Online blending device of asphalt product for waterproof material

Abstract

The utility model discloses an on-line blending device of an asphalt product for a waterproof material, and relates to the field of asphalt blending, and the on-line blending device comprises a first pipeline line with a feeding end communicated with an asphalt production device; the feeding end of the second pipeline line is communicated with the blended component production device; the static mixer is communicated with respective discharging ends of the first pipeline line and the second pipeline line; the feeding end of the third pipeline line is communicated with an outlet of the static mixer, and the discharging end of the third pipeline line is used for outputting an asphalt product which is blended on line and is used for the waterproof material; a first flow meter, a first regulating valve and a first one-way valve are sequentially arranged on the first pipeline; and a second flow meter, a second regulating valve and a second one-way valve are sequentially arranged on the second pipeline. The on-line asphalt blending device is suitable for preparing and using blended asphalt for waterproof materials in industrial use, and has the advantages of being simple in structure, high in efficiency, convenient to operate and the like.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt blending, and in particular to an online blending device for asphalt products used in waterproof materials. Background Art

[0002] Asphalt, a complex mixture of hydrocarbons and metal and non-metal derivatives, is used as the primary coating material for waterproofing membranes due to its excellent hydrophobic and corrosion-resistant properties. Currently, the asphalt used in waterproofing materials on the market is primarily a blend of road petroleum asphalt and a soft component. The penetration of this type of waterproofing asphalt is generally between 180 and 250, far exceeding that of road petroleum asphalt.

[0003] Figure 1 This is a schematic diagram of an existing in-tank asphalt blending production unit. 1 is the asphalt tank for collecting asphalt, 2 is the blending component tank for collecting blending components, and 3 is the finished blending tank. In the traditional asphalt blending production process, the asphalt raw material in tank 1 and the blending components (such as wax oil) in tank 2 are first poured into the finished blending tank 3. They are then stirred and blended in equal proportions in tank 3, and the product is then circulated within the blending tank and released.

[0004] Traditional blending techniques ensure the quality of the mixture by adjusting the ratio of raw asphalt to the total amount of oil fed into the blending components. However, this in-tank blending method is not only inefficient, but also difficult to precisely control the timing of raw asphalt addition and mixing, making it difficult to effectively guarantee the mixing effect and guaranteeing the quality of the blended asphalt. With the development of modern industry and the needs of the industry, the requirements for blended asphalt are becoming increasingly stringent, including the requirement for stable quality and high performance indicators for blended asphalt used in waterproofing materials. Therefore, research on online blending technology for this type of waterproofing asphalt is of great practical significance within the industry. Utility Model Content

[0005] In view of the above problems, the present application provides an online blending device for asphalt products for waterproof materials, so as to achieve online adjustment of the ratio of asphalt raw materials and blending components, thereby ensuring the stable quality of the blended asphalt products.

[0006] The present application provides an online mixing device for an asphalt product for waterproofing material, comprising:

[0007] A first pipeline line communicating with the asphalt production unit at its feed end;

[0008] A second pipeline line connected to the blending component production device at the feed end;

[0009] a static mixer in communication with the respective discharge ends of the first pipeline line and the second pipeline line;

[0010] A third pipeline line having a feed end connected to the outlet of the static mixer, wherein the discharge end of the third pipeline line is used to output the asphalt product for waterproofing material mixed online;

[0011] The first pipeline line is sequentially provided with a first flow meter, a first regulating valve and a first one-way valve; the second pipeline line is sequentially provided with a second flow meter, a second regulating valve and a second one-way valve.

[0012] In some embodiments of the present application, the first flow meter, the first regulating valve, the second flow meter and the second regulating valve are all controlled by a computer control unit.

[0013] In some embodiments of the present application, temperature measuring equipment is further provided on both the first pipeline line and the second pipeline line.

[0014] In some embodiments of the present application, the online blending device further includes: a plurality of finished product tanks connected to the discharge end of the third pipeline line; each of the finished product tanks is provided with a feed valve.

[0015] In some embodiments of the present application, the static mixer is horizontal and parallel to the pipeline line, and has left-handed and / or right-handed units inside.

[0016] In some embodiments of the present application, the online blending device is a constant pressure reduction device; the first pipeline line and the second pipeline line have the same configuration.

