Squeezing system and squeezing method for edible oil
By setting up brine pipes and circulation pipes in the spiral oil press, circulating hot brine, and opening water outlet holes inside the spiral screw spray hot brine, the problems of difficulty in cake production, low oil output rate, excessive slag removal and high temperature damage to nutrients caused by high temperature during frequent use of the spiral oil press, achieving more efficient oil pressing and better oil quality.
Patent Information
- Application Number
- CN202411800843.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-28
AI Technical Summary
In frequent use, existing spiral oil presses have problems with cake difficulties, low oil yield, excessive slag removal and high temperature damage to nutrients.
By setting up a salt water pipe and a circulation pipe inside the press screw, the hot salt water is circulated and circulated with a salt water pump to achieve a balanced transfer of high temperature inside the press screw, and a water outlet hole is opened inside the press screw to spray hot salt water to soften the raw materials to improve oil output.
It effectively solves the problems of difficulty in producing cakes, low oil yield and excessive slag, while reducing the damage to nutrients by high temperatures, improving oil pressing efficiency and oil quality.
Smart Images
Figure CN119704760A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of edible oil pressing, and in particular to an edible oil pressing system and a pressing method. Background Art
[0003] At present, the traditional oil pressing method can no longer meet the needs of people's lives, and mechanical oil pressing has gradually emerged in the public eye. Mechanical oil pressing includes two types: hydraulic oil press and screw oil press. The hydraulic oil press uses hydraulic pressure to squeeze the oil to produce oil. Because the hydraulic oil press uses great pressure to work on the oil to achieve oil output, the oil produced by the hydraulic oil press is of high quality. The hydraulic oil press is used in high-quality edible companies. The screw oil press is widely used in various small-scale civilian oil pressing markets due to its advantages such as high oil output rate and convenience. It is also an oil pressing machine that people can often see in the market. However, in the frequent daily use, the problems of the screw oil press gradually exposed some problems, as shown below:
[0004] First, individual business owners do not learn the new equipment thoroughly enough. When the screw oil press is working, the completely dehydrated raw materials are squeezed. As the screw machine continues to rotate to squeeze the material, the material gradually settles and adheres to the inside of the screw machine. Finally, the raw material is not discharged smoothly after being squeezed, causing the machine to rotate difficultly and the oil after squeezing cannot be discharged smoothly with the rotation.
[0005] Second, individual businesses put in raw materials or completely dehydrated raw materials as soon as they start the screw oil press. When the internal temperature of the screw oil press is low when it is just started, the low temperature and low water content are not enough to soften the raw materials, and the extrusion is not sufficient, so that the amount of oil obtained does not meet expectations.
[0006] Third: With the frequent use of screw oil presses, the raw materials are continuously squeezed under high temperature and high pressure, and the high temperature cannot be removed well. The long-term thermal expansion gradually acts on the pressing bars, causing the gaps between the pressing bars to gradually expand, or the continuous action of high temperature reduces the quality of the oil cake. The nutrients in the obtained crude oil are continuously heated at high temperature, which is not conducive to the retention of nutrients.
[0007] In order to solve the above problems and ensure the oil pressing efficiency of individual households and the safety of people's edible oil, an edible oil pressing system and pressing method are proposed. Summary of the invention
[0008] The purpose of the present invention is to solve the problems of difficulty in discharging cakes, low oil yield, excessive residue leakage and damage to nutrients caused by high temperature in the frequent use of oil presses. A system and method for pressing edible oil are provided. A brine pipeline and a circulation pipe are arranged to transfer the high temperature inside the pressing screw to preheat the peanuts when they enter the press, and the brine pipeline path is covered on the high-temperature gathering tie strips to solve the problems of excessive residue leakage and damage to nutrients caused by high temperature. A circulation pipe and a water outlet are opened inside the pressing screw to spray hot brine to fully soften the raw materials to solve the problems of difficulty in discharging cakes and low oil yield.
[0009] In order to achieve the above technical objectives, the present invention provides the following technical solutions:
[0010] A system for squeezing edible oil comprises a frame, a pressing cage, a pressing screw, a feeding assembly and a first motor, wherein the pressing cage is fixedly mounted on the frame, the pressing screw is rotatably mounted inside the pressing cage, the feeding assembly is fixedly mounted on one side of the top end of the pressing cage, the first motor is mounted on one side of the frame, a flow pipe is provided inside the pressing screw, and the flow pipe penetrates the pressing screw, water outlet holes are symmetrically provided on both sides of the flow pipe, a spring valve is mounted inside the water outlet hole, one end of the flow pipe is connected to the bottom end of the feeding assembly, and the other end of the flow pipe is connected to a salt water pump, the salt water pump is connected to the top end of the feeding assembly and communicates with the flow pipe at the bottom of the feeding assembly, and the flow direction in the flow pipe is from the thick end section of the pressing screw to the thin end.
