An automatically mixed chemical reagent adding device
The automatic chemical reagent addition device utilizes a storage tank, a uniform mixing plate, a premixing mechanism, and a stirring mechanism to achieve rapid and uniform mixing of chemical reagents, thus solving the adverse effects caused by excessive stirring time and improving mixing efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBI AUTOMOTIVE ENG PROFESSIONAL COLLEGE
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, excessive stirring time during the mixing of chemical reagents can have adverse effects on the reagents, such as demulsification, shear force damage, structural damage, and decomposition of heat-sensitive components.
An automated chemical reagent addition device is used, including a storage tank, a uniform mixing plate, a premixing mechanism, a conical plate, and a stirring mechanism. Rapid and uniform mixing is achieved through uniform dropping of the uniform mixing plate, centrifugal dispersion by the conical plate, mixing in the material cylinder, and stirring by the stirring rod.
This significantly shortens the mixing time, avoids the problem of chemical reagents piling up and being difficult to mix, and improves the uniformity of mixing and product quality.
Smart Images
Figure CN224573593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polymer material production technology, specifically to an automatic mixing chemical reagent addition device. Background Technology
[0002] Polymer materials include many types such as plastics, rubber, fibers, films, adhesives, and coatings. In recent years, their applications have been increasing, especially plastics, rubber, and fibers. Due to their lightweight, abundant raw materials, convenient processing, and good performance, their development speed has surpassed that of the three traditional basic materials (steel, cement, and wood).
[0003] The aforementioned polymer materials all require the addition of chemical reagents during their production process. The current method involves directly pouring multiple chemical reagents into a mixing vessel and stirring. This method results in several chemical reagents being piled together, requiring prolonged stirring to achieve uniform mixing. However, prolonged stirring can have adverse effects on some chemical reagents: for example, it can easily cause demulsifiers or dispersants to form a protective layer on the particle surface, leading to latex particle collision and agglomeration (demulsification) or suspended particles agglomerating and settling; small particles, after being broken down by shear force, re-agglomerate into larger particles, resulting in decreased product stability, reduced gloss (coatings), and deteriorated mechanical properties; the emulsion may experience a sudden increase in viscosity due to particle aggregation (paste formation) or layering and viscosity reduction due to demulsification. Some thickeners (such as cellulose and polyacrylates) or rheology modifiers may undergo irreversible structural damage under prolonged high shear, losing their thickening effect and even forming insoluble gel particles. Powder additives (such as fillers and pigments), if dispersed and subjected to continued high shear, may re-aggregate due to the destruction of their surface coating, forming hard particles. Prolonged stirring generates frictional heat, which may cause heat-sensitive components such as antioxidants, light stabilizers, some initiators, or bioinhibitors to decompose and become ineffective. Therefore, a device is needed that allows for short stirring times while still ensuring uniform mixing of chemical reagents. Utility Model Content
[0004] The purpose of this invention is to provide an automatic mixing chemical reagent addition device to solve the technical problem in the prior art where excessive stirring time can have an adverse effect on chemical reagents.
[0005] To achieve the above objectives, the present invention provides an automatic mixing chemical reagent adding device, which adopts the following technical solution: An automatic mixing chemical reagent adding device includes a mixing vessel. The upper end of the mixing vessel is provided with two or more storage tanks, each storage tank having a discharge port at its lower end. A uniform material plate, which is a perforated plate, is provided below the storage tanks in the mixing vessel. A mixing mechanism and a stirring mechanism are provided below the uniform material plate in the mixing vessel. The mixing mechanism includes a material cylinder with an open upper end fixed to the inner wall of the mixing vessel. The lower end of the material cylinder has a cone-shaped body with its tip pointing downwards, and the tip of the cone-shaped body has a discharge port. The stirring mechanism includes a stirring shaft disposed in the mixing vessel, which passes upwards through the discharge port. A cone-shaped plate with its tip pointing upwards is disposed on the stirring shaft portion located in the material cylinder, so that chemical reagents falling onto the cone-shaped plate are thrown onto the inner wall of the material cylinder. Multiple stirring rods are disposed on the stirring shaft portion located below the material cylinder. A stirring shaft drive motor is provided at the bottom of the mixing vessel.
[0006] The material cylinder includes a straight cylinder that is fixedly connected to the inner wall of the mixing vessel, and a conical cylinder integrally formed and connected to the bottom of the straight cylinder.
[0007] A premixing mechanism is rotatably arranged between the storage tank and the uniform plate in the mixing vessel. The premixing mechanism includes a rotating shaft, on which at least one scraper is arranged circumferentially. A rotating shaft drive motor is arranged on the mixing vessel.
