A modifier adding device

Abstract

The utility model discloses a modifier adds device and belongs to resin processing technical field, and reaction equipment includes first top, and the first top is provided with the blanking hole of through on opening, and positioning frame detachably installs on the first top, and adding equipment includes the collection jar, and the collection jar movable mounting is in the positioning frame, and the one side of collection jar towards the first top is provided with the blanking pipe, and the inner wall of positioning frame is provided with a plurality of chutes that interval open, and with a plurality of chute corresponding set up limit slot, in corresponding chute and limit slot, limit slot and chute intercommunication, and the radial outer wall of collection jar is provided with a plurality of sliding blocks, when sliding block enters limit slot along chute, and blanking pipe inserts into blanking hole, the utility model discloses through the design of sliding block and limit slot can when installing, to collection jar quick positioning, and make blanking pipe synchronous insertion into blanking hole, and directly add to the inside of reaction equipment. Each component detachable connection, can be convenient for subsequent overhaul and maintenance replacement.

Description

Technical Field

[0001] This utility model relates to the field of resin processing technology, specifically a modifier addition device. Background Technology

[0002] Polyamide epichlorohydrin (PAE) resin is a water-soluble, cationic thermosetting resin formed by the condensation polymerization of dicarboxylic acids and polyamines, followed by crosslinking with epichlorohydrin. As a wet strength agent in papermaking, PAE forms an irreversible network between fibers through chemical crosslinking, allowing paper to maintain high strength even when wet. Modifiers are key auxiliary substances that optimize the performance of polyamide epichlorohydrin resin through chemical grafting, physical mixing, or copolymerization. Based on their interaction with PAE, modifiers are mainly divided into reactive and non-reactive types. Reactive modifiers react chemically with the PAE molecular chains through functional groups, forming stable chemical bonds and altering the PAE structure at the molecular level. Non-reactive modifiers do not react chemically with PAE; they improve its macroscopic properties only through physical dispersion and encapsulation, resulting in simpler processes and lower costs.

[0003] Patent application CN221601899U discloses an automatic modifier addition device for asphalt mixing plants, comprising a supporting chassis, a mixing plant body, a support frame, a modifier quantitative addition component, and a dust removal and cleaning component. The mixing plant body is connected to the upper end of the supporting chassis, the support frame is connected between the mixing plant body and the supporting chassis, the modifier quantitative addition component is connected to one side of the mixing plant body, and the dust removal and cleaning component is connected to the upper end of the mixing plant body. This invention, through the use of the modifier quantitative addition component, allows for the quantitative addition of modifier, facilitating control of the modifier dosage and thus achieving automatic addition. The dust removal and cleaning component facilitates the cleaning of the filter screen, preventing filter clogging and ensuring efficient dust removal.

[0004] However, the above-disclosed automatic modifier adding devices have limited freedom of movement, cannot be quickly disassembled, are not suitable for some modifiers with high viscosity, and lack a heating structure. Utility Model Content

[0005] The purpose of this invention is to provide a modifier addition device that addresses the problems of existing automatic modifier addition devices having limited freedom of movement, inability to be quickly disassembled, unsuitability for some high-viscosity modifiers, and lack of a heating structure.

[0006] To achieve the above objectives, the technical solution of this utility model is: a modifier addition device, including a reaction device, including a first top cover, the first top cover having a through discharge hole; a positioning frame, detachably mounted on the first top cover, and including a positioning frame located above the first top cover; and an addition device, including a storage tank, the storage tank being movably mounted within the positioning frame;

[0007] The storage tank has a discharge pipe on the side facing the first top cover; the inner wall of the positioning frame is provided with multiple sliding grooves spaced apart, and a limiting groove is provided corresponding to the multiple sliding grooves; the limiting groove is connected to the sliding groove in the corresponding sliding groove and the limiting groove; multiple sliders are provided on the radial outer wall of the storage tank; when the slider enters the limiting groove along the sliding groove, the discharge pipe is inserted into the discharge hole.

[0008] As a further improvement of this utility model: a mounting base is provided on the first top cover, and the positioning frame is detachably mounted on the mounting base by bolts.

[0009] As a further improvement of this utility model, a plurality of rubber rings are installed on the inner wall of the feeding hole.

[0010] As a further embodiment of this utility model: the adding device also includes a second top cover, which is threadedly installed on the side of the storage tank opposite to the first top cover; the second top cover is provided with at least one handle.

