CN216798770U - Bisphenol A crystallizer capable of analyzing component concentration of solution system on line - Google Patents
Bisphenol A crystallizer capable of analyzing component concentration of solution system on line Download PDFInfo
- Publication number
- CN216798770U CN216798770U CN202220155392.9U CN202220155392U CN216798770U CN 216798770 U CN216798770 U CN 216798770U CN 202220155392 U CN202220155392 U CN 202220155392U CN 216798770 U CN216798770 U CN 216798770U
- Authority
- CN
- China
- Prior art keywords
- crystallizer
- pipeline
- line
- bisphenol
- solution system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a bisphenol A crystallizer capable of analyzing the component concentration of a solution system on line, which comprises a crystallizer, wherein the bottom of the crystallizer is connected with a main pipeline, and the bisphenol A crystallizer also comprises a side pipeline with heat tracing, two ends of the side pipeline are connected to the main pipeline, and a valve and a sampler are connected to the side pipeline.
Description
Technical Field
The utility model relates to the technical field of bisphenol A preparation, in particular to a bisphenol A crystallizer capable of analyzing the component concentration of a solution system on line.
Background
Bisphenol A is one of the most widely used industrial compounds in the world and is a key raw material for producing polycarbonate and epoxy resin. The purification of bisphenol A-phenol adduct by crystallization is an important purification method in the production process of bisphenol A, and the purification process needs a crystallizer for crystallization purification.
However, the existing crystallizer generally has the problems of unstable operation and large concentration fluctuation of a solution system. Unstable crystallizer operation leads to the following two problems: 1) the product yield is low due to uneven distribution of crystal particle size; 2) the impurity content of the product is high due to the crystal wrapping impurities, and the quality fluctuation of the bisphenol A product is large. Therefore, the crystallization system in the crystallizer needs to be monitored in real time and controlled to solve the problem of unstable operation of the crystallizer.
Currently available crystallizers have no means of on-line analysis. In the document [ online analysis of an aspirin crystallization process ] Lianju, Li Xixi, Xusan, online analysis of an aspirin crystallization process [ J ]. chemical science, 2018,69(03):1046-1052, online measurement of an aspirin ethanol solution crystallization process by using analyzers such as an ultrasonic particle size analyzer, an attenuated total reflection Fourier infrared spectrometer, a turbidity meter, a two-dimensional imaging system and the like is reported, and all probes are placed in a fluid above a stirring paddle in a crystallizer. The method for inserting the probe into the crystallizer can influence the work of a stirring paddle in the crystallizer, and the probe is easily blocked due to crystal scaling in the crystallization process of the solution in the crystallizer, so that the detection result is inaccurate, and the long-period continuous real-time monitoring cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bisphenol A crystallizer capable of analyzing the component concentration of a solution system on line, which can continuously analyze the component concentration change of the solution system on line and solve the problem that the solution composition cannot be continuously and periodically analyzed on line because an on-line analysis probe is blocked due to crystal scaling in the solution system in the current bisphenol A crystallizer.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a bisphenol A crystallizer that can online analysis solution system component concentration, includes the crystallizer, the crystallizer bottom is connected with the trunk line, still includes the side line pipeline of taking the companion's heat, side line pipeline both ends are all connected on the trunk line, be connected with valve and sampler on the side line pipeline.
Preferably, the device also comprises a detection pipeline, and an online near-infrared probe is arranged in the detection pipeline.
Preferably, the sampler comprises a sampling pipeline, and the sampling pipeline is connected with an external pipeline through a flange.
Preferably, the detection pipeline is connected with a flange, and the online near-infrared probe extends into the detection pipeline through the flange.
Preferably, the number of the valves is two, and the sampler and the detection pipeline are connected to a lateral pipeline between the valves.
Has the advantages that: the utility model provides a bisphenol A crystallizer capable of analyzing the component concentration of a solution system on line, which has the following characteristics compared with the prior art:
1. the sampler of the utility model is arranged on the heat tracing side line, the sample obtained here is the effluent of the crystallizer after melting, and the concentration of the components of the solution system in the crystallizer can be accurately obtained by carrying out assay analysis on the effluent.
2. The online probe is added in the pipeline, so that the influence on the crystallization process caused by adding the built-in probe in the crystallizer is avoided.
3. The utility model adopts the heat tracing pipeline, so that crystals are melted when the crystallization solution enters the side pipeline, the melted outflow of the crystallizer can be obtained, and the near-infrared probe can be prevented from being blocked.
4. The utility model adopts an on-line near infrared probe, and can realize continuous real-time monitoring in a long period.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following examples.
As shown in fig. 1, the specific embodiment of a bisphenol a crystallizer capable of analyzing the concentration of components of a solution system on line is shown, and the bisphenol a crystallizer capable of analyzing the concentration of components of a solution system on line in this embodiment includes a crystallizer 5, a main pipe is connected to the bottom of the crystallizer 5, and the bisphenol a crystallizer further includes a side line pipeline 1 with heat tracing, two ends of the side line pipeline 1 are both connected to the main pipe, and the side line pipeline 1 is connected to a valve 4 and a sampler 2.
In a preferred embodiment mode, the device further comprises a detection pipeline 3, and an online near-infrared probe is arranged in the detection pipeline 3.
In a preferred embodiment, the sampler 2 comprises a sampling pipe, and the sampling pipe is connected with an external pipe through a flange.
In a preferred embodiment, the detection pipeline 3 is connected with a flange, and the online near-infrared probe extends into the detection pipeline 3 through the flange.
In a preferred embodiment, two valves 4 are provided, and the sampler 2 and the detection pipeline 3 are connected to the side pipeline 1 between the valves 4.
