Equipment and method for anhydrous refining, degumming and decoloring process of tea-seed oil

Abstract

The invention discloses equipment and a method for a tea-seed oil anhydrous refining, degumming and decoloring process, and relates to the technical field of tea-seed oil anhydrous refining, the equipment comprises a pretreatment unit, a sewage leaching unit, a degumming and decoloring unit and a deodorization and dewaxing unit; the deodorization and dewaxing unit comprises a deodorization tower and a dewaxing device, a top inlet of the deodorization tower is communicated with an outlet of the filter press, and the dewaxing device is located at the bottom in the deodorization tower and surrounds the periphery of a cooling pipeline device of the deodorization tower. The deodorization tower and the dewaxing device are combined into a whole, the tea-seed oil is guided into the deodorization tower, heated to a set temperature, deodorized by the deodorization filler, cooled by the cooling pipeline device after passing through the deodorization filler, and dewaxed by the dewaxing device to form a finished product of tea-seed oil. The dewaxing device surrounds the cooling pipeline device, and the temperature in the dewaxing device can be further stabilized at a relatively low temperature through refrigeration of the cooling pipeline device, so that the condition of incomplete dewaxing caused by non-uniform cooling is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of anhydrous tea seed oil refining, in particular to equipment and a method for anhydrous tea seed oil refining, degumming and decoloring process. Background Art

[0002] The equipment for tea seed oil anhydrous refining, degumming and decolorization process usually includes the following key parts:

[0003] Pretreatment equipment: This stage includes cleaning, shelling, crushing, softening, puffing, flaking and steaming. The purpose is to remove impurities in the oil and adjust the moisture and temperature for subsequent pressing or leaching.

[0004] Extraction equipment: The extraction process uses an organic solvent that can dissolve oil and fat to contact with the treated oil or pressed cake and soak for a period of time to extract the oil. This process generally includes steps such as oil extraction, wet meal desolventization, mixed oil treatment and solvent recovery.

[0005] Refining equipment: The refining stage is to remove harmful impurities and useless substances in crude oil, improve the storage stability of edible oil, and make the smell and color meet national standards. This includes degumming, deacidification, decolorization, deodorization, dewaxing and fractionation processes.

[0006] The process of anhydrous refining, degumming and decolorization is generally more mature. After degumming and decolorization, deodorization and dewaxing processes are required. Traditional deodorization and dewaxing are generally carried out separately, which is inefficient. In addition, due to the structural design of the traditional deodorization tower, the oil is heated and cooled unevenly, resulting in unsatisfactory deodorization and dewaxing effects. Summary of the invention

[0007] In order to solve the existing technical problems, the present invention provides equipment and methods for anhydrous refining, degumming and decolorization of tea seed oil. The following technical solutions are adopted:

[0008] The equipment used for the anhydrous refining, degumming and decoloring process of tea seed oil comprises a pretreatment unit, a sewage leaching unit, a degumming and decoloring unit and a deodorizing and dewaxing unit. The pretreatment unit comprises a magnetic separator, a crusher and a softener. The inlet of the magnetic separator is located below the feed hopper to receive tea seeds to be processed, the inlet of the crusher is located at the outlet of the magnetic separator, and the inlet of the softener is located at the outlet of the crusher.

[0009] The sewage leaching unit comprises a leaching tank and a first centrifugal separator; the inlet of the leaching tank is connected to the outlet of the crusher, the water outlet of the softener is connected to the water inlet of the leaching tank, and the inlet of the first centrifugal separator is connected to the outlet of the leaching tank;

[0010] The degumming and decoloring unit comprises a degumming reaction tank, a second centrifugal separator, a decoloring tower and a filter press; the top inlet of the degumming reaction tank is connected to the grease outlet of the centrifugal separator, the inlet of the second centrifugal separator is connected to the grease outlet of the degumming reaction tank, the inlet of the decoloring tower is connected to the grease outlet of the second centrifugal separator, and the inlet of the filter press is connected to the outlet of the decoloring tower;

[0011] The deodorizing and dewaxing unit comprises a deodorizing tower and a dewaxing device. The top inlet of the deodorizing tower is connected with the outlet of the filter press. The dewaxing device is located at the bottom of the deodorizing tower and surrounds the periphery of the cooling pipe device of the deodorizing tower. The outlet of the cooling pipe device of the deodorizing tower is connected with the inlet of the dewaxing device through a circulating pump and a pipeline.

