A reduction cleavage device for detecting banned azo dyes in textiles

Abstract

The utility model relates to the technical field of reduction cleavage, specifically disclose a kind of reduction cleavage device for detecting forbidden azo dye of textile, including cylinder, the upper surface of cylinder is fixedly connected with multiple support rods, the top of multiple support rods is fixedly connected with round plate, the upper surface of round plate is fixedly connected with multiple tripods, the inner wall of tripod is equipped with the drive mechanism that container is lifted, the inside of cylinder is equipped with the dispersion mechanism that the fixed particles in the bottom of container are dispersed, the dispersion mechanism is set, booster pump supplies water to spray head by second connecting pipe, the water flow that spray head sprays can form impact to the fixed particles, such as catalyst, adsorbent, that the bottom of reaction container deposits, it is dispersed and suspended in reaction liquid, avoid that particle deposits due to gravity and hardly contact with reaction liquid sufficiently, let azo dye cleave well, reduce the detection false negative or numerical deviation caused by insufficient reaction, improve detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of reduction pyrolysis technology, and in particular to a reduction pyrolysis device for detecting prohibited azo dyes in textiles. Background Technology

[0002] Reduction pyrolysis for azo dye detection is a standard chemical pretreatment method specifically used to detect whether textiles, leather and other products contain prohibited azo dyes that can decompose into carcinogenic aromatic amines. Its core principle is to chemically treat the sample in a buffer solution using reducing agents such as sodium dithionite under strict temperature and control conditions.

[0003] When performing reduction pyrolysis, a reaction vessel is required. However, the reaction vessels of existing devices are mostly statically designed and lack anti-deposition structures. During the detection process, fixed particles such as catalysts and adsorbents required for the reduction reaction are easily deposited at the bottom of the vessel due to gravity. The deposited particles are difficult to mix and contact fully with the reaction liquid, resulting in the reduction pyrolysis reaction only occurring locally in the upper layer of the liquid. The particles at the bottom cannot participate in the reaction, causing incomplete pyrolysis of azo dyes. As a result, the detection results may be false negatives or numerical deviations, making it difficult to accurately determine whether textiles contain prohibited azo dyes. Therefore, we propose a reduction pyrolysis device for detecting prohibited azo dyes in textiles. Utility Model Content

[0004] The purpose of this invention is to provide a reduction and pyrolysis device for detecting prohibited azo dyes in textiles, in order to solve the problem that the reaction containers of existing devices mentioned in the background art are mostly static designs and do not have anti-deposition structures. During the detection process, fixed particles, such as catalysts and adsorbents required for the reduction reaction, are easily deposited at the bottom of the container due to gravity. The deposited particles are difficult to mix and contact fully with the reaction liquid, resulting in the reduction and pyrolysis reaction only taking place locally in the upper layer of the liquid. The particles at the bottom are difficult to participate in the reaction, resulting in incomplete pyrolysis of azo dyes. As a result, the detection results may be false negatives or numerical deviations, making it difficult to accurately determine whether textiles contain prohibited azo dyes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reduction and pyrolysis device for detecting prohibited azo dyes in textiles, comprising a cylinder, wherein multiple support rods are fixedly connected to the upper surface of the cylinder, a circular plate is fixedly connected to the top of the multiple support rods, multiple tripods are fixedly connected to the upper surface of the circular plate, a driving mechanism for lifting and lowering a container is provided on the inner wall of the tripods, and a dispersing mechanism for dispersing fixed particles at the bottom of the container is provided inside the cylinder.

[0006] Preferably, the driving mechanism includes a motor fixedly connected to the inner wall of the tripod, a transmission rod splined to the output end of the motor, a winding spool fixedly mounted at one end of the transmission rod, and a fixed plate rotatably connected to one end of the winding spool. The motor drives the winding spool to rotate and wind up and unwind the connecting rope, providing power for the lifting and lowering of the container. The fixed plate stabilizes the winding spool, ensuring that the lifting and lowering action is controllable.

[0007] Preferably, the bottom of the fixing plate is fixedly connected to the fixing plate, and a connecting rope is wound around the outer wall of the winding shaft of the fixing plate. Multiple mounting plates are fixedly connected to the outer wall of the connecting rope. The connecting rope drives the mounting plate to rise and fall synchronously with the container, adapting to the container position requirements of different testing stages and improving operational flexibility.