[0011] Preferably, the pressing cage includes a fixing ring, a first circular hole, and pressing bars, wherein the first circular hole is provided at a symmetrical position on the upper half of the fixing ring, the pressing bars are fixedly installed inside the fixing ring, and the pressing bars are distributed in a circular array, and the fixing ring is divided into two parts, an upper part and an lower part, and the two parts cooperate to install and fix the pressing bars.
[0012] In the above scheme, the first circular hole is opened for the installation of the outer brine flow. At the same time, the first circular hole is opened at the top of the fixed ring and at a symmetrical position for installation positioning to ensure that the staff reduces installation errors during installation. The top of the first circular hole where the hot air is concentrated effectively heats the brine in the brine return pipe and absorbs the heat of the pressing strips.
[0013] Preferably, the squeezing screw includes a body, spiral squeezing blades, a cake cleaning rack, and a limit handle. The flow pipe is opened on the center line inside the body, the water outlets are symmetrically arranged on both sides of the flow hole, the spiral squeezing blades are fixedly installed on the outside of the body, the cake cleaning rack is rotatably installed on the thick end of the body, the limit handle is installed on one side of the cake cleaning rack, and the spring valve includes a conical head and a connecting spring, and the connecting spring is installed between two opposite conical heads.
[0014] In the above scheme, when it starts working, hot brine enters the body through the circulation hole, heats the body and achieves the effect of a mill. The body heats the air in the space where it is located, achieves the effect of heating the internal space and provides good temperature conditions for oil extraction. During operation, the brine starts to flow from left to right in the body, and the high heat on the left is transferred to the right through the brine, so as to achieve temperature balance on the left and right sides of the body. At the same time, the high temperature generated during squeezing on the left side is reduced, thereby reducing the damage of high temperature to nutrients. A circulation pipe is provided inside the body for the flow of brine, and water outlet holes are provided on both sides of the circulation pipe symmetrically. A spring valve is installed inside the water outlet hole. When not working, the spring valve is installed to ensure that the brine only passes through the circulation pipe to achieve sufficient heating of the body. When working, the body rotates to squeeze the raw material, the raw material squeezes the spring valve, and the conical head moves inward, and the brine is sprayed out from the circulation pipe along the water outlet hole, that is, when the raw material is not squeezed, the brine is used to heat the body and the mill. When the raw material is squeezed, the brine is used to soften the raw material and balance the high temperature generated by squeezing.
[0015] Preferably, the feeding assembly includes a Y-shaped feeding frame, a fixed shaft frame, a cross bearing frame, and a conveying shaft. The fixed shaft frame is fixedly installed on the top of the Y-shaped feeding frame, the cross bearing frame is fixedly installed on the bottom of the Y-shaped feeding frame, the conveying shaft is rotatably installed on the cross bearing frame, and the other end is rotatably connected to the fixed shaft frame. A belt drive motor is installed at one end of the conveying shaft close to the fixed shaft frame, and pipe storage holes are opened at the center of the top and bottom ends of the conveying shaft for connecting the circulation pipe.
[0016] In the above scheme, a cross bearing frame is installed at the bottom of the feed assembly to ensure the stable operation of the conveying shaft, and at the same time ensure that the brine return pipe connected to the bottom of the conveying shaft will not entangle the shaft and rotate, thereby not affecting the entry of the squeezed material.
[0017] Preferably, a second circular hole is opened on the lower side of the cross bearing frame, and the second circular hole is located on the left side of the Y-shaped feeding frame and passes through the Y-shaped feeding frame.
[0018] In the above solution, the second circular hole is used for the entry and positioning of the saline return pipe, and opening the second circular hole at this position is beneficial to the rationality of the overall distribution of the saline return pipe.
[0019] Preferably, the conveying shaft includes a single shaft, a frying tube, and a tube storage hole, the tube storage hole is opened at the bottom and top of the single shaft, the frying tube is fixedly wound on the single shaft, and the frying tube connects the tube storage holes at the bottom and top of the single shaft, the bottom of the single shaft is rotatably mounted on a cross bearing frame, and the top is rotatably mounted on a fixed shaft frame.
