阅读说明：本技术 一种自粘防水卷材生产工艺 (Production process of self-adhesive waterproof roll ) 是由 袁闯 张太新 许文杰 南孟孜 黎庆焱 于 2021-07-16 设计创作，主要内容包括：本发明公开了一种自粘防水卷材生产工艺,包括以下步骤：S1、开启搅拌器,将计量好的沥青和油品加入密闭式保温配料罐中并作好记录；S2、利用搅拌器的快速搅拌对物料进行升温,升至150℃时完成沥青和油品的脱水工序；S3、待温度上升到160℃时开始加入计量后的改性剂进行改性；S4、开启胶体磨研磨升温；S5、将计量好的石粉通过自动投料系统进行均匀投料,混料结束后导入中转罐进行降温；S6、利用对辊成型完成成型,从对辊挤出后的卷材立即进行喷水冷却；S7、利用展平辊进行展平和储存,并利用收卷辊将展平后的卷材进行收卷和包装。本发明不仅对改性过程进行规范,而且对整个的生产工艺过程进行了标准化设计,能够使得生产出来的卷材产品性能更加稳定。(The invention discloses a production process of a self-adhesive waterproof coiled material, which comprises the following steps: s1, starting the stirrer, adding the metered asphalt and the metered oil into a closed heat-preservation batching tank, and recording; s2, rapidly stirring by using a stirrer to heat the materials, and finishing the dehydration process of the asphalt and the oil product when the temperature is raised to 150 ℃; s3, adding the metered modifier for modification when the temperature rises to 160 ℃; s4, starting a colloid mill for grinding and heating; s5, uniformly feeding the metered stone powder through an automatic feeding system, and introducing the stone powder into a transfer tank for cooling after the material mixing is finished; s6, forming by using a pair of rollers, and immediately spraying water for cooling the coiled material extruded by the pair of rollers; and S7, flattening and storing by using a flattening roller, and winding and packaging the flattened coiled material by using a winding roller. The invention not only standardizes the modification process, but also standardizes the whole production process, so that the performance of the produced coiled material product is more stable.)

1. A production process of a self-adhesive waterproof roll is characterized by comprising the following steps:

s1, starting the stirrer, adding the metered asphalt and the metered oil into a closed heat-preservation batching tank, and recording;

s2, after the asphalt and the oil are added, the materials are heated by rapid stirring of a stirrer, and when the temperature is raised to 150 ℃, the dehydration procedure of the asphalt and the oil is completed;

s3, when the temperature rises to 160 ℃, adding the metered modifier for modification, controlling the temperature at 160 ℃ and 170 ℃, adopting a point wrapping and weighing method for metering the modifier, and allowing the feeding deviation to be +/-1 kg;

s4, after the modifier is added, starting the colloid mill for grinding and heating, and when the temperature in the reaction kettle reaches 185 ℃, closing the colloid mill for timing and keeping the temperature for 180 min;

s5, uniformly feeding the metered stone powder through an automatic feeding system, keeping stirring and controlling the feeding speed in the feeding process, introducing the stone powder into a transfer tank for cooling after the material mixing is finished, controlling the discharging temperature to be 155 ℃, and keeping a stirrer in the transfer tank in a starting state before the discharging is finished;

s6, forming the self-adhesive waterproof coiled material by using double-roller forming, wherein the coiled material extruded by the double rollers needs to be immediately sprayed with water for cooling;

and S7, flattening and storing the cooled coiled material by using a flattening roller, and coiling and packaging the flattened coiled material by using a coiling roller.

2. The production process of the self-adhesive waterproof roll material as claimed in claim 1, wherein: in step S1, the metering and addition of the raw materials are carried out in a two-person operation, one person weighs, the other person collates and records the contents including the temperature, the name of the raw materials, the amount of the raw materials added and the time of the raw materials added, the allowable deviation of the asphalt feeding is + -20 Kg, and the allowable deviation of the oil feeding is + -10 Kg.

3. The production process of the self-adhesive waterproof roll material as claimed in claim 1, wherein: in step S1, the bitumen and oil product follow current mix principles.

4. The production process of the self-adhesive waterproof roll material as claimed in claim 1, wherein: in step S3, before the modifier is added, the modifier is checked for its behavior to ensure that it is dry and free from agglomeration, and if there is agglomeration, it is crushed into uniform particles with a tool.

5. The production process of the self-adhesive waterproof roll material as claimed in claim 1, wherein: in step S3, the modifiers include SBS, SBR, and rubber powder, and the actual feed amount and the feed completion time are recorded on the operation log after the main operation and the sub operation are verified when the modifiers are added.

