Detection frame suitable for azo dye extraction and an azo extraction system

Abstract

The utility model relates to the technical field of textile safety detection, and specifically to a detection frame. The detection frame suitable for azo dye extraction includes: a mounting frame assembly, a locking device and a lifting drive device; the mounting frame assembly includes: a reactor bracket, a back plate, a condenser bracket, a bracket, and a cross plate; the reactor bracket is used to place the reactor and the extractor after sealing connection, and the condenser bracket is used to place the condenser; the reactor bracket is placed on the bracket, and can be locked and fixed with the condenser bracket under the action of the locking device; the output end of the lifting drive device contacts the cross plate, and is used to drive the mounting frame assembly to move up and down along the guide rail. When heating is required, the lifting drive device drives the reactor to fall into the hole of the heater for heating. After the heating is completed, the lifting drive device drives the reactor to move upward to separate from the heater, and accelerates the cooling of the extract in the reactor. At the same time, the utility model also discloses an azo extraction system.

Description

Technical Field

[0001] The utility model relates to the technical field of textile safety detection, in particular to a detection frame and an azo extraction system. Background Art

[0002] Azo dyes are the most widely used synthetic dyes in the printing and dyeing process of textiles and clothing, and are used for dyeing and printing of a variety of natural and synthetic fibers. A few azo dye varieties may produce the following 24 carcinogenic aromatic amines during chemical reaction decomposition, which change the DNA structure of the human body through activation, causing lesions and inducing cancer, so this type of dye is banned in the field of textiles. It is clearly stipulated in my country's "National Basic Safety Technical Specifications for Textile Products" that azo dyes are prohibited in textiles, so the detection of azo dyes is also a very important product testing item in the textile industry.

[0003] GB / T17592-2024 specifies the detection methods and requirements for azo dyes. Appendix G of the standard specifies the extraction methods for azo dyes in 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 extraction device consists of a round-bottom flask, a condenser, and a hook for hanging samples. During operation, 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 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. The extraction solvent vapor is condensed and liquefied in the condenser. The dripping liquid extraction solvent flows through the sample wrapped in 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.

[0004] After the extraction work is completed, it is necessary to wait for the sample to cool down before subsequent operations can be carried out. Because the condenser, round-bottom flask, and heating source need to be fixed together with an iron stand during work, the round-bottom flask cannot be separated from the heating source during cooling. Although the heating source can be turned off, the heat capacity of the heating source is large, and the residual heat is still heating the sample solution. It takes a long time to cool to room temperature, which seriously affects work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a detection frame suitable for azo dye extraction and an azo extraction system in view of the deficiencies of the prior art.

[0006] A technical solution of the utility model is: a detection frame suitable for azo dye extraction, comprising: a mounting frame assembly, a locking device and a lifting drive device.

[0007] The mounting frame assembly comprises: a reactor bracket, a back plate, a condenser bracket installed on the upper part of the back plate, brackets installed on both sides of the back plate, and a transverse plate installed on the rear side of the back plate.

[0008] The reactor bracket is used to place the reactor and the extractor after sealing connection, and the condenser bracket is used to place the condenser; the reactor bracket is placed on the bracket and can be locked and fixed with the condenser bracket under the action of the locking device. The locking device can use buckles set on both sides of the condenser bracket and hooks set on both sides of the reactor bracket. Alternatively, the locking device is an electric / pneumatic locking mechanism set on both sides of the reactor bracket.

[0009] The output end of the lifting drive device contacts the cross plate and is used to drive the mounting frame assembly to move upward along the guide rail. When the output end of the lifting drive device is retracted downward, the mounting frame assembly slides down along the guide rail under the action of its own gravity.

[0010] When conducting azo dye detection, the reactor is sealed and connected to the extractor and then placed on the reactor bracket as a whole; the condenser is placed on the condenser bracket; the heater is located below the reactor bracket; the locking device is used to move the reactor bracket upward and lock it with the condenser bracket, and correspondingly, the extractor moves upward and is sealed and connected with the lower opening of the condenser; the lifting drive device is used to drive the mounting frame assembly to move up and down along the guide rail, so that the reactor falls into or away from the heater; when heating is required, the lifting drive device drives the reactor to fall into the hole of the heater for heating, and after the heating is completed, the lifting drive device drives the reactor to move upward and away from the heater, thereby accelerating the cooling of the extract in the reactor.

[0011] After the liquid in the reactor is cooled, the locking device is released to quickly separate the reactor support, the extractor, the reactor as a whole from the condenser, so as to facilitate the subsequent reduction cracking step.