[0012] By adopting the above technical solution, the tea seeds to be processed are sent to the pretreatment unit through a conveyor belt, magnetic impurities can be removed by a magnetic separator, the tea seeds are crushed to a set particle size by a crusher, and the moisture of the tea seeds is adjusted to a set value by a softener to make it easier to extract oil;

[0013] The tea seeds after the pretreatment unit are introduced into the leaching tank and mixed with the organic solvent for oil extraction; the mixture is separated into oil and solid impurities by the first centrifugal separator; the leaching temperature is controlled at 40-50°C, the stirring speed is determined according to the actual situation to ensure sufficient mixing, and the speed and time of the first centrifugal separator are adaptively adjusted according to the actual situation;

[0014] The separated oil is introduced into a degumming reaction tank, a phosphoric acid degumming agent is added to the tea seed oil, the degumming agent reacts with the colloid in the oil by stirring, and the colloid and other solid impurities generated by the reaction are removed by a second centrifugal separator; the degumming agent is adjusted according to the quality of the oil, and the degumming reaction time is 20-30 minutes;

[0015] The tea seed oil output from the second centrifugal separator is introduced into a decolorizing tower, an activated clay adsorbent is added to the oil, and the oil is stirred and heated in the decolorizing tower so that the adsorbent adsorbs the pigment and impurities in the tea seed oil, and the clay adsorbed with the pigment and the tea seed oil are separated by a filter press; the proportion of the activated clay adsorbent is 1-5% of the weight of the oil, the decolorizing temperature is controlled at 70-90° C., and the decolorizing time is 30-60 minutes;

[0016] The tea seed oil is introduced into the deodorization tower, heated to the set temperature, and then enters the deodorization filler for deodorization. After passing through the deodorization filler, it enters the cooling pipe device for cooling, and the wax therein is precipitated. After being dewaxed by the dewaxing device, the finished tea seed oil is formed. The dewaxing device surrounds the cooling pipe device. The refrigeration energy of the cooling pipe device can further stabilize the temperature in the dewaxing device at a lower temperature, thereby avoiding incomplete dewaxing caused by uneven cooling.

[0017] It can realize automated control and precise process flow to ensure that the tea seed oil produced is safe, healthy and nutritious.

[0018] Optionally, the deodorizing tower includes a tower body, a heating device, a deodorizing filling module, an oil collecting funnel and a cooling pipe device, wherein an oil inlet and a high-temperature steam inlet are provided at the top of the tower body, and an oil outlet is provided at the bottom; the heating device includes a high-temperature steam pipe, a plurality of grid slots and a plurality of electrically-controlled valves; the high-temperature steam pipe is connected to the high-temperature steam inlet at the top of the tower body; the plurality of grid slots are respectively installed in the tower body and are located directly below the oil inlet and the high-temperature steam inlet; an oil outlet is provided at the bottom of the grid slot; the electrically-controlled valve is installed at the oil outlet at the bottom of the grid slot; when the temperature in the grid slot reaches a set temperature value, the electrically-controlled valve opens; the grid slot is provided with a plurality of grease channels; the deodorizing filling module is installed in the tower body and is located below the opening of the electrically-controlled valve; the oil collecting funnel is installed in the tower body and is located directly below the bottom of the deodorizing filling module; the oil inlet of the cooling pipe device is installed at the outlet of the oil collecting funnel.

[0019] Optionally, the deodorizing filler module is filled with a deodorizing filler, and the deodorizing filler is a combination of one or more of Raschig rings, Pall rings, saddle-shaped fillers, and corrugated fillers.

[0020] By adopting the above technical solution, the heating device adopts high-temperature steam heating, and adopts multiple grid grooves to form multiple heating zones, so the heating effect is more uniform and the subsequent deodorization effect is more thorough.

[0021] Optionally, the cooling pipe device includes a refrigeration cylinder and multiple refrigeration fins. The refrigeration cylinder is provided with an oil inlet at the top and an oil outlet at the bottom. The top of the refrigeration cylinder is installed at the outlet of the oil collecting funnel, and the oil inlet is connected to the outlet of the oil collecting funnel. The multiple refrigeration fins are respectively installed on the inner wall and the middle of the refrigeration cylinder to cool the incoming oil.

[0022] Optionally, the dewaxing device includes an annular dewaxing tank and multiple filter material layers. The annular dewaxing tank is hollow in the middle, has an oil inlet on the top, and an oil outlet on the bottom. The annular dewaxing tank surrounds the outer wall of the refrigeration cylinder. The top oil inlet of the annular dewaxing tank is connected to the outlet of the cooling pipe device through a circulating pump and a pipeline. Multiple filter material layers are installed at equal intervals on the inner wall of the annular dewaxing tank. The oil outlet at the bottom of the annular dewaxing tank is connected to the oil outlet at the bottom of the tower body through a pipeline and a valve.

