Premixing device for production of brassin compound preparation
By adopting a multi-layer spray hole and conical nozzle design in the brassinolide compounding device, combined with a liquid pump circulation branch, the problem of material adhesion on the inner wall of the mixing vessel was solved, achieving higher mixing precision and uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-20
AI Technical Summary
In existing brassinolide compounding devices, materials tend to adhere to the inner wall of the mixing vessel, affecting the accuracy of the proportioning and making it difficult to enter the mixed liquid, resulting in inaccurate compounding.
It adopts a multi-layer spray hole and conical nozzle design, combined with a liquid pump circulation branch and electrically controlled valves, to spray liquid into the inner wall of the mixing vessel through the spray holes to flush and dissolve adhering substances, thereby enhancing the mixing effect.
This effectively prevents materials from adhering to the inner wall of the mixing tank, improves the accuracy and uniformity of mixing, and ensures that the materials are completely incorporated into the mixture.
Smart Images
Figure CN224009544U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a compounding device, especially to a mixing device for producing brassinolide compound preparation, and belongs to the technical field of chemical equipment. BACKGROUND
[0002] It is known to those skilled in the art of pesticides that brassinolide is a new type of plant endogenous hormone and a recognized high-efficiency, broad-spectrum, and non-toxic plant growth regulator. It has strong penetration and fast internal absorption, and can significantly increase the vegetative growth of plants and promote fertilization at very low concentrations. It can effectively increase the chlorophyll content, improve the photosynthesis efficiency, promote root growth and seedling growth, protect flowers and fruits, improve the cold resistance, drought resistance, salt and alkali resistance, and other stress resistance of crops, significantly reduce the occurrence of diseases, and significantly alleviate the occurrence of pesticide damage, so that the crops can quickly recover and grow, and the disease spots can be eliminated. In actual use, to expand the effect of the drug, brassinolide is often compounded and used with other effective ingredients, such as one or more ingredients such as mepiquat chloride and uniconazole. In the production of such compound preparations, the physical pre-mixing method is first adopted, and the equipment used for pre-mixing is relatively simple. Commonly used is a stirring tank with a feeding port at the upper part and a discharge pipe connected to the lower end. A discharge valve is installed on the discharge pipe. In the case of no installation design with a discharge drop, a liquid delivery pump is also connected to the discharge pipe after the discharge valve. A main shaft is installed on the stirring tank, and impellers are fixedly connected to the main shaft. The main shaft is driven by a motor with a speed reducer. During mixing, brassinolide is generally added first, then ethanol is added, and then effective ingredients and dressings with different designs are added (these substances are in the form of liquid or very fine powder). After the addition is completed, the motor is started to stir. After stirring for a set period of time (usually 60-90 minutes), the discharge valve is opened, and the pre-mixed mixture is sent to the next process by the liquid delivery pump. As the main effective ingredient, brassinolide has two forms of raw materials, mother liquor (liquid form) and solid powder (very fine powder solid). The current mixing device has the following problems during use: the main problem is that the upper part of the inner wall of the stirring tank is easily contaminated. In the brassinolide compound raw materials, there are many substances that are basically insoluble in water. These substances are generally soluble in ethanol. During feeding, these substances will inevitably adhere to the inner wall of the stirring tank. Due to the limitation of the liquid level in the stirring process, the upper part cannot be reached. If the adhered material is below the liquid level, it will enter the mixture during stirring. However, the substances adhered above the liquid level are difficult to enter the mixture. A clear adhered layer is formed over a long period of time. On the one hand, these adhered substances will affect the accuracy of the actual proportioning. On the other hand, these substances generally have adhesion, and will also adsorb particles and particle dust when solid materials are added, further affecting the accuracy of the compounding. SUMMARY
[0003] The purpose of this invention is to overcome the above-mentioned problems existing in the current brassinolide compound preparations and to provide a premixing device for the production of brassinolide compound preparations.
