Resin reaction liquid comprehensive washing device
By connecting multi-stage centrifugal extractors in series and using a detergent recovery system, the problems of low cleaning efficiency and resource waste in resin reaction liquid were solved, achieving efficient cleaning and environmentally friendly emissions, reducing production costs, and improving the level of automation control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN PETROCHEMICAL DESIGN INST
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional resin reaction solution cleaning processes are inefficient, costly, and difficult to completely remove impurities, and pose environmental pollution risks. Existing equipment has poor compatibility, results in serious resource waste, and lacks automated control.
By employing a multi-stage centrifugal extractor in series and a dual-pipeline supply and recovery system, multi-stage continuous cleaning of the resin reaction liquid is achieved. Combined with the recycling and resource recovery of detergent, the design of the centrifugal extractor and detergent recovery reaction tank enables efficient cleaning and environmentally friendly emissions.
It improves cleaning efficiency, reduces detergent consumption, reduces environmental pollution, enables resource recycling, and ensures the stability and environmental friendliness of the process.
Smart Images
Figure CN224404439U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of resin washing equipment, and in particular relates to a comprehensive water washing device for resin reaction liquid. Background Technology
[0002] In the resin production industry, resin reaction solutions often contain various impurities, such as unreacted monomers, catalyst residues, and byproducts. These impurities can seriously affect the performance and quality of the resin. Therefore, effectively washing the resin reaction solution to remove impurities is a crucial step in the resin production process.
[0003] Traditional resin reaction solution cleaning processes often employ single-stage stirring or batch operations, resulting in low cleaning efficiency, unstable quality, and difficulty in thoroughly removing residual impurities (such as aluminum chloride and organic catalysts) from the resin surface. Furthermore, high detergent consumption leads to high production costs, and direct discharge of aluminum-containing wastewater causes environmental pollution. Existing technologies lack multi-stage continuous separation devices tailored to the characteristics of resins, making it impossible to achieve closed-loop detergent recycling and byproduct resource utilization, leading to significant resource waste. In addition, poor adaptability of general-purpose equipment easily causes damage to resin microspheres, and insufficient automation control makes it difficult to ensure process stability. Therefore, this invention proposes a comprehensive water washing device for resin reaction solutions. Utility Model Content
[0004] The purpose of this invention is to provide a comprehensive water washing device for resin reaction liquid, which achieves efficient cleaning, resource recycling and environmentally friendly emissions through multi-stage centrifugal extraction in series and dual-pipeline supply and recovery.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a comprehensive water washing device for resin reaction liquid, comprising several centrifugal extractors, a detergent supply main pipe, a detergent recovery main pipe, several detergent recovery reaction tanks, a resin reaction liquid input pipe, and a resin cleaning output pipe. The centrifugal extractors have a first inlet and a second inlet on both sides of their bottom, and a heavy phase outlet and a light phase outlet on both sides of their top. All centrifugal extractors are connected to the detergent supply main pipe and the detergent recovery main pipe. The centrifugal extractors are arranged in a continuous sequence and connected to both the detergent supply main pipe and the detergent recovery main pipe, enabling multi-stage continuous cleaning of the resin reaction liquid. The several detergent recovery reaction tanks are connected to the detergent recovery main pipe.
[0007] As a preferred technical solution of this utility model, the heavy phase outlet of the previous centrifugal extractor and the first inlet of the next centrifugal extractor are connected through a first connecting pipe between two adjacent centrifugal extractors undergoing continuous water washing; the resin reaction liquid input pipe is connected to the first inlet of the first centrifugal extractor; the resin reaction liquid cleaning output pipe is connected to the heavy phase outlet of the last centrifugal extractor; the light phase outlet of the centrifugal extractor is connected through a detergent recovery branch pipe; and the second inlet of the centrifugal extractor is connected to the detergent supply main pipe through a detergent supply branch pipe.
