A stirring device for producing microcapsule suspensions

Abstract

The utility model discloses a kind of microcapsule suspending agent production stirring devices, and it relates to microcapsule suspending agent production technical field.A kind of microcapsule suspending agent production stirring device, comprising: tank, hollow rotating shaft, stirrer, anchor type stirring component and hollow shaft motor;Tank includes the cylindrical tank body and conical tank body connected up and down;The top cover of cylindrical tank body is provided with feed inlet, and conical tank body bottom is provided with discharge pipe;Hollow rotating shaft is rotatably connected on the top cover of cylindrical tank body;Stirrer is arranged in tank;Stirrer includes solid stirring shaft and multiple interval fixed on solid stirring shaft on stirring blade.The utility model is through overall structural design, realized multilayer stirring collaborative operation, eliminate mixed blind area to guarantee microcapsule uniformity, reduce material residue simultaneously with the cooperation of scraper and tank form, realize efficient cleaning in combination with clean structure design, comprehensively improve mixing effect, reduce residue and simplify cleaning process, meet the demand of large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of microcapsule suspension production technology, specifically to a stirring device for microcapsule suspension production. Background Technology

[0002] In the field of microencapsulated suspension production, the core process involves using the active pesticide ingredient as the core, encapsulating it in microcapsules with a core-shell structure formed from natural or synthetic polymers, ultimately creating a formulation that is stably suspended in water. This process demands extremely high levels of uniformity in material mixing, precision in dispersion, and ease of use and cleanliness of the production equipment. Existing microencapsulated suspension production mixing devices have significant technical shortcomings, specifically as follows:

[0003] First, some production mixing devices have simple structural designs and often use a single stirring component, which makes it difficult to achieve efficient mixing of the capsule core, capsule wall material and aqueous medium, which can easily lead to local material aggregation and affect the uniformity of microcapsule formation.

[0004] Secondly, some production mixing devices have a limited mixing range, and materials are easily left on the inner wall and bottom corners of the tank. This not only reduces mixing efficiency, but may also affect the quality of subsequent batches of products due to the deterioration of the residual materials.

[0005] Third, cleaning is difficult. The internal structure of the device is complex and lacks a targeted cleaning design. Manual cleaning is time-consuming and labor-intensive, and it is difficult to completely remove residual materials in the gaps. Long-term use can easily lead to cross-contamination, which seriously restricts production efficiency and product quality stability.

[0006] Therefore, there is an urgent need for a specialized mixing device that can achieve efficient mixing, cover the entire area of ​​agitation, and is easy to clean, in order to meet the needs of large-scale production of microcapsule suspensions.

[0007] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0008] To address the aforementioned technical problems, this utility model provides a stirring device for producing microcapsule suspensions, thereby solving the problems mentioned in the background section.

[0009] This utility model provides the following technical solution: a stirring device for producing microcapsule suspensions, comprising: a tank, a hollow rotating shaft, a stirrer, an anchor-type stirring assembly, and a hollow shaft motor;

[0010] The tank body includes a cylindrical tank and a conical tank connected vertically; the top cover of the cylindrical tank is provided with a feed inlet, and the bottom of the conical tank is provided with a discharge pipe;

[0011] A hollow rotating shaft is rotatably connected to the top cover of a cylindrical tank; an agitator is installed inside the tank; the agitator includes a solid stirring shaft and multiple stirring blades fixed at intervals on the solid stirring shaft; the upper end of the solid stirring shaft is fixedly connected to the hollow rotating shaft.

[0012] An anchor-type stirring assembly is installed in the tank; the anchor-type stirring assembly includes a horizontal stirring rod fixed to the lower end of the hollow rotating shaft, a vertical stirring rod fixed to the end of the horizontal stirring rod, and an inclined stirring rod fixed to the end of the vertical stirring rod; wherein, the ends of the two inclined stirring rods on both sides are fixedly connected.

