A co-melt slurry preparation device

Abstract

The utility model discloses a kind of co-melt slurry preparation devices, it is related to compound fertilizer processing technical field, comprising: multiple series mixing tank, screw conveyor pipe, stirring mechanism and controller, the top of mixing tank is connected with screw conveyor pipe, the inside of mixing tank is provided with stirring mechanism, the outside of mixing tank lower end is provided with heat preservation layer, the bottom between heat preservation layer and mixing tank forms liquid storage cavity, the side of liquid storage cavity is equipped with liquid inlet, the bottom of liquid storage cavity is equipped with liquid outlet, overflow port and discharge port are equipped on the lateral wall of mixing tank, the discharge port is located in the lower end of overflow port, the overflow port of first mixing tank is connected with the screw conveyor pipe of second mixing tank, the controller is connected with stirring mechanism communication;The utility model solves the problems, such as low stirring intensity, finished product is not up to standard, easy to stick, difficult to clean and serious heat loss in prior art.

Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer processing technology, specifically to a eutectic slurry preparation device. Background Technology

[0002] Currently, in the production process of co-melting slurry, in addition to considering the mixing between materials and the control of nutrients, it is even more important to ensure the production of compound fertilizers with good particle shape (uniform particles, high strength, less breakage, no agglomeration), stable nutrient content, and diverse varieties, which are highly praised by fertilizer users. To achieve the above points, while ensuring that the proportions of various raw materials in the production of compound fertilizer are scientifically reasonable, the materials must be stirred evenly in the mixing tank, and the various raw materials must be fully mixed and eutectic. The key to this process is to produce a slurry with good solubility, uniform nutrients, and suitable temperature within the corresponding temperature control range.

[0003] Current eutectic slurry preparation devices are unsatisfactory in terms of volume, heat exchange area, stirring method, stirring control, and product structure: nutrient content fluctuates greatly, particle strength is low, there are many broken particles, poor roundness, and severe agglomeration; the slurry tends to adhere to the inner wall of the equipment, process pipelines are prone to blockage, and uneven mixing of the slurry easily causes nozzle blockage, interrupting production and resulting in a large number of defective products; traditional single-stage mixing tanks have insufficient stirring intensity, leading to inadequate dispersion of phosphorus and potassium solid materials; powdered materials need to be preheated separately before mixing, resulting in a heat loss rate exceeding 25%, and the preheating temperature fluctuates greatly (±15℃), affecting the stability of the eutectic. Therefore, a eutectic slurry preparation device is needed to solve the above technical problems. Utility Model Content

[0004] In view of this, the present invention provides a eutectic slurry preparation device, which solves the problems of low stirring intensity, substandard finished products, easy sticking, difficulty in cleaning and serious heat loss in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A eutectic slurry preparation apparatus includes: multiple mixing tanks connected in series, a spiral conveying pipe, a stirring mechanism, and a controller. The top of each mixing tank is connected to the spiral conveying pipe. The stirring mechanism is installed inside each mixing tank. An insulation layer is installed on the outside of the lower end of each mixing tank. A liquid storage chamber is formed between the insulation layer and the bottom of the mixing tank. An inlet is opened on one side of the liquid storage chamber, and an outlet is opened at the bottom of the liquid storage chamber. An overflow port and a discharge port are opened on the side wall of each mixing tank. The discharge port is located below the overflow port. The overflow port of the first mixing tank is connected to the spiral conveying pipe of the second mixing tank. The controller is communicatively connected to the stirring mechanism.

[0007] Furthermore, the stirring mechanism includes a drive motor, a stirring shaft, a downward-pressing blade assembly, and an upward-turning blade assembly. The drive motor is fixed to the top of the mixing tank, and the output end of the drive motor is fixedly connected to the stirring shaft. The stirring shaft is provided with a downward-pressing blade assembly and an upward-turning blade assembly from top to bottom. The drive motor is communicatively connected to the controller.

[0008] Furthermore, the bending angle of the downward-pressing blade group and the upward-flipping blade group is 10-25°.

[0009] Furthermore, a uniform screen is provided on the stirring shaft, and the uniform screen is located above the overflow port.

[0010] Furthermore, a purge port is provided on the overflow port.

