A food-grade lubricant mixing device and method

Abstract

The present invention discloses a food-grade lubricant mixing device and method, which relates to the technical field of mixing devices and includes: a base; a mixing kettle fixedly connected to the top of the base; a mixing component, which is arranged inside the mixing kettle and is used for mixing raw materials; an atomization component, which is arranged on one side of the mixing kettle and the output position is inside the mixing kettle. By setting the atomization component, in the mixing process, base oil and non-powdery additives are first added to the mixing kettle, and the powdery additives are added to the powder cylinder. The powder is ejected from the two nozzles under the action of air pressure, so that the powdery additives are atomized and sprayed into the mixing kettle and mixed evenly with the base oil, thereby avoiding the phenomenon of agglomeration of the powdery additives during the mixing process. The process only needs to control the mixing speed and the spraying speed of the atomized powder to achieve uniform mixing, greatly improving the mixing effect of the powdery additives and the base oil.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing devices, and particularly relates to a food-grade lubricant mixing device and method. Background Art

[0002] Food-grade lubricants are lubricants specifically designed for mechanical equipment that comes into direct or indirect contact with food in industries such as food processing, pharmaceutical manufacturing, and animal feed production. They are non-toxic, odorless, and do not contaminate food, ensuring the safety and hygiene of the food processing process.

[0003] When mixing lubricants, since multiple raw materials including base oil and additives need to be added. Among them, for vegetable oil-based lubricants, it is necessary to add vegetable oil, antioxidants, pour point depressants, anti-wear agents, extreme pressure anti-wear agents, viscosity index improvers, and special functional additives (such as high-temperature resistant additives or repair additives). Among the above additives, the state of vegetable oil or some additives is liquid, while antioxidants, anti-wear agents, extreme pressure anti-wear agents, or viscosity index improvers are mostly in powder form. However, when the powdered additives are introduced into the liquid oil, these fine powder particles tend to aggregate with each other, forming a "clumping" phenomenon. This clumping behavior often stems from the action of the surface energy of the powder particles. They tend to reduce the overall surface energy by adsorbing each other, thus forming clusters that are not easily dispersed in the liquid environment. And as the additive powder is slowly sprinkled into the liquid oil, at first, only a few particles may briefly combine due to random collisions. But as time goes by and stirring proceeds, these initial small clusters will continuously attract the surrounding powder particles and gradually grow into larger lumps, thereby making the dispersion of the powder in the liquid oil uneven and difficult to form a homogeneous mixture, greatly reducing the mixing effect.

[0004] A Chinese patent (publication number CN204159286U) in the prior art proposes a powder and liquid mixing device to solve the above-mentioned existing technical problems. The technical solution disclosed in this patent document is as follows: The vibration motor drives the hopper to vibrate, preventing the powder from clogging the discharge port; the air pipe blows out gas to disperse the powder, and the nozzle sprays out liquid to quickly mix with the powder, effectively avoiding the powder from agglomerating and also improving the mixing efficiency; the stirrer stirs the mixture, making the liquid and powder mix more evenly and further improving the mixing efficiency. However, the method of directly spraying the liquid to mix with the powder still has certain problems. On the one hand, when the sprayed liquid drops are relatively large, it is easier to cause the powder to agglomerate. Because when the relatively large liquid drops come into contact with the powder particles, they may wrap around multiple powder particles due to gravity or surface tension, causing them to stick together to form agglomerates. Therefore, it is still difficult to achieve a sufficient and uniform mixing effect; on the other hand, after the powder contacts the liquid mist and is not completely diluted, it is stirred by the stirrer, so that the powder will be kneaded together like a dough, which will affect the subsequent mixing. Summary of the Invention

[0005] The purpose of the present invention is to provide a food-grade lubricant mixing device and method to solve the problem that in the process of mixing liquid and powder, the liquid wraps around multiple powder particles due to gravity or surface tension, causing them to stick together to form agglomerates.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A food-grade lubricant mixing device, comprising: a base; a mixing kettle is fixedly connected to the top of the base; a mixing component, the mixing component is arranged inside the mixing kettle and is used for mixing raw materials; an atomizing component, the atomizing component is arranged on one side of the mixing kettle and the output position is inside the mixing kettle, and the atomizing component is used for atomizing the powdery additive and spraying it into the mixing kettle; a mounting frame, the mounting frame is fixedly connected to one side of the mixing kettle, and a primary feeding hopper and a secondary feeding hopper are fixedly connected to the mounting frame, and the primary feeding hopper communicates with the inside of the mixing kettle; an auxiliary sedimentation component, the auxiliary sedimentation component is arranged inside the mixing kettle and is used for assisting the atomized powder to settle downward; the atomizing component includes a spray gun, the spray gun is fixedly installed on one side of the mixing kettle, a powder barrel for containing the powdery additive is arranged on the spray gun, a U-shaped pipe is arranged inside the mixing kettle, both ends of the U-shaped pipe are fixedly connected with atomizing nozzles, the output end of the spray gun extends into the mixing kettle and is connected to the central position of the U-shaped pipe through a pipeline, and the spray gun is connected to an external air pump through a pipeline.

[0008] By adopting the above technical solution, an atomizing component is provided. In the mixing process, base oil and non-powdered additives are first added to the mixing kettle, and powdered additives are added to the powder barrel. The powder is sprayed out from two nozzles with air pressure, so that the powdered additives are atomized and sprayed into the mixing kettle, and are evenly mixed with the base oil, thereby avoiding the phenomenon of powdered additives agglomerating during the mixing process. The process only needs to control the speed of the mixing and the powder atomization spraying to achieve uniform mixing, which greatly improves the mixing effect of the powdered additives and the base oil.

[0009] A further improvement of the technical solution of the present invention is that the auxiliary sedimentation component includes a diverter pipe, which runs through and is connected between the two sides of the mixing kettle, a plug is provided at one end of the diverter pipe, an oil pump is fixedly installed on the side of the mixing kettle close to the mounting frame, the output end of the oil pump is connected to the end of the diverter pipe away from the plug, the input end of the oil pump is connected to the bottom of the secondary feeding hopper through a pipeline, and two atomizing nozzles are provided on the diverter pipe.

