Reaction kettle and flow guide pipe thereof for improving mixing uniformity of synthetic material liquid
Patent Information
- Application Number
- CN202522618540.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-12-10
AI Technical Summary
但是由于反应釜的高度较高，搅拌桨叶一般安装两层，最多三层，一般情况下也是安装在靠近罐体的中下部，这样就导致随着反应釜内溶液液面的不断升高，导致加入的沉淀剂短时间内混合均匀性逐渐变差，这就导致沉淀出来的物料均匀性差，有颗粒团聚
本实用新型的一种提高合成料液混合均匀性的反应釜及其导流管道，其可以通过将螺旋聚丙烯管道安装在搅拌浆叶外边缘与罐壁中心的位置，首先，由于此位置液体混合强度最高，所以沉淀剂从该位置流进反应釜能够以最快的速度混合均匀，能够解决生产反应釜内流体混合速度慢的问题，其次，该螺旋聚丙烯管道是螺旋向下的，而且其上开设的沉淀剂混合孔基本分布于每组搅拌桨的周围，较大且密集，不会有沉淀出来的物料堵塞开孔的担忧，最后在每组搅拌桨位置处的螺旋聚丙烯管道环绕一圈再螺旋向下，这样是利用搅拌桨附近的混合强度最强，该位置流出相对更多的沉淀剂，有利于整体混合均匀的快速实现，避免了沉淀出来的物料有大颗粒团聚。
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Figure CN224846083U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of chemical reaction vessels, specifically relating to a reaction vessel and its guide pipe for improving the uniformity of mixing of synthetic feed liquid. Background Technology
[0002] Polypropylene (PP) is a commonly used material for industrial plastic reactors, offering numerous performance advantages. PP is non-toxic, odorless, and a highly crystalline plastic, capable of storing various acids and alkalis. It possesses strong corrosion resistance and can withstand most organic and inorganic acids, alkalis, salts, and some organic solvents. Under pressureless conditions, PP reactors exhibit strong corrosion resistance, a wide operating temperature range (typically -10℃ to 120℃), and are lightweight, easy to install and operate, and inexpensive to manufacture, thus reducing production costs for enterprises. Furthermore, PP mixing tanks utilize a spiral extrusion winding seamless technology, increasing production efficiency by 5-8 times compared to manual methods. The products boast excellent integrity, are seamless, and exhibit strong corrosion and leakage resistance. The tank body can also be made thinner at the top and thicker at the bottom to reduce costs, and its size and shape are unrestricted.
[0003] Currently, traditional polypropylene reactors used in the market generally consist of a reactor body, a lid, a stirring motor, a speed controller, a stirring paddle, a reactor frame, and supporting steam heating pipes. Steam is directly introduced into the solution inside the reactor through the steam pipes to maintain a constant temperature for the materials inside, and also provides stirring. The materials react inside the reactor, and after the reaction is complete, the materials can be discharged from the outlet on the reactor wall, making operation extremely convenient. The type of stirring paddle and the reactor body baffles can be selected according to different production needs to meet the experimental requirements.
[0004] The existing equipment uses a straight-through feed pipe for the precipitant installed on the reactor body, leading directly to the bottom of the reactor and fixed near the pipe wall. High-speed rotation of the impeller of the agitator generates a tangential flow under centrifugal force, throwing the liquid towards the periphery of the vessel and causing it to rise along the edges, while the central liquid level naturally drops, thus achieving the mixing of the precipitant and rare earth solution. However, due to the considerable height of the reactor, the agitator blades are typically installed in two or at most three layers, usually in the lower middle part of the vessel. This results in the precipitant's mixing uniformity gradually deteriorating over a short period as the solution level rises, leading to poor uniformity of the precipitated material and particle agglomeration.
[0005] The conventional method is to increase the stirring speed or add more stirring blades, but both require a higher-power reducer to work in tandem. Due to space constraints, this is currently not feasible, and the solution is uneconomical and increases energy consumption. This patent mainly solves the problem that existing equipment cannot add stirring blades or replace with a higher-power reducer. The prepared spiral downward-facing perforated pipe can greatly improve the uniformity and speed of stirring and mixing. Moreover, it is simple to manufacture and install, and the polypropylene material generally does not react with the materials in the container. Utility Model Content
[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide a device that can greatly improve the uniformity and speed of stirring and mixing by providing a spiral downward opening pipe, and which is simple to manufacture and install.