[0023] Optionally, the filter material layer is one or more combinations of cotton filter cloth, activated carbon, diatomaceous earth, and molecular sieve.

[0024] By adopting the above technical solution, the temperature of the cooled grease drops below the solidification point of the wax, and the wax begins to solidify. The solidified wax is retained in multiple filter material layers, while the dewaxed grease flows out.

[0025] The cooling plate can adopt a semiconductor cooling plate, and cooperate with the temperature sensor to achieve more precise temperature control to ensure the deodorization effect and the full solidification of the wax, while avoiding the solidification of the tea seed oil.

[0026] Optionally, it also includes an automatic controller, which includes multiple temperature sensors, a memory and an industrial control computer. The multiple temperature sensors respectively monitor the temperatures of the grid groove, the refrigeration cylinder and the filter material layer in the deodorization tower. The memory is respectively communicated with the multiple temperature sensors. The industrial control computer respectively controls the execution actions of the actuators of the pretreatment unit, the sewage leaching unit, the degumming and decolorization unit, and the deodorization and dewaxing unit.

[0027] By adopting the above technical solution, automated process control can be achieved through the combination of temperature sensors and industrial control computers.

[0028] The process for anhydrous refining, degumming and decoloring of tea seed oil is used to refine tea seed oil using equipment for anhydrous refining, degumming and decoloring of tea seed oil, comprising the following steps:

[0029] Step 1, the tea seeds to be processed are sent to the pretreatment unit through a conveyor belt, the magnetic impurities are removed by a magnetic separator, the tea seeds are crushed to a set particle size by a crusher, and then the humidity of the tea seeds is adjusted to a set value by a softener;

[0030] Step 2, the tea seeds after the pretreatment unit are introduced into the leaching tank and mixed with the organic solvent to extract the oil; the mixture is separated into oil and solid impurities by a first centrifugal separator;

[0031] Step 3, the separated oil is introduced into a degumming reaction tank, a phosphoric acid degumming agent is added to the tea seed oil, the degumming agent reacts with the colloid in the oil by stirring, and the colloid and other solid impurities generated by the reaction are removed by a second centrifugal separator;

[0032] Step 4, introducing the tea seed oil output from the second centrifugal separator into a bleaching tower, adding an activated white clay adsorbent to the oil, stirring and heating in the bleaching tower so that the adsorbent adsorbs the pigment and impurities in the tea seed oil, and separating the white clay adsorbed with the pigment and the tea seed oil by a filter press;

[0033] Step 5, introducing the tea seed oil into the deodorization tower, inputting steam of set temperature through the high-temperature steam pipeline, heating the tea seed oil to the set temperature in multiple grid slots, opening the electric control valve, and allowing the tea seed oil to fall into the deodorization filling module, and then into the oil collecting funnel after passing through the deodorization filling module, and finally into the refrigeration cylinder, and controlling multiple refrigeration plates to cool the tea seed oil in the refrigeration cylinder. After reaching the set temperature, the circulating pump is started to pump the cooled tea seed oil into the annular dewaxing tank, and after dewaxing through multiple filter material layers, the finished tea seed oil is output from the oil outlet of the deodorization tower.

[0034] Optionally, in step 5, the set temperature for heating in the grid slot is 230°C-250°C, and the target temperature of the tea seed oil in the refrigeration cylinder is 5°C-8°C.

[0035] In summary, the present invention includes at least the following beneficial technical effects:

[0036] The present invention can provide equipment and methods for tea seed oil anhydrous refining, degumming and decoloring process, wherein magnetic impurities can be removed by a magnetic separator, the tea seeds are crushed to a set particle size by a crusher, and the moisture of the tea seeds is adjusted to a set value by a softener to make it easier to extract oil;

[0037] The deodorizing tower and the dewaxing device are designed to be integrated. The tea seed oil is introduced into the deodorizing tower, heated to a set temperature, and then enters the deodorizing filler for deodorization. After passing through the deodorizing filler, the oil enters the cooling pipe device for cooling. The wax therein is precipitated, and the finished tea seed oil is formed after being dewaxed by the dewaxing device. The dewaxing device surrounds the cooling pipe device. The refrigeration of the cooling pipe device can further stabilize the temperature in the dewaxing device at a lower temperature, thereby avoiding the incomplete dewaxing caused by uneven cooling.