[0017] Compared with the prior art, the present application provides an online blending device for preparing asphalt products for waterproofing materials, the device comprising: a first pipeline line connected to an asphalt production device at its feed end, provided with a first flow meter, a first regulating valve and a first one-way valve; a second pipeline line connected to a blending component production device at its feed end, provided with a second flow meter, a second regulating valve and a second one-way valve; a static mixer connected to the respective discharge ends of the first pipeline line and the second pipeline line; a third pipeline line connected to the outlet of the static mixer at its feed end, the discharge end of the third pipeline line being used to output the online blended asphalt product for waterproofing materials. After the asphalt raw material is produced from the asphalt production device, it is led out through a pipeline line, passes through a flow meter and a regulating valve to control the flow of the asphalt raw material into the online blending device, and passes through a one-way valve to prevent the high-pressure and low-pressure situation of the two pipelines caused by operational errors, and enters the static mixer; at the same time, after the blending component is produced from the blending component production device, it is led out through another pipeline line, passes through a flow meter and a regulating valve to control the flow of the blending component into the online blending device, and passes through a one-way valve to prevent the high-pressure and low-pressure situation of the two pipelines caused by operational errors, and enters the static mixer; after the two materials enter the static mixer, the static mixer structure is used to fully mix the two materials, and the evenly mixed mixture is further mixed and transported through the pipeline line, and can enter the asphalt product finished tank, and be shipped after passing the inspection in the tank. The asphalt online blending device of the present application is suitable for the preparation and use of blended asphalt for waterproofing materials in industrial applications, and has the advantages of simple structure, high efficiency, and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages, and aspects of the various embodiments of the present application will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0019] Figure 1 A schematic diagram of an existing production unit for in-tank blended asphalt products;

[0020] Figure 2 A schematic structural diagram of an online blending device for an asphalt product for waterproofing material provided in an embodiment of the present application;

[0021] Reference numerals:

[0022] 1-first pipeline line; 2-second pipeline line; 3-static mixer; 4-third pipeline line; 5-finished product tank; 11-first flow meter; 12-first regulating valve; 13-first one-way valve; 21-second flow meter; 22-second regulating valve; 23-second one-way valve. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation methods of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application. It is known to those skilled in the art that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0024] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, and this is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0025] The present application provides an online mixing device for an asphalt product for waterproofing materials, comprising:

[0026] A first pipeline line communicating with the asphalt production unit at its feed end;

[0027] A second pipeline line connected to the blending component production device at the feed end;

[0028] a static mixer in communication with the respective discharge ends of the first pipeline line and the second pipeline line;

[0029] A third pipeline line having a feed end connected to the outlet of the static mixer, wherein the discharge end of the third pipeline line is used to output the asphalt product for waterproofing material mixed online;

[0030] The first pipeline line is sequentially provided with a first flow meter, a first regulating valve and a first one-way valve; the second pipeline line is sequentially provided with a second flow meter, a second regulating valve and a second one-way valve.

[0031] See also Figure 2 , Figure 2 The schematic diagram of the structure of an online blending device for asphalt products used in waterproof materials is shown. The device may include a first pipeline line 1, a second pipeline line 2, a static mixer 3, a third pipeline line 4 and a finished product tank 5.

[0032] The feed end of the first pipeline line 1 is connected to the asphalt production device and is used to introduce asphalt raw materials produced by fractionation. The asphalt raw materials are generally 70# base asphalt with a needle penetration (0.1mm) of 60-80 at 25°C and a minimum dynamic viscosity of 180 Pa·s at 60°C.

[0033] The specific indicators of the 70# asphalt described in the examples of this application are as follows:

[0034] Table 1 70# asphalt indexes of the present application examples

[0035]

[0036] The first pipeline 1 is sequentially provided with a first flowmeter 11, a first regulating valve 12, and a first one-way valve 13. After being produced by the asphalt production unit, the asphalt feedstock is drawn through the first pipeline 1, passes through the first flowmeter 11 and the first regulating valve 12 to control the flow rate of the asphalt feedstock into the online blending unit, and then passes through the first one-way valve 13 to be discharged into the static mixer 3. Furthermore, the first flowmeter 11 and the first regulating valve 12 are controlled by a computer control unit. Furthermore, a temperature measuring device is also provided on the first pipeline 1, also controlled by the computer control unit.

