A method for quickly homogenizing rice bran oil soapstock

Abstract

The present application relates to a kind of methods for the quick homogenization of rice bran oil soapstock, comprising the following steps: S1: arranging circulation system;First set a tank, spray drainage mechanism is set in the tank, circulation pump is set outside the tank, spray drainage mechanism includes spray pipe and dispersion disc;Spray pipe includes outer tube and inner tube, circulation pump forms circulation inside and outside tank by circulation pipeline;Multiple drainage rib plates are set on the inner wall of the upper portion of outer tube;S2: soapstock feeding;Soapstock enters into the tank by the soapstock inlet, until the liquid amount reaches the set amount;S3: soapstock homogenization circulation;When the liquid amount reaches the set amount, circulation pump and motor start, soapstock is sprayed at high speed into outer tube by inner tube, then sprayed at high speed into the inner surface of dispersion disc from outer tube, and soapstock is reflected back into the tank by dispersion disc;Reciprocating circulation lasts more than half an hour;S4: standing discharge: close circulation pipeline, the tank is stationary for 5-10 minutes, and soapstock is discharged.The present application greatly improves the homogenization processing efficiency of soapstock, and also ensures the processing quality.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of soapstock homogenization, and particularly relates to a method for rapidly homogenizing rice bran oil soapstock. BACKGROUND

[0002] Rough rice bran oil is an important raw material for producing oryzanol, so the factory will add alkali to the rough rice bran oil when producing oryzanol, so as to neutralize the free fatty acid in the rough rice bran oil and generate soapstock, and then the soapstock is acidified to obtain an acidified liquid containing fatty acid and wastewater containing sodium sulfate, and oryzanol is left in the fatty acid.

[0003] In order to ensure the efficiency of the acidification reaction, the soapstock needs to be homogenized in advance, and the existing soapstock homogenization process generally has two ways, one is to stir in the barrel through stirring blades to uniformly mix, and the other is to drive the soapstock in the homogenization tank to continuously reciprocate through a circulating pump to achieve the purpose of mixing. Although the two ways can achieve the purpose of uniform mixing to a certain extent, they still cannot meet the requirements when facing higher process requirements and higher processing efficiency, such as low output rate and longer homogenization time. SUMMARY

[0004] In order to solve the above technical problems, the application provides a method for rapidly homogenizing rice bran oil soapstock, which continuously circulates homogenization by interweaving two ways of circulation and impact reflection, one is to drive the soapstock fluid circulation flow by a circulating pump, and the other is to guide the fluid in the direction of jetting by improving the jetting pressure while circulating, so that the fluid is mixed or even atomized in the form of a central jet column and jet branches around the jet column and in a more dispersed direction, and then returns to the tank and is added to the circulation flow process, and reciprocates continuously, so that the uniformity of the soapstock fluid is greatly improved, and the time required for homogenization processing is further reduced.

[0005] In order to achieve the above purpose, the application adopts the following technical solutions:

[0006] A method for rapidly homogenizing rice bran oil soapstock, comprising the following steps:

[0007] S1: arranging a circulating system; first, a tank is set, a jet flow guide mechanism is set in the tank, a circulating pump is set outside the tank, a soap foot inlet and a soap foot outlet are respectively set at the upper and lower ends of the tank, the jet flow guide mechanism comprises a jet pipe and a dispersion disc set directly above the jet pipe, a motor is arranged at the top outside the tank, and the motor is connected to the dispersion disc to drive the dispersion disc to rotate during work; at least one meter of interval is left between the top of the jet pipe and the lowest part of the dispersion disc, the jet pipe comprises an outer pipe and an inner pipe set in the middle and lower part of the inner pipe, the outer pipe is fixedly connected to the inner wall of the tank through a support, the circulating pump forms circulation inside and outside the tank through a circulating pipeline, one end of the circulating pipeline is connected to the soap foot outlet, the other end of the circulating pipeline extends into the tank and is connected to the inner pipe, so that the axis of the inner pipe coincides with the axis of the outer pipe; a plurality of flow guide rib plates are arranged on the upper inner wall of the outer pipe, each flow guide rib plate is longitudinally arranged in the outer pipe; in the radial direction, the flow guide rib plates extend from the inner wall of the jet pipe to the center position of the jet port near the upper end of the outer pipe and are spaced apart from each other, the flow guide rib plates divide the jet port into first fluid channels formed between two adjacent flow guide rib plates and a second fluid channel located at the center position of the jet port; the end of the flow guide rib plate at the center position of the jet port forms a sharp end, the sharp end is a flow guide rib line arranged from top to bottom, the flow guide rib line gradually approaches the inner wall of the outer pipe from top to bottom and transitions in an arc shape.