[0038] It can realize automated control and precise process flow to ensure that the tea seed oil produced is safe, healthy and nutritious. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structural principle of the equipment used in the process of anhydrous refining, degumming and decoloring of tea seed oil according to the present invention;

[0040] Figure 2 It is a schematic diagram of the structural principle of the deodorization and dewaxing unit of the equipment used in the tea seed oil anhydrous refining, degumming and decolorization process of the present invention;

[0041] Figure 3 It is a schematic diagram of the cross-sectional structure principle of a deodorizing tower of the equipment used in the process of anhydrous refining, degumming and decolorization of tea seed oil according to the present invention;

[0042] Figure 4 The present invention is a schematic diagram of the connection principle of electrical components of the equipment used in the tea seed oil anhydrous refining, degumming and decoloring process.

[0043] Explanation of the reference numerals: 13, magnetic separator; 14, crusher; 15, softener; 21, leaching tank; 22, first centrifugal separator; 31, degumming reaction tank; 32, second centrifugal separator; 33, bleaching tower; 34, filter press; 41, deodorizing tower; 411, tower body; 412, heating device; 4122, high-temperature steam pipeline; 4123, grid slot; 4124, electric control valve; 4125, grease channel; 413, deodorizing filler module; 414, oil collecting funnel; 415, cooling pipeline device; 4151, refrigeration cylinder; 4152, refrigeration plate; 42, dewaxing device; 421, annular dewaxing tank; 422, filter material layer; 43, circulating pump; 5, automatic controller; 51, temperature sensor; 52, memory; 53, industrial control computer. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings. The embodiment of the present invention discloses equipment and method for anhydrous refining, degumming and decoloring of tea seed oil.

[0045] Reference Figure 1-Figure 4 Embodiment 1, equipment for anhydrous refining, degumming and decoloring of tea seed oil, comprising a pretreatment unit, a sewage leaching unit, a degumming and decoloring unit and a deodorizing and dewaxing unit, the pretreatment unit comprising a magnetic separator 13, a crusher 14 and a softener 15; the inlet of the magnetic separator 13 is located below the feed hopper to receive tea seeds to be processed, the inlet of the crusher 14 is located at the outlet of the magnetic separator 13, and the inlet of the softener 15 is located at the outlet of the crusher 14;

[0046] The sewage leaching unit includes a leaching tank 21 and a first centrifugal separator 22; the inlet of the leaching tank 21 is connected to the outlet of the crusher 14, the water outlet of the softener 15 is connected to the water inlet of the leaching tank 21, and the inlet of the first centrifugal separator 22 is connected to the outlet of the leaching tank 21;

[0047] The degumming and decoloring unit includes a degumming reaction tank 31, a second centrifugal separator 32, a decoloring tower 33 and a filter press 34; the top inlet of the degumming reaction tank 31 is connected to the grease outlet of the centrifugal separator 22, the inlet of the second centrifugal separator 32 is connected to the grease outlet of the degumming reaction tank 31, the inlet of the decoloring tower 33 is connected to the grease outlet of the second centrifugal separator 32, and the inlet of the filter press 34 is connected to the outlet of the decoloring tower 33;

[0048] The deodorizing and dewaxing unit includes a deodorizing tower 41 and a dewaxing device 42. The top inlet of the deodorizing tower 41 is connected to the outlet of the filter press 34. The dewaxing device 42 is located at the bottom of the deodorizing tower 41 and surrounds the periphery of the cooling pipe device 415 of the deodorizing tower 41. The outlet of the cooling pipe device 415 of the deodorizing tower 41 is connected to the inlet of the dewaxing device 42 through a circulating pump 43 and a pipeline.

[0049] The tea seeds to be processed are sent to the pretreatment unit through a conveyor belt, and magnetic impurities can be removed by a magnetic separator 13. The tea seeds are then crushed to a set particle size by a crusher 14, and the moisture of the tea seeds is adjusted to a set value by a softener 15 to make it easier to extract oil;

[0050] The tea seeds after the pretreatment unit are introduced into the leaching tank 21 and mixed with the organic solvent for oil extraction; the mixture is separated into oil and solid impurities by the first centrifugal separator 22; the leaching temperature is controlled at 40-50°C, the stirring speed is determined according to the actual situation to ensure sufficient mixing, and the speed and time of the first centrifugal separator 22 are adaptively adjusted according to the actual situation;

[0051] The separated oil is introduced into the degumming reaction tank 31, and a phosphoric acid degumming agent is added to the tea seed oil. The degumming agent reacts with the colloid in the oil by stirring, and the colloid and other solid impurities generated by the reaction are removed by the second centrifugal separator 32; the degumming agent is adjusted according to the quality of the oil, and the degumming reaction time is 20-30 minutes;