[0004] To achieve the purpose of this utility model, the following technical solution is adopted: A premixing device for the production of brassinolide compound preparations includes a stirring tank. The upper part of the stirring tank has a feeding port, and the lower end is connected to a discharge pipe. A discharge valve is installed on the discharge pipe, and a liquid pump is connected to the pipeline after the discharge valve. A main shaft with an axial direction of up and down is rotatably installed at the center of the stirring tank. Multiple layers of impellers are fixedly connected to the main shaft. The main shaft is fixedly connected to the output shaft of a reducer. The reducer is fixedly connected to the output shaft of a motor. The motor and reducer are fixedly installed on the upper part outside the stirring tank. The output shaft of the reducer... The shaft is hollow, with the upper part of the main shaft passing through it. One section of the upper part of the main shaft has a central hole that extends downward into the mixing vessel. Inside the mixing vessel, the main shaft has a spray hole that communicates with the central hole. The spray hole is located above the designed liquid level of the mixing vessel. A rigid pipe is fixedly connected to the central hole at the upper end of the main shaft. The rigid pipe is connected to the outlet of the rotary joint. A circulation pipe is connected to the inlet of the rotary joint. The outlet of the liquid pump is connected to two branches: a discharge branch and a circulation branch. Both branches are equipped with electrically controlled valves. The circulation branch is connected to the rotary joint through the circulation pipe.
[0005] Furthermore, multiple nozzles are provided at the same height, and the multiple nozzles are located on the same circumference.
[0006] Furthermore, the nozzles have multiple layers at different heights.
[0007] Furthermore, the spray hole is a screw hole, and a conical nozzle is screwed onto the screw hole. Multiple liquid outlet holes are opened on the end face of the conical nozzle.
[0008] The positive and beneficial technical effects of this utility model are as follows: This device can avoid the problems caused by the adhesion of materials to the inner wall of the mixing tank, and can also enhance the mixing effect. The specific implementation method will be described in detail. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the present invention.
[0010] Figure 2 This is a schematic diagram of the upper part of the spindle. Detailed Implementation
[0011] To more fully explain the implementation of this utility model, implementation examples are provided. These implementation examples are merely illustrative of this utility model and do not limit its scope.
[0012] The present invention will be further explained in detail with reference to the accompanying drawings, in which the following references are made: 1: mixing vessel; 2: main shaft; 3: reducer; 4: motor; 5: rotary joint; 6: circulation pipe; 7: discharge valve; 8: liquid pump; 9: electric valve A; 10: electric valve B; 11: impeller; 12: central hole; 13: spray hole; 14: conical nozzle; 15: discharge branch; 16: circulation branch.
[0013] As shown in the attached diagram, a premixing device for producing brassinolide compound preparations includes a stirred tank 1. The stirred tank has a feed port at the top and a discharge pipe connected to the bottom. A discharge valve 7 is installed on the discharge pipe, and a liquid pump 8 is connected to the pipe downstream of the discharge valve 7. A main shaft with an axial direction of up and down is rotatably mounted at the center of the stirred tank 2. Multiple layers of impellers 11 are fixedly connected to the main shaft 2. The main shaft 2 is fixedly connected to the output shaft of a reducer 3, which is fixedly connected to the output shaft of a motor 4. The motor and reducer are fixedly mounted on the upper part outside the stirred tank. The output shaft of the reducer is a hollow shaft, and the upper part of the main shaft passes through the hollow shaft. A section of the upper part of the main shaft has a central hole 12 extending downwards into the stirred tank. A spray hole 13 communicating with the central hole is opened on the main shaft inside the stirred tank. The spray hole is located above the designed liquid level of the stirred tank. In this embodiment, multiple spray holes are opened at the same height, and the multiple spray holes are located on the same circumference. The spray holes have multiple layers at different heights. Figure 2 The diagram shows two layers of spray holes, which are screw holes with a conical nozzle 14 screwed onto them. The end face of the conical nozzle has multiple liquid outlet holes, the size of which should be larger than the particle size of the solid powder. This is because the powders involved in the compounding are generally very fine, and some will dissolve in ethanol, so they generally will not clog the liquid outlet holes. In actual use, to prevent the liquid outlet holes from clogging, an arc-shaped through hole (arc-shaped slit) can be opened at the bottom front of the conical nozzle along the circumference. This can prevent solid materials from clogging the nozzle. The conical nozzle can increase the spray range, but it can also be achieved without the conical nozzle.
