A stepwise feeding device for temperature-sensitive suspensions

Abstract

The application discloses a step-by-step feeding device for temperature-sensitive suspending agent, and relates to the technical field of feeding and mixing equipment.The feeding device comprises a mixing reaction kettle, a temperature control jacket is arranged outside the mixing reaction kettle, a circulating liquid pipe is connected to the temperature control jacket, a top cover is arranged on the top surface of the mixing reaction kettle, a support frame is arranged in the middle of the top surface of the top cover, and a stirring mechanism extending into the mixing reaction kettle is arranged on the top cover.The application overcomes the defects of the prior art, realizes step-by-step quantitative intermittent feeding of liquid material and powder material through forward and reverse rotation switching of a single driving source, and actively adjusts the mixing temperature in cooperation with the temperature control jacket, so that the feeding precision is high, the temperature control response is fast, the feeding device is suitable for multiple formula production, and the feeding device has high social use value and application prospect.

Description

Technical Field

[0001] This invention relates to the field of feeding and mixing equipment technology, and in particular to a stepwise feeding device for temperature-sensitive suspending agents. Background Technology

[0002] Suspension concentrates, a common water-based pesticide formulation, typically involve mixing and dispersing solid active ingredient powder, liquid adjuvants, and dispersants with a cold water phase in a mixing reactor. However, for temperature-sensitive suspension concentrates, the active ingredient powder and some adjuvants release significant heat of solution or hydration during mixing. If a large amount of material is added at once, it can easily cause a sharp rise in the temperature of the mixing system, leading to quality problems such as active ingredient decomposition, crystal transformation, or decreased suspension stability.

[0003] Existing feeding and mixing equipment typically only has a single feed inlet and a conventional stirring mechanism. Materials are added in large batches at once, lacking precise control over the timing and amount of material added. This makes it difficult to avoid problems such as excessively high local concentrations and heat accumulation. Furthermore, liquid additives and powdered active ingredients often share the same feeding channel, making it impossible to independently add liquid and powder in stages, further exacerbating the risk of temperature rise during the initial mixing phase. In addition, traditional equipment often uses multiple motors to drive stirring, liquid conveying, and powder feeding separately. This not only results in high energy consumption and a complex structure, but also poor coordination between the various execution units, making it difficult to flexibly adjust the feeding rate and ratio according to material characteristics. This fails to meet the process requirements of stepwise temperature control, quantitative feeding, and adaptability to multiple formulations in the preparation of temperature-sensitive suspensions.

[0004] To address this, we propose a stepwise feeding device for temperature-sensitive suspending agents. Summary of the Invention

[0005] To address the problems of inefficient feeding methods and lack of separate, step-by-step feeding of liquid and powder in existing feeding and mixing equipment during the preparation of temperature-sensitive suspensions, this invention adopts the following technical solution: A stepwise feeding device for temperature-sensitive suspending agents includes a mixing reactor, an external temperature control jacket, a circulating liquid pipe connected to the temperature control jacket, a top cover on the top surface of the mixing reactor, a support frame in the middle of the top surface of the top cover, a stirring mechanism extending into the interior of the mixing reactor on the top cover, a distribution tank and a stepwise liquid discharge mechanism on the top surface of the top cover, a powder inlet on the top surface of the distribution tank, a liquid tank on the top surface of the top cover, a discharge pipe connected to the bottom of the mixing reactor, and a protective cover on the top cover to protect the distribution tank and the stepwise liquid discharge mechanism.

[0006] Preferably, the stirring mechanism includes a drive motor mounted on the top of the support frame, a coupling connected to the bottom end of the output shaft of the drive motor, a main shaft extending into the interior of the mixing reactor connected to the bottom end of the output shaft of the coupling, and stirring blades for stirring the material provided at the bottom end of the main shaft.

[0007] Preferably, the top of the main shaft is provided with a drive gear located on the upper part of the top surface of the top cover, and the top surface of the top cover is provided with a first transmission gear and a second transmission gear in a circumferentially rotatable manner.