[0008] Preferably, a water tank is fixedly connected to the outer wall of the cylinder, and an inlet is provided on the upper surface of the water tank. The water tank stores water, and the inlet facilitates the replenishment of water, providing a stable water supply foundation for the subsequent dispersing mechanism and meeting the water demand for testing.

[0009] Preferably, the dispersing mechanism includes a booster pump fixedly connected to the front end of the water tank. The input end of the booster pump is fixedly connected to a first connecting pipe, the other end of the first connecting pipe is connected to the inside of the water tank, and the output end of the booster pump is fixedly connected to a second connecting pipe. The booster pump pressurizes and delivers water, and the dual connecting pipes realize water source transmission, providing high-pressure water flow power for dispersing particles in the container.

[0010] Preferably, a flow divider is fixedly connected to one end of the second connecting pipe, and a nozzle is fixedly installed on the upper surface of the flow divider. The nozzle extends to the bottom of the reaction vessel and is arranged in five groups at equal intervals. Each group has several nozzles. The flow divider disperses the water flow, and multiple groups of nozzles accurately spray to the bottom of the vessel, efficiently dispersing and fixing particles to ensure a complete reduction and pyrolysis reaction.

[0011] This utility model has at least the following beneficial effects: (1) Through the set dispersing mechanism, the booster pump supplies water to the nozzle through the second connecting pipe. The water flow sprayed from the nozzle can impact the fixed particles deposited at the bottom of the reaction container, such as catalysts and adsorbents, to disperse and suspend them in the reaction liquid. This avoids the particles from being unable to fully contact the reaction liquid due to gravity deposition, allowing the azo dye to decompose well, reducing false negatives or numerical deviations caused by insufficient reaction, and improving the accuracy of detection.

[0012] (2) When the driving mechanism is set up to drive the reaction container to move up and down, it will cause the internal reaction liquid to form convection and disturbance in the vertical direction. Combined with the dispersing mechanism, this dynamic action can impact the particles deposited at the bottom of the reaction container, further peeling the fixed particles at the bottom from the bottom and suspending them in the reaction liquid, which greatly improves the practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the water tank and inlet structure of this utility model; Figure 3 This is a cross-sectional view of the inside of the cylinder of this utility model; Figure 4 This is a schematic diagram of the flow divider and nozzle structure of this utility model.

[0014] In the diagram: 1. Cylinder; 2. Support rod; 3. Circular plate; 4. Tripod; 5. Drive mechanism; 51. Motor; 52. Winding spool; 53. Fixing plate; 54. Connecting rope; 55. Mounting plate; 6. Reaction vessel; 61. Water tank; 62. Water inlet; 7. Dispersing mechanism; 71. Booster pump; 72. First connecting pipe; 73. Second connecting pipe; 74. Diverter frame; 75. Nozzle. Detailed Implementation

[0015] 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 protection scope of the present utility model.

[0016] Please see Figures 1 to 4 This utility model provides a technical solution: a reduction and pyrolysis device for detecting prohibited azo dyes in textiles, including a cylinder 1, a plurality of support rods 2 fixedly connected to the upper surface of the cylinder 1, a circular plate 3 fixedly connected to the top of the plurality of support rods 2, a plurality of tripods 4 fixedly connected to the upper surface of the circular plate 3, a drive mechanism 5 for lifting and lowering the container provided on the inner wall of the tripods 4, and a dispersing mechanism 7 for dispersing the fixed particles at the bottom of the container provided inside the cylinder 1.

[0017] The drive mechanism 5 includes a motor 51 fixedly connected to the inner wall of the tripod 4. A transmission rod is splined to the output end of the motor 51. A winding spool 52 is fixedly mounted on one end of the transmission rod. A fixing plate 53 is rotatably connected to one end of the winding spool 52. The bottom of the fixing plate 53 is fixedly connected to the circular plate 3. A connecting rope 54 is wound around the outer wall of the winding spool 52 on the fixing plate 53. Multiple mounting plates 55 are fixedly connected to the outer wall of the connecting rope 54. A water tank 61 is fixedly connected to the outer wall of the cylinder 1. A water inlet 62 is provided on the upper surface of the water tank 61. The operator starts the motor 51. The rotating spool 52 drives the connecting rope 54 to wind and unwind, thereby causing the reaction container 6 to rise or fall. Water can be added to the water tank 61 through the inlet 62. When the reaction container 6 moves up and down through the drive mechanism 5, it causes the internal reaction liquid to form vertical convection and disturbance. Combined with the dispersing mechanism 7, this dynamic action can impact the particles deposited at the bottom of the reaction container 6, further stripping the fixed particles from the bottom and suspending them in the reaction liquid, greatly improving its practicality.