[0052] The tea seed oil output from the second centrifugal separator 32 is introduced into a decolorizing tower 33, an activated clay adsorbent is added to the oil, and the oil is stirred and heated in the decolorizing tower 33 so that the adsorbent adsorbs the pigment and impurities in the tea seed oil, and the clay adsorbed with the pigment and the tea seed oil are separated by a filter press 34; the proportion of the activated clay adsorbent is 1-5% of the weight of the oil, the decolorizing temperature is controlled at 70-90° C., and the decolorizing time is 30-60 minutes;

[0053] The tea seed oil is introduced into the deodorizing tower 41, heated to a set temperature, and then enters the deodorizing filler for deodorization. After passing through the deodorizing filler, the tea seed oil enters the cooling pipe device 415 for cooling, and the wax therein is precipitated. After being dewaxed by the dewaxing device 42, the finished tea seed oil is formed. The dewaxing device 42 surrounds the cooling pipe device 415. The refrigeration energy of the cooling pipe device 415 can further stabilize the temperature in the dewaxing device 42 at a lower temperature, thereby avoiding incomplete dewaxing caused by uneven cooling.

[0054] It can realize automated control and precise process flow to ensure that the tea seed oil produced is safe, healthy and nutritious.

[0055] Embodiment 2, the deodorizing tower 41 comprises a tower body 411, a heating device 412, a deodorizing filler module 413, an oil collecting funnel 414 and a cooling pipe device 415, the tower body 411 is provided with an oil inlet and a high-temperature steam inlet at the top, and an oil outlet at the bottom, the heating device 412 comprises a high-temperature steam pipeline 4122, a plurality of grid slots 4123 and a plurality of electric control valves 4124, the high-temperature steam pipeline 4122 is connected to the high-temperature steam inlet at the top of the tower body 411, the plurality of grid slots 4123 are respectively installed in the tower body 411, and are located directly below the oil inlet and the high-temperature steam inlet, the ... the grid slots 4123 are respectively installed in the tower body 411, and are located directly below the oil inlet and the high-temperature steam inlet, the grid slots 4123 are respectively installed in the tower body 411, and the grid slots 4123 are respectively installed in the tower body 411, and are located directly below the oil inlet and the high-temperature steam inlet, the grid slots 4123 are respectively installed in the tower body 411, and the grid slots 4123 are respectively installed in the tower body 411, and are respectively installed in the tower body 411, and are respectively An oil outlet is provided at the bottom of the grid slot 4123, and an electric-controlled valve 4124 is installed at the oil outlet at the bottom of the grid slot 4123. When the temperature in the grid slot 4123 reaches the set temperature value, the electric-controlled valve 4124 opens. The grid slot 4123 is provided with a plurality of grease channels 4125. The deodorizing filler module 413 is installed in the tower body 411 and is located below the opening of the electric-controlled valve 4124. The oil collecting funnel 414 is installed in the tower body 411 and is located directly below the bottom of the deodorizing filler module 413. The oil inlet of the cooling pipe device 415 is installed at the outlet of the oil collecting funnel 414.

[0056] In embodiment 3, the deodorizing filler module 413 is filled with a deodorizing filler, and the deodorizing filler is one or more combinations of Raschig rings, Pall rings, saddle-shaped fillers, and corrugated fillers.

[0057] The heating device 412 uses high-temperature steam for heating, and uses a plurality of grid grooves 4123 to form a plurality of heating zones. The plurality of grease channels 4125 make the heating effect more uniform, and the subsequent deodorization effect more thorough.

[0058] In embodiment 4, the cooling pipe device 415 includes a refrigeration cylinder 4151 and a plurality of refrigeration fins 4152. The refrigeration cylinder 4151 is provided with an oil inlet at the top and an oil outlet at the bottom. The top of the refrigeration cylinder 4151 is installed at the outlet of the oil collecting funnel 414, and the oil inlet is connected to the outlet of the oil collecting funnel 414. The plurality of refrigeration fins 4152 are respectively installed on the inner wall and the middle of the refrigeration cylinder 4151 to cool the incoming oil.

[0059] Embodiment 5, the dewaxing device 42 includes an annular dewaxing tank 421 and multiple filter material layers 422. The middle part of the annular dewaxing tank 421 is hollow, an oil inlet is provided on the top, and an oil outlet is provided on the bottom. The annular dewaxing tank 421 surrounds the outer wall of the refrigeration cylinder 4151. The top oil inlet of the annular dewaxing tank 421 is connected to the outlet of the cooling pipe device 415 through the circulating pump 43 and the pipeline. Multiple filter material layers 422 are installed on the inner wall of the annular dewaxing tank 421 at equal intervals. The oil outlet at the bottom of the annular dewaxing tank 421 is connected to the oil outlet at the bottom of the tower body 411 through a pipeline and a valve.

[0060] In Example 6, the filter material layer 422 is a combination of one or more of cotton filter cloth, activated carbon, diatomaceous earth, and molecular sieve.

[0061] The temperature of the cooled grease drops below the solidification point of the wax, and the wax begins to solidify. The solidified wax is retained in the plurality of filter material layers 422, while the dewaxed grease flows out.

[0062] The cooling plate 4152 can adopt a semiconductor cooling plate, and can achieve more precise temperature control in combination with a temperature sensor to ensure the deodorization effect and sufficient solidification of the wax, while avoiding solidification of the tea seed oil.

[0063] Embodiment 7 also includes an automatic controller 5, which includes multiple temperature sensors 51, a memory 52 and an industrial control computer 53. The multiple temperature sensors 51 respectively monitor the temperatures of the grid slot 4123, the refrigeration cylinder 4151 and the filter material layer 422 in the deodorization tower 41. The memory 52 is respectively communicated with the multiple temperature sensors 51. The industrial control computer 53 respectively controls the execution actions of the actuators of the pretreatment unit, the sewage leaching unit, the degumming and decolorization unit, and the deodorization and dewaxing unit.

[0064] Automatic process control is achieved through the temperature sensor 51 and the industrial control computer 53.

[0065] Embodiment 8, for tea seed oil anhydrous refining, degumming and decoloring process, using the equipment for tea seed oil anhydrous refining, degumming and decoloring process to refine tea seed oil, comprising the following steps:

[0066] Step 1, tea seeds to be processed are sent to the pretreatment unit through a conveyor belt, magnetic impurities are removed by a magnetic separator 13, the tea seeds are crushed to a set particle size by a crusher 14, and then the moisture of the tea seeds is adjusted to a set value by a softener 15;

[0067] Step 2, the tea seeds after the pretreatment unit are introduced into the leaching tank 21 and mixed with the organic solvent to extract the oil; the mixture is separated into oil and solid impurities by the first centrifugal separator 22;

[0068] Step 3, the separated oil is introduced into a degumming reaction tank 31, a phosphoric acid degumming agent is added to the tea seed oil, the degumming agent reacts with the colloid in the oil by stirring, and the colloid and other solid impurities generated by the reaction are removed by a second centrifugal separator 32;

[0069] Step 4, introducing the tea seed oil output from the second centrifugal separator 32 into a bleaching tower 33, adding an activated clay adsorbent to the oil, stirring and heating in the bleaching tower 33 so that the adsorbent adsorbs the pigment and impurities in the tea seed oil, and separating the clay adsorbed with the pigment and the tea seed oil through a filter press 34;

[0070] Step 5, introduce the tea seed oil into the deodorizing tower 41, input steam of set temperature through the high-temperature steam pipe 4122, heat the tea seed oil to the set temperature in the multiple grid slots 4123, open the electric control valve 4124, and let the tea seed oil fall into the deodorizing filling module 413, then fall into the oil collecting funnel 414 after passing through the deodorizing filling module 413, and finally fall into the refrigerating cylinder 4151, control the multiple refrigerating plates 4152 to cool the tea seed oil in the refrigerating cylinder 4151, and after reaching the set temperature, start the circulating pump 43 to pump the cooled tea seed oil into the annular dewaxing tank 421, and output the finished tea seed oil from the oil outlet of the deodorizing tower 41 after dewaxing through multiple filter material layers 422.

[0071] Example 9, in step 5, the set temperature of heating in the grid groove 4123 is 230°C-250°C, and the target temperature of the tea seed oil in the refrigeration cylinder 4151 is 5°C-8°C.

[0072] The following specific examples are provided to illustrate the implementation principle of the equipment and method for anhydrous refining, degumming and decolorization of tea seed oil of the present invention:

[0073] Pretreatment: Temperature control: Adjust the temperature of tea seeds before crushing.

[0074] Crushing: Ensure uniform crushing particle size.

[0075] No water leaching, leaching temperature: controlled at 40-50℃.

[0076] Stirring speed: Ensure thorough mixing.

[0077] Centrifugal separation: The speed and time are adjusted according to the characteristics of the oil.

[0078] Degumming: Degumming agent ratio: adjust according to the quality of grease.

[0079] Reaction time: usually 20-30 minutes.

