Internal and external circulation emulsification pump and internal and external circulation emulsification system

Abstract

The invention discloses an internal and external circulation emulsification pump and an internal and external circulation emulsification system.The internal and external circulation emulsification pump comprises an emulsification tank and a control system, the bottom of the emulsification tank is provided with the emulsification pump, the side wall of the emulsification tank is provided with a feeding port and a material returning port, the emulsification pump comprises a pump body and an emulsification pump head, and the emulsification pump head comprises a shearing part and a material returning pipe; the shearing part comprises a shearing cavity, and an eccentric positioning plate and an eccentric connecting plate are arranged at an opening, connected with the bottom of the emulsifying tank, of the shearing cavity; the control system is respectively connected with the emulsifying pump and the eccentric positioning plate so as to respectively drive the emulsifying pump to perform emulsifying treatment and drive the eccentric connecting plate so that the edge of the eccentric connecting plate is separated from the cavity wall of the shearing cavity to form a gap or is in contact with the cavity wall of the shearing cavity to form sealing; the eccentric positioning plate is movably connected with the eccentric connecting plate in a matched mode so as to limit the maximum movement stroke of the eccentric connecting plate. External circulation and internal circulation emulsification of emulsified materials can be achieved, and the emulsification effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of emulsification equipment, and in particular to an internal-external circulation emulsification pump and an internal-external circulation emulsification system. Background Art

[0002] Emulsification system is a kind of equipment used to prepare and stabilize emulsions, in which emulsification pump plays a vital role in the system. Emulsion is a mixture of two or more immiscible liquids, usually one liquid dispersed in another liquid in the form of tiny droplets. The basic principle of emulsification pump is to mix two immiscible liquids and form a stable emulsion through mechanical force.

[0003] The emulsification pump draws two immiscible liquids into the pump through the suction port. These two liquids are called dispersed phase and continuous phase respectively. The dispersed phase is usually the side with smaller droplets, while the continuous phase is the liquid surrounding the dispersed phase. When the liquid enters the emulsification pump, the high-speed rotating blades in the pump will exert strong shear force on the liquid. This shear force will break up the larger droplets into smaller droplets, thereby increasing the contact area of ​​the two liquids and promoting mixing. Under the action of shear force, the droplets of the dispersed phase are further refined and evenly dispersed in the continuous phase. The special design of the emulsification pump causes the liquid to form strong turbulence in the pump, which further promotes the refinement and uniform distribution of the droplets. After being fully mixed and dispersed, the emulsion is transported to the storage container or the place of use through the discharge port of the pump. At this point, the emulsion has a high stability and uniformity, which can meet the needs of various industrial and scientific research applications. The current emulsification system has only a single cycle. Summary of the invention

[0004] In view of the above-mentioned shortcomings currently existing, the present invention provides an internal and external circulation emulsification pump and an emulsification system, which can realize external circulation and internal circulation emulsification of emulsified materials and improve the emulsification effect.

[0005] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0006] An internal-external circulation emulsification pump, which includes a pump body and an emulsification pump head, the emulsification pump head includes a shearing portion and a return pipe, the shearing portion includes a shearing cavity with an opening, a shearing head connected to the pump body is arranged in the shearing cavity, a return pipe is connected to the lower side of the shearing cavity, an eccentric positioning plate and an eccentric connecting plate are arranged at the opening of the shearing cavity, the edge of the eccentric connecting plate can be driven to separate from the cavity wall of the shearing cavity to form a gap or to contact with the cavity wall to form a seal, and the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate.

[0007] According to one aspect of the present invention, the shearing head comprises a shearing impeller and an impeller hub, and the shearing impeller is connected to the output shaft of the pump body.

[0008] An internal and external circulation emulsification system comprises an emulsification tank and a control system, wherein an emulsification pump is provided at the bottom of the emulsification tank, a feed port and a return port are provided on the side wall of the emulsification tank, the emulsification pump comprises a pump body and an emulsification pump head, the emulsification pump head comprises a shearing portion and a return pipe, the return pipe is connected between the lower outlet of the shearing portion and the return port, the shearing portion comprises a shearing cavity, an eccentric positioning plate and an eccentric connecting plate are provided at the opening where the shearing cavity is connected to the bottom of the emulsification tank, the control system is respectively connected to the emulsification pump and the eccentric positioning plate to respectively drive the emulsification pump to perform emulsification processing and drive the eccentric connecting plate so that the edge of the eccentric connecting plate is separated from the cavity wall of the shearing cavity to form a gap or contact to form a seal, and the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate.

