Cosolvent feeding device

Abstract

The utility model relates to the technical field of modified asphalt production, in particular to a cosolvent feeding device. The cosolvent feeding device comprises a heating tank and a solid-phase storage tank, the heating tank is connected with a solid-liquid mixing tank through a filter, the solid-liquid mixing tank is connected with a reaction kettle through a premixing tank, the reaction kettle is connected with a development tank through a colloid mill, and the solid-phase storage tank is connected with the premixing tank through a screw feeder. And a heating tank coil pipe is arranged in the heating tank and is connected with a liquid-phase cosolvent inlet pipeline. According to the device, reasonable pipeline connection and feeding equipment are arranged, when a solid phase is independently fed, the solid phase cosolvent in the solid phase storage tank is accurately conveyed to the solid feeder through the spiral feeder, then dispersed feeding is performed through the solid feeder, and smooth feeding is ensured; when solid and liquid need to be added, the liquid-phase cosolvent is firstly conveyed to the premixing tank, then the solid and the liquid are mixed in the solid-liquid mixing tank and then are added together, the whole feeding process is compact, the feeding efficiency is greatly improved, and the production period is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of modified asphalt production, and specifically to a solubilizing agent feeding device. BACKGROUND

[0002] Modified asphalt is a new type of asphalt material that improves its performance by adding various modifiers, solubilizing agents and other materials based on ordinary asphalt. In the production process of modified asphalt, solubilizing agents play a crucial role in improving the solubility and dispersibility of modifiers in asphalt, thereby improving the quality of modified asphalt. Solubilizing agents have liquid and solid phases, and solubilizing agents of different phases face many challenges during feeding.

[0003] Currently, the existing solubilizing agent feeding device has a series of problems in the production of modified asphalt. First, the feeding efficiency is low, as the device structure design is unreasonable or the feeding method is improper, which causes the solubilizing agent to be unable to enter the reaction system quickly and smoothly, prolonging the production cycle and reducing the production efficiency. Second, impurities are easily mixed in during feeding, and the existing filtering device has poor effect and cannot effectively remove impurities in the solubilizing agent, which will affect the quality of modified asphalt and reduce its stability and durability. Third, the solid-phase solubilizing agent after feeding is not evenly dispersed, which causes the performance of modified asphalt to differ at different parts, affecting the consistency and reliability of the product. Finally, the waste heat utilization rate is low, and a large amount of waste heat generated during production cannot be fully recovered and utilized, causing energy waste and increasing production cost. SUMMARY

[0004] In view of the above deficiencies in the prior art, the purpose of the utility model is to provide a solubilizing agent feeding device, which is connected by reasonable pipelines and feeding equipment. When solid-phase solubilizing agent is fed alone, the screw feeder accurately transports the solid-phase solubilizing agent in the solid-phase storage tank to the solid feeder, and then disperses the feeding through the solid feeder to ensure smooth feeding. When both liquid-phase and solid-phase solubilizing agents are needed, the liquid-phase solubilizing agent is first transported to the premixing tank, and then the liquid and solid are mixed in the solid-liquid mixing tank before being added together. The whole feeding process is compact, greatly improving the feeding efficiency and shortening the production cycle.

[0005] The utility model is implemented by adopting the following technical solutions:

[0006] The auxiliary solvent feeding device comprises a temperature raising tank, a solid phase storage tank, the temperature raising tank is connected with the solid-liquid mixing tank through a filter, the solid-liquid mixing tank is connected with the reaction kettle through a premixing tank, the reaction kettle is connected with the development tank through a colloid mill, and the solid phase storage tank is connected with the premixing tank through a screw feeder.

[0007] The temperature raising tank is connected with a liquid phase auxiliary solvent inlet pipeline, the temperature raising tank is internally provided with a temperature raising tank coil pipe, and the development tank is internally provided with a development tank coil pipe.