[0080] Centrifugation: Adjust according to the colloid content.

[0081] Decolorization: adsorbent ratio: generally 1-5% of oil weight.

[0082] Decolorization temperature: controlled at 70-90℃.

[0083] Decolorization time: generally 30-60 minutes.

[0084] Deodorization and dewaxing: Deodorization temperature: 230-250℃.

[0085] Vacuum degree: 133-400Pa.

[0086] Cooling temperature: usually below 5℃.

[0087] Finished product processing:

[0088] Filtration accuracy: Select the appropriate filtration accuracy according to the oil requirements.

[0089] Measuring accuracy: ±0.5%.

[0090] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Equipment for tea seed oil anhydrous refining, degumming and decolorization process, characterized by: It comprises a pretreatment unit, a sewage leaching unit, a degumming and decoloring unit, and a deodorizing and dewaxing unit. The pretreatment unit comprises a magnetic separator (13), a crusher (14), and a softener (15); the inlet of the magnetic separator (13) is located below the feed hopper to receive tea seeds to be treated, the inlet of the crusher (14) is located at the outlet of the magnetic separator (13), and the inlet of the softener (15) is located at the outlet of the crusher (14); The sewage leaching unit comprises a leaching tank (21) and a first centrifugal separator (22); the inlet of the leaching tank (21) is connected to the outlet of the crusher (14), the water outlet of the softener (15) is connected to the water inlet of the leaching tank (21), and the inlet of the first centrifugal separator (22) is connected to the outlet of the leaching tank (21); The degumming and decolorizing unit comprises a degumming reaction tank (31), a second centrifugal separator (32), a decolorizing tower (33) and a filter press (34); the top inlet of the degumming reaction tank (31) is connected to the grease outlet of the centrifugal separator (22), the inlet of the second centrifugal separator (32) is connected to the grease outlet of the degumming reaction tank (31), the inlet of the decolorizing tower (33) is connected to the grease outlet of the second centrifugal separator (32), and the inlet of the filter press (34) is connected to the outlet of the decolorizing tower (33); The deodorizing and dewaxing unit comprises a deodorizing tower (41) and a dewaxing device (42), wherein the top inlet of the deodorizing tower (41) is connected to the outlet of the filter press (34), the dewaxing device (42) is located at the bottom of the deodorizing tower (41) and surrounds the periphery of the cooling pipeline device (415) of the deodorizing tower (41), and the outlet of the cooling pipeline device (415) of the deodorizing tower (41) is connected to the inlet of the dewaxing device (42) through a circulating pump (43) and a pipeline.

2. The equipment for anhydrous refining, degumming and decoloring of tea seed oil according to claim 1, characterized in that: The deodorizing tower (41) comprises a tower body (411), a heating device (412), a deodorizing filler module (413), an oil collecting funnel (414) and a cooling pipe device (415). The top of the tower body (411) is provided with an oil inlet and a high-temperature steam inlet, and the bottom is provided with an oil outlet. The heating device (412) comprises a high-temperature steam pipeline (4122), a plurality of grid slots (4123) and a plurality of electric control valves (4124). The high-temperature steam pipeline (4122) is connected to the high-temperature steam inlet at the top of the tower body (411). The plurality of grid slots (4123) are respectively installed in the tower body (411) and are located directly below the oil inlet and the high-temperature steam inlet. The grid slots (4123) are respectively installed in the tower body (411) and are located directly below the oil inlet and the high-temperature steam inlet. An oil outlet is provided at the bottom of the grid slot (4123); the electric control valve (4124) is installed at the oil outlet at the bottom of the grid slot (4123); when the temperature in the grid slot (4123) reaches a set temperature value, the electric control valve (4124) opens; the grid slot (4123) is provided with a plurality of grease channels (4125); the deodorizing filler module (413) is installed in the tower body (411) and is located below the opening of the electric control valve (4124); the oil collecting funnel (414) is installed in the tower body (411) and is located directly below the bottom of the deodorizing filler module (413); and the oil inlet of the cooling pipe device (415) is installed at the outlet of the oil collecting funnel (414).

3. The equipment for anhydrous refining, degumming and decoloring of tea seed oil according to claim 2, characterized in that: The deodorizing filler module (413) is filled with a deodorizing filler, which is a combination of one or more of a Raschig ring, a Pall ring, a saddle-shaped filler, and a corrugated filler.