[0012] In the above scheme, further, a compression spring is provided on the condenser bracket. When the condenser is installed on the condenser bracket, the compression spring contacts the condenser to provide a downward force for the condenser, so as to better seal with the extractor.

[0013] In the above scheme, further, the mounting frame assembly also includes: an upper cover; the upper cover is fixedly mounted on the back plate and is used to cover the coolant interface of the condenser.

[0014] Another technical solution of the utility model is: an azo extraction system, using the detection frame as described above, and further comprising: a reactor, an extractor, a condenser and a heater.

[0015] The reactor and the extractor are sealed and connected and then placed on the reactor support as a whole.

[0016] The condenser is placed on a condenser support.

[0017] The heater is located below the reactor support.

[0018] The locking device is used to move the reactor bracket upward and lock it with the condenser bracket. Correspondingly, the extractor moves upward and is sealed and connected with the lower opening of the condenser. The lifting drive device is used to drive the mounting frame assembly to move up and down along the guide rail, so that the reactor falls into or away from the heater.

[0019] On the basis of the above scheme, further:

[0020] The extractor is provided with two inner and outer cavities, wherein: the inner cavity is a sample cavity for placing the sample 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.

[0021] 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. 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 coolant interface connected to the condensing tube.

[0022] 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.

[0023] The working process is:

[0024] 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; the extractor is sealed and connected to the reactor through the second opening; the reactor and the extractor are sealed and connected and placed on the reactor bracket as a whole; the condenser is placed on the condenser bracket; the locking device is used to move the reactor bracket upward and lock it with the condenser bracket, and correspondingly, the extractor moves upward and is sealed and connected to the condenser through the first opening.

[0025] The flowing coolant is introduced into the condenser tube of the condenser.

[0026] Start the heater, use the lifting drive device to drive the mounting frame assembly to move downward along the guide rail, and let the reactor fall into the heater for heating. Under the action of the heater, 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 down 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, and the condensed extraction solvent continuously flushes the sample from top to bottom to achieve efficient sample extraction.

[0027] After the heating time is reached, the lifting drive device drives the reactor to move upward and away from the heater, thereby accelerating the cooling of the extract in the reactor.

[0028] After the liquid in the reactor cools down, the locking device is released to quickly separate the reactor bracket, the extractor, the reactor as a whole from the condenser. Since the condenser and the extractor are sealed with a spherical mouth connection, the overall separation can be easily achieved after the locking device is released.

[0029] The reactor bracket carrying the reactor and the extractor is pulled out from the brackets on both sides to separate the reactor from the extractor. The reactor containing the extract is placed in a suitable concentration device and concentrated to near dryness before subsequent reduction and cracking treatment.

[0030] On the basis of the above scheme, further, when the reactor is sealed and connected to the extractor, the reactor is sleeved on the outside of the second opening; the outer wall of the upper opening of the reactor is provided with threads. Since the reactor is provided with threads, during the subsequent reduction and cracking treatment, the reduction and cracking reagent can be directly added to the reactor, and a sealing cover that matches the reactor thread is used for sealing. Since the same reactor 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 in the sample transfer process, and improves the accuracy of the analysis and test results.

[0031] Beneficial effects: The detection frame in the utility model is specially designed for the detection of azo dye extraction: the locking device is used to move the reactor bracket upward and lock it with the condenser bracket, and correspondingly, the extractor moves upward and is sealed and connected with the lower opening of the condenser; the lifting drive device is used to drive the mounting frame assembly to move up and down along the guide rail, so that the reactor falls into or moves away from the heater; when heating is required, the lifting drive device drives the reactor to fall into the hole of the heater for heating. After the heating is completed, the lifting drive device drives the reactor to move upward and away from the heater, thereby accelerating the cooling of the extract in the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the detection frame in the utility model.

[0033] Figure 2 It is a structural schematic diagram of another viewing angle of the detection frame in the utility model.

[0034] Figure 3 It is a structural schematic diagram of the azo extraction system in the utility model.

[0035] Figure 4 The utility model is a schematic diagram of the structure of the azo extraction system equipped with an upper cover.

[0036] Figure 5 It is a structural schematic diagram of the extractor in the utility model.

[0037] Figure 6 It is a structural schematic diagram of the reactor in the utility model.

[0038] Figure 7 It is a structural schematic diagram of the condenser in the utility model.

[0039] Figure 8 It is a structural schematic diagram of the sealed connection of the reactor, extractor and condenser in the utility model.

