Mineral asphalt processing system and waterproof coiled material
By combining components for crushing, blending, screening, and drying, the problem of high and uneven moisture content in mineral bitumen has been solved, enabling efficient and low-cost processing of mineral bitumen and improving the performance and production efficiency of waterproof membranes.
Patent Information
- Application Number
- CN202422518521.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing technologies lack effective mineral bitumen processing techniques, resulting in high and uneven moisture content, making processing difficult, inefficient, and costly, thus limiting its widespread application in the field of waterproof membranes.
The system employs a combination of crushing, blending, screening, and drying components. The crushing component crushes the mineral asphalt raw material to different particle sizes, the blending component adds a separating material, the screening component performs size and moisture screening, and finally the drying component reduces the moisture content to form the finished mineral asphalt.
It solves the problem of high and uneven moisture content in mineral bitumen, improves the stability and production efficiency of finished products, reduces costs, and enhances the overall performance and safety of waterproof membranes.
Smart Images
Figure CN223630706U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to asphalt waterproofing membrane technical field especially relates to a mineral asphalt processing system and waterproofing membrane. BACKGROUND
[0002] Modified asphalt waterproofing membrane is a kind of asphalt-based waterproofing material, and plays an important role in civil, industrial and waterproofing buildings, and its durability is the research focus in recent years. Mineral asphalt is a kind of natural rock asphalt, and its yield is abundant. It has very high application value due to its excellent cost performance. Because its raw ore asphalt content accounts for about 25%, the water content is the highest, more than 10%, and is unstable. In natural state, it presents uneven hard block, and processing is difficult, efficiency is low, and the current processing technology cost is high. Therefore, its application is limited. At present, it is widely used in road field, and is rarely used in other fields. Due to its performance of not containing wax and high durability and stability, it can improve the high-temperature stability and durability when applied to waterproofing membrane, and its raw ore price is cheap, so that economic benefits can be generated.
[0003] The related prior art such as patent CN115849766A discloses a processing technology of regenerant in plant mixing hot recycled asphalt mixing proportion, including the following steps: step one, milling the damaged part of asphalt mixture surface layer, obtaining RAP old material by crushing and screening; step two, configuring asphalt raw material, aggregate, filler and regenerant according to the mixture; step three, mixing RAP old material and regenerant to obtain first mixture; step four, adding preheated aggregate into the first mixture, and uniformly heating and mixing to obtain second mixture; step five, adding filler and asphalt raw material into the second mixture, and uniformly heating and mixing to obtain hot recycled asphalt mixture; step six, curing and compacting the asphalt mixture at a temperature range of 140-145 DEG C to obtain finished asphalt mixture; the scheme can regenerate and recycle waste pavement materials, so that the occupation of land and the pollution to environment caused by waste material stacking can be avoided.
[0004] Further, patent CN116285398A discloses an environment-friendly exposed type facing material and environment-friendly exposed type modified asphalt waterproofing membrane and preparation method. The environment-friendly exposed type facing material is obtained from recycled asphalt stone produced in asphalt roadbed maintenance, and is self-made by sequentially passing through primary crushing, screening, secondary crushing, screening, grading and stirring processes. The environment-friendly exposed type modified asphalt waterproofing membrane prepared from the environment-friendly exposed type facing material has more reliable adhesion between mineral particles and modified asphalt, excellent puncture resistance, can effectively resist ultraviolet aging and water erosion and peeling, and is a new type of facing material that can replace existing mineral particle facing material and be applied to exposed waterproofing material.
[0005] So far, there is no process reference for the processing of mineral pitch, and the performance of the related products prepared by the existing process still has room for further improvement. It is necessary to find a mineral pitch processing process to solve the problems in the prior art. Content of the utility model
[0006] In view of the above technical problems, the utility model provides a mineral pitch processing system, which has low comprehensive cost and excellent performance.
[0007] The utility model provides a mineral pitch processing system, which comprises a crushing assembly, a mixing assembly, a screening assembly and a drying assembly arranged in sequence.
[0008] The crushing assembly is provided with a raw material inlet for adding mineral pitch raw materials.
[0009] The mixing assembly comprises a first mixing module and a second mixing module arranged in sequence, wherein the first mixing module and the second mixing module each comprise an isolation material A inlet and an isolation material B inlet, the isolation material A inlet is used for adding isolation material A, and the isolation material B inlet is used for adding isolation material B; the isolation material A and the isolation material B each comprise one or more of hard pitch, filler and rubber powder.
[0010] The screening assembly is provided with a size screening module and a humidity screening module for screening the size and the moisture content respectively to obtain a semi-finished product.