4. The equipment for anhydrous refining, degumming and decoloring of tea seed oil according to claim 3, characterized in that: The cooling pipe device (415) comprises a refrigeration cylinder (4151) and a plurality of refrigeration fins (4152). The refrigeration cylinder (4151) is provided with an oil inlet at the top and an oil outlet at the bottom. The top of the refrigeration cylinder (4151) is installed at the outlet of the oil collecting funnel (414), and the oil inlet is connected to the outlet of the oil collecting funnel (414). The plurality of refrigeration fins (4152) are respectively installed on the inner wall and the middle of the refrigeration cylinder (4151) to cool the incoming oil.

5. The equipment for anhydrous refining, degumming and decoloring of tea seed oil according to claim 4, characterized in that: The dewaxing device (42) comprises an annular dewaxing tank (421) and a plurality of filter material layers (422); the annular dewaxing tank (421) is hollow in the middle, is provided with an oil inlet at the top, and is provided with an oil outlet at the bottom; the annular dewaxing tank (421) surrounds the outer wall of the refrigeration cylinder (4151); the top oil inlet of the annular dewaxing tank (421) is connected to the outlet of the cooling pipeline device (415) through a circulating pump (43) and a pipeline; the plurality of filter material layers (422) are installed at equal intervals on the inner wall of the annular dewaxing tank (421); and the oil outlet at the bottom of the annular dewaxing tank (421) is connected to the oil outlet at the bottom of the tower body (411) through a pipeline and a valve.

6. The equipment for anhydrous refining, degumming and decoloring of tea seed oil according to claim 5, characterized in that: The filter material layer (422) is one or more combinations of cotton filter cloth, activated carbon, diatomaceous earth, and molecular sieve.

7. The equipment for anhydrous refining, degumming and decoloring of tea seed oil according to claim 6, characterized in that: The system further comprises an automatic controller (5), the automatic controller (5) comprising a plurality of temperature sensors (51), a memory (52) and an industrial control computer (53), the plurality of temperature sensors (51) respectively monitoring the temperatures of the grid slot (4123), the refrigeration cylinder (4151) and the filter material layer (422) in the deodorizing tower (41), the memory (52) respectively communicating with the plurality of temperature sensors (51), and the industrial control computer (53) respectively controlling the execution actions of the actuators of the pretreatment unit, the sewage leaching unit, the degumming and decolorizing unit and the deodorizing and dewaxing unit.

8. A process for anhydrous refining, degumming and decoloring of tea seed oil, characterized in that: The process of refining tea seed oil using the equipment for anhydrous refining, degumming and decolorizing of tea seed oil according to claim 7 comprises the following steps: Step 1, tea seeds to be processed are sent to a pretreatment unit through a conveyor belt, magnetic impurities are removed by a magnetic separator (13), the tea seeds are crushed to a set particle size by a crusher (14), and then the moisture of the tea seeds is adjusted to a set value by a softener (15); Step 2, the tea seeds that have passed through the pretreatment unit are introduced into an extraction tank (21) and mixed with an organic solvent to extract oil; the mixture is separated into oil and solid impurities by a first centrifugal separator (22); Step 3, the separated oil is introduced into a degumming reaction tank (31), a phosphoric acid degumming agent is added to the tea seed oil, the degumming agent reacts with the colloid in the oil by stirring, and the colloid and other solid impurities generated by the reaction are removed by a second centrifugal separator (32); Step 4, introducing the tea seed oil output from the second centrifugal separator (32) into a decolorizing tower (33), adding an activated white clay adsorbent to the oil, stirring and heating in the decolorizing tower (33) so that the adsorbent adsorbs the pigment and impurities in the tea seed oil, and separating the white clay adsorbed with the pigment and the tea seed oil through a filter press (34); Step 5, introducing the tea seed oil into the deodorization tower (41), inputting steam of a set temperature through the high-temperature steam pipe (4122), heating the tea seed oil to the set temperature in the multiple grid slots (4123), opening the electric control valve (4124), and allowing the tea seed oil to fall into the deodorization filling module (413), and then fall into the oil collecting funnel (414) after passing through the deodorization filling module (413), and then fall into the refrigeration cylinder (4151), and then control multiple refrigeration plates (4152) to cool the tea seed oil in the refrigeration cylinder (4151). After reaching the set temperature, the circulation pump (43) is started to pump the cooled tea seed oil into the annular dewaxing tank (421), and after dewaxing through multiple filter material layers (422), the finished tea seed oil is output from the oil outlet of the deodorization tower (41).

9. The process for anhydrous refining, degumming and decoloring of tea seed oil according to claim 8, characterized in that: In step 5, the set temperature for heating in the grid slot (4123) is 230°C-250°C, and the target temperature of the tea seed oil in the refrigeration cylinder (4151) is 5°C-8°C.

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