[0011] As a further improvement of this utility model: a motor is installed on the second top cover, and the output end of the motor is provided with a stirring fan located inside the storage tank.

[0012] As a further improvement of this utility model: a heating cavity is provided on the inner wall of the storage tank, and a heating wire is provided in the heating cavity.

[0013] As a further improvement of this utility model: a control valve is installed on the feed pipe, and a sensor is installed on the inner wall of the second top cover.

[0014] As a further improvement of this invention, it also includes a control panel.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention utilizes a slider and limiting groove design to quickly position the storage tank during installation and simultaneously insert the discharge pipe into the discharge hole, directly adding it into the reaction equipment. All components are detachable, facilitating subsequent inspection, maintenance, and replacement. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the first top cover in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the positioning frame in this utility model;

[0021] Figure 4 This is a cross-sectional view of the device added in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Reaction equipment; 101. First top cover; 102. Mounting base; 103. Discharge hole; 104. Rubber ring;

[0024] 2. Positioning bracket; 201. Positioning frame; 202. Bolt; 203. Slide groove; 204. Limiting groove;

[0025] 3. Addition equipment; 301. Storage tank; 302. Second top cover; 303. Feed pipe; 304. Control valve; 305. Sliding block; 306. Heating chamber; 307. Heating wire; 308. Motor; 309. Agitator; 310. Sensor; 311. Handle. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] This invention provides an improved modifier addition device, such as... Figures 1-4 As shown, the device includes a reaction apparatus 1, which includes a first top cover 101 with a through discharge hole 103; a positioning frame 2, which is detachably mounted on the first top cover 101 and includes a positioning frame 201 located above the first top cover 101; and an addition device 3, which includes a storage tank 301, which is movably mounted inside the positioning frame 201.

[0031] The storage tank 301 has a discharge pipe 303 on the side facing the first top cover 101; the inner wall of the positioning frame 201 is provided with multiple sliding grooves 203 spaced apart, and a limiting groove 204 is provided corresponding to the multiple sliding grooves 203; the limiting groove 204 is connected to the sliding groove 203 in the corresponding sliding groove 203 and the limiting groove 204; multiple sliders 305 are provided on the radial outer wall of the storage tank 301; when the slider 305 enters the limiting groove 204 along the sliding groove 203, the discharge pipe 303 is inserted into the discharge hole 103.

[0032] In this invention, the modifier is efficiently added to the reaction system through the coordinated operation of the reaction device 1, the positioning frame 2, and the addition device 3.

[0033] The reaction apparatus 1 is used to hold the reaction system and provides an inlet for adding the modifier. The discharge port 103 is the only channel for the modifier to enter the reaction apparatus 1. The diameter of the port must match the discharge pipe 303 of the addition device, and its position must be coaxial with the positioning frame 201 of the positioning frame 2. The positioning frame 201 serves as the mounting track for the storage tank 301, and uses geometric constraints to limit the radial offset of the storage tank 301, ensuring that the discharge pipe 303 is always aligned with the central axis of the discharge port 103.

[0034] The chute 203 extends vertically along the inner wall of the positioning frame 201, providing precise guidance for the descent of the storage tank 301. Its width matches that of the slider 305 to prevent swaying. The limiting groove 204 is connected to the bottom of the chute 203. When the slider 305 slides in, the storage tank 301 is stably fixed through axial limiting and circumferential locking.

[0035] Under the influence of gravity or a slight external force, the storage tank 301 falls vertically along the chute 203, and the discharge pipe 303 gradually approaches and initially inserts into the discharge hole 103. When the slider 305 reaches the bottom of the chute 203, the storage tank 301 is rotated to make the slider 305 slide into the limiting groove 204. At this time, the discharge pipe 303 is fully inserted into the discharge hole 103, completing the sealing connection.

[0036] See appendix Figure 2 - Appendix Figure 3 The first top cover 101 is provided with a mounting base 102, and the positioning frame 201 is detachably mounted on the mounting base 102 by bolts 202.

[0037] In this embodiment: the mounting base 102 serves as a transitional connection structure between the first top cover 101 and the positioning frame 201. It is mostly a ring-shaped or rectangular protrusion structure, made of the same material as the first top cover 101. It is fixed to the first top cover 101 by welding or integral molding process, which enhances the local structural strength, avoids stress concentration caused by the positioning frame 201 being directly connected to the top cover, and prevents the top cover from deforming.

