Azo extractor and extraction device
By designing a double-layer cavity structure azo extractor and a coaxially installed extraction device, the problem of detection results deviation caused by cumbersome sample suspension and sample transfer in the prior art is solved, and efficient and accurate azo dye extraction is achieved.
Patent Information
- Application Number
- CN202421031833.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The existing azo dye detection device is complicated to operate, making it difficult to ensure that the condensate drops on the sample, resulting in insufficient dye extraction; at the same time, the sample transfer process may lead to deviations in the detection results.
A kind of azo extractor is designed, adopting a double-layer cavity structure, the sample is placed directly in the internal sample cavity to avoid hook hanging operation. The device is installed coaxially by the reactor, extractor and condenser. The extracted solvent steam enters the condenser through the steam through holes, and the condensed liquid drips into the sample cavity to achieve efficient extraction.
The sample suspension and transfer process is simplified, the efficiency and accuracy of dye extraction is improved, and the operation steps and potential errors are reduced.
Smart Images
Figure CN222719274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of textile safety detection, in particular to an azo extractor and an extraction device. Background Art
[0002] The detection of azo dyes is a very important product testing item in the textile industry. GB / T17592-2024 specifies the detection methods and requirements for azo dyes. Appendix G of the standard specifies the extraction methods of azo dyes from fibers dyed with disperse dyes (pigments) such as polyester fibers, polyamide fibers, acetate fibers, triacetate fibers, polyacrylonitrile fibers and chlorinated fibers, and further clarifies the principles and requirements of the extraction device used. The composition of the extraction device is as follows: Figure 1 As shown, the extraction device consists of a round-bottom flask, a condenser and a hook for hanging samples. When working, the sample is wrapped with white gauze and fixed at the lower end of the hook, and the upper end of the hook is hung in the condenser. An appropriate amount of extraction solvent (xylene solution) is added to the round-bottom flask, and the condenser with the hook and sample hanging is plugged into the round-bottom flask. Start the heating source to keep the extraction solvent in the round-bottom flask boiling, and the solvent vapor is condensed and liquefied in the condenser. The dripping liquid extraction solvent flows through the sample wrapped with white gauze to extract the dye in the sample. This process takes about 40 minutes. Finally, the dye in the sample will be collected in the round-bottom flask. After the sample solution in the round-bottom flask is cooled, it is concentrated to remove the extraction solvent, and the sample in the round-bottom flask is transferred to the reactor for subsequent cracking operations.
[0003] In actual work, the above-mentioned device has the following shortcomings: 1. The operation of hanging samples is cumbersome: the operation of hanging samples by hooks is cumbersome and difficult to fix, and it is impossible to ensure that the condensate drips onto the sample, and the dye in the sample cannot be effectively extracted; 2. Transferring samples will reduce the accuracy of the test results: during work, after the sample solution in the round-bottom flask is cooled, it needs to be concentrated to remove the extraction solvent. The remaining substance needs to be dissolved with methanol and transferred to the reactor. The transfer process may cause incomplete transfer, resulting in large deviations in the analysis results. Utility Model Content
[0004] The purpose of the utility model is to provide an azo extractor and an extraction device in view of the deficiencies of the prior art.
[0005] A technical solution of the utility model is: an azo extractor, the extractor is provided with two inner and outer cavities, wherein:
[0006] The inner cavity is a sample cavity for placing samples to be processed, and the sample cavity is provided with a first opening facing upward; the upper part of the sample cavity is provided with a steam through hole connecting the inner and outer cavities, and the bottom is provided with a liquid discharge hole; the outer cavity is provided with a second opening facing downward.
[0007] On the basis of the above scheme, further, in order to reduce the heating power during operation, a heat preservation layer is provided on the outermost layer of the extractor, and a vacuum treatment is performed between the heat preservation layer and the external cavity.
[0008] Another technical solution of the utility model is: an azo extraction device, using the azo extractor as described above, and further comprising: a reactor and a condenser.
[0009] The reactor, extractor and condenser are coaxially installed from bottom to top, wherein: an extraction solvent is added into the reactor, the upper opening of the reactor is sealed and connected with the second opening of the extractor; the lower opening of the condenser is sealed and connected with the first opening of the extractor.