[0008] Preferably, the driving gear meshes with the first transmission gear and the second transmission gear respectively, and the bottom surface of the second transmission gear is provided with an incomplete gear.

[0009] Preferably, the step-by-step liquid dispensing mechanism includes liquid dispensing chambers symmetrically distributed and installed on the top surface of the top cover. A rotor frame roller is rotatably installed inside the liquid dispensing chamber. A flexible tube is provided on the inner peripheral wall of the liquid dispensing chamber by the rotation and compression of the rotor frame roller. The inlet of the flexible tube is connected to the outlet of the liquid tank. The outlet of the flexible tube extends through the top cover to the top of the inner cavity of the mixing reactor.

[0010] Preferably, the top surface of the liquid separation chamber is movably fitted with a first ratchet disk connected to the rotor frame roller shaft, the top surface of the first ratchet disk is rotatably provided with a first pawl disk, and the first pawl disk is provided with a first toothed ring that meshes with and matches the first transmission gear.

[0011] Preferably, the top surface of the distribution tank is provided with a powder guiding frame that communicates with the powder inlet, and the top of the powder guiding frame is connected to a powder tank containing powder materials.

[0012] Preferably, a powder dropping frame is provided on the bottom opening side of the dispensing tank, and a metering mechanism is rotatably provided inside the dispensing tank.

[0013] Preferably, the metering mechanism includes a main metering cylinder and a secondary metering cylinder assembled together. The main metering cylinder has a metering compartment, and a metering control mechanism is slidably fitted inside the metering compartment.

[0014] Preferably, the outer surface of the inner end of the main metering cylinder is provided with a second ratchet disk that rotatably extends to the outside of the dispensing tank, a second ratchet disk is rotatably provided on the second ratchet disk, and a second toothed ring is provided on the outer ring of the second ratchet disk to intermittently mesh with the incomplete gear.

[0015] Preferably, the quantity control mechanism includes quantity blocks disposed at the left and right ends of the inner cavity of the quantity chamber, and the top of the quantity block is provided with a limiting strip that cooperates with the inner cavity space of the main quantity cylinder to limit its displacement distance.

[0016] Preferably, the top surface of the secondary metering cylinder has an embedded groove, and a linkage spur gear is rotatably provided in the middle of the top surface of the embedded groove. The bottom surface of the metering block has a spur rack that meshes with and matches the linkage spur gear, and the bottom of the main metering cylinder has a guide groove for the positioning spur rack to provide guidance and limitation.

[0017] Preferably, the outer side of the dispensing tank is provided with a sealing plate, and an adjusting screw is rotatably fitted through the middle of the sealing plate. The inner end of the adjusting screw is rotatably connected to the surface of the metering block. The adjusting screw is threadedly fitted with the main metering cylinder, and the sealing plate is provided with a cylinder locking mechanism.

[0018] Preferably, the locking cylinder mechanism includes a locking plate that is movably fitted to the top surface of the sealing plate. The main metering cylinder has a locking groove for the locking plate to be inserted. A pressing plate is provided at the outer end of the locking plate. A telescopic guide rod with its movable end connected to the surface of the sealing plate is provided at the top of the pressing plate. A return spring is movably fitted to the outer surface of the locking plate. The two ends of the return spring are fixedly connected to the outer surface of the sealing plate and the surface of the pressing plate, respectively.

[0019] Compared with the prior art, the beneficial effects of the present invention are: By switching the forward and reverse rotation of a single drive motor in the stirring mechanism, the step-by-step liquid dispensing mechanism and the metering mechanism are driven intermittently, allowing liquid additives and powder materials to be added to the mixing reactor in small, multiple batches according to a set sequence. During forward rotation, the rotor rollers intermittently squeeze the hose to pump the liquid material in steps; during reverse rotation, the incomplete gear intermittently drives the metering mechanism to complete the step-by-step dispensing of powder. This design achieves precise control of the feeding ratio by controlling the intermittent opening and closing of the material flow.