[0008] The filter is internally provided with a filter plate, and the lower portion of the filter plate is provided with a rotating scraper driven by a driving motor.

[0009] The connection between the temperature raising tank and the filter is located below the filter plate, and the connection between the solid-liquid mixing tank and the filter is located above the filter plate.

[0010] The solid phase storage tank is connected with the solid-liquid mixing tank through a pipeline, the premixing tank is provided with a solid feeder and an asphalt feeding port, and the screw feeder is connected with the solid feeder through a pipeline.

[0011] The premixing tank is internally provided with a premixing tank coil pipe, the reaction kettle is internally provided with a reaction kettle coil pipe, and the reaction kettle coil pipe is connected with the premixing tank coil pipe through a connecting pipeline. The premixing tank is internally provided with a premixing tank coil pipe, and is provided with a solid feeder, an asphalt feeding port, and is connected with the solid-liquid mixing tank and the reaction kettle through a pipeline. The premixing tank coil pipe can adjust the temperature, the solid feeder is used for supplementing the solid phase auxiliary solvent, and the asphalt feeding port facilitates the addition of asphalt, realizes the further mixing of various materials, and improves the uniformity of the materials.

[0012] The working principle of the utility model is as follows:

[0013] The liquid phase auxiliary solvent is conveyed to the temperature raising tank through the liquid phase auxiliary solvent inlet pipeline. The temperature raising tank coil pipe is turned on to heat the liquid phase auxiliary solvent, the heating temperature is set according to the characteristics of the liquid phase auxiliary solvent, the liquid phase auxiliary solvent reaches the appropriate fluidity, and the subsequent conveying and mixing are facilitated. The heated liquid phase auxiliary solvent enters the filter from the temperature raising tank, impurities are intercepted under the action of the filter plate. The rotating scraper timely cleans the impurities on the filter plate, and the filtering effect is ensured. The filtered liquid phase auxiliary solvent enters the solid-liquid mixing tank.

[0014] If the solid-phase auxiliary solvent needs to be added, the solid-phase auxiliary solvent in the solid-phase storage tank is conveyed to the solid feeder by the screw feeder and enters the premixing tank; if both solid and liquid auxiliary solvents need to be added, a part of the liquid phase is first added to the premixing tank, and then the solid-phase auxiliary solvent enters the solid-liquid mixing tank and is mixed with the liquid-phase auxiliary solvent. The stirring device of the solid-liquid mixing tank is turned on to fully mix the solid and liquid. The solid-liquid mixture enters the premixing tank from the solid-liquid mixing tank, and the coil of the premixing tank is turned on for further stirring and mixing. At the same time, the asphalt enters the premixing tank through the asphalt inlet and is mixed with the solid-liquid mixture again. After uniform mixing, the material enters the reaction kettle. In the reaction kettle, the coil of the reaction kettle is turned on to control the reaction temperature and reaction time. After the reaction is completed, the material is ground by the colloid mill to make the particle size of the material meet the specified requirements. The ground material enters the development tank, and the coil of the development tank is turned on for development to make the performance of the modified asphalt more stable. After the development is completed, the material is discharged from the development tank to obtain the finished modified asphalt.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) By setting reasonable pipeline connection and feeding equipment, when the solid phase is fed alone, the screw feeder accurately conveys the solid-phase auxiliary solvent in the solid-phase storage tank to the solid feeder, and then the solid-phase auxiliary solvent is dispersed by the solid feeder to ensure smooth feeding; when both solid and liquid need to be added, the liquid-phase auxiliary solvent is first conveyed to the premixing tank, and then the solid and liquid are mixed in the solid-liquid mixing tank and added together, the whole feeding process is compact, and the feeding efficiency is greatly improved, and the production cycle is shortened.

