Extraction device for Kathon production

Abstract

The utility model relates to the technical field of Kathon production, in particular to an extraction device for Kathon production, which comprises a body, one side of the upper part of the body is provided with a feed liquid inlet, one side of the lower part of the body is provided with an extraction agent inlet, the top of the body is provided with a light phase outlet, and one side of the bottom of the body is provided with a heavy phase outlet; a feed liquid disperser is arranged at the upper part in the body, a rotating shaft is arranged in the body, one end of the rotating shaft is connected with a motor, a plurality of dispersing parts are arranged on the rotating shaft, an auxiliary dispersing part is arranged between every two adjacent dispersing parts, and turbulent flow parts are respectively arranged on two sides in the body. The extraction device with the structure is reasonable in design, the extraction efficiency is greatly improved, effective extraction of MIT is realized, and the purity of Kathon is further improved.

Description

Technical Field

[0001] This utility model relates to the field of Kathon production technology, and in particular to an extraction device for Kathon production. Background Technology

[0002] Kathon is a preservative widely used in the preservation and sterilization processes of cosmetics, detergents, coatings, water-based adhesives, inks, dyes, color pastes, printing pastes, leather, industrial circulating water treatment, textiles, and other industries.

[0003] Kathon, a powerful, broad-spectrum, highly efficient, and non-toxic green adjuvant, is considered one of the most promising preservatives internationally. Its main components are isothiazolinone and its inorganic salt stabilizers, typically in a CMI:MIT ratio of 3:1. Kathon's advantage lies in its broad-spectrum antibacterial properties, effectively inhibiting and killing various bacteria, fungi, and yeasts, remaining effective even at low concentrations. Kathon production involves first synthesizing MIT, then synthesizing CMI from MIT, and finally compounding the two components to obtain the Kathon product. However, after MIT synthesis, it may still contain impurities such as water, solvents, unreacted raw materials, byproducts, and added stabilizers (e.g., magnesium nitrate). Current technology uses an extraction vessel to improve the purity of MIT, thereby increasing the purity of the Kathon product; however, the extraction efficiency is low and impurities cannot be effectively removed. Therefore, to address these issues, it is necessary to develop an extraction device for Kathon production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an extraction device for Kathon production, which greatly improves the extraction efficiency and thus improves the purity of Kathon products, in order to address the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An extraction apparatus for Kathon production includes a main body, a feed liquid inlet pipe on the upper side of the main body, an extractant inlet pipe on the lower side of the main body, a light phase outlet on the top of the main body, and a heavy phase outlet on the bottom side of the main body; a feed liquid disperser is provided inside the main body at the top, a rotating shaft is provided inside the main body, one end of the rotating shaft is connected to a motor, multiple dispersing components are provided on the rotating shaft, an auxiliary dispersing component is provided between two adjacent dispersing components, and turbulence-inducing components are provided on both sides of the inside of the main body.

[0007] As an improved technical solution, the liquid disperser includes a tank body, the bottom of the tank body is provided with multiple material distribution holes, the upper edge of the tank body is provided with multiple serrations, an overflow port is formed between two adjacent serrations, and each overflow port is provided with an arc-shaped guide plate, the guide plate is provided with multiple through holes.

[0008] As an improved technical solution, the dispersing component includes a disc body, a baffle plate is provided around the disc body, multiple through holes are provided at the bottom of the disc body, multiple through holes are provided on the baffle plate, multiple diversion pipes are provided on the outer wall of the baffle plate, and multiple liquid distribution holes are provided on the diversion pipes. The diversion pipes are connected to the disc body through the through holes on the baffle plate.

[0009] As an improved technical solution, the auxiliary dispersion component includes a V-shaped plate with a hollow structure, the edge of the V-shaped plate is provided with a guide block, the guide block is provided with a plurality of guide holes, and the longitudinal section of the guide block is V-shaped.