[0037] At the same time, the feed end of the second pipeline line 2 is connected to the blending component production device for introducing the blending component produced by fractionation. The blending component is generally wax oil, which requires a flash point of not less than 200°C; the kinematic viscosity of wax oil at 40°C is 80-200mm 2 / s. The blending components and asphalt raw materials involved in this application are all produced by the previous device itself, and are directly introduced into the online blending device through the pipeline, without the need for additional external procurement additives. In addition, the second pipeline line 2 is sequentially provided with a second flow meter 21, a second regulating valve 22 and a second one-way valve 23; after the blending components are produced by the blending component production device, they are led out through the second pipeline line 2, and pass through the second flow meter 21 and the second regulating valve 22 to control the flow of the blending components entering the online blending device, and are discharged after passing through the second one-way valve 23 and enter the static mixer 3. The embodiment of the present application uses the flow meter and the regulating valve to control the material flow, and the one-way valve provided can prevent the situation where the two pipelines have high pressure and low pressure due to operational errors, thereby improving the operating stability of the device.

[0038] Preferably, the first pipeline line 1 and the second pipeline line 2 in the embodiment of the present application have the same configuration. For example, the pipeline material can be 20# steel, and there is no requirement for the aspect ratio. However, the diameter ratio of the asphalt pipeline to the wax oil pipeline is not more than 2:1 at the minimum and not more than 6:1 at the maximum. Both pipelines need to be insulated, and the insulation structure is ordinary rock wool and aluminum insulation. The pipeline material can be 20# steel, the specification used is GB12459II series, and the maximum pressure bearing capacity of the pipe fittings used is PN25. Furthermore, a temperature measuring device is also provided on the second pipeline line 2; the temperature measuring device, the second flow meter 21, and the second regulating valve 22 are all controlled by the computer control unit. Specifically, the online blending device described in the present application is generally a constant pressure reduction device. The embodiment of the present application mainly controls the flow, temperature, pressure and other parameters of the two materials, the asphalt raw material and the blending component, through the computer control unit, so as to realize online adjustment of the ratio of the asphalt raw material and the blending component; the advantage of this technology is that it facilitates uniform mixing, shortens the mixing time, and thus improves production efficiency.

[0039] After the asphalt feedstock and blending components enter static mixer 3, they are thoroughly mixed by the mixer's structure. The mixture is then directly mixed within third pipeline 4, enabling online adjustment of the ratio of the asphalt feedstock to the blending components, thereby ensuring the consistent quality of the blended asphalt used in waterproofing materials.

[0040] The online blending device preferably further includes: a plurality of finished product tanks 5 connected to the discharge end of the third pipeline 4; each of the finished product tanks is equipped with a feed valve. Furthermore, the resulting blended asphalt product is transported through the third pipeline 4 into the finished product tanks 5 for testing to obtain a qualified finished product.

[0041] This application mixes the asphalt feedstock and blending components directly within the blending device pipeline, reducing separation and waste between the asphalt feedstock and blending components. This reduces the time required to transfer the oil from the collection tank to the blending tank, as well as the time required to ensure uniform circulation within the blending tank. It also reduces heat loss and energy consumption in the previous production method. The advantages of this technology are uniform mixing, and the ratio of the asphalt feedstock and blending components can be adjusted directly online, ensuring stable product quality.

[0042] In some embodiments of the present application, the static mixer 3 is horizontal and parallel to the pipeline line, and has left-handed and / or right-handed units inside; commercially available equipment can be used. Specifically, an SV type (single spiral) static mixer can be used, and its structural features include: the SV type static mixer is composed of a single spiral mixing element installed in the pipeline at a certain distance. The mixing element is usually twisted with a metal sheet or a plastic sheet, and its spiral shape can guide the fluid to produce a rotational motion; when the fluid passes through, it will be divided into several tributaries under the action of the spiral element. These tributaries flow along the spiral channel and are constantly divided and recombined during the rotation process, thereby achieving uniform mixing. Furthermore, a DN200PN25 static mixer is selected and the material is 20# steel.

[0043] For example, the material of the third pipeline line 4 is 20# steel, which can meet the requirements. The selected production medium does not have corrosive materials, and there is no need to use stainless steel, etc. The embodiment of the present application optimizes the design of the waterproof asphalt online mixing technology to make it more efficient, stable and reliable.

[0044] The raw material components of the embodiment of the present application are directly mixed within the asphalt blending device pipeline, allowing the direct output of waterproof asphalt products. Furthermore, the online blending device of the present application can produce a variety of blended asphalt grades by precisely controlling the ratio of the two blending materials. This improvement utilizes a technical approach that controls the feed flow ratio of the two blending materials to produce a variety of blended asphalt grades, significantly reducing grade conversion time and tank occupancy.

[0045] In order to better understand the technical content of this application, specific embodiments are provided below to further illustrate this application.