[0010] On the basis of the above solution, preferably, the lower opening of the condenser is a spherical head structure, and the first opening of the extractor is a hemispherical interface matching the spherical head structure.
[0011] On the basis of the above solution, preferably, the upper opening of the reactor is a conical interface, and the second opening of the extractor is a conical head structure matching the conical interface.
[0012] Based on the above solution, preferably, when the reactor is sealed and connected to the extractor, the reactor is sleeved on the outside of the second opening; and threads are provided on the outer wall of the upper opening of the reactor.
[0013] In the above scheme, specifically, the condensing tube in the condensing cavity of the condenser is a spiral or spherical structure; the upper part of the condensing cavity is provided with an exhaust port and a cooling liquid interface connected to the condensing tube.
[0014] In the above scheme, specifically, the reactor, extractor and condenser are all made of glass.
[0015] The working process of the azo extraction device is:
[0016] When preparing for detection, the sample to be processed is inserted into the sample cavity, and the sample to be processed is located below the steam through hole; an appropriate amount of extraction solvent is added to the reactor, and the reactor is placed in a heating device, and the extractor is sealed and connected to the condenser through the first opening, and sealed and connected to the reactor through the second opening; the reactor, extractor, and condenser are sealed at their interfaces.
[0017] The flowing coolant is introduced into the condenser tube of the condenser.
[0018] Start the heater. Under the action of heating, the extraction solvent in the reactor is converted into steam and enters the condenser upward through the steam through hole in the sample chamber of the extractor, and is condensed into liquid. Most of the liquid drips downward from the center of the condenser, and the dripping liquid flows through the sample in the sample chamber to extract the azo dye in the sample. The extract returns to the reactor from the liquid discharge hole at the bottom of the sample chamber, and the cycle continues. The heating process needs to last about 40 minutes. The condensed xylene liquid continuously flushes the sample from top to bottom to achieve efficient sample extraction.
[0019] After the heating time is reached, the reactor is separated from the heater and the extract therein is cooled.
[0020] After the liquid in the reactor is cooled, the reactor, the extractor and the condenser are separated; the reactor containing the extract is placed in a suitable concentration device, concentrated to near dryness, and then subjected to subsequent reduction cracking treatment. Since the reactor is provided with threads, during the subsequent reduction cracking treatment, the reduction cracking reagent can be directly introduced into the reactor, and sealed with a sealing cover that matches the reactor thread. Since the same reactor is used in the sample extraction process and the reduction cracking process, the sample transfer step is omitted, which not only simplifies the operation steps, but also avoids the loss during the sample transfer process, thereby improving the accuracy of the analysis and test results.
[0021] Beneficial effect: The extractor provided in the utility model adopts a double-layer design, and the sample to be processed is directly placed in the internal sample cavity, avoiding the cumbersome operation of the original hook hanging. Furthermore, the reactor, the extractor and the condenser are coaxially installed from bottom to top to form an azo extraction device. When heated, the extraction solvent vapor enters the condenser upward through the steam through hole in the sample cavity in the extractor, and is condensed into liquid. Most of the liquid drips downward from the center of the condenser, and the dripping liquid flows through the sample in the sample cavity to extract the azo dye in the sample. The extract returns to the reactor from the liquid discharge hole at the bottom of the sample cavity, and the condensed xylene liquid continuously flushes the sample from top to bottom, realizing efficient extraction of the sample.
[0022] The outer wall of the upper opening of the reactor in the utility model is provided with threads. After the extraction working steps are completed, the extractor is directly pulled out from the reactor, the reactor filled with the extract is placed in a suitable concentration device, and after being concentrated to nearly dryness, a reduction cracking reagent is directly added to the reactor, and a sealing cover matched with the thread of the reactor is used for sealing, and subsequent reduction cracking treatment is carried out. Since the same reactor is used in the sample extraction process and the reduction cracking process, the sample transfer step is omitted, not only the operation steps are simplified, but also the loss in the sample transfer process is avoided, and the accuracy of the analysis and test results is improved.