[0010] As an improved technical solution, the turbulence-disrupting component is a turbulence-disrupting plate disposed on the inner walls of both sides of the main body, and the turbulence-disrupting plate is provided with multiple through holes.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are:

[0012] The extraction device for Kathon production includes a main body, with a feed liquid inlet pipe on one side of the upper part of the main body, an extractant inlet pipe on one side of the lower part of the main body, a light phase outlet at the top of the main body, and a heavy phase outlet on one side of the bottom of the main body; a feed liquid disperser is located at the top inside the main body, and a rotating shaft is located inside the main body, with one end of the rotating shaft connected to a motor, and multiple dispersing components are located on the rotating shaft, with an auxiliary dispersing component between two adjacent dispersing components; and turbulence-inducing components are located on both sides inside the main body. In actual production, the MIT (Methyl Acetate) feed solution, driven by a delivery pump, enters the feed disperser through the feed inlet pipe. The extractant, also driven by a delivery pump, enters the main body through the extractant inlet pipe. After the motor starts, it drives the rotating shaft, multiple dispersion components, and auxiliary dispersion components to rotate. The MIT feed solution, after being uniformly dispersed by the feed disperser, flows downwards under gravity. Through the synergistic action of multiple dispersion components, auxiliary dispersion components, and turbulence-inducing components, the MIT feed solution and extractant come into full contact, allowing the MIT to enter the extraction solvent phase, thus achieving effective extraction of MIT. After settling and stratification, the upper aqueous phase is discharged from the light phase outlet, and the lower organic phase containing MIT is discharged from the heavy phase outlet. This extraction device is rationally designed, greatly improving extraction efficiency and achieving effective extraction of MIT, thereby increasing the purity of Kathon.

[0013] The liquid disperser includes a tank with multiple distribution holes at the bottom and multiple serrations on the upper edge. An overflow port is formed between adjacent serrations, and each overflow port has an arc-shaped guide plate with multiple through holes. The MIT liquid enters the tank, partially dispersing evenly through the distribution holes and partially flowing through the overflow port to the guide plate, where it is further dispersed evenly through the through holes. This well-designed liquid disperser achieves uniform dispersion of the MIT liquid and facilitates better contact between the MIT liquid and the extractant.

[0014] The dispersing component includes a disc body surrounded by a baffle. The bottom of the disc body has multiple through holes, as does the baffle. The outer wall of the baffle has multiple distribution pipes with multiple liquid distribution holes. These distribution pipes are connected to the disc body through the through holes in the baffle. After being dispersed by the liquid disperser, the liquid falls onto the disc body. Part of it passes through the through holes at the bottom of the disc body and disperses evenly, while part passes through the through holes in the baffle and enters the distribution pipes. After passing through the liquid distribution holes, it disperses evenly and then flows downwards to contact the extractant. Throughout this process, the dispersing component also achieves thorough stirring of the MIT liquid and extractant, greatly improving extraction efficiency.

[0015] Because the auxiliary dispersion component includes a V-shaped plate with a hollow structure, and guide blocks with multiple guide holes on the edge of the V-shaped plate, the longitudinal section of the guide blocks is V-shaped. MIT liquid falls onto the V-shaped plate; some MIT liquid passes through the V-shaped plate and disperses evenly, while some MIT liquid passes through the guide holes on the guide blocks and disperses downwards towards the main body. Simultaneously, the auxiliary dispersion component, with the rotation of the shaft, thoroughly stirs and mixes the MIT liquid and extractant, further facilitating the complete extraction of MIT.

[0016] The flow-dispersing components are baffles mounted on the inner walls of both sides of the main body, with multiple through holes on the baffles. When the MIT liquid flows downwards after dispersion, the extractant enters the main body and flows upwards. The MIT liquid and extractant collide with the baffles during their flow and are further dispersed after passing through the through holes. By setting up the baffles, the MIT liquid and extractant can be further dispersed, which is helpful for the extraction of MIT. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an extraction device for Kathon production according to this utility model;

[0018] Among them, 1-body, 10-feed liquid inlet pipe, 11-extractant inlet pipe, 12-light phase outlet, 13-heavy phase outlet, 2-feed liquid disperser, 20-tank body, 21-serration, 22-guide plate, 3-rotating shaft, 4-motor, 5-dispersion component, 50-disc body, 51-baffle, 52-diverter pipe, 6-auxiliary dispersion component, 60-V-shaped plate, 61-guide block, 7-turbulence component. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] An extraction apparatus for Kathon production, such as Figure 1 As shown, the device includes a main body 1, with a liquid inlet pipe 10 on one side of the upper part and an extractant inlet pipe 11 on one side of the lower part. A light phase outlet 12 is located at the top of the main body 1, and a heavy phase outlet 13 is located at one side of the bottom. Inside the main body 1, a liquid disperser 2 (including a tank 20, welded to the inner wall of the main body via a connecting plate, with multiple distribution holes at the bottom and multiple serrations 21 on the upper edge, forming an overflow port between adjacent serrations, and an arc-shaped guide plate 22 with multiple through holes at each overflow port) is located. Inside the main body 1, a rotating shaft 3 is located, with one end connected to a motor 4. Multiple dispersing components 5 (including...) are mounted on the rotating shaft 4. The system includes a disc body 50, with a baffle 51 surrounding the disc body 50. The bottom of the disc body 50 has multiple through holes, and the baffle 51 has multiple through holes. The outer wall of the baffle 51 has multiple diversion pipes 52, and the diversion pipes 52 have multiple liquid distribution holes. The diversion pipes 52 are connected to the disc body 50 through the through holes on the baffle 51. An auxiliary dispersion component 6 (including a hollow V-shaped plate 60, with a guide block 61 on the edge of the V-shaped plate 60, and multiple guide holes on the guide block 61, the longitudinal section of the guide block 61 being V-shaped) is provided between two adjacent dispersion components 5. The inner sides of the main body 2 are respectively provided with turbulence components 7 (turbulence plates set on the inner walls of the two sides of the main body, with multiple through holes on the turbulence plates).