6. The production process of the self-adhesive waterproof roll material as claimed in claim 1, wherein: in step S4, the grinding temperature is not higher than 190 ℃.

7. The production process of the self-adhesive waterproof roll material as claimed in claim 1, wherein: in step S5, the stone dust feed was allowed to deviate from ± 20 kg.

8. The production process of the self-adhesive waterproof roll material as claimed in claim 1, wherein: in step S6, the forming process of the self-adhesive waterproof roll by roll forming includes film application, material discharge, water spray cooling and vehicle speed control.

9. The process for producing self-adhesive waterproofing rolls according to any of claims 1 to 8, wherein: if the production task list of the day has coiled material products with the thickness of 2.0mm, under the condition that all parts of the machine are fully preheated and the process temperature is stable, products with the thickness of 2.0mm are produced first, and products with other specifications are produced again.

Technical Field

The invention relates to the technical field of waterproof roll production processes, in particular to a production process of a self-adhesive waterproof roll.

Background

The self-adhesive waterproof coiled material is a waterproof material which is prepared by taking self-adhesive rubber asphalt prepared from synthetic rubber such as SBS and the like, tackifier, high-quality road petroleum asphalt and the like as a base material, taking a tough high-density polyethylene film or aluminum foil as an upper surface material and taking a strippable silicon-coated isolating film or silicon-coated isolating paper as a lower surface anti-sticking isolating material. The waterproof material has the characteristics of low-temperature flexibility, self-healing property and good bonding property, can be constructed at normal temperature, has high construction speed and meets the requirement of environmental protection.

However, the existing self-adhesive waterproof coiled material has the problems of non-standard and non-standard technology in the modification process, so that the performance of the produced coiled material is unstable. Therefore, a new production process of the self-adhesive waterproof roll is needed.

Disclosure of Invention

In view of the above, the invention provides a production process of a self-adhesive waterproof roll, which not only standardizes the modification process, but also standardizes the whole production process, so that the performance of the produced roll product can be more stable.

In order to realize the purpose, the invention provides a production process of a self-adhesive waterproof roll, which comprises the following steps:

s1, starting the stirrer, adding the metered asphalt and the metered oil into a closed heat-preservation batching tank, and recording;

s2, after the asphalt and the oil are added, the materials are heated by rapid stirring of a stirrer, and when the temperature is raised to 150 ℃, the dehydration procedure of the asphalt and the oil is completed;

s3, when the temperature rises to 160 ℃, adding the metered modifier for modification, controlling the temperature at 160 ℃ and 170 ℃, adopting a point wrapping and weighing method for metering the modifier, and allowing the feeding deviation to be +/-1 kg;

s4, after the modifier is added, starting the colloid mill for grinding and heating, and when the temperature in the reaction kettle reaches 185 ℃, closing the colloid mill for timing and keeping the temperature for 180 min;

s5, uniformly feeding the metered stone powder through an automatic feeding system, keeping stirring and controlling the feeding speed in the feeding process, introducing the stone powder into a transfer tank for cooling after the material mixing is finished, controlling the discharging temperature to be 155 ℃, and keeping a stirrer in the transfer tank in a starting state before the discharging is finished;

s6, forming the self-adhesive waterproof coiled material by using double-roller forming, wherein the coiled material extruded by the double rollers needs to be immediately sprayed with water for cooling;

and S7, flattening and storing the cooled coiled material by using a flattening roller, and coiling and packaging the flattened coiled material by using a coiling roller.

Further, in step S1, the metering and addition of the raw materials are performed in a double-person operation, one person weighs, the other person collates and records the contents including the temperature, the name of the raw materials, the amount of the raw materials added and the time of the raw materials added, the feeding tolerance of the asphalt is + -20 Kg, and the feeding tolerance of the oil is + -10 Kg.

Further, in step S1, the asphalt and oil product follow the current mix principles.

Further, in step S3, before the modifier is added, the modifier is checked for its expression state to ensure that the modifier is dry and free from agglomeration, and if there is agglomeration, it is crushed into uniform particles with a tool.

Further, in step S3, the modifiers include SBS, SBR, and rubber powder, and the actual feed amount and the feed completion time are recorded on the operation log after the main operation and the sub-operation are verified when the modifiers are added.

Further, in step S4, the grinding temperature is not higher than 190 ℃.

Further, in step S5, the stone dust feed was allowed to deviate from ± 20 kg.

Further, in step S6, the forming process of the self-adhesive waterproof roll by roll forming includes film application, material discharge, water spray cooling and vehicle speed control.

