Emulsifying pump and emulsifying system for liquid fertilizer

Abstract

The utility model discloses an emulsification pump and an emulsification system for liquid fertilizer, the emulsification pump comprises a pump body, the pump body is provided with a first feed port, a first discharge port, and a first-stage stator and rotor mechanism, a second-stage stator and rotor mechanism and a third-stage stator and rotor mechanism which are arranged between the first feed port and the first discharge port, the first feeding hole is connected with a feeding pipeline, and a filtering device is arranged on the feeding pipeline; the gap between the stator and the rotor in the second-stage stator and rotor mechanism is equal to the gap between the stator and the rotor in the third-stage stator and rotor mechanism, and is smaller than the gap between the stator and the rotor in the first-stage stator and rotor mechanism. According to the emulsification pump and the emulsification system provided by the invention, the shearing force on the liquid fertilizer is remarkably improved, the liquid fertilizer is fully emulsified, the phenomena of layering, crushing and the like in the storage process are prevented, and the production quality and the application performance of the liquid fertilizer are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid fertilizer production, and particularly relates to an emulsification pump and an emulsification system for liquid fertilizer. Background Art

[0002] The emulsification process in the production of liquid fertilizer is an important factor affecting the production of liquid fertilizer. The main function of emulsification is to fully shear and crush the substances in the liquid fertilizer, so that the liquid fertilizer structure is uniform, fine and stable, and prevent the precipitation of large particles and stratification.

[0003] The emulsification process is typically carried out in an emulsification pump. Existing emulsification pumps typically feature a multi-stage stator-rotor mechanism. The gap between the rotors and stators gradually decreases from the feed end to the discharge end, increasing the shearing effect. This progressive shearing process emulsifies the liquid fertilizer, aiming for an ideal emulsified state. However, to ensure proper operation, the gap between the rotors and stators is typically large, making it difficult to achieve the desired emulsification effect. Furthermore, reducing the gap between the rotors and stators can lead to jamming and disruption of normal operation. Utility Model Content

[0004] The purpose of the utility model is to provide a self-circulating emulsification system for liquid fertilizer in order to solve the deficiencies of the prior art.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] An emulsifying pump for liquid fertilizer comprises a pump body, wherein the pump body is provided with a first feed inlet, a first discharge port, and a multi-stage stator-rotor mechanism located between the first feed inlet and the first discharge port.

[0007] The first feed port is connected to a feed pipeline, and a filtering device is provided on the feed pipeline for filtering and removing large particles;

[0008] The multi-stage stator-rotor mechanism includes, in sequence, a first-stage stator-rotor mechanism, a second-stage stator-rotor mechanism, and a third-stage stator-rotor mechanism from the first feed port to the first discharge port. The gap between the stator and the rotor in the second-stage stator-rotor mechanism is equal to the gap between the stator and the rotor in the third-stage stator-rotor mechanism, and is smaller than the gap between the stator and the rotor in the first-stage stator-rotor mechanism.

[0009] Preferably, the gap between the stator and the rotor in the secondary stator-rotor mechanism is 3-5 mm; the gap between the stator and the rotor in the primary stator-rotor mechanism is 5-7 mm.

[0010] Preferably, the filtering device is provided with a heating component.

[0011] Preferably, a feed valve and a delivery pump are provided on the feed pipeline.

[0012] Preferably, the first discharge port is connected to a discharge pipeline, and the discharge pipeline is connected to a reflux branch pipe and a discharge branch pipe;

[0013] The outlet end of the reflux branch pipe is connected to the inlet end of the feed pipeline;

[0014] After the emulsified material in the emulsification pump is discharged from the discharge port and the discharge pipeline, it flows back to the emulsification pump through the reflux branch pipe for circulated emulsification, or is discharged through the discharge branch pipe to complete the emulsification.

[0015] Preferably, a three-way valve is provided between the discharge pipeline and the reflux branch pipe and the discharge branch pipe.

[0016] The present application also provides an emulsification system for liquid fertilizer, comprising the emulsification pump and emulsification tank as described above;

[0017] The emulsification tank is provided with a second feed inlet and a second discharge outlet;

[0018] The second feed port is connected to the reflux branch pipe, and the second discharge port is connected to the feed pipeline.

[0019] Preferably, the emulsification tank is provided with a stirring device, a dispersing device and an emulsifying device.

[0020] Preferably, one emulsification tank is connected to a plurality of emulsification pumps in parallel.

[0021] Preferably, the discharge branch pipe is connected to a finished product storage tank.