[0013] The horizontal stirring rod, vertical stirring rod, and inclined stirring rod are all hollow rods; the horizontal stirring rod, vertical stirring rod, and inclined stirring rod are connected in sequence, and the hollow rotating shaft is connected to the two horizontal stirring rods on both sides; the vertical stirring rod and the inclined stirring rod are each provided with several spray holes at intervals on the side facing the inner wall of the tank;

[0014] A bracket is fixed on the top cover of the cylindrical tank, and the hollow shaft motor is fixed on the bracket. The hollow shaft motor is connected to the hollow rotating shaft for drive.

[0015] Preferably, it also includes a scraper assembly disposed in the tank; the scraper assembly includes a vertical scraper and an inclined scraper respectively fixed on the vertical stirring rod and the inclined stirring rod;

[0016] The vertical scraper is fixed on the side of the vertical stirring rod facing the inner wall of the tank; the oblique scraper is fixed on the side of the vertical stirring rod facing the inner wall of the tank; the edges of both the vertical and oblique scrapers maintain a certain distance from the spray hole.

[0017] Preferably, the scraper assembly further includes an outlet scraper; the outlet scraper is fixed at the position where the ends of the two inclined stirring rods are fixedly connected.

[0018] Preferably, it also includes anchor-shaped stirring blades; the two ends of the anchor-shaped stirring blades are fixedly connected to two vertical stirring rods on both sides.

[0019] The microcapsule suspension production stirring device provided in this embodiment of the utility model has the following beneficial effects: Through the overall structural design, this utility model realizes multi-layer stirring and collaborative operation, eliminates mixing blind spots to ensure the uniformity of microcapsules, and at the same time reduces material residue by using the scraper and tank shape to reduce material residue. Combined with the cleaning structure design, it achieves efficient cleaning, comprehensively improves the mixing effect, reduces residue and simplifies the cleaning process, and meets the needs of large-scale production. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the first angular direction of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the second angular direction of this utility model;

[0022] Figure 3 This is a structural schematic diagram of the first angular direction after cross-section of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the second angular direction after cross-section of the present invention;

[0024] Figure 5 This utility model Figure 3 A magnified view of part A in the image. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figures 1-5 To address the problems mentioned in the background section, this utility model provides a stirring device for producing microcapsule suspensions, which solves the aforementioned technical problems. The technical solution is as follows:

[0027] A stirring device for producing microcapsule suspensions includes: a tank 110, a hollow rotating shaft 141, a stirrer, an anchor-type stirring assembly, and a hollow shaft motor 123;

[0028] The tank body 110 includes a cylindrical tank body 111 and a conical tank body 112 connected vertically; the top cover of the cylindrical tank body 111 is provided with a feed inlet 113, and the bottom of the conical tank body 112 is provided with a discharge pipe 130.

[0029] The hollow rotating shaft 141 is vertically rotatably connected to the top cover of the cylindrical tank 111; the agitator is installed in the tank 110; the agitator includes a solid stirring shaft 151 and a plurality of stirring blades 152 fixed at intervals on the solid stirring shaft 151; the upper end of the solid stirring shaft 151 is fixedly connected to the hollow rotating shaft 141.

[0030] An anchor-type stirring assembly is installed in the tank 110; the anchor-type stirring assembly includes a horizontal stirring rod 142 fixed to the lower end of the hollow rotating shaft 141, a vertical stirring rod 143 fixed to the end of the horizontal stirring rod 142, and an inclined stirring rod 144 fixed to the end of the vertical stirring rod 143; wherein, the ends of the two inclined stirring rods 144 on both sides are fixedly connected.

[0031] The horizontal stirring rod 142, the vertical stirring rod 143, and the inclined stirring rod 144 are all hollow rods; the horizontal stirring rod 142, the vertical stirring rod 143, and the inclined stirring rod 144 are connected in sequence, and the hollow rotating shaft 141 is connected to the two horizontal stirring rods 142 on both sides; the vertical stirring rod 143 and the inclined stirring rod 144 are each provided with several spray holes at intervals on the side facing the inner wall of the tank 110;

[0032] A bracket 121 is fixed on the top cover of the cylindrical tank 111. A hollow shaft motor 123 is fixed on the bracket 121 and is driven by a hollow rotating shaft 141.