[0017] (2) The filter plate can effectively intercept impurities in the auxiliary solvent, and the rotary scraper can clean the impurities on the filter plate in a timely manner under the drive of the driving motor, so that the influence of the impurity accumulation on the filtering effect is prevented, thereby ensuring that the impurity content of the auxiliary solvent entering the subsequent reaction system is extremely low, and the quality stability of the modified asphalt is improved.

[0018] (3) In the solid-liquid mixing tank, the solid-phase auxiliary solvent and the liquid-phase auxiliary solvent can be preliminarily mixed, and then further stirred and mixed in the premixing tank, so that the solid-phase auxiliary solvent is more uniformly dispersed in the liquid-phase auxiliary solvent. After entering the reaction kettle, the mixture is further reacted under the action of the coil of the reaction kettle, so that the uniform dispersion of the solid-phase auxiliary solvent in the whole reaction system is ensured, and the consistency of the performance of the modified asphalt is improved.

[0019] (4) By transferring the waste heat from the development tank coil to the heating tank, and using the waste heat from the reactor coil to heat the premixing tank, heat that would otherwise be wasted is reused. This reduces reliance on external energy sources during the heating of the liquid-phase co-solvent and the maintenance of the reaction temperature of the materials in the premixing tank. In the heating tank, the waste heat transferred from the development tank allows the liquid-phase co-solvent to reach the appropriate flow temperature more quickly, reducing the energy consumption required for separate heating of the heating tank coil and thus lowering the overall energy cost of the production process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the solvent feeding device of this utility model;

[0021] In the diagram: 1. Heating tank; 2. Filter; 3. Solid-liquid mixing tank; 4. Premixing tank; 5. Reactor; 6. Colloid mill; 7. Development tank; 8. Solid storage tank; 9. Heating tank coil; 10. Liquid phase co-solvent inlet pipe; 11. Filter plate; 12. Rotary scraper; 13. Screw feeder; 14. Solid feeder; 15. Premixing tank coil; 16. Development tank coil; 17. Heating pipe; 18. Connecting pipe; 19. Asphalt inlet. Detailed Implementation

[0022] To make the objectives and technical solutions of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1 As shown, Figure 1As shown, the cosolvent feeding device comprises a warming tank 1, a solid-phase storage tank 8, the warming tank 1 is connected with a solid-liquid mixing tank 3 through a filter 2, the solid-liquid mixing tank 3 is connected with a reaction kettle 5 through a premixing tank 4, the reaction kettle 5 is connected with a development tank 7 through a colloid mill 6, and the solid-phase storage tank 8 is connected with the premixing tank 4 through a screw feeder 13. The warming tank 1 is connected with a liquid-phase cosolvent inlet pipeline 10, the inside of the warming tank 1 is provided with a warming tank coil 9, the inside of the development tank 7 is provided with a development tank coil 16, and the development tank coil 16 is connected with the warming tank coil 9 through a warming pipeline 17. The inside of the filter 2 is provided with a filter plate 11, and the lower side of the filter plate 11 is provided with a rotating scraper 12 driven by a driving motor. The filter plate 11 effectively filters impurities, and the rotating scraper 12 timely cleans the impurities, so as to ensure that the cosolvent entering the subsequent process is pure and improve the product quality. The connection between the warming tank 1 and the filter 2 is located below the filter plate 11, and the connection between the solid-liquid mixing tank 3 and the filter 2 is located above the filter plate 11. The solid-phase storage tank 8 is connected with the solid-liquid mixing tank 3 through a pipeline, the premixing tank 4 is provided with a solid feeder 14 and an asphalt feeding port 19, and the screw feeder 13 is connected with the solid feeder 14 through a pipeline. The inside of the premixing tank 4 is provided with a premixing tank coil 15, the inside of the reaction kettle 5 is provided with a reaction kettle coil, and the reaction kettle coil is connected with the premixing tank coil 15 through a connecting pipeline 18. The premixing tank coil 15 can adjust the temperature, the solid feeder 14 is used for supplementing solid-phase cosolvent, the asphalt feeding port 19 is convenient for adding asphalt, realizes further mixing of various materials, and improves the uniformity of the materials.