[0008] S2: soap foot feeding; the soap foot enters the tank through the soap foot inlet until the liquid amount reaches the set amount;

[0009] S3: soap foot homogenization circulation; when the liquid amount reaches the set amount, the circulating pump and the motor are started, the soap foot is sprayed at high speed into the outer pipe through the inner pipe, and then sprayed at high speed from the outer pipe to the inner surface of the dispersion disc, the high-speed rotating dispersion disc reflects the soap foot back into the tank; the reciprocating circulation lasts for more than half an hour;

[0010] S4: standing and discharging; the circulating pipeline is closed, the tank is statically placed for 5-10 minutes, and the soap foot is discharged.

[0011] As a preferred, a heating step is further included, that is, a heater is further arranged outside the circulating pipeline, when the liquid amount reaches one third of the set amount, the heater is started to heat, and the soap foot is heated to a preset temperature.

[0012] The fluid can be jetted at high pressure by setting the flow guide rib plate in the upper part of the jet pipe to reduce the jet port area and increase the jet pressure and pressure, at the same time, the arrangement of the flow guide rib plate separates the jet port into the first fluid channel formed between two adjacent flow guide rib plates and the second fluid channel located at the center position of the jet port, which further expands the jet direction of the jet port, so that the jet angle and direction are wider, which is more beneficial to the impact and dispersion of the fluid; further, the flow guide rib line formed at the end of the flow guide rib plate at the center position of the jet port, the flow guide rib line gradually approaches the inner wall of the jet pipe from top to bottom and transitions in an arc shape, so that the fluid below the flow guide rib plate is further smoothly guided, which is beneficial to the extraction of the jet port.

[0013] As a preferred, the heater is a tube heater, and the tube heater is connected with steam to heat the fluid in the circulation pipe.

[0014] As a preferred, in S1, the dispersion disc is umbrella-shaped, and a plurality of annular discs are arranged on the inner surface of the dispersion disc from top to bottom, the annular discs are horizontally arranged, and the diameters of the annular discs gradually increase from top to bottom, and the annular transition steps are formed between adjacent two annular discs. The inner surface of the dispersion disc is formed in a stepped shape, and a concave-convex slope is formed, which not only increases the impact reflection area of the inner surface of the dispersion disc, but also forms an edge at the junction of the annular discs, so that the soap foot fluid impacting each part of the annular disc can be further dispersed, and the high-intensity impact can achieve refinement, even atomization, so that the mixing is more uniform; at the same time, such arrangement makes the fluid reflection angle wider, and the fluids cross and collide with each other in the reflection process, achieving the purpose of uniform mixing.

[0015] As a preferred, the outer diameter of the upper annular disc is equal to the inner diameter of the lower annular disc. In this way, the edge at the junction of the annular discs is more sharp, and the impact and collision with the soap foot fluid are more intense, which is more conducive to scattering and reflection.

[0016] As a preferred, the dispersion disc is umbrella-shaped, and a plurality of ribs are uniformly arranged on the inner surface of the dispersion disc in the circumferential direction, the ribs extend from the top center of the dispersion disc to the lower end edge of the dispersion disc from top to bottom, and each rib is inclined, and the edge of the rib away from the inner surface of the dispersion disc forms a sharp edge. As another way, the inner surface of the dispersion disc is uniformly distributed with a plurality of inclined ribs, and the existence of the ribs can also increase the undulating degree of the inner surface, so that the inner surface of the dispersion disc is uneven, the impact complexity is increased, and the reflection direction is increased, and the inclination of the ribs also makes the ribs form a function similar to a blade, which utilizes the rotation of the blade to realize the impact and stirring or re-impact of the fluid after reflection, and improves the uniform mixing effect.

[0017] As a preference, the prongs form extensions close to the end of the dispersion disc, said extensions being attached to the inner surface of the dispersion disc and being fixed by means of screws. In this way, the prongs are attached to the inner surface of the dispersion disc.

[0018] As a preference, the prongs are inclined at an angle of 15-45 degrees with respect to the inner surface of the dispersion disc. This facilitates the high-speed impact of the fluid and at the same time creates the effect of a vane.