[0033] In this embodiment, a scraper assembly is also provided in the tank 110; the scraper assembly includes a vertical scraper 161 and an oblique scraper 162 respectively fixed on the vertical stirring rod 143 and the oblique stirring rod 144;

[0034] The vertical scraper 161 is fixed on the side of the vertical stirring rod 143 facing the inner wall of the tank 110; the oblique scraper 162 is fixed on the side of the vertical stirring rod 143 facing the inner wall of the tank 110; wherein the edges of the vertical scraper 161 and the oblique scraper 162 maintain a certain distance from the spray hole.

[0035] The vertical scraper 161 fits against the inner wall of the cylindrical tank, and the oblique scraper 162 fits against the inner wall of the conical tank. When the anchor-type stirring component rotates, it scrapes off the material attached to the tank wall, preventing material from sticking to the wall and ensuring product quality stability, and also facilitating subsequent cleaning. The design of the distance between the edges of the vertical scraper 161 and the oblique scraper 162 and the nozzle avoids interference with the nozzle function.

[0036] In this embodiment, the scraper assembly further includes an outlet scraper 163; the outlet scraper 163 is fixed at the position where the ends of the two inclined stirring rods 144 are fixedly connected. The outlet scraper 163 is fixed at the connection position of the ends of the inclined stirring rods to scrape material from areas such as the bottom of the conical tank where material is prone to residue, assisting the material to concentrate in the discharge pipe and reducing material residue.

[0037] In this embodiment, an anchor-shaped stirring blade 170 is also included; the two ends of the anchor-shaped stirring blade 170 are fixedly connected to two vertical stirring rods 143 on both sides. The anchor-shaped stirring blade 170 is connected to the vertical stirring rods 143 at both ends, which further enhances the vertical and horizontal material disturbance, improves the mixing intensity, and optimizes the uniformity of material dispersion, especially significantly assisting in the mixing of materials in the vertical area.

[0038] The method of using the microcapsule suspension production stirring device provided in this embodiment of the invention is as follows:

[0039] (a) Production Mixing Stage

[0040] (1) Microcapsule suspension production materials, including pesticide capsule cores, polymer capsule wall materials, aqueous medium, etc., are fed into the tank 110 through the feed inlet 113.

[0041] (2) Start the hollow shaft motor 123. The motor drives the hollow rotating shaft 141 to rotate, which in turn drives the agitator (solid agitator shaft 151, agitator blade 152), the anchor agitator assembly (horizontal agitator rod 142, vertical agitator rod 143, oblique agitator rod 144), and the anchor agitator blade 170 to rotate synchronously.

[0042] (3) The stirring blades 152 of the agitator stir and shear the material in the central area of ​​the tank, and initially disperse and mix it; the horizontal, vertical and oblique stirring rods of the anchor-type stirring assembly rotate against the inner wall and bottom of the tank, driving the material at the edge and corner to flow and form convection with the central material, eliminating the stirring blind zone; the anchor-shaped stirring blades 170 strengthen vertical mixing and further improve the uniformity of the material.

[0043] (4) After mixing, the discharge pipe 130 is opened. Under its own gravity and the push of the stirring components, the material is discharged from the conical tank 112 into the discharge pipe 130 and enters the next production stage. The outlet scraper 163 assists in scraping the material, improving the discharge efficiency and reducing residue.

[0044] (II) Cleaning Phase

[0045] (1) Close the discharge pipe 130 (or briefly open the control discharge), and pass the cleaning liquid into the hollow rod of the anchor-type stirring assembly through the hollow rotating shaft 141. The cleaning liquid is sprayed from the spray hole onto the inner wall of the tank through the connecting channels of the horizontal, vertical and oblique stirring rods.