[0011] Furthermore, the outer wall of the spiral conveying pipe is wrapped with a heat-conducting sleeve.

[0012] Furthermore, a viscosity sensor is also installed inside the mixing tank, and the viscosity sensor is communicatively connected to the controller.

[0013] Furthermore, the mixing tank is also provided with an additional feed inlet at the top.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention features a simple structure and high stirring intensity. Multiple mixing tanks connected in series can reduce nutrient fluctuations, broken particles, and agglomeration in the eutectic slurry, while increasing particle strength and roundness. The stirring mechanism and purging port can create internal boiling motion, reducing uneven eutectic slurry on the inner wall, slurry adhesion to equipment, and pipe blockage in process pipelines. The spiral conveying pipe and storage chamber can preheat the slurry, reducing heat loss. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] In the figure:

[0019] 1-Mixing tank; 2-Spiral conveyor pipe; 3-Insulation layer; 4-Liquid storage chamber; 5-Liquid outlet; 6-Liquid inlet; 7-Discharge outlet; 8-Overflow outlet; 9-Purge port; 10-Extra feed inlet; 11-Drive motor; 12-Agitator shaft; 13-Upward-turning blade assembly; 14-Downward-pressing blade assembly; 15-Uniform screen; 16-Heat-conducting sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see the appendix Figure 1 This utility model provides a eutectic slurry preparation device, comprising: multiple mixing tanks 1 connected in series, a spiral conveying pipe 2, a stirring mechanism, and a controller. The top of each mixing tank 1 is connected to the spiral conveying pipe 2. The mixing tank 1 is equipped with a stirring mechanism inside. The lower end of each mixing tank 1 is provided with a heat insulation layer 3. A liquid storage cavity 4 is formed between the heat insulation layer 3 and the bottom of the mixing tank 1. A liquid inlet 6 is provided on one side of the liquid storage cavity 4, and a liquid outlet 5 is provided at the bottom of the liquid storage cavity 4. An overflow port 8 and a discharge port 7 are provided on the side wall of each mixing tank 1. The discharge port 7 is located below the overflow port 8. The overflow port 8 of the first mixing tank 1 is connected to the spiral conveying pipe 2 of the second mixing tank 1. The discharge port 7 of the first mixing tank 1 can also be connected to the spiral conveying pipe 2 of the second mixing tank 1. The controller is communicatively connected to the stirring mechanism.

[0022] Preferably, the stirring mechanism includes a drive motor 11, a stirring shaft 12, a downward-pressing blade assembly 14, and an upward-turning blade assembly 13. The drive motor 11 is fixed to the top of the mixing tank 1, and the output end of the drive motor 11 is fixedly connected to the stirring shaft 12. The stirring shaft 12 is provided with a downward-pressing blade assembly 14 and an upward-turning blade assembly 13 from top to bottom. The drive motor 11 is communicatively connected to a controller. The downward-pressing blade assembly 14 can turn the slurry at the bottom up and move it upward, while the upward-turning blade assembly 13 presses it down again, forming an internal boiling motion, which greatly increases the stirring intensity and effectively ensures the uniformity and stability of the eutectic slurry. At the same time, it effectively eliminates the wall adhesion, scaling and splashing that occur in the prior art, ensuring the safety and stability of production. The drive motor 11 can be a variable frequency motor to dynamically adjust the speed.

[0023] Preferably, the bending angle of the downward-pressing blade group 14 and the upward-turning blade group 13 is 10-25° to ensure the stability of the slurry.

[0024] Preferably, a uniform screen 15 is provided on the stirring shaft 12. The uniform screen 15 is located above the overflow port 8, which improves the diffusion effect of powdered materials in the mixing tank 1 and prevents the powdered materials from accumulating on one side.

[0025] Preferably, the overflow port 8 is provided with a purging port 9, so that when a mixing tank 1 malfunctions or becomes blocked, the corresponding mixing tank 1 can be quickly removed and the pipeline can be cleaned and maintained separately.