[0019] As a preference, the bottom of the outer tube is also provided with a flow guiding unit, said flow guiding unit being a plurality of flow guiding grooves evenly recessed in the inner side wall of the lower part of the outer tube in the circumferential direction, the width and depth of the flow guiding grooves gradually decreasing from bottom to top along the length direction of the jet tube, and a smooth transition being formed between the top of the flow guiding grooves and the inner wall of the outer tube. The flow guiding unit is provided with flow guiding grooves, which moderately enlarges the liquid inlet area of the bottom of the jet tube, so that the fluid can be more conveniently introduced. The width and depth of the flow guiding grooves gradually decrease from bottom to top along the length direction of the jet tube, and a smooth transition is formed between the top of the flow guiding grooves and the inner wall of the outer tube, so that the fluid can enter more quickly and without obstruction.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The fluid homogenizing device of the present application realizes continuous circulation homogenization by circulation and impact reflection, and the two modes are performed synchronously. Specifically, the first is to use a circulating pump to drive the circulation of the soapstock fluid, the second is to use a jet tube to realize high-speed jetting and impact reflection on the dispersion disc, and then return to the tank for reciprocating circulation. That is, the fluid is dispersed or atomized again by impact reflection while circulating, and then returns to the tank and joins the circulation process, which greatly improves the uniformity of the soapstock fluid and further improves the efficiency of homogenization.

[0022] More importantly, the flow guide rib plate is arranged in the upper part of the jet tube to reduce the area of the jet port, increase the jetting pressure and pressure, so that the fluid can be jetted at high pressure. At the same time, the arrangement of the flow guide rib plate divides the jet port into a first fluid passage formed between every two adjacent flow guide rib plates and a second fluid passage located at the center position of the jet port, which further expands the jetting direction of the jet port, making the jetting angle and direction wider, and further facilitating the impact and dispersion of the fluid. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the internal structure of the jet flow guide mechanism in Example 1;

[0024] Figure 2 is a schematic diagram of the three-dimensional structure of the jet flow guide mechanism in Example 1;

[0025] Figure 3This is a schematic diagram of the planar structure of the injection port of the outer tube of the injection pipe;

[0026] Figure 4 This is a sectional view of the area below the injection pipe in Example 1;

[0027] Figure 5 This is a schematic diagram of the planar structure of the guide vane inside the jet pipe in Example 1;

[0028] Figure 6 This is a perspective view of the obliquely cut state of the injection pipe in Example 1;

[0029] Figure 7 This is a schematic diagram of the specific structure of the fluid homogenizing device in Example 1;

[0030] Figure 8 This is a plan view of the inner surface of the dispersion disk in Example 2;

[0031] Figure 9 This is a schematic diagram of the connection structure between the prism and the inner surface of the dispersion disk in Example 2;

[0032] Figure 10 This is a flowchart of the present invention. Detailed Implementation

[0033] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] Example 1: A method for rapid homogenization of rice bran oil for soap making in this example, the steps are as follows: Figure 10 As shown, first arrange the circulation system, which is as follows: Figure 7 As shown, it includes a tank 6, which can be called a homogenizing tank, such as... Figures 1-6 As shown, a jetting and diversion mechanism is provided inside the tank. The jetting and diversion mechanism includes a jetting pipe and a dispersing disk 5 located directly above the jetting pipe. The dispersing disk 5 is driven to rotate by a motor 7. The jetting pipe includes an outer pipe 1 and an inner pipe 68 located in the lower middle part of the outer pipe 1. The axis of the inner pipe 68 coincides with the axis of the outer pipe 1.

[0035] A soap inlet 61 is provided at the upper end of the tank body 6, and a soap outlet 62 is provided at the bottom of the tank body 6. A circulation pump 63 is also provided between the soap outlet 62 and the side wall of the tank body. The circulation pump 63 is connected to the soap outlet 62 via a first pipe 64, and the circulation pump 63 is connected to a heater 66 via a second pipe 65. The heater 66 introduces steam for heating through a steam pipe 67. The second pipe 65 extends into the tank body 6 and connects to an inner pipe 68. A nozzle 2 is provided at the head end of the inner pipe 68. The outer pipe 1 is hollow inside and runs vertically through the tank. The diameter of the outer pipe 1 gradually decreases from bottom to top along the height direction. A flow guide hood 4 is also provided at the bottom end of the outer pipe 1 to assist in guiding the fluid into the outer pipe 1, and the inner diameter of the flow guide hood 4 gradually decreases from bottom to top.