[0038] The mounting base 102 has positioning pin holes machined on its surface, which cooperate with the corresponding structure at the bottom of the positioning frame 2 to achieve pre-positioning.

[0039] If the positioning frame 201 experiences wear on the groove due to long-term use, the positioning frame 201 can be replaced separately without replacing the entire first top cover 102, thus significantly reducing equipment maintenance costs.

[0040] See appendix Figure 2 Multiple rubber rings 104 are installed on the inner wall of the feeding hole 103.

[0041] In this embodiment, the multiple rubber rings 104 on the inner wall of the discharge hole 103 are the core of the sealing system. When the discharge tube 303 is inserted into the discharge hole 103, the rubber rings 104 are squeezed by the outer wall of the discharge tube 303 and undergo elastic deformation, filling the gap between them and forming a radial seal. The multiple rubber rings 104 form multiple sealing barriers. Even if one rubber ring 104 fails due to wear or local deformation, the remaining rubber rings 104 can still maintain the sealing effect, significantly reducing the risk of modifier leakage.

[0042] The 104 rubber ring material must be compatible with the properties of the modifier. If the modifier is acidic, acid-resistant nitrile rubber can be used; if it is organic solvent-based, fluororubber is required. Furthermore, the hardness of the rubber ring is typically 60-80 Shore A. A balance must be struck between sealing performance and ease of insertion and removal. Too low a hardness can lead to excessive deformation and jamming, while too high a hardness results in insufficient sealing force.

[0043] See appendix Figure 1 and attached Figure 4 The addition device 3 also includes a second top cover 302, which is threaded onto the side of the storage tank 301 away from the first top cover 101; at least one handle 311 is provided on the second top cover 302.

[0044] In this embodiment, the second top cover 302 is threaded onto the top of the storage tank 301, and together with the handle 311, it forms a dual function of convenient opening and closing and material protection. After the threads are tightened, they can effectively prevent air, moisture or impurities from entering the storage tank 301, which is especially suitable for environmentally sensitive modifiers, such as hygroscopic amine modifiers and easily oxidized multi-component modifiers.

[0045] Compared to snap-fit ​​or plug-in structures, the tightness of threaded connections can be precisely controlled, ensuring a seal while also allowing for easy opening by reverse rotation, facilitating the replenishment of modifiers into storage tank 301.

[0046] Handles 311 are typically two symmetrically distributed handles, 10-15cm in length, with anti-slip textures designed for the grip. When the storage tank 301 is full of modifier or the threads are slightly stuck due to material residue, applying torque through the handles 311 makes it easier and avoids hand slippage caused by directly unscrewing the top cover.

[0047] See appendix Figure 4 A motor 308 is installed on the second top cover 302, and an agitator 309 located inside the storage tank 301 is provided at the output end of the motor 308.

[0048] In this embodiment, the addition of a motor 308 and a stirring fan 309 inside the storage tank 301 to the second top cover 302 is a key functional design for the physical state of the modifier, such as high viscosity, particle content, and easy stratification. Its function is to ensure the uniformity of the modifier during the addition process, thereby improving the stability of the modification effect in the synthesis of PAE resin.

[0049] Modifiers have diverse physical properties, such as pastes, suspensions, and high-viscosity liquids. When left to stand, they are prone to stratification, sedimentation, or agglomeration. Direct addition can lead to uneven concentrations of modifiers entering the reaction equipment, ultimately affecting the consistency of PAE performance. The function of the stirring fan 309 is to solve these problems through continuous or intermittent stirring.

[0050] In this embodiment: the stirring fan 309 is typically a three-bladed or propeller-type, and the blade angle and length must be adapted to the inner diameter of the storage tank 301. The gap between the blade edge and the tank wall is controlled at 5-10mm to avoid dead corner residue.

[0051] See appendix Figure 4 The inner wall of the storage tank 301 is provided with a heating chamber 306, and a heating wire 307 is provided in the heating chamber 306.

[0052] In this embodiment, the design of the heating chamber 306 on the inner wall of the storage tank 301 and the heating wire 307 is a key functional upgrade for temperature-sensitive modifiers. Its function is to maintain the optimal physical state of the modifier through precise temperature control. The physical properties of modifiers, such as viscosity and melting point, often change drastically with temperature, and some solid modifiers easily crystallize and solidify at room temperature. The heating wire 307 transfers heat through the heating chamber 306, which can specifically solve these problems.