[0020] By adding the exothermic reaction materials in stages and in small amounts multiple times, the sudden temperature rise caused by excessively high local concentrations or heat accumulation can be effectively avoided. In conjunction with the temperature control jacket and circulating liquid pipe installed outside the mixing reactor, real-time monitoring and active control of the mixing temperature can be achieved.

[0021] By utilizing the simultaneous meshing of the first and second transmission gears with the active gear, and through the unidirectional transmission characteristics of the two sets of ratchet assemblies, the automatic switching of functions under forward and reverse operation conditions is achieved, reducing the number of power components, lowering manufacturing costs and power consumption, simplifying control logic, and improving the timing reliability and long-term operational stability of step-by-step feeding.

[0022] By meshing and linking the metering blocks, spur rack, and linkage spur gear in the metering control mechanism, and with the adjustment screw being turned, the distance between the metering blocks on both sides can be adjusted synchronously and equidistantly, and the effective volume of the metering chamber can be changed linearly. This allows for precise setting of the amount of powder added at one time, meeting the process parameter adjustment requirements of different suspending agent formulations.

[0023] In summary, this invention overcomes the shortcomings of the prior art by switching between forward and reverse rotation of a single drive source to achieve stepwise quantitative intermittent feeding of liquid and powder materials. Combined with the active adjustment of mixing temperature by a temperature control jacket, it has the advantages of high feeding accuracy, fast temperature control response, and adaptability to multi-formulation production, and has high social use value and application prospects. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the overall structure of the present invention; Figure 3 For this Figure 2 Enlarged view of the local structure at point A; Figure 4 This is a schematic cross-sectional view of the structure of the present invention; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is a partial cross-sectional view of the present invention; Figure 7 For this Figure 6 Enlarged view of the local structure at point B; Figure 8 This is a schematic diagram of the internal structure of the dispensing tank in this invention.

[0026] In the diagram: 100, Mixing reactor; 1001, Top cover; 1002, Protective cover; 1003, Support frame; 1004, Discharge pipe; 200, Temperature control jacket; 2001, Circulating liquid pipe; 1, Stirring mechanism; 101, Drive motor; 102, Coupling; 103, Main shaft; 1031, Stirring blades; 104, Drive gear; 2, Distribution tank; 201, Powder inlet; 21, Powder tank; 22, Sealing plate; 3, Step-by-step liquid discharge mechanism; 301, Liquid distribution chamber; 302, Rotor frame roller; 3021, Hose; 303, First ratchet disc; 304, First pawl disc; 3041, First toothed ring; 31, Liquid tank. ; 4. Powder guiding frame; 5. Powder dropping frame; 6. Quantitative mechanism; 61. Main quantitative cylinder; 611. Quantitative bin; 612. Locking groove; 613. Guide groove; 62. Secondary quantitative cylinder; 621. Embedded groove; 63. Second ratchet disc; 64. Second ratchet disc; 641. Second gear ring; 7. Cylinder locking mechanism; 701. Telescopic guide rod; 702. Pressing plate; 703. Locking plate; 704. Return spring; 8. Adjusting screw; 9. Quantitative control mechanism; 901. Quantitative block; 902. Limiting bar; 903. Spur rack; 904. Linkage spur gear; 10. First transmission gear; 11. Second transmission gear; 111. Incomplete gear. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Refer to Figures 1 to 8A stepwise feeding device for a temperature-sensitive suspending agent includes a mixing reactor 100, an external temperature control jacket 200 fitted around the mixing reactor 100, a circulating liquid pipe 2001 connected to the temperature control jacket 200, and the circulating liquid pipe 2001 connected to an external circulating temperature control device to control the temperature of the materials inside the mixing reactor 100 during mixing. The mixing reactor 100 is covered with a top cover 1001, a support frame 1003 located in the middle of the top surface of the top cover 1001, a stirring mechanism 1 extending into the mixing reactor 1001 on the top cover 1001, a distribution tank 2 and a stepwise liquid discharge mechanism 3 on the top surface of the top cover 1001, a powder inlet 201 on the top surface of the distribution tank 2, and a... The mixing reactor 100 has a liquid tank 31 and a discharge pipe 1004 connected to the bottom. There are two step-by-step liquid dispensing mechanisms 3, which are used to introduce liquid additives and dispersants into the mixing reactor 100 in small amounts multiple times to mix with the cold water phase pre-added inside the mixing reactor 100, so as to avoid large temperature fluctuations during mixing and affect subsequent mixing processes. The top surface of the top cover 1001 is connected to a water inlet pipe to introduce the cold water phase into the mixing reactor 100. After the liquid additives and dispersants are introduced into the mixing reactor 100 and mixed with the cold water phase, the distribution tank 2 can quantitatively pour the powder into the mixing reactor 100. The top cover 1001 is provided with a protective cover 1002 to protect the distribution tank 2 and the step-by-step liquid dispensing mechanism 3.

