Mixing system for Kathon production

Abstract

The utility model relates to the technical field of Kathon production, in particular to a mixing system for Kathon production, which comprises a first dissolving kettle and a second dissolving kettle, a discharge port of the first dissolving kettle is communicated with a first impurity removal device, a discharge port of the second dissolving kettle is communicated with a second impurity removal device, a discharge port of the first impurity removal device is communicated with a first buffer kettle, and a discharge port of the second buffer kettle is communicated with a second buffer kettle. A discharge port of the second impurity removal device is communicated with a second buffer kettle, a discharge port of the first buffer kettle and a discharge port of the second buffer kettle are respectively communicated with a mixing kettle, and a discharge port of the mixing kettle is communicated with a product storage tank. The mixing system with the structure is reasonable in design, and the purity and the stability of Kathon products are improved.

Description

Technical Field

[0001] This utility model relates to the field of Kathon production technology, and in particular to a mixing system for Kathon production. Background Technology

[0002] Kathon is a preservative widely used in cosmetics, detergents, coatings, water-based adhesives, inks, dyes, color pastes, printing pastes, leather, industrial circulating water treatment, textiles, and other industries for preservation and sterilization. Its main components are isothiazolinone and its inorganic salt stabilizers, typically in a CMI:MIT ratio of 3:1. Kathon production involves first synthesizing MIT, then synthesizing CMI from MIT, and finally compounding them to obtain the Kathon product. Currently, MIT and CMI are directly added to a mixing device along with a solvent, and then stirred to prepare the Kathon product. However, this mixing method results in the presence of insoluble particulate matter and impurities such as metal ions in the Kathon product, which affect its purity and stability, ultimately impacting its performance. Therefore, to address these issues, it is necessary to develop a mixing system for Kathon production. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a mixing system for Kathon production, which greatly improves the purity of Kathon products and ensures their effectiveness in use, in order to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A mixing system for Kathon production includes a first dissolving vessel and a second dissolving vessel. The outlet of the first dissolving vessel is connected to a first impurity removal device, and the outlet of the second dissolving vessel is connected to a second impurity removal device. The outlet of the first impurity removal device is connected to a first buffer vessel, and the outlet of the second impurity removal device is connected to a second buffer vessel. The outlets of the first buffer vessel and the second buffer vessel are respectively connected to a mixing vessel, and the outlet of the mixing vessel is connected to a product storage tank.

[0006] As an improved technical solution, both the first dissolving vessel and the second dissolving vessel include a vessel body. The top of the vessel body is provided with a feed inlet and a solvent inlet, and the bottom of the vessel body is provided with a discharge outlet. The interior of the vessel body is provided with a rotating shaft. One end of the rotating shaft is connected to a motor. A fixed seat is provided on the rotating shaft. I-shaped stirring frames are provided on both sides of the fixed seat. Multiple stirring rods are provided on the stirring frames. Multiple spiral blades are provided on the rotating shaft below the fixed seat. A hollow stirring plate is provided between two adjacent spiral blades.

[0007] As an improved technical solution, the first impurity removal device includes a body, with a feed inlet at the top and a discharge outlet at the bottom. The body has a diatomaceous earth adsorption layer inside, a chitosan adsorption layer below the diatomaceous earth adsorption layer, and a molecular sieve adsorption layer below the chitosan adsorption layer.

[0008] As an improved technical solution, the second impurity removal device includes a body, with a feed inlet at the top and a discharge outlet at the bottom. An activated carbon adsorption layer is provided inside the body, a silica gel adsorption layer is provided below the activated carbon adsorption layer, and an ion exchange resin adsorption layer is provided below the silica gel adsorption layer.

[0009] As an improved technical solution, the mixing vessel includes a vessel body, with a first feed pipe and a second feed pipe respectively provided on the top and upper side of the vessel body, and a discharge port provided at the bottom of the vessel body. A first feeder is connected to the first feed pipe at the top of the interior of the vessel body, and a second feeder is provided below the first feeder and connected to the second feed pipe. A rotating shaft is provided below the second feeder, with one end of the rotating shaft connected to a motor. A first mixing ring and a second mixing ring are provided on the rotating shaft. The first mixing ring and the second mixing ring are respectively provided with multiple S-shaped mixing plates. The first mixing ring and the second mixing ring are connected by an arc-shaped plate with a hollow structure, and the arc-shaped plate is provided with multiple mixing teeth.

[0010] As an improved technical solution, both the first and second fabric feeders include a hollow disc body, and a plurality of fabric blocks connected to the disc body are provided around the disc body. The disc body and the fabric blocks are respectively provided with a plurality of fabric holes.