[0010] By adopting the above technical solution, by setting up auxiliary sedimentation components, part of the base oil can be atomized and then sprayed into the mixing kettle. Since the oil mist has a greater density than the dust, it will be easier to settle after combining with the dust, and thus settle downwards to achieve the effect of dust reduction, thereby avoiding the situation where the additive dust is suspended in the air and cannot be directly mixed with the base oil.

[0011] A further improvement of the technical solution of the present invention is that the mixing component includes a rotating shaft rotatably connected between the inner walls of the mixing kettle, one end of the rotating shaft extends to the outside of the mixing kettle, a double-helix spiral ribbon is arranged on the outside of the rotating shaft, the double-helix spiral ribbon is arranged as a double-layer structure with opposite inner and outer spiral directions, the front view of the double-helix spiral ribbon is an axisymmetric structure, a first motor and a gear box are fixedly installed on the top of the base, and the output end of the first motor is connected to the rotating shaft through the gear box.

[0012] The above technical scheme is adopted. In order to cooperate with the spraying method of the additive powder, a spiral ribbon is arranged in an axially symmetrical manner, and the spiral ribbon is an inner and outer double spiral spiral ribbon. The spiral directions of the inner and outer spiral ribbons are opposite. When the first motor drives the rotating shaft to rotate, the spiral ribbon rotates accordingly. The outer spiral gathers the material from both sides to the middle, so that the additive powder that falls on both sides after atomization is pushed to the central position, and collides with each other after gathering at the central position, thereby achieving sufficient mixing; and the inner spiral transports the material from the center to both sides, forming convection mixing, which can greatly improve the mixing effect in conjunction with the atomization component.

[0013] A further improvement of the technical solution of the present invention is that a rotating frame is rotatably connected between the inner walls of the mixing kettle, a second motor is fixedly installed on the top of the base, one end of the central axis of the rotating frame extends to the outside of the mixing kettle and is connected to the output end of the second motor through a belt and pulley transmission, and a plurality of wing plates are fixedly connected to the side walls of the rotating frame at equal intervals; a baffle is fixedly connected between the two sides of the inner wall of the mixing kettle.

[0014] By adopting the above technical solution, a rotating frame is arranged on the upper side of the double-helix spiral belt, so that when the raw material is too full, a part of the rotating frame will be immersed. Through the rotation of the rotating frame, the raw material will be discharged to the side away from the baffle, so that the raw material will be discharged in a direction perpendicular to the feeding direction of the mixing component, so that the raw material powder can be continuously absorbed, avoiding the situation where the powder raw material cannot be mixed in time due to the mixing speed being affected when there are too many raw materials, resulting in clumping, thereby greatly improving the mixing effect.

[0015] A further improvement of the technical solution of the present invention is that the central axis of one side of the rotating frame is set as a hollow shaft, one end of the hollow shaft extends to the outside of the mixing kettle and is fixedly connected with a rotating joint, a connecting pipe is fixedly connected between the end of the rotating joint away from the hollow shaft and the bottom of the primary feeding hopper, a valve is installed on the connecting pipe, the interior of the primary feeding hopper is connected with the interior of the mixing kettle through the connecting pipe, the rotating joint and the hollow shaft, and a plurality of frame grooves are opened on the side wall of the rotating frame, and filter screens are fixedly connected to the inside of the frame grooves.

[0016] By adopting the above technical solution, a filter is arranged on the rotating frame. When the powder is sprayed into the mixing kettle, the air is discharged outward after passing through the filter. When the base oil begins to contact the rotating frame, the powder raw material adhered to the filter will contact the base oil as the rotating frame flips and mix. When the base oil is less, the mixed material contaminated on the filter will be thrown off through the high-speed rotation of the rotating frame, thereby reducing the adhesion of the material on the filter and avoiding clogging of the filter.

[0017] A further improvement of the technical solution of the present invention lies in that: elastic plates are symmetrically fixedly connected to both sides of the mixing kettle, an impact block is fixedly connected to one end of the elastic plate away from the mixing kettle, the impact block contacts the side wall of the mixing kettle, a movable plate is fixedly connected to the side of the impact block away from the elastic plate, and a driven friction block is arranged on one side of the movable plate; two transmission shafts are symmetrically rotatably connected to one side of the mixing kettle away from the mounting frame, one end of the two transmission shafts are connected to the rotating shaft through belts and pulleys; a friction assembly is arranged on the outer side of the transmission shaft, a concave surface matching the side wall of the friction assembly is arranged on the side of the driven friction block away from the movable plate, the concave surface and the side wall of the friction assembly are both arranged as rough surfaces, and the concave surface and the side wall of the friction assembly are in contact with each other; a tension spring is suspended between the side of the movable plate close to the driven friction block and the mixing kettle.

[0018] With the above technical solution, during the rotation of the rotating shaft, the transmission shaft will be driven to rotate through the belt and pulley drive, and then drive the friction assembly to rotate. During the relative rotation of the friction assembly and the driven friction block, friction will occur, generating vibration. The vibration is transmitted through the movable rod to make the impact block vibrate, and continuously transmitted to the mixing kettle, causing the mixing kettle to vibrate, thereby shaking off the materials adhering to the inner wall of the mixing kettle.

[0019] A further improvement of the technical solution of the present invention lies in that: the friction assembly includes two semi-cylinders connected to each other by screws and connectors. Alignment grooves are provided between the closer sides of the two semi-cylinders. Convex blocks that cooperate with the alignment grooves are symmetrically and fixedly connected to the outside of the transmission shaft, and the convex blocks are in contact with the alignment grooves; the driven friction block is connected to the movable plate by screws.