Further, if the production task list of the day has coiled material products with the thickness of 2.0mm, under the condition that all parts of the machine are fully preheated and the process temperature is stable, products with the thickness of 2.0mm are produced first, and products with other specifications are produced.

The technical scheme of the invention has the following beneficial effects:

before the self-adhesive waterproof coiled material is produced by the method, a smoke treatment system, a workshop cooling system, an air exchange system and the like are started, so that the smooth operation of the whole process is ensured. In steps S1 and S2, the stirrer is started, and the asphalt and the oil are metered according to the required amount of the formula and added into a closed heat-preservation batching tank (key equipment). The tolerance of the asphalt feed was 20Kg, the tolerance of the oil feed was 10Kg, and the amount and time of addition and temperature were faithfully recorded on the operating record. All raw material metering is carried out by double persons, one person weighs, and the other person collates and records. After the asphalt and the oil are added, the temperature can be raised under the rapid stirring, and when the temperature is raised to 150 ℃, the dehydration process of the asphalt and the oil is completed. Asphalt and oil products follow the existing on-site mixing principle, and are strictly prohibited from being in a heat preservation state for a long time. Then, when the temperature rises to 160 ℃, the modifier such as SBS is added for modification.

In step S3, key control points and feed materials are measured by adding modifiers such as SBS and SBR, and the apparent states of SBS and SBR are checked, and SBS and SBR do not agglomerate when they are dried, and if they agglomerate, they are crushed into uniform particles by a tool. Feeding materials according to the required amount of the formula, controlling the temperature at 160-; the type I product can be slowly added at one time because of less SBR. The actual feed quantity and the feed completion time are recorded on the operation record after the verification of the main operation and the secondary operation. The metering was carried out by point wrapping and weighing, with feed tolerance of. + -.1 kg.

In addition, in steps S4 and S5, other modifiers such as SBS, SBR, rubber powder and the like are added, the colloid mill is started to grind and heat up after the modifiers are added, and when the temperature in the reaction kettle reaches 185 ℃, the colloid mill is stopped, the time is counted and the temperature is kept for 180 min. Wherein: grinding is a special process, a colloid mill is a key device, and the grinding temperature is not higher than 190 ℃. And (3) setting the stone powder feeding amount according to the required amount of the formula, and starting an automatic feeding system to feed materials. The stone powder is prevented from being poured into the mixing tank violently, and the stone powder should flow into the mixing tank evenly while being stirred, and the feeding speed is controlled by starting and stopping the automatic feeding system. The feed tolerance was ± 20 kg. Leading-in transfer jar cooling after the compounding, ejection of compact temperature: 135 ℃ and 155 ℃. Before the discharging is finished, the stirrer in the tank is kept in a starting state.

In step S6, preparation is required before molding: checking whether the mask and the isolation material for production meet the requirements of the produced products or not, and if not, immediately replacing the mask and the isolation material; checking the printing condition of the mask material, including whether the printing is printed on the reverse side and whether the printing is clear; checking the front and back of the isolation material and the edge film; and opening a heat conduction oil valve of the discharging pipeline to fully preheat the pipeline. The roll-to-roll forming process comprises the following steps:

1. film coating: the base film, the face film and the side film are covered on a pair of rollers, and if necessary, the newly replaced film is connected with the film produced last time by an adhesive tape. The flatness of the bottom die, the face film and the side film is noticed. No wrinkles, hollows, etc. can occur.

2. Discharging: and (4) starting to discharge, and paying attention to the size of the opened valve to ensure that the rubber material uniformly flows into the pair rollers and cannot be discharged too fast at a time. Before the sizing material enters the pair rollers, attention is paid to the thin consistency of the sizing material, the sizing material must be filtered by a screen, when the sizing material overflows the pair rollers, the sizing material starts to move, and the moving speed is slow firstly and then fast.

3. The discharging process needs to pay attention to whether large particles or lumps exist in the mixed rubber at any time, and if the large particles or lumps exist, the discharging process is immediately informed to stop discharging. And if necessary, notifying the process assurance department of treatment.

4. Water spraying and cooling: when the carriage starts, the water spraying device for the roller pair cooling water and the facial mask and the bottom film is opened.

5. When the car is driven, the deviation condition of the mask and the lap edges is noticed, if the glue overflows from the pair rollers, the pair rollers need to be cleaned in time, and the pair rollers are kept clean and free of any sundries.

6. The appearance and the integral tension of the coiled material and the water spraying condition of the cooling water are well controlled.

7. When the joints of the mask materials and other conditions affecting the internal and external qualities of the coiled materials occur, yellow adhesive tape marks are applied to remind post-process personnel.

