A water washing system
Patent Information
- Application Number
- CN202522375815.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-10
AI Technical Summary
[0003]然而，现有树脂生产装置的水洗系统存在一些不足，例如，由于待水洗物料中的氯离子含量较高，而水洗系统并无法充分地洗除氯离子，水洗系统中氯离子含量的上升，会对输送管道和换热器等关键部件造成腐蚀，还可能与系统重的氨发生化学反应而产生铵盐，堵塞输送管道或换热器等，从而影响水洗系统的正常、稳定运行，此外，还会导致最终成品树脂的氯含量超标，既影响树脂的生产质量，又会加重成品罐罐顶的腐蚀情况
本实用新型提供的水洗系统，通过在第一急冷沉降槽与第二急冷沉降槽之间设置第一静态混合器、在第二急冷沉降槽与第三急冷沉降槽之间设置第二静态混合器、以及在第三急冷沉降槽与第四急冷沉降槽之间设置第三静态混合器，可以使待水洗物料在进入第二急冷沉降槽、第三急冷沉降槽和第四急冷沉降槽之前能够与水洗介质充分混合，从而提高水洗效率以及增强水洗效果，使待水洗物料中的氯离子能够被充分去除，有效降低水洗系统的氯含量，进而降低水洗系统以及下游生产系统的腐蚀风险和堵塞风险，确保水洗系统的正常、稳定运行，同时还有利于提高成品树脂的生产质量。
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Figure CN224822202U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of petrochemical production equipment, and specifically relates to a water washing system. Background Technology
[0002] In the production process of petroleum resins, a mixture of materials (isoprene, monoolefins, styrene, etc.) from the water-oil separator is fed into the polymerization reactor in a specific ratio. A catalyst (such as aluminum trichloride) is added through a catalyst metering system and combines with the polymerization liquid, which is cooled by external circulation, and then continuously injected into the polymerization reactor to participate in the chemical reaction. After the reaction is complete, the polymer is mixed with washing water and a demulsifier and sent to an immersion tank to terminate the reaction. It then undergoes several stages of rapid cooling and settling tanks for washing before finally entering the stripping unit for refining.
[0003] However, the existing washing system of resin production equipment has some shortcomings. For example, due to the high chloride ion content in the material to be washed, the washing system cannot fully remove the chloride ions. The increase in chloride ion content in the washing system can cause corrosion to key components such as conveying pipelines and heat exchangers. It may also react chemically with the ammonia in the system to produce ammonium salts, which can block conveying pipelines or heat exchangers, thus affecting the normal and stable operation of the washing system. In addition, it can also lead to excessive chloride content in the final resin, which not only affects the production quality of the resin but also aggravates the corrosion of the top of the finished product tank. Utility Model Content
[0004] To address the shortcomings of the prior art, this utility model provides a water washing system that improves the uniformity and thoroughness of mixing between the material to be washed and the washing medium by setting up a first static mixer, a second static mixer, and a third static mixer, thereby improving washing efficiency, enhancing washing effect, effectively reducing the chlorine content of the water washing system, and reducing the risk of system corrosion and blockage.
[0005] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides a water washing system, including a first rapid cooling settling tank, a second rapid cooling settling tank, a third rapid cooling settling tank and a fourth rapid cooling settling tank connected in sequence. A first static mixer is provided between the output port of the first quench settling tank and the input port of the second quench settling tank; a second static mixer is provided between the output port of the second quench settling tank and the input port of the third quench settling tank; and a third static mixer is provided between the output port of the third quench settling tank and the input port of the fourth quench settling tank. The first, second, and third static mixers are all used for mixing the material to be washed with the washing medium.
[0006] As a further description of the technical solution of this utility model, the first static mixer is provided with a first input port, a second input port and a first output port. The first input port is connected to the output port of the first quench settling tank, the first output port is connected to the input port of the second quench settling tank, and the second input port is used for inputting alkali solution.
[0007] As a further description of the technical solution of this utility model, the second static mixer is provided with a third input port, a fourth input port and a second output port. The third input port is connected to the output port of the second quench settling tank, and the second output port is connected to the input port of the third quench settling tank. The fourth input port is used for inputting alkali solution.
[0008] As a further description of the technical solution of this utility model, the third static mixer is provided with a fifth input port, a sixth input port and a third output port. The fifth input port is connected to the output port of the third rapid cooling settling tank, the third output port is connected to the input port of the fourth rapid cooling settling tank, and the sixth input port is used for hot water input.