[0020] In the above scheme, the frying tube is used for the brine to flow along the frying tube, and the tube storage hole is used for the installation of the frying tube to ensure that the frying tube is installed at the center of the circle. When the single axis rotates, the frying tube does not make a circular motion. When the single axis rotates, the frying tube rotates around the single axis. The heat on the frying tube fully heats the peanuts. Preheating the peanuts is beneficial to improving the oil yield of the peanuts.
[0021] Preferably, a brine outlet pipe is installed at the bottom of the frying tube, the other end of the brine outlet pipe is connected to the circulation pipe, a brine return pipe is rotatably installed at the top of the frying tube, the brine return pipe is connected to the circulation pipe, and a brine pump is installed on the brine return pipe.
[0022] In the above scheme, the setting of the brine return pipe is that the brine forms a loop in the whole mechanism, so that the excessive high temperature generated by squeezing is absorbed by the brine, and the brine after absorbing the heat is transported to the inside of the feed component to preheat the incoming peanuts. The setting of the brine pump is used to promote the circulation of brine. The brine runs from left to right, promotes the heat balance inside the body, and promotes the transfer of the high temperature generated by the body to the inside of the feed component. The heat obtained by the feed component is used to preheat the incoming peanuts.
[0023] Preferably, the brine outlet pipe is installed on the upper part of the outer side of the pressing cage and is connected to the left and right ends of the outer side of the pressing cage.
[0024] In the above scheme, the installation position of the brine outlet pipe is used to absorb the heat accumulated in the top pressing strip. At the same time, the heat of the pressing strip disappears so that the water droplets remain on the top, thereby achieving moisture balance inside the pressing screw. Moisture balance makes the pressed raw materials soften evenly, thereby increasing the oil yield. The brine inside the brine outlet pipe enters after being absorbed by the peanuts. At this time, the water temperature is relatively low. After being heated by the temperature of the pressing strip, the temperature is raised. When the brine enters the main body, it will not irritate the main body due to the large temperature difference, thereby achieving full use of energy and extending the service life.
[0025] A method for pressing edible oil, applicable to the above-mentioned preferred edible oil pressing system, comprises the following steps:
[0026] S1: Before starting work, hot brine is continuously injected into the mechanism through the brine pump. The hot brine flows through the brine pump along the brine return pipe to the inside of the feed component, enters the inside of the single shaft from the storage tube hole, passes through the storage tube hole, flows out of the inside of the single shaft through the frying tube, flows around the single shaft, passes through the storage tube hole, flows out through the second circular hole and connects to the brine outlet pipe. The hot brine flows along the brine outlet pipe into the circulation pipe, the brine flows along the circulation pipe into the brine return pipe, and the brine flows back to the brine pump along the brine return pipe.
[0027] S2: When starting to work, the brine in the brine pump flows along the brine return pipe to the transmission shaft. The internal frying pipe of the transmission shaft is connected to the brine outlet pipe. The brine fully flows inside the brine outlet pipe. At the same time, the heat generated by the extrusion is absorbed by the pressing bar and transmitted to the inside of the brine outlet pipe. The brine in the brine outlet pipe flows to the circulation pipe. The brine in the circulation pipe flows from left to right into the brine return pipe. The brine returns to the brine pump along the brine return pipe.
[0028] S3: The raw material enters the feeding assembly, the conveying shaft starts to rotate, the raw material moves downward, the conveying shaft heats the downward raw material, the raw material enters the pressing cage, the spiral pressing blades on the pressing screw rotate to squeeze the raw material, the raw material squeezes the spring valve, the conical head moves inward, the brine in the circulation pipe sprays out along the water outlet to the raw material, the spiral pressing blades continue to squeeze the raw material, the raw material is squeezed out of the internal space of the pressing screw, and the cake cleaning rack rotates to divide the extruded raw material.
[0029] In the above steps, the hot salt water circulates along the entire mechanism to provide a good temperature environment for the oil press mill and the subsequent oil pressing. The circulation of the salt water drives the heat flow inside the screw to balance the temperature inside the screw and preheat the incoming peanuts. At the same time, the installation of the spring valve realizes the pressing and softening of the raw materials at the same time to improve the oil pressing efficiency.