[0036] Specifically, the nozzle 2 is positioned in the middle of the lower part of the outer tube 1; a guiding mechanism 3 for adjusting the fluid pressure inside the outer tube 1 is formed inside the outer tube 1. The guiding mechanism 3 includes a spray unit 302 located at the top spray port of the outer tube 1. The spray unit 302 consists of multiple flow guiding prisms 302a uniformly connected to the upper inner wall of the outer tube 1. Each flow guiding prism 302a is longitudinally arranged inside the outer tube 1. Specifically, the flow guiding prism 302a is integrally formed with the outer tube 1. The cross-section of the flow guiding prism 302a is fan-shaped, and the arc-shaped surface of the flow guiding prism 302a is located on the inner wall of the outer tube 1 and coincides with the inner wall of the outer tube 1.

[0037] In the radial direction, the guide prisms 302a extend from the inner wall of the outer tube 1 to a position near the center of the injection port and are spaced apart from each other. The guide prisms 302a divide the injection port into a first fluid channel 302b formed between two adjacent guide prisms 302a and a second fluid channel 302c located at the center of the injection port; as Figure 1 , Figure 5 As shown, the end of the flow guiding prism 302a located at the center of the injection port forms a tip, and the tip is a flow guiding prism 302d arranged from top to bottom. The flow guiding prism 302d gradually approaches the inner wall of the outer tube 1 from top to bottom and has an arc transition.

[0038] Furthermore, it also includes a drainage unit 301 located at the bottom of the outer tube 1, wherein the drainage unit 301 consists of multiple drainage grooves 301a uniformly recessed along the circumferential direction on the lower inner wall of the outer tube 1; for example Figure 4 As shown, the width and depth of the drainage groove 301a gradually decrease from bottom to top along the length of the outer tube 1, and a smooth transition is formed between the top of the drainage groove 301a and the inner wall of the outer tube 1. The boundary line between the top of the drainage groove 301a and the inner wall of the outer tube 1 is an arc.

[0039] The inner surface of the dispersion disk 5 is formed with a reflective surface for receiving the fluid ejected from the injection port, and the dispersion disk 5 is configured to disperse the fluid and reflect it evenly by high-speed rotation. In this embodiment, the dispersion disk 5 is umbrella-shaped, and multiple annular disks 5a are arranged horizontally on the inner surface of the dispersion disk from top to bottom. The diameter of the annular disks 5a gradually increases from top to bottom, and an annular transition step 5b is formed between two adjacent annular disks 5a.

[0040] Further, the outer diameter of the upper annular disc is equal to the inner diameter of the lower annular disc. Of course, the inner diameter of the lower annular disc can also be larger than the outer diameter of the upper annular disc. The annular disc 5a can be a hollow body, and the part of the annular disc in contact with the inner surface of the dispersion disc is welded and fixed. Of course, the annular disc 5a can also be a solid body, which can be integrally formed with the dispersion disc 5.

[0041] The fluid in the embodiment is a soapstock liquid, which contains 25-33% organic matters such as fatty acids, and the rest is water and sodium ions. In the specific work, the soapstock enters the tank 6 through the soapstock inlet 61. When the liquid quantity reaches one third of the set quantity, the heater 66 starts heating, and the circulating pump 63 automatically starts. The soapstock is sprayed at high speed into the outer pipe 1 through the nozzle 2. The negative pressure zone is formed below the nozzle 2, which also attracts the soapstock in the tank 6 upwards and sprays it from the spray port. Due to the existence of the drainage groove 301a, the liquid inlet area is increased, and the soapstock is more easily guided into the outer pipe 1. Similarly, the existence of the drainage rib plate 302a reduces the area of the spray port, improves the spray pressure, and guides the fluid in the spray direction, so that the fluid forms a central spray column and a spray branch around the spray column and in a more dispersed direction.

[0042] The rapid rotation of the dispersion disc 5 can fully disperse the soapstock sprayed onto the reflecting surface 5a, and the blade 5b can further disperse the just-reflected soapstock in the circumferential direction, and then drop into the tank 6, so that the soapstock liquid is thoroughly dispersed and reorganized. Such continuous circulation, dispersion and reorganization can greatly improve the homogenization effect of the soapstock and save the homogenization time of the soapstock.