[0009] As a further description of the technical solution of this utility model, both the first static mixer and the second static mixer are provided with a plurality of first mixing units inside, and the plurality of first mixing units are connected in series. The first mixing unit is an SK type mixing unit.
[0010] As a further description of the technical solution of this utility model, the third static mixer is provided with a plurality of second mixing units and a plurality of third mixing units in sequence inside, the plurality of second mixing units are connected in series, and the plurality of third mixing units are connected in series.
[0011] As a further description of the technical solution of this utility model, the second mixing unit is an SK-type mixing unit, and the third mixing unit is an SX-type mixing unit.
[0012] As a further description of the technical solution of this utility model, the water washing system also includes an immersion tank and a fourth static mixer. The fourth static mixer is provided with a seventh input port, an eighth input port and a fourth output port. The seventh input port is used for inputting the reaction products of the upstream reactor, the eighth input port is used for inputting hot water and demulsifier, the fourth output port is connected to the input port of the immersion tank, and the output port of the immersion tank is connected to the input port of the first quench settling tank.
[0013] As a further description of the technical solution of this utility model, the fourth static mixer is provided with a plurality of fourth mixing units and a plurality of fifth mixing units in sequence inside, the plurality of fourth mixing units are connected in series, and the plurality of fifth mixing units are connected in series.
[0014] As a further description of the technical solution of this utility model, the fourth mixing unit is an SK-type mixing unit, and the fifth mixing unit is an SX-type mixing unit.
[0015] In summary, this utility model has at least the following advantages: The water washing system provided by this utility model, by setting a first static mixer between the first and second rapid cooling settling tanks, a second static mixer between the second and third rapid cooling settling tanks, and a third static mixer between the third and fourth rapid cooling settling tanks, allows the material to be washed to be fully mixed with the washing medium before entering the second, third, and fourth rapid cooling settling tanks. This improves the washing efficiency and enhances the washing effect, ensuring that chloride ions in the material to be washed are fully removed, effectively reducing the chlorine content of the washing system. This, in turn, reduces the corrosion and blockage risks of the washing system and downstream production systems, ensuring the normal and stable operation of the washing system. Furthermore, it also helps improve the production quality of the finished resin. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the water washing system of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of the first static mixer in Embodiment 2 of this utility model; Figure 3 This is a schematic diagram of the structure of the second static mixer in Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of the structure of the third static mixer in Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the water washing system of Embodiment 3 of this utility model; Figure 6 This is a schematic diagram of the fourth static mixer in Embodiment 3 of this utility model.
[0017] Marked in the image: 1. First rapid cooling settling tank; 2. Second rapid cooling settling tank; 3. Third rapid cooling settling tank; 4. Fourth rapid cooling settling tank; 5. First static mixer; 51. First input port; 52. Second input port; 53. First output port; 54. First mixing unit; 6. Second static mixer; 61. Third input port; 62. Fourth input port; 63. Second output port; 7. Third static mixer; 71. Fifth input port; 72. Sixth input port; 73. Third output port; 74. Second mixing unit; 75. Third mixing unit; 8. Immersion tank; 9. Fourth static mixer; 91. Seventh input port; 92. Eighth input port; 93. Fourth output port; 94. Fourth mixing unit; 95. Fifth mixing unit. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.
[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0020] Example 1 refer to Figure 1 The washing system provided in this embodiment includes a first rapid cooling settling tank 1, a second rapid cooling settling tank 2, a third rapid cooling settling tank 3, and a fourth rapid cooling settling tank 4 connected in sequence. All four tanks are used for washing operations. A first static mixer 5 is installed between the output port of the first rapid cooling settling tank 1 and the input port of the second rapid cooling settling tank 2; a second static mixer 6 is installed between the output port of the second rapid cooling settling tank 2 and the input port of the third rapid cooling settling tank 3; and a third static mixer 7 is installed between the output port of the third rapid cooling settling tank 3 and the input port of the fourth rapid cooling settling tank 4.
[0021] It is understood that the first static mixer 5, the second static mixer 6, and the third static mixer 7 are all provided with ports for inputting the washing medium. The first static mixer 5 can achieve full mixing of the material to be washed and the washing medium before entering the second quench settling tank 2. The second static mixer 6 can achieve full mixing of the material to be washed and the washing medium before entering the third quench settling tank 3. The third static mixer 7 can achieve full mixing of the material to be washed and the washing medium before entering the fourth quench settling tank 4. The washing medium can be alkaline solution or hot water.