[0021] In actual production, the MIT (Mixed Extractant) liquid, under the action of the delivery pump, enters the tank of the liquid disperser through the liquid inlet pipe. Part of it is evenly dispersed through the distribution holes at the bottom of the tank, and part flows through the overflow port to the guide plate, passing through the through-holes on the guide plate for even dispersion. The extractant, under the action of the delivery pump, enters the main body through the extractant inlet pipe. After the motor starts, it drives the rotating shaft, multiple dispersion components, and auxiliary dispersion components to rotate. The liquid, after being dispersed by the liquid disperser, falls onto the disk of the dispersion component. Part of it is evenly dispersed through the through-holes at the bottom of the disk, and part passes through the through-holes of the baffle plate into the distribution pipe, passing through the distribution holes for even dispersion, and then flows downwards to contact the extractant. As the MIT liquid flows downwards after dispersion, the extractant enters the main body. The MIT feed liquid and extractant flow upwards from the back of the body. As they flow, they collide with the baffle plate, pass through the through holes, and are further dispersed before falling onto the V-shaped plate. Some of the MIT feed liquid passes through the V-shaped plate and is evenly dispersed, while some of the MIT feed liquid passes through the guide holes on the guide block and is dispersed downwards from the body. Throughout the process, the dispersion components and auxiliary dispersion components also achieve thorough stirring of the MIT feed liquid and extractant. In addition, as the MIT feed liquid flows downwards from the body after dispersion, the extractant enters the body and flows upwards. As the MIT feed liquid and extractant flow, they collide with the baffle plate and are further dispersed after passing through the through holes, which helps to extract MIT and greatly improves the extraction efficiency. After settling and stratification, the upper aqueous phase is discharged from the light phase outlet, and the lower organic phase containing MIT is discharged from the heavy phase outlet.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extraction apparatus for Kathon production, characterized in that, The device includes a main body, with a liquid inlet on the upper side and an extractant inlet on the lower side. A light phase outlet is located at the top of the main body, and a heavy phase outlet is located at the bottom. A liquid disperser is located inside the main body, and a rotating shaft is located inside the main body. One end of the rotating shaft is connected to a motor. Multiple dispersing components are mounted on the rotating shaft, and an auxiliary dispersing component is located between adjacent dispersing components. Turbulence-inducing components are located on both sides of the interior of the main body.

2. The extraction apparatus for Kathon production according to claim 1, characterized in that, The liquid disperser includes a tank body with multiple material distribution holes at the bottom and multiple serrations at the upper edge of the tank body. An overflow port is formed between two adjacent serrations, and an arc-shaped guide plate is provided at each overflow port. The guide plate has multiple through holes.

3. The extraction apparatus for Kathon production according to claim 1, characterized in that, The dispersing component includes a disc body, a baffle plate surrounding the disc body, multiple through holes at the bottom of the disc body, multiple through holes on the baffle plate, multiple diversion pipes on the outer wall of the baffle plate, and multiple liquid distribution holes on the diversion pipes. The diversion pipes are connected to the disc body through the through holes on the baffle plate.

4. An extraction apparatus for Kathon production according to claim 1, characterized in that, The auxiliary dispersion component includes a V-shaped plate with a hollow structure. The edge of the V-shaped plate is provided with a guide block, and the guide block is provided with multiple guide holes. The longitudinal section of the guide block is V-shaped.

5. An extraction apparatus for Kathon production according to claim 1, characterized in that, The turbulence-disrupting component is a turbulence-disrupting plate installed on the inner walls of both sides of the main body, and the turbulence-disrupting plate has multiple through holes.

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