[0008] As a preferred embodiment of this utility model, a first flow meter and a first flow regulating valve are installed on the resin reaction liquid input pipe.
[0009] As a preferred embodiment of this invention, a second flow meter is installed on the detergent supply main pipe.
[0010] As a preferred embodiment of this utility model, a second flow regulating valve is installed on the detergent supply branch pipe.
[0011] As a preferred embodiment of this utility model, the detergent recovery reaction tank is connected to the detergent recovery main pipe via a recovery branch pipe.
[0012] As a preferred embodiment of this utility model, the detergent recovery reaction tank includes a tank body; an agitator and a temperature sensor are installed on the tank body; a float switch connected to the recovery branch pipe is provided on the tank body; a feeding port is provided at the upper end of the tank body; and a liquid outlet and a sewage outlet are provided at the lower end of the tank body.
[0013] As a preferred embodiment of this utility model, the outer wall of the tank is provided with a jacket; the jacket is provided with a steam inlet and a steam outlet.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model involves several centrifugal extractors connected in series via a first connecting pipe. The inlet of the first extractor is connected to the resin reaction liquid input pipe, and the outlet of the last extractor is connected to the cleaning output pipe, forming a continuous flow path. The resin liquid passes through the multi-stage extractors sequentially, with each stage separating impurities of different particle sizes through centrifugal action, thus improving cleaning efficiency compared to a single-stage process. Adjacent extractors are directly connected to their inlets via the heavy phase outlet, avoiding material stagnation caused by intermediate storage tanks and reducing the risk of secondary contamination. A first flow meter and regulating valve are installed on the resin reaction liquid input pipe to match the processing volume of each stage in real time, ensuring controllable cleaning time.
[0016] 2. In this invention, the detergent supply main pipe injects detergent into the second inlet of each stage of the extractor through branch pipes. The light phase outlet merges into the recovery main pipe via a recovery branch pipe, ultimately entering the recovery reaction tank. A second flow meter and branch pipe regulating valve are installed on the supply main pipe to dynamically adjust the detergent ratio according to the resin flow rate, preventing excessive use that could lead to emulsification. The light phase outlet is directly connected to the recovery pipeline to prevent Al³⁺ leakage into the environment, meeting environmental standards.
[0017] 3. The Al³⁺-containing detergent recovered by this utility model is heated to 90-110℃ after the liquid level is controlled by the float ball, and the pH is adjusted to 7 by adding alkaline solution, which promotes the hydrolysis of Al³⁺ to generate Al(OH)3 precipitate. The clear water phase can be reused as detergent.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the integrated water washing device for resin reaction liquid of this utility model.
[0021] Figure 2 This is a schematic diagram of the detergent recovery reaction tank.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1-Centrifugal extractor, 11-First inlet, 12-Second inlet, 13-Heavy phase outlet, 14-Light phase outlet, 2-Detergent supply main pipe, 3-Detergent recovery main pipe, 4-Detergent recovery reaction tank, 5-Resin reaction liquid input pipe, 6-Resin cleaning output pipe, 7-First connecting pipe, 21-Detergent supply branch pipe, 31-Detergent recovery branch pipe, 32-Recovery branch pipe, 41-Tank body, 42-Agitator, 43-Temperature sensor, 44-Float switch, 45-Feeding port, 46-Outlet, 47-Drainage port, 48-Jacket, 49-Steam inlet, 410-Steam outlet, 51-First flow meter, 52-First flow regulating valve, 22-Second flow meter, 23-Second flow regulating valve. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Specific Implementation Example 1:
[0026] Please see Figure 1-2 As shown, this utility model is a comprehensive water washing device for resin reaction liquid, including several centrifugal extractors 1, a detergent supply main pipe 2, a detergent recovery main pipe 3, several detergent recovery reaction tanks 4, a resin reaction liquid input pipe 5, and a resin cleaning output pipe 6. The centrifugal extractors 1 have a first inlet 11 and a second inlet 12 on both sides of their bottom, and a heavy phase outlet 13 and a light phase outlet 14 on both sides of their top. All centrifugal extractors 1 are connected to the detergent supply main pipe 2 and the detergent recovery main pipe 3, and are arranged in a continuous manner, connected to both pipes for multi-stage continuous cleaning of the resin reaction liquid. The several detergent recovery reaction tanks 4 are connected to the detergent recovery main pipe 3. In this embodiment, the detergent in the detergent supply main pipe 2 is deionized water. The centrifugal extractors 1 are CWL-M series centrifugal extractors, which have advantages such as high mixing and separation efficiency and large processing capacity.