[0009] According to one aspect of the present invention, a return material control valve is provided on the return material pipe.

[0010] According to one aspect of the present invention, the feed port is connected to a feed pipe and a batching device.

[0011] According to one aspect of the present invention, a feed control valve is provided on the feed pipe.

[0012] According to one aspect of the present invention, the shear chamber includes a main shear chamber and a bias shear chamber, and the return pipe is connected below the bias shear chamber.

[0013] According to one aspect of the present invention, the emulsifying pump head comprises a shearing head, which is disposed in the shearing main chamber and connected to the pump body and can be driven by the pump body to rotate for shearing.

[0014] According to one aspect of the present invention, the eccentric positioning plate is arranged on the upper side of the shear main cavity, and the eccentric positioning plate is a ring structure with an opening in the middle.

[0015] According to one aspect of the present invention, the edge of the eccentric connecting plate and the upper edge of the shear cavity wall are arranged in parallel and have an angle with respect to the horizontal direction, and the angle is 0° to 90°.

[0016] Advantages of the implementation of the present invention: the return port of the tank body is connected through the return pipe of the emulsification pump, so that the emulsified material forms an external circulation outside the tank body. Generally, when emulsifying high-viscosity, high-fat, and high-protein materials, the external circulation mode is adopted, which can effectively improve the material efficiency, have a large circulation volume, many batches, and less foam, ensuring that all materials in the tank body are emulsified, and the system can select 30-50 emulsification times per hour according to the characteristics of the material. Through the gap formed between the eccentric connecting plate and the shear cavity wall and the opening of the emulsification pump for suction, it is connected to the tank body to form an internal circulation. For ordinary materials, the return control valve of the return pipe can be adjusted to change the emulsification mode to the internal circulation mode. The emulsification head can shear the material at high speed, the material particle size is smaller, and the emulsification efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of an internal and external circulation emulsification system according to the present invention;

[0019] Figure 2 This is a schematic structural diagram of an internal and external circulation emulsification pump according to the present invention;

[0020] Figure 3 for Figure 2 A partial enlarged cross-sectional view;

[0021] Figure 4 This is a stereoscopic view of an internal and external circulation emulsification pump according to the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 and Figure 3As shown, an internal and external circulation emulsification pump comprises a driving motor 1 and an emulsification head 2 connected to the driving motor, a shearing cavity 3 with an opening is provided on the side of the emulsification head away from the driving motor, a shearing head 4 connected to the driving motor is provided in the shearing cavity, a return pipe 5 is connected to the lower side of the shearing cavity, an eccentric positioning plate 6 and an eccentric connecting plate 7 are provided at the opening of the shearing cavity, the edge of the eccentric connecting plate can be driven so as to separate from the cavity wall of the shearing cavity to form a gap 8 or to contact to form a seal, the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate. The edge of the eccentric connecting plate and the upper edge of the shearing cavity wall are arranged in parallel, and have an angle relative to the horizontal direction, and the angle is 0° to 90°.

[0025] The shearing head 4 includes a shearing impeller 41 and an impeller hub 42, and the shearing impeller is connected to the output shaft of the driving motor. The shearing chamber 3 includes a shearing main chamber 31 and a shearing side chamber 32, the return pipe is connected below the shearing side chamber, and the shearing head is arranged in the shearing main chamber. The eccentric positioning plate is arranged on the upper side of the shearing main chamber, and the eccentric positioning plate is an annular structure with an opening in the middle. A sealing ring 33 is arranged between the bottom of the impeller hub and the bottom of the shearing chamber, and the sealing ring includes at least two inner and outer layers.

[0026] The return pipe of the emulsification pump can be connected to the feed port of the connected emulsification tank, so that the emulsified material can form an external circulation outside the tank. Generally, when emulsifying high-viscosity, high-fat, and high-protein materials, the external circulation mode is adopted, which can effectively improve the material efficiency, with a large circulation volume, multiple batches, and less foam, ensuring that all materials in the tank are emulsified. According to the characteristics of the material, the system can select 30-50 emulsification times per hour. Through the gap formed between the eccentric connecting plate and the shear cavity wall and the opening of the emulsification pump for suction, it is connected to the tank to form an internal circulation. For ordinary materials, the return control valve of the return pipe can be adjusted to change the emulsification mode to the internal circulation mode. The emulsification head can shear the material at high speed, the material particle size is smaller, and the emulsification efficiency is higher.

[0027] Embodiment 2

[0028] like Figure 1 , Figure 2 and Figure 3As shown, an internal and external circulation emulsification pump comprises a driving motor 1 and an emulsification head 2 connected to the driving motor, a shearing cavity 3 with an opening is provided on the side of the emulsification head away from the driving motor, a shearing head 4 connected to the driving motor is provided in the shearing cavity, a return pipe 5 is connected to the lower side of the shearing cavity, an eccentric positioning plate 6 and an eccentric connecting plate 7 are provided at the opening of the shearing cavity, the edge of the eccentric connecting plate can be driven so as to separate from the cavity wall of the shearing cavity to form a gap 8 or to contact to form a seal, and the eccentric positioning plate is movably connected with the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate. A bracket 9 is provided between the driving motor and the shearing cavity, and the shearing head is fixedly sleeved on the output shaft of the driving motor through a connecting shaft 21 and a key. The edge of the eccentric connecting plate and the upper end edge of the shearing cavity wall are arranged in parallel, and have an angle relative to the horizontal direction, and the angle is 0° to 90°.

[0029] The shearing head 4 includes a shearing impeller 41 and an impeller hub 42, and the shearing impeller is connected to the output shaft of the driving motor. The shearing chamber 3 includes a shearing main chamber 31 and a shearing side chamber 32, the return pipe is connected below the shearing side chamber, and the shearing head is arranged in the shearing main chamber. The eccentric positioning plate is arranged on the upper side of the shearing main chamber, and the eccentric positioning plate is an annular structure with an opening in the middle. A sealing ring 33 is arranged between the bottom of the impeller hub and the bottom of the shearing chamber, and the sealing ring includes at least two inner and outer layers.

[0030] In practical applications, the connecting shaft and the outer bottom of the shear cavity are sealed by a mechanical seal dynamic and static ring structure, and the mechanical seal dynamic and static ring structure includes a mechanical seal large static ring 22, a mechanical seal dynamic ring 23 and a mechanical seal small static ring 24.

[0031] In practical applications, a water retaining ring 25 is provided at the connection position between the bottom of the connecting shaft and the driving motor.

[0032] The setting of the bracket and the connecting shaft can isolate the emulsification head from the driving motor, which has a simple structure, low failure rate and easy maintenance.

[0033] Advantages of this embodiment: The return pipe of the emulsification pump can be connected to the feed port of the connected emulsification tank, so that the emulsified material can form an external circulation outside the tank. Generally, when emulsifying high-viscosity, high-fat, and high-protein materials, the external circulation mode is adopted, which can effectively improve the material efficiency, with a large circulation volume, many batches, and less foam, ensuring that all materials in the tank are emulsified. According to the characteristics of the material, the system can select 30-50 emulsification times per hour. Through the gap formed between the eccentric connecting plate and the shear cavity wall and the opening of the emulsification pump for suction, it is connected to the tank to form an internal circulation. For ordinary materials, the return control valve of the return pipe can be adjusted to change the emulsification mode to the internal circulation mode. The emulsification head can shear the material at high speed, the material particle size is smaller, and the emulsification efficiency is higher.

[0034] Embodiment 3

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an internal and external circulation emulsification system includes an emulsification tank 100 and a control system 300, wherein an emulsification pump 200 is provided at the bottom of the emulsification tank, and a feed port 101 and a return port 102 are provided on the side wall of the emulsification tank, wherein the emulsification pump includes a pump body 1 and an emulsification pump head 2, wherein the emulsification pump head includes a shearing portion and a return pipe 5, wherein the return pipe is connected between the lower outlet of the shearing portion and the return port, wherein the shearing portion includes a shearing cavity 3, wherein an eccentric positioning plate 6 and an eccentric connecting plate 7 are provided at the opening where the shearing cavity is connected to the bottom of the emulsification tank, wherein the control system is respectively connected to the emulsification pump and the eccentric positioning plate to respectively drive the emulsification pump to perform emulsification processing and to drive the eccentric connecting plate so that the edge of the eccentric connecting plate is separated from the cavity wall of the shearing cavity to form a gap 8 or is in contact with the cavity wall to form a seal, and the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate. The return pipe 5 is provided with a return control valve 51, the feed port is connected with a feed pipe and a dosing device 104, the feed pipe is provided with a feed control valve 103, the shear chamber comprises a shear main chamber 31 and a shear bias chamber 32, the return pipe is connected below the shear bias chamber, the emulsifying pump head comprises a shear head 4, the shear head is arranged in the shear main chamber and is connected to the pump body and can be driven by the pump body to rotate for shearing, the edge of the eccentric connecting plate and the upper end edge of the shear chamber wall are arranged in parallel, and have an angle relative to the horizontal direction, and the angle is 0° to 90°.

[0036] In practical applications, the shear head 4 includes a shear impeller 41 and an impeller hub 42, and the shear impeller is connected to the output shaft of the pump body. The shear chamber 3 includes a shear main chamber 31 and a shear offset chamber 32, the return pipe is connected below the shear offset chamber, and the shear head is arranged in the shear main chamber. The eccentric positioning plate is arranged on the upper side of the shear main chamber, and the eccentric positioning plate is an annular structure with an opening in the middle. A sealing ring 33 is arranged between the bottom of the impeller hub and the bottom of the shear chamber, and the sealing ring includes at least two inner and outer layers.

[0037] In practical applications, the bottom of the emulsification tank is in a conical shape with the tip facing downward, which allows the material to be emulsified more thoroughly without residue.

[0038] The return pipe of the emulsifying pump is connected to the feed port of the emulsifying tank to allow the emulsified material to form an external circulation outside the tank. Generally, when emulsifying high-viscosity, high-fat, and high-protein materials, the external circulation mode is adopted. Specifically, the material is driven by the rotation of the emulsifying pump head to form a vortex, so that the vortex is sucked into the shear cavity by the opening above the shear cavity and sheared by the shear head, and then flows back into the tank through the return pipe and return port under the shear offset cavity, and continues to participate in the vortex material to enter the shear cavity and be sheared and emulsified. This external circulation mode can effectively improve the material efficiency, has a large circulation volume, many batches, and less foam, to ensure that all materials in the tank are emulsified, and according to the characteristics of the material, the system can select an emulsification frequency of 30-50 times per hour.

[0039] Through the gap formed between the eccentric connecting plate and the wall of the shear chamber and the opening of the emulsification pump, the material is sucked in and connected to the tank body to form an internal circulation. For ordinary materials, the emulsification mode can be changed to the internal circulation mode by adjusting the return control valve of the return pipe. Specifically, the material is driven by the rotation of the emulsification pump head to be sucked into the shear chamber through the opening above the shear chamber and sheared by the shear head, and then flows back into the tank body through the gap 8 above the side wall of the shear chamber, and continues to participate in entering the shear chamber to be sheared and emulsified. In this internal circulation mode, the emulsification head can shear the material at high speed, the material particle size is smaller, and the emulsification efficiency is higher.

[0040] In practical applications, the return control valve on the return pipe can be adjusted and the gap opened so that the material in the emulsification tank can be circulated both externally and internally at the same time, achieving a better emulsification effect.

[0041] Embodiment 4

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an internal and external circulation emulsification system includes an emulsification tank 100 and a control system 300, wherein an emulsification pump 200 is provided at the bottom of the emulsification tank, and a feed port 101 and a return port 102 are provided on the side wall of the emulsification tank, wherein the emulsification pump includes a pump body 1 and an emulsification pump head 2, wherein the emulsification pump head includes a shearing portion and a return pipe 5, wherein the return pipe is connected between the lower outlet of the shearing portion and the return port, wherein the shearing portion includes a shearing cavity 3, wherein an eccentric positioning plate 6 and an eccentric connecting plate 7 are provided at the opening where the shearing cavity is connected to the bottom of the emulsification tank, wherein the control system is respectively connected to the emulsification pump and the eccentric positioning plate to respectively drive the emulsification pump to perform emulsification processing and to drive the eccentric connecting plate so that the edge of the eccentric connecting plate is separated from the cavity wall of the shearing cavity to form a gap 8 or is in contact with the cavity wall to form a seal, and the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate. A bracket 9 is provided between the driving motor and the shearing chamber, and the shearing head is fixedly sleeved on the output shaft of the driving motor through a connecting shaft 21 and a key. A return control valve 51 is provided on the return pipe 5, and the feed port is connected to a feed pipe and a batching device 104, and a feed control valve 103 is provided on the feed pipe. The shearing chamber includes a shearing main chamber 31 and a shearing partial chamber 32, and the return pipe is connected below the shearing partial chamber. The emulsifying pump head includes a shearing head 4, which is arranged in the shearing main chamber and connected to the pump body and can be driven by the pump body to rotate for shearing, and the edge of the eccentric connecting plate and the upper end edge of the shearing chamber wall are arranged in parallel, and have an angle relative to the horizontal direction, and the angle is 0° to 90°.

[0043] In practical applications, the shear head 4 includes a shear impeller 41 and an impeller hub 42, and the shear impeller is connected to the output shaft of the pump body. The shear chamber 3 includes a shear main chamber 31 and a shear offset chamber 32, the return pipe is connected below the shear offset chamber, and the shear head is arranged in the shear main chamber. The eccentric positioning plate is arranged on the upper side of the shear main chamber, and the eccentric positioning plate is an annular structure with an opening in the middle. A sealing ring 33 is arranged between the bottom of the impeller hub and the bottom of the shear chamber, and the sealing ring includes at least two inner and outer layers.

[0044] In practical applications, the connecting shaft and the outer bottom of the shear cavity are sealed by a mechanical seal dynamic and static ring structure, and the mechanical seal dynamic and static ring structure includes a mechanical seal large static ring 22, a mechanical seal dynamic ring 23 and a mechanical seal small static ring 24.

[0045] In practical applications, a water retaining ring 25 is provided at the connection position between the bottom of the connecting shaft and the driving motor.

[0046] The setting of the bracket and the connecting shaft can isolate the emulsification head from the driving motor, which has a simple structure, low failure rate and easy maintenance.

[0047] In practical applications, the bottom of the emulsification tank is in a conical shape with the tip facing downward, which allows the material to be emulsified more thoroughly without residue.

[0048] The return pipe of the emulsifying pump is connected to the feed port of the emulsifying tank to allow the emulsified material to form an external circulation outside the tank. Generally, when emulsifying high-viscosity, high-fat, and high-protein materials, the external circulation mode is adopted. Specifically, the material is driven by the rotation of the emulsifying pump head to form a vortex, so that the vortex is sucked into the shear cavity by the opening above the shear cavity and sheared by the shear head, and then flows back into the tank through the return pipe and return port under the shear offset cavity, and continues to participate in the vortex material to enter the shear cavity and be sheared and emulsified. This external circulation mode can effectively improve the material efficiency, has a large circulation volume, many batches, and less foam, to ensure that all materials in the tank are emulsified, and according to the characteristics of the material, the system can select an emulsification frequency of 30-50 times per hour.

[0049] Through the gap formed between the eccentric connecting plate and the wall of the shear chamber and the opening of the emulsification pump, the material is sucked in and connected to the tank body to form an internal circulation. For ordinary materials, the emulsification mode can be changed to the internal circulation mode by adjusting the return control valve of the return pipe. Specifically, the material is driven by the rotation of the emulsification pump head to be sucked into the shear chamber through the opening above the shear chamber and sheared by the shear head, and then flows back into the tank body through the gap 8 above the side wall of the shear chamber, and continues to participate in entering the shear chamber to be sheared and emulsified. In this internal circulation mode, the emulsification head can shear the material at high speed, the material particle size is smaller, and the emulsification efficiency is higher.

[0050] In practical applications, the return control valve on the return pipe can be adjusted and the gap opened so that the material in the emulsification tank can be circulated both externally and internally at the same time, achieving a better emulsification effect.