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

[0012] The Kathon production mixing system includes a first dissolving tank and a second dissolving tank. The outlet of the first dissolving tank is connected to a first impurity removal device, and the outlet of the second dissolving tank is connected to a second impurity removal device. The outlet of the first impurity removal device is connected to a first buffer tank, and the outlet of the second impurity removal device is connected to the second buffer tank. The outlets of the first and second buffer tanks are respectively connected to a mixing tank, and the outlet of the mixing tank is connected to a product storage tank. In actual production, MIT and solvent are added to the first dissolving tank for dissolution, and CMI and solvent are added to the second dissolving tank for dissolution. After dissolution in the first dissolving tank, the MIT solution enters the first impurity removal device under the action of a transfer pump. The solution after dissolution in the second dissolving tank enters the second impurity removal device under the action of a transfer pump. The MIT solution after impurity removal by the first impurity removal device enters the first buffer tank for storage, and the CMI solution after impurity removal by the second impurity removal device enters the second buffer tank for storage. Then, the MIT solution and CMI solution enter the mixing tank according to a set flow rate, are uniformly mixed, and then stored in the product storage tank. The above-described mixing system is rationally designed, which improves the purity and stability of Kathon products, thereby ensuring the product's performance.

[0013] Both the first and second dissolving vessels include a vessel body. The top of the vessel body has a feed inlet and a solvent inlet, while the bottom has a discharge outlet. Inside the vessel body is a rotating shaft, one end of which is connected to a motor. A fixed base is mounted on the rotating shaft, and I-shaped stirring frames are located on both sides of the fixed base. Multiple stirring rods are mounted on the stirring frames, and multiple spiral blades are mounted on the rotating shaft below the fixed base. A perforated stirring plate is positioned between adjacent spiral blades. MIT and solvent enter the first dissolving vessel, while CMI and solvent enter the second dissolving vessel. The motors in both vessels are started, driving the rotating shaft, fixed base, stirring frames, stirring rods, spiral blades, and stirring plate to rotate. This achieves thorough mixing of the materials and solvent, ensuring that MIT and CMI dissolve separately in the solvent, significantly improving dissolution efficiency.

[0014] The first impurity removal device comprises a main body with an inlet at the top and an outlet at the bottom. Inside the main body is a diatomaceous earth adsorption layer, below which is a chitosan adsorption layer, and below that, a molecular sieve adsorption layer. After the MIT (Mixed Ultrafine Protein) solution enters the main body, it undergoes synergistic adsorption by the diatomaceous earth, chitosan, and molecular sieve layers, effectively removing insoluble substances, metal ions, and organic impurities, significantly improving the purity of the MIT solution.

[0015] The second impurity removal device includes a main body with an inlet at the top and an outlet at the bottom. Inside the main body is an activated carbon adsorption layer, below which is a silica gel adsorption layer, and below that, an ion exchange resin adsorption layer. After the CMI solution enters the main body, it undergoes synergistic adsorption by the activated carbon, silica gel, and ion exchange resin layers, effectively removing insoluble substances, metal ions, and organic impurities, significantly improving the purity of the CMI solution.

[0016] The mixing vessel includes a vessel body, with a first feed pipe and a second feed pipe respectively located on the top and upper side of the vessel body. The bottom of the vessel body has a discharge port. Inside the vessel body, above the first feed pipe, there is a first feeder connected to the first feed pipe. Below the first feeder, there is a second feeder connected to the second feed pipe. Below the second feeder, there is a rotating shaft. One end of the rotating shaft is connected to a motor. The rotating shaft has a first mixing ring and a second mixing ring. The first and second mixing rings each have multiple S-shaped mixing plates. The first and second mixing rings are connected by a hollowed-out arc-shaped plate with multiple mixing teeth. Under the action of the delivery pump, MIT liquid enters the interior of the first distributor through the first feed pipe, and CMI liquid enters the interior of the second distributor through the second feed pipe. After being evenly dispersed, they flow downwards under gravity. At the same time, the motor shaft, the first mixing ring, the second mixing ring, the S-shaped mixing plate, the arc-shaped connecting plate, and multiple mixing teeth rotate, achieving thorough stirring and mixing of the MIT and CMI liquids. The mixed liquid is then discharged from the outlet. The above-described mixing vessel design is reasonable and greatly improves efficiency.