[0007] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a flow guide pipe, including a spiral polypropylene pipe. The top of the spiral polypropylene pipe is fixedly connected to a precipitant inlet pipe via a flange. The top of the precipitant inlet pipe is fixedly connected to the outlet of a first control valve. The spiral polypropylene pipe extends spirally downward from the bottom of the precipitant inlet pipe and wraps around horizontally at multiple equidistant points. The spiral polypropylene pipe has multiple precipitant mixing holes on its surface facing the center, and the precipitant mixing holes are densely distributed at the equidistant horizontal wrapping points of the spiral polypropylene pipe.
[0008] This utility model also provides a reaction vessel for improving the uniformity of mixing of synthetic liquid, which includes a guide pipe and a vessel body. A vessel cover is fixedly installed on the top of the vessel body, and a stirring motor is fixedly installed on the top of the vessel cover. A stirring column is fixedly installed at the end of the output shaft of the stirring motor and extends into the interior of the vessel body. Multiple sets of stirring blades are fixedly installed on the surface of the stirring column, which are evenly distributed along its height direction. Each set of stirring blades is evenly distributed around the circumference of the stirring column, and stirring blades are fixedly installed at each end of a set of stirring blades at the bottom of the stirring column.
[0009] In some embodiments, the top of the vessel lid is fixedly installed to the bottom of the first control valve.
[0010] In some embodiments, the equidistant horizontal loops of the spiral polypropylene pipe are located at corresponding positions of each set of agitators.
[0011] In some embodiments, a feed pipe is fixedly installed on the top of the vessel lid, a water pump is fixedly installed on the top of the feed pipe, and the bottom of the feed pipe extends into the interior of the vessel body.
[0012] In some embodiments, a plurality of support feet are fixedly installed at the bottom of the vessel body for support.
[0013] In some embodiments, a discharge pipe is fixedly installed on one side of the bottom of the vessel, and a second control valve is fixedly installed at one end of the discharge pipe, while the other end extends into the interior of the vessel.
[0014] In some embodiments, a heating cylinder is fixedly installed on the side of the vessel body, and an electromagnetic coil is fixedly installed inside the heating cylinder.
[0015] In some embodiments, aluminum silicate cotton is fixedly installed on the inner wall of the heating cylinder near the surface of the vessel body.
[0016] In summary, the technical solutions conceived by this invention have the following beneficial effects compared with the prior art: This invention relates to a reactor and its guide pipe for improving the uniformity of mixing of synthetic feed liquid. It utilizes a spiral polypropylene pipe installed at the outer edge of the agitator blades and the center of the reactor wall. Firstly, because the liquid mixing intensity is highest at this location, the precipitant flowing into the reactor from this position can be mixed uniformly at the fastest speed, solving the problem of slow fluid mixing speed within the production reactor. Secondly, the spiral polypropylene pipe spirals downwards, and the precipitant mixing holes on it are mainly distributed around each set of agitator blades, being large and dense, eliminating concerns about precipitated material clogging the openings. Finally, the spiral polypropylene pipe at each set of agitator blades circles around again before spiraling downwards. This utilizes the strongest mixing intensity near the agitator blades, allowing relatively more precipitant to flow out from this location, facilitating rapid and uniform overall mixing and preventing large particle agglomeration of precipitated material.
[0017] This invention relates to a reaction vessel and its guide pipe for improving the uniformity of mixing of synthetic liquid. The vessel is equipped with a motor that drives the stirring column and the stirring paddle on it to rotate, thereby generating a stable mixing water flow. Stirring blades are installed at the ends of the stirring paddles at the bottom of the stirring column, which can stir the material at the bottom and push it upward, so that the liquids at the top and bottom are fully mixed, reducing the dead zones in the mixing and making the mixing more thorough.
[0018] This invention relates to a reaction vessel and its guide pipe for improving the uniformity of mixing of synthetic feed liquid. It directly heats the vessel by generating eddy currents inside the vessel through the activation of an electromagnetic coil, reaching the reaction temperature and ensuring more thorough mixing of the precipitant. This internal heating method offers rapid heating and high thermal efficiency. The aluminum silicate cotton installed between the coil and the reaction vessel body reduces heat transfer to the coil and helps control the heating distance, providing insulation and protection. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of a reaction vessel and its guide pipe for improving the mixing uniformity of synthetic feed liquid in an embodiment of this utility model; Figure 2This is a side view of a reaction vessel and its guide pipe for improving the mixing uniformity of synthetic feed liquid in an embodiment of this utility model; Figure 3 This is a cross-sectional view of a reaction vessel and its guide pipe for improving the mixing uniformity of synthetic feed liquid in an embodiment of this utility model; Figure 4 This is a schematic diagram of the internal structure of a reaction vessel and its guide pipe for improving the uniformity of mixing of synthetic liquid in an embodiment of this utility model.