[0051] Embodiment 5

[0052] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an internal and external circulation emulsification system includes an emulsification tank 100 and a control system 300, wherein an emulsification pump 200 is provided at the bottom of the emulsification tank, and a feed port 101 and a return port 102 are provided on the side wall of the emulsification tank, wherein the emulsification pump includes a pump body 1 and an emulsification pump head 2, wherein the emulsification pump head includes a shearing portion and a return pipe 5, wherein the return pipe is connected between the lower outlet of the shearing portion and the return port, wherein the shearing portion includes a shearing cavity 3, wherein an eccentric positioning plate 6 and an eccentric connecting plate 7 are provided at the opening where the shearing cavity is connected to the bottom of the emulsification tank, wherein the control system is respectively connected to the emulsification pump and the eccentric positioning plate to respectively drive the emulsification pump to perform emulsification processing and to drive the eccentric connecting plate so that the edge of the eccentric connecting plate is separated from the cavity wall of the shearing cavity to form a gap 8 or is in contact with the cavity wall to form a seal, and the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate. A cleaning device 105 is provided on the upper part of the tank body, a return control valve 51 is provided on the return pipe 5, the feed port is connected with a feed pipe and a dosing device 104, a feed control valve 103 is provided on the feed pipe, the shear chamber includes a shear main chamber 31 and a shear bias chamber 32, the return pipe is connected below the shear bias chamber, the emulsifying pump head includes a shear head 4, the shear head is arranged in the shear main chamber and is connected to the pump body and can be driven by the pump body to rotate for shearing, the edge of the eccentric connecting plate and the upper end edge of the shear chamber wall are arranged in parallel, and have an angle relative to the horizontal direction, and the angle is 0° to 90°.

[0053] In practical applications, the shear head 4 includes a shear impeller 41 and an impeller hub 42, and the shear impeller is connected to the output shaft of the pump body. The shear chamber 3 includes a shear main chamber 31 and a shear offset chamber 32, the return pipe is connected below the shear offset chamber, and the shear head is arranged in the shear main chamber. The eccentric positioning plate is arranged on the upper side of the shear main chamber, and the eccentric positioning plate is an annular structure with an opening in the middle. A sealing ring 33 is arranged between the bottom of the impeller hub and the bottom of the shear chamber, and the sealing ring includes at least two inner and outer layers.

[0054] In practical applications, the bottom of the emulsification tank is in a conical shape with the tip facing downward, which allows the material to be emulsified more thoroughly without residue.

[0055] In practical applications, the emulsification tank is provided with a vacuum system. Under the vacuum environment, the emulsification efficiency and effect are improved, and pollution and unnecessary reactions can be reduced.

[0056] In practical applications, the emulsification tank is provided with a manual feeding device.

[0057] The return pipe of the emulsifying pump is connected to the feed port of the emulsifying tank to allow the emulsified material to form an external circulation outside the tank. Generally, when emulsifying high-viscosity, high-fat, and high-protein materials, the external circulation mode is adopted. Specifically, the material is driven by the rotation of the emulsifying pump head to form a vortex, so that the vortex is sucked into the shear cavity by the opening above the shear cavity and sheared by the shear head, and then flows back into the tank through the return pipe and return port under the shear offset cavity, and continues to participate in the vortex material to enter the shear cavity and be sheared and emulsified. This external circulation mode can effectively improve the material efficiency, has a large circulation volume, many batches, and less foam, to ensure that all materials in the tank are emulsified, and according to the characteristics of the material, the system can select an emulsification frequency of 30-50 times per hour.

[0058] Through the gap formed between the eccentric connecting plate and the wall of the shear chamber and the opening of the emulsification pump, the material is sucked in and connected to the tank body to form an internal circulation. For ordinary materials, the emulsification mode can be changed to the internal circulation mode by adjusting the return control valve of the return pipe. Specifically, the material is driven by the rotation of the emulsification pump head to be sucked into the shear chamber through the opening above the shear chamber and sheared by the shear head, and then flows back into the tank body through the gap 8 above the side wall of the shear chamber, and continues to participate in entering the shear chamber to be sheared and emulsified. In this internal circulation mode, the emulsification head can shear the material at high speed, the material particle size is smaller, and the emulsification efficiency is higher.

[0059] In practical applications, the return control valve on the return pipe can be adjusted and the gap opened so that the material in the emulsification tank can be circulated both externally and internally at the same time, achieving a better emulsification effect.

[0060] Embodiment 6

[0061] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an internal and external circulation emulsification system includes an emulsification tank 100 and a control system 300, wherein an emulsification pump 200 is provided at the bottom of the emulsification tank, and a feed port 101 and a return port 102 are provided on the side wall of the emulsification tank, wherein the emulsification pump includes a pump body 1 and an emulsification pump head 2, wherein the emulsification pump head includes a shearing portion and a return pipe 5, wherein the return pipe is connected between the lower outlet of the shearing portion and the return port, wherein the shearing portion includes a shearing cavity 3, wherein an eccentric positioning plate 6 and an eccentric connecting plate 7 are provided at the opening where the shearing cavity is connected to the bottom of the emulsification tank, wherein the control system is respectively connected to the emulsification pump and the eccentric positioning plate to respectively drive the emulsification pump to perform emulsification processing and to drive the eccentric connecting plate so that the edge of the eccentric connecting plate is separated from the cavity wall of the shearing cavity to form a gap 8 or is in contact with the cavity wall to form a seal, and the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate. A bracket 9 is provided between the driving motor and the shearing chamber, and the shearing head is fixedly sleeved on the output shaft of the driving motor through a connecting shaft 21 and a key. A cleaning device 105 is provided on the upper part of the tank body, a return control valve 51 is provided on the return pipe 5, a feed pipe and a batching device 104 are connected to the feed port, a feed control valve 103 is provided on the feed pipe, the shearing chamber includes a shearing main chamber 31 and a shearing bias chamber 32, the return pipe is connected below the shearing bias chamber, the emulsifying pump head includes a shearing head 4, the shearing head is arranged in the shearing main chamber and connected to the pump body and can be driven by the pump body to rotate for shearing, the edge of the eccentric connecting plate and the upper end of the shearing chamber wall are arranged in parallel, and have an angle relative to the horizontal direction, and the angle is 0° to 90°.

[0062] In practical applications, the shear head 4 includes a shear impeller 41 and an impeller hub 42, and the shear impeller is connected to the output shaft of the pump body. The shear chamber 3 includes a shear main chamber 31 and a shear offset chamber 32, the return pipe is connected below the shear offset chamber, and the shear head is arranged in the shear main chamber. The eccentric positioning plate is arranged on the upper side of the shear main chamber, and the eccentric positioning plate is an annular structure with an opening in the middle. A sealing ring 33 is arranged between the bottom of the impeller hub and the bottom of the shear chamber, and the sealing ring includes at least two inner and outer layers.

[0063] In practical applications, the connecting shaft and the outer bottom of the shear cavity are sealed by a mechanical seal dynamic and static ring structure, and the mechanical seal dynamic and static ring structure includes a mechanical seal large static ring 22, a mechanical seal dynamic ring 23 and a mechanical seal small static ring 24.

[0064] In practical applications, a water retaining ring 25 is provided at the connection position between the bottom of the connecting shaft and the driving motor.

[0065] The setting of the bracket and the connecting shaft can isolate the emulsification head from the driving motor, which has a simple structure, low failure rate and easy maintenance.

[0066] In practical applications, the bottom of the emulsification tank is in a conical shape with the tip facing downward, which allows the material to be emulsified more thoroughly without residue.

[0067] In practical applications, the emulsification tank is provided with a vacuum system. Under a vacuum environment, the emulsification efficiency and effect are improved, and pollution and unnecessary reactions can be reduced.

[0068] In practical applications, the emulsification tank is provided with a manual feeding device.

[0069] The return pipe of the emulsifying pump is connected to the feed port of the emulsifying tank to allow the emulsified material to form an external circulation outside the tank. Generally, when emulsifying high-viscosity, high-fat, and high-protein materials, the external circulation mode is adopted. Specifically, the material is driven by the rotation of the emulsifying pump head to form a vortex, so that the vortex is sucked into the shear cavity by the opening above the shear cavity and sheared by the shear head, and then flows back into the tank through the return pipe and return port under the shear offset cavity, and continues to participate in the vortex material to enter the shear cavity and be sheared and emulsified. This external circulation mode can effectively improve the material efficiency, has a large circulation volume, many batches, and less foam, to ensure that all materials in the tank are emulsified, and according to the characteristics of the material, the system can select an emulsification frequency of 30-50 times per hour.