[0017] Both the first and second distributors include hollow discs with multiple fabric blocks connected to them on the periphery. Each disc and fabric block has multiple fabric holes. MIT (Mixed Tolerant Mixed) and CMI (Chemical Oxygenated Mixed) liquids enter the discs of the first and second distributors respectively under the action of a pump. Then, a portion of the MIT and CMI liquids enters the fabric blocks, passing through the holes in the discs and fabric blocks, and are evenly dispersed. The first and second distributors described above are rationally designed, achieving uniform dispersion of the MIT and CMI liquids and facilitating thorough mixing of the two liquids, thereby ensuring the uniformity of the Kathon product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a mixing system for producing Kathon according to this utility model;

[0019] Among them, 1-first dissolving vessel, 10-fixed base, 11-stirring frame, 12-stirring rod, 13-spiral blade, 14-stirring plate, 2-second dissolving vessel, 3-first impurity removal device, 30-diatomaceous earth adsorption layer, 31-chitosan adsorption layer, 32-molecular sieve adsorption layer, 4-second impurity removal device, 40-activated carbon adsorption layer, 41-silica gel adsorption layer, 42-ion exchange resin adsorption layer, 5-first buffer vessel, 6-second buffer vessel, 7-mixing vessel, 70-first feed pipe, 71-second feed pipe, 72-first distributor, 73-second distributor, 74-rotating shaft, 75-motor, 76-first mixing ring, 77-second mixing ring, 78-mixing plate, 79-arc plate, 790-mixing teeth, 8-product storage tank. Detailed Implementation

[0020] 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.

[0021] A mixing system for Kathon production, such as Figure 1 As shown, the apparatus includes a first dissolving vessel 1 and a second dissolving vessel 2. The outlet of the first dissolving vessel 1 is connected to a first impurity removal device 3 (including a main body, with an inlet at the top and an outlet at the bottom; the interior of the main body has a diatomaceous earth adsorption layer 30, a chitosan adsorption layer 31 below the diatomaceous earth adsorption layer 30, and a molecular sieve adsorption layer 32 below the chitosan adsorption layer 31). The outlet of the second dissolving vessel 2 is connected to a second impurity removal device 4 (including a main body, with an inlet at the top and an outlet at the bottom). The body has an activated carbon adsorption layer 40 inside, a silica gel adsorption layer 41 below the activated carbon adsorption layer 40, and an ion exchange resin adsorption layer 42 below the silica gel adsorption layer 41 (the resin in the ion exchange resin layer is a strong acid cation exchange resin). The outlet of the first impurity removal device 3 is connected to the first buffer vessel 5, the outlet of the second impurity removal device 4 is connected to the second buffer vessel 6, the outlets of the first buffer vessel 5 and the second buffer vessel 6 are respectively connected to the mixing vessel 7, and the outlet of the mixing vessel 7 is connected to the product storage tank 8.

[0022] In actual production, MIT and solvent are added to the first dissolving vessel for dissolution, while CMI and solvent are added to the second dissolving vessel for dissolution. After dissolution in the first vessel, the MIT solution is pumped into the first impurity removal device. Through the synergistic adsorption of diatomaceous earth, chitosan, and molecular sieve layers, insoluble matter, metal ions, and organic impurities are effectively removed, significantly improving the purity of the MIT solution. Similarly, the solution from the second vessel is pumped into the second impurity removal device. Through the synergistic adsorption of activated carbon, silica gel, and ion exchange resin layers, insoluble matter, metal ions, and organic impurities are effectively removed, significantly improving the purity of the CMI solution. The MIT solution after impurity removal in the first device is stored in the first buffer vessel, and the CMI solution after impurity removal in the second device is stored in the second buffer vessel. Finally, the MIT and CMI solutions are fed into a mixing vessel at set flow rates. After uniform mixing, they are stored in a product storage tank. This mixing system is rationally designed and improves the purity and stability of Kathon products.

[0023] Both the first dissolving vessel 1 and the second dissolving vessel 2 include a vessel body. The top of the vessel body has a feed inlet and a solvent inlet, and the bottom has a discharge outlet. Inside the vessel body is a rotating shaft, one end of which is connected to a motor. A fixed base 10 is mounted on the rotating shaft. On both sides of the fixed base 10 are I-shaped stirring frames 11 (welded to the rotating shaft via connecting plates). Multiple stirring rods 12 are mounted on the stirring frames 11. Multiple spiral blades 13 are mounted on the rotating shaft below the fixed base 10. A hollowed-out stirring plate 14 is positioned between adjacent spiral blades 13. MIT and solvent enter the first dissolving vessel, while CMI and solvent enter the second dissolving vessel. The motors of the first and second dissolving vessels are started, driving the rotating shaft, fixed base, stirring frames, multiple stirring rods, spiral blades, and stirring plate to rotate, achieving thorough mixing of the materials and solvent, promoting the dissolution of MIT and CMI in the solvent, and greatly improving the dissolution efficiency.