[0020] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1 vessel body, 2 stirring motor, 3 precipitant feed pipe, 4 first control valve, 5 spiral polypropylene pipe, 6 precipitant mixing hole, 7 stirring column, 8 stirring paddle, 9 stirring blade, 10 feed pipe, 11 water pump, 12 discharge pipe, 13 second control valve, 14 heating cylinder, 15 electromagnetic coil, 16 aluminum silicate cotton, 17 support foot, 18 vessel cover. Detailed Implementation
[0021] 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 only used to explain this utility model and are not intended to limit this utility model.
[0022] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example
[0023] Please refer to Figure 1-4 A reaction vessel and its guide pipe for improving the uniformity of mixing of synthetic feed liquid include a spiral polypropylene pipe 5. A precipitant inlet pipe 3 is fixedly connected to the top of the spiral polypropylene pipe 5 by a flange. The outlet of a first control valve 4 is fixedly connected to the top of the precipitant inlet pipe 3. The spiral polypropylene pipe 5 extends spirally downward from the bottom of the precipitant inlet pipe 3 and wraps around horizontally at multiple equidistant points. Multiple precipitant mixing holes 6 are opened on the surface of the spiral polypropylene pipe 5 facing the center. The precipitant mixing holes 6 are densely distributed at the equidistant horizontal wrapping points of the spiral polypropylene pipe 5.
[0024] In this device, the spiral polypropylene pipe 5 spirals downwards, and the precipitant mixing holes 6 on it are basically distributed around each set of agitators 8. They are large and dense, so there is no concern that the precipitated material will block the holes. Finally, the spiral polypropylene pipe 5 at the position of each set of agitators 8 spirals downwards again. This takes advantage of the strongest mixing intensity near the agitator, and more precipitant flows out at this position, which is conducive to the rapid and uniform mixing of the whole and avoids the agglomeration of large particles of precipitated material.
[0025] This design ensures that, under the existing conditions of the production workshop's reactor, no large-scale modifications to the stirred tank are required, allowing the fluid inside the reactor to be fully mixed. The precipitant feed pipe 3 and the spiral polypropylene pipe 5 are fixedly connected by a flange, facilitating disassembly, maintenance, and replacement. Furthermore, the manufacturing process of the spiral polypropylene pipe 5 and the precipitant mixing hole 6 opened on the spiral polypropylene pipe 5 is simple, and the polypropylene material is stable, temperature resistant, and does not undergo chemical reactions. Example
[0026] A reaction vessel for improving the uniformity of mixing of synthetic feed liquid includes the flow guide pipe in Example 1, and also includes a vessel body 1. A vessel cover 18 is fixedly installed on the top of the vessel body 1. The top of the vessel cover 18 is fixedly installed with the bottom of the first control valve 4. A stirring motor 2 is fixedly installed on the top of the vessel cover 18. A stirring column 7 is fixedly installed at the end of the output shaft of the stirring motor 2 and extends into the interior of the vessel body 1. Multiple sets of stirring blades 8 are fixedly installed on the surface of the stirring column 7, which are evenly distributed along its height direction. The equidistant horizontal circumference of the spiral polypropylene pipe 5 is located at the corresponding position of each set of stirring blades 8. Each set of stirring blades 8 is evenly distributed around the circumference of the stirring column 7, and stirring blades 9 are fixedly installed at each end of a set of stirring blades 8 at the bottom of the stirring column 7.
[0027] This device uses a stirring motor 2 to drive the stirring column 7 and its impeller 8 to rotate, thereby generating a stable mixed water flow. At the bottom of the stirring column 7, the impeller 8 is equipped with stirring blades 9, which agitate the material at the bottom and push it upwards, ensuring thorough mixing of the liquids and reducing dead zones. The spiral polypropylene pipe 5 is installed at the outer edge of the impeller 8 and the center of the tank wall. Firstly, because the liquid mixing intensity is highest at this location, the precipitant flowing into the reactor from this position can be mixed evenly at the fastest speed, solving the problem of slow fluid mixing speed within the production reactor. In this embodiment, a feed pipe 10 is fixedly installed on the top of the vessel lid 18, a water pump 11 is fixedly installed on the top of the feed pipe 10, and the bottom of the feed pipe 10 extends into the interior of the vessel body 1. A plurality of support feet 17 for support are fixedly installed on the bottom of the vessel body 1. A discharge pipe 12 is fixedly installed on one side of the bottom of the vessel body 1. A second control valve 13 is fixedly installed on one end of the discharge pipe 12, and the other end extends into the interior of the vessel body 1.
[0028] This device can start the water pump 11 to add material into the vessel body 1 through the feed pipe 10, and then open the first control valve 4 to add a precipitant to the material. After the mixture has been fully mixed and reacted, the second control valve 13 is opened to discharge the mixed liquid from the vessel body 1 through the discharge pipe 12.