[0053] For high-viscosity modifiers, heating can break the intermolecular forces and significantly reduce viscosity. Combined with the shearing action of the stirring fan 309, it can ensure that the material flows evenly in the storage tank 301, avoiding blockage or flow fluctuations in the discharge pipe 303 due to excessive viscosity.

[0054] In this embodiment, the heating chamber 306 is an annular sandwich structure on the inner wall of the storage tank 301, surrounding the entire tank body to ensure uniform heat transfer. The sandwich structure allows the heat generated by the heating wire 307 to diffuse evenly through the metal tank wall, and the temperature gradient of the modifier inside the tank can be controlled within ±2℃, preventing local high temperatures from causing the modifier to decompose.

[0055] In this embodiment, the heating wire 307 is mostly a nickel-chromium alloy resistance wire, and the power is designed according to the capacity of the storage tank 301.

[0056] See appendix Figure 4 A control valve 304 is installed on the feed pipe 303, and a sensor 310 is installed on the inner wall of the second top cover 302.

[0057] In this embodiment, the addition of control valve 304 and sensor 310 is the core design element for upgrading the modifier addition device to automation, precision, and intelligence. The control valve 304 on the feed pipe 303 is a flow switch for modifier delivery. Its core function is to ensure, through mechanical or electronic control, that the amount of modifier entering the reaction equipment 1 perfectly matches the process requirements. Control valve 304 is typically an electromagnetic flow valve, which can precisely adjust its opening via electrical signals to achieve various modifier addition modes.

[0058] For low-viscosity modifiers, a straight-through solenoid valve can be used. For high-viscosity or particulate modifiers, a large-diameter, anti-clogging angle seat valve should be selected to avoid valve core jamming.

[0059] The sensor 310 on the inner wall of the second top cover 302 is a liquid level sensor, mostly ultrasonic or capacitive, which monitors the liquid level of the modifier in the storage tank 301 vertically downwards. When the liquid level is lower than the set threshold, an audible and visual alarm is triggered to remind the operator to replenish the material in time and avoid reaction interruption due to an empty tank. The valve output is calibrated in real time by combining the theoretical flow rate of the control valve 304 with the liquid level drop rate.

[0060] See appendix Figure 1 - Appendix Figure 4 It also includes the control panel.

[0061] In this embodiment, a control panel structure is designed to control the operation of the device.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A modifier addition device, characterized in that, include: The reaction device (1) includes a first top cover (101), and a through discharge hole (103) is provided on the first top cover (101). The positioning frame (2) is detachably mounted on the first top cover (101) and includes a positioning frame (201) located above the first top cover (101). Add equipment (3), including a storage tank (301), which is movably installed within the positioning frame (201); The storage tank (301) is provided with a discharge pipe (303) on the side facing the first top cover (101); the inner wall of the positioning frame (201) is provided with a plurality of sliding grooves (203) spaced apart, and a limiting groove (204) is provided corresponding to the plurality of sliding grooves (203); in the corresponding sliding grooves (203) and limiting grooves (204), the limiting groove (204) is connected to the sliding grooves (203); a plurality of sliders (305) are provided on the radial outer wall of the storage tank (301); when the slider (305) enters the limiting groove (204) along the sliding groove (203), the discharge pipe (303) is inserted into the discharge hole (103).

2. The modifier addition device according to claim 1, characterized in that, The first top cover (101) is provided with a mounting base (102), and the positioning frame (201) is detachably mounted on the mounting base (102) by bolts (202).

3. A modifier addition device according to claim 1 or 2, characterized in that, Multiple rubber rings (104) are installed on the inner wall of the feeding hole (103).

4. A modifier addition device according to claim 1 or 2, characterized in that, The adding device (3) also includes a second top cover (302), which is threaded onto the side of the storage tank (301) away from the first top cover (101); the second top cover (302) is provided with at least one handle (311).

5. The modifier addition device according to claim 4, characterized in that, A motor (308) is installed on the second top cover (302), and the output end of the motor (308) is provided with a stirring fan (309) located inside the storage tank (301).

6. A modifier addition device according to claim 1 or 2, characterized in that, The inner wall of the storage tank (301) is provided with a heating chamber (306), and a heating wire (307) is provided in the heating chamber (306).

7. The modifier addition device according to claim 4, characterized in that, A control valve (304) is installed on the feed pipe (303), and a sensor (310) is installed on the inner wall of the second top cover (302).

8. A modifier addition device according to claim 1 or 2, characterized in that, It also includes the control panel.

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