In the utility model, a sampler 2 is arranged on a side pipeline 1 with heat tracing, the effluent of a crystallizer 5 after melting can be taken from the side pipeline 1, the component concentration of a solution system can be accurately obtained through testing, and an online near-infrared probe 3 can monitor the component concentration of the solution system in real time; the side pipeline 1 with the heat tracing can enable the temperature of the side pipeline 1 to reach 90-120 ℃, the heat tracing can adopt conventional heating devices such as heating resistance wires and the like to melt crystals entering the side line, the crystals are prevented from blocking an online near infrared probe, and the long-period continuous operation of the concentration of the components of an online analysis solution system is ensured.
The process flow is as follows:
the solution flows out of the crystallizer 5 and then enters a pipeline, a part of the solution for testing flows into a side pipeline 1 with heat tracing, after the solution and the crystals in the side pipeline 1 are completely melted, a sampler 2 on the side pipeline 1 can take out the melted solution flowing out of the crystallizer, and the concentration of the system components of the sampler can be analyzed and tested for on-line near infrared spectrum modeling; the on-line near infrared probe can monitor the component concentration of the dissolved solution system in real time, and realizes long-period, continuous and stable on-line analysis.
Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.
Claims (5)
1. A bisphenol A crystallizer capable of analyzing the component concentration of a solution system on line is characterized in that: including crystallizer (5), crystallizer (5) bottom is connected with the trunk line, still includes side line pipeline (1) of taking the companion's heat, side line pipeline (1) both ends are all connected on the trunk line, be connected with valve (4) and sampler (2) on side line pipeline (1).
2. The bisphenol-a crystallizer of claim 1, wherein the concentration of the components of the solution system can be analyzed on-line, and the concentration of the components of the solution system is characterized in that: the device is characterized by further comprising a detection pipeline (3), wherein an online near-infrared probe is arranged in the detection pipeline (3).
3. The bisphenol-a crystallizer of claim 2, wherein the concentration of the components of the solution system can be analyzed on-line, and the concentration of the components of the solution system is characterized in that: the sampler (2) comprises a sampling pipeline, and the sampling pipeline is connected with an external pipeline through a flange.
4. A bisphenol a crystallizer capable of on-line analysis of the concentration of solution system components as claimed in claim 2 or 3, wherein: the detection pipeline (3) is connected with a flange, and the online near-infrared probe extends into the detection pipeline (3) through the flange.
5. The bisphenol-a crystallizer of claim 3, wherein the concentration of the components of the solution system can be analyzed on-line, and the concentration of the components of the solution system is characterized in that: the two valves (4) are arranged, and the sampler (2) and the detection pipeline (3) are connected to the lateral line pipeline (1) between the valves (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220155392.9U CN216798770U (en) | 2022-01-20 | 2022-01-20 | Bisphenol A crystallizer capable of analyzing component concentration of solution system on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220155392.9U CN216798770U (en) | 2022-01-20 | 2022-01-20 | Bisphenol A crystallizer capable of analyzing component concentration of solution system on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216798770U true CN216798770U (en) | 2022-06-24 |
Family
ID=82065518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220155392.9U Active CN216798770U (en) | 2022-01-20 | 2022-01-20 | Bisphenol A crystallizer capable of analyzing component concentration of solution system on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216798770U (en) |
-
2022
- 2022-01-20 CN CN202220155392.9U patent/CN216798770U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8477295B2 (en) | Automated soil measurement device | |
| CN104713895B (en) | Method for distinguishing between pure and syrup-adulterated honey based on combination of hydrogen nuclear magnetic resonance and partial least square method | |
| CN101738486B (en) | Fully-automatic analyzer and analysis method of urea in milk and milk products | |
| WO2010129877A1 (en) | Automated soil measurement device | |
| CN105388309B (en) | The automatic quick determination method of trace iron ions and system and application in Power Plant Water Vapor | |
| CN101968436B (en) | Quantitative analysis method for measuring trace nickel in water by microwave digestion-flame atomic absorption spectrometry (FAAS) | |
| CN109900852A (en) | Boron element based on chemical titration analysis technology automatically analyzes test device and method | |
| CN100557422C (en) | A kind of flow injection colorimetric of measuring cyanide content is surveyed the cyanogen method | |
| CN110082423A (en) | A kind of aerated zone soil gas quick sampling analytical equipment | |
| CN205472721U (en) | Intelligent monitoring based sewage treatment system | |
| CN105319205B (en) | The automatic rapid detection method of chloride ion and system and application in a kind of Power Plant Water Vapor | |
| CN216798770U (en) | Bisphenol A crystallizer capable of analyzing component concentration of solution system on line | |
| CN217084577U (en) | Bisphenol A crystallizer capable of analyzing crystal grain size distribution on line | |
| CN103267778B (en) | System for concurrently measuring uranium concentration and nitric acid concentration | |
| US4887453A (en) | Method and system for on-line calibration and validation of process instrumentation | |
| CN217359845U (en) | Intelligent online monitoring device for nuclear power plant water chemistry | |
| CN110658139A (en) | Permanganate index analysis system | |
| CN208383835U (en) | A kind of garden stuff pesticide residue detection device | |
| CN209542562U (en) | A kind of portable inspectiont pipe fast detector | |
| KR100952130B1 (en) | Radioactive crud sampling system by using capillary sampler | |
| CN109541111A (en) | A kind of fast and effective method for measuring total sugar content in D-sorbitol solution | |
| CN219540302U (en) | Device for in-situ monitoring of reaction progress | |
| CN220455302U (en) | Combined COD water quality on-line analyzer | |
| Shen | Determination of silver in copper concentrate by atomic absorption spectrometry | |
| CN212207416U (en) | Detection system for electronic-grade tetramethyl ammonium hydroxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |