Shearing and emulsifying device for producing pesticide missible oil

Abstract

The utility model discloses a shearing and emulsifying device for producing pesticide missible oil, which comprises a tank body, a first stirring mechanism is arranged in the tank body and is used for shearing and emulsifying the pesticide missible oil, a plurality of overflow ports are sequentially arranged on the side wall of one side of the upper part of the tank body from top to bottom, and a liquid return port is arranged on the side wall of the other side of the lower part of the tank body. A liquid return pipe is connected between the plurality of overflow ports and the liquid return port and is used for returning pesticide missible oil overflowing from the upper part of the tank body to the lower part of the tank body in the shearing and emulsifying process. According to the utility model, aiming at pesticide missible oil at the edge under the action of centrifugal force, when the liquid level in the tank rises due to rapid rotation of the stirring mechanism in the tank, the pesticide missible oil at the edge overflows from the overflow port and is returned to the lower part of the tank body through the liquid return pipe, so that the effective contact between the pesticide missible oil and the stirring blades is increased; the emulsifying agent can be effectively sheared and emulsified, so that the pesticide missible oil can be uniformly refined.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide emulsifiable concentrate production, in particular to a shearing emulsifying device for producing pesticide emulsifiable concentrate. Background Art

[0002] Pesticide emulsifiable concentrate is a type of pesticide preparation. It is a liquid made by dissolving a relatively high concentration of active ingredients in a solvent and adding an emulsifier. It is generally diluted with a large amount of water to form a stable emulsion and then spread with a sprayer. The emulsifier is mostly a mixture of nonionic and anionic surfactants, and the solvent is mostly petroleum solvents such as xylene and methylnaphthalene, and alcohol solvents such as methyl isobutyl ketone and isopropyl alcohol are also used.

[0003] Among the physical properties of emulsifiable concentrate, the most important is the emulsification property (i.e. the ability of oil and water to form an emulsion), which is related to the subsequent use effect of the emulsifiable concentrate. In order to ensure that the emulsifiable concentrate has a high emulsification property as much as possible, it is usually necessary to shear emulsify it during the production process of the emulsifiable concentrate so that the emulsifiable concentrate can be fully refined and uniform. At present, the common shear emulsification device uses a stirring tank, and the stirring mechanism inside the stirring tank can shear emulsify the emulsifiable concentrate during the rapid rotation process.

[0004] However, due to the centrifugal force generated by the rapid rotation of the stirring mechanism, a portion of the emulsified oil is always at the edge. Therefore, it is difficult for this portion of the emulsified oil to fully contact the stirring mechanism, especially the stirring blades, and thus it is difficult to be effectively sheared and emulsified, resulting in uneven emulsified oil. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects and shortcomings of the prior art and to provide a shear emulsification device for producing pesticide emulsifiable concentrates. For the pesticide emulsifiable concentrates at the edge under the action of centrifugal force, when the stirring mechanism in the tank rotates rapidly to cause the liquid level in the tank to rise, the pesticide emulsifiable concentrates at the edge overflow from the overflow port and are returned to the lower part of the tank body through the return pipe to increase the effective contact between the pesticide emulsifiable concentrate and the stirring blades, so that the pesticide emulsifiable concentrate can be effectively sheared and emulsified, so that the pesticide emulsifiable concentrate can be refined and uniform.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A shear emulsification device for producing pesticide emulsifiable concentrates comprises a tank body, wherein a first stirring mechanism is installed inside the tank body and is used for shear emulsifying the pesticide emulsifiable concentrates. The device is characterized in that a plurality of overflow ports are sequentially arranged on one side wall of the upper part of the tank body from top to bottom, a liquid return port is arranged on the other side wall of the lower part of the tank body, a liquid return pipe is connected between the plurality of overflow ports and the liquid return port and is used for returning the pesticide emulsifiable concentrate overflowing from the upper part of the tank body during the shear emulsification process to the lower part of the tank body.

[0008] Furthermore, the liquid return pipe is connected to a liquid storage tank for temporarily storing the pesticide emulsifiable concentrate overflowing from the upper part of the tank body. A liquid inlet is provided on one side wall of the top of the liquid storage tank, and a liquid outlet is provided on the other side wall of the bottom of the liquid storage tank. A liquid return pump and a one-way valve are sequentially connected in the liquid return pipe from the liquid outlet to the liquid return port.

[0009] Furthermore, a liquid level sensor is installed on one inner wall of the liquid storage tank, and the liquid level sensor is electrically connected to the liquid return pump through a control unit.

[0010] Furthermore, a second stirring mechanism is installed in the liquid storage tank, and the second stirring mechanism includes a horizontal axis rotatably installed between the inner walls on both sides of the liquid storage tank, a plurality of second stirring blades fixedly connected to the horizontal axis, and a second driving motor for driving the horizontal axis to rotate.

[0011] Furthermore, the first stirring mechanism includes a vertical shaft rotatably mounted on the top cover of the tank body, a plurality of first stirring blades fixedly connected to the vertical shaft, and a first driving motor for driving the vertical shaft to perform periodic forward and reverse rotations.

[0012] Furthermore, each first stirring blade is provided with a plurality of densely distributed small holes along its length direction.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model aims at the pesticide emulsifiable concentrate at the edge under the action of centrifugal force. An overflow port is arranged at the upper part of the tank body, a liquid return port is arranged at the lower part of the tank body, and the overflow port and the liquid return port are connected by a liquid return pipe. When the stirring mechanism in the tank rotates rapidly to cause the liquid level in the tank to rise, the pesticide emulsifiable concentrate at the edge overflows from the overflow port and is returned to the lower part of the tank body by the liquid return pipe, thereby increasing the effective contact between the pesticide emulsifiable concentrate and the stirring blades, so that the pesticide emulsifiable concentrate can be effectively sheared and emulsified, thereby making the pesticide emulsifiable concentrate fine and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the partial structure of the liquid return pipe in the utility model.

[0017] Figure 3 It is a partial structural schematic diagram of the first stirring mechanism in the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 A shear emulsification device for producing pesticide emulsifiable concentrates comprises a tank body 1, a first stirring mechanism 2 is installed inside the tank body 1, and is used for shear emulsifying the pesticide emulsifiable concentrates. Three overflow ports 3 are arranged on one side wall of the upper part of the tank body 1 from top to bottom, and a liquid return port 4 is arranged on the other side wall of the lower part of the tank body 1. A liquid return pipe 5 is connected between the three overflow ports 3 and the liquid return port 4, and is used for returning the pesticide emulsifiable concentrate overflowing from the upper part of the tank body 1 during the shear emulsification process to the lower part of the tank body 1.

[0020] In the utility model, a liquid storage tank 6 is connected to the liquid return pipe 5 for temporarily storing the pesticide emulsifiable concentrate overflowing from the upper part of the tank body 1. A liquid inlet 7 is provided on one side wall of the top of the liquid storage tank 6, and a liquid outlet 8 is provided on the other side wall of the bottom of the liquid storage tank 6. A liquid return pump 9 and a one-way valve 10 are sequentially connected in the liquid return pipe 5 from the liquid outlet 8 to the liquid return port 4.

[0021] Therefore, by providing the liquid storage tank 6 , the pesticide emulsifiable concentrate overflowing from one overflow port or multiple overflow ports among the three overflow ports 3 is stored, and then pumped to the lower part of the tank body 1 through the liquid return port 4 by the liquid return pump 9 .

[0022] Furthermore, a liquid level sensor 11 is installed on one inner wall of the liquid storage tank 6 , and the liquid level sensor 11 is electrically connected to the liquid return pump 9 through the control unit.

[0023] Therefore, after the liquid level in the liquid storage tank 6 reaches the height where the liquid level sensor 11 is located, it is detected by the liquid level sensor 11, and then the control unit starts the liquid return pump 9 to pump the pesticide emulsifiable concentrate.

[0024] It should be noted that the height of the liquid level sensor 11 relative to the bottom of the liquid storage tank 6 should be slightly lower than the height of the liquid inlet 7 relative to the bottom of the liquid storage tank 6, so as to discharge the pesticide emulsifiable concentrate when the liquid storage tank 6 does not reach the storage upper limit.

[0025] Furthermore, a second stirring mechanism 12 is installed in the liquid storage tank 6, and the second stirring mechanism 12 includes a horizontal axis 13 rotatably installed between the inner walls on both sides of the liquid storage tank 6, a plurality of second stirring blades 14 fixedly connected to the horizontal axis 13, and a second driving motor 15 for driving the horizontal axis 13 to rotate.

[0026] Therefore, the second drive motor 15 drives the horizontal shaft 13 to rotate, thereby driving the plurality of second stirring blades 14 to rotate, so as to stir the pesticide emulsifiable concentrate in the liquid storage tank 6 to prevent it from sedimentation and stratification.

[0027] In the present invention, the first stirring mechanism 2 includes a vertical shaft 16 rotatably mounted on the top cover of the tank body 1, a plurality of first stirring blades 17 fixedly connected to the vertical shaft 16, and a first driving motor 18 for driving the vertical shaft 16 to perform periodic forward and reverse rotation.

[0028] Thus, the first driving motor 18 drives the vertical shaft 16 to perform periodic forward and reverse rotation, thereby driving the plurality of first stirring blades 17 to perform periodic forward and reverse rotation, so as to achieve a better shearing and emulsification effect.

[0029] Furthermore, each first stirring blade 17 is provided with a plurality of densely distributed small holes 19 along its length direction, so as to achieve a better shear emulsification effect.

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] When in use, the first drive motor 18 works to drive the vertical shaft 16 to perform periodic forward and reverse rotation, thereby driving a plurality of first stirring blades 17 to perform periodic forward and reverse rotation, thereby shearing and emulsifying the pesticide emulsifiable concentrate in the tank.

[0032] During this process, under the action of the centrifugal force generated by the rapid rotation of the first stirring mechanism 2, the liquid level in the tank rises, and the pesticide emulsifiable concentrate at the edge overflows through one or more of the three overflow ports 3 and flows into the liquid storage tank 6 through the liquid inlet 7 along the return pipe 5.

[0033] At this time, the second drive motor 15 works to drive the horizontal shaft 13 to rotate, thereby driving the plurality of second stirring blades 14 to rotate, stirring the pesticide emulsifiable concentrate in the liquid storage tank 6 to prevent it from precipitation and stratification.

[0034] When the liquid level in the liquid storage tank 6 reaches the height of the liquid level sensor 11, it is detected by the liquid level sensor 11 and fed back to the control unit, which then starts the liquid return pump 9 to pump the pesticide emulsifiable concentrate in the liquid storage tank 6 to the lower part of the tank body 1 through the liquid return port 4.

[0035] Since the utility model provides an overflow port 3 at the upper part of the tank body 1, a liquid return port 4 at the lower part of the tank body 1, and the overflow port 3 and the liquid return port 4 are connected by a liquid return pipe 5, when the stirring mechanism (first stirring mechanism 2) in the tank rotates rapidly to cause the liquid level in the tank to rise, the pesticide emulsifiable concentrate at the edge overflows from the overflow port 3 and is returned to the lower part of the tank body 1 by the liquid return pipe 5, thereby increasing the effective contact between the pesticide emulsifiable concentrate and the stirring blades, so that the pesticide emulsifiable concentrate can be effectively sheared and emulsified, thereby making the pesticide emulsifiable concentrate fine and uniform.

[0036] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0037] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A shear emulsification device for producing pesticide emulsifiable concentrates, comprising a tank body, wherein a first stirring mechanism is installed inside the tank body for shear emulsifying the pesticide emulsifiable concentrates, characterized in that: A plurality of overflow ports are arranged on one side wall of the upper part of the tank body in sequence from top to bottom, and a liquid return port is arranged on the other side wall of the lower part of the tank body. A liquid return pipe is connected between the plurality of overflow ports and the liquid return port to return the pesticide emulsifiable concentrate overflowing from the upper part of the tank body during the shear emulsification process to the lower part of the tank body.

2. A shear emulsification device for producing pesticide emulsifiable concentrate according to claim 1, characterized in that: The liquid return pipe is connected to a liquid storage tank for temporarily storing the pesticide emulsifiable concentrate overflowing from the upper part of the tank body. A liquid inlet is provided on one side wall of the top of the liquid storage tank, and a liquid outlet is provided on the other side wall of the bottom of the liquid storage tank. A liquid return pump and a one-way valve are sequentially connected in the liquid return pipe from the liquid outlet to the liquid return port.

3. A shear emulsification device for producing pesticide emulsifiable concentrates according to claim 2, characterized in that: A liquid level sensor is installed on one inner wall of the liquid storage tank, and the liquid level sensor is electrically connected to the liquid return pump through a control unit.

4. A shear emulsification device for producing pesticide emulsifiable concentrates according to claim 2, characterized in that: A second stirring mechanism is installed in the liquid storage tank, and the second stirring mechanism includes a horizontal axis rotatably installed between the inner walls of both sides of the liquid storage tank, a plurality of second stirring blades fixedly connected to the horizontal axis, and a second driving motor for driving the horizontal axis to rotate.

5. A shear emulsification device for producing pesticide emulsifiable concentrate according to claim 1, characterized in that: The first stirring mechanism comprises a vertical shaft rotatably mounted on the top cover of the tank body, a plurality of first stirring blades fixedly connected to the vertical shaft, and a first driving motor for driving the vertical shaft to perform periodic forward and reverse rotations.

6. A shear emulsification device for producing pesticide emulsifiable concentrates according to claim 5, characterized in that: Each first stirring blade is respectively provided with a plurality of densely distributed small holes along its length direction.

Images