[0027] The heavy phase outlet 13 of the previous centrifugal extractor 1 is connected to the first inlet 11 of the next centrifugal extractor 1 via a first connecting pipe 7. The resin reaction liquid input pipe 5 is connected to the first inlet 11 of the first centrifugal extractor 1. The resin reaction liquid cleaning output pipe 6 is connected to the heavy phase outlet 13 of the last centrifugal extractor 1. The light phase outlet 14 of the centrifugal extractor 1 is connected via a detergent recovery branch pipe 31. The second inlet 12 of the centrifugal extractor 1 is connected to the detergent supply main pipe 2 via a detergent supply branch pipe 21.
[0028] like Figure 1 The resin reaction solution shown is sequentially passed through a multi-stage centrifugal extractor 1. Each stage uses centrifugation to rapidly separate the heavy phase (resin solution) from the light phase (detergent containing AlCl3). The first-stage extractor removes most of the free Al³⁺, the second stage further reduces the concentration of residual ions, and the final stage ensures that the pH value remains stable within the target range. After final washing, the residual AlCl3 content in the resin solution can be controlled below 0.1%. Adjacent extractors are automatically connected in series via the first connecting pipe 7, eliminating the need for intermediate storage of the resin solution, reducing material exposure time, and avoiding secondary contamination.
[0029] To precisely control the multi-stage cleaning of the resin reaction solution, a first flow meter 51 and a first flow regulating valve 52 are installed on the resin reaction solution inlet pipe 5. A second flow meter 22 is installed on the detergent supply main pipe 2. A second flow regulating valve 23 is installed on the detergent supply branch pipe 21. The first flow meter 51 and the regulating valve 52 are linked to monitor the resin solution inlet flow rate in real time to ensure that the processing capacity of each stage of the extractor is matched; the second flow meter 22 and the branch pipe regulating valve 23 work together to control the detergent supply and avoid excessive detergent causing emulsification.
[0030] The detergent recovery reaction tank 4 is connected to the detergent recovery main pipe 3 via a recovery branch pipe 32. The detergent recovery reaction tank 4 includes a tank body 41. An agitator 42 and a temperature sensor 43 are installed on the tank body 41. A float switch 44 connected to the recovery branch pipe 32 is installed on the tank body 41. A feed inlet 45 is located at the upper end of the tank body 41. A liquid outlet 46 and a drain outlet 47 are located at the lower end of the tank body 41. Washing water containing aluminum chloride from the detergent recovery main pipe 3 enters the tank body 41 through the float switch 44. The float switch 44 cuts off the water supply after the liquid level reaches a set level. A jacket 48 is installed on the outer wall of the tank body 41 for heating. A steam inlet 49 and a steam outlet 410 are provided on the jacket 48. Low-pressure steam is introduced to heat the solution to 90℃-110℃. Agitator 42 is operated, and while stirring, 30% alkali solution is slowly and quantitatively added through feed port 45 to adjust the pH of the reaction solution to 7. After the raw materials are added, the equipment is kept at this temperature for 4-6 hours. After the reaction is complete, the heating steam input is stopped, and the solution is cooled to approximately 45°C, a cooling process taking about 1 hour. Once the reaction solution has cooled to 50℃-60℃, the precipitate is discharged through outlet 47 to the next separation unit. The turbidity of the clear water phase is ≤5 NTU, and it can be directly reused or discharged.