[0023] The utility model uses the same reactor in the sample extraction process and the reduction cracking process, omitting the sample transfer step, which not only simplifies the operation steps, but also avoids the loss in the sample transfer process, and improves the accuracy of the analysis and test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic structural diagram of the existing extraction device described in the background technology.
[0025] Figure 2 It is a structural schematic diagram of the extractor in the utility model.
[0026] Figure 3 It is a schematic diagram of the structure of the extractor provided with a heat-insulating layer in the utility model.
[0027] Figure 4 It is a schematic diagram of the structure of the azo extraction device in the utility model.
[0028] Figure 5 It is a structural schematic diagram of the reactor in the utility model.
[0029] Figure 6 It is a structural schematic diagram of the condenser in the utility model.
[0030] In the figure: 1-reactor, 1.1-conical interface, 1.2-thread, 2-extractor, 2.1-second opening, 2.2-sample chamber, 2.2.1-steam hole, 2.2.2-liquid discharge hole, 2.3-first opening, 2.4-insulation layer, 3-condenser, 3.1-condensation cavity, 3.2-condensation tube, 3.3-spherical head structure, 3.4-exhaust port. DETAILED DESCRIPTION
[0031] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] Example 1: See attached Figure 2 , an azo extractor, the extractor 2 is provided with two inner and outer cavities, wherein:
[0033] The inner cavity is a sample cavity 2.2 for placing the sample to be processed, and the sample cavity 2.2 is provided with a first upward opening 2.3; the upper part of the sample cavity 2.2 is provided with a steam through hole 2.21 connecting the inner and outer cavities, and the bottom is provided with a liquid discharge hole 2.22; the outer cavity is provided with a second downward opening 2.1.
[0034] When preparing for testing, the sample to be processed is inserted into the sample cavity 2.2, avoiding the cumbersome operation of the original hook hanging. The sample to be processed is located below the steam through hole 2.21; the extractor 2 is sealedly connected to the condenser 3 through the first opening 2.3, and is sealedly connected to the reactor 1 through the second opening 2.1. An appropriate amount of extraction solvent is added to the reactor 1, thereby forming an azo extraction device.
[0035] See attached Figure 3 In order to reduce the heating power of the heater during detection, the extractor 2 is also provided with a heat preservation layer 2.4, and a vacuum treatment is performed between the heat preservation layer 2.4 and the external cavity.
[0036] Example 2: See attached Figure 4 , an azo extraction device, using the azo extractor as described in Example 1, as well as a reactor 1 and a condenser 3. In this example, the reactor 1, the extractor 2 and the condenser 3 are all made of glass.
[0037] The reactor 1, the extractor 2 and the condenser 3 are coaxially installed from bottom to top, wherein: the extraction solvent is added into the reactor 1, the upper opening of the reactor 1 is sealedly connected to the second opening 2.1 of the extractor 2; the lower opening of the condenser 3 is sealedly connected to the first opening 2.3 of the extractor 2.
[0038] See attached Figure 6 The lower opening of the condenser 3 is a spherical head structure 3.3, and the first opening 2.3 of the extractor 2 is a hemispherical interface matching the spherical head structure 3.3. The condenser tube 3.2 in the condensation cavity 3.1 of the condenser 3 is a spiral or spherical structure; the upper part of the condensation cavity 3.1 is provided with an exhaust port 3.4 and a coolant interface connected to the condenser tube 3.2.
[0039] See attached Figure 5 The upper opening of the reactor 1 is a conical interface 1.1, and the second opening 2.1 of the extractor 2 is a conical head structure matching the conical interface 1.1.
[0040] The working process is:
[0041] When preparing for detection, the sample to be processed is inserted into the sample cavity 2.2, and the sample to be processed is located below the steam through hole 2.21; an appropriate amount of extraction solvent is added to the reactor 1, and the reactor 1 is placed in the heater, and the extractor 2 is sealed and connected to the condenser 3 through the first opening 2.3, and is sealed and connected to the reactor 1 through the second opening 2.1; the reactor 1, the extractor 2, and the condenser 3 are sealed between each other's interfaces.
[0042] A flowing coolant is introduced into the condensation tube 3 . 2 of the condenser 3 .