[0022] By setting up the first static mixer 5, the second static mixer 6, and the third static mixer 7, the material to be washed can be fully mixed with the washing medium before entering the second rapid cooling settling tank 2, the third rapid cooling settling tank 3, and the fourth rapid cooling settling tank 4. Improving the uniformity and thoroughness of mixing between the material and the washing medium enhances washing efficiency and effectiveness, effectively removing chloride ions from the material, thereby reducing the chlorine content of the washing system. This effectively reduces the risk of clogging and corrosion, lowers system maintenance costs, ensures normal and stable operation of the washing system, and improves the quality of the final resin product.
[0023] Example 2 As a further optimization of Example 1, in Figure 1 Based on, refer to Figures 2 to 4 The first static mixer 5 is provided with a first input port 51, a second input port 52, and a first output port 53. The first input port 51 and the first output port 53 are located at the left and right ends of the first static mixer 5, respectively. The second input port 52 is located at the top of the first static mixer 5 and close to the first input port 51. The first input port 51 is connected to the output port of the first rapid cooling settling tank 1, and the first output port 53 is connected to the input port of the second rapid cooling settling tank 2. The second input port 52 is used for inputting alkali solution. By setting the first input port 51 and the first output port 53 at the left and right ends of the first static mixer 5, the convection of the material to be washed and the alkali solution can be promoted, which is beneficial to enhancing the washing effect.
[0024] The second static mixer 6 is provided with a third input port 61, a fourth input port 62, and a second output port 63. The third input port 61 and the second output port 63 are located at the left and right ends of the second static mixer 6, respectively. The fourth input port 62 is located at the top of the second static mixer 6 and is close to the third input port 61. The third input port 61 is connected to the output port of the second quench settling tank 2, the second output port 63 is connected to the input port of the third quench settling tank 3, and the fourth input port 62 is used for inputting alkali solution.
[0025] The third static mixer 7 is provided with a fifth input port 71, a sixth input port 72, and a third output port 73. The fifth input port 71 and the third output port 73 are located at the left and right ends of the third static mixer 7, respectively. The sixth input port 72 is located at the top of the third static mixer 7 and is close to the fifth input port 71. The fifth input port 71 is connected to the output port of the third quench settling tank 3, the third output port 73 is connected to the input port of the fourth quench settling tank 4, and the sixth input port 72 is used for hot water input.
[0026] In some embodiments, both the first static mixer 5 and the second static mixer 6 are provided with multiple first mixing units 54 connected in series. The first mixing units 54 are SK-type mixing units. The SK-type mixing unit allows the material to be washed and the alkaline solution to undergo shearing, diffusion, and convection during the flow process, thereby achieving rapid and uniform mixing.
[0027] As a further optimization, the third static mixer 7 is internally equipped with multiple second mixing units 74 and multiple third mixing units 75, connected in series. In one embodiment, the second mixing units 74 are SK-type mixing units, and the third mixing units 75 are SX-type mixing units. Through the dual mixing action of the SK-type and SX-type mixing units, the material to be washed and the hot water first undergo a rapid and uniform mixing process, followed by a slow and thorough contact process. This improves both the uniformity and thoroughness of the mixing between the material to be washed and the hot water.
[0028] In some embodiments, the second input port 52 may have a guide bend inside, with the outlet of the guide bend facing the first input port 51. This allows the alkaline solution input from the second input port 52 to immediately come into reverse contact with the material to be washed input from the first input port 51. Since the flow rate of the alkaline solution is less than the flow rate of the material to be washed, after contact with the material, the alkaline solution and the material to be washed can enter the first mixing unit 54 together under the influence of the material for further thorough mixing. The guide bend further improves the mixing degree between the material to be washed and the alkaline solution. The fourth input port 62 and the sixth input port 72 may also be similarly equipped with guide bends.