[0029] Specifically, refer to Figure 1 and Figure 4 The stirring mechanism 1 includes a drive motor 101 mounted on the top of the support frame 1003. The bottom end of the output shaft of the drive motor 101 is connected to a coupling 102. The bottom end of the output shaft of the coupling 102 is connected to a main shaft 103 extending into the mixing reactor 100. The bottom end of the main shaft 103 is provided with stirring blades 1031 for stirring the material. Through the setting of the stirring mechanism 1, the output shaft of the drive motor 101 drives the main shaft 103 to drive the stirring blades 1031 to rotate inside the mixing reactor 100, thereby stirring and mixing the material in the mixing reactor 100.

[0030] Specifically, refer to Figure 2 and Figure 5 The top of the main shaft 103 is provided with an active gear 104 located on the upper part of the top surface of the top cover 1001. The top surface of the top cover 1001 is provided with a first transmission gear 10 and a second transmission gear 11 that rotate evenly in the circumference. The number of the first transmission gears 10 is matched with the number of the step-by-step liquid dispensing mechanism 3.

[0031] Specifically, refer to Figure 2 and Figure 3The drive gear 104 meshes with the first transmission gear 10 and the second transmission gear 11 respectively. The bottom surface of the second transmission gear 11 is provided with an incomplete gear 111. Through the rotation of the main shaft 103, the rotation of the drive gear 104 can drive the first transmission gear 10 and the second transmission gear 11 to rotate. The output shaft of the drive motor 101 can rotate in both directions, thereby driving the main shaft 103 to rotate in both directions.

[0032] Specifically, refer to Figure 2 and Figure 4 The step-by-step liquid dispensing mechanism 3 includes a liquid dispensing chamber 301 symmetrically distributed on the top surface of the top cover 1001. A rotor roller 302 is rotatably installed inside the liquid dispensing chamber 301. A flexible tube 3021 is provided on the inner peripheral wall of the liquid dispensing chamber 301 and is squeezed by the rotor roller 302. The inlet of the flexible tube 3021 is connected to the outlet of the liquid tank 31. The outlet of the flexible tube 3021 extends through the top cover 1001 to the top of the inner cavity of the mixing reactor 100. By rotating the rotor roller 302, it can squeeze the outer surface of the flexible tube 3021, so that the liquid in the flexible tube 3021 can move from the inlet to the outlet, so that the liquid enters the interior of the mixing reactor 100 and mixes with the cold water phase in the mixing reactor 100.

[0033] Specifically, refer to Figure 2 and Figure 3 The top surface of the liquid distribution chamber 301 is movably fitted with a first ratchet disk 303 connected to the shaft of the rotor frame roller 302. The top surface of the first ratchet disk 303 is rotatably provided with a first pawl disk 304. The first pawl disk 304 is provided with a first toothed ring 3041 that meshes with the first transmission gear 10. By rotating the output shaft of the drive motor 101 in the forward direction, the meshing between the drive gear 104 and the first transmission gear 10 causes the rotation of the first transmission gear 10 to drive the first toothed ring 3041 to rotate, which in turn causes the first pawl disk 304 to drive the first ratchet disk 303 to rotate, thereby causing the rotor frame roller 302 to rotate inside the liquid distribution chamber 301, so that the rotor frame roller 302 can squeeze the hose 3021 and push the liquid inside it.