[0022] The emulsification pump and emulsification system provided in this application significantly increase the shear force on liquid fertilizer, allowing it to be fully emulsified, preventing stratification and breakage during storage, and improving the production quality and application performance of liquid fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an emulsification pump for liquid fertilizer provided by the present application;

[0024] Figure 2 This is a schematic structural diagram of an emulsification system for liquid fertilizer provided by the present application;

[0025] Description of reference numerals:

[0026] 1- emulsification pump; 11- motor; 12- pump body; 13- output shaft; 14- first feed port; 15- first discharge port; 16- first stator-rotor mechanism; 17- second stator-rotor mechanism; 18- third stator-rotor mechanism;

[0027] 2-emulsification tank; 21-stirring shaft; 22-stirring paddle; 23-dispersion shaft; 24-dispersion disk; 25-emulsification shaft; 26-emulsification head; 27-second feed port; 28-second discharge port;

[0028] 3-feeding pipeline; 31-feeding valve; 32-delivery pump; 33-filtering device;

[0029] 4-discharge pipeline; 41-reflux branch pipe; 42-discharge branch pipe; 43-three-way valve; 44-finished product tank. DETAILED DESCRIPTION

[0030] The emulsification pump for liquid fertilizer provided by this application is as follows: Figure 1 As shown, the pump body 12 includes a first feed port 14, a first discharge port 15, and a multi-stage stator-rotor mechanism located between the first feed port 14 and the first discharge port 15. The first feed port 14 is connected to a feed line 3, which is provided with a filter device 33 for filtering and removing large particles. The pump body 12 is connected to a motor 11, which drives the rotors in the multi-stage stator-rotor mechanism via an output shaft 13, generating shear force on the material between the stator and rotor.

[0031] The multi-stage stator-rotor mechanism, from the first feed port 14 to the first discharge port 15, comprises, in order, a first-stage stator-rotor mechanism 16, a second-stage stator-rotor mechanism 17, and a third-stage stator-rotor mechanism 18. The gap between the stator and rotor in the second-stage stator-rotor mechanism is equal to the gap between the stator and rotor in the third-stage stator-rotor mechanism, and smaller than the gap between the stator and rotor in the first-stage stator-rotor mechanism. Specifically, the gap between the stator and rotor in the second-stage and third-stage stator-rotor mechanisms is 3 to 5 mm, preferably 4 mm; the gap between the stator and rotor in the first-stage stator-rotor mechanism is 5 to 7 mm, preferably 6 mm.

[0032] As mentioned above, in the prior art, the gap between the multi-stage stator and rotor mechanism generally decreases gradually from the feed to the discharge direction, but in order to ensure the normal operation of the stator and rotor, the gap between the stators and rotors is generally large, resulting in weak shear emulsification particle size. The present application first provides a filtering device 33 at the feed end to remove large particles, and then reduces the gap between the first-stage stator and rotor by one level compared to before (the gaps between the first-stage, second-stage and third-stage stators and rotors in the prior art are 8, 6 and 4 mm, respectively), and adjusts the gap between the second-stage stator and rotor to be equal to the gap between the third-stage stator and rotor. This gap is the minimum gap to ensure that the stator and rotor can operate normally, thereby significantly improving the shear force on the liquid fertilizer while preventing large particles from affecting the normal operation of the stator and rotor, thereby improving the production quality of the liquid fertilizer.

[0033] As those skilled in the art will appreciate, the emulsification pump feed should be sufficiently broken up to reduce the presence of large particles.

[0034] The mesh size of the filter device 33 is preferably 10 to 30 meshes and can be adjusted according to actual conditions. Preferably, a heating component is provided on the filter device, and a certain temperature can promote the redissolution of large particles precipitated in the liquid fertilizer, thereby reducing the loss of nutrients in the liquid fertilizer.

[0035] Preferably, a feed valve 31 and a delivery pump 32 are provided on the feed pipeline 3 to control the feed amount and improve the emulsification effect.

[0036] Preferably, the first discharge port 15 is connected to a discharge pipeline 4 , and the discharge pipeline 4 is connected to a reflux branch pipe 41 and a discharge branch pipe 42 ; the outlet end of the reflux branch pipe 41 is connected to the inlet end of the feed pipeline 3 .

[0037] By installing a reflux branch and a discharge branch, the emulsified material in the emulsification pump can be discharged from the discharge port and discharge pipeline and then returned to the emulsification pump through the reflux branch and feed pipeline for circulated emulsification, thereby improving the emulsification effect of liquid fertilizer. When the ideal emulsification state is reached, the material can be discharged from the discharge branch, completing the emulsification process.

[0038] Preferably, a three-way valve 43 is provided between the discharge pipeline 4 and the return branch 41 and the discharge branch 42. The three-way valve facilitates the control of the material flow direction in the discharge pipeline.

[0039] like Figure 2 As shown, the present application also provides an emulsification system for liquid fertilizer, comprising the emulsification pump 1 and the emulsification tank 2 as described above; the emulsification tank 2 is provided with a second feed port 27 and a second discharge port 28; the second feed port 27 is connected to the reflux branch pipe 41, and the second discharge port 28 is connected to the feed pipeline 3. Preferably, the second feed port is located at the top of the emulsification tank for convenient feeding, and the second discharge port is located at the bottom or lower portion of the emulsification tank for convenient discharging.