[0014] A rigid pipe is fixedly connected to the central hole at the upper end of the main shaft. The rigid pipe is connected to the outlet of the rotary joint 5. A circulation pipe 6 is connected to the inlet of the rotary joint. Two branches are connected to the outlet of the liquid pump, namely the discharge branch 15 and the circulation branch 16. Both branches are equipped with electrically controlled valves. In the figure, electrically controlled valve A is the electrically controlled valve on the circulation branch, and electrically controlled valve B10 is the electrically controlled valve on the discharge branch. The discharge branch flows to the next process, and the circulation branch is connected to the rotary joint through the circulation pipe 6.
[0015] When using this device, after the materials are added to the mixing tank, the motor is turned on to drive the mixing shaft for premixing. At this time, the discharge valve, electrical control valve A, and liquid pump are opened, while electrical control valve B is closed. The liquid mixture in the tank will then be pumped through the circulation pipe into the central hole and sprayed radially from the nozzle under the action of the liquid pump. The liquid pump delivers a certain pressure during the pumping process. This pressurized liquid, as the main shaft rotates, tangentially washes the inner wall of the mixing tank. This washing process has two effects: one is the removal of adhering substances through physical scouring; the other is the removal of adhering substances through solvent dissolution. This ensures that there are no adhering substances on the upper part of the inner wall of the mixing tank. During the entire mixing process, the circulation time driven by the liquid pump can be determined according to the degree of material adhesion; the liquid pump does not necessarily need to be started for circulation throughout the entire mixing process.
[0016] After a detailed description of the embodiments of this utility model, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent applications. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the technical solution of this utility model, and this utility model is not limited to the embodiments of the examples given in the specification.
Claims
1. A premixing device for producing brassinolide compound preparations, comprising a stirred tank, a feeding port at the top of the stirred tank and a discharge pipe connected to the bottom, a discharge valve installed on the discharge pipe, a liquid pump connected to the pipe downstream of the discharge valve, a main shaft rotatably mounted at the center of the stirred tank with its axial direction in the up-down direction, multiple layers of impellers fixedly connected to the main shaft, the main shaft fixedly connected to the output shaft of a reducer, the reducer fixedly connected to the output shaft of a motor, and the motor and reducer fixedly mounted on the upper part outside the stirred tank, characterized in that: The output shaft of the reducer is a hollow shaft. The upper part of the main shaft passes through the hollow shaft. A section of the upper part of the main shaft has a central hole. The central hole extends downward into the mixing vessel. A spray hole communicating with the central hole is opened on the main shaft inside the mixing vessel. The spray hole is located above the designed liquid level of the mixing vessel. A rigid pipe is fixedly connected to the central hole at the upper end of the main shaft. The rigid pipe is connected to the outlet of the rotary joint. A circulation pipe is connected to the inlet of the rotary joint. Two branches are connected to the outlet of the liquid pump, namely the discharge branch and the circulation branch. Both branches are equipped with electrically controlled valves. The circulation branch is connected to the rotary joint through the circulation pipe.
2. The premixing apparatus for producing brassinolide compound preparations according to claim 1, characterized in that: The spray holes are provided at the same height, and the multiple spray holes are located on the same circumference.
3. The premixing apparatus for producing brassinolide compound preparations according to claim 2, characterized in that: The nozzles described have multiple layers at different heights.
4. The premixing apparatus for producing brassinolide compound preparations according to claim 1, characterized in that: The spray hole is a screw hole, and a conical nozzle is screwed onto the screw hole. Multiple liquid outlet holes are opened on the end face of the conical nozzle.