[0020] With the above technical solution, by setting the friction assembly as two semi-cylinders and connecting the two semi-cylinders by screws, it is convenient for disassembly and replacement. At the same time, the alignment groove and the alignment block are used for plug-in limit, so that the friction assembly will not slide axially relative to the transmission shaft and will not rotate circumferentially after installation, but will rotate with the rotation of the transmission shaft; the driven friction block and the movable plate are also connected by screws, which is convenient for disassembly and replacement.

[0021] A further improvement of the technical solution of the present invention lies in that: the tops of the primary feeding hopper and the secondary feeding hopper are both hinged with top covers. Through grooves are provided between the two end faces of the top covers, and a dust-proof net is fixedly connected inside the through grooves.

[0022] With the above technical solution, by providing a through groove with a dust-proof net on the top cover, it can allow air circulation with the outside while preventing dust from entering, thus avoiding dust pollution of the lubricant.

[0023] The present invention also provides a method for mixing food-grade lubricants:

[0024] S1. Take appropriate amounts of base oil and additives according to the ratio, and divide the base oil into two parts with different dosages. Add the part of the base oil with a larger dosage and the non-powdery additives directly into the mixing kettle;

[0025] Take the base oil and additives according to the ratio, and add part of the base oil and non-powdery additives into the mixing kettle for uniform mixing. There will be no agglomeration when the non-powdery additives are mixed with the base oil.

[0026] S2. Atomize the powdery additives and spray them evenly into the mixing kettle;

[0027] By atomizing the powder and spraying it into the interior of the mixing kettle, it can be evenly mixed with the base oil added to the mixing kettle in step S1, thus avoiding the phenomenon of powder additives aggregating during the mixing process. The process only needs to control the speeds of the mixed materials and the atomized powder spraying to achieve uniform mixing, greatly improving the mixing effect of the powder additives and the base oil.

[0028] S3. Atomize a part of the base oil with a smaller dosage in step S1 and spray it into the housing to be evenly mixed with the atomized additive, and the mixture settles downward to be mixed with the base oil.

[0029] To avoid the atomized powder-like additives suspending inside the mixing kettle after being sprayed out, which not only easily causes dust to adhere to the inner wall of the mixing kettle, but also the continuously suspended dust cannot be mixed with the base oil in time, thus affecting the mixing efficiency and effect. Therefore, only part of the base oil is added to the mixing kettle in step S1, and the remaining base oil is sprayed into the mixing kettle in an atomized form. On the one hand, it can directly mix with the additive dust through the spraying of the oil mist, so that the additive directly mixes with the oil mist in a particulate state and then dissolves in the base oil in the mixing kettle, further reducing the aggregation situation. At the same time, the oil mist has a greater density than the dust and is more likely to settle after combining with the dust, thus depositing downward.

[0030] S4. Vibrate the side wall of the mixing kettle until the raw materials adhering to the inner wall are shaken off.

[0031] The method of mixing the raw material spray and the oil mist will inevitably cause the mixed materials to adhere to the inner wall of the mixing kettle, which is not convenient for cleaning. By continuously transmitting vibration to the side wall of the mixing kettle, the materials adhering to the inner wall of the mixing kettle are shaken off.

[0032] Due to the adoption of the above technical solutions, the technical progress achieved by the present invention compared with the prior art is:

[0033] 1. The present invention provides a food-grade lubricant mixing device and method. By setting an atomizing component, during the mixing process, first add the base oil and non-powdery additives to the mixing kettle, and add the powdery additives to the powder barrel. The powder is sprayed out from two nozzles under the action of air pressure, atomizing the powder additives and spraying them into the interior of the mixing kettle, and mixing them evenly with the base oil, thus avoiding the phenomenon of powder additives aggregating during the mixing process. The process only needs to control the speeds of the mixed materials and the atomized powder spraying to achieve uniform mixing, greatly improving the mixing effect of the powder additives and the base oil.

[0034] 2. By providing an auxiliary sedimentation component, the present invention can atomize part of the base oil and then spray it into the mixing kettle. Since the oil mist has a greater density than the dust, it will be more likely to settle after combining with the dust, thus depositing downward to achieve the effect of dust reduction, and avoiding the situation where the additive dust is suspended in the air and cannot be directly mixed with the base oil. In addition, by directly mixing the sprayed oil mist with the additive dust, the two can be mixed to a great extent, so that the additive is directly mixed with the oil mist in a particulate state and then dissolved in the base oil in the mixing kettle, further reducing the agglomeration situation.

[0035] 3. The present invention provides an inner and outer double - spiral ribbon arranged axially symmetrically, with the spiral directions of the inner and outer ribbons being opposite. When the first motor operates to drive the rotation of the rotating shaft, the ribbon rotates accordingly. The outer - layer spiral gathers the materials from both sides to the middle, so that the atomized additive powder falling on both sides is pushed towards the central position, and after gathering at the central position, they collide with each other, thus achieving full mixing. The inner - layer spiral transports the materials from the center to both sides, forming convective mixing, which can greatly improve the mixing effect of the materials in cooperation with the atomizing component.

[0036] 4. By providing a rotating rack above the side of the double - spiral ribbon, when the raw materials are too full, part of the rotating rack will be submerged. Through the rotation of the rotating rack, the raw materials will be discharged to the side away from the baffle, so that the raw materials will be discharged in a direction perpendicular to the feeding direction of the mixing component, thus continuously absorbing the raw material powder and avoiding the situation of agglomeration caused by the inability to mix the powder raw materials in time due to the influence of the mixing speed when the raw materials are excessive, greatly improving the mixing effect.

[0037] 5. By providing a filter screen on the rotating rack, when the powder is sprayed into the mixing kettle, the air is discharged outward through the filter screen. When the base oil starts to contact the rotating rack, the powder raw materials adhering to the filter screen will contact the base oil and be mixed along with the flipping of the rotating rack. In the case of less base oil, through the high - speed rotation of the rotating rack, the mixed materials contaminated on the filter screen will be shaken off, thus reducing the adhesion of materials on the filter screen and avoiding the blockage of the filter screen.