[0031] The recovery tank precisely controls the liquid level via a float switch, combined with jacketed steam heating (90-110℃ for 4-6 hours) to promote the hydrolysis of AlCl3 to form Al(OH)3 precipitate. The purified water phase is cooled and discharged in compliance with standards, reducing the wastewater treatment load. Detergent (such as deionized water), after multiple stages of use, flows into the recovery reaction tank through the detergent recovery main pipe. After pH adjustment (e.g., adding 30% alkali solution to neutralize to pH=7) and ionization adjustment, it re-enters the supply main pipe for recycling, reducing detergent consumption by approximately 70%.
[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A comprehensive water washing device for resin reaction solution, comprising several centrifugal extractors (1), wherein the centrifugal extractors (1) are provided with a first liquid inlet (11) and a second liquid inlet (12) on both sides of the bottom, and the centrifugal extractors (1) are provided with a heavy phase outlet (13) and a light phase outlet (14) on both sides of the top, characterized in that: It also includes a detergent supply main pipe (2), a detergent recovery main pipe (3), several detergent recovery reaction tanks (4), a resin reaction liquid input pipe (5), and a resin cleaning output pipe (6). Several centrifugal extractors (1) are connected to the detergent supply main pipe (2) and the detergent recovery main pipe (3). Several centrifugal extractors (1) are arranged in a continuous manner and connected to the detergent supply main pipe (2) and the detergent recovery main pipe (3) respectively, to continuously clean the resin reaction solution in multiple stages; Several detergent recovery reaction tanks (4) are connected to the detergent recovery main pipe (3).
2. The resin reaction solution comprehensive water washing device according to claim 1, characterized in that, The heavy phase outlet (13) of the previous centrifugal extractor (1) and the first liquid inlet (11) of the next centrifugal extractor (1) are connected by a first connecting pipe (7) between two adjacent centrifugal extractors (1) undergoing continuous water washing; the resin reaction liquid input pipe (5) is connected to the first liquid inlet (11) of the first centrifugal extractor (1); the resin reaction liquid cleaning output pipe (6) is connected to the heavy phase outlet (13) of the last centrifugal extractor (1); the light phase outlet (14) of the centrifugal extractor (1) is connected by a detergent recovery branch pipe (31); the second liquid inlet (12) of the centrifugal extractor (1) is connected to the detergent supply main pipe (2) through a detergent supply branch pipe (21).
3. The resin reaction solution comprehensive water washing device according to claim 1 or 2, characterized in that, The resin reaction liquid input pipe (5) is equipped with a first flow meter (51) and a first flow regulating valve (52).
4. The resin reaction solution comprehensive water washing device according to claim 3, characterized in that, A second flow meter (22) is installed on the detergent supply main (2).
5. The resin reaction solution comprehensive water washing device according to claim 2, characterized in that, A second flow regulating valve (23) is installed on the detergent supply branch pipe (21).
6. The resin reaction solution comprehensive water washing device according to claim 1, characterized in that, The detergent recovery reaction tank (4) is connected to the detergent recovery main pipe (3) through a recovery branch pipe (32).
7. The resin reaction solution comprehensive water washing device according to claim 6, characterized in that, The detergent recovery reaction tank (4) includes a tank body (41); a stirrer (42) and a temperature sensor (43) are installed on the tank body (41); a float switch (44) connected to the recovery branch pipe (32) is provided on the tank body (41); a feeding port (45) is provided at the upper end of the tank body (41); and a liquid outlet (46) and a sewage outlet (47) are provided at the lower end of the tank body (41).
8. The resin reaction solution comprehensive water washing device according to claim 7, characterized in that, The outer wall of the tank (41) is provided with a jacket (48); the jacket (48) is provided with a steam inlet (49) and a steam outlet (410).