[0034] Specifically, refer to Figure 1 and Figure 4 The top surface of the distribution tank 2 is provided with a powder guide frame 4 that is connected to the powder inlet 201. The top of the powder guide frame 4 is connected to a powder tank 21 that contains powder materials. The powder tank 21 contains solid powder raw materials that need to be mixed. The addition method is the same as that of liquid additives and dispersants, which are added in small amounts and multiple times.

[0035] Specifically, refer to Figure 4 and Figure 6The bottom opening of the distribution tank 2 is provided with a powder dropping frame 5. A metering mechanism 6 is rotatably provided inside the distribution tank 2. By rotating the metering mechanism 6 inside the distribution tank 2, the powder material loaded in the metering mechanism 6 can enter the interior of the mixing reactor 100 through the powder dropping frame 5 and be mixed with the material inside the mixing reactor 100.

[0036] Specifically, refer to Figure 6 and Figure 8 The metering mechanism 6 includes a main metering cylinder 61 and a secondary metering cylinder 62 assembled together. The main metering cylinder 61 has a metering chamber 611 inside, and a volume control mechanism 9 is slidably fitted inside the metering chamber 611. The inside of the metering chamber 611 is used to load solid powder raw materials. The volume control mechanism 9 can adjust the space of the material loaded inside the metering chamber 611, thereby accurately controlling the amount of powder dispensed after the metering mechanism 6 rotates half a turn inside the distribution tank 2.

[0037] Specifically, refer to Figure 5 and Figure 6 The outer surface of the inner end of the main metering cylinder 61 is provided with a second ratchet disk 63 that rotatably extends to the outside of the distribution tank 2. A second ratchet disk 64 is rotatably provided on the second ratchet disk 63. A second toothed ring 641 that intermittently meshes with the incomplete gear 111 is provided on the outer ring of the second ratchet disk 64. By setting the second ratchet disk 63, when the output shaft of the drive motor 101 rotates in the opposite direction, the incomplete gear 111 meshes with the second toothed ring 641, causing the second ratchet disk 64 to drive the second ratchet disk 63 to rotate, thereby causing the main metering cylinder 61 and the secondary metering cylinder 62 to rotate inside the distribution tank 2, thereby causing the top opening of the metering chamber 611 to rotate from the top to the bottom, thereby allowing the powder raw material loaded in the metering chamber 611 to be poured into the mixing reaction vessel 100 through the powder drop frame 5. When the output shaft of the drive motor 101 rotates in the forward direction, the first pawl disk 304 can drive the first ratchet disk 303 to rotate, but the second ratchet disk 64 cannot drive the second pawl disk 63 to rotate. When the output shaft of the drive motor 101 rotates in the reverse direction, the second ratchet disk 64 can drive the second pawl disk 63 to rotate, but the first pawl disk 304 cannot drive the first ratchet disk 303 to rotate. When the output shaft of the drive motor 101 rotates in the opposite direction, the incomplete gear 111 and the second gear ring 641 intermittently mesh. When the incomplete gear 111 rotates one revolution, the metering mechanism 6 can rotate half a revolution inside the distribution tank 2, thereby allowing the powder material to be put into the mixing reactor 100, and leaving sufficient time for the powder material inside the powder tank 21 to fall into the metering chamber 611.

[0038] Example 2: Refer to Figures 1 to 8The difference between this embodiment and embodiment 1 is that the quantity control mechanism 9 includes a quantity block 901 disposed at the left and right ends of the inner cavity of the quantity chamber 611. The top of the quantity block 901 is provided with a limiting strip 902 that cooperates with the inner cavity space of the main quantity cylinder 61 to limit its displacement distance. The quantity block 901 is disposed in the quantity chamber 611. When the quantity block 901 moves away from each other and towards each other, the space inside the quantity chamber 611 used for loading powder materials can be adjusted.