[0011] The drying assembly is used for drying the mineral pitch screened by the screening assembly to obtain a finished product EP.
[0012] Preferably, the crushing assembly comprises a first crushing module, a second crushing module and a third crushing module arranged in sequence.
[0013] Preferably, the first crushing module is used for crushing to obtain a particle size of ≤500 mm, the second crushing module is used for crushing to obtain a particle size of ≤200 mm, and the third crushing module is used for crushing to obtain a particle size of ≤20 mm.
[0014] Preferably, the first mixing module is used for mixing to obtain a particle size of 10-20 mm and a moisture content of ≤10%; and the second mixing module is used for mixing to obtain a particle size of 10-20 mesh and a moisture content of ≤7%.
[0015] Preferably, the semi-finished product has a particle size of ≤100 mesh and a moisture content of ≤5%.
[0016] Preferably, the drying assembly comprises a first drying module and a second drying module arranged in sequence.
[0017] Preferably, the product dried by the first drying module has a moisture content of ≤3.5%.
[0018] Preferably, the second drying module dries the product to a moisture content of ≤2%.
[0019] Preferably, a weighing assembly is further included, connected to the mixing assembly, for weighing the intermediate product, the isolation material A and the isolation material B produced by the crushing assembly.
[0020] Preferably, the isolation material A accounts for 20-30% of the total weight of the intermediate product and the isolation material A; and the intermediate product accounts for 40-50% of the total weight of the intermediate product, the isolation material A and the isolation material B.
[0021] Preferably, the isolation material A accounts for 25% of the total weight of the intermediate product and the isolation material A; and the intermediate product accounts for 45% of the total weight of the intermediate product, the isolation material A and the isolation material B.
[0022] The utility model discloses still provide a kind of waterproofing membrane, including upper surface isolation layer, upper surface modified asphalt coating layer, intermediate reinforcing body layer, lower surface modified asphalt coating layer and lower surface isolation layer;The upper surface modified asphalt coating layer material and lower surface modified asphalt coating layer material all include the finished product EP made of above-mentioned mineral asphalt processing system.
[0023] It is worth mentioning that the mineral asphalt used in the utility model is a kind of asphalt substance generated by the comprehensive action of heat, pressure, oxidation, catalyst and bacteria after petroleum deposits for hundreds of millions of years; preferably, the mineral asphalt is formed into fine particles after excavation, crushing and grinding, and is light brown; the content of general asphalt is between 20% and 30%, and the rest is limestone mineral substance. The mineral asphalt in the utility model is hard and uneven in block form in natural state, and the maximum moisture content is ≥10%, and is easy to stick together after crushing. The mineral asphalt has stability, oxidation resistance, weather resistance, strong anti-microbial corrosion resistance, and good compatibility with base asphalt, which overcomes the segregation problem of SBS polymer modifier. In the production process of the processing technology, the asphalt content and the isolation material will swell under a certain temperature, which is a key step to improve the performance of the waterproofing membrane product.
[0024] Compared with the prior art, the utility model has the following beneficial effects:
[0025] (1) The utility model solves the problem of high and uneven moisture content of mineral asphalt, which is difficult to process, based on the characteristics of mineral asphalt, and ensures that the technical indicators of finished products meet the requirements and have good stability.
[0026] (2) The process of the utility model solves the problems of easy sticking together of finished products during storage and low use efficiency, solves the safety risk, and improves the comprehensive efficiency of waterproofing membrane production and the application performance of products.
[0027] (3) The process of the utility model is cheaper than the existing process equipment, production efficiency is improved, energy consumption is low, and comprehensive cost is reduced;
[0028] (4) The utility model twice mixes, on one hand, makes moisture physically drop, does not need drying equipment, saves drying link energy consumption, on the other hand, solves the contradiction that the proportion of mineral pitch in the proportion of improving mixing is difficult to reach 45% in the proportion of easy bonding, makes mixing proportion more uniform. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 It is a mineral pitch processing system block diagram of an embodiment of the utility model;
[0030] Figure 2 It is a mineral pitch processing process route map provided by the utility model;
[0031] Figure 3 It is a waterproof roll structure schematic view provided by the utility model;
[0032] Wherein, 1 - upper cover surface isolation layer;2 - upper surface modified pitch coating layer;3 - intermediate reinforcing body layer;4 - lower surface modified pitch coating layer;5 - lower cover surface isolation layer. DETAILED DESCRIPTION
[0033] The specific embodiments of the utility model are described in detail below in combination with the drawings.