[0043] Embodiment 2: as shown in Figure 8 , 9 The dispersion disc 5 is umbrella-shaped, and a plurality of ribs 8 are uniformly arranged on the inner surface of the dispersion disc 5 in the circumferential direction. The rib 8 extends from the top center of the dispersion disc to the lower end edge of the dispersion disc from top to bottom, and each rib 8 is arranged obliquely relative to the inner surface of the dispersion disc. The edge of the rib 8 away from the inner surface of the dispersion disc forms a sharp edge 8a. The angle of the rib 8 relative to the inner surface of the dispersion disc 5 is 15-45 degrees. The end of the rib 8 close to the dispersion disc 5 forms an extension 8b, which is attached to the inner surface of the dispersion disc 5 and fixed by screws or welding.

[0044] Similarly, when rotating, the existence of the fins 8 can also increase the degree of the inner surface undulation, so that the inner surface of the dispersion disc 5 is uneven, the impact complexity is increased, and the reflection direction is changed. At the same time, the inclination of the fins 8 also makes the fins themselves form a function similar to a blade, which uses the rotation of the blade to realize the impact and the stirring or re-impact of the fluid after the reflection of the impact, thereby improving the uniform mixing effect.

[0045] The above description in the specification only illustrates the application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as they do not deviate from the content of the specification or exceed the scope defined by the claims, which should belong to the protection scope of the application.

Claims

1. A method for rapid homogenization of rice bran oil soapstock characterized by It comprises the following steps: S1: arranging a circulating system; first, a tank is arranged, a jet flow guide mechanism is arranged in the tank, a circulating pump is arranged outside the tank, a soap foot inlet and a soap foot outlet are arranged at the upper and lower ends of the tank respectively, the jet flow guide mechanism comprises a jet pipe and a dispersion disc arranged directly above the jet pipe, a motor is arranged at the top outside the tank, and the motor is connected to the dispersion disc to drive the dispersion disc to rotate during work; there is at least one meter of interval between the top of the jet pipe and the lowest part of the dispersion disc, the jet pipe comprises an outer pipe and an inner pipe arranged in the middle and lower part of the inner pipe, the outer pipe is fixedly connected to the inner wall of the tank through a support, and the circulating pump forms circulation inside and outside the tank through a circulating pipeline, wherein one end of the circulating pipeline is connected to the soap foot outlet, the other end of the circulating pipeline extends into the tank and is connected to the inner pipe, so that the axis of the inner pipe coincides with the axis of the outer pipe; a plurality of drainage rib plates are arranged on the upper inner wall of the outer pipe, and each drainage rib plate is longitudinally arranged in the outer pipe; in the radial direction, the drainage rib plates extend from the inner wall of the jet pipe to the center position of the jet port near the upper end of the outer pipe and are spaced apart from each other, the drainage rib plates divide the jet port into first fluid channels formed between every two adjacent drainage rib plates and a second fluid channel located at the center position of the jet port; the end of the drainage rib plate at the center position of the jet port forms a sharp end, and the sharp end is a guide rib line arranged from top to bottom, which gradually approaches the inner wall of the outer pipe from top to bottom and transitions in an arc shape; S2: soap foot feeding; the soap foot enters the tank through the soap foot inlet until the liquid amount reaches the set amount; S3: homogeneous circulation of soap foot; when the liquid amount reaches the set amount, the circulating pump and the motor are started, the soap foot is sprayed at high speed into the outer pipe through the inner pipe, and then sprayed at high speed from the outer pipe into the inner surface of the dispersion disc, and the high-speed rotating dispersion disc reflects the soap foot back into the tank; the reciprocating circulation lasts for more than half an hour; S4: standing and discharging: closing the circulating pipeline, and standing the tank for 5-10 minutes to discharge the soap foot.

2. The method for quick homogenization of rice bran oil soapstock according to claim 1, characterized by: It also comprises a heating step, i.e. a heater is arranged outside the circulating pipeline, and when the liquid amount reaches one third of the set amount, the heater is started to heat the soap foot to a preset temperature.

3. The method for quick homogenization of rice bran oil soapstock according to claim 2, characterized by: The heater is a tube heater, and steam is introduced into the tube heater to heat the fluid in the circulating pipeline.

4. The method for quick homogenization of rice bran oil soapstock according to claim 1, characterized by: A drainage unit is further arranged at the bottom of the outer pipe, the drainage unit is a plurality of drainage grooves uniformly recessed in the inner side wall of the lower part of the outer pipe in the circumferential direction, the width and depth of the drainage grooves gradually decrease from bottom to top along the length direction of the jet pipe, and a smooth transition is formed between the top of the drainage grooves and the inner wall of the outer pipe.

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