[0008] The number of scrapers is the same as the number of storage tanks, and any two scrapers, together with the uniform plate and the inner wall of the mixing vessel, form a chemical reagent cavity into which the chemical reagents in the corresponding storage tanks fall.
[0009] The mixing vessel has a stepped cylindrical structure, comprising a lower large-diameter section and an upper small-diameter section. The uniform material plate is located in the small-diameter section, while the conical cylinder, conical plate, and stirring shaft are all located in the large-diameter section.
[0010] Each of the aforementioned storage tanks is equipped with a discharge pipe at its outlet, and each discharge pipe is equipped with a flow meter. By controlling the flow rate of each flow meter, the discharge time of the chemical reagents in each storage tank is ensured to be the same.
[0011] The mixing vessel is equipped with a lid at the top, and a storage tank is placed on the lid.
[0012] The mixing vessel is equipped with a support leg at its lower end, and a discharge pipe is provided at the lowest position on the bottom wall or side wall of the mixing vessel.
[0013] The beneficial effects of this invention are as follows: Chemical reagents fall evenly downwards through the uniform distribution plate, and then the falling reagents undergo centrifugal dispersion mixing through the conical plate. The ejected reagents are thrown onto the inner wall of the cylinder and then slide down, where they are mixed again through the conical cylinder. The mixed reagents then fall from the discharge port into the mixing vessel, where they are further stirred by the stirring mechanism. This method avoids the problem of clumps of reagents being difficult to mix evenly, greatly shortening the mixing time. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of one embodiment of an automatic mixing chemical reagent adding device according to this utility model; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 yes Figure 1 Internal structure diagram; Figure 4 yes Figure 3 A magnified view of a section at point B in the middle. Detailed Implementation
[0015] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0016] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The use of "belonging" in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this invention.
[0017] An embodiment of the automatic mixing chemical reagent adding device of this utility model is as follows: Figures 1-4As shown, the apparatus includes a mixing vessel 1, with a lid 2 at the top. Three storage tanks 3 are mounted on the lid 2, each with a discharge port at its lower end. Each storage tank 3 has a cover 4 at its upper end, and each storage tank 3 has a discharge pipe 6 at its discharge port, with a flow meter 7 installed on each discharge pipe 6. The purpose of the flow meters is to control the flow rate of each flow meter to ensure that the chemical reagents in each storage tank are discharged at the same time. Since the weights of the chemical reagents to be added may differ, this apparatus prevents the lighter reagents from being discharged too early, leaving the heavier reagents to continue discharging independently, which would still result in piles of chemical reagents accumulating and hindering subsequent uniform mixing. The mixing vessel 1 has support legs 8 at its lower end, and a discharge pipe 9 is installed on the bottom wall of the mixing vessel.
[0018] A uniform plate 22, which is a perforated plate, is provided below the storage tank 3 in the mixing vessel 1. A premixing mechanism is rotatably arranged between the storage tank and the uniform plate in the mixing vessel. The premixing mechanism includes a rotating shaft 21, on which at least one scraper 23 is arranged circumferentially. In this embodiment, there are three scrapers, which are evenly spaced along the axial direction. A rotating shaft drive motor 10 is provided on the vessel lid 2 of the mixing vessel. The rotating shaft drive motor can drive the rotating shaft and the scrapers on it to rotate, thereby premixing the falling chemical reagents. In this embodiment, there are three storage tanks and three scrapers. Any two scrapers, together with the uniform plate and the inner wall of the mixing vessel, form a chemical reagent cavity into which the chemical reagents in the corresponding storage tanks fall.
[0019] A mixing mechanism and a stirring mechanism are arranged below the uniform material plate in the mixing vessel. The mixing mechanism includes a material cylinder 17 with an open upper end, fixed to the inner wall of the mixing vessel. The material cylinder 17 includes a straight cylindrical body 18 fixedly connected to the inner wall of the mixing vessel, and a conical cylindrical body 19 with its tip pointing downwards at the lower end of the straight cylindrical body 18. The straight cylindrical body and the conical cylindrical body are integrally formed. The tip of the conical cylindrical body 19 has a discharge port 20. The stirring mechanism includes a stirring shaft 14 disposed in the mixing vessel. The stirring shaft 14 passes upwards through the discharge port 20. A conical plate 16 with its tip pointing upwards is disposed on the stirring shaft portion located in the material cylinder. The conical plate 16 is located inside the material cylinder 17 so that chemical reagents falling onto the conical plate are thrown onto the inner wall of the material cylinder. Multiple stirring rods 15 are disposed on the stirring shaft portion located below the material cylinder. A stirring shaft drive motor 11 is provided at the bottom of the mixing vessel. In this embodiment, the mixing vessel 1 has a stepped cylindrical structure, comprising a lower large-diameter section 12 and an upper small-diameter section 13. The uniform material plate 22 is disposed in the small-diameter section 13, while the conical cylinder 19, the conical plate 16, and the stirring shaft 14 are all disposed in the large-diameter section 12. The advantage of this arrangement is that it ensures that all chemical reagents falling from the uniform material plate can land on the conical plate and then be thrown into the mixing vessel.