[0034] The utility model provides a kind of mineral pitch processing system, including the crushing component, mixing component, screening component and drying component that are sequentially arranged;
[0035] The crushing component sets raw material inlet, and the raw material inlet is used to add mineral pitch raw material;
[0036] The mixing component includes the first mixing module and the second mixing module that are continuously arranged, and the first mixing module and the second mixing module include isolation material A inlet and isolation material B inlet respectively, the isolation material A inlet is used to add isolation material A, and the isolation material B inlet is used to add isolation material B;Isolation material A and isolation material B all include one or more of hard pitch, filler and rubber powder;
[0037] The screening component sets size screening module and humidity screening module, and size screening and moisture content screening are carried out respectively, to obtain semi-finished product;
[0038] The drying component carries out drying treatment to mineral pitch screened by the screening component.
[0039] According to one specific implementation of the present application, the crushing assembly comprises a first crushing module, a second crushing module and a third crushing module arranged in sequence.
[0040] According to one specific implementation of the present application, the particle size obtained by the first crushing module is ≤500mm, the particle size obtained by the second crushing module is ≤200mm, and the particle size obtained by the third crushing module is ≤20mm.
[0041] According to one specific implementation of the present application, the particle size obtained by the first mixing module is 10-20mm, and the moisture content is ≤10%; the particle size obtained by the second mixing module is 10-20 mesh, and the moisture content is ≤7%.
[0042] According to one specific implementation of the present application, the particle size of the semi-finished product is ≤100 mesh, and the moisture content is ≤5%.
[0043] According to one specific implementation of the present application, the drying assembly comprises a first drying module and a second drying module arranged in sequence.
[0044] According to one specific implementation of the present application, the moisture content of the product after drying of the first drying module is ≤3.5%.
[0045] According to one specific implementation of the present application, the moisture content of the product after drying of the second drying module is ≤2%.
[0046] According to one specific implementation of the present application, it further comprises a weighing assembly connected with the mixing assembly, for weighing the weight of the intermediate product, isolation material A and isolation material B produced by the crushing assembly.
[0047] According to one specific implementation of the present application, the isolation material A accounts for 20-30% of the total weight of the intermediate product and isolation material A; the intermediate product accounts for 40-50% of the total weight of the intermediate product, isolation material A and isolation material B.
[0048] According to one specific implementation of the present application, the isolation material A accounts for 25% of the total weight of the intermediate product and isolation material A; the intermediate product accounts for 45% of the total weight of the intermediate product, isolation material A and isolation material B.
[0049] The present application also provides a waterproof roll material, which comprises an upper surface isolation layer 1, an upper surface modified asphalt coating layer 2, an intermediate reinforcing body layer 3, a lower surface modified asphalt coating layer 4 and a lower surface isolation layer 5; the upper surface modified asphalt coating layer material and the lower surface modified asphalt coating layer material both comprise the finished product EP made by the mineral asphalt processing system.
[0050] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. The present application can be changed and modified in various ways by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall fall within the scope of the present application.
Claims
1. A mineral pitch processing system characterized by, The mineral pitch processing system comprises a crushing assembly, a mixing assembly, a screening assembly and a drying assembly arranged in sequence. The crushing assembly is provided with a raw material inlet for adding mineral pitch raw material. The mixing assembly comprises a first mixing module and a second mixing module arranged in sequence, and the first mixing module and the second mixing module each comprises an isolation material A inlet and an isolation material B inlet, the isolation material A inlet is used for adding isolation material A, and the isolation material B inlet is used for adding isolation material B; the isolation material A and the isolation material B each comprises one of hard pitch, filler and rubber powder. The screening assembly is provided with a size screening module and a humidity screening module for size screening and moisture content screening respectively to obtain a semi-finished product. The drying assembly is used for drying the mineral pitch screened by the screening assembly to obtain a finished product EP.
2. The mineral pitch processing system of claim 1, wherein, The crushing assembly comprises a first crushing module, a second crushing module and a third crushing module arranged in sequence.
3. The mineral pitch processing system of claim 1, wherein, The drying assembly comprises a first drying module and a second drying module arranged in sequence.
4. The mineral pitch processing system of claim 1, wherein, The mineral pitch processing system further comprises a weighing assembly connected with the mixing assembly and used for weighing the intermediate product, the isolation material A and the isolation material B produced by the crushing assembly.
5. A waterproofing membrane characterized in that, The mineral pitch processing system comprises an upper surface isolation layer, an upper surface modified pitch coating layer, an intermediate reinforcing layer, a lower surface modified pitch coating layer and a lower surface isolation layer; the upper surface modified pitch coating layer and the lower surface modified pitch coating layer each comprises the finished product prepared by the mineral pitch processing system according to any one of claims 1-4.