8. Controlling the vehicle speed: the speed should be uniform during normal production. The power-on acceleration or the power-off deceleration should be slowly incremented or decremented.

9. Cooling the coiled material: and immediately starting a water spraying cooling device after the extrusion from the pair roller for cooling. And then adjusting the water spraying amount according to the tension of the coiled material, the surface temperature of the coiled material and the wrinkle condition.

In addition, in step S7, the nip roll must be kept clean and clean so as not to affect the web appearance. The speed of the vehicle is well controlled to be matched with the winding speed, and the coiled material at the coiled material storage position is not required to be accumulated and take off the ground. Meanwhile, during rolling and packaging, the speed of the rolling machine needs to be well controlled and matched with the rolling speed, so that the coiled materials at the coiled material storage position do not need to be accumulated and land-removed; when the web material without the tire is stored, the single overlap edge web material can not enable one end of the overlap edge to face downwards; the coiled material should be coiled up and rolled up evenly, and the inward and outward of the end face should not exceed 20 mm.

In addition, the following matters need to be noted during the operation:

1. when starting and stopping, changing paper, film and tyre body, the yellow adhesive tape is used to mark and warn quality-checking personnel and rolling personnel.

2. The front and the back of the isolating film, the isolating paper and the side film are noticed all the time, namely the silicon-coated surface is in contact with the sizing material.

3. The tension of the whole is noted, and the occurrence of breakage, coil deformation (width and thickness) and the like caused by excessive tension is avoided.

4. When the coiled material is produced in winter, the flattening roller needs to be started to be heated and cooled according to actual needs, and if the uncoiling is easy in the beginning stage of production, the flattening roller needs to be preheated in advance.

5. If the production task list of the day has products with the thickness of 2.0mm, under the condition that all parts of the machine are fully preheated and the process temperature is stable, the products with the thickness of 2.0mm are produced first and then products with other specifications are produced.

6. Coal tar pitch should not be used as raw material in the modified asphalt waterproof coiled material.

7. The mass fraction of aromatic hydrocarbon in the mineral oil used in the product is less than 3%.

Drawings

FIG. 1 is a schematic process flow diagram of the present invention;

FIG. 2 is a process flow diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 and 2 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

As shown in fig. 1 and 2: a production process of a self-adhesive waterproof roll comprises the following steps:

s1, starting the stirrer, adding the metered asphalt and the metered oil into a closed heat-preservation batching tank, and recording;

s2, after the asphalt and the oil are added, the materials are heated by rapid stirring of a stirrer, and when the temperature is raised to 150 ℃, the dehydration procedure of the asphalt and the oil is completed;

s3, when the temperature rises to 160 ℃, adding the metered modifier for modification, controlling the temperature at 160 ℃ and 170 ℃, adopting a point wrapping and weighing method for metering the modifier, and allowing the feeding deviation to be +/-1 kg;

s4, after the modifier is added, starting the colloid mill for grinding and heating, and when the temperature in the reaction kettle reaches 185 ℃, closing the colloid mill for timing and keeping the temperature for 180 min;

s5, uniformly feeding the metered stone powder through an automatic feeding system, keeping stirring and controlling the feeding speed in the feeding process, introducing the stone powder into a transfer tank for cooling after the material mixing is finished, controlling the discharging temperature to be 155 ℃, and keeping a stirrer in the transfer tank in a starting state before the discharging is finished;

s6, forming the self-adhesive waterproof coiled material by using double-roller forming, wherein the coiled material extruded by the double rollers needs to be immediately sprayed with water for cooling;

and S7, flattening and storing the cooled coiled material by using a flattening roller, and coiling and packaging the flattened coiled material by using a coiling roller.

According to one embodiment of the present invention, in step S1, the metering and addition of the raw materials are performed in a two-person operation, one person weighs, the other person collates and makes a record, the record includes temperature, name of the raw materials, amount of the raw materials added and time of the raw materials added, the allowable deviation of the feeding of the asphalt is + -20 Kg, and the allowable deviation of the feeding of the oil is + -10 Kg.

According to one embodiment of the present invention, in step S1, the bitumen and oil product follow current mix principles.

According to an embodiment of the present invention, in step S3, before adding the modifier, the modifier is checked for its performance status to ensure that the modifier is dry and free from agglomeration, and if there is agglomeration, it is first crushed into uniform particles with a tool.

According to one embodiment of the present invention, in step S3, the modifiers include SBS, SBR, and rubber powder, and the actual feed amount and the feed completion time are recorded on the operation log after the main operation and the sub-operation are verified while the modifiers are added.