[0020] In use, various required chemical reagents are poured into their respective storage tanks. By controlling the flow meters, the chemical reagents in each storage tank are discharged and terminated simultaneously, meaning the discharge time of each chemical reagent is the same. A rotating shaft drives a motor to rotate a scraper to premix the chemical reagents. The premixed chemical reagents fall from a uniform plate and then onto a conical plate. Through the centrifugal force of the rotating conical plate, the chemical reagents are thrown into a material cylinder, where they are further collected and mixed by the conical cylinder at the bottom. Finally, they enter a mixing vessel where a stirring shaft and stirring rod stir and mix the chemical reagents.
[0021] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.
[0023] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.
[0024] In other embodiments of this utility model, the discharge pipe can also be set at the lowest position on the side wall of the mixing vessel; the number of scrapers can be adjusted according to actual needs; on the basis of ensuring that all the chemical reagents on the uniform plate can fall on the conical plate, the mixing vessel can also be a straight cylinder structure instead of a stepped cylinder structure; the material cylinder can also be a conical structure, and can be without the upper straight cylinder but only include the conical cylinder, in which case the upper end of the conical cylinder is fixedly connected to the inner wall of the mixing vessel.
Claims
1. An automatic chemical reagent adding device, comprising a mixing vessel, wherein the upper end of the mixing vessel is provided with two or more storage tanks, and the lower end of each storage tank is provided with a discharge port, characterized in that: A material leveling plate is provided below the storage tank in the mixing vessel. The material leveling plate is a perforated plate. A mixing mechanism and a stirring mechanism are arranged below the uniform material plate in the mixing vessel. The mixing mechanism includes a material cylinder with an open upper end fixed to the inner wall of the mixing vessel. The lower end of the material cylinder is provided with a cone-shaped body with its tip pointing downwards. The tip of the cone-shaped body has a discharge port. The stirring mechanism includes a stirring shaft arranged in the mixing vessel. The stirring shaft passes upwards through the discharge port. A cone-shaped plate with its tip pointing upwards is arranged on the stirring shaft part located in the material cylinder. The cone-shaped plate is located inside the material cylinder so that the chemical reagents falling on the cone-shaped plate are thrown onto the inner wall of the material cylinder. Multiple stirring rods are arranged on the stirring shaft part located below the material cylinder. A stirring shaft drive motor is provided at the bottom of the mixing vessel.
2. The automatically mixed chemical reagent addition apparatus according to claim 1, characterized by: The material cylinder includes a straight cylinder that is fixedly connected to the inner wall of the mixing vessel, and a conical cylinder integrally formed and connected to the bottom of the straight cylinder.
3. The automatically mixed chemical reagent addition apparatus according to claim 1, characterized by: A premixing mechanism is rotatably arranged between the storage tank and the uniform plate in the mixing vessel. The premixing mechanism includes a rotating shaft, on which at least one scraper is arranged circumferentially. A rotating shaft drive motor is arranged on the mixing vessel.
4. The automatically mixed chemical reagent addition apparatus according to claim 3, characterized by: The number of scrapers is the same as the number of storage tanks, and any two scrapers, together with the uniform plate and the inner wall of the mixing vessel, form a chemical reagent cavity into which the chemical reagents in the corresponding storage tanks fall.
5. The automatically mixed chemical reagent addition apparatus according to claim 1, characterized by: The mixing vessel has a stepped cylindrical structure, comprising a lower large-diameter section and an upper small-diameter section. The uniform material plate is located in the small-diameter section, while the conical cylinder, conical plate, and stirring shaft are all located in the large-diameter section.
6. The automatically mixed chemical reagent addition apparatus according to any one of claims 1 to 5, characterized by: Each of the aforementioned storage tanks is equipped with a discharge pipe at its outlet, and each discharge pipe is equipped with a flow meter. By controlling the flow rate of each flow meter, the discharge time of the chemical reagents in each storage tank is ensured to be the same.
7. The automatic mixing chemical reagent adding device according to claim 1, characterized in that: The mixing vessel is equipped with a lid at the top, and a storage tank is placed on the lid.
8. The automatic mixing chemical reagent adding device according to claim 1, characterized in that: The mixing vessel is equipped with a support leg at its lower end, and a discharge pipe is provided at the lowest position on the bottom wall or side wall of the mixing vessel.