[0038] 6. By providing an impact block, during the mixing process, it is driven by a belt and a pulley to make the transmission shaft rotate, and then drive the friction component to rotate. Through the friction generated during the relative rotation of the friction component with the driven friction block, vibration is generated, and through the transmission of the movable rod, the impact block vibrates and continuously transmits to the mixing kettle, making the mixing kettle vibrate, so as to shake off the materials adhering to the inner wall of the mixing kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The following further describes the present invention with reference to the drawings.

[0040] Figure 1It is a schematic structural diagram of the first perspective of the whole invention;

[0041] Figure 2 It is a schematic structural diagram of the second perspective of the whole invention;

[0042] Figure 3 It is a schematic cross-sectional structural diagram of the whole invention;

[0043] Figure 4 It is a schematic front cross-sectional structural diagram of the whole invention;

[0044] Figure 5 It is a schematic installation structural diagram of the impact block of the whole invention;

[0045] Figure 6 It is a schematic structural diagram of the double helix ribbon of the whole invention;

[0046] Figure 7 It is a schematic disassembled structural diagram of the active impact block of the whole invention;

[0047] Figure 8 It is a schematic structural diagram of the rotating frame of the whole invention;

[0048] Figure 9 For the whole invention Figure 3 Enlarged view at A;

[0049] Figure 10 For the whole invention Figure 3 Enlarged view at B.

[0050] In the figure: 1, base; 2, mixing kettle; 3, spray gun; 4, powder barrel; 5, mounting rack; 6, primary feeding hopper; 7, secondary feeding hopper; 8, rotating shaft; 9, double helix ribbon; 10, first motor; 11, U-shaped pipe; 12, rotating frame; 13, shunt pipe; 14, oil pump; 15, wing plate; 16, filter screen; 17, hollow shaft; 18, rotary joint; 19, baffle; 20, transmission shaft; 21, semi-cylinder; 22, alignment groove; 23, convex block; 24, elastic plate; 25, impact block; 26, movable plate; 27, driven friction block; 28, tension spring; 30, discharge pipe; 31, sealing cover; 32, top cover; 33, dust-proof net; 34, second motor. Detailed implementation method

[0051] The following further elaborates on the present invention in conjunction with embodiments:

[0052] Embodiment 1

[0053] As Figures 1 - 10 shown, the present invention provides a food-grade lubricant mixing device, including:

[0054] Base 1; a mixing kettle 2 is fixedly connected to the top of the base 1;

[0055] A mixing component, which is arranged inside the mixing kettle 2 and is used for mixing raw materials;

[0056] An atomizing component, which is arranged on one side of the mixing kettle 2 and the output position is inside the mixing kettle 2. The atomizing component is used for atomizing the powdery additive and spraying it into the mixing kettle 2;

[0057] A mounting rack 5, which is fixedly connected to one side of the mixing kettle 2. A primary feeding hopper 6 and a secondary feeding hopper 7 are fixedly connected to the mounting rack 5. The primary feeding hopper 6 communicates with the inside of the mixing kettle 2;

[0058] An auxiliary sedimentation component, which is arranged inside the mixing kettle 2 and is used for assisting the atomized powder to settle downward;

[0059] The atomizing component includes a spray gun 3, which is fixedly installed on one side of the mixing kettle 2. A powder cylinder 4 for containing the powdery additive is arranged on the spray gun 3. A U-shaped pipe 11 is arranged inside the mixing kettle 2. Both ends of the U-shaped pipe 11 are fixedly connected with atomizing nozzles. The output end of the spray gun 3 extends into the mixing kettle 2 and is communicated with the central position of the U-shaped pipe 11 through a pipeline. The spray gun 3 is communicated with an external air pump through a pipeline.

[0060] During the lubricant mixing process, since it is necessary to add various raw materials including base oil and additives. Among them, for vegetable oil-based lubricants, it is necessary to add vegetable oil, antioxidant, pour point depressant, anti-wear agent, extreme pressure anti-wear agent, viscosity index improver and special function additives (such as high temperature resistant additives or repair additives). And among the above additives, the state of vegetable oil or some additives is liquid, while antioxidants, anti-wear agents, extreme pressure anti-wear agents or viscosity index improvers are mostly powdery. However, when the powdery additives are introduced into the liquid oil, these fine powder particles tend to aggregate with each other, forming a "clumping" phenomenon;

[0061] In this embodiment, by setting the atomizing component, during the mixing process, the base oil and non-powdery additives are first added to the mixing kettle 2, and the powdery additives are added to the powder cylinder 4. The powder is ejected from the two nozzles under the action of air pressure, so that the powdery additive is atomized and sprayed into the mixing kettle 2 and mixed evenly with the base oil, thus avoiding the phenomenon of clumping of the powdery additive during the mixing process. The process only needs to control the mixing speed and the spraying speed of the atomized powder to achieve uniform mixing, greatly improving the mixing effect of the powdery additive and the base oil;

[0062] Among them, a sealing cover 31 is arranged on the top of the mixing kettle 2 to facilitate closing the mixing kettle 2 and prevent the atomized powder or base oil from splashing out; a discharge pipe 30 is arranged at the bottom of the mixing kettle 2, and an electric valve is arranged inside the discharge pipe 30 to facilitate controlling the discharge of the finished lubricant.

[0063] like Figure 3 , Figure 4 and Figure 9 As shown, preferably, the auxiliary sedimentation component includes a diverter pipe 13, which is connected through both sides of the mixing kettle 2, and a plug is provided at one end of the diverter pipe 13. An oil pump 14 is fixedly installed on the side of the mixing kettle 2 close to the mounting frame 5, and the output end of the oil pump 14 is connected to the end of the diverter pipe 13 away from the plug, and the input end of the oil pump 14 is connected to the bottom of the secondary feeding hopper 7 through a pipeline, and two atomizing nozzles are provided on the diverter pipe 13.