[0046] Example

[0047] After being produced by the asphalt production unit, the 70# base asphalt is drawn from the pipeline, passes through a flow meter and a regulating valve to control the flow of the asphalt raw material into the online blending unit, and then passes through a one-way valve before being discharged into the static mixer. Simultaneously, the wax oil produced by the blending component production unit is drawn from another identically configured pipeline, passes through a flow meter and a regulating valve to control the flow of the blending component into the online blending unit, and then passes through a one-way valve before entering the static mixer. Once the two materials enter the static mixer, the structure of the static mixer allows them to be thoroughly mixed. The evenly mixed mixture is then further mixed and transported through the pipeline to the finished asphalt tank.

[0048] All pipelines are made of 20# steel, using a DN200PN25 static mixer, also made of 20# steel. Flow meters, regulating valves, and check valves are conventional fittings. The mass ratio of 70# base asphalt to wax oil is approximately 6:4, and the total flow rate is controlled at 20 tonnes / hour.

[0049] The test results inside the tank are as follows, and the test is qualified.

[0050] Table 2 Product testing index results

[0051]

[0052] The original production method of in-tank blending process is as follows:

[0053] Tank blending produces 7,000 tons in 10 days;

[0054] Daily production: 7,000 tons are produced in 10 days, so daily production = 7,000 ÷ 10 = 700 tons / day;

[0055] Hourly production (based on 24 hours a day): 700÷24≈29.17 tons / hour.

[0056] Analysis of online blending production capacity: online blending is 60 tons / hour.

[0057] Comparative Analysis

[0058] Hourly output comparison: Online blending (60 tons / hour) produces more than tank blending (approximately 29.17 tons / hour). The hourly output of online blending is 60 ÷ 29.17, which is 2.0 times the hourly output of tank blending. This indicates that online blending is more efficient per unit time and can produce more product in a shorter period of time.

[0059] Comparing the time required to produce a certain amount of product: To produce 7,000 tons of product, tank blending requires 10 days. For online blending, the time required to produce 7,000 tons = 7,000 ÷ 60 = 116.67 hours; converted to days (24 hours per day), 116.67 ÷ 24 = 4.86 days. Therefore, to produce the same amount of product, online blending requires far less time, only approximately 4.86 days, while tank blending takes 10 days.

[0060] As can be seen from the above, the present application specifically relates to an online blending device and technology for asphalt products for waterproof materials. Compared with traditional blending technology, this technology mainly avoids the problem of difficult control of asphalt addition time and stirring time in traditional technology by mixing asphalt raw materials and blending components directly in the pipeline and controlling the flow rate, etc., and can realize online adjustment of the ratio of asphalt raw materials and blending components. The asphalt online blending technology of the embodiment of the present application also includes the regulation of mixing pressure and mixing speed to further ensure the quality and stability of the blended asphalt product. The asphalt online blending technology of the present application is suitable for the preparation and use of blended asphalt for waterproof materials in industrial use. The production is completed in a set of constant pressure reduction equipment, and has the advantages of simple structure, high efficiency, and easy operation. The various improved technologies adopted in this application jointly improve the quality and stability of the product, reduce production costs, and have high practical value.

[0061] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the device technology and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the application's concepts and technical solutions to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. An online blending device for asphalt products for waterproof materials, characterized in that: include: A first pipeline line communicating with the asphalt production unit at its feed end; A second pipeline line connected to the blending component production device at the feed end; a static mixer in communication with the respective discharge ends of the first pipeline line and the second pipeline line; A third pipeline line having a feed end connected to the outlet of the static mixer, wherein the discharge end of the third pipeline line is used to output the asphalt product for waterproofing material mixed online; The first pipeline line is sequentially provided with a first flow meter, a first regulating valve and a first one-way valve; the second pipeline line is sequentially provided with a second flow meter, a second regulating valve and a second one-way valve.

2. The online blending device according to claim 1, characterized in that: The first flow meter, the first regulating valve, the second flow meter and the second regulating valve are all controlled by a computer control unit.

3. The online blending device according to claim 1, characterized in that: The first pipeline line and the second pipeline line are both provided with temperature measuring equipment.

4. The online blending device according to any one of claims 1 to 3, characterized in that: Also includes: A plurality of finished product tanks are connected to the discharge end of the third pipeline; each of the finished product tanks is provided with a feed valve.

5. The online blending device according to any one of claims 1 to 3, characterized in that: The static mixer is horizontal and parallel to the pipeline, and has left-hand and / or right-hand units inside.

6. The online blending device according to any one of claims 1 to 3, characterized in that: The online blending device is a constant pressure reduction device; the first pipeline line and the second pipeline line have the same configuration.

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