[0026] Preferably, the outer wall of the spiral conveying pipe 2 is wrapped with a heat-conducting sleeve 16. The outer wall of the spiral conveying pipe 2 is provided with a spirally surrounding heat-conducting sleeve 16. In practical applications, heat-conducting oil can be introduced into the heat-conducting sleeve 16 to heat the spiral conveying pipe 2. The heating of the spiral conveying pipe 2 can then preheat the mixture inside the spiral conveying pipe 2. The outer layer of the heat-conducting sleeve 16 is also covered with an aluminum silicate insulation layer 3 to prevent heat loss.

[0027] Preferably, the mixing tank 1 is also equipped with a viscosity sensor, which is connected to the controller and can adjust the speed of the drive motor 11 in real time according to the viscosity, thereby adjusting the viscosity of the eutectic slurry.

[0028] Preferably, the top of the mixing tank 1 is also provided with an additional feed inlet 10, which can be used to add auxiliary materials at any time.

[0029] The specific method of using this utility model is as follows:

[0030] The operator sequentially feeds materials into the mixing tank 1 through the spiral conveyor pipe 2. When the material requires a higher temperature, heat transfer oil can be introduced into the heat-conducting sleeve 16 to heat the spiral conveyor pipe 2 and preheat the material. After the material passes through the uniform screen 15, the diffusion effect of the powdered material in the mixing tank 1 is improved. The drive motor 11 is started, and the movement mode of the molten material in the mixing tank is changed by the downward pressure blade group 14 and the upward tilting blade group 13, and the material is mixed. When the material needs a suitable temperature, the operator can add heat transfer oil or refrigerant into the liquid storage chamber 4 through the liquid inlet 6 to change the temperature of the mixing tank 1. Finally, the material is continuously mixed in stages through multiple mixing tanks 1 to ensure that the material is fully mixed.

[0031] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0032] 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 novel features disclosed herein.

Claims

1. A eutectic slurry preparation apparatus, characterized in that, include: The mixing tanks (1), spiral conveying pipes (2), stirring mechanisms, and controllers are connected in series. The top of the mixing tanks (1) is connected to the spiral conveying pipes (2). The mixing tanks (1) are equipped with stirring mechanisms inside. The lower end of the mixing tanks (1) is equipped with a heat insulation layer (3). A liquid storage chamber (4) is formed between the heat insulation layer (3) and the bottom of the mixing tanks (1). An inlet (6) is opened on one side of the liquid storage chamber (4). An outlet (5) is opened at the bottom of the liquid storage chamber (4). An overflow port (8) and a discharge port (7) are opened on the side wall of the mixing tanks (1). The discharge port (7) is located at the lower end of the overflow port (8). The overflow port (8) of the first mixing tank (1) is connected to the spiral conveying pipes (2) of the second mixing tank (1). The controller is communicatively connected to the stirring mechanism.

2. The eutectic slurry preparation apparatus according to claim 1, characterized in that, The stirring mechanism includes a drive motor (11), a stirring shaft (12), a downward-pressing blade assembly (14), and an upward-turning blade assembly (13). The drive motor (11) is fixed on the top of the mixing tank (1). The output end of the drive motor (11) is fixedly connected to the stirring shaft (12). The stirring shaft (12) is provided with a downward-pressing blade assembly (14) and an upward-turning blade assembly (13) from top to bottom. The drive motor (11) is communicatively connected to the controller.

3. The eutectic slurry preparation apparatus according to claim 2, characterized in that, The bending angles of the downward-pressing blade group (14) and the upward-flipping blade group (13) are 10 to 25°.

4. The eutectic slurry preparation apparatus according to claim 2, characterized in that, A uniform screen (15) is provided on the stirring shaft (12), and the uniform screen (15) is located above the overflow port (8).

5. The co-melt paste preparation apparatus of claim 1, wherein The overflow port (8) is provided with a purge port (9).

6. The eutectic slurry preparation apparatus according to claim 1, characterized in that, The outer wall of the spiral conveying pipe (2) is wrapped with a heat-conducting sleeve (16).

7. The co-melt paste preparation apparatus of claim 1, wherein The mixing tank (1) is also equipped with a viscosity sensor, which is connected to the controller.

8. The apparatus for preparing a eutectic slurry according to claim 1, characterized in that, The mixing tank (1) is also provided with an additional feed inlet (10) at the top.

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