[0064] However, since the powdered additive is sprayed after being atomized, the additive will be suspended inside the mixing kettle 2 after being sprayed, which not only makes it easy for dust to adhere to the inner wall of the mixing kettle 2, but also the continuously suspended dust cannot be mixed with the base oil in time, thereby affecting the mixing efficiency and mixing effect;

[0065] In the present embodiment, a secondary feeding hopper 7 is provided. Since liquid additives account for a relatively small proportion of the raw materials used in the preparation process, while base oil accounts for a relatively large proportion, in actual operation, part of the base oil is first directly added from the primary feeding hopper 6 to the mixing kettle 2, and then the remaining base oil is added to the secondary feeding hopper 7. During the powder atomization process, the oil pump 14 is simultaneously controlled to work, and the base oil in the secondary feeding hopper 7 is extracted and discharged to the atomizing nozzle. The base oil is sprayed out after being atomized. The oil mist has a greater density than the dust, and will be easier to settle after combining with the dust, thereby depositing downward to achieve the effect of dust reduction, thereby avoiding the situation where the additive dust is suspended in the air and cannot be directly mixed with the base oil; in addition, by spraying the oil mist and directly mixing it with the additive dust, the two can be mixed to a great extent, so that the additive is directly mixed with the oil mist in a particle state and then dissolved in the base oil in the mixing kettle 2, thereby further reducing the situation of clumping.

[0066] Among them, the food-grade lubricant recorded in the article is a vegetable oil-based food lubricant, and the corresponding base oil is vegetable oil.

[0067] like Figure 3 and Figure 6 As shown, preferably, the mixing component includes a rotating shaft 8 rotatably connected between the inner walls of the mixing kettle 2, one end of the rotating shaft 8 extends to the outside of the mixing kettle 2, and a double-helical spiral ribbon 9 is arranged on the outside of the rotating shaft 8. The double-helical spiral ribbon 9 is arranged as a double-layer structure with opposite inner and outer spiral directions. The front view of the double-helical spiral ribbon 9 is an axisymmetric structure, and a first motor 10 and a gear box are fixedly installed on the top of the base 1, and the output end of the first motor 10 is transmission-connected to the rotating shaft 8 through the gear box.

[0068] Since the additive powder is ejected from both sides after being shunted, in this embodiment, in order to cooperate with the ejection mode of the additive powder, there is a ribbon arranged axially symmetrically, and the ribbon is an inner and outer double - spiral ribbon 9, and the spiral directions of the inner and outer ribbons are opposite. When the first motor 10 works to drive the rotating shaft 8 to rotate, the ribbon rotates accordingly. The outer - layer spiral gathers the materials from both sides to the middle, so that the atomized additive powder falling on both sides is pushed towards the central position, and after gathering at the central position, they collide with each other, thus achieving sufficient mixing; while the inner - layer spiral transports the materials from the center to both sides, forming convective mixing, which can greatly improve the mixing effect in cooperation with the atomizing component.

[0069] Embodiment 2

[0070] As Figure 3 and Figure 8 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, a rotating frame 12 is rotatably connected between the inner walls of the mixing kettle 2, and a second motor 34 is fixedly installed on the top of the base 1. One end of the central axis of the rotating frame 12 extends to the outside of the mixing kettle 2 and is in transmission connection with the output end of the second motor 34 through a belt and a pulley. A plurality of wing plates 15 are fixedly connected to the side wall of the rotating frame 12 at equal intervals; a baffle 19 is fixedly connected between the two sides of the inner wall of the mixing kettle 2.

[0071] Since the above - mentioned ribbon - type stirring structure has the same stirring mechanism as the traditional horizontal ribbon mixer, and both have the following problems: Assuming that the filling coefficient of the ribbon mixer is used to express the filling degree of the materials in the mixer, the full - load coefficient of the horizontal ribbon mixer is usually 0.6 - 0.8, which means that the height of the materials should be a certain distance lower than the highest point of the ribbon. When the full - load coefficient of the materials is too high (too much mixed material), it cannot be fully mixed and will lead to uneven mixing. More importantly, the mixing process is carried out in cooperation with the atomizing component. When the ribbon transports the raw materials to the central position too slowly, it is easy to cause the powder to gather again, thus easily leading to the situation of powder agglomeration;

[0072] In this embodiment, by arranging the rotating frame 12 above the side of the double - spiral ribbon 9, when the raw materials are too full, part of the rotating frame 12 will be immersed. Through the rotation of the rotating frame 12 and the flapping of the wing plates 15, the raw materials will be discharged to the side away from the baffle 19, so that the raw materials will be discharged in a direction perpendicular to the feeding direction of the mixing component, thereby continuously absorbing the raw material powder, avoiding the situation of powder agglomeration caused by the inability to mix the powder raw materials in time due to the influence of the mixing speed when the raw materials are too much, and greatly improving the mixing effect.

[0073] Embodiment 3

[0074] As Figure 3 and Figure 8As shown in the figure, on the basis of Embodiment 2, the present invention provides a technical solution: Preferably, the central axis on one side of the rotating frame 12 is set as a hollow shaft 17. One end of the hollow shaft 17 extends to the outside of the mixing kettle 2 and is fixedly connected with a rotary joint 18. A communicating pipe is fixedly connected between the end of the rotary joint 18 far from the hollow shaft 17 and the bottom of the primary charging hopper 6. A valve is installed on the communicating pipe. The inside of the primary charging hopper 6 communicates with the inside of the mixing kettle 2 through the communicating pipe, the rotary joint 18 and the hollow shaft 17. A plurality of frame grooves are formed in the side wall of the rotating frame 12, and filter nets 16 are fixedly connected inside the frame grooves.

[0075] Since it is necessary to push the powder raw material into the mixing kettle 2 by air pressure to generate spray, and the pressure relief capacity of the mixing kettle 2 is limited after the sealing cover 31 is closed, and the air pressure will be discharged outward from the corresponding pipeline of the primary charging hopper 6, but the powder will inevitably be discharged along with the channel; if only the traditional filter net 16 is used to block, although it can block the dust from being discharged outward, the dust adhering to the filter net 16 will easily block it. Especially when the base oil adheres to the filter net 16, it is easier to adhere to the dust, so that the filter net 16 cannot play a filtering effect.