[0030] Compared with the prior art, the present invention has the following beneficial effects:
[0031] 1. In the existing screw oil press, when the oil is continuously pressed, the internal screw is continuously rubbed and compressed to produce high temperature and high pressure. The high temperature directly acts on the crude oil obtained by pressing, causing the loss of nutrients and adverse health. At the same time, the high temperature and high pressure act on the pressing bars, causing the pressing bars to continuously expand. The continuous expansion finally causes the gap between the pressing bars to become larger, and too much slag will be generated during oil pressing. The present invention arranges a circulation pipe, a salt water outlet pipe, a salt water return pipe, and a salt water pump to connect the inside and outside of the entire system through the flow of salt water, so as to achieve the balance of high heat at the thick end of the pressing screw to the thin end, and transfer the high temperature inside the pressing screw to preheat the input material. The cooled salt water returns to the inside of the pressing screw to continue to take away heat and continue to be used for preheating peanuts, thereby achieving full utilization of energy. The heat inside the pressing screw is transferred to reduce the deformation of the pressing bars and the damage of the crude oil to the high temperature. At the same time, preheating the raw materials that have just entered is beneficial to softening the material and improving the oil yield.
[0032] 2. The present invention arranges water outlet holes on the left and right sides of the circulation pipe, and installs spring valves in the water outlet holes to solve the difficulties in cake discharging caused by over-dry materials and the low oil yield caused by the mill not being used when just started. When just started and the raw materials have not started to be squeezed, hot salt water flows through the circulation pipe and uses the heat of the salt water to heat the internal space where the squeezing screw is located. The temperature rises in the internal space where the squeezing screw is located, providing a good condition for squeezing peanuts. When the raw materials are squeezed, the spring valve is squeezed by the raw materials, and the installation positions of the spring valve and the water outlet are changed. The hot salt water in the circulation pipe is sprayed onto the raw materials along the circulation pipe, and the raw materials are soaked and softened by the hot salt water, thereby improving the oil yield and making the cakes easier.
[0033] 3. The present invention provides a first circular hole on the fixed ring for correct guidance during installation by individual households. The first circular hole is used to install the brine outlet pipe, which reduces the damage of high temperature to crude oil and realizes that the excess high temperature is used to heat the brine for preheating the feed peanuts. The brine outlet pipe passes through the first circular hole and is installed on the outside of the pressing cage and is close to the pressing bars where heat is gathered. When the oil is continuously pressed, the heat generated inside the pressing cage is gathered at the top by relying on water vapor. The heat at the top is absorbed by the pressing bars, and the pressing bars use the heat to heat the brine in the brine outlet pipe. At the same time, after the heat disappears, the water droplets after the water vapor is cooled stay at the top to achieve moisture balance inside the pressing cage. The heat obtained by the pressing bars is reduced, which reduces the possibility of increasing the gap between the pressing bars, thereby reducing slag leakage. The moisture balance makes the overall softening effect better and improves the overall oil yield. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0035] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
[0036] Figure 1 This is a schematic diagram of the overall planed structure of an edible oil pressing system of the present invention;
[0037] Figure 2 This is a schematic diagram of the transverse cross-sectional structure of a pressing cage of an edible oil pressing system of the present invention;
[0038] Figure 3 It is a schematic diagram of the structure of a plane view of a pressing screw of an edible oil pressing system of the present invention;
[0039] Figure 4 This is a schematic diagram of the structure of a spring valve of an edible oil pressing system of the present invention;
[0040] Figure 5 This is a schematic structural diagram of a feed assembly of an edible oil pressing system of the present invention;
[0041] Figure 6 It is a schematic structural diagram of a planed surface view of a transmission shaft of an edible oil pressing system of the present invention;
[0042] Figure 7 This is a schematic diagram of the appearance structure of an edible oil pressing system of the present invention;
[0043] Figure 8 It is a structural schematic diagram of an edible oil pressing system in the prior art.
[0044] In the figure: 1, frame; 2, pressing cage; 21, fixing ring; 22, first circular hole; 23, pressing bar; 3, pressing screw; 31, body; 32, circulation pipe; 33, water outlet hole; 34, spiral pressing blade; 35, cake cleaning rack; 36, limit handle; 4, feeding assembly; 41, Y-shaped feeding rack; 42, fixed shaft rack; 43, cross bearing rack; 44, transmission shaft; 441, single shaft; 442, frying tube; 443, tube storage hole; 5, first motor; 6, brine pump; 7, belt drive motor; 8, brine return pipe; 9, brine outlet pipe; 10, spring valve; 101, cone head; 102, connecting spring; 11, second circular hole; DETAILED DESCRIPTION
[0045] The technical solution of the present invention will be described in detail below through the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Compared with the implementation scheme in the present invention, all other solutions obtained by relevant personnel in this field without making creative work are within the scope of protection of the present invention.