[0040] 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 through hole, 2.2.2-liquid discharge hole, 2.3-first opening, 3-condenser, 3.1-condensation chamber, 3.2-condenser tube, 3.3-spherical head structure, 3.4-exhaust port, 4-heater, 5-mounting frame assembly, 5.1-reactor bracket, 5.2-back plate, 5.3-condenser bracket, 5.4-bracket, 5.5-cross plate, 5.6-upper cover, 6-locking device, 6.1-clip, 6.2-hook, 7-lifting drive device, 8-guide rail, 9-compression spring. DETAILED DESCRIPTION

[0041] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] Example 1: See attached Figure 1 , 2 , a detection frame suitable for azo dye extraction includes: a mounting frame assembly 5, a locking device 6 and a lifting drive device 7.

[0043] The mounting frame assembly 5 comprises: a reactor support 5.1, a back plate 5.2, a condenser support 5.3 installed on the upper part of the back plate 5.2, brackets 5.4 installed on both sides of the back plate 5.2, and a transverse plate 5.5 installed on the rear side of the back plate 5.2.

[0044] The reactor bracket 5.1 is used to place the reactor 1 and the extractor 2 after sealing connection, and the condenser bracket 5.3 is used to place the condenser 3; the reactor bracket 5.1 is placed on the bracket 5.4, and can be locked and fixed with the condenser bracket 5.3 under the action of the locking device 6. In this example: the locking device 6 can use the buckle 6.1 set on both sides of the condenser bracket 5.3, and the hook 6.2 set on both sides of the reactor bracket 5.1. Alternatively, the locking device 6 is an electric / pneumatic locking device set on both sides of the reactor bracket 5.1.

[0045] The output end of the lifting drive device 7 contacts the cross plate 5.5 to drive the mounting frame assembly 5 to move upward along the guide rail 8. When the output end of the lifting drive device 7 is retracted downward, the mounting frame assembly 5 slides down along the guide rail 8 under the action of its own gravity.

[0046] When performing azo dye detection, the reactor 1 is sealed and connected with the extractor 2 and then placed on the reactor bracket 5.1 as a whole; the condenser 3 is placed on the condenser bracket 5.3; the heater 4 is located below the reactor bracket 5.1; the locking device 6 is used to move the reactor bracket 5.1 upward and lock it with the condenser bracket 5.3, and correspondingly, the extractor 2 moves upward and is sealed and connected with the lower opening of the condenser 3; the lifting drive device 7 is used to drive the mounting frame assembly 5 to move up and down along the guide rail 8, so that the reactor 1 falls into or away from the heater 4; when heating is required, the lifting drive device 7 drives the reactor 1 to fall into the hole of the heater 4 for heating, and after the heating is completed, the lifting drive device 7 drives the reactor 1 to move upward and away from the heater 4, thereby accelerating the cooling of the extract in the reactor 1.

[0047] After the liquid in the reactor 1 is cooled, the locking device 6 is released, so that the reactor support 5.1, the extractor 2, the reactor 1 as a whole are quickly separated from the condenser 3, so as to facilitate the subsequent reduction cracking step.

[0048] Example 2, see attached Figure 4 , based on Example 1, further:

[0049] A compression spring 9 is also provided on the condenser bracket 5.3. When the condenser 3 is mounted on the condenser bracket 5.3, the compression spring 9 contacts the condenser 3 and applies a downward force, so as to achieve better sealing with the extractor 2.

[0050] The mounting frame assembly 5 further comprises: an upper cover 5.6; the upper cover 5.6 is fixedly mounted on the back plate 5.2 and is used to cover the coolant interface of the condenser 3.

[0051] Example 3, see attached Figure 3 , an azo extraction system, using the detection frame as described in Example 1 or 2, and also including: a reactor 1, an extractor 2, a condenser 3 and a heater 4.

[0052] See attached Figure 8 The reactor 1 and the extractor 2 are sealed and connected and then placed on the reactor support 5.1 as a whole.

[0053] The condenser 3 is placed on the condenser support 5.3.

[0054] The heater 4 is located below the reactor support 5.1.

[0055] The locking device 6 is used to move the reactor bracket 5.1 upward and lock it with the condenser bracket 5.3. Correspondingly, the extractor 2 moves upward and is sealedly connected with the lower opening of the condenser 3. The lifting drive device 7 is used to drive the mounting frame assembly 5 to move up and down along the guide rail 8, so that the reactor 1 falls into or away from the heater 4.

[0056] In this example, further:

[0057] See attached Figure 5 The extractor 2 is provided with two inner and outer cavities, wherein: 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.

[0058] 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.

[0059] See attached Figure 7 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.