[0043] The heater is started. Under the action of heating, the extraction solvent in the reactor 1 is converted into steam and enters the condenser 3 upward through the steam through hole 2.21 in the sample chamber 2.2 in the extractor 2, and is condensed into liquid. Most of the liquid drips downward from the center of the condenser 3, and the dripping liquid flows through the sample in the sample chamber 2.2 to extract the azo dye in the sample. The extract returns to the reactor 2 from the liquid discharge hole 2.22 at the bottom of the sample chamber 2.2, and the cycle continues. The heating process needs to last about 40 minutes. The condensed xylene liquid continuously flushes the sample from top to bottom to achieve efficient sample extraction.
[0044] After the heating time is reached, the reactor 1 is separated from the heater and the extract therein is cooled.
[0045] After the liquid in the reactor 1 is cooled, the reactor 1, the extractor 2 and the condenser 3 are separated; the reactor 1 containing the extract is placed in a suitable concentration device, concentrated to near dryness, and then subjected to subsequent reduction cracking treatment.
[0046] Preferably, when the reactor 1 is sealed and connected to the extractor 2, the reactor 1 is sleeved on the outside of the second opening 2.1; and a thread 1.2 is provided on the outer wall of the upper opening of the reactor 1. Since the reactor 1 is provided with the thread 1.2, during the subsequent reduction and cracking treatment, the reduction and cracking reagent can be directly added to the reactor 1, and the reactor 1 can be sealed with a sealing cover that matches the thread of the reactor 1. Since the same reactor 1 is used in the sample extraction process and the reduction and cracking process, the sample transfer step is omitted, which not only simplifies the operation steps, but also avoids the loss of the sample during the transfer process, thereby improving the accuracy of the analysis and test results.
[0047] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.
Claims
1. An azo extractor, characterized in that: The extractor (2) is provided with two inner and outer cavities, wherein: The internal cavity is a sample cavity (2.2) for placing a sample to be processed, and the sample cavity (2.2) is provided with a first opening (2.3) facing upward; the upper part of the sample cavity (2.2) is provided with a steam through hole (2.21) communicating with the inner and outer cavities, and the bottom is provided with a liquid discharge hole (2.22); The outer cavity is provided with a second opening (2.1) facing downwards.
2. An azo extractor as claimed in claim 1, characterized in that, The extractor (2) is also provided with a heat-insulating layer (2.4), and a vacuum treatment is performed between the heat-insulating layer (2.4) and the external cavity.
3. An azo extraction device, using the azo extractor as claimed in claim 1 or 2, characterized in that: The device further comprises: a reactor (1) and a condenser (3); The reactor (1), the extractor (2) and the condenser (3) are coaxially installed from bottom to top, wherein: an extraction solvent is added into the reactor (1), the upper opening of the reactor (1) is sealedly connected to the second opening (2.1) of the extractor (2); and the lower opening of the condenser (3) is sealedly connected to the first opening (2.3) of the extractor (2).
4. An azo extraction device as claimed in claim 3, characterized in that: The lower opening of the condenser (3) is a spherical head structure (3.3), and the first opening (2.3) of the extractor (2) is a hemispherical interface that matches the spherical head structure (3.3).
5. An azo extraction device as claimed in claim 3 or 4, characterized in that: The upper opening of the reactor (1) is a conical interface (1.1), and the second opening (2.1) of the extractor (2) is a conical head structure matching the conical interface (1.1).
6. An azo extraction device as claimed in claim 3, characterized in that: When the reactor (1) is sealed and connected to the extractor (2), the reactor (1) is sleeved on the outside of the second opening (2.1); and a thread (1.2) is provided on the outer wall of the upper opening of the reactor (1).
7. An azo extraction device as claimed in claim 3, characterized in that: The condensing tube (3.2) in the condensing cavity (3.1) of the condenser (3) is of a spiral or spherical structure; the upper part of the condensing cavity (3.1) is provided with an exhaust port (3.4) and a cooling liquid interface connected to the condensing tube (3.2).
8. An azo extraction device as claimed in claim 3, characterized in that: The reactor (1), the extractor (2) and the condenser (3) are all made of glass.