[0046] See also Figures 1 to 8 The present invention provides an edible oil pressing system, and the technical solution is as follows:
[0047] As an embodiment of the present invention, refer to Figure 1 and Figure 3A system for squeezing edible oil comprises a frame 1, a pressing cage 2, a pressing screw 3, a feeding assembly 4 and a first motor 5, wherein the pressing cage 2 is fixedly mounted on the frame 1, the pressing screw 3 is rotatably mounted inside the pressing cage 2, the feeding assembly 4 is fixedly mounted on one side of the top end of the pressing cage 2, the first motor 5 is mounted on one side of the frame 1, a flow pipe 32 is provided inside the pressing screw 3, and the flow pipe 32 penetrates the pressing screw 3, water outlet holes 33 are symmetrically provided on both sides of the flow pipe 32, a spring valve 10 is mounted inside the water outlet hole 33, one end of the flow pipe 32 is connected to the bottom end of the feeding assembly 4, and the other end of the flow pipe 32 is connected to a salt water pump 6, the salt water pump 6 is connected to the top end of the feeding assembly 4 and communicates with the flow pipe 32 at the bottom of the feeding assembly 4, and the flow direction in the flow pipe 32 is from the thick end section of the pressing screw 3 to the thin end.
[0048] As an embodiment of the present invention, refer to Figure 1 and Figure 2 The pressing cage 2 includes a fixing ring 21, a first circular hole 22, and pressing bars 23. The first circular hole 22 is provided at a symmetrical position on the upper half of the fixing ring 21. The pressing bars 23 are fixedly installed inside the fixing ring 21, and the pressing bars 23 are distributed in a circular array. The fixing ring 21 is divided into an upper and lower part, and the two parts cooperate to install and fix the pressing bars 23. The first circular hole 22 is provided for installation for the flow of brine outside. At the same time, the first circular hole 22 is provided at the top of the fixing ring 21 and is used for installation positioning at a symmetrical position to ensure that the staff reduces installation errors during installation. The top of the first circular hole 22 where the hot air is concentrated effectively heats the brine in the brine return pipe 8, and absorbs the heat of the pressing bars 23.
[0049] As an embodiment of the present invention, refer to Figure 3 The squeezing screw 3 includes a body 31, a spiral squeezing blade 34, a cake cleaning rack 35, and a limit handle 36. The circulation pipe 32 is opened on the center line of the body 31. The water outlets 33 are symmetrically arranged on both sides of the circulation holes 32. The spiral squeezing blades 34 are fixedly installed on the outside of the body 31. The cake cleaning rack 35 is rotatably installed on the thick end of the body 31. The limit handle 36 is installed on one side of the cake cleaning rack 35. At the beginning of work, hot salt water enters the body 31 through the circulation holes 32, heats the body 31, and thus achieves the effect of a mill. The body 31 heats the air in the space where it is located, achieves the effect of heating the internal space and provides good temperature conditions for oil extraction. During work, the salt water starts to flow from left to right inside the body 31, and the high heat on the left is transferred to the right through the salt water, so as to achieve temperature balance on the left and right sides of the body 31. At the same time, the high temperature generated by squeezing on the left side is reduced, thereby reducing the damage of high temperature to nutrients.
[0050] As an embodiment of the present invention, refer to Figure 1 , Figure 3 , Figure 4The spring valve 10 includes a conical head 101 and a connecting spring 102. The connecting spring 102 is installed between two opposite conical heads 101. A circulation pipe 32 is provided inside the body 31 for the flow of brine. Water outlet holes 33 are symmetrically provided on both sides of the circulation pipe 32. The spring valve 10 is installed inside the water outlet hole 33. When not working, the spring valve 10 is installed to ensure that the brine only passes through the circulation pipe 32 to fully heat the body 31. When working, the body 31 rotates to extrude the raw material, the raw material squeezes the spring valve 10, and the conical head 101 moves inward, and the brine is sprayed out from the circulation pipe 32 along the water outlet hole 33. That is, when the raw material is not squeezed, the brine is used to heat the body 31 and the mill. When the raw material is squeezed, the brine is used to soften the raw material and balance the high temperature generated by the squeezing.