According to an embodiment of the present invention, the milling temperature is not higher than 190 ℃ in step S4.

According to one embodiment of the invention, the stone dust feed is allowed to deviate from ± 20kg in step S5.

According to an embodiment of the invention, in step S6, the forming process of the self-adhesive waterproof roll by roll forming includes film coating, discharging, water spray cooling and vehicle speed control.

According to one embodiment of the invention, if the production order of the day has 2.0mm thick coil products, under the condition that the parts of the machine are fully preheated and the process temperature is stable, the 2.0mm thick products are produced first, and then the products with other specifications are produced.

Before the self-adhesive waterproof coiled material is produced by the method, a smoke treatment system, a workshop cooling system, an air exchange system and the like are started, so that the smooth operation of the whole process is ensured. In steps S1 and S2, the stirrer is started, and the asphalt and the oil are metered according to the required amount of the formula and added into a closed heat-preservation batching tank (key equipment). The tolerance of the asphalt feed was 20Kg, the tolerance of the oil feed was 10Kg, and the amount and time of addition and temperature were faithfully recorded on the operating record. All raw material metering is carried out by double persons, one person weighs, and the other person collates and records. After the asphalt and the oil are added, the temperature can be raised under the rapid stirring, and when the temperature is raised to 150 ℃, the dehydration process of the asphalt and the oil is completed. Asphalt and oil products follow the existing on-site mixing principle, and are strictly prohibited from being in a heat preservation state for a long time. Then, when the temperature rises to 160 ℃, the modifier such as SBS is added for modification.

In step S3, key control points and feed materials are measured by adding modifiers such as SBS and SBR, and the apparent states of SBS and SBR are checked, and SBS and SBR do not agglomerate when they are dried, and if they agglomerate, they are crushed into uniform particles by a tool. Feeding materials according to the required amount of the formula, controlling the temperature at 160-; the type I product can be slowly added at one time because of less SBR. The actual feed quantity and the feed completion time are recorded on the operation record after the verification of the main operation and the secondary operation. The metering was carried out by point wrapping and weighing, with feed tolerance of. + -.1 kg.

In addition, in steps S4 and S5, other modifiers such as SBS, SBR, rubber powder and the like are added, the colloid mill is started to grind and heat up after the modifiers are added, and when the temperature in the reaction kettle reaches 185 ℃, the colloid mill is stopped, the time is counted and the temperature is kept for 180 min. Wherein: grinding is a special process, a colloid mill is a key device, and the grinding temperature is not higher than 190 ℃. And (3) setting the stone powder feeding amount according to the required amount of the formula, and starting an automatic feeding system to feed materials. The stone powder is prevented from being poured into the mixing tank violently, and the stone powder should flow into the mixing tank evenly while being stirred, and the feeding speed is controlled by starting and stopping the automatic feeding system. The feed tolerance was ± 20 kg. Leading-in transfer jar cooling after the compounding, ejection of compact temperature: 135 ℃ and 155 ℃. Before the discharging is finished, the stirrer in the tank is kept in a starting state.

In step S6, preparation is required before molding: checking whether the mask and the isolation material for production meet the requirements of the produced products or not, and if not, immediately replacing the mask and the isolation material; checking the printing condition of the mask material, including whether the printing is printed on the reverse side and whether the printing is clear; checking the front and back of the isolation material and the edge film; and opening a heat conduction oil valve of the discharging pipeline to fully preheat the pipeline.

In addition, in step S7, the nip roll must be kept clean and clean so as not to affect the web appearance. The speed of the vehicle is well controlled to be matched with the winding speed, and the coiled material at the coiled material storage position is not required to be accumulated and take off the ground. Meanwhile, during rolling and packaging, the speed of the rolling machine needs to be well controlled and matched with the rolling speed, so that the coiled materials at the coiled material storage position do not need to be accumulated and land-removed; when the web material without the tire is stored, the single overlap edge web material can not enable one end of the overlap edge to face downwards; the coiled material should be coiled up and rolled up evenly, and the inward and outward of the end face should not exceed 20 mm.

The following substances can not be artificially added into the product:

persistent organic pollutants	Polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE)
		Phthalic acid esters	Dioctyl phthalate (DOP), di-n-butyl phthalate (DBP)

The content of soluble heavy metals in the product meets the following requirements:

solubility in waterLead (Pb)	≤10mg/kg
		Soluble cadmium (Cd)	≤10mg/kg
Soluble chromium (Cr)	≤10mg/kg
		Soluble mercury (Hg)	≤10mg/kg

The invention not only standardizes the modification process, but also standardizes the whole production process, so that the performance of the produced coiled material product is more stable.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.