[0076] In this embodiment, by arranging the filter net 16 on the rotating frame 12, when the powder is sprayed into the mixing kettle 2, the air passes through the filter net 16 and then is discharged outward through the hollow shaft 17, the rotary joint 18 and the primary charging hopper 6 in sequence, and the filter net 16 can flip along with the rotating frame 12. When the base oil submerges four-fifths of the double spiral ribbon 9, the base oil begins to contact the rotating frame 12, and the powder raw material adhering to the filter net 16 will contact the base oil along with the flipping of the rotating frame 12 for mixing; in the case of less base oil, through the high-speed rotation of the rotating frame 12, the powder raw material contaminated on the filter net 16 will be thrown off; in the case of more base oil, the base oil and the powder additive will adhere to the filter net 16, and the base oil will be thrown off during the process to assist in mixing until the mixed material is lower than the height of the bottom of the rotating frame 12. After that, all the mixed material adhering to the filter net 16 will be thrown off, thereby reducing the adhesion of the material on the filter net 16 and avoiding the blockage of the filter net 16.

[0077] Embodiment 4

[0078] As Figure 1 and Figure 5As shown, on the basis of Embodiment 3, the present invention provides a technical solution: Preferably, elastic plates 24 are symmetrically and fixedly connected to both sides of the mixing kettle 2. One end of the elastic plate 24 away from the mixing kettle 2 is fixedly connected to an impact block 25. The impact block 25 is in contact with the side wall of the mixing kettle 2. One side of the impact block 25 away from the elastic plate 24 is fixedly connected to a movable plate 26. A driven friction block 27 is arranged on one side of the movable plate 26; Two transmission shafts 20 are symmetrically and rotatably connected to the side of the mixing kettle 2 away from the mounting frame 5. One end of each of the two transmission shafts 20 is in transmission connection with the rotating shaft 8 through a belt and a pulley; A friction assembly is arranged on the outer side of the transmission shaft 20. A concave surface cooperating with the side wall of the friction assembly is arranged on the side of the driven friction block 27 away from the movable plate 26. The concave surface and the side wall of the friction assembly are both arranged as rough surfaces, and the concave surface and the side wall of the friction assembly are in contact with each other; A tension spring 28 is suspended between the side of the movable plate 26 close to the driven friction block 27 and the mixing kettle 2.

[0079] However, the method of mixing the raw material spray and the oil mist will inevitably cause the mixed material to adhere to the inner wall of the mixing kettle 2, which is not convenient for cleaning, and will affect the effect of raw material mixing, and at the same time will also affect the effect of subsequent mixed materials;

[0080] In this embodiment, during the rotation of the rotating shaft 8, the transmission shaft 20 will be rotated through the transmission of the belt and the pulley, and then drive the friction assembly to rotate. During the relative rotation of the friction assembly and the driven friction block 27, friction will be generated, thereby generating vibration, and the vibration will be transmitted through the movable rod to make the impact block 25 vibrate, and continuously transmitted to the mixing kettle 2, making the mixing kettle 2 vibrate, so as to shake off the materials adhering to the inner wall of the mixing kettle 2. At the same time, the vibration can promote the mixing of materials to a certain extent;

[0081] Among them, the elastic plate 24 is set as a spring plate.

[0082] Embodiment 5

[0083] As Figure 5 and Figure 7 shown, on the basis of Embodiment 4, the present invention provides a technical solution: Preferably, the friction assembly includes two semi-cylinders 21 connected to each other by screws and connecting pieces. Alignment grooves 22 are formed between the sides of the two semi-cylinders 21 close to each other. Convex blocks 23 cooperating with the alignment grooves 22 are symmetrically and fixedly connected to the outer side of the transmission shaft 20. The convex blocks 23 are in contact with the alignment grooves 22; The driven friction block 27 is connected to the movable plate 26 by screws.

[0084] Since in the above process, the vibration depends on the continuous mutual friction between the friction assembly and the driven friction block 27, and friction will inevitably cause wear, it is necessary to set the friction assembly and the driven friction block 27 as a detachable structure;

[0085] In this embodiment, by setting the friction assembly as two semi-cylinders 21, which are connected by screws between the two semi-cylinders 21, it is convenient for disassembly and replacement. At the same time, the alignment groove 22 and the alignment block are used for plugging and limiting, so that the friction assembly will not slide axially relative to the transmission shaft 20 after installation, and will not rotate circumferentially either, but will rotate along with the rotation of the transmission shaft 20; the driven friction block 27 and the movable plate 26 are also connected by screws, which is convenient for disassembly and replacement.

[0086] As Figure 1 and Figure 2 shown, preferably, top covers 32 are hinged to the tops of both the primary feeding hopper 6 and the secondary feeding hopper 7. Through grooves are formed between the two end faces of the top cover 32, and a dust-proof net 33 is fixedly connected inside the through groove.

[0087] After the base oil is added to the feeding hopper, in order to prevent dust from entering and contaminating the lubricant, the top cover 32 is provided; however, when the secondary feeding hopper 7 supplies oil to the shunt pipe 13, negative pressure is generated inside the feeding hopper. If it is directly closed, external air cannot enter; correspondingly, the primary feeding hopper 6 is required to release the air pressure generated during spraying into the mixing kettle 2, so it cannot be directly closed either;

[0088] In this embodiment, by providing a through groove with a dust-proof net 33 on the top cover 32, it can communicate with the external air while preventing dust from entering, thus avoiding dust from contaminating the lubricant.

[0089] The present invention also provides a method for mixing food-grade lubricants:

[0090] S1. Take appropriate amounts of base oil and additives according to the ratio, and divide the base oil into two parts with different dosages. Add the part of the base oil with a larger dosage and the non-powdery additives directly into the mixing kettle 2;

[0091] Take the base oil and additives according to the ratio, and add part of the base oil and non-powdery additives into the mixing kettle 2 for uniform mixing. There will be no agglomeration when the non-powdery additives are mixed with the base oil.