[0051] As an embodiment of the present invention, refer to Figure 1 , Figure 5 and Figure 6 The feeding assembly 4 includes a Y-shaped feeding frame 41, a fixed shaft frame 42, a cross bearing frame 43, and a transmission shaft 44. The fixed shaft frame 42 is fixedly installed on the top of the Y-shaped feeding frame 41, and the cross bearing frame 43 is fixedly installed on the bottom of the Y-shaped feeding frame 41. The transmission shaft 44 is rotatably installed on the cross bearing frame 43, and the other end is rotatably connected to the fixed shaft frame 42. The transmission shaft 44 is close to the fixed shaft frame 42. One end is driven and installed with a belt drive motor 7. The top and bottom centers of the transmission shaft 44 are provided with storage holes 443 for connecting The circulation pipe 32 is provided with a cross bearing frame 43 at the bottom end of the feed assembly 4 to ensure the stable operation of the conveying shaft 44, and at the same time to ensure that the bottom end of the conveying shaft 44 connected to the brine outlet pipe 9 will not be entangled in the shaft for rotation, thereby not affecting the entry of the squeezed material. A second circular hole 11 is provided on the lower side of the cross bearing frame 43, and the second circular hole 11 is located on the left side of the Y-shaped feed frame 41 and passes through the Y-shaped feed frame 41. The second circular hole 11 is provided for the entry and positioning of the brine return pipe 8, and opening at this position is beneficial to the rational distribution of the overall brine return pipe 8.
[0052] As an embodiment of the present invention, refer to Figure 1 and Figure 6The transmission shaft 44 includes a single shaft 441, a frying tube 442, and a tube storage hole 443. The tube storage hole 443 is opened at the bottom and top of the single shaft 441. The frying tube 442 is fixedly wound on the single shaft 441, and the frying tube 442 connects the tube storage hole 443 at the bottom and top of the single shaft 441. The bottom of the single shaft 441 is rotatably mounted with the cross bearing frame 43, and the top is rotatably mounted with the fixed shaft frame 42. The frying tube 442 is configured for the brine to flow along the frying tube 442. The tube storage hole 443 is configured for the installation of the frying tube 442 to ensure that the frying tube 442 is installed at the center of the circle. When the single shaft 441 rotates, the frying tube 442 does not make a circular motion. When the single shaft 441 rotates, the frying tube 442 rotates around the single shaft 441. The heat on the frying tube 442 fully heats the peanuts. Preheating the peanuts is beneficial to improving the oil yield of the peanuts.
[0053] As an embodiment of the present invention, refer to Figure 5 , Figure 6 , Figure 7 A brine outlet pipe 9 is installed at the bottom of the frying tube 442, and the other end of the brine outlet pipe 9 is connected to the circulation pipe 32. A brine return pipe 8 is rotatably installed on the top of the frying tube 442. The brine return pipe 8 is connected to the circulation pipe 32, and a brine pump 6 is installed on the brine return pipe 8. The setting of the brine return pipe 8 is that the brine forms a loop in the entire mechanism, so that the excessive high temperature generated by squeezing is absorbed by the brine, and the heat-absorbing brine is transported to the inside of the feeding component 4 to preheat the incoming peanuts. The brine pump 6 is set to promote the circulation of brine. The brine runs from left to right, promotes the heat balance inside the main body 31, and promotes the high temperature generated by the main body 31 to be transferred to the inside of the feeding component 4. The heat obtained by the feeding component 4 is used to preheat the incoming peanuts.
[0054] As an embodiment of the present invention, refer to Figure 1 , Figure 3 , Figure 7 The salt water outlet pipe 9 is installed on the upper part of the outer side of the pressing cage 2 and is connected to the left and right ends of the outer side of the pressing cage 2. The installation position of the salt water outlet pipe 9 is used to absorb the heat accumulated in the top pressing bar 23. At the same time, the heat of the pressing bar 23 disappears so that the water droplets stay on the top, thereby achieving the balance of moisture inside the pressing screw 3. The moisture balance softens the pressed raw materials evenly, thereby improving the oil yield. The salt water inside the salt water outlet pipe 9 enters after being absorbed by the peanuts. At this time, the water temperature is relatively low. After being heated by the temperature of the pressing bar 23, the temperature is increased. When the salt water enters the inside of the main body 31, it will not stimulate the main body 31 due to the large temperature difference, thereby achieving full use of energy and extending the service life.