[0024] The mixing vessel 7 includes a vessel body, with a first feed pipe 70 and a second feed pipe 71 respectively on the top and upper side of the vessel body, and a discharge port at the bottom of the vessel body. Inside the vessel body, a first distributor 72 is connected to the first feed pipe at the top, and a second distributor 73 is connected to the second feed pipe 71 below the first distributor 72. A rotating shaft 74 is located below the second distributor 73, with one end of the rotating shaft 74 connected to a motor 75. A first mixing ring 76 (welded to the rotating shaft via a connecting plate) and a second mixing ring 77 (welded to the rotating shaft via a connecting plate) are provided on the rotating shaft 74. Multiple S-shaped mixing plates 78 are provided on the first mixing ring 76 and the second mixing ring 77. The first mixing ring 76 and the second mixing ring 77 are connected by a hollow arc plate 79, which has multiple mixing teeth 790. Under the action of the delivery pump, MIT liquid enters the interior of the first distributor through the first feed pipe, and CMI liquid enters the interior of the second distributor through the second feed pipe. After being evenly dispersed, they flow downwards under the action of gravity. At the same time, the electric shaft of the motor, the first mixing ring, the second mixing ring, the S-shaped mixing plate, the arc connecting plate and multiple mixing teeth rotate to achieve full stirring and mixing of MIT liquid and CMI liquid. The mixed liquid is discharged from the outlet.

[0025] Both the first feeder 72 and the second feeder 73 include a hollow disc 720 (welded to the inner wall of the vessel via a fixing rod). Multiple feed blocks 721, connected to the disc 720, are arranged around its periphery. Both the disc 720 and the feed blocks 721 have multiple feed holes. MIT liquid and CMI liquid enter the discs of the first and second feeders respectively under the action of a delivery pump. Then, a portion of the MIT liquid and CMI liquid enters the feed blocks, passing through the holes in the discs and feed blocks, and is evenly dispersed.

[0026] 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. A mixing system for Kathon production, characterized in that, It includes a first dissolving vessel and a second dissolving vessel. The outlet of the first dissolving vessel is connected to a first impurity removal device, and the outlet of the second dissolving vessel is connected to a second impurity removal device. The outlet of the first impurity removal device is connected to a first buffer vessel, and the outlet of the second impurity removal device is connected to a second buffer vessel. The outlets of the first buffer vessel and the second buffer vessel are respectively connected to a mixing vessel, and the outlet of the mixing vessel is connected to a product storage tank.

2. The mixing system for Kathon production according to claim 1, characterized in that, Both the first and second dissolving vessels include a vessel body. The top of the vessel body is provided with a feed inlet and a solvent inlet, and the bottom of the vessel body is provided with a discharge outlet. The interior of the vessel body is provided with a rotating shaft. One end of the rotating shaft is connected to a motor. A fixed seat is provided on the rotating shaft. I-shaped stirring frames are provided on both sides of the fixed seat. Multiple stirring rods are provided on the stirring frames. Multiple spiral blades are provided on the rotating shaft below the fixed seat. A hollow stirring plate is provided between two adjacent spiral blades.

3. The mixing system for Kathon production according to claim 1, characterized in that, The first impurity removal device includes a body, with a feed inlet at the top and a discharge outlet at the bottom. The body has a diatomaceous earth adsorption layer inside, a chitosan adsorption layer below the diatomaceous earth adsorption layer, and a molecular sieve adsorption layer below the chitosan adsorption layer.

4. A mixing system for Kathon production according to claim 1, characterized in that, The second impurity removal device includes a body, with a feed inlet at the top and a discharge outlet at the bottom. An activated carbon adsorption layer is provided inside the body, a silica gel adsorption layer is provided below the activated carbon adsorption layer, and an ion exchange resin adsorption layer is provided below the silica gel adsorption layer.

5. A mixing system for Kathon production according to claim 1, characterized in that, The mixing vessel includes a vessel body, with a first feed pipe and a second feed pipe respectively located at the top and upper side of the vessel body, and a discharge port at the bottom of the vessel body. Inside the vessel body, a first feeder connected to the first feed pipe is located at the top, and a second feeder connected to the second feed pipe is located below the first feeder. Below the second feeder, a rotating shaft is located, with one end of the rotating shaft connected to a motor. The rotating shaft has a first mixing ring and a second mixing ring, each with multiple S-shaped mixing plates. The first and second mixing rings are connected by a hollowed-out arc-shaped plate with multiple mixing teeth.

6. A mixing system for Kathon production according to claim 5, characterized in that, Both the first and second fabric feeders include a hollow disc body, and a plurality of fabric blocks connected to the disc body are provided around the disc body. The disc body and the fabric blocks are respectively provided with a plurality of fabric holes.

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