[0046] (2) Start the hollow shaft motor 123 (running at low speed) to drive the anchor-type stirring assembly and scraper assembly to rotate; the spray nozzle sprays out cleaning liquid to flush the tank wall, and the vertical scraper 161 and the oblique scraper 162 scrape the tank wall simultaneously to scrape off the adhering materials and impurities, which flow with the cleaning liquid; the outlet scraper 163 scrapes the bottom of the conical tank to clean the residue at the discharge port.

[0047] (3) Open the discharge pipe 130, and the cleaning waste liquid is discharged through the discharge pipe to complete the internal cleaning of the device and prepare for the next production batch.

[0048] It should be noted that, in order for the cleaning fluid to flow smoothly into the hollow shaft and the connected hollow rod, a rotary joint needs to be connected to the upper opening of the hollow shaft. This ensures both the sealing of the hollow shaft during rotation and a stable delivery of the cleaning fluid, guaranteeing the normal operation of the cleaning process.

[0049] The microcapsule suspension production stirring device provided in this embodiment of the utility model has the following beneficial effects: Through the overall structural design, this utility model realizes multi-layer stirring and collaborative operation, eliminates mixing blind spots to ensure the uniformity of microcapsules, and at the same time reduces material residue by using the scraper and tank shape to reduce material residue. Combined with the cleaning structure design, it achieves efficient cleaning, comprehensively improves the mixing effect, reduces residue and simplifies the cleaning process, and meets the needs of large-scale production.

[0050] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A stirring device for producing microcapsule suspensions, characterized in that, include: Tank body, hollow rotating shaft, agitator, anchor-type agitator assembly, and hollow shaft motor; The tank body includes a cylindrical tank and a conical tank connected vertically; the top cover of the cylindrical tank is provided with a feed inlet, and the bottom of the conical tank is provided with a discharge pipe; A hollow rotating shaft is rotatably connected to the top cover of a cylindrical tank; an agitator is installed inside the tank; the agitator includes a solid stirring shaft and multiple stirring blades fixed at intervals on the solid stirring shaft; the upper end of the solid stirring shaft is fixedly connected to the hollow rotating shaft. An anchor-type stirring assembly is installed in the tank; the anchor-type stirring assembly includes a horizontal stirring rod fixed to the lower end of the hollow rotating shaft, a vertical stirring rod fixed to the end of the horizontal stirring rod, and an inclined stirring rod fixed to the end of the vertical stirring rod; wherein, the ends of the two inclined stirring rods on both sides are fixedly connected. The horizontal stirring rod, vertical stirring rod, and inclined stirring rod are all hollow rods; the horizontal stirring rod, vertical stirring rod, and inclined stirring rod are connected in sequence, and the hollow rotating shaft is connected to the two horizontal stirring rods on both sides; the vertical stirring rod and the inclined stirring rod are each provided with several spray holes at intervals on the side facing the inner wall of the tank; A bracket is fixed on the top cover of the cylindrical tank, and the hollow shaft motor is fixed on the bracket. The hollow shaft motor is connected to the hollow rotating shaft for drive.

2. The microcapsule suspension production stirring device according to claim 1, characterized in that, It also includes a scraper assembly disposed in the tank; the scraper assembly includes a vertical scraper and an inclined scraper respectively fixed on a vertical stirring rod and an inclined stirring rod; The vertical scraper is fixed on the side of the vertical stirring rod facing the inner wall of the tank; the oblique scraper is fixed on the side of the vertical stirring rod facing the inner wall of the tank; the edges of both the vertical and oblique scrapers maintain a certain distance from the spray hole.

3. The microcapsule suspension production stirring device according to claim 2, characterized in that, The scraper assembly also includes an outlet scraper; the outlet scraper is fixed at the position where the ends of the two inclined stirring rods are fixedly connected.

4. The microcapsule suspension production stirring device according to claim 1, characterized in that, It also includes anchor-shaped stirring blades; the two ends of the anchor-shaped stirring blades are fixedly connected to two vertical stirring rods on both sides.

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