[0055] Specific pressing method: refer to Figures 1 to 7Before starting work, hot brine is continuously injected into the mechanism through the brine pump 6. The hot brine flows through the brine pump 6 along the brine return pipe 8 to the inside of the feed component 4, enters the inside of the single shaft 441 from the storage pipe hole 443, exits the inside of the single shaft 441 through the storage pipe hole 443, flows around the single shaft 441 through the frying pipe 442, passes through the storage pipe hole 443, flows out through the second circular hole 11 and connects to the brine outlet pipe 9. The hot brine flows into the circulation pipe 32 along the brine outlet pipe 9, and the brine flows into the brine return pipe 8 along the circulation pipe 32. The brine flows back to the brine pump 6 along the brine return pipe 8. The hot brine circulates along the entire mechanism to provide a good temperature environment for the mill of the oil press and the subsequent oil pressing. When starting work, the brine in the brine pump 6 flows along the brine return pipe 8 to the transmission shaft 44, and the transmission shaft 44 frying pipe 442 is inside. The brine outlet pipe 9 is connected, and the brine fully flows inside the brine outlet pipe 9. At the same time, the heat generated by the extrusion is absorbed by the pressing bar 23 and spreads to the inside of the brine outlet pipe 9. The brine in the brine outlet pipe 9 flows to the circulation pipe 32. The brine in the circulation pipe 32 flows from left to right into the brine return pipe 8. The brine returns to the brine pump 6 along the brine return pipe 8. The raw material enters the feeding assembly 4, and the transmission shaft 44 starts to rotate the raw material downward. The transmission shaft 44 heats the downward raw material. The raw material enters the pressing cage 2, and the spiral pressing blades 34 on the pressing screw 3 are rotated to squeeze the raw material. The raw material squeezes the spring valve 10, and the conical head 101 moves inward. The brine in the circulation pipe 32 is sprayed out along the water outlet 33 onto the raw material. The spiral pressing blades 34 continue to squeeze the raw material. The raw material is squeezed out of the internal space of the pressing screw 3, and the cake cleaning clamp 35 rotates to divide the raw material after squeezing. The circulation of the brine drives the heat flow inside the pressing screw 3, which is used to balance the temperature inside the pressing screw 3 and preheat the incoming peanuts. At the same time, the installation of the spring valve 10 realizes the squeezing and softening of the raw material at the same time to improve the oil pressing efficiency.
[0056] The present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall all fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. An edible oil pressing system, comprising a frame (1), a pressing cage (2), a pressing screw (3), a feed assembly (4), and a first motor (5), characterized in that: The pressing cage (2) is fixedly mounted on the frame (1); the pressing screw (3) is rotatably mounted inside the pressing cage (2); the feeding assembly (4) is fixedly mounted on one side of the top end of the pressing cage (2); the first motor (5) is mounted on one side of the frame (1); a circulation pipe (32) is provided inside the pressing screw (3), and the circulation pipe (32) passes through the pressing screw (3); water outlet holes (33) are symmetrically provided on both sides of the circulation pipe (32); a spring valve (10) is installed inside the water outlet hole (33); one end of the circulation pipe (32) is connected to the bottom end of the feeding assembly (4); the other end of the circulation pipe (32) is connected to a salt water pump (6); the salt water pump (6) is connected to the top end of the feeding assembly (4) and is in communication with the circulation pipe (32) at the bottom of the feeding assembly (4); the flow direction in the circulation pipe (32) is from the thick end section of the pressing screw (3) to the thin end.
2. The edible oil pressing system according to claim 1, characterized in that: The pressing cage (2) comprises a fixing ring (21), a first circular hole (22), and pressing bars (23); the first circular hole (22) is arranged at a symmetrical position on the upper half of the fixing ring (21); the pressing bars (23) are fixedly installed inside the fixing ring (21), and the pressing bars (23) are arranged in a circular array; the fixing ring (21) is divided into an upper and a lower part, and the two parts cooperate to fix the pressing bars (23).
3. The edible oil pressing system according to claim 1, characterized in that: The squeezing screw (3) comprises a body (31), a spiral squeezing blade (34), a cake cleaning frame (35), and a limit handle (36); the circulation pipe (32) is arranged on the inner center line of the body (31); the water outlet holes (33) are symmetrically arranged on both sides of the circulation pipe (32); the spiral squeezing blade (34) is fixedly mounted on the outer side of the body (31); the cake cleaning frame (35) is rotatably mounted on the thick end of the body (31); and the limit handle (36) is mounted on one side of the cake cleaning frame (35).
4. The edible oil pressing system according to claim 3, characterized in that: The spring valve (10) comprises a conical head (101) and a connecting spring (102), wherein the connecting spring (102) is installed between two opposite conical heads (101).
