Optionally, in the step S5, keep the tile surface thickness between 2.9-3.0mm, and keep the temperature of the tire body when entering the pressure roller between 110-120°C. Before production, adjust the oil coating temperature and control it at 160℃ for standby use; the self-adhesive coating position is allowed to deviate by 0.5cm to the left and right; the self-adhesive coating thickness is uniform and maintained between 1.5mm.

[0032] In another embodiment, in step S3 of the asphalt shingle production process, take the raw materials: 60 parts by mass of asphalt, 5 parts by mass of SBS, 3 parts by mass of SBR, 3 parts by mass of granules, and 3 parts by mass of rubber powder, input the above parts by mass of asphalt into the configuration tank, raise the oil temperature to 200°C, stir for 12 minutes, add the above parts by mass of modified materials SBS, SBR, granules and rubber powder in turn to stir and melt, keep the above oil temperature unchanged, control the stirring speed to 1500 rpm, the interval time is 1 hour, the modification time is kept at 5 hours, wait for the modified material to be completely melted in the asphalt, add the filler and keep the oil temperature, stir until it is completely uniform, and the stirring time is not less than 1.5 hours. Optionally, in the step S5, keep the tile surface thickness between 2.9-3.0mm, and keep the temperature of the tire body when entering the pressure roller between 110-120°C. Before production, adjust the oil coating temperature and control it at 160℃ for standby use; the self-adhesive coating position is allowed to deviate by 0.5cm to the left and right; the self-adhesive coating thickness is uniform and maintained between 1.5mm.

[0033] The above embodiment was repeated for 5 times to obtain the following asphalt shingle samples numbered 1-5. The asphalt shingle products were tested and the following test results were obtained.

[0034] Table 3: Asphalt shingle appearance quality inspection data

[0035] Table 4: Physical performance test data of asphalt shingles

[0036] In the national standard GB / T20474-2015 "Glass Fiber Asphalt Shingles", the recommended specifications are 1000mm in length and 333mm in width; the soluble content is required to be greater than 1500g / m²; the base must be intact after burning; the longitudinal tension is required to be greater than 600N, and the transverse tension is required to be greater than 400N; the nail pull-out resistance is required to be greater than 75N; the heat resistance of the self-adhesive glue is required to slide ≤2mm at 75℃; the waterproof performance requires waterproofness.

[0037] As described above, the asphalt shingle products produced using the asphalt shingle production process of this embodiment can meet the requirements in various performances and even exceed the national standard requirements.

[0038] The above is only a preferred embodiment of the present application and does not impose any form of limitation on the present application. Simple modifications, equivalent changes or modifications made without departing from the technical solution of the present application shall fall within the scope of protection of the present application.

Claims

1. A process for producing asphalt shingles, characterized in that: The following steps are involved: S1, tire loading, installing the fiberglass tire on the conveyor line; S2, drying, the fiberglass tire enters the drying device for heating and drying; S3, dip coating and crude oil preparation; S4, sand spreading, select the amount of sand spreading, sand spreading position and sand color according to requirements; S5, pressing the tile surface sand material flat by a pressing roller; S6, cooling down, reducing the temperature of the tile surface to below 35°C; S7, apply the self-adhesive adhesive and cover the isolation film on the tile surface; S8, performing roller cutting and forming by a roller cutting device; Among them, in the step S3, take the raw materials: 60-70 parts by mass of asphalt, 5-15 parts by mass of SBS, 3-10 parts by mass of SBR, 3-8 parts by mass of particles, and 3-8 parts by mass of rubber powder. The above-mentioned parts by mass of asphalt are input into the configuration tank, the oil temperature is raised to 200-230°C, and after stirring for 10±2 minutes, the above-mentioned parts by mass of modified materials SBS, SBR, particles and rubber powder are added in sequence for stirring and melting, the above-mentioned oil temperature is kept unchanged, the stirring speed is controlled to be 1500 rpm, the interval time is 1 hour, the modification time is kept between 4-5 hours, and when the modified material is completely melted in the asphalt, the filler is added and the oil temperature is maintained, and the mixture is stirred until it is completely uniform, and the stirring time is not less than 1.5 hours.

2. The asphalt shingle production process according to claim 1, characterized in that: In step S5, the thickness of the tile surface is maintained between 2.9-3.0 mm, and the temperature of the tire body when entering the pressing roller is maintained between 110-120° C.

3. The asphalt shingle production process according to claim 1, characterized in that: In the step S7, specifically: before production, adjust the oil coating temperature and control it between 150-170° C. for standby use; allow the self-adhesive coating position to deviate by 0.5 cm to the left and right; and the self-adhesive coating thickness is uniform and maintained between 1-1.5 mm.

4. The asphalt shingle production process according to claim 1, characterized in that: The filler is white without other colors, and has a fineness of ≤100 mesh sieve residue ≤3%, a moisture content ≤2, and a specific gravity ≤3.

5. The asphalt shingle production process according to claim 4, characterized in that: The filler is one or more combinations of talcum powder, light calcium carbonate, precipitated barium sulfate, mica powder, silica fume, kaolin, limestone powder and diatomaceous earth.

6. The asphalt shingle production process according to claim 1, characterized in that: The asphalt in the raw material includes a mixture of 10# petroleum asphalt and 70# petroleum asphalt, wherein the softening point of the 10# petroleum asphalt is ≥95°C; the needle penetration is 10-25, unit 1 / 10mm; and the elongation is ≥1.5cm; the softening point of the 70# petroleum asphalt is ≥42-52°C; the needle penetration is 80-100, unit 1 / 10mm; and the elongation is ≥90cm.

7. The asphalt shingle production process according to claim 1, characterized in that: The roller cutting device includes a roller body driven by a transmission shaft, and the roller body is provided with a plurality of first blades arranged along the axial direction of the roller body, and a plurality of second blades arranged along the circumferential direction of the roller body, wherein the first blades are arranged in an interval and staggered manner in the circumferential direction of the roller body, and adjacent second blades are arranged in an interval and staggered manner and distributed in a ring on the roller body.

8. An asphalt shingle product, characterized in that: The roller cutting device according to claim 7 is used for roller cutting and forming, and the formed asphalt shingles include a plurality of block areas, and first cuts with spacing are formed between the block areas, and the extended edges of the block areas are at least staggered with spacing, wherein the first cuts are formed by roller cutting with the first blade, and the extended edges of the block areas are formed by roller cutting with the second blade at different positions.

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