[0025] The cosolvent feeding device comprises the following steps during work:

[0026] (1) Liquid phase co-solvent is transported into the heating tank 1 through the liquid phase co-solvent inlet pipeline 10. The heating coil 9 of the heating tank is turned on to heat the liquid phase co-solvent. The heating temperature is set according to the characteristics of the liquid phase co-solvent to make the liquid phase co-solvent have appropriate fluidity, which is convenient for subsequent transportation and mixing. The heated liquid phase co-solvent enters the filter 2 from the heating tank 1. Under the action of the filter plate 11, impurities are intercepted. The rotary scraper 12 cleans the impurities on the filter plate 11 in time to ensure the filtering effect. The filtered liquid phase co-solvent enters the solid-liquid mixing tank 3.(2) If solid phase co-solvent needs to be added, the solid phase co-solvent in the solid phase storage tank 8 is transported to the solid feeder 14 through the screw feeder 13 and enters the premixing tank 4. If both solid and liquid co-solvents need to be added, a part of the liquid phase is first added to the premixing tank 4, and then the solid phase co-solvent is added to the solid-liquid mixing tank 3 to mix with the liquid phase co-solvent. The stirring device of the solid-liquid mixing tank 3 is turned on to fully mix the solid and liquid. The solid-liquid mixture enters the premixing tank 4 from the solid-liquid mixing tank 3. The premixing tank coil 15 is turned on for further stirring and mixing. At the same time, the asphalt enters the premixing tank 4 through the asphalt inlet 19 to mix with the solid-liquid mixture again. After uniform mixing, the material enters the reaction kettle 5. In the reaction kettle 5, the reaction kettle coil is turned on to control the reaction temperature and reaction time.(3) After the reaction is completed, the material is ground by the colloid mill 6 to make the particle size of the material meet the specified requirements. The ground material enters the development tank 7. The development tank coil 16 is turned on for development to make the performance of the modified asphalt more stable. After development is completed, the material is discharged from the development tank 7 to obtain the finished modified asphalt.

Claims

1. A hydrotrope feed device characterized by, The application relates to a solid-liquid mixing device, which comprises a heating tank (1), a solid-phase storage tank (8), a filter (2), a solid-liquid mixing tank (3), a premixing tank (4), a reaction kettle (5), a colloid mill (6) and a development tank (7).

2. The solubilizing agent feeding device according to claim 1, characterized by The heating tank (1) is connected with a liquid-phase auxiliary solvent inlet pipeline (10), the inside of the heating tank (1) is provided with a heating tank coil (9), the inside of the development tank (7) is provided with a development tank coil (16), and the development tank coil (16) is connected with the heating tank coil (9) through a heating pipeline (17).

3. The solubilizing agent feeding device according to claim 1, characterized by The inside of the filter (2) is provided with a filter plate (11), and the lower portion of the filter plate (11) is provided with a rotating scraper (12) driven by a driving motor.

4. The solubilizing agent feeding device according to claim 3, characterized in that, The connection between the heating tank (1) and the filter (2) is located below the filter plate (11), and the connection between the solid-liquid mixing tank (3) and the filter (2) is located above the filter plate (11).

5. The solubilizing agent feeding device according to claim 1, wherein The solid-phase storage tank (8) is connected with the solid-liquid mixing tank (3) through a pipeline, the premixing tank (4) is provided with a solid feeder (14) and an asphalt feeding port (19), and the screw feeder (13) is connected with the solid feeder (14) through a pipeline.

6. The solubilizing agent feeding device according to claim 1, characterized by The inside of the premixing tank (4) is provided with a premixing tank coil (15), the inside of the reaction kettle (5) is provided with a reaction kettle coil, and the reaction kettle coil is connected with the premixing tank coil (15) through a connecting pipeline (18).

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