[0039] Specifically, refer to Figure 7 and Figure 8 The top surface of the secondary metering cylinder 62 is provided with an embedded groove 621. A linkage spur gear 904 is rotatably provided in the middle of the top surface of the embedded groove 621. The bottom surface of the metering block 901 is provided with a spur rack 903 that meshes with the linkage spur gear 904. The bottom of the main metering cylinder 61 is provided with a guide groove 613 that provides guidance and limit for the positioning spur rack 903. The movement of the metering block 901 on one side can be linked by the meshing action between the spur rack 903 and the linkage spur gear 904, so that the metering block 901 on the other side can move synchronously by the same distance.

[0040] Specifically, refer to Figure 6 and Figure 8 The outer side of the dispensing tank 2 is provided with a sealing plate 22. An adjusting screw 8 is rotatably fitted through the middle of the sealing plate 22. The inner end of the adjusting screw 8 is rotatably connected to the surface of the metering block 901. The adjusting screw 8 is threadedly fitted with the main metering cylinder 61. When the metering mechanism 6 rotates inside the dispensing tank 2, it will not allow relative rotation between the adjusting screw 8 and the main metering cylinder 61, so that the position of the metering block 901 in the metering chamber 611 can be stabilized. By rotating the adjusting screw 8, the position of the metering block 901 inside the metering chamber 611 can be adjusted.

[0041] Specifically, refer to Figure 6 and Figure 8 The locking cylinder mechanism 7 includes a locking plate 703 that is movably fitted to the top surface of the sealing plate 22. The main metering cylinder 61 has a locking groove 612 for the locking plate 703 to be inserted into. The outer end of the locking plate 703 is provided with a pressing plate 702. The top of the pressing plate 702 is provided with a telescopic guide rod 701 whose movable end is connected to the surface of the sealing plate 22. A return spring 704 is movably fitted to the outer surface of the locking plate 703. The two ends of the return spring 704 are fixedly connected to the outer surface of the sealing plate 22 and the surface of the pressing plate 702, respectively. Through the setting of the locking cylinder mechanism 7, the locking plate 703 can be inserted into the inside of the locking groove 612, so that the metering mechanism 6 will no longer rotate inside the dispensing tank 2. By adjusting the rotation of the adjusting screw 8, the position of the metering block 901 in the metering chamber 611 can be adjusted. After the adjustment is completed, the pressing plate 702 is released, and the locking plate 703 is removed from the locking groove 612. The rotational speed of the output shaft of the drive motor 101 can be controlled to adjust its forward and reverse directions. Forward rotation allows the hose 3021 to be inserted into the mixing reactor 100 for quantitative step-by-step feeding control, while reverse rotation allows the metering mechanism 6 to be inserted into the mixing reactor 100 for quantitative step-by-step feeding control. By adjusting the speed of the output shaft of the drive motor 101, the flow rate of liquid and the speed of powder metering can be controlled. By adjusting the internal components of the metering mechanism 9, the loading amount of powder material inside the metering bin 611 can be regulated, thereby controlling the quantity of powder material dispensed at one time. The above regulation can control the flow rate of liquid material, the quantity of powder material, and the powder material dispensing interval, thereby completing the step-by-step dispensing operation of materials more precisely to adapt to the mixing and processing of different materials.

[0042] Other undescribed structures are described in Example 1.