[0018] The dispersing mechanism 7 includes a booster pump 71 fixedly connected to the front end of the water tank 61. The input end of the booster pump 71 is fixedly connected to a first connecting pipe 72, and the other end of the first connecting pipe 72 is connected to the inside of the water tank 61. The output end of the booster pump 71 is fixedly connected to a second connecting pipe 73. One end of the second connecting pipe 73 is fixedly connected to a flow divider 74. A nozzle 75 is fixedly installed on the upper surface of the flow divider 74. The nozzle 75 extends to the bottom of the reaction vessel 6. The nozzles 75 are arranged in five groups at equal intervals, and each group has several nozzles 75. Through the dispersing mechanism 7, the booster pump 71 supplies water to the nozzles 75 through the second connecting pipe 73. The water flow sprayed from the nozzles 75 can impact the fixed particles, such as catalysts and adsorbents, deposited at the bottom of the reaction vessel 6, dispersing and suspending them in the reaction liquid. This avoids the particles from being unable to fully contact the reaction liquid due to gravity deposition, allowing the azo dye to decompose well, reducing false negatives or numerical deviations caused by incomplete reaction, and improving detection accuracy.

[0019] Working principle: When it is necessary to remove particles deposited at the bottom of the reaction container 6, the operator starts the booster pump 71 to draw water from the water tank 61. The water then flows through the second connecting pipe 73 into the diversion frame 74 and is sprayed out through the nozzle 75 on the diversion frame 74. Since the nozzle 75 is located at the bottom of the reaction container 6, it can disperse the fixed particles deposited at the bottom of the reaction container 6 and suspend them in the reaction liquid. When it is necessary to adjust the reaction container 6, the operator starts the motor 51 to drive the winding shaft 52 to rotate. The rotation of the winding shaft 52 can drive the connecting rope 54 to wind up and release, thereby driving the reaction container 6 to rise or fall.

[0020] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0021] It will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reduction pyrolysis apparatus for detecting prohibited azo dyes in textiles, comprising a cylinder (1), characterized in that: The upper surface of the cylinder (1) is fixedly connected with multiple support rods (2), and the top of the multiple support rods (2) is fixedly connected with a circular plate (3). The upper surface of the circular plate (3) is fixedly connected with multiple tripods (4). The inner wall of the tripods (4) is provided with a drive mechanism (5) for lifting the container. The inside of the cylinder (1) is provided with a dispersing mechanism (7) for dispersing the fixed particles at the bottom of the container.

2. The reduction pyrolysis device for detecting prohibited azo dyes in textiles according to claim 1, characterized in that: The drive mechanism (5) includes a motor (51) fixedly connected to the inner wall of the tripod (4). The output end of the motor (51) is splinedly connected to a transmission rod. One end of the transmission rod is fixedly mounted with a winding spool (52). One end of the winding spool (52) is rotatably connected to a fixing plate (53).

3. The reduction pyrolysis device for detecting prohibited azo dyes in textiles according to claim 2, characterized in that: The bottom of the fixing plate (53) is fixedly connected to the circular plate (3), and a connecting rope (54) is wound around the outer wall of the winding shaft (52) of the fixing plate (53). Multiple mounting plates (55) are fixedly connected to the outer wall of the connecting rope (54).

4. The reduction pyrolysis device for detecting prohibited azo dyes in textiles according to claim 1, characterized in that: A water tank (61) is fixedly connected to the outer wall of the cylinder (1), and an inlet (62) is provided on the upper surface of the water tank (61).

5. The reduction pyrolysis device for detecting prohibited azo dyes in textiles according to claim 1, characterized in that: The dispersing mechanism (7) includes a booster pump (71) fixedly connected to the front end of the water tank (61). The input end of the booster pump (71) is fixedly connected to a first connecting pipe (72), and the other end of the first connecting pipe (72) is connected to the inside of the water tank (61). The output end of the booster pump (71) is fixedly connected to a second connecting pipe (73).

6. The reduction pyrolysis apparatus for detecting prohibited azo dyes in textiles according to claim 5, characterized in that: One end of the second connecting pipe (73) is fixedly connected to a flow divider (74), and a nozzle (75) is fixedly installed on the upper surface of the flow divider (74). The nozzle (75) extends to the bottom of the reaction vessel (6). The nozzles (75) are arranged in five groups at equal intervals, and each group has several nozzles (75).

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