[0029] In this embodiment, a heating cylinder 14 is fixedly installed on the side of the vessel body 1, an electromagnetic coil 15 is fixedly installed inside the heating cylinder 14, and aluminum silicate cotton 16 is fixedly installed on the inner wall of the heating cylinder 14 near the surface of the vessel body 1.
[0030] This device generates direct heat by activating the electromagnetic coil 15 to induce eddy currents inside the reactor vessel, thus reaching the reaction temperature and ensuring more thorough mixing of the precipitant. This internal heating method offers rapid heating and high thermal efficiency. The aluminum silicate cotton 16, installed between the coil and the reactor vessel, reduces heat transfer to the coil and helps control the heating distance, providing insulation and protection.
[0031] In this example, a reaction vessel and its guide pipe for improving the uniformity of mixing of synthetic liquid are described. When using this device, the user starts the water pump 11 to pour the material into the vessel body 1 through the feed pipe 10, and then opens the first control valve 4 to add precipitant into the vessel body 1 through the precipitant feed pipe 3. At the same time, the stirring motor 2 and the electromagnetic coil 15 are started to stir and heat the material. Then, the precipitant is fully mixed and reacted with the material through the precipitant mixing holes 6 on the spirally distributed spiral polypropylene pipe 5. Finally, after the mixing is completed, the user can open the second control valve 13 to discharge the mixed liquid through the discharge pipe 12.
[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A flow guiding pipe, characterized in that: The system includes a spiral polypropylene pipe (5), the top of which is fixedly connected to a precipitant feed pipe (3) via a flange. The top of the precipitant feed pipe (3) is fixedly connected to the outlet of a first control valve (4). The spiral polypropylene pipe (5) extends spirally downward from the bottom of the precipitant feed pipe (3) and wraps around horizontally at multiple equidistant points. The spiral polypropylene pipe (5) has multiple precipitant mixing holes (6) on its surface facing the center. The precipitant mixing holes (6) are densely distributed at the equidistant horizontal wrapping points of the spiral polypropylene pipe (5).
2. A reaction vessel for improving the uniformity of mixing of synthetic feed liquid, comprising the flow guide pipe as described in claim 1, characterized in that, It also includes a vessel body (1), a vessel cover (18) is fixedly installed on the top of the vessel body (1), a stirring motor (2) is fixedly installed on the top of the vessel cover (18), a stirring column (7) is fixedly installed at the end of the output shaft of the stirring motor (2) and the stirring column (7) extends into the interior of the vessel body (1), and multiple sets of stirring blades (8) evenly distributed along its height direction are fixedly installed on the surface of the stirring column (7), each set of stirring blades (8) is evenly distributed around the circumference of the stirring column (7), and stirring blades (9) are fixedly installed at each end of a set of stirring blades (8) at the bottom of the stirring column (7).
3. The reaction vessel for improving the mixing uniformity of the synthesis solution according to claim 2, characterized in that: The top of the vessel lid (18) is fixedly installed to the bottom of the first control valve (4).
4. The reaction vessel for improving the mixing uniformity of the synthesis feed liquid according to claim 2, characterized in that: The equidistant horizontal loops of the spiral polypropylene pipe (5) are all located at the corresponding positions of each set of the stirring paddles (8).
5. A reaction vessel for improving the mixing uniformity of synthetic feed liquid according to claim 2, characterized in that: A feed pipe (10) is fixedly installed on the top of the lid (18), a water pump (11) is fixedly installed on the top of the feed pipe (10), and the bottom of the feed pipe (10) extends into the interior of the body (1).
6. The reaction vessel for improving the mixing uniformity of the synthesis feed liquid according to claim 2, characterized in that: The bottom of the vessel body (1) is fixedly equipped with multiple support feet (17) for support.
7. The reaction vessel for improving the mixing uniformity of the synthesis feed liquid according to claim 2, characterized in that: A discharge pipe (12) is fixedly installed on one side of the bottom of the vessel body (1). A second control valve (13) is fixedly installed at one end of the discharge pipe (12), and the other end extends into the interior of the vessel body (1).
8. The reaction vessel for improving the mixing uniformity of the synthesis solution according to claim 2, characterized in that: A heating cylinder (14) is fixedly installed on the side of the vessel body (1), and an electromagnetic coil (15) is fixedly installed inside the heating cylinder (14).
9. A reaction vessel for improving the mixing uniformity of synthetic feed liquid according to claim 8, characterized in that: Aluminum silicate cotton (16) is fixedly installed on the inner wall of the heating cylinder (14) near the surface of the vessel body (1).