[0043] Working principle: In this invention, a certain amount of cold water is first introduced into the mixing reactor 100 through the water inlet pipe, and an external circulating temperature control device is connected through the temperature control jacket 200 and the circulating liquid pipe 2001 to accurately control the temperature inside the mixing reactor 100, so as to ensure that the subsequent feeding and mixing process is always in a suitable temperature range. The drive motor 101 is started, and the output shaft of the drive motor 101 drives the main shaft 103 to rotate through the coupling 102. The stirring blades 1031 at the bottom of the main shaft 103 rotate continuously inside the mixing reactor 100, stirring and mixing the materials inside the reactor. While the main shaft 103 rotates, it drives the drive gear 104 at its top to rotate synchronously. The drive gear 104 meshes with the first transmission gear 10 and the second transmission gear 11 respectively, providing power to the step-by-step liquid discharge mechanism 3 and the metering mechanism 6. When liquid additives or dispersants need to be added, the output shaft of the drive motor 101 is controlled to rotate in the forward direction. At this time, the drive gear 104 drives the first transmission gear 10 to rotate, and the first transmission gear 10 drives the first pawl disk 304 to rotate through the first gear ring 3041. Due to the engagement direction of the first pawl disk 304 and the first ratchet disk 303, the first pawl disk 304 drives the first ratchet disk 303 and the rotor frame roller 302 connected to its shaft to rotate inside the liquid distribution chamber 301. The rotor frame roller 302 continuously squeezes the outer wall of the hose 3021 along the rotation path, causing the liquid in the hose 3021 to move from the inlet to the outlet, thereby transporting the liquid material in the liquid tank 31 to the inner cavity of the mixing reactor 100 in steps and in small quantities, realizing the step-by-step quantitative addition of liquid. At this time, since the engagement direction of the second ratchet disk 64 and the second pawl disk 63 is opposite to that described above, the second ratchet disk 64 cannot drive the second pawl disk 63 to rotate, so the metering mechanism 6 does not operate. When it is necessary to add powdered solid raw materials, the output shaft of the drive motor 101 is controlled to rotate in the reverse direction. At this time, the drive gear 104 drives the second transmission gear 11 to rotate, and the incomplete gear 111 on the bottom surface of the second transmission gear 11 intermittently meshes with the second gear ring 641. When the incomplete gear 111 meshes with the second gear ring 641, the second ratchet disk 64 rotates, and drives the second ratchet disk 63, the main metering cylinder 61 and the secondary metering cylinder 62 to rotate half a turn inside the distribution tank 2, so that the top opening of the metering chamber 611 changes from facing upward to facing downward, and the powder material pre-loaded in the metering chamber 611 falls into the mixing reactor 100 through the powder falling frame 5 under the action of gravity. Subsequently, the incomplete gear 111 re-engages with the second gear ring 641, allowing the main metering cylinder 61 and the secondary metering cylinder 62 to complete the remaining half-turn inside the distribution tank 2, causing the top opening of the metering chamber 611 to change from downward to upward. When the teeth of the incomplete gear 111 disengage from the second gear ring 641, the metering mechanism 6 stops rotating and remains stationary. At this time, the powder material in the powder tank 21 falls back into the metering chamber 611 through the powder guide frame 4 and the powder inlet 201, preparing for the next feeding. During this process, due to the restriction of the engagement direction between the first pawl disc 304 and the first ratchet disc 303, the first pawl disc 304 cannot drive the first ratchet disc 303 to rotate, therefore the step-by-step liquid dispensing mechanism 3 does not operate. This invention utilizes the forward and reverse switching of the drive motor 101 to achieve independent, stepwise, and quantitative dispensing of liquid and powder materials. Simultaneously, based on temperature control, the flow rate of liquid materials and the dispensing interval of powder materials can be adjusted by controlling the rotation speed of the drive motor 101. By operating the locking cylinder mechanism 7, the locking plate 703 is inserted into the locking groove 612 to lock the metering mechanism 6. Then, rotating the adjusting screw 8 adjusts the position of the metering block 901 within the metering chamber 611, changing the effective volume of the metering chamber 611. This allows for precise control of the amount of powder material dispensed per batch, preventing the mixing effect from being affected by excessive or insufficient material. After thorough mixing within the mixing reactor 100, all materials are finally discharged through the discharge pipe 1004.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A stepwise feeding device for temperature-sensitive suspending agents, comprising a mixing reactor (100), characterized in that: The mixing reactor (100) is fitted with a temperature control jacket (200), and a circulating liquid pipe (2001) is connected to the temperature control jacket (200). The top surface of the mixing reactor (100) is covered with a top cover (1001), and a support frame (1003) is provided in the middle of the top surface of the top cover (1001). A stirring mechanism (1) extending into the mixing reactor (100) is provided on the top cover (1001). A distribution tank (2) and a step-by-step liquid discharge mechanism (3) are provided on the top surface of the top cover (1001). A powder inlet (201) is opened on the top surface of the distribution tank (2). A liquid tank (31) is provided on the top surface of the top cover (1001). A discharge pipe (1004) is connected to the bottom of the mixing reactor (100).