[0092] S2. Atomize the powdery additives and spray them evenly into the mixing kettle 2;

[0093] By atomizing and spraying the powder into the interior of the mixing kettle 2, it can be uniformly mixed with the base oil added to the mixing kettle 2 in step S1, thus avoiding the phenomenon of agglomeration of the powdery additives during the mixing process. During the process, only the speeds of the mixed materials and the atomized powder spraying need to be controlled to achieve uniform mixing, greatly improving the mixing effect of the powdery additives and the base oil.

[0094] S3. Atomize the part of the base oil with a smaller dosage in step S1, spray it into the housing, and uniformly mix it with the atomized additive. The mixture settles downward to be mixed with the base oil.

[0095] To avoid the powder additive being suspended inside the mixing kettle 2 after atomization and ejection. This not only easily causes dust to adhere to the inner wall of the mixing kettle 2, but also the continuously suspended dust cannot be mixed with the base oil in a timely manner, thus affecting the mixing efficiency and effect. Therefore, only part of the base oil is added to the mixing kettle 2 in step S1, and the remaining base oil is sprayed into the mixing kettle 2 in the form of atomization. On the one hand, it can directly mix with the additive dust through the ejection of the oil mist, so that the additive directly mixes with the oil mist in the form of fine particles and then dissolves in the base oil in the mixing kettle 2, further reducing the agglomeration situation. At the same time, the oil mist has a greater density than the dust and is more likely to settle after combining with the dust, thus settling downward.

[0096] S4. Vibrate the side wall of the mixing kettle 2 until the raw materials adhered to the inner wall are shaken off.

[0097] The way of mixing the raw material spray and the oil mist will inevitably cause the mixed material to adhere to the inner wall of the mixing kettle 2, which is not convenient for cleaning. By continuously transmitting vibration to the side wall of the mixing kettle 2, the materials adhered to the inner wall of the mixing kettle 2 are shaken off.

[0098] Next, specifically describe the working principle of this food-grade lubricant mixing device.

[0099] As Figures 1 - 10 shown, the raw materials are put in according to a certain ratio. The specific putting positions are as follows: Open the valve on the circulation pipe and add part of the base oil to the primary feeding hopper 6. The base oil in the primary feeding hopper 6 directly flows into the mixing kettle 2, and add non-powdery additive to the mixing kettle 2. Add the remaining base oil to be put into the secondary feeding hopper 7, and add the powdery additive to the powder cylinder 4. Among them, the amount of the base oil put into the secondary feeding hopper 7 should be determined according to the amount of the powder additive put into the powder cylinder 4 to ensure that the generation time of the oil mist is longer than the atomization ejection time of the powder. Provide positive pressure for the spray gun 3 through an external air pump. The powder is ejected from the two atomizing nozzles through the U-shaped pipe 11 under the action of the air pressure, so that the powder additive is atomized and sprayed into the interior of the mixing kettle 2.

[0100] At the same time as the above operations, by controlling the oil pump 14 to work, the base oil in the secondary feeding hopper 7 is pumped out to the shunt pipe 13 and ejected from the atomizing nozzles at both ends, thus forming an oil mist. After the oil mist is mixed with the powder additive, it settles downward and melts into the base oil in the mixing kettle 2.

[0101] Meanwhile, control the operation of the first motor 10 to drive the rotation of the rotating shaft 8, causing the double - helix ribbon 9 to rotate. The outer helix converges the material from both sides to the middle, so that the atomized additive powder falling on both sides is pushed towards the central position and collides with each other after gathering at the central position, thus achieving sufficient mixing. The inner helix transports the material from the center to both sides, forming a convective mixing, which can greatly improve the mixing effect in cooperation with the atomizing component;

[0102] When a relatively large amount of lubricant needs to be produced at one time, since there is a large amount of mixed material, which is more than four - fifths of the height of the double - helix ribbon 9. At this time, the base oil will start to submerge the rotating frame 12. The flipping rate of the double - helix ribbon 9 on the base oil is affected. Since the rotating frame 12 contacts the base oil and rotates, when the raw material is too full, part of the rotating frame 12 will be submerged. By controlling the operation of the second motor 34 to drive the rotation of the rotating frame 12, the raw material will be discharged to the side away from the baffle 19, so that the raw material will be discharged in a direction perpendicular to the feeding direction of the mixing component, thus continuously absorbing the raw material powder;

[0103] Meanwhile, when the powder is sprayed into the mixing kettle 2, the air passes through the filter screen 16 and then is discharged outward through the hollow shaft 17, the rotary joint 18 and the primary feeding hopper 6, and the filter screen 16 can flip along with the rotating frame 12. When the amount of base oil is sufficient to contact the rotating frame 12, the powder raw material adhered to the filter screen 16 will come into contact with the base oil and mix along with the flipping of the rotating frame 12; in the case of less base oil, through the high - speed rotation of the rotating frame 12, the powder raw material contaminated on the filter screen 16 will be shaken off; in the case of more base oil, the base oil and the powder additive will adhere to the filter screen 16, and the base oil will be thrown out during the process to assist in mixing until the mixed material is lower than the height of the bottom of the rotating frame 12. After that, all the mixed material adhered to the filter screen 16 will be shaken off;

[0104] During the rotation of the rotating shaft 8, it will drive the rotation of the transmission shaft 20 through belt and pulley transmission, and then drive the friction component to rotate. And through the friction during the relative rotation of the friction component with the driven friction block 27, vibration is generated, and through the transmission of the movable rod, the impact block 25 vibrates and continuously transmits to the mixing kettle 2, causing the mixing kettle 2 to vibrate, so as to shake off the material adhered to the inner wall of the mixing kettle 2 and prevent the raw material from adhering to the inner wall of the mixing kettle 2.