5. The edible oil pressing system according to claim 1, characterized in that: The feed assembly (4) comprises a Y-shaped feed frame (41), a fixed shaft frame (42), a cross bearing frame (43), and a transmission shaft (44); the fixed shaft frame (42) is fixedly mounted on the top of the Y-shaped feed frame (41); the cross bearing frame (43) is fixedly mounted on the bottom of the Y-shaped feed frame (41); the transmission shaft (44) is rotatably mounted on the cross bearing frame (43), and the other end is rotatably connected to the fixed shaft frame (42); a belt drive motor (7) is installed at one end of the transmission shaft (44) close to the fixed shaft frame (42); and pipe storage holes (443) are provided at the center of the top and bottom ends of the transmission shaft (44) for connecting the circulation pipe (32).
6. The edible oil pressing system according to claim 5, characterized in that: A second circular hole (11) is provided on the lower side of the cross bearing frame (43), and the second circular hole (11) is located on the left side of the Y-shaped feeding frame (41) and passes through the Y-shaped feeding frame (41).
7. The edible oil pressing system according to claim 5, characterized in that: The transmission shaft (44) comprises a single shaft (441), a frying tube (442), and a tube storage hole (443). The tube storage hole (443) is provided at the bottom and top of the single shaft (441). The frying tube (442) is fixedly wound on the single shaft (441), and the frying tube (442) connects the tube storage hole (443) at the bottom and top of the single shaft (441). The bottom of the single shaft (441) is rotatably mounted on a cross bearing frame (43), and the top of the single shaft (441) is rotatably mounted on a fixed shaft frame (42).
8. The edible oil pressing system according to claim 7, characterized in that: A brine outlet pipe (9) is installed at the bottom end of the stir-frying tube (442), and the other end of the brine outlet pipe (9) is connected to the circulation pipe (32). A brine return pipe (8) is rotatably installed at the top end of the stir-frying tube (442), and the brine return pipe (8) is connected to the circulation pipe (32), and a brine pump (6) is installed on the brine return pipe (8).
9. The edible oil pressing system according to claim 7, characterized in that: The salt water outlet pipe (9) is installed on the upper part of the outer side of the pressing cage (2) and is connected to the left and right ends of the outer side of the pressing cage (2).
10. A method for pressing edible oil, applicable to the edible oil pressing system according to any one of claims 1 to 9, characterized in that: The steps include: S1: before starting to work, hot salt water is continuously injected into the mechanism through the salt water pump (6), and the hot salt water flows through the salt water pump (6) along the salt water return pipe (8) to the inside of the feed assembly (4), enters the inside of the single shaft (441) from the storage pipe hole (443), exits the inside of the single shaft (441) through the storage pipe hole (443), passes through the stir-fried pipe (442), flows around the single shaft (441), passes through the storage pipe hole (443), flows out through the second circular hole (11), and is connected to the salt water outlet pipe (9), and the hot salt water flows along the salt water outlet pipe (9) into the circulation pipe (32), and the salt water flows along the circulation pipe (32) into the salt water return pipe (8), and the salt water flows back to the salt water pump (6) along the salt water return pipe (8); S2: When the operation starts, the salt water in the salt water pump (6) flows along the salt water return pipe (8) into the transmission shaft (44), the internal stir-fried pipe (442) of the transmission shaft (44) is connected to the salt water outlet pipe (9), the salt water fully flows inside the salt water outlet pipe (9), and the heat generated by the squeezing is absorbed by the squeezing strip (23) and transmitted to the inside of the salt water outlet pipe (9), the salt water in the salt water outlet pipe (9) flows to the circulation pipe (32), the salt water in the circulation pipe (32) flows from left to right into the salt water return pipe (8), and the salt water returns to the salt water pump (6) along the salt water return pipe (8); S3: The raw material enters the feed assembly (4), the conveying shaft (44) starts to rotate, and the raw material moves downward. The conveying shaft (44) heats the downward raw material, and the raw material enters the pressing cage (2). The spiral pressing blades (34) on the pressing screw (3) rotate to squeeze the raw material. The raw material squeezes the spring valve (10), and the conical head (101) moves inward. The salt water in the circulation pipe (32) is sprayed out along the water outlet (33) onto the raw material. The spiral pressing blades (34) continue to squeeze the raw material. The raw material is squeezed out of the internal space of the pressing screw (3), and the cake cleaning rack (35) rotates to divide the squeezed raw material.