[0029] Example 3 As a further optimization of Example 2, in Figures 1 to 4 Based on, refer to Figures 5 to 6 The water washing system also includes an immersion tank 8 and a fourth static mixer 9. The fourth static mixer 9 is equipped with a seventh input port 91, an eighth input port 92, and a fourth output port 93. The seventh input port 91 is used for inputting the reaction products from the upstream reactor, the eighth input port 92 is used for inputting hot water and demulsifier, and the fourth output port 93 is connected to the input port of the immersion tank 8. The output port of the immersion tank 8 is connected to the input port of the first rapid cooling settling tank 1. The immersion tank 8 can be used to terminate the reaction of the reaction products in order to proceed with the subsequent water washing process. By setting the fourth static mixer 9 upstream of the immersion tank 8 for thorough mixing of the reaction products, hot water, and demulsifier, it is beneficial to quickly terminate the reaction of the reaction products.
[0030] As a further optimization, the fourth static mixer 9 is internally equipped with multiple fourth mixing units 94 and multiple fifth mixing units 95, connected in series. In one embodiment, the fourth mixing units 94 are SK-type mixing units, and the fifth mixing units 95 are SX-type mixing units. Similarly, through the dual mixing action of the SK-type and SX-type mixing units, both the uniformity of mixing the reaction products with hot water and the demulsifier and the thoroughness of mixing can be improved, which is beneficial for further accelerating the termination of the reaction.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.
Claims
1. A water washing system, characterized in that, It includes a first rapid cooling settling tank (1), a second rapid cooling settling tank (2), a third rapid cooling settling tank (3), and a fourth rapid cooling settling tank (4) connected in sequence. A first static mixer (5) is provided between the output port of the first quench settling tank (1) and the input port of the second quench settling tank (2). A second static mixer (6) is provided between the output port of the second quench settling tank (2) and the input port of the third quench settling tank (3). A third static mixer (7) is provided between the output port of the third quench settling tank (3) and the input port of the fourth quench settling tank (4). The first static mixer (5), the second static mixer (6) and the third static mixer (7) are all used for mixing the material to be washed with the washing medium.
2. The water washing system according to claim 1, characterized in that, The first static mixer (5) is provided with a first input port (51), a second input port (52) and a first output port (53). The first input port (51) is connected to the output port of the first quench settling tank (1), the first output port (53) is connected to the input port of the second quench settling tank (2), and the second input port (52) is used for inputting alkali solution.
3. The water washing system according to claim 2, characterized in that, The second static mixer (6) is provided with a third input port (61), a fourth input port (62), and a second output port (63). The third input port (61) is connected to the output port of the second quench settling tank (2), and the second output port (63) is connected to the input port of the third quench settling tank (3). The fourth input port (62) is used for inputting alkali solution.
4. The water washing system according to claim 3, characterized in that, The third static mixer (7) is provided with a fifth input port (71), a sixth input port (72) and a third output port (73). The fifth input port (71) is connected to the output port of the third rapid cooling settling tank (3), the third output port (73) is connected to the input port of the fourth rapid cooling settling tank (4), and the sixth input port (72) is used for hot water input.
5. The water washing system according to claim 1, characterized in that, Both the first static mixer (5) and the second static mixer (6) are provided with a plurality of first mixing units (54), which are connected in series. The first mixing unit (54) is an SK type mixing unit.
6. The water washing system according to claim 5, characterized in that, The third static mixer (7) is provided with a plurality of second mixing units (74) and a plurality of third mixing units (75) in sequence. The plurality of second mixing units (74) are connected in series and the plurality of third mixing units (75) are connected in series.
7. The water washing system according to claim 6, characterized in that, The second mixing unit (74) is an SK type mixing unit, and the third mixing unit (75) is an SX type mixing unit.
8. The water washing system according to claim 1, characterized in that, It also includes an immersion tank (8) and a fourth static mixer (9). The fourth static mixer (9) is provided with a seventh input port (91), an eighth input port (92) and a fourth output port (93). The seventh input port (91) is used for inputting the reaction products from the upstream reactor. The eighth input port (92) is used for inputting hot water and demulsifier. The fourth output port (93) is connected to the input port of the immersion tank (8). The output port of the immersion tank (8) is connected to the input port of the first quench settling tank (1).
9. The water washing system according to claim 8, characterized in that, The fourth static mixer (9) is provided with a plurality of fourth mixing units (94) and a plurality of fifth mixing units (95) in sequence. The plurality of fourth mixing units (94) are connected in series and the plurality of fifth mixing units (95) are connected in series.
10. The water washing system according to claim 9, characterized in that, The fourth mixing unit (94) is an SK-type mixing unit, and the fifth mixing unit (95) is an SX-type mixing unit.