[0105] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A food grade lubricant mixing device, characterized in that: include: A base (1); a mixing kettle (2) is fixedly connected to the top of the base (1); A mixing component, the mixing component is arranged inside the mixing kettle (2), and the mixing component is used to mix the raw materials; an atomizing component, the atomizing component being arranged on one side of the mixing kettle (2) and having an output position located inside the mixing kettle (2), the atomizing component being used to atomize the powdered additive and then spray it into the mixing kettle (2); A mounting frame (5), the mounting frame (5) being fixedly connected to one side of the mixing kettle (2), and the mounting frame (5) being fixedly connected to a primary feeding hopper (6) and a secondary feeding hopper (7); An auxiliary sedimentation component, the auxiliary sedimentation component is arranged inside the mixing kettle (2), and the auxiliary sedimentation component is used to assist the atomized powder to settle downwards; The auxiliary sedimentation component comprises a shunt pipe (13), the shunt pipe (13) penetrates and is connected between two sides of the mixing kettle (2), one end of the shunt pipe (13) is provided with a plug, an oil pump (14) is fixedly installed on a side of the mixing kettle (2) close to the mounting frame (5), the output end of the oil pump (14) is connected to an end of the shunt pipe (13) away from the plug, the input end of the oil pump (14) is connected to the bottom of the secondary feeding hopper (7) through a pipeline, and two atomizing nozzles are provided on the shunt pipe (13); The atomizing component comprises a spray gun (3), the spray gun (3) being fixedly mounted on one side of the mixing kettle (2), the spray gun (3) being provided with a powder barrel (4) for containing a powdered additive, the interior of the mixing kettle (2) being provided with a U-shaped tube (11), both ends of the U-shaped tube (11) being fixedly connected with an atomizing nozzle, the output end of the spray gun (3) extending into the interior of the mixing kettle (2) and being connected to the center of the U-shaped tube (11) via a pipeline, and the spray gun (3) being connected to an external air pump via a pipeline; A rotating frame (12) is rotatably connected between the inner walls of the mixing kettle (2); a second motor (34) is fixedly mounted on the top of the base (1); one end of the central axis of the rotating frame (12) extends to the outside of the mixing kettle (2) and is connected to the output end of the second motor (34) via a belt and a pulley transmission; a plurality of wing plates (15) are equidistantly fixedly connected to the side walls of the rotating frame (12); and a shield (19) is fixedly connected between the two sides of the inner wall of the mixing kettle (2); The central axis of one side of the rotating frame (12) is set as a hollow shaft (17), one end of the hollow shaft (17) extends to the outside of the mixing kettle (2) and is fixedly connected to a rotating joint (18), a connecting pipe is fixedly connected between the end of the rotating joint (18) away from the hollow shaft (17) and the bottom of the primary feeding hopper (6), and a valve is installed on the connecting pipe. The interior of the primary feeding hopper (6) is connected to the interior of the mixing kettle (2) through the connecting pipe, the rotating joint (18) and the hollow shaft (17), and a plurality of frame grooves are opened on the side wall of the rotating frame (12), and the interior of each frame groove is fixedly connected to a filter screen (16).

2. A food grade lubricant mixing device according to claim 1, characterized in that: The mixing component comprises a rotating shaft (8) rotatably connected between the inner walls of the mixing kettle (2), one end of the rotating shaft (8) extending to the outside of the mixing kettle (2), a double-helical spiral ribbon (9) is arranged on the outer side of the rotating shaft (8), the double-helical spiral ribbon (9) is arranged as a double-layer structure with inner and outer spiral directions opposite to each other, and the front view of the double-helical spiral ribbon (9) is an axisymmetric structure, and a first motor (10) and a gear box are fixedly mounted on the top of the base (1), and the output end of the first motor (10) is transmission-connected to the rotating shaft (8) through the gear box.

3. A food grade lubricant mixing device according to claim 2, characterized in that: The two sides of the mixing kettle (2) are symmetrically fixedly connected with elastic plates (24), one end of the elastic plate (24) away from the mixing kettle (2) is fixedly connected with an impact block (25), the impact block (25) contacts the side wall of the mixing kettle (2), and the side of the impact block (25) away from the elastic plate (24) is fixedly connected with a movable plate (26), and one side of the movable plate (26) is provided with a driven friction block (27); the side of the mixing kettle (2) away from the mounting frame (5) is symmetrically rotatably connected with two transmission shafts (20), and the two transmission shafts (20) are both connected to the rotating shaft (8) through belts and pulleys; a friction assembly is provided on the outer side of the transmission shaft (20), and a concave surface in contact with the side wall of the friction assembly is provided on the side of the driven friction block (27) away from the movable plate (26), and the concave surface and the side wall of the friction assembly are both provided as rough surfaces; a tension spring (28) is suspended between the side of the movable plate (26) close to the driven friction block (27) and the mixing kettle (2).

4. A food grade lubricant mixing device according to claim 3, characterized in that: The friction assembly comprises two semi-cylinders (21) connected to each other by screws and a connecting piece, an alignment groove (22) is provided between the two adjacent sides of the semi-cylinders (21), a protrusion (23) used in conjunction with the alignment groove (22) is symmetrically fixedly connected to the outer side of the transmission shaft (20), and the protrusion (23) and the alignment groove (22) are in contact with each other; the driven friction block (27) is connected to the movable plate (26) by screws.

5. A food-grade lubricant mixing device according to claim 4, characterized in that: The tops of the primary feeding hopper (6) and the secondary feeding hopper (7) are both hingedly connected with a top cover (32), a through slot is provided between the two end surfaces of the top cover (32), and a dustproof net (33) is fixedly connected inside the through slot.

6. A food-grade lubricant mixing method, applicable to a food-grade lubricant mixing device as claimed in any one of claims 1 to 5, characterized in that: S1. Take appropriate amounts of base oil and additives according to the ratio, and divide the base oil into two parts with different dosages, and add the base oil and non-powdered additives with a larger dosage directly into the mixing kettle (2); S2, atomizing the powdered additive and spraying it evenly into the mixing kettle (2); S3, atomizing a portion of the base oil with a smaller dosage in step S1, and spraying it into the housing, and uniformly mixing it with the atomized additive, and the mixture settles downward and mixes with the base oil; S4. Vibrate the side wall of the mixing kettle (2) until the raw materials adhering to the inner wall are shaken off.

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