2. The stepwise feeding device for temperature-sensitive suspending agents according to claim 1, characterized in that: The stirring mechanism (1) includes a drive motor (101) mounted on the top of the support frame (1003). The bottom end of the output shaft of the drive motor (101) is connected to a coupling (102). The bottom end of the output shaft of the coupling (102) is connected to a main shaft (103) extending into the mixing reactor (100). The bottom end of the main shaft (103) is provided with stirring blades (1031) for stirring the material.

3. The stepwise feeding device for temperature-sensitive suspending agents according to claim 2, characterized in that: The top of the main shaft (103) is provided with a drive gear (104) located on the upper part of the top surface of the top cover (1001), and the top surface of the top cover (1001) is provided with a first transmission gear (10) and a second transmission gear (11) circumferentially and evenly rotated.

4. A stepwise feeding device for temperature-sensitive suspending agents according to claim 3, characterized in that: The drive gear (104) meshes with the first transmission gear (10) and the second transmission gear (11) respectively. The bottom surface of the second transmission gear (11) is provided with an incomplete gear (111).

5. A stepwise feeding device for temperature-sensitive suspending agents according to claim 4, characterized in that: The step-by-step liquid dispensing mechanism (3) includes a liquid dispensing chamber (301) symmetrically distributed on the top surface of the top cover (1001). A rotor frame roller (302) is rotatably installed inside the liquid dispensing chamber (301). A flexible tube (3021) is provided on the inner peripheral wall of the liquid dispensing chamber (301) by the rotation and compression of the rotor frame roller (302). The inlet of the flexible tube (3021) is connected to the outlet of the liquid tank (31). The outlet of the flexible tube (3021) extends through the top cover (1001) to the top of the inner cavity of the mixing reactor (100).

6. A stepwise feeding device for temperature-sensitive suspending agents according to claim 5, characterized in that: The top surface of the liquid separation chamber (301) is movably fitted with a first ratchet disk (303) connected to the shaft of the rotor frame roller (302). The top surface of the first ratchet disk (303) is rotatably provided with a first pawl disk (304). The first pawl disk (304) is provided with a first toothed ring (3041) that meshes with the first transmission gear (10).

7. A stepwise feeding device for temperature-sensitive suspending agents according to claim 1, characterized in that: The top surface of the distribution tank (2) is provided with a powder guide frame (4) that communicates with the powder inlet (201), and the top of the powder guide frame (4) is connected to a powder tank (21) that holds the powder material.

8. A stepwise feeding device for temperature-sensitive suspending agents according to claim 1, characterized in that: The dispensing tank (2) has a powder dropping frame (5) on the bottom opening side, and a metering mechanism (6) is rotatably provided inside the dispensing tank (2).

9. A stepwise feeding device for temperature-sensitive suspending agents according to claim 8, characterized in that: The quantitative mechanism (6) includes a main quantitative cylinder (61) and a secondary quantitative cylinder (62) assembled together. A quantitative chamber (611) is provided inside the main quantitative cylinder (611), and a quantity control mechanism (9) is slidably fitted inside the quantitative chamber (611).

10. A stepwise feeding device for temperature-sensitive suspending agents according to claim 9, characterized in that: The outer surface of the inner end of the main metering cylinder (61) is provided with a second ratchet disk (63) that extends rotatably to the outside of the distribution tank (2). A second ratchet disk (64) is rotatably provided on the second ratchet disk (63). A second toothed ring (641) that intermittently meshes with the incomplete gear (111) is provided on the outer ring of the second ratchet disk (64).

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