[0060] The working process is:

[0061] 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; the extractor 2 is sealed and connected to the reactor 1 through the second opening 2.1; after the reactor 1 and the extractor 2 are sealed and connected, the whole is placed on the reactor bracket 5.1; the condenser 3 is placed on the condenser bracket 5.3; the locking device 6 is used to move the reactor bracket 5.1 upward and lock it with the condenser bracket 5.3, and correspondingly, the extractor 2 moves upward and is sealed and connected to the condenser 3 through the first opening 2.3.

[0062] A flowing coolant is introduced into the condensation tube 3 . 2 of the condenser 3 .

[0063] Start the heater 4, use the lifting drive device 7 to drive the mounting frame assembly 5 to move downward along the guide rail 8, and let the reactor 1 fall into the heater 4 for heating. Under the action of the heater 4, 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, and the condensed extraction solvent continuously flushes the sample from top to bottom to achieve efficient sample extraction.

[0064] After the heating time is reached, the lifting drive device 7 drives the reactor 1 to move upward and away from the heater 4, thereby accelerating the cooling of the extract in the reactor 1.

[0065] After the liquid in the reactor 1 is cooled, the locking device 6 is released to quickly separate the reactor support 5.1, the extractor 2, and the reactor 1 as a whole from the condenser 3. Since the condenser 3 and the extractor 2 are sealed by a spherical mouth connection, the overall separation can be easily achieved after the locking device 6 is released.

[0066] The reactor support 5.1 carrying the reactor 1 and the extractor 2 is pulled out from the brackets 5.4 on both sides to separate the reactor 1 from the extractor 2. The reactor 1 containing the extract is placed in a suitable concentration device and concentrated to near dryness before subsequent reduction and cracking treatment.

[0067] 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.

[0068] 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. Detection frame suitable for azo dye extraction, including: The mounting frame assembly (5), the locking device (6) and the lifting drive device (7) are characterized in that: The mounting frame assembly (5) comprises: a reactor support (5.1), a back plate (5.2), a condenser support (5.3) mounted on the upper part of the back plate (5.2), brackets (5.4) mounted on both sides of the back plate (5.2), and a transverse plate (5.5) mounted on the rear side of the back plate (5.2); The reactor support (5.1) is used to place the reactor (1) and the extractor (2) after being sealed and connected, and the condenser support (5.3) is used to place the condenser (3); the reactor support (5.1) is placed on the bracket (5.4) and can be locked and fixed with the condenser support (5.3) under the action of the locking device (6); The output end of the lifting drive device (7) contacts the transverse plate (5.5) and is used to drive the mounting frame assembly (5) to move upward along the guide rail (8). When the output end of the lifting drive device (7) is retracted downward, the mounting frame assembly (5) slides down along the guide rail (8) under the action of its own weight.

2. The detection frame suitable for azo dye extraction as claimed in claim 1, characterized in that: A compression spring (9) is also provided on the condenser support (5.3); when the condenser (3) is installed on the condenser support (5.3), the compression spring (9) is in contact with the condenser (3).

3. The detection frame suitable for azo dye extraction as claimed in claim 1 or 2, characterized in that: The locking device (6) comprises: buckles (6.1) arranged on both sides of the condenser support (5.3), and hooks (6.2) arranged on both sides of the reactor support (5.1).

4. The detection frame suitable for azo dye extraction as claimed in claim 1 or 2, characterized in that: The locking device (6) is an electric / pneumatic locking mechanism arranged on both sides of the reactor support (5.1).

5. An azo extraction system, using the detection frame according to any one of claims 1 to 4, characterized in that: The system further comprises: a reactor (1), an extractor (2), a condenser (3) and a heater (4); The reactor (1) and the extractor (2) are sealed and connected and then placed as a whole on the reactor support (5.1); The condenser (3) is placed on the condenser support (5.3); The heater (4) is located below the reactor support (5.1); The locking device (6) is used to move the reactor support (5.1) upward and lock it with the condenser support (5.3), and correspondingly, the extractor (2) moves upward and is sealedly connected with the lower opening of the condenser (3); the lifting drive device (7) is used to drive the mounting frame assembly (5) to move up and down along the guide rail (8), so that the reactor (1) falls into or moves away from the heater (4).

6. An azo extraction system as claimed in claim 5, characterized in that: The extractor (2) is provided with two inner and outer cavities, wherein: the inner 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); and the outer cavity is provided with a second opening (2.1) facing downward.

7. An azo extraction system as claimed in claim 6, 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).

8. An azo extraction system as claimed in claim 6, 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).

9. An azo extraction system as claimed in claim 6, 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).

10. An azo extraction system as claimed in claim 5, 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).

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