[0070] Through the gap formed between the eccentric connecting plate and the wall of the shear chamber and the opening of the emulsification pump, the material is sucked in and connected to the tank body to form an internal circulation. For ordinary materials, the emulsification mode can be changed to the internal circulation mode by adjusting the return control valve of the return pipe. Specifically, the material is driven by the rotation of the emulsification pump head to be sucked into the shear chamber through the opening above the shear chamber and sheared by the shear head, and then flows back into the tank body through the gap 8 above the side wall of the shear chamber, and continues to participate in entering the shear chamber to be sheared and emulsified. In this internal circulation mode, the emulsification head can shear the material at high speed, the material particle size is smaller, and the emulsification efficiency is higher.

[0071] In practical applications, the return control valve on the return pipe can be adjusted and the gap opened so that the material in the emulsification tank can be circulated both externally and internally at the same time, achieving a better emulsification effect.

[0072] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An internal and external circulation emulsification pump, comprising a pump body and an emulsification pump head, the emulsification pump head comprising a shearing portion and a return pipe, the shearing portion comprising a shearing cavity with an opening, the shearing cavity being provided with a shearing head connected to the pump body, the lower side of the shearing cavity being connected to a return pipe, characterized in that: An eccentric positioning plate and an eccentric connecting plate are provided at the opening of the shear cavity. The edge of the eccentric connecting plate can be driven to separate from the cavity wall of the shear cavity to form a gap or to come into contact with it to form a seal. The eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate.

2. The internal and external circulation emulsification pump according to claim 1, characterized in that: The shearing head comprises a shearing impeller and an impeller hub, and the shearing impeller is connected to the output shaft of the pump body.

3. An internal and external circulation emulsification system, comprising an emulsification tank and a control system, characterized in that: An emulsification pump is provided at the bottom of the emulsification tank, and a feed port and a return port are provided on the side wall of the emulsification tank. The emulsification pump includes a pump body and an emulsification pump head. The emulsification pump head includes a shearing portion and a return pipe, and the return pipe is connected between the lower outlet of the shearing portion and the return port. The shearing portion includes a shearing cavity, and an eccentric positioning plate and an eccentric connecting plate are provided at the opening where the shearing cavity is connected to the bottom of the emulsification tank. The control system is respectively connected to the emulsification pump and the eccentric positioning plate to respectively drive the emulsification pump to perform emulsification processing and drive the eccentric connecting plate so that the edge of the eccentric connecting plate is separated from the cavity wall of the shearing cavity to form a gap or contact to form a seal, and the eccentric positioning plate is movably connected to the eccentric connecting plate to limit the maximum movement stroke of the eccentric connecting plate.

4. The internal and external circulation emulsification system according to claim 3, characterized in that: The return pipe is provided with a return control valve.

5. The internal and external circulation emulsification system according to claim 3, characterized in that: The feed port is connected with a feed pipe and a batching device.

6. The internal and external circulation emulsification system according to claim 5, characterized in that: A feed control valve is arranged on the feed pipe.

7. The internal and external circulation emulsification system according to claim 3, characterized in that: The shearing cavity comprises a main shearing cavity and a biased shearing cavity, and the return pipe is connected below the biased shearing cavity.

8. The internal and external circulation emulsification system according to claim 7, characterized in that: The emulsifying pump head comprises a shearing head, which is arranged in a shearing main chamber and connected to the pump body and can be driven by the pump body to rotate for shearing.

9. The internal and external circulation emulsification system according to claim 7, characterized in that: The eccentric positioning plate is arranged on the upper side of the shear main cavity, and the eccentric positioning plate is a ring-shaped structure with an opening in the middle.

10. The internal and external circulation emulsification system according to any one of claims 3 to 9, characterized in that: The edge of the eccentric connecting plate and the upper edge of the shear cavity wall are arranged in parallel and cooperate with each other, and have an angle relative to the horizontal direction, and the angle is 0° to 90°.

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