[0040] Liquid fertilizer circulates and emulsifies between emulsification pump 1 and emulsification tank 2. Emulsification tank 2 can temporarily buffer and store materials, making it convenient to adjust the feed rate of the emulsification pump. At the same time, stirring and emulsification mechanisms can be set in the emulsification tank to further shear the materials and improve the emulsification effect.

[0041] Preferably, the feed branch pipe 42 is connected to a finished product tank 44 for storing the emulsified material. The finished product tank is also provided with a stirring device to continuously stir the liquid fertilizer to prevent stratification.

[0042] Since the amount of material processed by the emulsification pump is limited, one emulsification tank 2 can be connected to multiple emulsification pumps 1 arranged in parallel, so that multiple emulsification pumps can process materials at the same time, thereby improving the processing efficiency of the emulsification pumps. Figure 2 As shown, one emulsification tank 2 and one finished product tank 44 are connected to two emulsification pumps 1 respectively.

[0043] Preferably, the emulsifying tank 2 is equipped with a stirring device, a dispersing device, and an emulsifying device. The stirring device includes a stirring shaft 21 and a stirring paddle 22, which are driven by a motor to rotate at high speed to fully stir the material in the tank and achieve uniform mixing. The dispersing device includes a dispersing shaft 23 and a dispersing disc 24, which are driven by a motor to rotate at high speed to evenly disperse the material in the tank. The emulsifying device includes an emulsifying shaft 25 and an emulsifying head 26, which are driven by a motor to shear and emulsify the material in the tank.

[0044] By simultaneously arranging an emulsifying device, a stirring device and a dispersing device in an emulsifying tank, the dispersion uniformity of the liquid fertilizer can be effectively improved, the nutrients in the liquid fertilizer can be fully hydrolyzed, and the liquid fertilizer can be further sheared and emulsified, reducing the particle size of the liquid fertilizer so that the stator and rotor will not be stuck when it enters the emulsifying pump with a reduced stator-rotor gap for processing.

[0045] The emulsification tank 2 is combined with the emulsification pump 1 to circulate the liquid fertilizer, thereby obtaining a liquid fertilizer with high fineness and stability. The liquid fertilizer will not have problems such as stratification and demulsification after being stored for a long time.

[0046] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

Claims

1. An emulsification pump for liquid fertilizer, comprising a pump body, wherein the pump body is provided with a first feed port, a first discharge port, and a multi-stage stator-rotor mechanism located between the first feed port and the first discharge port, characterized in that: The first feed port is connected to a feed pipeline, and a filtering device is provided on the feed pipeline for filtering and removing large particles; The multi-stage stator-rotor mechanism includes, in sequence, a first-stage stator-rotor mechanism, a second-stage stator-rotor mechanism, and a third-stage stator-rotor mechanism from the first feed port to the first discharge port. The gap between the stator and the rotor in the second-stage stator-rotor mechanism is equal to the gap between the stator and the rotor in the third-stage stator-rotor mechanism, and is smaller than the gap between the stator and the rotor in the first-stage stator-rotor mechanism.

2. The emulsifying pump for liquid fertilizer according to claim 1, characterized in that: The gap between the stator and the rotor in the two-stage stator-rotor mechanism is 3 to 5 mm; the gap between the stator and the rotor in the one-stage stator-rotor mechanism is 5 to 7 mm.

3. The emulsification pump for liquid fertilizer according to claim 1, characterized in that: The filtering device is provided with a heating component.

4. The emulsifying pump for liquid fertilizer according to claim 1, characterized in that: The feed pipeline is provided with a feed valve and a delivery pump.

5. The emulsification pump for liquid fertilizer according to any one of claims 1 to 4, characterized in that: The first discharge port is connected to a discharge pipeline, and the discharge pipeline is connected to a reflux branch pipe and a discharge branch pipe; The outlet end of the reflux branch pipe is connected to the inlet end of the feed pipeline; After the emulsified material in the emulsification pump is discharged from the discharge port and the discharge pipeline, it flows back to the emulsification pump through the reflux branch pipe for circulated emulsification, or is discharged through the discharge branch pipe to complete the emulsification.

6. The emulsification pump for liquid fertilizer according to claim 5, characterized in that: A three-way valve is provided between the discharge pipeline and the reflux branch pipe and the discharge branch pipe.

7. An emulsification system for liquid fertilizer, characterized in that: comprising the emulsification pump and emulsification tank as claimed in claim 5; The emulsification tank is provided with a second feed inlet and a second discharge outlet; The second feed port is connected to the reflux branch pipe, and the second discharge port is connected to the feed pipeline.

8. The emulsification system for liquid fertilizer according to claim 7, characterized in that: The emulsification tank is provided with a stirring device, a dispersing device and an emulsifying device.

9. The emulsification system for liquid fertilizer according to claim 7, characterized in that: One emulsification tank is connected to a plurality of emulsification pumps in parallel.

10. The emulsification system for liquid fertilizer according to claim 7, characterized in that: The discharge branch pipe is connected to a finished product storage tank.

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